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    CONFIGURATIONS AND FEEDBACK SCHEMES FOR COMPRESSED CHANNEL STATE INFORMATION (CSI)
    61.
    发明申请
    CONFIGURATIONS AND FEEDBACK SCHEMES FOR COMPRESSED CHANNEL STATE INFORMATION (CSI) 有权

    公开(公告)号：US20220029685A1

    公开(公告)日：2022-01-27

    申请号：US17311773

    申请日：2019-12-19

    Applicant: QUALCOMM Incorporated

    Inventor： Qiaoyu LI ,  Liangming WU ,  Chenxi HAO ,  Joseph Binamira SORIAGA ,  Hao XU

    IPC: H04B7/06

    Abstract: Configurations and feedback schemes for compressed channel state information (CSI) feedback are provided. A User Equipment (UE) determines a constraint on a total number of transfer domain coefficients to be reported for compressed Channel State Information (CSI) feedback by the UE for a plurality of beams identified for the feedback, wherein each transfer domain coefficient is associated with amplitude information and phase information. The UE selects from a transfer domain coefficient compression matrix, based on the constraint, a set of one or more transfer domain coefficients to report for each of the beams. The UE reports information indicating a number of selected transfer domain coefficients in the set of transfer domain coefficients for each beam and a location of each transfer domain coefficient within the transfer domain coefficient compression matrix and reports at least the amplitude and phase information for the selected coefficients.

    CQI REPORTING WITH PMI FREQUENCY DOMAIN UNITS
    62.
    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
    66.
    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
    69.
    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.

    BUFFER RESTRICTION FOR TIME-DOMAIN CHANNEL STATE INFORMATION REPORTING
    70.
    发明申请
    BUFFER RESTRICTION FOR TIME-DOMAIN CHANNEL STATE INFORMATION REPORTING 有权

    公开(公告)号：US20250142389A1

    公开(公告)日：2025-05-01

    申请号：US18837126

    申请日：2022-04-24

    Applicant: QUALCOMM Incorporated

    Inventor： Jing DAI ,  Chenxi HAO ,  Liangming WU ,  Chao WEI ,  Lei XIAO ,  Faris RASSAM ,  Min HUANG ,  Wei XI ,  Hao XU

    IPC: H04W24/10 ,  H04W72/0446

    Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive from a network entity, a control message triggering the UE to provide a time-domain aperiodic channel state information (A-CSI) report for indicating time-domain channel state information (CSI) associated with CSI reference signal (CSI-RS) resources within an observation window, where a beginning of the observation window is based on when the control message is received. The UE may perform performing measurements of channel state information reference signals (CSI-RSs) received via the CSI-RS resources that occur within the observation window. The UE may then transmit, to the network entity based on the control message, the time-domain A-CSI report indicating measured time-domain CSI associated with the observation window, where the measured time-domain CSI is based on the measurements.

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