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115 条记录 (耗时 0.037 秒)

    Methods and apparatus for constructing polar codes
    71.
    发明授权
    Methods and apparatus for constructing polar codes 有权

    公开(公告)号：US11128316B2

    公开(公告)日：2021-09-21

    申请号：US16320038

    申请日：2017-06-26

    申请人： QUALCOMM INCORPORATED

    发明人： Changlong Xu ,  Jian Li ,  Jilei Hou ,  Chao Wei

    IPC分类号： H03M13/00 ,  H03M13/13 ,  H04B17/336 ,  H03M13/35 ,  H04L1/00 ,  H04L1/18

    摘要： Methods and apparatus for constructing polar codes are provided. A transmitter determines at least one set of parameters corresponding to data to be transmitted, and a set of sorting indices corresponding to bits of the data to be transmitted based on the set of parameters, the set of sorting indices indicating a position set of the bits to be transmitted. The transmitter polar encodes the data based at least on the set of parameters and the set of sorting indices to generate a coded block of the data, and transmits the coded block of the data.

    Parity bit channel assignment for polar coding
    72.
    发明授权
    Parity bit channel assignment for polar coding 有权

    公开(公告)号：US11070237B2

    公开(公告)日：2021-07-20

    申请号：US16487242

    申请日：2017-03-23

    申请人： QUALCOMM Incorporated

    发明人： Jian Li ,  Changlong Xu ,  Chao Wei ,  Jilei Hou ,  Jing Jiang

    IPC分类号： H03M13/29 ,  H03M13/13 ,  H03M13/09 ,  H04L1/00 ,  H03M13/00 ,  H03M13/15

    摘要： Methods, systems, and devices for wireless communication are described that support channel selection for parity bits in polar coding techniques. In some cases, an encoder or decoder of a wireless device may assign information bits, frozen bits, and parity check bits to polar channels of an encoder or decoder based on reliability metrics. The information bits may initially be assigned and based on a channel index of the first information bit, the parity check bits may be assigned to channels having higher channel indices than the first information bit. After assignment, the bits may be encoded or decoded.

    Techniques for channel state information acquisition in new radio technology
    73.
    发明授权
    Techniques for channel state information acquisition in new radio technology 有权

    公开(公告)号：US11018745B2

    公开(公告)日：2021-05-25

    申请号：US16324710

    申请日：2017-08-11

    申请人： QUALCOMM INCORPORATED

    发明人： Yu Zhang ,  Chao Wei ,  Jilei Hou

    IPC分类号： H04L5/12 ,  H04B7/06 ,  H04L1/00 ,  H04L1/06

    摘要： Certain aspects of the present disclosure provide techniques for channel state information acquisition in wireless communication systems operating according to new radio (NR) technologies. An exemplary method that may be performed by a user equipment (UE) generally includes receiving a first beamformed channel state information reference signal (CSI-RS), determining, based on the first beamformed CSI-RS and the beacon reference signal, information regarding an adjustment, preferred by the UE, of a beam-former to be used for a forthcoming second beamformed CSI-RS, transmitting a beamformer adjustment indicator (BAI), periodically, semi-persistently, or aperiodically, that indicates the preferred adjustment, and reporting channel state information feedback (CSF), based on the first beamformed CSI-RS.

    Generation of polar codes with a variable block length utilizing
    74.
    发明授权
    Generation of polar codes with a variable block length utilizing 有权

    公开(公告)号：US10749633B2

    公开(公告)日：2020-08-18

    申请号：US16065077

    申请日：2016-08-17

    申请人： QUALCOMM Incorporated

    发明人： Changlong Xu ,  Jian Li ,  Jilei Hou ,  Neng Wang

    IPC分类号： H04L1/00 ,  H03M13/13 ,  H03M13/00

    摘要： Polar codes may be generated with a variable block length utilizing puncturing. Some puncturing schemes consider punctured bits as unknown bits, and set the log likelihood ratio (LLR) for those bits to zero; while other puncturing schemes consider punctured bits as known bits, and set the LLR for those bits to infinity. Each of these puncturing schemes has been observed to provide benefits over the other under different circumstances, especially corresponding to different coding rates or different signal to noise ratio (SNR). According to aspects of the present disclosure, both puncturing schemes are compared, and the puncturing scheme resulting in the better performance is utilized for transmission.

    CSI reporting for LTE-TDD eIMTA
    75.
    发明授权
    CSI reporting for LTE-TDD eIMTA 有权

    公开(公告)号：US10341896B2

    公开(公告)日：2019-07-02

    申请号：US15831056

    申请日：2017-12-04

    申请人： QUALCOMM Incorporated

    发明人： Peng Cheng ,  Neng Wang ,  Chao Wei ,  Wanshi Chen ,  Peter Gaal ,  Hao Xu ,  Jilei Hou

    IPC分类号： H04W24/10 ,  H04L5/14 ,  H04L29/08 ,  H04W72/04 ,  H04W76/27 ,  H04L5/00 ,  H04L1/00 ,  H04W88/02 ,  H04W88/08

    摘要： Methods, systems, and devices are described for providing periodic CSI reports and/or aperiodic CSI reports to provide CSI for both anchor and non-anchor TDD subframes in eIMTA. Periodic CSI reports may be provided based on a reference configuration, and aperiodic CSI reports may be provided based on a time of reception of a CSI request and a reference configuration. A UE may determine to report anchor or non-anchor CSI through explicit or implicit signaling. Aperiodic CSI may be used for transmission of anchor subframe CSI reports and periodic CSI may be used for transmission of non-anchor subframe CSI reports, or aperiodic CSI may be used for transmission of non-anchor subframe CSI reports and periodic CSI may be used for transmission of anchor subframe CSI reports. A determination of the reference subframe for aperiodic CSI estimation may be based on a time of receipt of an aperiodic CSI request.

    Signaling of enhanced power control for eIMTA interference mitigation
    76.
    发明授权
    Signaling of enhanced power control for eIMTA interference mitigation 有权

    公开(公告)号：US10111188B2

    公开(公告)日：2018-10-23

    申请号：US14781159

    申请日：2014-05-09

    申请人： QUALCOMM Incorporated

    发明人： Minghai Feng ,  Neng Wang ,  Chao Wei ,  Jilei Hou

    IPC分类号： H04W52/54 ,  H04L5/14 ,  H04W52/14 ,  H04W52/24 ,  H04W52/10

    摘要： Methods, systems, and-devices are described for interference mitigation in a time-division duplex(TDD)wireless communication system. First and second subframe types may be identified for TDD subframes to be transmitted using the system. Different power control parameters associated with each subframe type may be identified based on transmission directions in neighboring cells for the particular subframes. One or more TDD subframes to be transmitted may be identified as a first or second subframe type, and power control may be applied to the transmitted subframes according the power control parameter associated with the subframe type. The identification of subframes and power control parameters to be applied to each type of subframe may be transmitted, for example, to a user equipment(UE). The information may be transmitted to a UE, for example, via radio resource control(RRC)signaling or via a physical layer control channel.