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    BEAM MANAGEMENT ENHANCEMENTS FOR MULTI-TRP SCENARIOS
    92.
    发明申请
    BEAM MANAGEMENT ENHANCEMENTS FOR MULTI-TRP SCENARIOS 有权

    公开(公告)号：US20220225138A1

    公开(公告)日：2022-07-14

    申请号：US17607291

    申请日：2020-05-28

    Applicant: QUALCOMM Incorporated

    Inventor： Qiaoyu LI ,  Yu ZHANG ,  Liangming WU ,  Chenxi HAO ,  Chao WEI ,  Min HUANG ,  Yuwei REN ,  Hao XU ,  Wanshi CHEN

    IPC: H04W24/08 ,  H04L5/00 ,  H04B7/08

    Abstract: Apparatus, methods, processing systems, and computer readable mediums for beam management in multi-TRP scenarios are disclosed. An exemplary method generally includes receiving a channel state information reference signal (CSI-RS) resource configuration from at least one base station (BS) for one or more transmission hypotheses, wherein the CSI-RS resource configuration includes CSI-RS resources corresponding to at least a first downlink (DL) demodulation reference signal (DMRS)-port-group and a second DL DMRS-port-group, performing one or more CSI-RS measurements for the one or more transmission hypotheses based, at least in part on the CSI-RS resource configuration, and determining, for each of the one or more transmission hypotheses, a preferred reception beam for communicating with the at least one BS based, at least in part, on the one or more CSI-RS measurements.

    COEFFICIENT INDICATION FOR CHANNEL STATE INFORMATION
    94.
    发明申请
    COEFFICIENT INDICATION FOR CHANNEL STATE INFORMATION 有权

    公开(公告)号：US20220131585A1

    公开(公告)日：2022-04-28

    申请号：US17429065

    申请日：2019-02-15

    Applicant: Liangming WU ,  Chao WEI ,  Qiaoyu LI ,  Chenxi HAO ,  Hao XU ,  Qualcomm Incorporated

    Inventor： Liangming WU ,  Chao WEI ,  Qiaoyu LI ,  Chenxi HAO ,  Hao XU

    IPC: H04B7/06

    Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may perform channel state information measurements on reference signal transmissions from a base station. The UE may identify a set of cross layer coefficients associated with a set of spatial layers based on the channel state information measurements. The UE may additionally identify a set of precoding coefficients associated with a spatial layer from the set of spatial layers. In some implementations, the set of precoding coefficients may be based on the set of cross layer coefficients. In some examples, the UE may transmit the set of cross layer coefficients and the set of precoding coefficients to the base station.

    LAYER-SPECIFIC COEFFICIENT QUANTITY AND/OR QUANTIZATION SCHEME REPORTING FOR TYPE II CHANNEL STATE INFORMATION COMPRESSION
    97.
    发明申请
    LAYER-SPECIFIC COEFFICIENT QUANTITY AND/OR QUANTIZATION SCHEME REPORTING FOR TYPE II CHANNEL STATE INFORMATION COMPRESSION 有权

    公开(公告)号：US20220060919A1

    公开(公告)日：2022-02-24

    申请号：US17309757

    申请日：2020-01-15

    Applicant: QUALCOMM Incorporated

    Inventor： Qiaoyu LI ,  Liangming WU ,  Chenxi HAO ,  Yu ZHANG ,  Chao WEI ,  Min HUANG ,  Wanshi CHEN

    IPC: H04W24/10 ,  H04L5/00

    Abstract: Aspects of the present disclosure relate to wireless communication. In some aspects, a user equipment may determine at least one of: a first number of coefficients to be included in a first set of coefficients in a transfer domain that characterize compressed channel state information (CSI) for a first layer, or a first quantization scheme to be used to interpret the first set of coefficients. The UE may determine at least one of: a second number of coefficients to be included in a second set of coefficients in the transfer domain that characterize the compressed CSI for a second layer, or a second quantization scheme to be used to interpret the second set of coefficients. The UE may transmit a report that identifies the first set of coefficients and the second set of coefficients based at least in part on the determination(s). Other aspects are provided.

    BASIS SUBSET FEEDBACK FOR CHANNEL STATE INFORMATION ENHANCEMENT
    99.
    发明申请
    BASIS SUBSET FEEDBACK FOR CHANNEL STATE INFORMATION ENHANCEMENT 有权

    公开(公告)号：US20220006500A1

    公开(公告)日：2022-01-06

    申请号：US17296608

    申请日：2019-12-06

    Applicant: Chao WEI ,  Liangming WU ,  Chenxi HAO ,  Qiaoyu LI ,  Min HUANG ,  Qualcomm Incorporated

    Inventor： Chao WEI ,  Liangming WU ,  Chenxi HAO ,  Qiaoyu LI ,  Min HUANG

    IPC: H04B7/06 ,  H04W28/06

    Abstract: Methods, systems, and devices for wireless communications are described. In some systems, a user equipment (UE) may report basis subset selection for a set of beams, where the basis vectors are used for frequency domain compression. To reduce reporting overhead, the UE may transmit two reports indicating the basis vectors. The first report may include first information for the basis vectors and is of a known payload size to both the UE and a base station, while the second report may include second information for the basis vectors and may have a payload size dependent on the first information. The base station may decode the first report and may use the decoded first information to decode the second report. Based on the first and second information, the base station may determine the reported set of basis vectors to use for frequency domain compression and may determine non-zero precoding coefficients.

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