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Collision Communications Inc patents


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

ARCHIVE: New 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009 | Company Directory "C" | Collision Communications Inc-related inventors


Method for simultaneously detecting a plurality of rfid tags using multiuser detection

A method and apparatus are disclosed that apply multiuser detection (MUD) analysis to an aggregated RF response from a plurality of simultaneously queried RFID tags, so as to distinguish the individual tag responses. The claimed method thereby significantly reduces RFID detection latency when multiple tags are simultaneously queried. Some embodiments... Collision Communications Inc

Methods, systems, and computer program products for parameter estimation based on historical context information

Methods and systems are described for parameter estimation in a wireless communication network based on historical context information. In one aspect, a communication context for a first mobile device is determined, wherein the determined communication context includes at least a determined current location of the first mobile device within a... Collision Communications Inc

Method and system for compressed sensing joint channel estimation in a cellular communications network

Methods and systems for performing compressed time domain joint channel estimation in a multi-user MIMO wireless network include receiving training signals from a plurality of users, estimating a maximum delay spread for the received data according to a coherence bandwidth of the received data, limiting the received data in the... Collision Communications Inc

Wireless receiver for turbo loop multiuser detection incorporating reuse of qr component

An improved receiver design implements a method for modeling users in SIC turbo loop multiuser detection architectures that reduces the number of implementation cycles, and thereby reduces the computational overhead associated with computing the inverse of the received signal covariance matrix, by efficiently reusing components of a QR decomposition. By... Collision Communications Inc

Methods, systems, and computer program products for calibrating amplitude hardware-induced distortion in a long term evolution (lte) communications system

Methods and systems are described for calibrating amplitude hardware-induced distortion in a communications system. A power status indication is received by a base station (BS) of a communications system from a user equipment (UE) communicating in the communications system. A downlink pathloss associated with communications to the UE from at... Collision Communications Inc

Methods, systems, and computer program products for communicating data selectively via heterogeneous communication network links

Methods and systems are described for communicating data selectively via heterogeneous communication network links. In one aspect respective data costs are determined associated with communicated data via a plurality of heterogeneous network links each linking to one or more networks. One or more network links to communicate data between a... Collision Communications Inc

Wireless receiver for multiuser detection incorporating residual estimation errors

An improved receiver design implements a practical method for modeling users in SIC turbo loop multiuser detection architectures, wherein in each loop unsubtracted estimation errors from previous loops are used to appropriately scale the error covariance matrix for each user, thereby accurately representing the remaining residual interference in the data... Collision Communications Inc

Polynomial mixture for frequency domain multiuser channel estimation and tracking in a wireless communication network

Methods and systems for obtaining improved channel estimates for frequency-multiplexed data transmissions such as OFDM, OFDMA, or SC-FDMA transmissions overcome the limitations of the static assumption by using a polynomial or other fitting function to fit and model the frequency dependence of the channel coefficients, so that estimates can be... Collision Communications Inc

Reduction of false alarms in pdcch detection

Methods and systems for determining scheduling information of a base station in a network operating according to the Long Term Evolution (“LTE”) standard include monitoring transmissions on the PDCCH of the wireless base station, maintaining a list of active Radio Network Temporary Identifiers (“RNTI's”) assigned by the wireless base station... Collision Communications Inc

Reduced dimension time domain channel estimation in a wireless communication network

Methods and systems for obtaining improved joint channel estimates for a multi-user, frequency-multiplexed data transmission such as SC-FDMA or OFDM begins by estimating separate contributions of users (and/or other signal sources) to the received signal based on joint frequency domain channel estimates. A reduced data set is obtained by subtracting... Collision Communications Inc

Methods, systems, and computer program products for calibrating phase hardware-induced distortion in a cellular communications system

Methods and systems are described for calibrating phase hardware-induced distortion in a cellular communications system. In one aspect, an estimate of a phase difference at a user equipment (UE) between downlink channels including signals sent over two or more BS transmitter chains is obtained. A phase difference between uplink channels... Collision Communications Inc








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