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Ntt Docomo Inc patents (2015 archive)


Recent patent applications related to Ntt Docomo Inc. Ntt Docomo Inc is listed as an Agent/Assignee. Note: Ntt Docomo Inc may have other listings under different names/spellings. We're not affiliated with Ntt Docomo Inc, we're just tracking patents.

ARCHIVE: New 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009 | Company Directory "N" | Ntt Docomo Inc-related inventors


12/31/15 / #20150382327

User terminal, radio base station and radio communication method

The present invention is designed to provide a user terminal, a radio base station and a radio communication method of novel structures that can achieve a good communication environment. A radio base station non-orthogonal-multiplexes downlink signals for a plurality of user terminals over a given radio resource, a user terminal having received the downlink signals for the plurality of user terminals decodes downlink signal for another user terminal, judges whether or not the downlink signal for the other user terminal has been successfully received, based on the decoding result of the downlink signal, reports a judgement result as to whether or not the downlink signal for the other user terminal has been successfully received and a judgement result as to whether or not a downlink signal for the user terminal has been successfully received, to the radio base station, and then the radio base station executes retransmission control of downlink signals based on reports from the user terminal.. ... Ntt Docomo Inc

12/31/15 / #20150381763

Communication system, control apparatus, application server, and device

An object is to increase the efficiency of transmission of m2m communication data by restricting the m2m communication in accordance with the communication condition of an access network 2. In a communication system according to the present invention, the access network 2 is configured to transmit instruction information which specifies the communication methods of m2m applications 30, to any of an m2m platform 1, m2m application servers #1 to #n, and m2m devices #1/#11/#12 in accordance with the communication condition. ... Ntt Docomo Inc

12/24/15 / #20150373720

Mobile station and mobile communication system

An appropriate operation in implementation of “inter-enb ca” is performed. A mobile station ue according to the present invention includes: a generation unit 11 configured to generate a signal to be transmitted; and a judgment unit 12 configured to change a target radio base station enb for transmission of the signal based on the type of the signal.. ... Ntt Docomo Inc

12/24/15 / #20150373684

Base station and method

Techniques for assigning uplink dedicated resources in inter-site or inter-enb carrier aggregation promptly are disclosed. One aspect of the present invention relates to a base station including a transmission and reception unit configured to use radio resources to communicate with a user equipment and a resource management unit configured to manage the radio resources, wherein the resource management unit comprises a pooling information storage unit configured to store pooling information indicative of radio resources reserved for the base station by a non-anchor base station in inter-enb carrier aggregation, and the resource management unit autonomously assigns the radio resources indicated in the pooling information to the user equipment.. ... Ntt Docomo Inc

12/24/15 / #20150373654

Radio communication system, radio communication method, radio base station and user terminal

The present invention is designed to establish synchronization between transmission points when downlink signals are transmitted from a plurality of transmission points to a user terminal. A radio communication system has a first radio base station that forms a first cell, a second radio base station that forms a second cell, which is placed on the area of the first cell in an overlapping manner, and a user terminal that is capable of carrying out radio communication with the first radio base station and the second radio base station, and the second radio base station has a receiving section that receives synchronization correction information, which is for establishing synchronization with a synchronization target, from the user terminal, and a synchronization correction section that corrects synchronization based on the synchronization correction information.. ... Ntt Docomo Inc

12/24/15 / #20150373601

Radio base station, user terminal, cell selection method and radio communication system

A system in which user terminal is able to aggressively select small cells in a radio communication system in which a macro cell and small cells are arranged to overlap each other is disclosed. A macro base station (m) configured to form a macro cell carries out the steps of determining the offset value to use in cell selection in a user terminal (ue) based on transmission property information of a second carrier in the small cell, and reporting the offset value to the user terminal (ue). ... Ntt Docomo Inc

12/24/15 / #20150373586

User equipment, base station and method

Some techniques for promptly assigning uplink dedicated resources in inter-site or inter-enb carrier aggregation are disclosed. One aspect of the present invention relates to a user equipment including a transmission and reception unit configured to use radio resources to communicate with multiple base stations, a resource management unit configured to manage the radio resources and a cell type determination unit configured to determine a type of a cell providing the radio resources, wherein when the resource management unit detects occurrence of a release trigger for assigned uplink dedicated resources, the cell type determination unit determines a type of a cell providing the uplink dedicated resources and retains or releases the uplink dedicated resources depending on the determined cell type.. ... Ntt Docomo Inc

12/24/15 / #20150373360

Moving picture encoding apparatus, moving picture decoding apparatus, moving picture encoding method, moving picture decoding method, moving picture encoding program, and moving picture decoding program

An object of the present invention is to increase efficiency of information compression in coding and decoding. A moving picture encoding apparatus 10 of the present invention has a motion vector predicting part for performing, based on a temporal relation among adjacent reference frame images 703a, 703b, 703c referred to for detecting motion vectors of adjacent blocks adjacent to a coding target block, a target reference frame image 702 referred to for detecting a motion vector of the target block, and a target frame image 701 being the frame image of the coding target, or based on time information thereof, a correction of scaling the motion vectors 751a, 751b, 751c of the adjacent blocks on the basis of the target reference frame image 702; and a determination of an optimum predicted motion vector based on the motion vectors of the adjacent blocks; and thereby predicting the optimum predicted motion vector after the correction.. ... Ntt Docomo Inc

12/24/15 / #20150372851

Radio base station, user terminal and radio communication method

In order to compensate for frequency errors even when introducing a new carrier, the present invention provides a radio base station having a configuring section that configures a first carrier type subframe in which cell-specific reference signals are mapped at a predetermined density, and a second carrier type subframe in which cell-specific reference signals are mapped at a density that is lower than the density of the first carrier type subframe; a generating section that, when configuring the second carrier type subframe, generates at least a synchronization signal to use for frequency synchronization; and a transmitting section that transmits association information for associating the synchronization signal with an other downlink signal that is transmitted in the second carrier type subframe.. . ... Ntt Docomo Inc

12/24/15 / #20150372777

User apparatus, base station, interference reducing method and interference reducing control information notification method

A user apparatus in a radio communication system including a plurality of base stations, including a reception unit that receives, from a connecting base station, control information to be used for reducing a signal of a control channel, that causes interference, sent from an interference base station for the user apparatus, and an interference reducing unit that reduces the signal of the control channel that causes the interference by using the control information to obtain a desired signal sent from the connecting base station.. . ... Ntt Docomo Inc

12/17/15 / #20150365863

User apparatus, base station, switch control method, and scheduling control method

A user apparatus for communicating with a base station corresponding to a first radio communication scheme, including first radio communication means that performs communication by the first radio communication scheme; second radio communication means that performs communication by a second radio communication scheme; and switch control means that switches between communication by the first radio communication scheme and communication by the second radio communication scheme, wherein, when the switch control means determines to switch from communication by the first radio communication scheme to communication by the second radio communication scheme, the switch control means transmits a switch notification to the base station.. . ... Ntt Docomo Inc

12/17/15 / #20150365516

Mobile station

A user is easily informed of applications to be restricted easily when restriction processing on per application basis is being carried out. A mobile station according to the present invention includes: a storage unit configured to store one or more applications executable on the mobile station; a display unit configured to display an icon for each application on a display; and a determination unit configured to determine an application to be restricted based on ssac information or acdc information. ... Ntt Docomo Inc

12/17/15 / #20150365181

User terminal, radio base station and adaptive modulation and coding method

The present invention is designed to make possible adaptive modulation and coding (amc) that supports high-order modulation schemes. The adaptive modulation and coding method of the present invention is an adaptive modulation and coding method for a downlink shared channel, and includes, in a user terminal, the steps of measuring channel quality based on a reference signal from the radio base station, acquiring a channel quality indicator to indicate the modulation scheme and the coding rate that are applicable to the downlink shared channel in the channel quality, from a table in which channel quality indicators, modulation schemes and coding rates are associated with each other, and transmitting the channel quality indicator to the radio base station, and the modulation schemes include a modulation scheme of a higher order than 64 qam.. ... Ntt Docomo Inc

12/17/15 / #20150365170

System for implementing a radio over fiber transmission in a passive optical network

A system for implementing a radio over fiber (rof) transmission in a passive optical network (pon), said passive optical network comprising a trunk line, a remote node, and a plurality of leaf nodes connected to said remote node, wherein one of said plurality of leaf nodes comprises a baseband processing unit for performing a baseband processing on a signal received via said trunk line to perform the transformation to radio over fiber by generating a radio over fiber signal and to forward the resulting radio over fiber signal to said remote node, wherein said remote node is adapted to forward the radio over fiber signal received from said leaf node to the other leaf nodes of said passive optical network.. . ... Ntt Docomo Inc

12/10/15 / #20150359002

Radio base station and mobile station

A system and method to prevent collision between mobile stations to which the same c-rnti is allocated in a simple implementation while avoiding a problem of c-rnti depletion in a phantom cell is disclosed. A radio base station includes an allocation unit configured to allocate multiple c-rntis to each of mobile stations, and the allocation unit performs adjustment such that collision of search spaces to which pdcch resources are allocated does not occur among the multiple mobile stations.. ... Ntt Docomo Inc

12/10/15 / #20150358984

Router device

An object of the present invention is to perform appropriate priority control even when tethering is performed. A wifi router 10 of the present invention includes: an establishment unit 12 configured to establish a priority call bearer and a low priority call bearer between the wifi router 10 and a radio base station enb; and a control unit 13 configured to determine through which one of the priority call bearer and the low priority call bearer received data is to be transferred, based on a priority of the received data.. ... Ntt Docomo Inc

12/10/15 / #20150358954

User device, gateway device, radio base station, mobile communication system, and mobile communication method

Provided are a user device, a gateway device, a radio base station, a mobile communication system, and a mobile communication method capable of considerably reducing the number of control signals necessary for small data transmission (sdt). A ue 100 transitions from rrc-idle state where no communication bearer in the control plane is established and emm-idle state where communication in the user plane is not enabled to rrc-connected state where a communication bearer in the control plane is established and the emm-idle state. ... Ntt Docomo Inc

12/10/15 / #20150358832

Superordinate base station, subordinate base station, and radio communication system

A superordinate base station, a subordinate base station with control functionality that is more limited than the control functionality of the superordinate base station, a user device that can communicate by radio with the superordinate base station and with the subordinate base station, a switching center, and a gateway device are provided. The superordinate base station has interfaces for control-plane communication and a transceiving unit that performs transceiving with the subordinate base station through an x3 interface. ... Ntt Docomo Inc

12/10/15 / #20150358802

Distance estimation method, transmission power control method, user apparatus, and base station

A distance estimation method for, by causing a first user apparatus to receive a discovery signal from a second user apparatus, estimating a distance between the first user apparatus and the second user apparatus is provided. The distance estimation method includes a step of receiving from the second user apparatus the discovery signal including transmission power information of the discovery signal, a step of obtaining the transmission power information from the discovery signal, and a step of estimating the distance between the first user apparatus and the second user apparatus from receive power information of the discovery signal at the first user apparatus and the transmission power information.. ... Ntt Docomo Inc

12/10/15 / #20150358104

Mobile communication terminal

A mobile communication terminal calculates an interference rejection combining reception weight matrix based on a vector representing a reference signal transmitted from a desired base station so as to reduce interference with a desired beam of radio waves. The mobile communication terminal estimates, from the interference rejection combining reception weight matrix and the reference signal, an all received power expected when an irc is implemented, and estimates, from an interference rejection combining weight vector, a channel matrix, and a reference signal sequence, a desired reference signal power expected when an irc is implemented. ... Ntt Docomo Inc

12/10/15 / #20150358103

Mobile communication terminal

A mobile communication terminal calculates an interference rejection combining reception weight matrix so as to reduce interference with a desired beam by another beam, in which the desired beam is a beam of radio waves transmitted from a desired base station. The mobile communication terminal estimates an interference and noise power expected when the irc is implemented based on the interference rejection combining reception weight matrix and calculates a signal-to-interference-plus-noise ratio expected when the irc is implemented based on the interference and noise power. ... Ntt Docomo Inc

12/10/15 / #20150358098

Radio base station, user terminal and radio communication method

The present invention is designed to reduce the impact of interference even when different dl/ul configurations are applied between neighboring transmission points (radio base stations). A radio base station which can communicate with a user terminal by means of time division duplexing, and furthermore change and control the dl/ul configuration, has an interference measurement section that measures the interference level from other radio base stations in at least a ul subframe, and a scheduling control section that changes the feedback method of uplink control signals, which the user terminal feeds back in the ul subframe in response to downlink signals that have been transmitted in dl subframes, based on the measured interference level.. ... Ntt Docomo Inc

12/10/15 / #20150358064

Radio base station, user terminal, radio communication method and radio communication system

The present invention is designed to provide a radio base station, a user terminal, a radio communication method and a radio communication system of novel structures that can achieve improved throughput and system capacity. A radio base station transmits downlink reference signals that are specific to a plurality of transmission beams, a plurality of user terminals feed back coarse channel state information that is acquired by channel estimation, to the radio base station, the radio base station selects a plurality of user terminals to make feed back accurate channel state information based on the coarse channel state information, a plurality of user terminals that are selected feed back accurate channel state information, the radio base station determines a plurality of user terminals to non-orthogonal-multiplex, per transmission beam, based on the accurate channel state information, and non-orthogonal-multiplexes downlink signals, and a plurality of user terminals that are determined, after having canceled interference between the transmission beams by means of a linear filter, cancels downlink signals for other terminals, from the downlink signals that are non-orthogonal-multiplexed in each transmission beam.. ... Ntt Docomo Inc

12/10/15 / #20150355308

Rfid tag search method, non-transitory storage medium storing rfid tag search program, and rfid tag search device

A method to be executed by a user terminal for searching for locations of one or more wireless devices that are located within an area in which the one or more wireless devices can wirelessly communicate with the user terminal, wherein each of the one or more wireless devices periodically transmits a beacon signal. The method includes detecting a number of the one or more wireless devices that are located within the area based on the beacon signals; determining a transmission period for transmitting the beacon signals depending on the number of the one or more wireless devices; and instructing the one or more wireless devices that are located within the area to transmit the beacon signals in accordance with the determined transmission period.. ... Ntt Docomo Inc

12/03/15 / #20150351150

Mobile communication terminal and radio access network device

The present invention shortens an out-of-service duration while suppressing an increase of power consumption. A mobile communication terminal ue of the present invention includes a control unit 11 configured to, when the mobile communication terminal ue fails, consecutively a predetermined number of times, to transmit a. ... Ntt Docomo Inc

12/03/15 / #20150351104

Mobile station, reception method, base station, and method of controlling an operation of a receiver

In one aspect of the present invention, a mobile station includes a receiver type control signal reception unit configured to receive a receiver type control signal indicating whether to allow an operation of a receiver in association with at least one receiver type; and a receiver configuration unit configured to configure the operation of the receiver based on the received receiver type control signal.. . ... Ntt Docomo Inc

12/03/15 / #20150350896

Secure radio access with inter-enb carrier aggregation

A system for securing radio access with inter-enb carrier aggregation including a primary enb configured to secure transmission with a user equipment. The primary enb generates a base key and derives a set of derived keys used to secure transmission on a set of radio bearers that correspond to the set of derived keys. ... Ntt Docomo Inc

12/03/15 / #20150350882

Mobile station and radio base station

“inter-site ca” using ccs under different radio base stations enb in an asynchronous state can be performed appropriately. A mobile station ue of the present invention comprises a transmission unit 12 configured to transmit “ue capability information” to a radio base station enb, the “ue capability information” indicating whether the mobile station ue is capable of performing “inter-site ca” using ccs under different radio base stations enb in the asynchronous state.. ... Ntt Docomo Inc

12/03/15 / #20150350644

Moving image prediction encoding/decoding system

A moving image encoding/decoding system may include a video predictive encoding device, which may include: an encoding device which encodes each of a plurality of input pictures to generate compressed picture data including a random access picture, and encodes data about display order information of each picture; a restoration device which decodes the compressed picture data to restore a reproduced picture; a picture storage device which stores the reproduced picture as a reference picture; and a memory management device which controls the picture storage device. Following completion of an encoding process of generating the random access picture, the memory management device refreshes the picture storage device by setting every reference picture in the picture storage device, except for the random access picture, as unnecessary immediately before or immediately after encoding a picture with display order information larger than the display order information of the random access picture.. ... Ntt Docomo Inc

12/03/15 / #20150350459

Billing system, billing apparatus, and billing method

Provided are a billing system, a billing apparatus, and a billing method capable of billing for device-to-device direct communication (d2d communication) performed using a radio access network such as lie. A terminal 400a sends a billing apparatus 200 billing-related information to be used to bill for direct communication. ... Ntt Docomo Inc

12/03/15 / #20150349866

Radio base station, user terminal, radio communication method and radio communication system

The present invention is designed to provide a radio base station, a user terminal, a radio communication method and a radio communication system of novel structures that can achieve improved throughput and system capacity. A radio base station transmits downlink reference signals that are specific to a plurality of transmission beams, a plurality of user terminals feed back channel state information acquired by channel estimation using the downlink reference signals, to the radio base station, the radio base station determines a plurality of user terminals to non-orthogonal-multiplex, per transmission beam, based on the channel state information that is fed back, and non-orthogonal-multiplexes downlink signals for the plurality of user terminals that are determined, in each of the plurality of transmission beams, and a plurality of user terminals that are determined, after having canceled interference between the transmission beams by means of a linear filter, demodulates downlink signals for the subject terminal, from the downlink signals that are non-orthogonal-multiplexed in each transmission beam.. ... Ntt Docomo Inc

11/26/15 / #20150341949

Radio communication system, radio base station apparatus, user terminal and communication control method

In order to signal information that is required in rate matching efficiently, even when comp transmission/reception techniques are employed, comp transmission is scheduled, in which a plurality of radio base station apparatuses (enbs) serve as transmission points and carry out coordinated multi-point transmission with respect to a user terminal (ue), downlink control information is generated, in which a rate matching pattern is incorporated, in a physical downlink control channel, based on a table, in which rate matching patterns that are required are mapped to bit data in association with transmission modes in comp transmission, a physical downlink control channel is transmitted and also a physical downlink shared data channel is transmitted, to the user terminal (ue), and in the user terminal (ue), the rate matching pattern incorporated in the downlink control information, is specified, based on a table of the same contents as in the radio base station apparatuses (enbs).. . ... Ntt Docomo Inc

11/26/15 / #20150341857

Mobile station and mobile communication method

The present invention achieves a drx control appropriate from the view point of battery saving. A mobile station ue in the present invention includes a control unit 13 configured to detect rlf when downlink radio quality falls below a predetermined threshold value in all of a plurality of measurement target cells #1 to #6.. ... Ntt Docomo Inc

11/26/15 / #20150341131

User apparatus, base station, interference reducing method and interference reducing control information notification method

A user apparatus, in a radio communication system including a plurality of base stations, including a reception unit configured to receive, from a connecting base station, control information to be used for reducing an interference signal sent from an interference base station for the user apparatus; and an interference reducing unit configured to reduce the interference signal by using the control information to obtain a desired signal sent from the connecting base station.. . ... Ntt Docomo Inc

11/19/15 / #20150334725

Radio base station, router device, and mobile station

An object of the present invention is to perform appropriate priority control even when tethering is performed. A radio base station enb of the present invention includes an instruction unit 12 configured to give an instruction to a priority call terminal ue#1 to transmit data through a mobile network when a transmission rate of data from the priority call terminal ue#1 falls below a predetermined threshold value in a state where a low priority call bearer is established between the radio base station enb and a wifi router 10.. ... Ntt Docomo Inc

11/19/15 / #20150334699

User apparatus and uplink control information transmission method

A user apparatus in a mobile communication system in which carrier aggregation is performed using a plurality of cells, including: a control unit configured to determine whether a physical uplink shared channel is set in the user apparatus at a transmission timing of uplink control information, and to determine to transmit the uplink control information by using the physical uplink shared channel when the physical uplink shared channel is set; and a transmission unit configured to transmit the uplink control information to a radio base station using the physical uplink shared channel, wherein the control unit determines, when a physical uplink shared channel is set in a first cell in the plurality of cells, to transmit the uplink control information by using the physical uplink shared channel, and the control unit determines, when no physical uplink shared channel is set in the first cell, to transmit the uplink control information by using a physical uplink shared channel in a second cell.. . ... Ntt Docomo Inc

11/19/15 / #20150334663

Radio terminal apparatus, base station apparatus, and radio communication control method

A radio terminal apparatus is provided. When the radio terminal apparatus simultaneously transmits a plurality of modulated waves having different frequencies, the radio terminal apparatus can effectively suppress intermodulation distortions without excessively reducing the transmission powers. ... Ntt Docomo Inc

11/19/15 / #20150334639

Communication system, mobile terminal apparatus, local area base station apparatus and communication method

The present invention is designed to provide highly efficient local area radio access. A communication system, in which a mobile terminal apparatus (10) detects a local area base station apparatus (30) to connect to, among local area base station apparatuses (30), is configured such that the local area base station apparatuses (30) transmit detection signals to be used to detect the local area base station apparatus (30), to the mobile terminal apparatus (10), in a radio communication scheme for the local areas, which is different from the radio communication scheme for the wide area, and the mobile terminal apparatus (10) transmits detection signal measurement results to the local area base station apparatus (30), through an uplink channel that is defined in the radio communication scheme for the local areas.. ... Ntt Docomo Inc

11/19/15 / #20150334603

Mobile station and radio base station

An objective is to enable a radio base station enb to recognize a time point when a transition of an scell to an active state is completed. A mobile station ue according to the invention includes a transmission unit 14 configured to, when an activation command for a deactive scell is received, start reporting of csi in the scell to the radio base station enb at predetermined timing before transition of an scell to an active state is completed. ... Ntt Docomo Inc

11/12/15 / #20150327230

User terminal radio base station and radio communication method

In order to control feedback control information in uplink transmission appropriately even when using carrier aggregation in hetnet, the present invention provides a user terminal that is able to communicate with a plurality of radio base stations having overlapping coverage areas by using carrier aggregation, the user terminal comprising: a reception section that receives downlink shared channel signals using component carriers of a primary cell and a secondary cell; a generating section that generates transmission acknowledgement signals in response to the downlink shared channel signals; and an allocating section that allocates the transmission acknowledgement signals to predetermined uplink control channel resources, wherein the allocating section allocates the transmission acknowledgement signals to either or both of uplink control channel resources of the primary cell and uplink control channel resources of the secondary cell in accordance with contents of the transmission acknowledgement signals and/or an uplink control channel format.. . ... Ntt Docomo Inc

11/12/15 / #20150324458

Information-processing device, server device, interaction system, and program

Identifying unit identifies a character selected by a user from among plural characters in a terminal, through communication with the terminal via communication unit. Comparison unit, when a first character is identified by identifying unit, compares a history of selections of the first character and a history of selections of a second character with reference to history database. ... Ntt Docomo Inc

11/05/15 / #20150319795

Radio communication system and control method

A radio communication system includes at least one user equipment, a first base station, a second base station, a first gateway, a second gateway, and a switching station. The switching station decides whether or not a gateway through which communication executed by the user equipment should be routed is the second gateway. ... Ntt Docomo Inc

11/05/15 / #20150319775

Radio base station, user terminal and fading frequency estimation method

The present invention is designed so that a fading frequency estimation method that can improve the mobility of user terminals in a hetnet can be provided. The fading frequency estimation method according to the present invention includes the steps, in which a radio base station arranges reference signals, using an arrangement format, in which the reference signals, which are used to estimate the fading frequency in the user terminal, are arranged in a relatively high density, in at least part of the radio resources allocated for a downlink shared data channel, and transmits allocation information of the radio resources for the downlink shared data channel to the user terminal, and the user terminal estimates the fading frequency based on the channel estimation values of the reference signals, and transmits the estimated fading frequency to the radio base station in response to a transmission request from the radio base station.. ... Ntt Docomo Inc

11/05/15 / #20150319761

Radio base station, user terminal and radio communication method

The present invention is designed to allow effective use of frequency resources even when a plurality of user terminals of varying capabilities coexist. A radio base station, which communicates with a user terminal by using a plurality of component carriers, has a configuration section that configures a subframe of a first carrier type, which a plurality of user terminals of varying capabilities each can receive, and a subframe of a second carrier type, which part of the plurality of user terminals can receive, in component carriers, and a transmission section that transmits downlink signals to the user terminal by using the first carrier type and the second carrier type, and the configuration section configures the subframe of the first carrier type and the subframe of the second carrier type, on a dynamically changing basis, in at least one of the plurality of component carriers.. ... Ntt Docomo Inc

11/05/15 / #20150319641

Transmission control method for buffer status report, user equipment, and mobile communication system

A transmission control method for buffer status reporting includes the steps of, by a network, configuring inter-site uplink carrier aggregation based upon at least one of a data size accumulated in a buffer of user equipment in communication with a first radio base station of a serving cell or a quality of a cell under a second radio base station, sending information of the configuration of the inter-site uplink carrier aggregation from the first radio base station to the user equipment, and transmitting a buffer status report from the user equipment to the second radio base station upon configuration of the inter-site uplink carrier aggregation.. . ... Ntt Docomo Inc

11/05/15 / #20150317174

Host providing system and host providing method

A host providing system includes a physical host managing node which controls one or more physical servers and can manage a usage state of a physical host formed in the physical server, and thus the physical server for forming a physical host can be controlled in the system. In addition, a single physical host managing node is selected depending on instance type information included in an instance starting request from a user terminal, and the instance starting request is sent to the selected physical host managing node. ... Ntt Docomo Inc

10/29/15 / #20150312922

User equipment and transmission control method

A user equipment has a transmission and reception unit configured to transmit and receive a radio channel to/from a base station via multiple cells configured by carrier aggregation, a simultaneous transmission availability determination unit configured to, in response to an occurrence of an event to transmit an uplink control channel in the multiple cells simultaneously, determine whether the uplink control channel can be simultaneously transmitted in the multiple cells, and a transmission control unit configured to, if the uplink control channel can be simultaneously transmitted in the multiple cells, instruct the transmission and reception unit to transmit the uplink control channel in the multiple cells simultaneously, and if the uplink control channel cannot be simultaneously transmitted in the multiple cells, control transmission of the uplink control channel in accordance with a transmission priority.. . ... Ntt Docomo Inc

10/29/15 / #20150312866

User terminal, radio communication system and radio communication method

In order to apply power scaling in a signal overlapping period where uplink transmission power exceeds an upper limit, while minimizing deterioration of uplink transmission quality, the present invention provides a user terminal that is capable of communicating with a plurality of radio base stations via a plurality of component carriers in a radio communication system using a system band configurable with the plurality of component carriers, the user terminal having: a transmitting section (106) that transmits an uplink physical channel at an uplink transmission timing, the plurality of component carriers being grouped into a plurality of timing groups, and the transmission timing being controlled per timing group; and a power control section (1084) that, when the uplink transmission timing is controlled per timing group, performs power scaling preferentially on physical channels in a full overlapping period in which the physical channels are of same subframe number and overlap each other across component carriers.. . ... Ntt Docomo Inc

10/29/15 / #20150312810

Radio communication system and communication control method

A radio communication system includes a user device, a first base station, a second base station, a third base station, a gateway device, and a switching center. A user-plane path is established between the user device and the gateway device via the third base station. ... Ntt Docomo Inc

10/29/15 / #20150312752

Radio base station

Even when a same c-rnti is allocated to multiple mobile stations in a phantom cell, a collision between the mobile stations ue to which the same c-rnti is allocated is avoided. A radio base station phnb#10 according to the present invention is configured to manage a cell #10 (phantom cell) which is formed by linking multiple small cells and includes an allocation unit 11 configured to allocate a same c-rntiph to multiple mobile stations ue#1/ue#3 which are separated by at least a predetermined distance in the cell #10.. ... Ntt Docomo Inc

10/29/15 / #20150309874

A method and apparatus for code length adaptation for access to key-value based cloud storage systems

A method and apparatus is disclosed herein for code length adaptation for access to key-value based storage systems. In one embodiment, the method comprises receiving a data object and a request; dividing the data object into k portions, where k is an integer; selecting an fec coding rate based on backlog associated with at least one queue; applying fec coding based on the fec rate set to the k portions to create n fec coded data blocks, where n is an integer greater than or equal to k; and sending the n fec coded data blocks to the storage system.. ... Ntt Docomo Inc

10/22/15 / #20150304992

Radio communication system, radio base station apparatus and retransmission control method

A radio communication system, a radio base station apparatus and a retransmission control method is provided that can realize a highly efficient retransmission control method in a comp environment. The retransmission control method is a retransmission control method in a radio communication system which has a first and second radio base station apparatus that carry out coordinated multiple-point transmission with respect to a user terminal, and in which coordinated multiple-point transmission is applicable, and, with this retransmission control method, the first radio base station apparatus and the second radio base station apparatus execute retransmission control for downlink signals received in the user terminal, on a shared basis between the radio base station apparatuses, and one radio base station apparatus of the first radio base station apparatus and the second radio base station apparatus sends a report to the user terminal to the effect that shared retransmission control is executed.. ... Ntt Docomo Inc

10/22/15 / #20150304927

Mobile communication method, radio access network apparatus, and mobile station

Appropriate “idle mode cell reselection” is achieved by changing a threshold used to perform “idle mode cell reselection” between a case of performing rsrq measurement in six resource blocks and a case of performing “wideband rsrq measurement.” a mobile communication method according to the present invention includes a step of causing a radio base station enb or a radio network controller rnc to broadcast not only existing parameters used to perform cell reselection processing based on a result of the rsrq measurement in six resource blocks, but also wideband parameters used to perform “idle mode cell reselection” based on a measurement result of “wideband rsrq measurement.”. . ... Ntt Docomo Inc

10/22/15 / #20150304915

Mobile station and control method

A mobile station for communication using carrier aggregation includes a secondary cell state management unit configured to manage whether a state of a secondary cell is an activation state or a deactivation state; and a transmission control unit configured to stop transmission of uplink control information on a physical uplink control channel in a first secondary cell, when the state of the first secondary cell managed by the secondary cell state management unit is the deactivation state at a timing of transmission of the physical uplink control channel in the first secondary cell.. . ... Ntt Docomo Inc

10/22/15 / #20150304914

Mobile communication method, radio base station, and mobile station

A c-rntiph in a phantom cell is allocated to a mobile station ue after the mobile station ue is identified. A mobile communication method according to the present invention includes the steps of: when a cell #10 formed by linking multiple small cells is established in a manner as to at least partially overlap a coverage area of a cell #1 under control of a radio base station enb#1, notifying a mobile station ue#1 in communication in the cell #1 of a c-rntiph in the cell #10 by the radio base station enb#1 by sending “rrc connection reconfiguration”; and setting, by the mobile station ue#1, the c-rntiph in the cell #10 in addition to a c-rntimacro in the cell #1.. ... Ntt Docomo Inc

10/22/15 / #20150304903

Mobile communication method and mobile station

The present invention avoids a situation where pdcch and pusch resources for transmitting a “pdcp status report” are wasted, even when a “pdcp re-establishment procedure” is started. A mobile communication method of the present invention comprises the steps of: causing a mobile station ue to discard a “pdcp status report #1” and generate a “pdcp status report #2” when detecting a start trigger for a “pdcp re-establishment” again before completing transmission of the “pdcp status report #1”; and causing the mobile station ue to transmit the “pdcp status report #2” to a radio base station enb after completing the “pdcp re-establishment”.. ... Ntt Docomo Inc

10/01/15 / #20150282174

User terminal, radio base station, radio communication system and radio communication method

. . The present invention is designed to enable 1-cc transmission when carrier aggregation is carried out by aggregating a first component carrier, which is used in a macro cell, and a second component carrier, which is used in a small cell. A user terminal according to the present invention receives duration configuration information, which indicates a first duration to communicate with a macro base station by using the first component carrier, and a second duration to communicate with a small base station by using the second component carrier, configures the first duration and the second duration based on the duration configuration information, transmits uplink signals for the macro base station by using the first component carrier in the first duration, and transmits uplink signals for the small base station by using the second component carrier in the second duration.. ... Ntt Docomo Inc

10/01/15 / #20150282133

Radio communication method, radio communication system, radio base station and user terminal

In order to minimize deterioration in the reception accuracy even when downlink signals are transmitted from transmission points to a user terminal, a radio communication method for multiple radio base stations and a user terminal capable of communicating with the radio base stations is provided. The method involves transmitting downlink control information, a ue-specific reference signal and a channel state measurement reference signal to the user terminal, transmitting information about configuration of the channel state measurement reference signal, transmitting association information in which the configuration of the channel state measurement reference signal is associated with an information element contained in the downlink control information, determining a channel state measurement reference signal that is associated with a received ue-specific reference signal based on the association information, and performing reception processing, assuming that the ue-specific reference signal and the channel state measurement reference signal are transmitted from a same radio base station.. ... Ntt Docomo Inc

10/01/15 / #20150282131

Communication system, base station apparatus and communication method

The present invention is designed to provide highly efficient small cell radio access that is specially customized for small cells. In a communication system having a macro base station apparatus (30) that forms a macro cell and a plurality of local base station apparatuses that are connected with the macro base station apparatus (30) via a communication link and that form small cells inside the macro cell, the macro base station apparatus (30) or the local base station apparatuses allocate signals to be transmitted and received by the small cells to specific radio resources and transmit the signals, and also report identification information that can identify the radio resources where the signals transmitted and r received by the small cells are allocated, to a mobile terminal apparatus.. ... Ntt Docomo Inc

10/01/15 / #20150282129

Radio base station, user terminal, radio communication system and radio communication method

The present invention is designed to make it possible to adequately form the search space candidates to be used in the blind decoding of downlink control information when the radio resource region for downlink control channels is expanded. The radio base station of the present invention is a radio base station that transmits downlink control information for a user terminal by using an enhanced downlink control channel that is frequency-division-multiplexed with a downlink shared data channel, and has a configuring section that configures, for the user terminal, a plurality of resource sets that are each formed by including a plurality of resource blocks allocated to the enhanced downlink control channel, and a determining section that determines enhanced control channel elements to constitute a plurality of search space candidates such that the plurality of search space candidates of each resource set are all placed in different resource blocks.. ... Ntt Docomo Inc

10/01/15 / #20150282102

Radio communication system, base station apparatus, user terminal and radio communication method

The present invention is designed to make it possible to apply power scaling to a period where the upper limit value is exceeded, while maintaining uplink transmission quality. In a radio communication system 1 in which multiple cells (c1 and c2) are formed, a base station apparatus (20) forms a first cell c1, which is one of the multiple cells, and has a control section (234) that controls uplink transmission times per timing group, which includes one component carrier or a plurality of component carriers, and a transmission section (106) that signals a timing group or a component carrier determined as a target of power scaling, as power scaling target information, in which the timing group or the component carrier, to which power scaling is applied, is expressly determined, to a the user terminal (10).. ... Ntt Docomo Inc

10/01/15 / #20150277760

Terminal device, screen display method, hover position correction method, and recording medium

A terminal device is provided which is capable of making a key display with which a user makes an input easily. A hover position detection unit measures a distribution of a physical quantity indicating a degree of approach of an operation finger to a touch panel, and detects a hover position from the distribution of the physical quantity. ... Ntt Docomo Inc

09/17/15 / #20150264712

Mobile station and radio base station

When an “always-on” method is applied, a situation of a shortage in resources for transmitting a sr is avoided while avoiding a delay in transmission of an uplink data signal or a drop in use efficiency of resources. A mobile station (ue) of the invention includes a transmission unit (23) configured, when resources for a collision-type sr to be shared with a different mobile station (ue) are set up, to transmit a collision-type sr including an identifier of the mobile station (ue) by using the resources for a collision-type sr. ... Ntt Docomo Inc

09/17/15 / #20150264694

Radio communication system, base station apparatus, user terminal and radio communication method

The present invention is designed to provide a radio communication system, a base station apparatus, a user terminal and a radio communication method, whereby, when a plurality of kinds of csi processes are configured, it is possible to lighten the processing load, and, furthermore, reduce the deterioration of throughput performance. The radio communication method of the present invention includes a plurality of base station apparatuses that transmit csi-rss for measuring csi and a user terminal that communicates with the plurality of base station apparatuses, and, when a plurality of csi processes, which are combinations of smrs and imrs, are configured, in each of the base station apparatuses, a csi process for requesting csi with a nearest csi reference resource in a subframe of the subframe number n-4 or an earlier subframe is configured, and in the user terminal, the csi process configured in each of the base station apparatuses is determined, and, the csi feedback process is performed based on the determination.. ... Ntt Docomo Inc

09/17/15 / #20150264679

Mobile station and radio base station

In ca performed using multiple cells supporting pucch, which downlink cell feedback information is to be transmitted through which uplink cell pucch is determined. A mobile station ue according to the invention includes a management unit 21 configured to manage a downlink cell and an uplink cell in association with each other and a transmission unit 23 configured to transmit feedback information for a signal, which is transmitted through the downlink cell, through pucch for the uplink cell associated with the downlink cell.. ... Ntt Docomo Inc

09/17/15 / #20150263832

Radio communication method, radio communication system, radio base station and user terminal

A method and system for carrying out communication adequately in a hetnet even when the radio resource region for downlink control channels is expanded is disclosed. A radio communication method in a radio communication system having a macro base station that forms a macro cell and a small base station that forms a small cell such that at least part of the small cell overlaps the macro cell is provided, and the small base station performs the steps of generating specific control information of user terminals, scrambling the specific control information by using user-specific scrambling sequences, and transmitting the specific control information to user terminals in the small cell by using an enhanced downlink control channel that is frequency-division-multiplexed with a downlink shared data channel.. ... Ntt Docomo Inc

09/17/15 / #20150262588

Audio coding device, audio coding method, audio coding program, audio decoding device, audio decoding method, and audio decoding program

An audio signal transmission device for encoding an audio signal includes an audio encoding unit that encodes an audio signal and a side information encoding unit that calculates and encodes side information from a look-ahead signal. An audio signal receiving device for decoding an audio code and outputting an audio signal includes: an audio code buffer that detects packet loss based on a received state of an audio packet, an audio parameter decoding unit that decodes an audio code when an audio packet is correctly received, a side information decoding unit that decodes a side information code when an audio packet is correctly received, a side information accumulation unit that accumulates side information obtained by decoding a side information code, an audio parameter missing processing unit that outputs an audio parameter upon detection of audio packet loss, and an audio synthesis unit that synthesizes decoded audio from the audio parameter.. ... Ntt Docomo Inc

09/10/15 / #20150257093

Mobile station and radio base station

A drx state of a mobile station ue is flexibly changed. In a mobile station ue according to the invention, in a case where a reception state of the mobile station ue is managed as a continuous reception state, and even in a case where the reception state of the mobile station ue is configured to be capable of transitioning to a short-drx state, a control unit 22 transitions the reception state of the mobile station ue to a long-drx state without transitioning the reception state to the short-drx state when an instruction to transition the reception state of the mobile station ue to the long-drx state is made via mac-ce by a radio base station.. ... Ntt Docomo Inc

09/10/15 / #20150257082

Mobile communication system, radio base station, mobility management node, and mobile station

An objective is to avoid a situation where a mobile station ue, which is not a csg member, uses a csg cell as an scell in csg control. A radio base station enb according to the invention includes a management unit 12 configured to manage at least one of a pcell list and an scell list, a reception unit 11 configured to acquire at least one of pcell member information and scell member information from a mobile station ue in a cell #10, and a control unit 13 configured to determine whether or not the mobile station ue can connect to the cell #10 as a pcell and determine whether or not the mobile station ue can configure the cell #10 as an scell by referring to the management unit 12 based on at least one of the pcell member information and the scell member information.. ... Ntt Docomo Inc

09/10/15 / #20150257048

Mobile communication method

A mobile communication method according to the invention includes the steps of: starting, by a radio base station enb, addition processing of adding a radio base station phnb to a transmission path for user data of a mobile station ue when the mobile station ue is in communication in a macro cell under the radio base station enb and the radio base station phnb managing a small cell having a coverage including a location where the mobile station ue exists is selected as the transmission path for the user data of the mobile station ue; notifying, by the radio base station enb, the radio base station phnb of management information of a sequence number in the addition processing; and resetting information on a header compression and security setting information by the radio base station phnb in the addition processing.. . ... Ntt Docomo Inc

09/10/15 / #20150256307

Radio communication system, radio communication method, user terminal and radio base station

To perform rate matching appropriately even when downlink signals are transmitted from a plurality of transmission points to a user terminal, a radio communication system having a user terminal capable of coordinate multi-point transmission and reception with several radio base stations is provided. A radio base station transmits downlink control information including bit information defining a predetermined rate matching pattern to the user terminal. ... Ntt Docomo Inc

09/10/15 / #20150253925

Display control device, display control method and program

Support information or related information regarding an input operation target is explicitly displayed when the proximity is detected before a user selects and fixes an input operation target, so as to support a user's accurate input operation, thereby improving operability. A portable terminal includes a proximity detection unit that detects a proximity of the finger to a screen, and a key image combining unit that displays enlarged images of an item displayed at a proximity correspondence position on the screen and all items adjacent to the item at the proximity correspondence position which is a position on the screen corresponding to proximity coordinates of the finger of which the proximity is detected, or in a vicinity of the proximity correspondence position, as related information or support information regarding the item displayed at the proximity correspondence position on the screen.. ... Ntt Docomo Inc

09/03/15 / #20150250004

Radio base station and mobile station

An objective is to enable communications properly using an scell even in a case where a radio base station which transmits “activate command” and a radio base station which manages an scell are different when “inter-site ca” is performed. A radio base station enb #1 according to the invention includes a transmission unit 12 configured to transmit an “activate command” which is a command to activate a cell # b to a mobile station ue and thereafter notify a radio base station enb #10 that the cell # b is activated.. ... Ntt Docomo Inc

09/03/15 / #20150249944

Mobile communication method

A mobile communication method includes: a step of transmitting, by a radio base station enb#3, “forwarding request” on downlink user data addressed to a mobile station ue to a radio base station enb#1; a step of switching, in response to the “forwarding request”, by the radio base station enb#1, a forwarding destination of the downlink user data addressed to the mobile station ue from the radio base station enb#2 to the radio base station enb#3; and a step of transmitting, by the radio base station enb#3, the downlink user data addressed to the mobile station ue to the mobile station ue.. . ... Ntt Docomo Inc

09/03/15 / #20150249943

Mobile communication method

A mobile communication method includes the steps of: in a case where the mobile station ue is in communication in a macro cell and the radio base station phnb is selected as a transmission path of user data of the mobile station ue, causing the radio base station enb to start addition processing of adding the radio base station phnb to the transmission path of the user data of the mobile station ue, causing the radio base station phnb to reset header-compression related information, security setting information, and sequence-number management information in the addition processing, and causing the radio base station enb to forward downlink user data destined for the mobile station ue, without forwarding uplink user data of the mobile station ue, to the radio base station phnb in the addition processing.. . ... Ntt Docomo Inc

09/03/15 / #20150249587

Method and apparatus for topology and path verification in networks

A method and apparatus are disclosed herein for topology and/or path verification in networks. In one embodiment, a method is disclosed for use with a pre-determined subset of network flows for a communication network, where the network comprises a control plane, a forwarding plane, and one or more controllers. ... Ntt Docomo Inc

08/27/15 / #20150245386

Mobile communication method and mobile station

A radio base station phnb managing a phantom cell is enabled to uniquely indentify a mobile station ue in communication in the phantom cell. A mobile communication method according to the present invention includes starting, by the radio base station phnb#10, a “non-contention based ra procedure” or a “contention based ra procedure” with a mobile station ue#1 in communication in a cell #10 under control of the radio base station phnb#10; and notifying, by the mobile station ue#1, the radio base station phnb#10 of a c-rntimacro which is allocated in a cell #1 other than the cell #10.. ... Ntt Docomo Inc

08/27/15 / #20150245320

Uplink resource scheduling method, wireless base station and mobile station

The embodiments of the present invention provide an uplink resource scheduling method, a wireless base station and a mobile station. The method comprises: generating group dedicated signaling respectively for mobile station groups managed by the wireless base station, wherein group dedicated signaling of each mobile station group indicates uplink resources allocated to the mobile station group; multiplexing the generated group dedicated signaling into different positions of a first channel and transmitting the multiplexed group dedicated signaling; generating mobile station dedicated signaling for each mobile station in each of the mobile station groups, wherein the mobile station dedicated signaling at least includes group information indicating the mobile station group to which the mobile station belongs; and multiplexing the generated mobile station dedicated signaling into a second channel and transmitting the multiplexed mobile station dedicated signaling.. ... Ntt Docomo Inc

08/27/15 / #20150245297

Portable terminal, transition method, and program

A portable terminal includes a first detection unit that detects a change in a position of the portable terminal; a second detection unit that detects a change in a physical quantity representing a surrounding condition of the portable terminal; and a transition unit that causes the portable terminal to transition from a first state to a second state in which electricity consumption is smaller than that of the first state, when a relation between a direction of the change detected by the first detection unit and a trend in the change in the physical quantity detected by the second detection unit satisfies a predetermined condition.. . ... Ntt Docomo Inc

08/27/15 / #20150245257

Radio base station

A signal load onto a mobility management node mme is reduced by defining a case which does not require “path switch” when x2 handover processing is performed for a mobile station ue. A radio base station enb#1 according to the present invention includes a handover processing unit 14 configured not to perform “path switch” when performing x2 handover processing for a mobile station to a radio base station enb#2 having the same “virtual enb id#1” as the radio base station enb#1.. ... Ntt Docomo Inc

08/27/15 / #20150245254

Mobile communication method and mobile station

In a mobile communication method of the invention, when communication of a mobile station (ue) in a “rrc_connected state” in a cell (#1) under the control of a radio base station (enb#1) is performed through an eps bearer formed of a u-plane bearer between the mobile station (ue) and the radio base station (enb#1) and an s1-u bearer between the radio base station (enb#1) and a gateway device (s-gw), and if the radio base station (enb#1) detects that a cell (#10) is located around the mobile station (ue), the radio base station (enb#1) sends the mobile station (ue) “rrc connection reconfiguration” which contains information correlating identification information on the eps bearer with identification information on the cell (#10).. . ... Ntt Docomo Inc

08/27/15 / #20150245228

Mobile communication system, radio base station, and mobile station

An appropriate action is taken when an abnormality in a layer 2 is detected, even in an “inter-site ca” operation in which communication for a c-plane signal is performed in a cell #1 under a radio base station enb#1 via a srb, and communication for a u-plane signal is performed in a cell #11/#12 under a radio base station enb#11/#12 via a drb. In a mobile communication system according to the present invention, the radio base station enb#11/#12 is configured to provide the radio base station enb#1 with predetermined notification, when an abnormality is detected in a layer 2 of a downlink to a mobile station ue.. ... Ntt Docomo Inc

08/20/15 / #20150237582

Mobile station, radio base station, and communication control method

A mobile station ue in accordance with an embodiment of the present invention is a mobile station for communicating with a radio base station using two or more carriers. The two or more carriers include a carrier in a non-discontinuous reception state and a carrier in a discontinuous reception state. ... Ntt Docomo Inc

08/20/15 / #20150237489

Radio access network apparatus

The present invention enables broadcasting of additional information in addition to emergency information without greatly improving a data management and processing capability in an information broadcasting node cbe or a core network apparatus. A radio access network apparatus according to the present invention includes a management unit (11) configured to manage a cell, a type of emergency information, and additional information in association with one another, and a transmission unit (13) configured to broadcast emergency information and additional information in a cell under control thereof when receiving an instruction to broadcast the emergency information, the additional information being associated with the cell and the type of the emergency information.. ... Ntt Docomo Inc

08/20/15 / #20150236766

Method and apparatus for efficient channel state information dissemination for mu-mimo transmission schemes based on outdated channel state information

A method and apparatus is disclosed herein for channel state information dissemination for multi-user (mu) multiple-input multiple-output (mimo) (mu-mimo) transmission schemes based on outdated channel state information. In one embodiment, a method for disseminating channel state information (csi) coefficients from a first user terminal, where each csi coefficient corresponds to the csi previously observed by the first user terminal during transmission resource blocks used by a base station to communicate information to a second set comprising at least one user terminal and not including the first user terminal, comprises: broadcasting by the base station the channel state information (csi) of each user terminal in the second set of user terminals, on the subset of transmission resources used by the base station to communicate information to each user terminal in the second set; receiving observations of these transmissions by the first user terminal; performing, at first user terminal, eavesdropper channel selection of a subset of csi coefficients between the base station and the eavesdropping first-user terminal for uplink csi feedback, the subset chosen out of the set of csi coefficients between base station and the first user-terminal on the transmission resources used by the base station to communicate information to each user terminal in the second set; scheduling the subset of the selected csi coefficients for uplink transmission; and transmitting the subset of the selected csi coefficients via the uplink transmission.. ... Ntt Docomo Inc

08/20/15 / #20150234926

User interface device, search method, and program

A user interface device includes: a detection unit that detects an inputting action to select a displayed object corresponding to a subject; and a generation unit that generates a query based on an inputting action detected by the detection unit, wherein the generation unit generates a query for a combination of a plurality of subjects upon detection of an inputting action to select a plurality of displayed objects corresponding to a plurality of subjects by a predetermined algorithm.. . ... Ntt Docomo Inc

08/20/15 / #20150234680

Task control device

A task control unit executes a task according to execution request information for the task, which task is registered using a function provided by task control unit. The task control unit separately controls a task (p-task) whose execution time is set by a programmer and a task (s-task) whose execution time is set by a system so that the tasks do not interfere with each other. ... Ntt Docomo Inc

08/13/15 / #20150230235

Mobile communication method, radio base station, and mobile station

Occurrence of a delay in transmission of uplink data in “inter-site ca” is avoided. A mobile communication method according to the present invention includes the steps of: causing a mobile station ue to transmit an sr to a radio base station enb#1 by using a pucch-sr; causing the radio base station enb#1 to notify the mobile station ue of a “ul grant”; causing the mobile station ue to transmit a bsr in a bearer #b/lch#b to the radio base station enb#1 by using a pusch designated in the “ul grant”; causing the radio base station enb#1 to notify a radio base station enb#10 of an amount of buffered data in the bearer #b/lch#b; and causing the radio base station enb#10 to assign the mobile station ue a resource for transmission of uplink data upon receipt of the amount of buffered data.. ... Ntt Docomo Inc

08/13/15 / #20150230225

Mobile communication system, radio base station, and mobile station

A bearer configuration in a case of using “inter-site ca” is properly defined. In a mobile communication system according to the present invention, an anchor radio base station enb#1 which is one of radio base stations enb#1 to enb#3 is configured to map one eps bearer #b established between a mobile station ue and a gateway device p-gw to radio bearers #3 to #5 established between the mobile station ue and the multiple radio base stations enb#1 to enb#3.. ... Ntt Docomo Inc

08/13/15 / #20150230212

Radio base station and mobile station

Even when a same c-rnti is allocated to multiple mobile stations ue in a phantom cell, a collision between the mobile stations ue to which the same c-rnti is allocated is avoided. A radio base station phnb#10 according to the present invention includes an allocation unit 11 configured to allocate a same c-rntiph to multiple mobile stations ue#1 to ue#3 in a cell #10 and a transmission unit 13 configured to notify the multiple mobile stations ue#1 to ue#3 of different locations of radio resources. ... Ntt Docomo Inc

08/13/15 / #20150230133

Mobile communication system, radio base station, and mobile station

A system for enabling broadcasting of broadcast information to a mobile station ue camping on a phantom cell is disclosed. A mobile communication system transmits reference instruction information to a mobile station ue camping on or communicating in any of phantom cells #1 to #13, the reference instruction information instructing the mobile station ue to refer to broadcast information in a macro cell #a which the mobile station ue does not camp on or is not communicating in.. ... Ntt Docomo Inc

08/13/15 / #20150230092

Mobile station, networking apparatus, and mobile communication method

A mobile station, a networking apparatus, and a mobile communication method with which access restriction according to ssac can be achieved with greater reliability even when the mobile station is in an rrc connected state. A ue 100 acquires restriction information indicating a content of service specific access control, and cancels transmission of a call-origination request based on the acquired restriction information if the call-origination request is generated when the ue 100 is in an rrc connected state in which connection to an access network is established on a radio resource control layer, the transmission being cancelled in the rrc connected state.. ... Ntt Docomo Inc

08/13/15 / #20150229758

Mobile station and mobile communication method

A mobile station and a mobile communication method are provided, which are, if being able to output a local ringing tone and a nw-provided ringing tone, capable of continuing a ringing tone outputted before a transition from lte to 3g by asrvcc even after the transition is made. A ue (100a) executes continuation processing (asrvcc) of a 3g voice communication service if the mobile station makes a transition of the connection destination from lte to 3g during an alert period when the other party in the voice communication service is being alerted. ... Ntt Docomo Inc

08/13/15 / #20150229454

Radio communication method, radio base station, user terminal and radio communication system

A system and method for allocating adequate uplink radio resources for delivery acknowledgment information of a downlink shared data channel when downlink control information is transmitted using an enhanced downlink control channel is disclosed. A radio base station configures a plurality of enhanced pdcch sets, which are each formed to include a plurality of enhanced control channel elements (ecces) allocated to the enhanced downlink control channel, for a user terminal, the radio base station transmits, to the user terminal, the downlink control information, to which resource identifiers (aris) are added, the resource identifiers being different between the plurality of enhanced pdcch sets, and the user terminal determines radio resources for an uplink control channel that are used to transmit delivery acknowledgment information of the downlink shared data channel, based on offset values that are associated with the resource identifiers (aris).. ... Ntt Docomo Inc

08/13/15 / #20150229452

Radio communication system, base station apparatus, mobile terminal apparatus, and interference measurement method

The present invention is designed to increase the number of csi-rss for interference measurements and improve the accuracy of interference measurements. The first reference signal is allocated to a reference signal resource defined for transmission of the first reference signal, and also a second reference signal for interference measurement is allocated, the allocation patterns of the first reference signal and the second reference signal are implicitly reported to the first mobile terminal to apparatus that supports both the first reference signal and the second reference signal, and, in the first mobile terminal apparatus, interference is measured using both the first reference signal and the second reference signal or using the second reference signal alone, based on the implicitly-reported allocation patterns.. ... Ntt Docomo Inc

08/13/15 / #20150229413

Interference reduction method, radio base station, user terminal and radio communication system

A method to reduce interference between a macro cell and a small cell in a radio communication system in which the macro cell and the small cell are allocated to overlap at least in part is disclosed. The interference reduction method includes the steps in which a small base station transmits macro cell identification information that identifies the macro cell, to a user terminal in a small cell, allocates a downlink control signal for the user terminal to a radio resource unit having a different index number from that of a radio resource unit where a downlink control signal to be transmitted from the macro base station is allocated, and interleaves the downlink control signal for the user terminal using an interleaving pattern that is generated based on the macro cell identification information and that is the same as an interleaving pattern used in macro base station.. ... Ntt Docomo Inc

08/13/15 / #20150229029

Reflectarray

A reflectarray having multiple elements arranged in an array, each element having a h-shaped patch provided in separation from a ground plate, the h-shaped patch formed by four outer vertices defined by two rectangular outer patches and four inner vertices defined by an inner patch. A length of the inner patch with respect to a first direction is determined to change the reflection phase of an electric field incoming in parallel to the first direction while keeping positions of the four outer vertices and sizes of the outer patches constant. ... Ntt Docomo Inc

08/06/15 / #20150223219

Communication system, macro base station apparatus, mobile terminal apparatus and communication method

The present invention is designed to provide highly efficient small cell radio access. Local stations (20) transmit small cell-specific discovery signals, and a mobile terminal apparatus (10) receives measurement configuration, in which a ds reception control signal is contained, from a macro station (30). ... Ntt Docomo Inc

08/06/15 / #20150223130

Mobile station and mobile communication method

A mobile station and a mobile communication method are provided, which are capable of continuing output of an announcement sound even if a transition is made from lte to 3g by srvcc when the announcement sound is being received from a network side in response to a call request to a call-terminating terminal. A ue 100a executes continuation processing (srvcc) of a 3g voice communication service if the mobile station makes a transition of a connection destination from lte to 3g. ... Ntt Docomo Inc

08/06/15 / #20150222454

Mobile station device, wireless communication system, channel estimation method, and program for controlling same

Provided, are a mobile station device and a channel estimation method for estimating a beam forming pattern applied in transmission beam forming processing through a forward link, thereby using a channel estimation technology having a better performance, and a control program therefor. The provided mobile station device, the channel estimation method, and the control program involve performing channel estimation processing in wireless frequency transmission through the forward link of the transmission beam forming.. ... Ntt Docomo Inc

08/06/15 / #20150222340

Radio communication method, user terminal, radio base station and radio communication system

The present invention is designed so that it is possible to feed back channel state information (csi) that is suitable for downlink communication in which 3d beams are used. The radio communication method of the present invention is a radio communication method to allow a radio base station to carry out downlink communication with a user terminal by using a 3d beam that is formed with a horizontal beam having directivity in a horizontal plane and a vertical beam having directivity in a vertical plane, and has the steps in which the radio base station transmits a plurality of measurement reference signals that are pre-coded using different precoding weights between a plurality of vertical beams, and the user terminal transmits channel state information that is generated based on the plurality of measurement reference signals, to the radio base station.. ... Ntt Docomo Inc

08/06/15 / #20150222336

Method and apparatus for internal relative transceiver calibration

A method and apparatus is disclosed herein for internal relative transceiver calibration. In one embodiment, the method comprises generating a plurality of processed observations corresponding to pilots transmitted by transceiver units in the entity and observations of the pilots by transceiver units in the entity, each processed observation being indicative of a combined response of a pilot transmitted by transmitter hardware of one transceiver unit at the entity and an observation of the pilot by receiver hardware of another transceiver unit at the entity; grouping the plurality of processed observations into one or more observation pairs, where each observation pair of the one or more observation pairs comprises: a first observation indicative of a combined response between transmitter hardware of a first transceiver unit and receiver hardware of a second transceiver unit in the entity, and a second observation indicative of a combined response between transmitter hardware of the second transceiver unit and receiver hardware of the first transceiver unit in the entity; and calculating, based on at least one of observation pairs, relative calibration values, where each relative calibration value is associated with a transceiver of each transceiver unit and is relative with respect to a transceiver of a reference unit at the entity.. ... Ntt Docomo Inc

07/30/15 / #20150215988

Mobile station

To avoid a situation where a mac layer function and a physical layer function have state inconsistencies, i.e., the mac layer function recognizes that a certain uplink signal has been transmitted while the physical layer function has not actually transmitted the uplink signal. In a mobile station ue according to the present invention, a layer 1 function includes a transmission unit 13 configured to transmit an uplink signal to a radio base station enb. ... Ntt Docomo Inc

07/30/15 / #20150215797

Information processing apparatus and information processing method

Information acquisition unit acquires terminal identification information for identifying a communication terminal capable of receiving a signal from a communication unit. Status acquisition unit acquires a terminal status for determining whether the communication terminal identified by the terminal identification information acquired by information acquisition unit is staying in a predetermined area within a range in which a signal from the communication unit can be received. ... Ntt Docomo Inc

07/30/15 / #20150215756

Mobile communication system, call control device, mobile station, and mobile communication method

A ue transmits an invite message (call origination request) for an emergency call to an e-cscf. The e-cscf receives the invite message through an enb and determines a psap of a connection target of the emergency call based on the received invite message. ... Ntt Docomo Inc

07/30/15 / #20150215022

User terminal, radio communication system, radio communication method and radio base station

To make it possible to feed back channel state information adequately even when a plurality of pieces of channel state information are generated in a user terminal, a user terminal that is configured to be able to conduct coordinated multi-point transmission/reception with a plurality of radio base stations has a generating section that generates a plurality of kinds of channel state information using channel state measurement reference signals transmitted from each radio base station, a selection section that selects predetermined channel state information to feed back, from the plurality of kinds of channel state information, and a transmission section that feeds back the predetermined channel state information to the radio base station via an uplink control channel, and the selection section selects the predetermined channel state information based at least on the priorities assigned to the resource indices of channel state measurement reference signals corresponding to each channel state information.. . ... Ntt Docomo Inc

07/30/15 / #20150213095

User interface device, search method, and program

A user interface device includes: a first display controller that displays a first object corresponding to a first subject and a second object corresponding to a second subject; a detection unit that detects an input instructing a change of an arrangement of the first and second objects; and a second display controller that displays a result of a search relating to the first and second subjects in response to an instruction detected by the detection unit, the result depending on the change of the arrangement.. . ... Ntt Docomo Inc

07/23/15 / #20150208403

User terminal, radio communication method and radio communication system

A user terminal carries out the steps of receiving downlink control information for a first cell and a second cell allocated to the pdcch of the first cell, generating retransmission control signals for each downlink data signal in predetermined pucch formats, allocating the generated retransmission control signals to a pucch resource of the first cell, and sending feedback, and, when the ratio of dl subframes is higher in the second cell than in the first cell, applies pucch format 3 to a retransmission control signal for a downlink data signal of the second cell demodulated by using downlink control information in which the cce number is equal to or lower than a predetermined value, and applies pucch format 1b to a retransmission control signal for a downlink data signal of the second cell demodulated by using downlink control information in which the cce number is greater than the predetermined value.. . ... Ntt Docomo Inc

07/23/15 / #20150208393

Mobile communication method and mobile station

A mobile communication method includes the steps of transmitting a first control signal including an identifier different from a c-rnti to the mobile station ue#a through a pdcch by a radio base station phnb#10 managing a cell #10 formed by linking multiple small cells, transmitting a second control signal including an identifier to the mobile station ue through a pdcch by a radio base station enb#1 managing a cell #1 having a coverage area overlapping with a coverage area of the cell #10, and regarding the first control signal as valid by the mobile station ue#a, when it determines that the identifier included in the first control signal and the identifier included in the second control signal match each other.. . ... Ntt Docomo Inc

07/23/15 / #20150207549

Base station apparatus, user terminal, communication system and communication control method

A base station apparatus, a user terminal, a communication system and a communication control method that can support the diversification of communication is disclosed. In a base station apparatus, downlink measurement object signals are pre-coded in a precoding multiplication section using precoding weights for downlink measurement object signals, and transmitted to a user terminal, and, in the user terminal, the downlink measurement object signals are demodulated using the precoding weights, and measurement processes are performed based on the demodulated downlink measurement object signals.. ... Ntt Docomo Inc

07/16/15 / #20150201213

Video prediction encoding device, video prediction encoding method, video prediction decoding device and video prediction decoding method

A decoding device includes a decoder that decodes information of a direction of intra-picture prediction of a target block and compression data of a residual signal, a prediction signal generator that generates an intra-picture prediction signal using the information of the direction and an previously reconstructed reference sample of an adjacent block, a residual signal restorator that restores a reconstructed residual signal of the target block, and a block storage that restores and stores a pixel signal of the target block. The prediction signal generator derives reference samples from a previously reconstructed block neighbouring the target block stored, selects two or more key reference samples, performs an interpolation process between the key reference samples for generating interpolated reference samples, and generates the intra-picture prediction signal by extrapolating the interpolated reference samples based on the direction of the intra-picture prediction.. ... Ntt Docomo Inc

07/16/15 / #20150199382

Related content retrieval device and related content retrieval method

A related content retrieval device that can retrieve a wide variety of related contents. The related content retrieval device includes: an input unit for implementing input of a content; a metadata acquisition unit for acquiring metadata of the content input by the input unit; a posted text acquisition unit for acquiring a posted text related to the metadata acquired by the metadata acquisition unit, from a posting server accumulating user posted texts; a related content acquisition unit for acquiring a related content related to the posted text acquired by the posted text acquisition unit, from a retrieval server capable of retrieving a content on a network device; and an output unit for outputting the related content acquired by the related content acquisition unit.. ... Ntt Docomo Inc

07/09/15 / #20150195830

Radio communication method, radio communication system, radio base station and user terminal

A radio communication method of a user terminal and a radio base station adopting carrier aggregation to adequately feed back channel state information of a plurality of cells from a user terminal to a radio base station, is disclosed. The user terminal generates channel state information of each cell in uplink control channel format 2 or in format 3 based on the number of cells to use in carrier aggregation, feeds back the generated channel state information via resources that the radio base station sets in an uplink control channel of a primary cell at a predetermined time in accordance with an uplink control channel format, and the radio base station secures the resources to set in the uplink control channel when the channel state information of the primary cell is generated in uplink control channel format 2, regardless of the number of cells to use in carrier aggregation.. ... Ntt Docomo Inc

07/09/15 / #20150195829

Mobile station

To prevent the occurrence of interference in the uplink when carrying out “time-switched ul ca”. A mobile station ue according to the present invention includes a ul transmission processing unit 11 configured to transmit uplink information at tti# n+4 corresponding to tti#n, using a cc allocated over a pdcch to the mobile station ue at tti# n by the radio base station enb. ... Ntt Docomo Inc

07/09/15 / #20150195751

Base station and control method in mobile communications system

A base station includes a voice coding method identification unit configured to identify whether a csfb method in which a voice signal of user equipment is provided in a 3g cell or a volte method in which a voice signal of the user equipment is provided in an lte cell is used; a mode manager configured to control an operation mode of the user equipment, so that the user equipment that provides the voice signal by the volte method tends to stay in the active mode compared to the user equipment that provides the voice signal by the csfb method; and a transmitter configured to transmit a notification signal that indicates that communications of the user equipment in the idle mode are to be restricted.. . ... Ntt Docomo Inc

07/09/15 / #20150195748

Mobile communication method

Even when handover processing to a radio base station t-enb not supporting “extended pdcp-sn” is performed on a mobile station ue communicating with a radio base station s-enb supporting “extended pdcp-sn,” the communications are continued. A mobile communication method according to the invention includes the steps of: causing a radio base station s-enb to determine to perform handover processing of a mobile station ue to a radio base station t-enb not supporting “extended pdcp-sn” in a state where a first bearer using “extended pdcp-sn” is established with the mobile station ue, and causing the radio base station s-enb to create “rrc connection reconfiguration” which instructs deletion of the first bearer and addition of a second bearer using “conventional pdcp-sn” and to transmit “rrc connection reconfiguration” to the mobile station ue.. ... Ntt Docomo Inc

07/09/15 / #20150195715

Radio base station, user terminal, radio communication system and interference estimation method

The present invention is designed to make it possible to adequately estimate the interference level between uplink signals and downlink signals when different dl/ul configurations are applied between transmitting/receiving points. The interference estimation method of the present invention is an interference estimation method in a radio communication system in which an uplink signal from a user terminal (#1) to a radio base station (#1) and a downlink signal from a radio base station (#2) that neighbors the radio base station (#1) to user terminal (#2) are transmitted using a time division duplexing (tdd) scheme. ... Ntt Docomo Inc

07/09/15 / #20150195019

Base station apparatus, user terminal, communication system and communication control method

A base station apparatus, a user terminal, a communication system and a communication control method that can support the diversification of communication is provided. In a base station apparatus, downlink measurement object signals are pre-coded using precoding weights that are specific to a user terminal, and transmitted to the user terminal, and, in the user terminal, the downlink measurement object signals are demodulated using the precoding weights that are specific to the user terminal, and measurement processes are performed based on the demodulated downlink measurement object signals.. ... Ntt Docomo Inc

07/09/15 / #20150193912

Device and program for controlling direction of displayed image

Mobile terminal device has a display rotation function for rotating a direction of an image on a screen so that the downward direction of the image fits the vertical downward direction in the real world. While no touch of a finger of a user is detected, the display rotation function remains on, and when a touch of the user is detected, the display rotation function is turned off. ... Ntt Docomo Inc

07/09/15 / #20150193112

User interface device, user interface method, and program

Display device is able to detect a proximity operation in which finger f is brought close to display surface without making contact and a contact operation in which the finger makes contact with display surface. Display device specifies a position of a finger of a user while in a stationary state above display screen as reference position bp1 or bp2 based on the proximate operation of the user. ... Ntt Docomo Inc

07/02/15 / #20150189641

Mobile station

To execute appropriate process when “time-switched ul ca” is executed and even when transmission of uplink information using a plurality of ccs has been scheduled in a same tti. A radio base station enb according to the present invention includes a ul transmission processing unit 11 configured to transmit uplink information at tti#n+4 using a cc allocated over a pdcch to the mobile station ue at tti#n. ... Ntt Docomo Inc

07/02/15 / #20150188684

Base station apparatus, radio communication terminal, radio communication system and radio communication method

The present invention is designed to provide a base station apparatus, a radio communication terminal, a radio communication system and a radio communication method which can reduce the cost required for mtc terminals when an lte system is employed in the network domain of a machine communication system. A base station apparatus communicates with a first communication terminal in a first frequency band and also communicates with a second communication terminal in a second frequency band of a narrower bandwidth than the first frequency band, and includes: an allocation control section that allocates an extended downlink control channel which is frequency-division-multiplexed with a downlink shared data channel, in a predetermined frequency region in the second frequency band; and a mapping section that maps a common control signal that is common between the second communication terminals at least, in a common search space of the extended downlink control channel.. ... Ntt Docomo Inc

07/02/15 / #20150185833

Display device, display method, and program

Information-processing device detects a visual line of a user, and displays cursor at the position viewed by the user. If the user touches a display area of an image using his/her finger while cursor is close to an edge of the display area, the position touched by the finger is recorded. ... Ntt Docomo Inc

06/25/15 / #20150181625

Mobile communication method, radio base station, and mobile station

Time for establishing a u-plane can be reduced and wasting a physical downlink control channel (pdcch) is avoided in “rrc re-establishment procedure.” a mobile communication method of the invention includes transmitting, by a mobile station ue, “rrc connection re-establishment request” to a radio base station enb in response to “ra response, ” and transmitting, by the radio base station enb, “rrc connection re-establishment”, which instructs to establish drb together with srb1/srb2, to the mobile station ue in response to the “rrc connection re-establishment request.”. . ... Ntt Docomo Inc

06/25/15 / #20150181591

Mobile terminal apparatus and method of transmitting an uplink control information signal

To suppress and minimize changes from the method of transmitting an uplink control information in the lte system, while supporting increases in the system band and increases in the transmission layer when there is a pusch signal transmitted in the same subframe, provided is a configuration for generating a uci signal for a base station apparatus (20) in a mobile communication system having a system band comprised of a plurality of component carriers, multiplexing the uci signal into a pusch signal transmitted in the same subframe as the uci signal in a user specific component carrier used in transmission of a pucch signal, and transmitting the pusch signal into which the uci signal is multiplexed to the base station apparatus (20).. . ... Ntt Docomo Inc

06/25/15 / #20150181573

Radio communication method, radio communication system and radio base station

To appropriately allocate radio resources to downlink control information, in the enhanced downlink control channel, a radio communication method in which a radio base station transmits downlink control information to each user terminal via an enhanced downlink control channel frequency division multiplexed with a downlink shared data channel is provided. The method includes generating the downlink control information in ecce unit, the ecce being made up with a plurality of eregs, and mapping the downlink control information in ereg unit to a plurality of resource regions for the enhanced downlink control channel. ... Ntt Docomo Inc

06/25/15 / #20150181508

Mobile station, small radio base station, and communication control method

A “macro-assisted cell” adaptable to multiple operation modes is realized. In a mobile station (ue) of the invention, a control unit (22) is configured to start communication in a small cell on the basis of mib/sib of the small cell when a sequence in a “discovery signal” is determined as a sequence for a “stand-alone cell.” the control unit (22) is configured to start the communication in the small cell on the basis of a control signal from a macro cell when the sequence in the “discovery signal” is determined as a sequence for a “macro-assisted cell.”. ... Ntt Docomo Inc

06/25/15 / #20150181451

Radio base station

In “immediate mdt,” location information on a mobile station ue is acquired along with “(mdt) measurementreport” for all “trigger types.” a setting unit 11 of a radio base station enb according to the present invention is configured to be able to set “measconfig” and “includelocinfo” to “rrcconnectionreconfiguration,” set “measobjectid,” “reportconfigid,” and “measid” to the “measconfig,” and indicate in the “includelocinfo” that location information on the mobile station ue is to be attached to “(mdt) measurementreport.”. . ... Ntt Docomo Inc

06/25/15 / #20150181403

Mobile communication system, network apparatus, mobile station, and mobile communication method

A ue (20a) includes an application control information holding unit (23) configured to hold application control information at least including identification information of an application (21) to be restricted or permitted to perform communications among the multiple applications (21); a restriction instruction reception unit (24) configured to receive, via a radio base station, a communication restriction instruction to control communications of the application (21) to be restricted or permitted to perform communications among the multiple applications (21); and a restriction instruction notification unit (25) configured to notify an upper layer, which is configured to implement communications with the application (21), of reception of the communication restriction instruction based on the communication restriction instruction received by the restriction instruction reception unit (24).. . ... Ntt Docomo Inc

06/25/15 / #20150181395

Information distribution apparatus, information distribution method and program

To assist communication by users, who are associated according to their location. Each of aps (access points) 3001 to 300m is installed at a certain place, and sends a radio signal including identification data. ... Ntt Docomo Inc

06/25/15 / #20150181034

Communication terminal, control method, and program

Speech data acquiring unit acquires speech data representing a user's speech. Text data acquiring unit acquires text data generated as a result of a speech recognition processing based on the speech data. ... Ntt Docomo Inc

06/25/15 / #20150180706

Mobile communication method and mobile station

In a state where a mobile station ue is communicating with a radio base station s-enb supporting “extended pdcp-sn,” the mobile terminal continues communications even if it performs a reconnection procedure with a radio base station t-enb not supporting “extended pdcp-sn.” a mobile communication method according to the invention includes the steps of, when detecting rlf in the bearer in the above-described state, the mobile station ue resetting setting of “extended pdcp-sn” and establishing a bearer using “conventional pdcp-sn” by performing a reconnection procedure with a radio base station t-enb not supporting “extended pdcp-sn.”. . ... Ntt Docomo Inc

06/25/15 / #20150180632

Communication system, base station apparatus, terminal apparatus, and communication method

The present invention is designed to provide a communication system, a base station apparatus, a terminal apparatus and a communication method that can support the diversification of communication. In the communication system of the present invention, in which a terminal apparatus receives a downlink data signal transmitted from a base station apparatus (enb) in a radio resource region for a downlink data signal, the base station apparatus transmits a terminal-specific reference signal in the radio resource region for the downlink data signal to the terminal apparatus (ue), and the terminal apparatus measures channel quality information based on the terminal-specific reference signal and transmits the measured channel quality information to the base station apparatus.. ... Ntt Docomo Inc

06/25/15 / #20150178323

User interface device, search method, and program

Setting of a search condition is facilitated. A communication terminal initially displays a plurality of search panels including a search panel p1, which is an image corresponding to a search target in a certain category. ... Ntt Docomo Inc

06/18/15 / #20150173104

Radio base station and mobile station

To improve probability of successfully performing transmission processing by a priority terminal and transmission processing of an emergency call even during congestion. A radio base station enb according to the present invention includes a ra procedure execution unit 11 configured to execute a ra procedure with a mobile station ue when the mobile station ue returns from a drx state to a non-drx state. ... Ntt Docomo Inc

06/18/15 / #20150173051

Communication system, macro base station apparatus, mobile terminal apparatus and communication method

The present invention is designed to provide highly efficient small cell radio access. The communication system of the present invention has a macro station (30) that forms a macro cell, a plurality of local stations (20) that are connected with the macro station (30) via communication links and that form small cells in the macro cell, and a mobile station (10) that can communicate with a macro station (30) using a radio communication scheme for the macro cell, and that can communicate with each local station (20) using a radio communication scheme for the small cells, and the macro station (30) transmits, to the mobile station (10) or to the local stations (20), a first control signal that can indicate that a second measurement signal, which is different from a first measurement signal that is used between the macro station (30) and the mobile station (10), is transmitted.. ... Ntt Docomo Inc

06/18/15 / #20150172963

Radio communication system and base station

A radio communication system has a user equipment, a first base station, a second base station, and a gateway device. The first base station is capable of executing radio resource control of the user equipment, whereas the second base station does not execute radio resource control of the user equipment. ... Ntt Docomo Inc

06/18/15 / #20150172940

Communication system, base station apparatus, mobile terminal apparatus and communication method

The present invention is designed to provide highly efficient small cell radio access. In a communication system to include a macro station (30), a local station (20), and a mobile terminal apparatus (10), the local station (20) generates measurement signals that are used in measurements in the mobile terminal apparatus (10) based on user an identifier or a user group identifier, and transmits this signal to the mobile terminal apparatus (10). ... Ntt Docomo Inc

06/18/15 / #20150172867

Information processing device, information providing method, and program

A mobile terminal guides a user to a destination by a navigation application and outputs destination information indicative of a destination upon arrival at the destination to information providing application and executes the information providing application. The mobile terminal on which the information providing application is running, determines whether the mobile terminal is staying at the destination by a motion sensor and starts counting a staying time. ... Ntt Docomo Inc

06/18/15 / #20150172034

Communication system, mobile terminal apparatus, local area base station apparatus and communication method

A system for supporting smooth mobility of a mobile terminal apparatus between a plurality of local areas that are arranged in a wide area is disclosed. The system includes a wide area base station apparatus that covers a wide area, a local area base station apparatus that covers a local area arranged in the wide area, and a mobile terminal apparatus that can communicate with the wide area base station apparatus and the local area base station apparatus, and is configured to scramble a data signal and a reference signal by a scrambling sequence that is common between a plurality of local areas in communication between the local area base station apparatus and the mobile terminal apparatus.. ... Ntt Docomo Inc

06/11/15 / #20150163727

Mobile station

To transmit a “cell update message” in a radio access network not supporting “additional dynamic transport format information for ccch,” a mobile station ue according to the present invention includes a transmitting unit 13 configured to transmit a “cell update message” to a radio access network in a “cell update procedure,” and the transmitting unit 13 includes a predetermined information element in the “cell update message” only when the radio access network supports the “additional dynamic transport format information for ccch.”. . ... Ntt Docomo Inc

06/04/15 / #20150156802

Radio communication system

The radio communication system has a user equipment, a first base station, a second base station, a serving gateway, and a switching station. The first base station has a control-plane path set to the switching station. ... Ntt Docomo Inc

06/04/15 / #20150156799

Mobile communication method and radio base station

A mobile communication method according to the present invention includes executing an ra procedure between a mobile station (ue) and a radio base station (enb) when the mobile station (ue) in a drx state makes a return to a non-drx state in order to perform call origination processing. The method comprises: a step a of causing the radio base station (enb) in the ra procedure to transmit “call identification request” to the mobile terminal (ue); a step b of causing the mobile terminal (ue) in the ra procedure to notify the radio base station (enb) of “call identification” in response to the “call identification request”; and a step c of causing the radio base station (enb) in the ra procedure to determine whether to allow the abovementioned return on the basis of the “call identification”.. ... Ntt Docomo Inc

06/04/15 / #20150156772

Radio base station apparatus, mobile terminal apparatus and radio communication method

A radio base station apparatus that reports srs (sounding reference signal) transmission control information to a mobile terminal apparatus and controls transmission of an srs by the mobile terminal apparatus is described. The radio base station includes an srs setting section configured to select bit information to report to the mobile terminal apparatus, from a table having bit information to indicate not to trigger the srs and bit information to indicate to trigger the srs using a default srs parameter and a reporting section configured to report the bit information for the mobile terminal apparatus using a downlink control channel.. ... Ntt Docomo Inc

06/04/15 / #20150156737

Radio communication system and communication control method

A radio communication system includes a user device, base stations, and a communication control device. The communication control device generates and reports, to the user device, selection information that is used to select base stations with which the user device should maintain synchronization. ... Ntt Docomo Inc

06/04/15 / #20150156735

Base station and method of controlling transmission power

A base station in accordance with one embodiment of the present invention includes a cumulative value storage unit configured to store a cumulative value of transmission power control commands transmitted to a mobile station; a transmission power control command determination unit configured to determine a transmission power control command based on the cumulative value stored in the cumulative value storage unit, when uplink transmission power is initialized; and a control channel transmission unit configured to transmit the transmission power control command determined by the transmission power control command determination unit to the mobile station on a control channel.. . ... Ntt Docomo Inc

06/04/15 / #20150156667

Mobile communication method, core network apparatus, radio access network apparatus, and mobile station

Network congestion is avoided, which congestion would be otherwise be caused by simultaneous transmission of “rrc connection requests” in a case where emergency information is transmitted to mobile stations ue in a broadcast area. A mobile communication method according to the present invention includes: a step a of a core network apparatus transmitting “write-replace warning request” containing “overload action/traffic load reduction indication” commanding to invoke access restriction to a radio access network apparatus if the core network apparatus is commanded to broadcast emergency information in a broadcast area and if an access restriction invoking condition is met; and a step b of the radio access network broadcasting the emergency information in the broadcast area and invoking the access restriction to a mobile station ue in the broadcast area.. ... Ntt Docomo Inc

06/04/15 / #20150156625

Mobile communication method and mobile station

An objective is to prohibit retransmission of “ue assistance information”. A mobile communication method according to the present invention includes the steps of: transmitting “ue assistance information” to a radio base station (enb) by a mobile station (ue), the “ue assistance information” prompting the radio base station (enb) to change a parameter for the mobile station ue used in the radio base station; notifying, by the radio base station (enb), the mobile station (ue) of a transmission-prohibited period of the “ue assistance information”; and stopping, by the mobile station (ue), retransmission of the “ue assistance information” on the basis of the transmission-prohibited period.. ... Ntt Docomo Inc

06/04/15 / #20150156336

Mobile communication network distribution system and mobile communication network distribution method

An object of the invention is to provide a communication service with high utilization efficiency. A mobile communication network distribution system includes: an acquisition unit that acquires condition information; a determination unit that determines a degenerate mobile communication network which provides a function satisfying a functional requirement based on the condition information acquired by the acquisition unit among a plurality of mobile communication networks to be a connection destination mobile communication network which is a connection destination of the ue; and a distribution unit that distributes the connection destination of the mobile communication terminal to the connection destination mobile communication network determined by the determination unit.. ... Ntt Docomo Inc

05/28/15 / #20150149870

Method and apparatus for low delay access to key-value based storage systems using fec techniques

A method and apparatus is disclosed herein for low delay access to key-value based storage systems. In one embodiment, the method for putting data into a key-value store comprising dividing the data into k portions, where k is an integer; selecting an erasure coding to apply to the k portions as a function of delay performance of the key-value based storage system including determining a number of parity blocks to generate to satisfy one or both of a delay target of putting the object into the key-value store and a delay target of subsequent read requests based on an offline performance simulation of delay performance when different numbers of parity blocks are used given the delay distributions obtained through measurements for different request types and object sizes; applying the erasure coding to the k portions to create n blocks of data; sending the n write requests to write blocks of data to the storage system, where each block is assigned a unique key in the key-value store.. ... Ntt Docomo Inc

05/28/15 / #20150146698

Mobile station

An objective is to appropriately select a “timing reference cell” and a “pathloss reference cell” for an scell in an stag. A mobile station ue according to the present invention includes a second management unit 11b configured to use a “ul cell” managed in association with a “dl only cell” where to perform a downlink communication only, as a pcell or an scell in a ptag.. ... Ntt Docomo Inc

05/28/15 / #20150146688

Radio communication system

A radio communication system includes a user device, a first base station, a second base station, a switching center, and a gateway device. In a handover operation performed in a situation in which a user-plane path has been established through the first base station, the first base station transmits, to the user device, a radio connection reconfiguration message commanding that a radio bearer be established between the second base station and the user device and receives a radio connection reconfiguration complete message transmitted from the user device. ... Ntt Docomo Inc

05/28/15 / #20150146638

Radio communication system and radio base station

In a radio communication system in which a high-power base station and a low-power base station collaborate for inter-cell interference control, the downlink transmission power at the high-power base station is suitably controlled. The high-power base station executes wireless transmission to the user terminals using resources that are the same as resources used by the low-power radio base station. ... Ntt Docomo Inc

05/28/15 / #20150146587

Communication control method, radio communication system, radio base station and user terminal

The present invention is designed to reduce the deterioration of communication quality even when different dl/ul configurations are applied between neighboring transmitting/receiving points (radio base stations). A radio communication method in a radio communication system, in which a plurality of radio base stations that communicate with a user terminal by means of time division duplexing each change the dl/ul configuration independently, includes the steps in which each radio base station generates a control signal that designates the number and positions of subframes to be allocated for dl and/or ul transmission among subframes constituting a radio frame, and transmits the control signal to the user terminal on a downlink control channel of a specific subframe constituting the radio frame.. ... Ntt Docomo Inc

05/28/15 / #20150146586

User terminal, radio communication method and radio communication system

The present invention is designed to allow effective allocation of pucch resources, even when the ratio between uplink subframes and downlink subframes is changed in each cell, in ca by tdd. A user terminal communicates with a radio base station by means of tdd, in a communication band that is broadbanded by ca between a first cell and a second cell, and has a receiving section that receives downlink control information for the first cell and downlink control information for the second cell, allocated to a downlink control channel of the first cell, a retransmission control determining section that determines retransmission control for downlink signals transmitted from each cell, a transmitting section that feeds back retransmission control signals to the radio base station using the pucch of the first cell, and a resource selection section that selects the pucch resources to feed back the retransmission control signals, and, when the ratio of dl subframes is higher in the second cell than in the first cell, the resource selection section determines the pucch resources to allocate the retransmission control signals that correspond to the first cell and the second cell to, by different methods.. ... Ntt Docomo Inc

05/21/15 / #20150142958

Control node and communication control method

A network manager is included in a mobile communication system including virtual call processing servers realized on any of one or more physical servers in association with an area in which a mobile communication terminal is present, and performing a communication process of the mobile communication terminal. The network manager includes a detection unit that detects processing load of a communication process of each physical server, a node generation unit that generates a virtual call processing server for each area based on the detected processing load of the communication process, and a control unit that performs control to transmit a signal related to the communication process from the mobile communication terminal to the virtual call processing server generated in association with the area in which the mobile communication terminal is present.. ... Ntt Docomo Inc

05/21/15 / #20150142448

Function execution instruction system, function execution instruction method, and function execution instruction program

To appropriately execute a function based on a plurality of words, a function-execution instruction server of a function-execution instruction system includes: a function-execution instruction unit that issues an instruction of the execution of one or more tasks; a word input unit that inputs information containing a plurality of words that are arranged in order; and an executed-function determination unit that determines a task the execution of which is instructed on the basis of the order of words input.. . ... Ntt Docomo Inc

05/21/15 / #20150141070

Mobile station and method of determining transmission power

A mobile station in accordance with one embodiment of the present invention includes a cumulative value storage unit configured to store a cumulative value of transmission power control commands transmitted from a base station; and a cumulative value addition unit configured to add the cumulative value stored in the cumulative value storage unit or a value calculated from the cumulative value to a predetermined initial value to calculate transmission power of a physical uplink shared channel or a physical uplink control channel, when uplink transmission power is initialized.. . ... Ntt Docomo Inc

05/21/15 / #20150141042

Mobile terminal, system and method

One aspect of the present invention relates to a mobile terminal having a continuous positioning function, including a radio positioning unit configured to derive a position of the mobile terminal in continuous positioning, a movement detection unit configured to detect a movement distance and a traveling direction of the mobile terminal, a target zone setting unit configured to set a target zone based on a confirmed position of the mobile terminal determined as being valid in the continuous positioning and the movement distance and the traveling direction of the mobile terminal detected by the movement detection unit, the target zone comprising an area to which it is estimated that a user has moved and a validity determination unit configured to determine whether the position of the mobile terminal measured by the radio positioning unit is included in the set target zone to determine validity of the measured position of the mobile terminal.. . ... Ntt Docomo Inc

05/21/15 / #20150141008

Mobile communication terminal, server apparatus, controlling system, controlling method, and program

A mobile communication terminal performs: registering a length of time starting at a time when an identifier of a base station is detected by a first communication unit, the identifier being transmitted by the base station accommodated in a first communication network, and ending at a time when the first communication unit accesses an access point accommodated in a second communication network in association with the identifier, the access point having an accessible range smaller than that of an accessible range of the base station; and starting, at the second first communication unit, a search for access information transmitted by the access point when a reference time determined based on a length of time associated with the registered identifier has passed a time when the identifier is detected, in a case where the identifier detected by the first communication unit is stored.. . ... Ntt Docomo Inc

05/21/15 / #20150139114

Device and antenna pictogram display method

There is disclosed user equipment including a communication unit for executing carrier aggregation and for executing communication through a plurality of carriers, and an antenna pictogram display unit for displaying, through an antenna pictogram, at least whether communication is allowed. When execution of the carrier aggregation is allowed, the antenna pictogram display unit displays an indication that the execution of the carrier aggregation is allowed together with at least one antenna pictogram.. ... Ntt Docomo Inc

05/21/15 / #20150139096

Radio communication system, serving gateway, network, and logical path establishment method

A radio communication system includes a packet gateway, serving gateways, a switching center that controls establishment of a logical path, a base station, and a user device. A first serving gateway transmits connection information to other nodes. ... Ntt Docomo Inc

05/21/15 / #20150138965

Mobile station

To improve the probability of successfully performing transmission processing by a priority terminal and transmission processing of an emergency call even during congestion. A mobile station ue according to the present invention includes: a reception unit 21 configured to acquire an emergency random access channel resource from a radio base station enb; a ra procedure execution unit 23 configured to perform a ra procedure by using the emergency random access channel resource when the mobile station ue is a priority terminal or when the mobile station ue transmits an emergency call; and an access control unit 22 configured to perform acb on transmission of a signal regarding the transmission processing. ... Ntt Docomo Inc

05/07/15 / #20150128190

Video program recommendation method and server thereof

Disclosed is a method and server for generating a video program recommendation for a particular video program. The method may include the following steps of: extracting key information from an electronic program guide of a particular video program and the particular video program; searching for contents related with the key information on a public social media by using the key information, and obtaining search results; extracting an abstract from the search results as an inquiry request; searching for video programs in a broadcasting video library and an internet video library based on the inquiry request, and using obtained search results as a video program recommendation for the particular video program; and storing the video program recommendation in association with the particular video program. ... Ntt Docomo Inc

05/07/15 / #20150128186

Mobile multimedia terminal, video program recommendation method and server thereof

The mobile multimedia terminal, a video program recommendation method and a server thereof may include steps of: extracting key information from electronic program guides; crawling social media information related with a terminal user from social media; generating an inquiry at least based on the key information and the crawled social media information; sending the inquiry to a server; searching for video programs in a broadcasting video library and an internet video library by using the inquiry and taking information of public social media as a constraint condition, as video program recommendations for the terminal, by the server; sending the video program recommendations to the terminal by the server; and presenting the video program recommendations to the user in association with the played programs.. . ... Ntt Docomo Inc

05/07/15 / #20150126237

Radio communication method, radio base station, user terminal and radio communication system

The present invention is designed to report transmit power information of each subframe adequately when a plurality of transmit power are set in a plurality of subframes constituting radio frames. A radio base station performs the steps of setting at least three or more kinds of varying transmit power in a plurality of subframes constituting a radio frame, and also determining a power ratio between a reference signal and a shared data channel signal in each subframe, generating bitmap information that represents a type pattern of transmit power set in the plurality of subframes, reporting the bitmap information and the power ratio to a user terminal and/or another radio base station, and generating the bitmap information with reference to a table in which the power ratio of each subframe and identifiers are associated with each other. ... Ntt Docomo Inc

05/07/15 / #20150126202

Mobile communication system, call processing node, and communication control method

A mobile communication system includes a plurality of call processing servers and a call processing management database that holds data necessary for call processing. The call processing server includes a call processing request accepting unit that accepts a request for call processing, a registration unit that registers the own node as the call processing server that is executing the call processing, an acquisition unit that acquires information of the mobile communication terminal related to the call processing request from the call processing management database or from the call processing server registered as the call processing server that is executing the call processing, a call processing unit that perform call processing, and a call processing result storage unit that stores information of a result of the call processing in the call processing management database.. ... Ntt Docomo Inc

05/07/15 / #20150126191

Radio communication system, radio base station and communication method

Provided are a radio communication system, a radio base station and a communication method which enable an inter base-station handover while reducing a processing load on a core network. An enb 100 sends a handover request which requests an inter base-station handover of a ue 50 from the enb 100 to an enb 200 via an inter base-station transmission path. ... Ntt Docomo Inc

05/07/15 / #20150126186

Mobile communication control apparatus, mobile communication system, mobile communication control method, and mobile communication control program

When the priority class is set to a mobile terminal that has moved from cell to cell and even if an hlr is in a congestion state, a communication service is provided to the mobile terminal on a priority basis. A location registration signal, which is transmitted from a mobile terminal (2) that has moved from another area, and which is to be transmitted to an hlr (30), is received, and the apparatus corresponding to the movement source area is identified based upon the content of the location registration signal. ... Ntt Docomo Inc

05/07/15 / #20150126152

Mobile station

To improve probability of successfully performing origination processing by a priority terminal and origination processing of an emergency call even during congestion. In a mobile station ue according to the present invention, an as function unit 11 is configured to receive ssac information from a radio base station enb and transmit the ssac information to the nas function unit 12 at a predetermined timing, and a nas function unit 12 is configured to perform ssac on transmission of “ra preamble” in a ra procedure for the mobile station ue in the drx state to transmit an uplink signal, or on transmission of an uplink signal from the mobile station ue in the non-drx state.. ... Ntt Docomo Inc

05/07/15 / #20150124730

Mobile station

To improve the probability of successfully performing transmission processing by a priority terminal and transmission processing of an emergency call. A mobile station ue according to the present invention includes an ra procedure execution unit 13 configured to transmit “ra preamble” by the contention-based method in an ra procedure for transmitting an uplink signal performed when the mobile station ue is in the drx state, and an access control unit 12 configured to perform acb on the transmission of “contention-based ra preamble”.. ... Ntt Docomo Inc

05/07/15 / #20150124720

Radio communication system, radio base station, and communication control method

A radio base station communicates with mobile terminals and is configured to be able to execute radio transmission to the mobile terminals using resources that are the same as resources used by a second radio base station forming a second cell having a smaller area within a first cell formed by the radio base station itself and is configured to collaborate with the second radio base station for inter-cell interference control. The radio base station sets a modulation system having a modulation level that is less than that of the modulation system provisionally determined as the modulation system for mobile terminals to which a resource group having a low transmission power is assigned and adjusts transmission parameters in a case in which the modulation system provisionally determined for the mobile terminals to which the resource group having the low transmission power is assigned, is inappropriate for the low transmission power.. ... Ntt Docomo Inc

04/30/15 / #20150119060

Method of barring network access, mobile device and processor

When a network is requiring access barring, a mobile device determines whether a reference value broadcasted to the mobile device indicates a value determining that an access is denied regardless of a numerical value generated by the mobile device, or indicates a value having a possibility that an access of a certain mobile device is denied while an access of another mobile device is allowed. In the latter case, the mobile device determines appropriateness of an access by performing predetermined processing using the reference value as a value to be checked for a relationship with a numerical value generated by the mobile device when the mobile device does not have a special type access class, and uses a value enabling allowance of an access without performing the predetermined processing as a value for determining appropriateness of an access when the mobile device has the special type access class.. ... Ntt Docomo Inc

04/30/15 / #20150119054

Radio base station and radio communication system

A radio base station provides user equipments with system information regarding a radio base station that does not broadcast the system information. The radio base station wirelessly communicating with user equipments does not have a function to broadcast system information including information necessary for user equipments to connect with the radio base station to user equipments. ... Ntt Docomo Inc

04/30/15 / #20150119053

Radio communication system and radio base station

A high-power radio base station includes a resource setter configured to determine a ratio of the number of second resources at which the radio communicator should stop radio transmission to the sum of the number of the second resources and the number of first resources at which the radio communicator should execute radio transmission. The resource setter determines the ratio on the basis of a first number and a second number, the first number being the number of mobile terminals that are assumed to be connected with the radio base station, rather than the low-power radio base station, when cell range expansion (cre) is not applied, but are connected with the low-power radio base station by virtue of application of cell range expansion, the second number being the number of mobile terminals connected with the radio base station when cell range expansion is applied. ... Ntt Docomo Inc

04/30/15 / #20150119051

Radio communication system, base station, mobile station, and radio communication method

Provided are a radio communication system, a base station, a mobile station, and a radio communication method, by which it is possible to shorten a control time until the transmission of uplink data is possible, and to improve a perceived speed of a user when uplink data is small. A base station 100 transmits collision-type access permission including information on a collision-type access channel toward a plurality of mobile stations, the collision-type access channel serving as a radio resource other than a radio resource assigned in response to a scheduling request and a radio resource available for transmission of uplink data by the plurality of mobile stations. ... Ntt Docomo Inc

04/30/15 / #20150119049

Radio communication terminal, communication control apparatus, and communication control method

Provided are a radio communication terminal, a communication control apparatus, and a communication control method capable of enhancing the possibility of providing a communication application through inter-terminal direct communication (d2d communication) even in a case where a call request cannot be accepted due to congestion on the network side. In a terminal 400a, a call restriction reception unit 420 receives a call restriction containing configuration information on a communication environment necessary for direct communication. ... Ntt Docomo Inc

04/30/15 / #20150119027

Communication system, mobile terminal apparatus, local area base station apparatus and communication method

The present invention is designed to provide highly efficient local area radio access. In a communication system in which a mobile terminal apparatus (10) detects a local area base station apparatus (30) which the mobile terminal apparatus (10) will connect to, among local area base station apparatuses (30), the local area base station apparatuses (30) transmit detection signals to be used to detect the local area base station apparatus (30), to the mobile terminal apparatus (10), in the radio communication scheme for the local areas which is different from the radio communication scheme for the wide area, and also transmit associated control signals that are attached to the detection signals and that allow a local area to execute connection control by itself, to the mobile terminal apparatus (10), and the mobile terminal apparatus (10) receives the associated control signals only when detection signals that are secured for the connection control by the local area alone, among the detection signals, are received.. ... Ntt Docomo Inc

04/30/15 / #20150117561

Codebook adaptation method, radio base station apparatus and user equipment

A method and system for adapting the structure of a codebook for precoding, by changing parameters, in downlink mimo transmission using a plurality of transmitting antennas, is disclosed. A codebook adaptation method to adapt a codebook for precoding applied to downlink mimo transmission includes the steps of reporting the codebook size of the codebook, defined with a plurality of parameters pertaining to gain information and phase information, from one communication apparatus to another communication apparatus, and, at the other communication apparatus, adapting the structure of the codebook, based on the codebook size reported from the one communication apparatus.. ... Ntt Docomo Inc

04/30/15 / #20150117529

Video predictive encoding device, video predictive encoding method, video predictive encoding program, video predictive decoding device, video predictive decoding method, and video predictive decoding program

A video prediction encoding device provided with a picture storage unit storing, as reference pictures to be used for encoding of a subsequent picture, one or more of reconstructed pictures restored from compressed picture data and a memory control unit to control a frame memory in the picture storage unit. When a frame size of input pictures is not more than 1/(2̂l) (where l is an integer of one or more) of a maximum frame size of pictures, the memory control unit determines that (2̂l) times the maximum number of reconstructed pictures are storable in the frame memory.. ... Ntt Docomo Inc

04/30/15 / #20150117405

Mobile station and mobile communication method

A mobile station (ue) of the invention includes: a reception unit (11) configured, when ca communication is performed by using a cell (#a) as a pcell and using a cell (#1) as an scell, to receive “mobilitycontrolinformation” instructing switching of the pcell to a macrocell (#b); and a management unit (12) configured, when the “mobilitycontrolinformation” further instructs setting of the cell (#1) as the scell, to set the cell (#1) as the scell in an activated state.. . ... Ntt Docomo Inc

04/30/15 / #20150117404

Mobile station and radio base station

A mobile station (ue) according to the present invention includes a control unit (12) configured to deactivate scell #2 when the mobile station (ue) is instructed to modify a tag, to which the scell #2 belongs, from tag #2 to tag #1.. . ... Ntt Docomo Inc

04/30/15 / #20150117394

Method and apparatus for coordinating a cell on a plurality of resource blocks

A method and an apparatus for coordinating a cell on a plurality of resource blocks, and a method for selecting, by a central control device, a mode for coordinating a cell on a plurality of resource blocks in a communication system including a base station and the central control device are disclosed. The method for coordinating a cell comprises: determining whether the cell needs to be muted on at least one resource block; determining a ratio of the resource block on which the cell is muted to the plurality of resource blocks, in a case where the cell needs to be muted on the at least one resource block; and determining, based on the ratio, the resource block on which the cell is muted among the plurality of resource blocks, the resource block being a time resource block, a frequency resource block or a time-frequency resource block.. ... Ntt Docomo Inc

04/30/15 / #20150117353

Blind decoding method, radio base station, user terminal and radio communication system

The blind decoding method disclosed herein is a blind decoding method to allow a user terminal to blind-decode downlink control information that is transmitted from a radio base station using at least one of a legacy pdcch and an enhanced pdcch that is frequency-division-multiplexed with a pdsch, and includes the steps in which the radio base station reports information for configuring a number of candidates, which information is used to configure numbers of search space candidates for the legacy pdcch and numbers of search space candidates for the enhanced pdcch, to the user terminal, and the user terminal blind-decodes the downlink control information based on the numbers of search space candidates for the legacy pdcch and the numbers of search space candidates for the enhanced pdcch that are configured based on the candidate quantity configuration information.. . ... Ntt Docomo Inc

04/30/15 / #20150117351

Radio communication system, base station apparatus, user terminal, and radio communication method

The present invention is designed to measure interference with high accuracy in future systems that do not rely on crss. A base station apparatus has a determining section (401) that determines the resources to allocate desired signal measurement reference signals (csi-rss) and interference estimation reference signals to, and a reference signal generating section (405) that applies scrambling sequences and generates the interference estimation reference signal, and the scrambling sequences are controlled such that varying scrambling sequences are applied to the interference estimation reference signals between a plurality of transmission points or transmission point groups.. ... Ntt Docomo Inc

04/30/15 / #20150117341

Radio communication system, radio base station, and communication control method

Resources available for large power base stations are controlled in a radio communication system in which mobile terminals with and without interference suppression capability are used together and in which a large power base station and small power base stations coordinate inter-cell interference control. A radio base station coordinates inter-cell interference control with at least one second radio base station forming a second cell within a first cell of the radio base station, the second cell having a smaller area than the first cell. ... Ntt Docomo Inc

04/23/15 / #20150113478

Communication terminal device, accounting device, and information distributing system

A communication terminal device includes an icon creation unit that creates an icon on a display screen for access to resources, the icon containing access destination information so that classification of the resources can be determined, a information storage unit that stores local resources, a resource viewing unit that acquires and outputs resources in response to a selection input of the icon, and an icon use information transmission unit that transmits icon use information for the selected and input icon to an accounting server device together with access destination information as information from which classification of the resources can be determined, in which the resource viewing unit acquires the network resources based on redirection information received from the accounting server device when the selected resources are the network resources, and acquires the local resources from the information storage unit when the resources are the local resources.. . ... Ntt Docomo Inc

04/23/15 / #20150111571

User equipment and reconnection method for mobile communications system

User equipment includes a cell search unit configured to execute a cell search; a detector configured to detect that reconnection is required; a storage unit configured to store voip support information that indicates, for each type of radio communications system (rat), whether voice packet communication is allowed; a cell search target determination unit configured to refer to the voip support information and report only the type of the radio communications system (rat) for which the voice packet communication is allowed to the cell search unit as a target of the cell search, when the detector detects that the reconnection is required for the voice packet communication; and a communication unit configured to communicate in a cell that is detected by the cell search.. . ... Ntt Docomo Inc

04/23/15 / #20150111556

Mobile station

To provide restriction control independently from the packet call and the voice call. A mobile station ue according to the present invention is configured to perform ssac for determining whether or not to permit transmission of an ims-related originating signal according to a ssac restriction information broadcasted. ... Ntt Docomo Inc

04/23/15 / #20150111554

Femto base station apparatus, operation system

In operation control for a femto base station apparatus, file updating is performed only for an apparatus needing updating only when needed to prevent the bandwidth of the network from being narrowed. Version information of a file necessary for the operation control for a femto base station apparatus is obtained before performing the operation control. ... Ntt Docomo Inc

04/23/15 / #20150110194

Moving picture encoding apparatus, moving picture decoding apparatus, moving picture encoding method, moving picture decoding method, moving picture encoding program, and moving picture decoding program

An object of the present invention is to increase efficiency of information compression in coding and decoding. A moving picture encoding apparatus 10 of the present invention has a motion vector predicting part for performing, based on a temporal relation among adjacent reference frame images 703a, 703b, 703c referred to for detecting motion vectors of adjacent blocks adjacent to a coding target block, a target reference frame image 702 referred to for detecting a motion vector of the target block, and a target frame image 701 being the frame image of the coding target, or based on time information thereof, a correction of scaling the motion vectors 751a, 751b, 751c of the adjacent blocks on the basis of the target reference frame image 702; and a determination of an optimum predicted motion vector based on the motion vectors of the adjacent blocks; and thereby predicting the optimum predicted motion vector after the correction.. ... Ntt Docomo Inc

04/23/15 / #20150110189

Video predictive encoding device and system, video predictive decoding device and system

A video predictive encoding device includes an input module to receive pictures forming a video sequence, and an encoding module to encode the pictures by either intra prediction or inter prediction to generate compressed picture data, and to packetize the compressed image data along with packet header information. The packet header information includes a picture type. ... Ntt Docomo Inc

04/23/15 / #20150110184

Dynamic image predictive encoding and decoding device, method, and program

A video predictive encoding device can include an input device to implement input of pictures constituting a video sequence; an encoder to encode the pictures by intra-prediction or inter-prediction and to encode output order information of each picture and information about a picture type of each picture to generate compressed picture data. The compressed picture data includes a picture to serve as a random access point. ... Ntt Docomo Inc

04/23/15 / #20150110183

Image predictive encoding and decoding device

An image predictive encoding device can efficiently encode an image, while suppressing an increase in prediction information and reducing the prediction error of a target block. In an image predictive encoding device, according to one embodiment, to produce a prediction signal of a partition in a target region, it is decided whether prediction information of a neighbouring region can be used. ... Ntt Docomo Inc

04/23/15 / #20150110039

Radio communication method, radio communication system, radio base station and user terminal

The present invention is designed to reduce the impact of interference even when different dl/ul configurations are applied between neighboring transmitting/receiving points (radio base stations). A radio communication method in a radio communication system, in which a plurality of radio base stations that communicate with a user terminal by means of time division duplexing each change the dl/ul configuration independently, includes the steps in which each radio base station measures the interference levels from other radio base stations, and transmits a change request signal to request a change of the dl/ul configuration and/or a change of transmission power to the other radio base stations, based on the measured interference levels, and the other radio base stations, having received the change request signal, change the dl/ul configuration and/or transmission power and communicate with the user terminal.. ... Ntt Docomo Inc

04/23/15 / #20150110032

Radio communication system, radio base station apparatus, user terminal and communication control method

The present invention is designed to realize signaling of cell index information that is suitable for comp transmission/reception techniques. The radio base station apparatus of a special cell generates downlink control information, in which the indices of comp sets are incorporated in a physical downlink control channel that is shared between the multiple cells that carry out joint transmission, based on a table in which indices to represent individual coordinated cells that serve as transmission points in comp transmission and indices of comp sets to represent combinations of multiple cells that carry out joint transmission in comp transmission are mapped to bit data.. ... Ntt Docomo Inc

04/23/15 / #20150110031

Radio base station, user terminal, radio communication system and radio communication method

A radio base station transmits downlink control information to user terminals through enhanced pdcchs which are frequency-division-multiplexed with a pdsch, and includes an allocation section that allocates a plurality of enhanced pdcch sets to each user terminal, the plurality of enhanced pdcch sets each including a plurality of prb pairs placed for the enhanced pdcchs, so that at least one enhanced pdcch set overlaps with other user terminals, and a mapping section that selects enhanced pdcch sets from the plurality of enhanced pdcch sets so that the number of enhanced pdcch sets used to transmit the downlink control information in a predetermined time resource unit becomes minimum, and maps the downlink control information to the prb pairs which form the selected enhanced pdcch sets.. . ... Ntt Docomo Inc

04/23/15 / #20150109985

Radio base station, user terminal, radio communication method and radio communication system

The present invention is designed to prevent the decrease of throughput and also reduce the overhead of csi feedback when comp transmission is applied. A radio base station is configured to be able to perform coordinated multiple-point transmission/reception with a user terminal, and includes a detection section configured to detect a retransmission control signal fed back from the user terminal, and a cqi updating section configured to update a cqi for coordinated multiple-point transmission/reception using received quality information in each cell, and the cqi updating section updates the cqi using a calculating formula that is defined with the received quality information in each cell and a variable which changes the value depending on the content of the retransmission control signal.. ... Ntt Docomo Inc

04/16/15 / #20150105088

Radio communication terminal and communication method

Provided are a radio communication terminal capable of causing a communication application to speedily find out whether d2d communication is possible by using a radio access network such as lte. A terminal 400a includes a terminal finding unit 405 configured to find a candidate terminal capable of executing direct communication with the terminal 400a, a phonebook processing unit 420 configured to obtain direct-communication phonebook data containing an identifier of the candidate terminal found by the terminal finding unit 405, based on regular phonebook data containing an identifier of another radio communication terminal and being associated with the terminal 400a, and a direct communication execution unit 430 configured to execute direct communication with a counterpart terminal (e.g., a terminal 400b) indicated in a communication request from a communication application 410a, 410c, when the counterpart terminal is contained in the direct-communication phonebook data as the candidate terminal.. ... Ntt Docomo Inc

04/16/15 / #20150105039

Mobile communication method, radio base station and mobility management node

To improve probability of successfully performing transmission processing by a priority terminal and transmission processing of an emergency call even during congestion. A mobile communication method according to the present invention includes the steps of: causing a radio base station enb to transmit “ue context release request” regarding a predetermined mobile station ue to a mobility management node mme, the “ue context release request” containing identification information of multiple target mobile stations ue; causing the mobility management node mme to release an access bearer of the predetermined mobile station ue in response to the “ue context release request”, and transmit “ue context release command” regarding the predetermined mobile station ue to the radio base station enb, and causing the radio base station enb to transmit “rrc connection release” to the plurality of target mobile stations ue.. ... Ntt Docomo Inc

04/16/15 / #20150103933

Codebook creating method, codebook creating apparatus and initial codebook creating method

A codebook creating method involves acquiring amplitude or power of channel state information of channels between the transmission antennas and the reception antenna, mapping elements of a codeword of an initial codebook dynamically to the respective transmission antennas based on the amplitude or power of the channel state information thereby to create a first codebook, and scaling norms of elements corresponding to the respective transmission antennas in a codeword of the first codebook by using norm scale factors of the respective transmission antennas fixed based on the amplitude or power of the channel state information. An initial codebook creating method involves configuring a predetermined element of the codeword of the initial codebook to have a predetermined phase resolution, and configuring other elements of the codeword of the initial codebook to be arranged in an increasing or decreasing order of phase resolution.. ... Ntt Docomo Inc

04/16/15 / #20150103932

Channel estimation method and receiver

To improve the accuracy of a channel estimated value when beam-forming is employed, provided is a channel estimation method including: determining a channel estimated value of a cell-specific reference signal from a cell-specific reference signal; determining a channel estimated value of a ue-specific reference signal from a ue-specific reference signal; calculating a cell-specific channel estimated value by using the channel estimated value of the cell-specific reference signal; estimating a beam-forming vector by using the channel estimated value of the cell-specific reference signal and the channel estimated value of the ue-specific reference signal; and calculating a ue-specific channel estimated value by multiplying the cell-specific channel estimated value by the beam-forming vector.. . ... Ntt Docomo Inc

04/16/15 / #20150103774

Radio communication system, radio base station apparatus and radio communication method

The present invention is designed to feed back a plurality of pieces of csi with respect to each transmission point, when comp transmission is applied in the framework of carrier aggregation. The radio communication method according to the present invention is a radio communication method in a radio communication system including a plurality of radio base station apparatuses and a user terminal that is configured to be able to perform coordinated multi-point transmission/reception with the plurality of radio base station apparatuses, and, in this radio communication method, when coordinated multi-point transmission is applied, the radio base station apparatus, transmits csi set information on a set including at least one csi through higher layer signaling, and also transmits csi request information in dci, and the user terminal feeds back csi based on the csi set information and the csi request information.. ... Ntt Docomo Inc

04/16/15 / #20150103762

Mobile communication method, radio base station, and mobile station

The present invention aims to reduce an insertion loss or the like caused by a diplexer inserted to reduce leakage from an uplink bandwidth to a downlink bandwidth of different bands, and thereby to improve a communication quality. A mobile communication method according to the present invention includes the steps of: transmitting simultaneous transmission capability information from a mobile station ue to a radio base station enb, the simultaneous transmission capability information indicating whether or not the mobile station ue is able to transmit uplink data signal via multiple carriers in multiple bands within a same sub-frame in performing uplink ca; performing scheduling for the mobile station ue by the radio base station enb based on the simultaneous transmission capability information; and performing communications by the mobile station ue based on the scheduling information.. ... Ntt Docomo Inc

04/16/15 / #20150103741

Mobile station

A mobile station ue according to the present invention includes: a managing unit 11 configured to manage one or multiple tags each including any of a pcell and an scell; an adjusting unit 12 configured to adjust the transmission timings of uplink signals in any of the pcell and the scell belonging to the same tag such that the transmission timings will be the same; and a transmitting unit 13 configured to notify a radio base station enb of the supportable number of tags.. . ... Ntt Docomo Inc

04/02/15 / #20150095024

Function execution instruction system, function execution instruction method, and function execution instruction program

To appropriately execute functions based on words that are consecutively input, a function-execution instruction server of a function-execution instruction system includes: a function-execution instruction unit that issues an instruction of the execution of one or more tasks related to preset categories for respective tasks; a word input unit that inputs information containing a word; category identifying unit that identifies a category of a word; an executed-function determination unit that determines a task, based on the category thus identified; and an executed-function storage unit that stores therein a function the execution of which was instructed. The executed-function determination unit, based on the category identified and a category related to a task the execution of which was previously instructed, determines whether to issue an instruction of the execution of the function the execution of which was previously instructed from now.. ... Ntt Docomo Inc

04/02/15 / #20150094076

Radio base station, radio communication system and radio communication method

The present invention is designed to make effective use of radio resources in vsec to output a plurality of beams of varying tilt angles for sectorization in vertical directions. A radio communication method for a radio base station that outputs a plurality of beams of varying tilt angles and forms a plurality of cells that are sectorized vertically, and a user terminal that establishes wireless connection with the radio base station, provides the steps in which the radio base station acquires information about the communication capacity of each of the plurality of cells, and controls the vertical plane beam width and/or transmission power of each cell and sets the coverage area of each cell so that differences in communication capacity between the plurality of cells are reduced.. ... Ntt Docomo Inc

03/26/15 / #20150087340

Base station positioning apparatus, base station positioning method, and base station positioning program

There is provided a base station positioning apparatus, a base station positioning method, and a base station positioning program for reducing an error in a transverse direction with respect to a direction from a base station toward a barycentric position of a cell of the base station when a position of a mobile terminal is estimated in the time-of-arrival positioning method. A correction candidate area specifying unit (66) calculates a difference between: an rsrp for each area acquired by a quality data acquiring unit (65) in the case where the interior of a service area is divided into areas with the same radio wave intensities; and an rsrp received by a radio wave intensity acquiring unit (62) when an mt (50) receives a signal. ... Ntt Docomo Inc

03/26/15 / #20150087283

Radio communication system, communication control apparatus, radio communication terminal, and communication control method

Provided are a radio communication system allowing d2d communication to be provided by using a radio access network such as lte while controlling the radio communication terminals from the network side. A radio base station 100 broadcasts broadcast information to a predetermined radio communication area, the broadcast information indicating whether or not the direct communication is permitted. ... Ntt Docomo Inc

03/26/15 / #20150085838

Radio communication method, radio base station and radio communication system

A radio communication method is provided in which beam forming information for forming transmission beams directed from the small base station to the user terminal are generated based on position-related information of the user terminal acquired by communication between the macro base station and the user terminal using a coverage carrier and position-related information of the small base station, and the small base station precodes at least one of a common control signal and a reference signal that are common in a small cell (c2) based on the beam forming information and transmits the precoded signal from a plurality of transmitting antennas using a capacity carrier.. . ... Ntt Docomo Inc

03/26/15 / #20150085819

Radio base station apparatus, mobile station apparatus and radio communication method

To provide a radio base station apparatus and radio communication method capable of performing radio communications using downlink reference signal structures suitable for antenna virtualization, a radio base station apparatus (200) has a plurality of transmission antennas, generates crss used in demodulation of at least downlink control information, cqi-rss generated for each of the transmission antennas used in measurement of channel quality, and dm-rss generated for each stream used in demodulation of downlink transmission data, and multiplexes the crss, cqi-rss and dm-rss into a same transmission time unit to transmit from each of the antennas.. . ... Ntt Docomo Inc

03/26/15 / #20150085770

Radio communication system, user terminal, radio base station apparatus and radio communication method

The present invention is designed to, upon updating cqis that are fed back, prevent the increase of the overhead of feedback information, and still improve the accuracy of the updated cqis when comp transmission is applied. The radio communication system of the present invention is formed with a plurality of radio base station apparatuses and a user terminal that is configured to be able to perform coordinated multiple point transmission/reception with the plurality of radio base station apparatuses, and the user terminal acquires channel state information of multiple cells, generates feedback information such that the channel state information of multiple cells is allotted and transmitted in a plurality of subframes, and feeds back the generated feedback information to the radio base station apparatus of one of the multiple coordinated points, using a physical uplink shared data channel.. ... Ntt Docomo Inc

03/19/15 / #20150082308

Method and apparatus for network virtualization

A method for implementing an entity of a network by virtualizing said network entity and implementing it on one or more servers each acting as an execution unit for executing thereon one or more applications running and/or one or more virtual machines running on said execution unit, each of said application programs or virtual machines running on a server and implementing at least a part of the functionality of said network entity being called a virtual network function vnf module, wherein a plurality of said vnf modules together implement said network entity to thereby form a virtual network function vnf, said method comprising the steps of: obtaining m key performance indicators (kpi) specifying the required overall performance of the vnf, obtaining n performance characteristics for available types of execution units, determining one or more possible deployment plans based on the obtained m kpi and n performance characteristics, each deployment plan specifying the number and types of execution units, such that the joint performance of vnf modules running on these execution units achieves the required overall performance of the vnf.. . ... Ntt Docomo Inc

03/19/15 / #20150081733

Data search system and data search method

A data search system 1 conducts a search through a plurality of pieces of search target data to which at least date and time information is attached as attached data. The data search system includes search means for searching the plurality of pieces of search target data for keyword-matching data including a search keyword, and extracting, as a linked search keyword, the date and time information on a time period that is included in the attached data attached to the keyword-matching data, linked search means for searching the plurality of pieces of search target data for whether there exists linked matching data to which attached data including a time period that is close to the time period of the linked search keyword is attached, and output means for outputting the keyword-matching data and the linked matching data.. ... Ntt Docomo Inc

03/19/15 / #20150080035

Mobile station and information delivery server

Provided are a mobile station and an information delivery server that are capable of continuously providing a non-voice service, particularly a message service, even when being transitioned between areas of different radio access technologies. A ue (100) determines that an sms over ip is in an unavailable state through communication via a radio access network. ... Ntt Docomo Inc

03/19/15 / #20150079976

Communication system, phonebook server, radio communication terminal, and communication method

Provided are a communication system capable of causing a communication application to speedily find out whether d2d communication is possible or not. The phonebook server 300 includes a phonebook data acquisition unit 310 configured to acquire first phonebook data containing an identifier of a terminal 400b, a terminal location acquisition unit 320 configured to acquire a location of the terminal 400b contained in the first phonebook data acquired by the phonebook data acquisition unit 310, a phonebook data generation unit 330 configured to generate second phonebook data containing an identifier of a candidate terminal capable of direct communication, based on the location of the terminal 400b acquired by the terminal location acquisition unit 320, and a transmission unit 340 configured to send a terminal 400a the second phonebook data generated by the phonebook data generation unit 330.. ... Ntt Docomo Inc

03/19/15 / #20150078325

Communication system, local area base station apparatus, mobile terminal apparatus and communication method

The present invention is designed to provide a communication system, a local area base station apparatus, a mobile terminal apparatus and a communication method that can provide highly efficient local area radio access. In a communication system in which a mobile terminal apparatus performs radio communication with a wide area base station apparatus that covers a wide area, using a first carrier frequency, and performs radio communication with a local area base station apparatus that covers a local area, using a second carrier frequency, the wide area base station apparatus allocates different frequencies between the uplink and the downlink in the first carrier frequency and communicates with the mobile terminal apparatus, and the local area base station apparatus dynamically switches between the uplink and the downlink in the second carrier frequency on a per time basis based on the communication environment, and communicates with the mobile terminal apparatus.. ... Ntt Docomo Inc

03/19/15 / #20150078289

Radio communication system, mobile terminal apparatus, radio base station apparatus and radio communication method

The present invention is designed to realize signaling of dm-rs sequence parameters for improving the flexibility of allocation of dm-rs resources in a system having complex cell structures. According to the radio communication method of the present invention, in a radio communication system supporting a system band formed with a plurality of component carriers by carrier aggregation, a radio base station apparatus allocates uplink dm-rs sequences per mobile terminal apparatus and per component carrier, and reports dm-rs sequence allocation information, and a mobile terminal apparatus generates dm-rs sequences using the allocation information reported from the radio base station apparatus.. ... Ntt Docomo Inc

03/19/15 / #20150078281

Communication system, mobile terminal apparatus, local area base station and communication method

The present invention is designed to provide highly efficient local area radio access. A communication system, in which a mobile terminal apparatus (10) detects local area base station apparatus (30) which the mobile terminal apparatus (10) will connect to, is configured such that the mobile terminal apparatus (10) receives downlink signals from the local area base station apparatus (30) by a radio access scheme for local areas and by a subframe configuration for the local areas, and transmits uplink signals to the local area base station apparatus (30) by the same radio access scheme as in a downlink and by the same subframe configuration as in the downlink, and the local area base station apparatus (30) transmits downlink signals to the mobile terminal apparatus (10) by the radio access scheme for the local areas and by the subframe configuration for the local areas, and receives uplink signals from the mobile terminal apparatus (10) by the same radio access scheme as in a downlink and by the same subframe configuration as in the downlink.. ... Ntt Docomo Inc

03/19/15 / #20150078252

Communication control device and communication control method

Provided are a communication control device by which a situation where a mobile station is disabled to receive a terminating call can be prevented from continuing for a long time, even when the ip-can bearer is removed for some reason. A p-cscf 310 executes the steps of: detecting a state of the ip-can bearer; transmitting a 503 service unavailable, rejecting a terminating call to an ue 100, to a source making the terminating call when loss of the ip-can bearer which has been established is detected; and canceling the transmission of the rejection response when receiving a signal from the ue 100 in a situation where the loss of the ip-can bearer is detected, the signal being related to an originating call to the ip multimedia subsystem and being a signal other than registration to the ip multimedia subsystem.. ... Ntt Docomo Inc

03/12/15 / #20150072695

Private branch exchange system, private branch exchange server, and communication method

A private branch exchange system capable of enabling radio communication terminals belonging to an extension group to perform device-to-device direct communication (d2d communication) by using a radio access network such as lte. A private branch exchange server 300 includes a transition trigger detection unit 310 configured to detect a trigger for a transition to the direct communication, an extension group list retention unit 320 configured to retain an extension group list containing an identifier of the radio communication terminal belonging to the extension group, a subgroup selection unit 330 configured to select a certain subgroup from the extension group list, and a direct communication command unit 340 configured to send permission information on the direct communication and configuration information on a communication environment necessary for the direct communication to the radio communication terminal contained in the subgroup selected by the subgroup selection unit 330.. ... Ntt Docomo Inc

03/12/15 / #20150071200

Communication system, base station apparatus and communication method

The present invention is designed to provide a communication system, a base station apparatus and a communication method that are suitable for carrier aggregation in a hetnet. In a communication system which provides a first transmission point (20a) and a plurality of second transmission points (20b), and which controls carriers such that a mobile terminal apparatus (10) communicates with the first transmission point using a first carrier (cc #1) and communicates with the second transmission points using a second carrier (cc #2), which is different from the first carrier, the base station apparatuses (20b) to constitute the second transmission points transmit cell-specific reference signals in the second carrier using the same frequency resources between the second transmission points, and the mobile terminal apparatus receives the reference signals transmitted by the second carrier from the second transmission points.. ... Ntt Docomo Inc

03/12/15 / #20150071148

State transition timer setting system, mobile equipment, mobile communication system, and state transition timer setting method

A state-transition-timer setting system includes: an acquiring unit that acquires prediction information on a traffic amount of a mobile equipment; a timer determining unit that determines a state transition timer for a time after which a state of the mobile equipment transitions from a communication state to a power-saving state, based on the prediction information; and a timer setting unit that sets the state transition timer for the mobile equipment. The state transition timer includes either a time from when data communication of the mobile equipment is completed to when a transition request command to request transition into the power-saving state is transmitted to the base station, or a shortest transmission interval at which the mobile equipment can transmit the transition request command subsequently to when the mobile equipment transmits the transition request command after completion of data communication of the mobile equipment.. ... Ntt Docomo Inc

03/12/15 / #20150070246

Reflectarray

A reflectarray reflects an incident wave in a desired direction, and the reflectarray includes a plurality of elements arranged in a first direction and in a second direction perpendicular to the first direction. The elements reflect the incident wave. ... Ntt Docomo Inc

03/05/15 / #20150065163

Mobile terminal and battery saving method in mobile communication system

A mobile terminal in a mobile communication system is disclosed, the mobile terminal including a location measurement unit configured to obtain location information, an area id obtaining unit configured to obtain information of an identifier of an area in which the mobile terminal resides, a control unit configured to cause the location measurement unit to obtain the location information in the case where the identifier of the area in which the mobile terminal currently resides is different from the identifier of the area in which the mobile terminal resided in the past, and a reporting unit configured to report the location information obtained by the location measurement unit to a server.. . ... Ntt Docomo Inc

03/05/15 / #20150063292

Transmission apparatus and radio resource assignment method

A transmission apparatus is provided with radio resource assignment means that assigns radio resources to each physical channel according to a type of the physical channel; and transmission means that transmits information to be transmitted by each physical channel using the assigned radio resources.. . ... Ntt Docomo Inc

03/05/15 / #20150063235

Communication system, mobile station, and communication method

A ue 100 is connectable to an ip-can conforming to internet protocol via any one of lte supporting a service conforming to an ip multimedia subsystem and 3g not supporting the service conforming to the ip multimedia subsystem. In a case where the ue 100 receives a connection rejection notification from a sgsn capable of communicating with the ip multimedia subsystem after transitioning from lte to 3g, the ue 100 suspends transmission of a request for reconnection to the ip access network only if the mobile station is camping in 3g through which the connection rejection notification has been received. ... Ntt Docomo Inc

03/05/15 / #20150062401

Information terminal and imaging control method

An information terminal includes a touch panel display including a press detection mechanism capable of accepting a press operation on an operating surface and displaying an image output from an imaging device, a detection unit to detect a touch operation and a press operation on the operating surface, a focus controller to control a focus mechanism of the imaging device to set a focus on a subject displayed on the touch panel display when the touch operation is detected by the detection unit, and a shutter controller to control a shutter mechanism of the imaging device to perform imaging when a specified press operation is detected by the detection unit.. . ... Ntt Docomo Inc

03/05/15 / #20150062030

Terminal for electronic book content replay and electronic book content replay method

A terminal for playing electronic book content includes vibration generation elements that are subdivided and arranged along a display screen of a touch panel, a vibration generation unit that supplies an electrical signal to the vibration generation elements to generate vibration, a page position detection unit that detects a page position of a page image of electronic book content displayed on the display screen, a contact detection unit, a contact range calculation unit and a movement state calculation unit that detect a page turning manipulation for the page image in a manipulation position on the display screen, and a vibration control unit that performs control to vibrate the vibration generation element corresponding to the manipulation position at a strength corresponding to the page position of the page image when the page turning manipulation is detected.. . ... Ntt Docomo Inc

03/05/15 / #20150061966

Reflectarray and design method

A reflectarray reflects an incident wave in a desired direction. The reflectarray includes a substrate including a surface which is perpendicular to a predetermined axis; and at least first and second element groups, wherein the first and second element groups are disposed on the substrate, and include elements that reflect a radio wave. ... Ntt Docomo Inc

02/26/15 / #20150058740

Remote control system, remote control method, communication device, and program

A remote control system including a relay device capable of moving around a space where an appliance to be controlled is installed, and a communication device that is operated by a user, and communicates with the relay device. The relay device is controlled by the communication device, and includes an imaging unit, a sending unit that sends a captured image to the communication device, and a sending unit that wirelessly sends an instruction signal to the appliance to be controlled. ... Ntt Docomo Inc

02/26/15 / #20150055556

Radio base station and mobile station

A system and method for ca and “tti bundling” together in an efficient manner is disclosed. A radio base station (enb#1) includes a control unit configured such that when a mobile station ue performing ca using pcc and scc is set to transmit same information across multiple sub-frames in pcc (that is when “tti bundling” is established), the control unit determines whether or not to delete scc, based on simultaneous transmission capability information of the mobile station ue.. ... Ntt Docomo Inc

02/26/15 / #20150055531

Radio communication system, user apparatus, base station, network, and communication control method

A user apparatus includes a radio communication unit capable of operating in a continuous reception mode in which receiving operations to receive control signals are continuously executed and in a discontinuous reception mode in which the receiving operations are discontinuously executed and an application running unit capable of running multiple applications in parallel. A radio communication system includes a communication frequency characteristic acquiring unit that acquires, for each of the applications, a communication frequency characteristic related to communication that each of the applications run in the user apparatus executes and a bearer decision unit that decides, for each of the applications, a bearer to be used for the communication of each of the applications according to the communication frequency characteristic of each of the applications.. ... Ntt Docomo Inc

02/19/15 / #20150051904

Audio decoding device, audio coding device, audio decoding method, audio coding method, audio decoding program, and audio coding program

An objective of the present invention is to correct a temporal envelope shape of a decoded signal with a small information volume and to reduce perceptible distortions. An audio decoding device which decodes a coded audio signal and outputs an audio signal comprises: a coded series analysis unit that analyzes a coded series which contains the coded audio signal; an audio decoding unit that receives from the coded series analysis unit the coded series which contains the coded audio signal and decodes same, obtaining an audio signal; a temporal envelope shape establishment unit that receives information from the coded series analysis unit and/or the audio decoding unit, and, on the basis of the information, establishes a temporal envelope shape of the decoded audio signal; and a temporal envelope correction unit that, on the basis of the temporal envelope shape which is established with the temporal envelope shape establishment unit, corrects the temporal envelope shape of the decoded audio signal and outputs same.. ... Ntt Docomo Inc

02/19/15 / #20150049699

Communication system, base station apparatus, mobile terminal apparatus and communication method

The present invention is designed to trigger a pusch dynamically or periodically in an s-cell upon carrier aggregation in a hetnet and transmit uci efficiently. In the communication system of the present invention, a mobile terminal apparatus reserves physical uplink shared channel resources in a second carrier by higher layer signaling, and transmits uplink control information combining ack/nack for a physical downlink shared data channel allocated by a downlink scheduling assignment and a cqi report triggered by the downlink scheduling assignment, to a second base station apparatus, using one of the reserved physical uplink shared channel resources.. ... Ntt Docomo Inc

02/12/15 / #20150045085

Radio communication method, local area base station apparatus, mobile terminal apparatus and radio communication system

A method for making the uplink and downlink coverages in a local area symmetrical by executing transmission power control in the downlink of a local area in hetnet is disclosed. A radio communication method is provided in which a local area base station apparatus, arranged in a wide area where a first carrier frequency is used and forming a local area that is narrower than the wide area, transmits a downlink signal, using a second carrier frequency, which belongs to a different frequency band from the first carrier frequency and which has a wider bandwidth than the first carrier frequency, the local area base station apparatus transmits a detection signal that is used to detect the local area base station apparatus in the mobile terminal apparatus, and the local area base station apparatus transmits the downlink signal for the mobile terminal apparatus with transmission power that is determined.. ... Ntt Docomo Inc

02/12/15 / #20150045084

Radio communication system, base station, and communication control method

Downlink reception power from a second base station is adjusted upward using a cell range expansion offset value. Based on the downlink reception power, a connection destination base station for a user device is selected. ... Ntt Docomo Inc

02/12/15 / #20150043543

Radio base station

In a radio base station (enb), a reception unit calculates “tamacro” on the basis of a propagation delay (tpd,macro) in a cell (#1), which is a temporal difference between a transmission timing of a first uplink signal at a mobile station (ue#1) and a reception timing of the first uplink signal at the radio base station (enb). A transmission unit is configured to transmit, as “tapico”, a sum of the “tapico” and “dl/ul offsetpico” that is an offset value between a propagation delay (tpd,pico) in a cell (#11) and the propagation delay (tpd,macro) in the cell (#1). ... Ntt Docomo Inc

02/12/15 / #20150043477

Radio communication system, user terminal, radio base station apparatus and radio communication method

The present invention is designed to suitably feed back each comp cell's channel state information when comp transmission is applied. In a radio communication system providing a plurality of radio base station apparatuses and a user terminal that is configured to be able to perform coordinated multiple-point transmission/reception with the plurality of radio base station apparatuses, the user terminal has an acquiring section that acquires channel state information of each of multiple cells, a generating section that generates feedback information such that at least part of the acquired channel state information of the multiple cells is combined and transmitted in the same subframe, and a transmission section that periodically feeds back the generated feedback information to a radio base station apparatus, which is one of multiple coordinated points, using a physical uplink control channel, and the radio base station apparatus has an updating section that updates the channel state information using the channel state information that is fed back from the user terminal.. ... Ntt Docomo Inc

02/12/15 / #20150043476

Radio communication system, radio base station apparatus, user terminal and radio resource allocation method

The present invention is designed to provide a radio communication system, a radio base station apparatus, a user terminal and a radio resource allocation method that cope with the increase of the number of users. A radio base station apparatus is provided with a scheduling section (310) that selects a radio resource for a pucch corresponding to a pdcch that is multiplexed over a control region in a subframe and an enhanced pdcch that is frequency-division-multiplexed with a downlink data signal over a data region in the subframe, and a transmission section that transmits a pdcch signal and an enhanced pdcch signal to a user terminal with information that can identify the radio resource for the pucch selected in this scheduling section (310). ... Ntt Docomo Inc

02/12/15 / #20150043474

Radio base station apparatus, user terminal, radio communication system and radio communication method

The present invention is designed to provide demodulation reference signals that are suitable for an extended downlink control channel. The radio base station apparatus of the present invention has a multiplication section that multiplies downlink control information allocated to an extended downlink control channel resource region in a resource block, by a user terminal-specific weight, and a reporting section that reports one group, among a plurality of groups that are configured by selecting varying antenna ports from a plurality of antenna ports corresponding to the number of transmission layers of a demodulation reference signal, to the user terminal, and in each group, the extended downlink control channel resource regions in the resource block and the antenna ports to constitute the group are associated with each other, and the multiplication section multiplies a demodulation reference signal corresponding to an antenna port in the one group that is associated with the extended downlink control channel resource regions where the downlink control information is allocated, by the weight.. ... Ntt Docomo Inc

02/12/15 / #20150043405

User equipment and discontinuous reception control method in mobile communication system

User equipment that is capable of communicating by using m (m is greater than or equal to 2) component carriers (ccs) includes n (n is greater than or equal to 2) communication units for executing radio communication with a base station by using each of the m ccs, a controller for individually controlling an operation mode of each of the n communication units; and a timer for reporting to the controller that a constant time period is elapsed without receiving a further control signal, after receiving, by a communication unit of the n communication units, a control signal from the base station. When a report from the timer is received for a specific communication unit of the n communication units, the controller controls the operation mode of the specific communication unit, so that the operation mode the specific communication unit discontinuously transitions to an active mode.. ... Ntt Docomo Inc

02/12/15 / #20150043372

Radio communication method, radio base station, user terminal, and radio communication system

The present invention is designed to enable adequate channel quality measurement in a user terminal even when csi-rs transmission parameters are reported from a plurality of transmission points to the user terminal. In a radio communication method for a plurality of radio base stations and a user terminal having ability to receive a reference signal for channel state measurement from the plurality of radio base stations, the radio base station generates report information, which is formed with information that represents a transmission parameter of the reference signal, and system information that includes at least a system bandwidth of a radio base station that transmits the reference signal, and reports the generated report information to the user terminal by means of higher layer signaling, and the user terminal measures channel quality based on the received report information.. ... Ntt Docomo Inc

02/12/15 / #20150042904

Display device and mobile terminal device

This lcd module (120) includes a light guide plate disposition area (140a) where a light guide plate (141) that emits planar-like light to the back surface of an lcd panel (130) is disposed, and a light source disposition area (140b) where a plurality of light sources (143) that emit point-like light to the side of the light guide plate (141) are disposed. The light source disposition area (140b) includes a cutout (144), and the light source (143) near the cutout (144) from among the plurality of light sources (143) is disposed so that the emitted from light is guided to the light guide plate (141) located near the cutout (144). ... Ntt Docomo Inc

02/05/15 / #20150040050

Display device and program

A display device calculates an operation amount of a user's input operation based on a detected indicated position. Display device displays component images on display surface based on the operation amount calculated. ... Ntt Docomo Inc

02/05/15 / #20150038199

Portable terminal device

A portable terminal device (1) according to the present invention includes a display section (4) and a housing (10) to which the display section (4) is fixed. The housing (10) includes a housing main body (11), a first component (12), and a second component (13). ... Ntt Docomo Inc

02/05/15 / #20150038119

Communications system, mobile communications device, transition control device, transition control method, and transition control program

In order to perform sm swap efficiently, a mobile communication device that performs mobile communication includes: an attachment unit for attaching thereto an embedded subscriber identity module (esim) that stores therein an operational profile (op) and a provisioning profile (pp); a pp reception unit for receiving, through a mobile communication network associated with the op stored in the esim, the pp associated with an subscription manager (sm) corresponding to a destination mobile communication network, and storing the received pp in the esim; and an op reception unit for performing communication with the sm using the stored pp associated with the sm to receive the op associated with the mobile communication network, and storing the received op in the esim.. . ... Ntt Docomo Inc

02/05/15 / #20150036651

Radio communication terminal, base station apparatus, radio communication system and radio communication method

The present invention is designed to provide a radio communication terminal, a base station apparatus, a radio communication system and a radio communication method which can reduce the cost to be required for an mtc terminal when the lte system is employed in the network domain of a machine communication system. A radio communication terminal according to the present invention is a radio communication terminal that performs machine communication via a base station apparatus of a radio communication system that is operated such that a frequency becomes the first band at a maximum, depending on the performance which a communication device supports, and has a receiving section that has receiving performance to be able to support the first band, and that decodes the entire band of the first band at least with respect to a time domain where a downlink control channel is allocated, and a transmission section that has transmission performance to be able to support a second band having a narrower bandwidth than the first band, and that allocates an uplink control channel and an uplink data channel to the second band.. ... Ntt Docomo Inc

02/05/15 / #20150036593

Mobile station and radio base station

In order to prevent a mismatch between an hfn used by a pdcp layer on a transmitting side and an hfn used by a pdcp layer on a receiving side, and thereby to avoid a decrease in the throughput due to a failure in deciphering processing on pdcp-pdu in the pdcp layer on the receiving side. In a mobile station ue according to the present invention, a transmission unit 13 is configured to, if an hfn report trigger is detected, send a radio base station enb the hfn or count value most recently used in the deciphering processing on a pdcp-pdu.. ... Ntt Docomo Inc

02/05/15 / #20150035776

Information terminal, method for controlling input acceptance, and program for controlling input acceptance

An information terminal has: a gaze determination unit 13 for determining whether user's gaze detected by a gaze detection unit is directed toward a display; and a touch input control unit for performing such control that when the gaze is directed toward the display, an input operation on the touch panel is made acceptable and that when the gaze is not directed toward the display, the input operation on the touch panel is made unacceptable. By this, acceptance/unacceptance of input can be readily controlled, without need for a user's special operation or a lapse of a fixed period of time.. ... Ntt Docomo Inc

01/29/15 / #20150033328

Information terminal and execution control method

A portable terminal includes a touch panel including a press detection mechanism capable of accepting a press operation on an operating surface, a detection unit to detect a first operation being an operation of sliding a contact object over the operating surface of the touch panel during a period from contact to release of the contact object to/from the operating surface and a second operation being the press operation performed during the first operation through the press detection mechanism, a storage unit to store an authentication pattern composed of the first operation and the second operation, and an execution controller to control whether to execute a function of the information terminal based on a result of verification between an input pattern composed of the first operation and the second operation detected by the detection unit and the authentication pattern.. . ... Ntt Docomo Inc

01/29/15 / #20150029982

Radio communication system, base station apparatus and radio communication method

The present invention is designed to report parameters related to techniques provided for in the lte-a system to a user terminal with adequate timing. The radio communication method of the present invention provides a radio communication method in a radio communication system having a base station apparatus that is configured in compliance with lte-advanced system standards, and a user terminal that is configured to be able to perform radio communication with the base station apparatus, and, in this radio communication method, the base station apparatus generates downlink control channel information related to an enhanced physical downlink control channel, and notifies the downlink control channel information to the user terminal using an rrc connection reconfiguration signal, and the user terminal receives the rrc connection reconfiguration signal, and sets up the downlink control channel information.. ... Ntt Docomo Inc

01/29/15 / #20150029951

Radio communication system, radio base station, and mobile terminal

In a radio communication system including multiple mobile terminals and multiple radio base stations, the mobile terminal has a function of interference rejection combining. The radio base stations share downlink channel characteristics for mobile terminals connected to radio base stations. ... Ntt Docomo Inc

01/29/15 / #20150029888

Radio communication system, user terminal, radio base station apparatus and radio communication method

The present invention is designed to prevent the increase of the overhead of feedback information, and furthermore improve the accuracy of updated cqis, upon updating cqis that are given as feedback, when comp transmission is applied. The radio communication system of the present invention is formed with a plurality of radio base station apparatuses and a user terminal that is configured to be able to perform coordinated multiple-point transmission/reception with the plurality of radio base station apparatuses and, in this radio communication system, the user terminal calculates a channel quality indicator for coordinated multiple-point transmission using an interference component ratio between cells and feeds back the channel quality indicator, and the radio base station apparatus re-calculates a channel quality indicator in accordance with a transmission mode of coordinated multiple-point transmission, using the channel quality indicator fed back from the user terminal.. ... Ntt Docomo Inc

01/29/15 / #20150029883

Mobile communication method, radio base station and mobile station

In current lte, different measurement cycles of a measurement process are set for respective measurement frequencies. A mobile communication method according to the present invention includes: a step a of a radio base station enb notifying a mobile station ue of a measurement cycle for “inter-frequency measurement” for each measurement frequency; and a step b of the mobile station ue performing out a measurement process in each of cells #11a and #11b having frequencies f2 and f3 different from that of a cell #11 to which the mobile station ue is currently connected, on the basis of the measurement frequency and the measurement cycle for “inter-frequency measurement”.. ... Ntt Docomo Inc

01/22/15 / #20150026780

Host providing system and communication control method

A host providing system includes a physical host network switch which determines permission and non-permission of communication on the basis of whether or not information pieces indicating users correlated with information indicating a transmission source and information indicating a transmission destination included in communication data from a physical instance match each other, and controls the communication data on the basis of a determination result. Accordingly, since only communication between instances of the same user is permitted, and thus communication from a physical instance is appropriately controlled, it is possible to ensure security in the system.. ... Ntt Docomo Inc

01/22/15 / #20150024805

Mobile station

In order to suppress an increase in signal quantity attributed to repetition of transition to a “preservation state” and return to an “active state” when multiple applications are operated independently, a mobile station (ue) of the invention includes: a management unit (12) which manages a transmission timing for regular data not involving a user operation in each of multiple applications (#1 to #n); and a transmission unit (13) which transmits a “rrc connection request” to a radio access network when the mobile station (ue) transitions from a “preservation state” to an “active state.” the transmission unit (13) is configured to adjust a transmission timing for the “rrc connection request” based on the transmission timings for the regular data not involving the user operation in the multiple applications (#1 to #n).. . ... Ntt Docomo Inc

01/22/15 / #20150024761

Mobile communication system, communication system, control node, call-processing node, and communication control method

A mobile communication system includes a plurality of call-processing servers, a call processing management database that holds data necessary for call processing, and a network manager. The network manager comprises a node state recognition unit that recognizes states of the call-processing servers, and a control unit that determines the call-processing node that processes a call processing request based on the states. ... Ntt Docomo Inc

01/22/15 / #20150023276

Communication system, mobile station and communication method

Provided are a communication system, a mobile station and a communication method that can suppress the increase of processing loads of an ip-can accompanying trials made by mobile stations to connect to the ip-can via a wireless access network that does not support any services on the ip multimedia core network subsystem (ims). For example, a ue (100) receives, from an sgsn via the 3g, service non-supporting information indicating that the 3g does not support any services on the ip multimedia subsystem, and, when having received the service non-supporting information, stops the transmission of an activate pdp context request via the 3g.. ... Ntt Docomo Inc

01/22/15 / #20150023268

Mobile communication method, radio base station, and mobile station

An objective is to improve communication quality by reducing an insertion loss or the like of a diplexer inserted to reduce a leakage from an uplink band to a downlink band in different bands. A mobile communication method according to the present invention includes the steps of: transmitting simultaneous transmission capability information from a mobile station ue to a radio base station enb, the simultaneous transmission capability information indicating whether or not the mobile station ue can transmit uplink data signals via multiple carriers in the same sub-frame while performing uplink ca; performing scheduling for the mobile station ue by the radio base station enb on the basis of the simultaneous transmission capability information; and performing communication by the mobile station ue on the basis of the scheduling information.. ... Ntt Docomo Inc

01/22/15 / #20150023253

Mobile communication system

The present invention achieves optimal ca in terms of both mobility and throughput. In a mobile communication system according to the present invention, a cell #1/#2 in which a cc#1/cc#2 is used and a cell #11 in which a cc#11 is used are provided, a coverage area of the cell #1/#2 and a coverage area of the cell #11 are configured to geographically overlap each other, the coverage area of the cell #1/#2 is configured to be larger than the coverage area of the cell #11, and the cell #1/#2 has at least one of characteristics of: the used frequency band is high; a height of a transmission-reception antenna is high; a gain of the transmission-reception antenna is great; a directivity of the transmission-reception antenna is different; a transmission power is great; and a receiving sensitivity is great, compared to the cell #11.. ... Ntt Docomo Inc

01/22/15 / #20150022414

Reflectarray and design method

A method of designing a reflectarray including a substrate having a surface perpendicular to a predetermined axis, wherein elements are disposed on the substrate. The method obtains a reflection phase of the elements as a function of a design parameter such as element spacing, when a radio wave enters the arranged elements, and stores a relationship between the reflection phase and the design parameter in a memory. ... Ntt Docomo Inc

01/15/15 / #20150020028

Character input device and character input method

A character input device includes: a display for displaying a plurality of character candidates for an input character; a use frequency database that accumulates, for each character, a first character use frequency of use as first character and a successive use frequency of at least one character used in succession to the character; a first character extractor that extracts a highly-ranked predetermined number of frequently-used characters used frequently as first character, based on first character use frequencies of respective characters; a successive use frequency extractor that extracts, for at least one frequently-used character, the successive use frequency of at least one character used in succession to the frequently-used character; and a display controller that displays the predetermined number of frequently-used characters as arranged in a center on the display and displays the characters other than frequently-used characters as arranged around the frequently-used characters, based on the successive use frequencies.. . ... Ntt Docomo Inc

01/15/15 / #20150020022

Information terminal for displaying image and image displaying method

An information terminal including: a display configured to display an image; a captured image storage configured to store a captured image showing a state in which one or more objects are displayed; and an image control configured to cause the display to display the captured image in accordance with a scrolling operation by a user. The display displays one or more objects corresponding to a captured image at an end point of the scrolling performed by the user while superimposing the one or more objects on a background image, and, in a case at least one of a period during which or the number of times an image is displayed by the display without change of arrangement of an object displayed while being superimposed on the background image is equal to or greater than a threshold, the image storage stores a captured image corresponding to the image that is displayed.. ... Ntt Docomo Inc

01/15/15 / #20150018034

Radio communication system, user terminal, radio base station apparatus and radio communication method

The present invention is designed to prevent the decrease of throughput and also reduce the overhead of csi feedback when comp transmission is applied. In a radio communication system including a plurality of radio base station apparatuses and a user terminal that is configured to be able to carry out coordinated multiple-point transmission/reception with the plurality of radio base station apparatuses, the radio base station apparatus designates a plurality of candidate values of predetermined inter-cell channel state information and reports them to the user terminal, and the user terminal measures inter-cell channel state information of each cell, and also selects a specific candidate value that is close to the measurement value of inter-cell channel state information from the plurality of candidate values that have been reported, and feeds back the specific candidate value to the radio base station apparatus.. ... Ntt Docomo Inc

01/15/15 / #20150017993

Method and apparatus at the physical and link layer for mobile communications

In a telecommunications network, a system to offload data traffic from base stations to small node devices includes a small node device. The small node device includes a macro-base-station-to-small-node-device (bs2d) communication section in communication with a source base station through a first link, and a small-node-device-to-user-equipment (d2ue) communication section in wireless communication with a mobile station through a fourth link. ... Ntt Docomo Inc

01/15/15 / #20150017974

Mobile station and radio base station

Avoided is hasty control occurring due to repetition of transition to a “preservation state” and return to an “active state.” a mobile station ue according to the present invention includes: a transmission unit 13 configured to transmit “signalling connection release indication” commanding release of signalling connection to a radio access network upon detecting that there is no more data to be transmitted; and a determination unit 12 configured to determine whether the mobile station ue is in a particular state or not. The transmission unit 13 is configured to keep the “signalling connection release indication” from being transmitted to the radio access network if the determination unit 12 determines that the mobile station ue is in the particular state, even when the transmission unit 13 detects that there is no more data to be transmitted.. ... Ntt Docomo Inc

01/15/15 / #20150017970

Radio base station apparatus, radio base station controller, and transition control method

A radio base station apparatus includes a count retrieval unit configured to retrieve a call origination/reception count and a handover count within a predetermined time interval, an idle transition timer value controller configured to adjust an idle transition timer value representing a time period from completion of communication with a mobile station until the mobile station is caused to transition to an idle mode based on the retrieved call origination/termination count and the retrieved handover count, and an idle transition controller configured to cause the mobile station to transition to the idle mode based on the adjusted idle transition timer value.. . ... Ntt Docomo Inc

01/15/15 / #20150016380

Mobile station and communication method

A mobile station and a communication method are provided, which are capable of preventing a state where no incoming calls can be received from continuing for a long time even if an ip-can bearer, which is a logical communication path used for sip and audio media, is removed for some reason. Ue 100 is connectable to an access network complying with the internet protocol and executes registration with an ip multimedia subsystem complying with the internet protocol. ... Ntt Docomo Inc

01/15/15 / #20150016372

Radio base station and mobile station

A mobile station ue according to the present invention includes a controller unit 22. When “1” is set in “r” in the “activation/deactivation mac control element”, the controller unit 22 activates only an uplink in a scell corresponding to “ci” set to “1”, and deactivates only the uplink in a scell corresponding to “ci” set to “0”.. ... Ntt Docomo Inc

01/15/15 / #20150016370

Radio base station apparatus, user terminal, radio communication system and radio communication method

The present invention is designed to allocate radio resources for an extended control channel adequately in a configuration in which a downlink control channel is extended. A radio base station apparatus according to the present invention has a mapping section configured to separate and map, per predetermined frequency domain unit constituting a system band, a common search space, which is a candidate region to arrange common control information that is common between user terminals in, and a ue-specific search space, which is a candidate region to arrange specific control information that is specific to each user terminal in, and a transmission section configured to frequency-division-multiplex with a downlink shared data channel and transmit an extended downlink control channel, in which the common control information is arranged in the common search space and in which the specific control information is arranged in the ue-specific search space, and the mapping section maps the common search space to a plurality of frequency domain units such that the common search space is distributed in the system band.. ... Ntt Docomo Inc

01/15/15 / #20150015455

Reflectarray and design method

A reflectarray reflects an incident wave in a desired direction. The reflectarray includes a substrate including a surface which is perpendicular to a predetermined axis, and elements disposed on the substrate. ... Ntt Docomo Inc

01/08/15 / #20150011252

Mobile station and radio base station

To suppress increase in the amount of signals due to repetition of transition to a “preservation state” and return to an “active state,” a mobile station ue according to the present invention includes: a receiving unit 13 configured to receive access restriction information against communication satisfying a predetermined condition during the “preservation state,” from a radio access network; and a transmitting unit 12 configured to transmit an “rrc connection request” to the radio access network in a case where the mobile station ue transitions from the “preservation state” to the “active state.” the transmitting unit 12 is configured to decide whether or not to transmit an “rrc connection request” for the communication satisfying the predetermined condition, on the basis of the access restriction information.. . ... Ntt Docomo Inc

01/08/15 / #20150011217

Mobile communication system

Appropriate performance is required for “inter-frequency measurement” in accordance with the conditions of a cell to be subjected to “inter-frequency measurement”. A mobile communication system according to the present invention is configured to separately specify the performance required for “inter-frequency measurement” to be used in “inter-frequency handover” control between macrocells #11 and #12 and the performance required for “inter-frequency handover” to the cell #11b which is not set as an scell within the coverage area of the macrocell #11.. ... Ntt Docomo Inc

01/08/15 / #20150011205

Communication system, mobility management entity, base station, and communication method

Upon detecting an opportunity to release e-rabs related to mobile stations, a mobility management entity transmits a single e-rab release information message that collectively specifies e-rabs to be released to a base station communicating with the mobile stations. Subsequently, upon receiving the e-rab release information message, the base station transmits a single e-rab release information acknowledge message to the mobility management entity. ... Ntt Docomo Inc

01/08/15 / #20150009959

Radio base station and mobile station

Provided is a radio base station and a mobile station capable of reducing a handover delay while avoiding an increase of a load on the c-plane even in a case where the kind of the pdcp-sn used within a cell after the handover is changed. A radio base station enb according to the present invention includes a transmission unit configured to notify a mobile station ue that the length of the pdcp-sn used in communication within the first cell (or the second cell) is changed in a case where the mobile station ue performs a handover from the second cell to the first cell (or in a case where the mobile station ue performs a handover from the first cell to the second cell).. ... Ntt Docomo Inc

01/08/15 / #20150009934

Mobile communication system, communication system, node, flow-control network, and communication-control method

A mobile communication system includes an openflow network and cscfs. A first cscf comprises a terminal information assigning unit that assigns information of an incoming terminal of a destination of a signal accommodated in a second cscf to a header part of a signal destined for the second cscf. ... Ntt Docomo Inc

01/08/15 / #20150009911

Mobile communication method, wireless base station and mobile station

The embodiments of the present invention provide a mobile communication method, a wireless base station and a mobile station. The mobile communication method according to the embodiment of the present invention is applied to the wireless base station. ... Ntt Docomo Inc

01/08/15 / #20150009848

Radio communication system, base station, user terminal, and communication control method

A user terminal reports a group radio quality of each of radio resource groups to a base station at a first frequence. The base station reports an allocated radio resource group to be allocated for radio communication with the user terminal to the user terminal. ... Ntt Docomo Inc

01/01/15 / #20150007281

Information-processing device, service-providing system, service-providing method, and computer program

Information-processing device transmits biological information not being encrypted in association with an application id to information delivery server device, and transmits encrypted biological information in association with a user id to backup server device. Advisory terminal accepts an input of advice according to a user data set stored in information delivery server device. ... Ntt Docomo Inc

01/01/15 / #20150004990

Mobile station and radio base station

Even when the same c-rnti is assigned to multiple mobile stations in a phantom cell, collision of the mobile stations to the same c-rnti is assigned is avoided with simple implementation. A mobile station includes: a reception unit configured to acquire c-rntis set for other mobile stations ue not via a radio base station; and a transmission unit configured to give the radio base station a predetermined report when there is a mobile station ue set to have the same c-rnti #x as a c-rnti #x set for itself.. ... Ntt Docomo Inc

01/01/15 / #20150004976

Base station, network device, and communication control method

An enb 110 includes an ho activation metric acquisition unit 111 which acquires a metric indicating a state of a voice call to be processed through the enb 110, a mobile station state acquisition unit 112 which acquires a state of a mobile station processing the voice call, and an ho processing unit 113 which transmits a handover instruction, instructing a handover of the mobile station to a 3g system, to the mobile station when a value of the metric acquired by the ho activation metric acquisition unit 111 exceeds a predetermined threshold and when the state of the mobile station acquired by the mobile station state acquisition unit 112 satisfies a predetermined condition.. . ... Ntt Docomo Inc

01/01/15 / #20150003354

Mobile station

An object is to increase opportunities for starting “inter-band ca”. A mobile station ue of the present invention includes a transmission unit 14 configured to postpone transmission of a random access preamble in a cell #2 when the mobile station ue in a “rrc_connected state” in a cell #1 detects a start trigger of a random access procedure in the cell #2, and determines that an uplink signal is being transmitted in the cell #1. ... Ntt Docomo Inc

01/01/15 / #20150003348

Extension carrier discovery for carrier aggregation

Two alternative embodiments are disclosed to enable a user equipment to efficiently discover small cells using a secondary carrier. The user equipment has a primary carrier link to a base station. ... Ntt Docomo Inc

01/01/15 / #20150003254

Radio communication system and base station

A radio communication system includes at least one user equipment, base stations, and a control station. After expiration of the timer started after establishment of the data bearer, the base station selects the access point base station for the user equipment on the basis of the voice congestion levels and indicates the access point base station to the user equipment if the voice bearer has been established, and selects the access point base station for the user equipment on the basis of the data congestion levels and indicates the access point base station to the user equipment if the voice bearer has not been established.. ... Ntt Docomo Inc








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