Interference Cancellation

Interference Cancellation-related patent applications - as published by the U.S. Patent and Trademark Office (USPTO).

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NEW Methods and apparatuses for providing random access communication
May 25, 2017 - N°20170150528

Methods and devices are provided. Devices asynchronously transmit, without diversity, bursts including information encoded using a low rate fec code having a code rate no higher than ½. A terminal receives transmitted multiple overlapping bursts. The terminal detects and decodes bursts in a window of burst times, performs an iteration of an iterative interference cancellation process, and when at least ...
NEW Interference cancellation method and device
May 25, 2017 - N°20170150414

An interference cancellation method and device are disclosed. In a process of performing cell reestablishment or cell handover, for any interference cancellation parameter previously received from a network-side device, a user terminal can continue to apply the interference cancellation parameter to perform an interference cancellation operation according to a specified first interference cancellation parameter application rule or first instruction information ...
NEW Moving cellular communication system
May 25, 2017 - N°20170150376

A cellular system that includes one or more moving relays, each having one or more add-on interference cancellation modules (icms) capable of generating a cleaner signal by increasing the signal-to-interferer ratio (sir), thereby cancelling interference. The interference originates from intra-network or from out-of-network source. The system enables cellular communication between two or more mobile stations, in a geographic area that ...
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Back-to-back reference signals
Qualcomm Incorporated
May 18, 2017 - N°20170141896

Methods, systems, and devices for wireless communication are described. A base station may select a two sets of reference signal resource elements (res) for a symbol period, where each re of the first set is contiguous to an re of the second set. The base station may also identify resource element groups (regs) for control signaling, where each reg covers ...
Mobile communication system, communication control method, base station superposing an interference replica signal to a ...
Kyocera Corporation
May 18, 2017 - N°20170141868

A mobile communication system comprises: a user terminal that receives a desired wave signal from a serving cell while receiving an interference wave signal from a neighboring cell adjacent to the serving cell; and a base station that manages the serving cell. The base station comprises: a controller that generates an interference replica signal corresponding to the interference wave signal ...
Interference cancellation for signals having the same radio-frequency carrier and transmitted at the same time
Intel Corporation
May 18, 2017 - N°20170141867

Embodiments of wireless communication devices (wcds) and methods for cancelling signal interference in the wcds are generally described herein. Some of these embodiments describe a wcd that includes a receiver to generate a received signal, which includes at least a first signal transmitted to the wcd by a network station that operates in a full-duplex mode while the wcd operates ...
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Rate assignment with rate splitting for interference cancellation friendly new air interface
Mediatek Inc.
May 11, 2017 - N°20170135114

A new air interface that is interference cancellation friendly is proposed. In one novel aspect, a novel code rate assignment with rate splitting is proposed. In one embodiment, a base station decomposes a codeword {x1} into two codewords {x1a} and {x1b}. The two codewords are applied with different code rates and/or modulation orders. More specifically, the code ...
Interference cancellation
Qualcomm Incorporated
May 11, 2017 - N°20170134206

A method to enhance coverage and/or throughput in a heterogeneous wireless network includes detecting interference between a neighboring cell and a serving cell. The method also includes cancelling the interference using an adaptive technique based on whether the interference has colliding common reference signal (crs) tones or whether the interference has colliding dedicated reference signal (drs) tones.
Assistance info and ue feedback for interference cancellation friendly new air interface
Mediatek Inc.
May 11, 2017 - N°20170134150

A new air interface that is interference cancellation friendly is proposed. In one novel aspect, addition information is provided between enb and ue for interference cancellation. From enb perspective, it provides assistance information to ues for cwic. The assistance information may include modulation order and code rate information of the pdsch for data transmission that may cause interference to other ...
Resource element mapping for interference cancellation friendly new air interface
Mediatek Inc.
May 11, 2017 - N°20170134109

A new air interface that is interference cancellation friendly is proposed. In one novel aspect, a base station uses one subband as the basic scheduling unit for each transport block if cwic is configured, e. G., by static or semi-static signaling. By the use of proper bit selection and resource element mapping, the coded bits of a same code block ...
Cancellation signal generation for multiple input and multiple output (mimo) analog interference cancellation
Qualcomm Incorporated
May 11, 2017 - N°20170134074

A multiple input and multiple output device includes a first input switch, a second input switch, a first set of analog interference cancellation (aic) circuits, and a second set of aic circuits. The first input switch is configured to select one of a first transmit input of first transmit inputs or a first transmit input of second transmit inputs. The ...
Channel state information reporting enhancement for network assisted interference cancellation and suppression
Panasonic Intellectual Property Corporation Of America
May 04, 2017 - N°20170126298

The present invention relates to reporting feedback concerning reception quality under at least two different assumptions of interference conditions, i. E. Two interference hypotheses. In particular, a first and a second reception quality are determined for the same reference resource under two different interference hypotheses. The first and the second reception quality are then transmitted within the same channel state ...
Transmitter and interference cancellation method
Huawei Technologies Co., Ltd.
April 27, 2017 - N°20170118047

Present application provides embodiments of a transmitter and an interference cancellation method. The transmitter includes: a first digital predistorter (dpd), a power amplifier (pa), and a first processor located on a feedback channel of the transmitter and separately connected to the pa and the first dpd. The first processor performs, according to a feedback cancellation signal, interference cancellation on a ...
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Terminal apparatus and base station apparatus
Sharp Kabushiki Kaisha
April 20, 2017 - N°20170111133

There are provided a terminal apparatus, a base station apparatus, and a communication system capable of reporting efficient reception quality information when the reception quality information is transmitted in the communication system having a terminal apparatus having different reception functions. The terminal apparatus includes: a reception unit that receives information related to a network assisted interference cancellation and removal function, ...
Wireless communications method and system, and full-duplex wireless transceiver
Huawei Technologies Co., Ltd.
April 13, 2017 - N°20170104576

Embodiments of the present invention disclose a wireless communications method and system, and a full-duplex wireless transceiver, where the method includes: modulating a transmit digital signal into a first radio frequency signal and outputting the first radio frequency signal to a transmit antenna; then performing, under control of a pre-generated control signal, phase adjustment and amplitude adjustment on the first ...
Systems for integrated self-interference cancellation
Kumu Networks, Inc.
April 13, 2017 - N°20170104574

A system for integrated self-interference cancellation, comprising a transmit coupler, coupled to a transmit signal, that samples the transmit signal to create a sampled transmit signal; an analog self-interference canceller, coupled to the transmit coupler, comprising a controller; a signal divider, that splits the sampled transmit signal into a set of signal components; a set of phase shifters, wherein a ...
Interference cancellation apparatus and method
Huawei Technologies Co., Ltd.
April 13, 2017 - N°20170104506

Embodiments of the present invention provide an interference cancellation apparatus and method. The method includes: receiving a radio frequency receive signal by using a main receive antenna; canceling a first-type self-interference component in the radio frequency receive signal according to a radio frequency reference signal, to generate a first processed signal; acquiring the reconstructed self-interference signal according to a self-interference ...
Method and node for supporting network assisted interference cancellation
Telefonaktiebolaget Lm Ericsson (publ)
March 30, 2017 - N°20170094549

The present invention relates to a method for supporting network assistance interference cancellation at a first wireless device served by a first radio network node of a wireless communication network. A transmission of a second radio network node of the wireless communication network directed to a second wireless device interferes with a transmission of the first radio network node directed ...
Interference cancellation using non-linear filtering
Zte Canada Inc.
March 23, 2017 - N°20170085401

To process received wireless signals received in a receiver; a noise and interference estimate is generated by subtracting the component from the received ofdm signal, a normalized noise signal by whitening the noise and interference estimate is produced, interference estimation information is computed from the normalized noise signal, a non-linear frequency domain filtering operation is performed on an output of ...
Methods and apparatuses for interference cancellation
Huawei Technologies Co., Ltd.
March 23, 2017 - N°20170085398

Methods and apparatuses are provided to cancel a near-field reflected self-interference component. The method includes: obtaining a radio frequency receive signal by using a main receive antenna; performing interference cancellation processing on the radio frequency receive signal according to the radio frequency reference signal to generate a first processed signal; performing near-field reflected self-interference channel estimation according to a digital ...
Receiver, transmitter and radio communication method
Ntt Docomo, Inc.
March 23, 2017 - N°20170085333

Provided are a receiver, a transmitter and a radio communication method capable of using non-orthogonal multiple access while suppressing cost increase and processing delay. A mobile station 200a receives non-orthogonal signals, also receives a reference signal to be used for interference cancellation, and extracts the non-orthogonal signal addressed to the mobile station 200a from the received non-orthogonal signals by demodulating ...