Bandwidth recourse switching method, terminal, and network device for indicating bandwidth resource switching

    公开(公告)号:US11924815B2

    公开(公告)日:2024-03-05

    申请号:US17172919

    申请日:2021-02-10

    CPC classification number: H04W72/0453 H04L5/0094 H04L27/26025 H04W72/23

    Abstract: A bandwidth resource switching method and apparatus are provided. When a network device sends bandwidth resource indication information to a terminal by using downlink control information, the network device may impose some constraints on uplink transmission mode-related configuration information or SRS-related configuration information on an indicated bandwidth resource, and other indication information carried in the downlink control information, so that no ambiguity occurs when the terminal parses the bandwidth resource indication information. Alternatively, when a side of a terminal receives bandwidth resource indication information sent by a network device by using downlink control information, the terminal parses, in an unambiguous interpretation manner, configuration information on a bandwidth resource indicated by the bandwidth resource indication information in the downlink control information. According to the application, a BWP is smoothly switched to perform uplink transmission, uplink transmission efficiency can be improved, and system robustness can be improved.

    Power headroom reporting method and apparatus

    公开(公告)号:US10856274B2

    公开(公告)日:2020-12-01

    申请号:US16673509

    申请日:2019-11-04

    Abstract: Embodiments of this application provide a power headroom reporting method and apparatus. Impact of introduction of multi-beam transmission, a plurality of time-frequency resource configurations, or an uplink multi-waveform technology on a power headroom is considered, so that the power headroom is calculated and reported more accurately, to help a network side make a scheduling decision, thereby improving communication performance.

    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.

    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.

    UPLINK REFERENCE SIGNAL SENDING METHOD, UPLINK REFERENCE SIGNAL RECEIVING METHOD, AND COMMUNICATION APPARATUS

    公开(公告)号:US20230078895A1

    公开(公告)日:2023-03-16

    申请号:US18053356

    申请日:2022-11-07

    Inventor: Ye Wu Liuliu Ji

    Abstract: This application provides an uplink reference signal sending method, an uplink reference signal receiving method, and a communication apparatus, to obtain an accurate measurement result of an uplink channel. The method includes: determining, according to a resource allocation rule, downlink reference signal resources corresponding to a plurality of first resources used to carry an uplink reference signal in a plurality of uplink reference signal resources, where each uplink reference signal resource includes one or more first resources; determining, based on the downlink reference signal resource corresponding to each first resource, a precoding matrix corresponding to each first resource; and then sending a precoded uplink reference signal, where the precoded uplink reference signal is obtained by precoding the uplink reference signal based on the precoding matrix corresponding to each first resource.

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