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    CQI REPORTING WITH PMI FREQUENCY DOMAIN UNITS
    61.
    发明申请
    CQI REPORTING WITH PMI FREQUENCY DOMAIN UNITS 有权

    公开(公告)号：US20220014249A1

    公开(公告)日：2022-01-13

    申请号：US17424819

    申请日：2020-01-23

    Applicant: Chenxi HAO ,  Yu ZHANG ,  QUALCOMM Incorporated

    Inventor： Chenxi HAO ,  Yu ZHANG

    IPC: H04B7/06 ,  H04B7/0417

    Abstract: Certain aspects of the present disclosure provide techniques for channel quality indictor (CQI) reporting with precoding matrix indicator (PMI) frequency domain (FD) units. A user equipment (UE) may configured with a CSI reporting configuration. CQI and PMI may be configured with different FD unit sizes. The UE may determine which PMI FD units to use for calculating corresponding CQI FD units. PMI and CQI FD units may not be aligned. The UE may determine which PMI FD units to use for calculating CQI based on the alignment. PMI and CQI FD units may be configured using a separate bitmaps, a bitmap and ratio of the FD unit sizes, or a single bitmap. PMI and/or CQI FD units may start from a lowest FD unit index in the system bandwidth, or the lowest FD unit index within a configured bandwidth part (BWP).

    CODEBOOK SUBSET RESTRICTION DESIGN FOR MIMO
    65.
    发明申请
    CODEBOOK SUBSET RESTRICTION DESIGN FOR MIMO 有权

    公开(公告)号：US20210159953A1

    公开(公告)日：2021-05-27

    申请号：US16640150

    申请日：2018-09-11

    Applicant: QUALCOMM Incorporated

    Inventor： Liangming WU ,  Yu ZHANG ,  Chenxi HAO ,  Chao WEI ,  Wanshi CHEN ,  Hao XU

    IPC: H04B7/0456 ,  H04B7/06

    Abstract: Aspects of the present disclosure relate to techniques for codebook subset restriction (CSR). In some cases, a user equipment (UE) receives, from a network entity, codebook subset restriction (CSR) information. The UE determines, based on the CSR information, a restricted beam set for a plurality of antenna panels, determines precoding matrix indicator (PMI) feedback for the antenna panels subject to restricted beam set, and provides the PMI feedback to the network entity.

    PARTIAL BAND CONFIGURATION FOR CHANNEL STATE INFORMATION
    68.
    发明申请
    PARTIAL BAND CONFIGURATION FOR CHANNEL STATE INFORMATION 审中-公开

    公开(公告)号：US20200084787A1

    公开(公告)日：2020-03-12

    申请号：US16610989

    申请日：2018-08-11

    Applicant: Qualcomm Incorporated

    Inventor： Chenxi HAO ,  Yu ZHANG

    IPC: H04W72/12 ,  H04L5/00 ,  H04B7/06

    Abstract: Methods, systems, and devices for wireless communication are described that provide for the utilization of multiple partial bands used in the transmission of one or more channel state information (CSI) reference signals (CSI-RSs). The partial bands may be non-consecutive in the frequency domain, time domain, or a combination thereof and each of which may be precoder using a different precoder configuration. The time intervals, cycling granularity, and number of ports may vary between partial bands. Using RSs transmitted via the multiple partial bands, a user equipment (UE) may determine a channel state parameter for each partial band, which may be used for channel feedback.

    LAYER-SPECIFIC COEFFICIENT QUANTITY AND/OR QUANTIZATION SCHEME REPORTING FOR TYPE II CHANNEL STATE INFORMATION COMPRESSION
    69.
    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：US20250088889A1

    公开(公告)日：2025-03-13

    申请号：US18773040

    申请日：2024-07-15

    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.

    RESOURCE MAPPING OF FREQUENCY DOMAIN COMPRESSION BASED FREQUENCY-SELECTIVE PRECODER MATRIX
    70.
    发明公开
    RESOURCE MAPPING OF FREQUENCY DOMAIN COMPRESSION BASED FREQUENCY-SELECTIVE PRECODER MATRIX 审中-公开

    公开(公告)号：US20240322870A1

    公开(公告)日：2024-09-26

    申请号：US18697904

    申请日：2021-12-16

    Applicant: QUALCOMM Incorporated

    Inventor： Chenxi HAO ,  Yu ZHANG ,  Liangming WU ,  Yi HUANG ,  Hao XU ,  Peter GAAL

    IPC: H04B7/0456 ,  H04W72/0453

    CPC classification number: H04B7/0456 ,  H04W72/0453

    Abstract: A method of wireless communication performed by a user equipment (UE), the method including: receiving an indication of uplink (UL) precoding information, wherein the UL precoding information includes a set of frequency domain (FD) bases and coefficients applied to one or more antenna ports; determining a size of the FD bases based at least in part on an item selected from a list consisting of: a dedicated indication, a frequency resource allocation of an UL channel, and an UL bandwidth part (BWP); receiving a grant of a physical uplink shared channel (PUSCH), wherein a frequency resource allocation of the PUSCH includes a plurality of FD units; and determining precoding matrices for the plurality of FD units based at least in part on entries of the set of FD bases, wherein the entries correspond to positions of the FD bases in a range of a frequency resource.

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