Channel information feedback method and communication apparatus

    公开(公告)号:US12224833B2

    公开(公告)日:2025-02-11

    申请号:US18331518

    申请日:2023-06-08

    Abstract: This application provides a channel state information (CSI) feedback method including: a terminal device selects B complex coefficients from K complex coefficients according to a preset priority rule, and provides feedback, where K is a quantity of complex coefficients that the terminal device is allowed to feed back, and the preset priority rule is related to at least one of the following: an index value of each complex coefficient in the K complex coefficients, an index value of a reference signal port corresponding to each complex coefficient in the K complex coefficients in S reference signal ports, or an index value of each complex coefficient in the K complex coefficients in a plurality of complex coefficients that are allowed to be selected for a corresponding reference signal port, where S is a quantity of reference signal ports that the terminal device is allowed to select.

    Data sending and receiving method and communication apparatus

    公开(公告)号:US11956794B2

    公开(公告)日:2024-04-09

    申请号:US17246236

    申请日:2021-04-30

    CPC classification number: H04W72/23 H04W72/1273

    Abstract: This application provides a data sending and receiving method. The method includes: receiving, by a terminal device, a first PDCCH and a second PDCCH, where the first PDCCH is used to schedule a first PDSCH, and the first PDSCH is used to transmit first data; determining, based on the first PDCCH and the second PDCCH, a first resource used to transmit the first data, where the first resource is a part or all of a resource of the first PDSCH; and receiving, by the terminal device, the first data from a network device on the first resource. The first resource is determined with reference to the first PDCCH and the second PDCCH, to avoid a problem that receiving performance of the first PDSCH and the second PDCCH may deteriorate when a resource of the second PDCCH overlaps the resource of the first PDSCH.

    Channel measurement method and communications apparatus

    公开(公告)号:US11943014B2

    公开(公告)日:2024-03-26

    申请号:US17541668

    申请日:2021-12-03

    CPC classification number: H04B7/0417 H04B7/0456

    Abstract: This application provides a channel measurement method and a communications apparatus. The method includes: A terminal device generates first indication information and sends the first indication information to a network device, where the first indication information is determined based on received precoded reference signals of P ports and is used to indicate Q ports in the P ports; the P ports correspond to P angle-delay pairs; each angle-delay pair includes one angle vector and one delay vector; the precoded reference signal of each of the P ports is obtained by precoding a reference signal based on one angle vector and one delay vector; and the Q ports correspond to Q angle-delay pairs in the P angle-delay pairs.

    Search space blind detection method and communication apparatus

    公开(公告)号:US11804924B2

    公开(公告)日:2023-10-31

    申请号:US17408941

    申请日:2021-08-23

    CPC classification number: H04L1/0038

    Abstract: A search space blind detection method and a communication apparatus. The method includes: a terminal receives indication information that corresponds to a first search space set and that is sent by a network device, where the indication information is used to indicate one or more search space groups, one search space group includes at least two search spaces having an association relationship, and at least one search space in one search space group belongs to the first search space set; and then, the terminal determines, based on the indication information, a quantity of blind detection times corresponding to the first search space set. The quantity of blind detection times corresponding to the first search space set is determined by considering an association relationship between a plurality of search spaces.

    Resource indication method, terminal device, network device, non-transitory computer-readable medium and chip

    公开(公告)号:US11411696B2

    公开(公告)日:2022-08-09

    申请号:US16557417

    申请日:2019-08-30

    Abstract: This application provides a resource indication method, a terminal device, and a network device. The method includes: receiving, by the terminal device, the first indication information, and determining time domain positions of demodulation reference signals (DMRSs) based on the mapping type of the physical shared channel and with reference to a position index of the last symbol occupied by the physical shared channel or a quantity of symbols occupied by the physical shared channel in the resource unit, where the position index of the last symbol occupied by the physical shared channel in the resource unit corresponds to the first type, and the quantity of symbols occupied by the physical shared channel in the resource unit corresponds to the second type.

    Data transmission method and apparatus

    公开(公告)号:US11057155B2

    公开(公告)日:2021-07-06

    申请号:US16671781

    申请日:2019-11-01

    Abstract: Embodiments of this application provide a data transmission method and apparatus. The method includes: transmitting indication information indicating a data distribution manner selected from a first data distribution manner and a second data distribution manner; performing data transmission with a terminal device according to the data distribution manner indicated by the indication information; wherein the data distribution manner indicating a distribution of modulation symbols of a code block (CB) on one or more orthogonal frequency division multiplexing (OFDM) symbols of at least one resource unit, the one or more OFDM symbols are consecutive in time-domain; and wherein modulation symbols distributed on a same OFDM symbol of the one or more OFDM symbols are interleaved in frequency-domain according to the first data distribution manner and are not interleaved in the frequency-domain according to the second data distribution manner.

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