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Ntt Docomo Inc
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Ntt Docomo Inc patents


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.

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 new patent  User terminal, radio base station and radio communication method

The present invention is designed so that uplink control signals can be transmitted adequately even when the number of component carriers that can be configured in a user terminal is expanded. A user terminal can communicate by using six or more component carriers, and has a receive receiving section that... Ntt Docomo Inc

 new patent  User equipment, base station, information reporting method, and information receiving method

There is provided user equipment for communicating with a base station in a radio communication system supporting carrier aggregation, the user equipment including a generator that generates band combination information indicating one or more band combinations capable of being used for the carrier aggregation in the user equipment; and a... Ntt Docomo Inc

 new patent  User terminal, radio base station, and radio communication method

The present invention is designed to allow adequate communication even when the number of CCs that can be configured in a user terminal is expanded from that of existing systems and/or when CA is executed using unlicensed CCs. A user terminal communicates with a radio base station by means of... Ntt Docomo Inc

 new patent  Radio base station, user terminal and radio communication method

The present invention is designed to optimize the RRM measurements in a carrier where an LBT function is applied. A radio base station executes LBT (Listen Before Talk) in an unlicensed carrier, acquires an LBT result, determines the timing to measure a DRS (Discovery Reference Signal) that is transmitted in... Ntt Docomo Inc

Image prediction encoding/decoding system

An encoding target region in an image can be partitioned into a plurality of prediction regions. Based on prediction information of a neighboring region neighboring a target region, the number of previously-encoded prediction regions in the target region, and previously-encoded prediction information of the target region, a candidate for motion... Ntt Docomo Inc

User terminal, radio base station and radio communication method

The present invention is designed to measure and/or report CSI (Channel State Information) of a plurality of narrow bands, even when the band to use is limited to a partial narrow band in a system band. According to one aspect of the present invention, a user terminal, in which the... Ntt Docomo Inc

User terminal, radio base station and radio communication method

The present invention is designed so that communication can be carried out adequately even when the bandwidth to use is limited to partial reduced bandwidths in a system bandwidth. According to an example of the present invention, a user terminal, in which the bandwidth to use is limited to a... Ntt Docomo Inc

User terminal, radio base station and radio communication method

The present invention is designed so that cross-carrier scheduling is carried out adequately even when the number of component carriers that can be configured in a user terminal is expanded compared to that of existing systems. A user terminal can communicate by using six or more component carriers, and has... Ntt Docomo Inc

Information processing device, calorie management system, caloric balance estimation method, and program

A calculation device is provided with: an acquisition unit that acquires an acetone concentration in a gas constituent discharged from a user and measured; an estimation unit that estimates a calorie balance corresponding to the acetone concentration acquired by the acquisition unit based on a predetermined correlative relationship between acetone... Ntt Docomo Inc

Mobility management switching center, communication system, and communication control method

A mobility management switching center is for communicating with user equipment of a communication system that supports LTE or 3G, the mobility management switching center including a receiver that receives a session management signal from the user equipment; and a transmitter that transmits, when the session management signal is received,... Ntt Docomo Inc

User terminal and radio communication method

The present invention is designed so that broadcast information is transmitted and received adequately even when the bandwidth to use is limited to partial reduced bandwidths in a system bandwidth and the broadcast information is transmitted and received in repetitions over multiple subframes. A user terminal, in which the bandwidth... Ntt Docomo Inc

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

A channel state is adequately reported even if the number of component carriers configurable to a user terminal is expanded to six or more. The user terminal for communicating with a radio base station by use of six or more component carriers includes a measuring section configured to measure reception... Ntt Docomo Inc

Resource management in cloud systems

A method for waking up one or more sleeping small cell base stations in a wireless communication system for serving a user equipment is described. The wireless communication system includes a plurality of small cell base stations and one or more macro base stations. A wake up signal configuration is... Ntt Docomo Inc

Radio base station, user terminal and radio communication method

The present invention is designed so that the decrease of spectral efficiency can be reduced even when coverage enhancement is attempted in communication by user terminals in which the bandwidth to use is limited to partial reduced bandwidths in a system bandwidth. A radio base station communicates with a user... Ntt Docomo Inc

Radio base station, user terminal and radio communication method

The present invention is designed to improve spectral efficiency in a system that runs LTE/LTE-A by using a carrier in which LBT (Listen Before Talk) is configured. One aspect of the present invention provides a radio base station in a radio communication system where the radio base station and a... Ntt Docomo Inc

User terminal, radio base station and radio communication method

The present invention is designed so that communication can be carried out adequately even when the bandwidth to use is limited to partial reduced bandwidths in a system bandwidth. A user terminal, in which the bandwidth to use is limited to partial reduced bandwidths in a system bandwidth, has a... Ntt Docomo Inc

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

A radio communication method for a user terminal performing communication in a cell where DL transmission and UL transmission vary in a time direction is provided. The radio communication method includes receiving downlink control information transmitted in a specific subframe; and analyzing a number and/or positions of subframes to be... Ntt Docomo Inc

User equipment and base station

Control techniques of broadcast information reception operations at user equipment having coverage enhancement functionalities are disclosed. One aspect of the present invention relates to user equipment, comprising: a transmission and reception unit configured to transmit and receive radio signals to/from a base station; and a broadcast information combination unit configured... Ntt Docomo Inc

User terminal, radio base station and radio communication method

The present invention is designed so that communication can be performed adequately even when the number of component carriers (CCs) that can be configured in a user terminal is expanded and/or when CA is executed using unlicensed CCs. A user terminal communicates with a radio base station using carrier aggregation,... Ntt Docomo Inc

User terminal, radio base station and radio communication method

The present invention is designed so that communication is carried out adequately even when the number of component carriers that can be configured in the user terminal is increased compared to that of existing systems. According to one aspect of the present invention, a user terminal can communicate by using... Ntt Docomo Inc

User terminal, radio base station and radio communication method

The present invention is designed so that the efficiency of use of UL resources is prevented from decreasing even when the band to use is limited to partial narrow bands in the system band. According to one aspect of the present invention, a user terminal, in which the band to... Ntt Docomo Inc

User apparatus and cell control method

A user apparatus performing communications with a base station in a mobile communication system which supports carrier aggregation is provided. The user apparatus includes a processing unit configured to receive from the base station an instruction for adding one or more sub cells associated with a specific secondary cell group;... Ntt Docomo Inc

User apparatus and resource selection method

A user apparatus for use in a mobile communication system that supports D2D communication, including: a signal transmission unit configured to transmit a plurality of D2D signals; and a resource selection unit configured to select, from a predetermined resource pool, a radio resource having a time resource and a frequency... Ntt Docomo Inc

User terminal, radio base station and radio communication method

The present invention is designed to optimize the uplink access procedure even when the band to use is limited to partial narrow bands in a system band. A user terminal, in which the band to use is limited to a partial narrow band in a system band, has a receiving... Ntt Docomo Inc

User equipment, feedback control method, and retransmission control method

User equipment to be used as receiving user equipment in a mobile communication system supporting D2D communication, the user equipment includes a feedback unit that receives a D2D signal from transmitting user equipment, and that transmits, to the transmitting user equipment, a feedback signal with respect to the D2D signal... Ntt Docomo Inc

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... Ntt Docomo Inc

Information communication terminal, peripheral device cooperation method, and program

An information communication terminal includes; a reception unit configured to receive setting values of notification setting for plural connected peripheral devices; a peripheral device setting storage unit configured to store the received setting values of notification setting for the plural peripheral devices; a service application setting storage unit configured to... Ntt Docomo Inc

User terminal, radio base station and radio communication method

The present invention is designed so that it is possible to reduce the measurement-induced increase of load and power consumption in user terminals even when the number of component carriers that can be configured per user terminal is expanded. A user terminal communicates with a radio base station that configures... Ntt Docomo Inc

Base station and user equipment

Schemes for configuring a longer DRX cycle for user equipment are disclosed. One aspect of the present invention relates to a base station, comprising: a communication control unit configured to control radio communication with user equipment; and a DRX control unit configured to control discontinuous reception (DRX) by the user... Ntt Docomo Inc

System and program

Estimating unit estimates an alarm notification time. Presenting unit presents the estimated alarm notification time to a user. Setting unit sets an alarm notification time based on a user's operation performed relative to the presentation of the estimated alarm notification time. When doing so, setting unit, on detecting that presenting... Ntt Docomo Inc

Display control device and program

Selection unit selects any one of a plurality of images. Display controller displays preview information of content (information representing the content detail) corresponding to an image selected from among the any one of the plurality of images by selection unit. Display controller changes the preview information of the content corresponding... Ntt Docomo Inc

Gateway apparatus and communication method

A gateway apparatus provided between a radio base station in a mobile communication network and a terminal apparatus, including: notification means configured to notify a proxy apparatus, connected to the mobile communication network as an external apparatus, of information indicating that the gateway apparatus is activated; and storing control means... Ntt Docomo Inc

Paging control method, communication control apparatus and base station

A paging control method in a mobile communication system including a base station and a communication control apparatus, including: an instruction step in which, in a state where a connection between the base station and the communication control apparatus is established, the base station transmits a connection maintaining instruction signal... Ntt Docomo Inc

Uplink interference reduction method, and base station

An uplink interference reduction method executed in a radio communication system which includes a connected base station, and an interference base station to which an interference user apparatus transmitting an interference signal with respect to the connected base station is connected, includes control information transmission step, transmitting to the connected... Ntt Docomo Inc

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

An object is to enable proper operation of extended carrier aggregation that can allocate at least six component carriers to each user terminal. Provided is a user terminal that communicates with a radio base station that configures a plurality of cell groups each of which including one or more cells.... Ntt Docomo Inc

11/09/17 / #20170325215

User terminal, radio base station and radio communication method

The present invention is designed so as to carry out the listening operation that accompanies UL transmission and/or UL transmission adequately when UL transmission is controlled based on the result of listening. The present invention provides a transmission section that transmits an uplink shared channel, an uplink control channel and... Ntt Docomo Inc

11/09/17 / #20170325243

User equipment apparatus and d2d communication method

A user equipment apparatus for supporting D2D (user equipment-to-user equipment) communication includes a generation unit configured to generate information about at least one of a transmission resource which can be used by the user equipment apparatus to transmit a D2D signal and a reception resource which can be used by... Ntt Docomo Inc

11/02/17 / #20170318551

User equipment apparatus and d2d synchronization signal transmission method

A user equipment apparatus for supporting D2D (user equipment-to-user equipment) communication, the user equipment apparatus being situated in coverage of a base station, including a control unit configured to determine a transmission duration for which a D2D synchronization signal is transmitted according to a parameter related to transmission of the... Ntt Docomo Inc

10/26/17 / #20170310434

User terminal, radio base station and radio communication method

A user terminal according to one aspect, can communicate with a radio base station by using a carrier where LBT (Listen Before Talk) is configured, and has a receiving section that receives downlink data that is transmitted based on an LBT result in a specific subframe that includes an LBT... Ntt Docomo Inc

10/26/17 / #20170311151

Mobile communication system, communication control device, mobility management entity, and mobile communication method

A Home Subscriber Server (HSS) determines whether roaming of voice communication via an IP Multimedia Subsystem (IMS) is supported in the Visited Public Land Mobile Network (VPLMN) or not, and transmits to a mobility management entity (MME) a signal that includes a ‘voice supported’ or ‘voice not supported’ indicator that... Ntt Docomo Inc

10/26/17 / #20170311201

Base station

A base station is provided. The base station is used as a first base station in a mobile communication system including the first base station, a second base station communicating with the first base station, and a user apparatus communicating with the first base station. The base station includes a... Ntt Docomo Inc

10/26/17 / #20170311321

Base station and user equipment

Techniques for implementing MIMO communication in accordance with reciprocity based precoding are provided. The present disclosure relates to a base station for implementing multi-antenna transmission that includes a communication control unit configured to control multi-antenna transmission with user equipment and a channel state estimation unit configured to estimate a channel... Ntt Docomo Inc

10/19/17 / #20170301363

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... Ntt Docomo Inc

10/19/17 / #20170302345

User equipment and base station

User equipment for implementing 3D MIMO (3-Dimensional Multiple-Input Multiple-Output) communication includes: a transmission and reception unit configured to transmit and receive radio signals to/from a base station in the 3D MIMO communication; and a codebook management unit configured to have a first codebook and a second codebook. The codebook management... Ntt Docomo Inc

10/19/17 / #20170303170

User equipment

Techniques are disclosed for avoiding reduction in throughput due to redundant transmission of downlink packets when a split bearer is deleted. A user equipment includes a transmission and reception unit to communicate with a master base station and a secondary base station simultaneously in dual connectivity; an RLC (Radio Link... Ntt Docomo Inc

10/19/17 / #20170303182

User apparatus, and uplink transmission switching method

A user apparatus which performs communications with one or more base stations in a communication system which supports carrier aggregation is provided. The user apparatus includes a control unit configured to select a specific cell or a specific cell group as a reference of an uplink transmission carrier switching timing,... Ntt Docomo Inc

10/19/17 / #20170303211

User terminal, radio base station, and radio communication method

According to the present disclosure, in dual connectivity, a radio base station can appropriately discern whether a user terminal has dropped the SRS, and can appropriately discern power scaling. A user terminal configured to carry out communication, using dual connectivity, with a first radio base station that configures a first... Ntt Docomo Inc

10/19/17 / #20170303212

User terminal, radio communication method and radio communication system

A user terminal that communicates using a plurality of CGs (Cell Groups) including a first CG and a second CG, includes a PHY layer processing section that controls transmission power of a PRACH (Physical Random Access Channel) in each CG; and a MAC layer processing section that controls retransmission of... Ntt Docomo Inc

10/19/17 / #20170303247

User apparatus, and control channel reception method

A user apparatus configured to perform communication with a base station in a mobile communication system, wherein a common search space and a user specific search space are multiplexed in a predetermined physical downlink control channel transmitted from the base station, the user apparatus including: a monitoring control unit configured... Ntt Docomo Inc

10/12/17 / #20170294943

Radio transmitting station

A radio transmitting station includes: multiple transmitting antenna elements configured to transform electrical signals into radio waves and emit the radio waves; a precoder configured to control a beam direction of the radio waves to be emitted from the multiple transmitting antenna elements by giving precoding weights to the electrical... Ntt Docomo Inc

10/12/17 / #20170294977

User apparatus, and cell measurement method

A user apparatus configured to communicate with a base station in a mobile communication system that supports carrier aggregation, including: a management unit configured to receive, from the base station, a configuration message for adding a cell or a cell group in the carrier aggregation, and perform configuration of the... Ntt Docomo Inc

10/12/17 / #20170295568

User terminal, radio communication system and radio communication method

The present invention is directed to dual connectivity, in which a control for synchronous dual connectivity and a control for asynchronous dual connectivity are appropriately applied. In a user terminal which communicates with a plurality of cell groups, respectively including one or more cells which utilize different frequencies, based on... Ntt Docomo Inc

10/12/17 / #20170295584

Base station and user equipment

Techniques for controlling a transport block size to implement HARQ sharing are disclosed. One aspect of the present invention relates to a base station, comprising: a cell management unit configured to manage cells for radio communication with user equipment; and a MAC processing unit configured to control a retransmission operation... Ntt Docomo Inc

10/05/17 / #20170288758

Base station and user equipment

Some techniques for implementing estimation of channel states with high accuracy and efficient feedback of the channel states in 3D MIMO are disclosed. One aspect of the present invention relates to user equipment for implementing 3D MIMO (3-Dimensional Multiple-Input Multiple-Output) communication, comprising: a channel state information generation unit configured to... Ntt Docomo Inc

10/05/17 / #20170288793

Radio relay station

A radio relay station is arranged on a moving conveyance. The radio relay station receives downlink radio signals from a stationary base station fixed outside the conveyance, and transmits to destination user equipments in the conveyance downlink radio signals resulting from the downlink radio signals transmitted from the stationary base... Ntt Docomo Inc

10/05/17 / #20170289871

Base station and data transfer method

A base station in a master cell group configured to establish a bearer to a mobile station together with a base station in a secondary cell group for communication includes a data transfer instruction unit configured to transmit to the base station in the secondary cell group an instruction on... Ntt Docomo Inc

10/05/17 / #20170290017

User terminal, radio base station, and radio communication method

According to the present invention, in an LTE system, communication can appropriately carried out even in the case where a bandwidth utilized in the transmission/receiving of data signals and control signals is configured narrower than the system bandwidth. According to an embodiment, a user terminal is configured to carry out... Ntt Docomo Inc

09/28/17 / #20170280447

User apparatus and buffer control method

A user apparatus communicates with a base station in a mobile communication system which includes cells including a first cell and a second cell which uses a TTI different from that of the first cell, includes a reception unit with a buffer for, in the case where decoding of downlink... Ntt Docomo Inc

09/28/17 / #20170280448

User terminal, radio base station and radio communication method

In order to prevent deterioration in communication quality even when LBT applies to UL transmission, the present invention provides a user terminal that has: a transmission section that transmits a transmission acknowledgement signal for a DL (downlink) data signal transmitted from a radio base station; and a control section that... Ntt Docomo Inc

09/28/17 / #20170280468

User terminal, radio base station and radio communication method

In order to minimize reduction of the usage efficiency of radio resources even when a radio base station performs LBT in an LTE/LTE-A operating system, the present invention provides a user terminal capable of communicating with a radio base station of a given operator using an unlicensed band. The user... Ntt Docomo Inc

09/21/17 / #20170272139

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

A user terminal includes a receiving section that receives a signal subjected to multiplexing in a power dimension in a given layer and that receives information about the multiplexing in the power dimension; and a signal processing section that demodulates a signal for the user terminal from the multiplexed signal... Ntt Docomo Inc

09/21/17 / #20170272364

Enhanced local access in mobile communications using small node devices

A network device in a wireless communication system includes a first communication circuit that receives a first control-plane message from a base station (BS) over a first communication link; a second communication circuit that transmits user-plane data to a user equipment (UE) over a second communication link established responsive to... Ntt Docomo Inc

09/21/17 / #20170272926

Mobile communication system, communication control device, mobility management entity, and mobile communication method

The disclosure provides a mobile communication system, a communication control device, a mobility management entity, and a mobile communication method which can avoid a failure in making an emergency call via an IMS when a mobile station connects to a VPLMN. An HSS 100 judges whether or not an emergency... Ntt Docomo Inc

09/21/17 / #20170272975

User apparatus and base station

A user apparatus is provided. The user apparatus is included in a mobile communication system including a first base station, a second base station communicating with the first base station, and the user apparatus communicating with the first base station. The user apparatus includes an obtaining unit configured to obtain... Ntt Docomo Inc

09/21/17 / #20170273037

User apparatus, base station, and uplink transmission power reporting method

A user apparatus in a mobile communication system that includes a first and second base station that perform communication with the user apparatus by inter-base station carrier aggregation. The user apparatus includes a setting information reception unit that receives, from the first base station, first setting information for instructing whether... Ntt Docomo Inc

Patent Packs
09/14/17 / #20170263036

User interface device, program, and notifying content

A user interface device according to the present invention includes: acquisition unit acquisition unit that acquires content to be notified by a character image, the character image interacting with a user when the character image is displayed on a screen; display control unit that displays on the screen the character... Ntt Docomo Inc

09/14/17 / #20170264398

Terminal and communication system

There is provided a terminal for communicating with a base station apparatus, the terminal including a receiver that receives, from the base station apparatus, instruction information for performing an operation of an error correction process to be executed between the base station apparatus and the terminal, the instruction information including... Ntt Docomo Inc

09/14/17 / #20170265095

User terminal, radio communication system and radio communication method

In order to measure and report reception quality appropriately in a radio communication system (LAA system) supporting LBT with an unlicensed band, the present invention provides a user terminal capable of communicating with a radio base station using a first frequency carrier configured with LBT (Listen Before Talk). The user... Ntt Docomo Inc

09/14/17 / #20170265145

Base station, user equipment, and radio communication system

For each UE, a base station determines the number of streams for transmitting a data signal, performs different precoding on the data signal depending on the UE, and allocates different transmission powers to at least two UEs. The base station transmits streams addressed to the at least two UEs in... Ntt Docomo Inc

09/14/17 / #20170265207

User terminal, radio base station and radio communication method

The present invention is designed to control UL communication and DL communication flexibly and improve the throughput and the quality of communication in radio communication. The present invention provides a transmission section that transmits uplink data by using an uplink shared channel, a receiving section that receives downlink control information... Ntt Docomo Inc

09/14/17 / #20170265225

User terminal, radio base station and radio communication method

The present invention is designed to prevent producing interference with UL signals even when a user terminal caries out LBT in a system in which LTE/LTE-A is run in an unlicensed band. A user terminal according to one aspect of the present invention provides a user terminal that can communicate... Ntt Docomo Inc

09/07/17 / #20170257640

Image predict coding method, image predict coding device, image predict coding program, image predict decoding method, image predict decoding device, and image predict decoding program

A predictive coding system performs predictive encoding by determination of an optimum prediction mode from prediction methods for a pixel signal of a target block. A predicted signal is generated according to the determined mode, and a residual signal is determined. The residual signal and the optimum prediction mode are... Ntt Docomo Inc

09/07/17 / #20170257788

User apparatus and offset reporting method

A user apparatus including a function for performing communication with a plurality of base stations that includes a first base station and a second base station by dual connectivity is disclosed. The user apparatus includes a measurement unit configured, in a state where the user apparatus performs communication by the... Ntt Docomo Inc

09/07/17 / #20170257864

User terminal and radio base station

To improve throughput and communication quality in radio communication by flexibly controlling UL transmission and DL transmission, a user terminal according to one aspect of the present invention is a user terminal that communicates with a radio base station using a downlink subframe for enabling a first downlink signal to... Ntt Docomo Inc

08/31/17 / #20170251223

Video encoding method, video decoding method, video encoding apparatus, video decoding apparatus, video encoding program, and video decoding program

A video processing system 100 is provided with video encoding device 10 and video decoding device 20. The video encoding device 10 implements backward interframe prediction from a temporally subsequent frame and outputs information indicating that an option to eliminate use of a decoded image of the temporally subsequent frame... Ntt Docomo Inc

08/31/17 / #20170251395

Mobile communication system

An object is to perform a priority control that is more elaborate than that is performed by using a QCI. In a mobile communication system according to the present invention, a mobility management node MME notifies a radio base station eNB, in an “Initial Context Setup procedure” or an “E-RAB... Ntt Docomo Inc

08/24/17 / #20170244501

User apparatus and distance estimation method

A user apparatus is provided. The user apparatus is used in a mobile communication system in which Device to Device (D2D) communications are supported. The user apparatus includes an acquisition unit configured to acquire transmission power information for D2D signal transmission at a transmission side user apparatus, and a distance... Ntt Docomo Inc

08/24/17 / #20170245142

User apparatus and soft buffer size determination method

A user apparatus configured to perform communication with a base station in a mobile communication system that supports downlink spatial multiplexing, including transmission means configured to transmit category information of the user apparatus to the base station; reception means configured to receive configuration information from the base station; soft buffer... Ntt Docomo Inc

08/24/17 / #20170245319

User apparatus, base station, and discontinuous reception method

A user apparatus is provided. The user apparatus is used in a mobile communication system supporting Device-to-Device (D2D) communications. The user apparatus includes a control unit configured to put the user apparatus in a discontinuous reception state in the case where predetermined time elapses after the time when a predetermined... Ntt Docomo Inc

08/17/17 / #20170237473

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 are disclosed. The retransmission control method is a retransmission control method in a radio communication system which has a first radio base station apparatus and a second radio base station apparatus that carry out coordinated multiple-point... Ntt Docomo Inc

Patent Packs
08/17/17 / #20170238204

User apparatus and measurement control method

A user apparatus for use in a mobile communication system, including: determination means configured to determine whether the user apparatus can take both states of a discontinuous reception state and a non-discontinuous reception state at the same time; and measurement control means configured, if it is determined that the user... Ntt Docomo Inc

08/17/17 / #20170238261

Base station, user equipment, and radio communication system

A base station determines transmission powers for streams to be transmitted to UEs, performs precoding on data signals and demodulation reference signals (DM-RSs), transmits a mixed data signal with non-orthogonal data signals respectively addressed to the UEs being mixed, and also transmits the DM-RSs. The base station allocates resource elements... Ntt Docomo Inc

08/17/17 / #20170238297

Communication control method, radio communication system, small base station, and user apparatus

A small base station executes radio communication using multiple antennas. There are set multiple antenna groups that each include all or a portion of the antennas and multiple antenna group patterns that each include at least one of the antenna groups. The small base station transmits reference signals with sequences... Ntt Docomo Inc

08/17/17 / #20170238349

User apparatus and base station

A user apparatus is provided which communicates with a base station in a mobile communication system which supports LTE. The user apparatus includes a bearer establishing unit configured to establish one or more radio bearers between the user apparatus and the base station; a control unit configured to control activation... Ntt Docomo Inc

08/10/17 / #20170230815

User apparatus, base station, and different frequency d2d monitoring method

A user apparatus for use in a mobile communication system that supports D2D communication, including: measurement gap control means configured to transmit a configuration request of a measurement gap for monitoring a different frequency D2D signal to a base station of a connecting or residing cell; and D2D communication means... Ntt Docomo Inc

08/10/17 / #20170230854

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

The present invention is designed to reduce the increase of power consumption in user terminals in a radio communication system in which small cells are detected by using DRSs. A user terminal, according to one aspect of the present invention, is capable of communicating with radio base stations that form... Ntt Docomo Inc

08/10/17 / #20170230898

Mobile station, base station, restriction control method, and broadcast information transmission method

A mobile station for receiving broadcast information for restriction control from a base station in a network environment shared by a plurality of operators includes a reception unit configured to receive from the base station the broadcast information including restriction control skip information indicating a type of a call which... Ntt Docomo Inc

08/10/17 / #20170230976

Radio base station, user terminal and radio communication method

The present invention is designed to control UL communication and DL communication flexibly and improve throughput in radio communication. The present invention provides a receiving section that receives uplink data that is transmitted from a user terminal by using an uplink shared channel (PUSCH), a transmission section that transmits downlink... Ntt Docomo Inc

08/10/17 / #20170231000

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

In one aspect, the adaptive modulation and coding method includes, in a user terminal, receiving a modulation and coding scheme (MCS) index, acquiring a modulation order corresponding to the received MCS index as a modulation order of a downlink shared channel, from a first table in which MCS indexes are... Ntt Docomo Inc

08/03/17 / #20170220371

Virtualized resource management node and virtual machine migration method

A virtual resource management node to seamlessly migrate a virtual machine with less influence on services in an NFV environment. A VIM is a VIM for managing each virtualized resource that is included in an NFV environment including virtualized resources including a physical machine in which a virtual machine having... Ntt Docomo Inc

08/03/17 / #20170220791

Terminal device, authentication information management method, and authentication information management system

A terminal device, an authentication information management method, and an authentication information management system for securing a security level of authentication information while maintaining the convenience for a user. A mobile device determines whether communication with a wearable device is possible and determines whether the mobile device is able to... Ntt Docomo Inc

08/03/17 / #20170222693

Radio transmission station and radio communication network

A radio transmission station gives beamforming weights to electrical signals to control directions of radio-wave beams emitted from transmitting antennas. The radio transmission station generates a beam-discovery signal (BDS) that enables a radio reception station, after the radio reception station receives the beams, to identify the directions of the beams,... Ntt Docomo Inc

08/03/17 / #20170223550

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

The present invention is designed to prevent producing interference with UL signals even when a user terminal caries out LBT in a system in which LTE/LTE-A is run in an unlicensed band. A user terminal according to one aspect of the present invention provides a user terminal that can communicate... Ntt Docomo Inc

08/03/17 / #20170223699

User apparatus, and resource control method

A user apparatus for use in a mobile communication system that supports D2D communication, including: D2D communication means that transmits a D2D signal to another user apparatus by using a resource for D2D communication assigned from a base station in the mobile communication system; and resource control means that transmits,... Ntt Docomo Inc

07/27/17 / #20170214603

Domain control method and domain control device

An integrated control device, to implement automatic address assignment in a path spanning two or more administrative domains, and to implement communication between a plurality of administrative domains, acquires definition information that defines protocols used in each administrative domain from an inter-administrative domain communication protocol stack list table, acquires available... Ntt Docomo Inc

07/27/17 / #20170215107

User terminal, radio base station and radio communication method

The present invention is designed so that, even when a user terminal connects with a plurality of radio base stations by employing dual connectivity (DC), the deterioration of uplink communication quality can be reduced. A user terminal communicates with a first radio base station that configures a first cell group... Ntt Docomo Inc

07/27/17 / #20170215205

Radio base station, user terminal and radio communication method

The present invention is designed so that the decrease of throughput can be reduced even when LBT is used in a radio communication system which runs LTE/LTE-A and/or the like in an unlicensed band. A radio base station communicates with a user terminal that can use a licensed band and... Ntt Docomo Inc

07/20/17 / #20170206115

System and method

A system and a method that can allocate a service to a slice without wasteful use of resources. A storing unit stores a function connection table. A function information acquisition unit acquires the function connection information, and a function extraction unit extracts a common function to a plurality of slices... Ntt Docomo Inc

07/20/17 / #20170208019

Slice management system and slice management method

A slice management system and a slice management method that can dynamically adjust the amount of resources when the amount of resources is insufficient to create a slice. A storing unit of a NFVO stores slice utilization status information. In a BSS/OSS, an allocation determination unit determines to create a... Ntt Docomo Inc

07/20/17 / #20170208337

Motion video predict coding method, motion video predict coding device, motion video predict coding program, motion video predict decoding method, motion predict decoding device, and motion video predict decoding program

A video predictive coding system includes a video predictive encoding device having: an input circuit to receive pictures constituting a video sequence; an encoding circuit which conducts predictive coding of a target picture using, as reference pictures, pictures encoded and reconstructed in the past, to generate compressed picture data; a... Ntt Docomo Inc

07/20/17 / #20170208339

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

A predicted signal generation unit provided in a video predictive encoding device estimates a zero-th motion vector for derivation of a zero-th predicted signal, selects a zero-th motion vector predictor similar to the zero-th motion vector, and generates zero-th side information containing a zero-th motion vector predictor index to identify... Ntt Docomo Inc

07/20/17 / #20170208340

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

A predicted signal generation unit provided in a video predictive encoding device estimates a zero-th motion vector for derivation of a zero-th predicted signal, selects a zero-th motion vector predictor similar to the zero-th motion vector, and generates zero-th side information containing a zero-th motion vector predictor index to identify... Ntt Docomo Inc

07/20/17 / #20170208479

Radio base station and radio communication method

The present invention is designed to apply beam forming control between base stations in accordance with traffic that varies over time or geographically. A radio base station can exchange control information with a neighbor radio base station via backhaul, and has a transmitting/receiving section that transmits and receives the control... Ntt Docomo Inc

07/20/17 / #20170208552

Base station and user device

A base station, according to received qualities at user devices, allocates a downlink transmission power to each user device. The base station transmits a mixed data signal in which data signals mutually not orthogonal and each addressed to a corresponding user device are mixed. Control signals are transmitted to user... Ntt Docomo Inc

07/20/17 / #20170208555

User apparatus, mobile communication system, and signaling value application method

A user apparatus in a mobile communication system including a base station and the user apparatus, including: reception means configured to receive a plurality of prioritized signaling values corresponding to a band that the user apparatus uses from the base station; selection means configured to select a signaling value of... Ntt Docomo Inc

07/20/17 / #20170208579

User equipment, mobile communication system, and deactivation timer control method

User equipment that executes carrier aggregation includes a controller that executes timer control for deactivating a cell used for the carrier aggregation, based on expiration of a timer; and a receiver that receives, from the base station, setting information including a timer value of the timer used in the controller,... Ntt Docomo Inc








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