ENHANCED CSI REPORTING FOR MULT-TRP OPERATION

    公开(公告)号:US20240236724A1

    公开(公告)日:2024-07-11

    申请号:US17905292

    申请日:2021-10-01

    Applicant: APPLE INC.

    CPC classification number: H04W24/08 H04B7/024 H04B7/0486 H04B7/0626

    Abstract: Enhanced channel state information (CSI) reporting may include encoding a CSI reporting configuration associated with a first transmission and reception point (TRP) and a second TRP. The CSI reporting configuration may include at least one codebook configuration. The at least one codebook may include at least one of a rank restriction configuration or a codebook subset restriction (CBSR) configuration. The at least one of the rank restriction configuration or the CBSR configuration may correspond to at least one of a particular type of TRP measurement, a particular TRP of the first TRP or the second TRP, or channel measurement resources (CMRs) associated with at least one of the first TRP or the second TRP. A CSI measurement communication received from a user equipment (UE) may be decoded. The CSI measurement communication may be based on the decoded CSI reporting configuration.

    HIGH SPATIAL RESOLUTION MIMO PRECODING FOR UPLINK COMMUNICATION

    公开(公告)号:US20240223247A1

    公开(公告)日:2024-07-04

    申请号:US18556707

    申请日:2022-06-16

    CPC classification number: H04B7/0486

    Abstract: A user equipment (UE) with N transmit (Tx) antenna elements in a wireless network receives precoding information from a base station. The UE constructs a full-rank complex Hadamard matrix (CHM) of order N using the precoding information. The UE then precodes uplink signal using a precoding matrix composed of one or more columns of the full-rank CHM, and transmits the precoded uplink signal to the base station.

    Method and apparatus for mapping uplink control information for channel state information feedback

    公开(公告)号:US12022470B2

    公开(公告)日:2024-06-25

    申请号:US17478317

    申请日:2021-09-17

    Abstract: The present disclosure relates to a communication method and system for converging a 5th-Ggeneration (5G) communication system for supporting higher data rates beyond a 4th-Generation (4G) system with a technology for Internet of Things (IoT). The present disclosure may be applied to intelligent services based on the 5G communication technology and the IoT-related technology, such as smart homes, smart buildings, smart cities, smart cars, connected cars, health care, digital education, smart retail, security, and safety services. A method of transmitting uplink control information in a wireless communication system is provided. The method includes receiving channel state information (CSI) feedback configuration information from a base station, generating (CSI) including at least one of a CSI reference signal resource indicator (CRI), a rank indicator (RI), a precoding matrix indicator (PMI), or a channel quality indicator (CQI) based on the CSI feedback configuration information, identifying an information sequence including the CSI, encoding the information sequence using a polar code, and transmitting the encoded information sequence to a base station. The CRI and the RI are placed before padding bits in the information sequence and the PMI and the CQI are placed after the padding bits in the information sequence.

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