COMMUNICATIONS METHOD AND APPARATUS

    公开(公告)号:US20210153188A1

    公开(公告)日:2021-05-20

    申请号:US17162995

    申请日:2021-01-29

    IPC分类号: H04W72/04 H04L5/00

    摘要: This application discloses a communications method and apparatus. The method includes: receiving, by a terminal device, PUCCH resource configuration indication information from a network device, where the PUCCH resource configuration indication information is associated with one or more of the following parameters: a downlink channel resource parameter, a demodulation reference signal port-related parameter, and a transport block parameter. A corresponding apparatus is further disclosed. According to the solution in this application, the PUCCH resource configuration indication information is associated with one or more parameters of the downlink channel resource, the demodulation reference signal port-related parameter, and the transport block parameter. When the terminal device sends uplink control information by using a PUCCH resource, a PUCCH resource conflict can be avoided, thereby ensuring transmission reliability.

    DATA SCRAMBLING METHOD AND RELATED DEVICE

    公开(公告)号:US20210119836A1

    公开(公告)日:2021-04-22

    申请号:US17136660

    申请日:2020-12-29

    IPC分类号: H04L25/03 H04W72/04

    摘要: A data scrambling method and a related device are provided. In the data scrambling method, a communications device may configure one scrambling identifier associated with downlink control information configuration information or a downlink control parameter, or a plurality of scrambling identifiers associated with different downlink control information configuration information or downlink control parameters, where the downlink control information configuration information is parameter information used to obtain a downlink control channel, and the downlink control parameter is a parameter included in downlink control information or a parameter related to a parameter included in downlink control information; and the communications device may send the one scrambling identifier or the plurality of scrambling identifiers to a terminal device. It can be learned that the scrambling identifier configured in embodiments of this application is associated with the downlink control information configuration information or the downlink control parameter.

    DMRS TRANSMISSION METHOD AND COMMUNICATIONS DEVICE

    公开(公告)号:US20210021300A1

    公开(公告)日:2021-01-21

    申请号:US17061164

    申请日:2020-10-01

    摘要: This application provides a Demodulation Reference Signal (DMRS) transmission method and a communications device. The method includes: determining, by a communications device, a current mode of a resource scheduling unit, where the current mode is a frequency hopping mode or an aggregation mode, and performing, by the communications device, DMRS mapping or demapping by using a DMRS pattern corresponding to the current mode, where a location of a symbol occupied by a DMRS in the DMRS pattern corresponding to the current mode is different from a location of a symbol occupied by a DMRS in a preset DMRS pattern. In embodiments of this application, a location of a symbol occupied by a DMRS can be flexibly selected depending on different modes. Therefore, requirements of the different modes can be satisfied in the embodiments of this application, thereby improving network performance.

    COMMUNICATION METHOD AND COMMUNICATION APPARATUS

    公开(公告)号:US20240056139A1

    公开(公告)日:2024-02-15

    申请号:US18496386

    申请日:2023-10-27

    IPC分类号: H04B7/0456 H04W72/231

    CPC分类号: H04B7/0456 H04W72/231

    摘要: This application discloses communication methods and communication apparatuses. In an implementation, a communication method includes: receiving first information that indicates first group configuration information and second group configuration information, the first group configuration information indicates a correspondence between P reference signal ports and Z layers, and the second group configuration information indicates a correspondence between N frequency domain base vectors and the Z layers; and sending a precoding matrix indicator (PMI) corresponding to the Z layers, where the PMI is determined based on the first information.

    CHANNEL STATE INFORMATION FEEDBACK METHOD AND COMMUNICATIONS APPARATUS

    公开(公告)号:US20220416866A1

    公开(公告)日:2022-12-29

    申请号:US17887209

    申请日:2022-08-12

    IPC分类号: H04B7/06 H04B7/0456

    摘要: A channel state information feedback method includes: a terminal receives first indication information from a network device, and the terminal sends channel state information to the network device. The first indication information is used to indicate a type of a right multiplication matrix in a first codebook, and the first codebook satisfies a formula (I). W is the first codebook, W1 is a port selection matrix, (II) is a linear superposition coefficient matrix, Wf is the right multiplication matrix, and (III) is a conjugate transpose of Wf, and is used by the terminal to determine the channel state information based on the first codebook. According to the method, when there are a plurality of codebooks, the codebook used by the terminal to obtain the CSI can be clearly indicated.

    Channel Measurement Method And Communication Apparatus

    公开(公告)号:US20220224568A1

    公开(公告)日:2022-07-14

    申请号:US17707323

    申请日:2022-03-29

    IPC分类号: H04L25/02 H04W56/00

    摘要: Example channel measurement methods and a communication apparatus are described. One example method include receiving a precoded reference signal and indication information by a terminal device, where the indication information is used to indicate a relative delay between a first delay and a second delay, and the first delay and the second delay are determined through uplink channel measurement. The terminal device performs channel measurement based on the precoded reference signal and the indication information.

    DATA TRANSMISSION METHOD AND COMMUNICATION APPARATUS

    公开(公告)号:US20210337572A1

    公开(公告)日:2021-10-28

    申请号:US17371300

    申请日:2021-07-09

    IPC分类号: H04W72/12 H04W72/04

    摘要: This application provides a data transmission method and a communication apparatus, to improve data transmission reliability. The method includes: receiving downlink control information (DCI); determining a plurality of pieces of quasi-co-location (QCL) information based on the DCI; and receiving downlink data based on the plurality of pieces of QCL information. The plurality of pieces of QCL information correspond to a plurality of time domain units, each time domain unit corresponds to at least one piece of QCL information, and at least two of the plurality of pieces of QCL information are different, that is, the downlink data is from at least two network devices.

    DATA SENDING AND RECEIVING METHOD AND COMMUNICATION APPARATUS

    公开(公告)号:US20210259003A1

    公开(公告)日:2021-08-19

    申请号:US17246236

    申请日:2021-04-30

    IPC分类号: H04W72/12

    摘要: 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.

    INFORMATION TRANSMISSION METHOD AND COMMUNICATIONS DEVICE

    公开(公告)号:US20200260454A1

    公开(公告)日:2020-08-13

    申请号:US16861842

    申请日:2020-04-29

    IPC分类号: H04W72/04 H04W76/11 H04L5/00

    摘要: This disclosure provides an information transmission method and a communications device. The method includes: when determining that higher layer signaling is not configured with a scrambling identifier, scrambling or descrambling, by a communications device, data by using a second initial scrambling value, where the scrambling identifier is used by the communications device to determine a first initial scrambling value used for data scrambling or descrambling, and the second initial scrambling value is related to at least one or two of a cell identifier, a radio network temporary identifier, and a reserved bit. Therefore, in the embodiments of this disclosure, when determining that the higher layer is not configured with the scrambling identifier, the communications device scrambles or descrambles the data by using the second initial scrambling value. This resolves a problem in the prior art that a terminal device cannot determine an initial scrambling value used for data scrambling.