DATA TRANSMISSION METHOD AND COMMUNICATIONS APPARATUS

    公开(公告)号:US20220330326A1

    公开(公告)日:2022-10-13

    申请号:US17846885

    申请日:2022-06-22

    Abstract: This application relates to the field of communications technologies, and provides a data transmission method and a communications apparatus, to reduce complexity and overheads of data reception performed by a base station. The method includes: receiving information about a repetition quantity R1 corresponding to Tmax, where Tmax is a maximum transport block size allowed to be used to transmit data; determining a cyclic parameter L based on R1, where the cyclic parameter L indicates that content carried in each of a plurality of time units to which a transport block used to transmit the data is mapped is repeated in L consecutive time units, and wherein a size of the transport block used to transmit the data is Ts, and Ts

    METHOD FOR DETERMINING CARRIER CENTER FREQUENCY AND APPARATUS

    公开(公告)号:US20220295491A1

    公开(公告)日:2022-09-15

    申请号:US17832349

    申请日:2022-06-03

    Inventor: Zhe JIN Qian WU

    Abstract: A method for determining a carrier center frequency in a wireless communications system and apparatus is provided. The method includes: determining, a carrier center frequency used by a base station and UE to communicate, according to a frequency band starting frequency, an absolute radio frequency channel number, a frequency band offset, and a relative radio frequency channel number. According to this application, a time for searching for a cell by a terminal can be reduced, power consumption of the terminal can be reduced, and a battery life can be extended.

    DATA TRANSMISSION METHOD AND APPARATUS

    公开(公告)号:US20220287065A1

    公开(公告)日:2022-09-08

    申请号:US17827007

    申请日:2022-05-27

    Inventor: Zhihu LUO Zhe JIN

    Abstract: A data transmission method and an apparatus are provided. The method includes: A terminal device receives DCI from a network device, where the DCI is used to schedule downlink data and indicate a modulation scheme of the downlink data, the modulation scheme of the downlink data is a first modulation scheme or QPSK, and a modulation order corresponding to the first modulation scheme is greater than 2; and the terminal device receives the downlink data based on the modulation scheme. Based on the foregoing procedure, the network device indicates the modulation scheme of the downlink data by using the DCI, so that the terminal device receives the downlink data based on the modulation scheme indicated by the DCI. In this way, scheduling based on higher order modulation indicated by using the DCI is implemented.

    COLLISION HANDLING METHOD AND APPARATUS

    公开(公告)号:US20220174731A1

    公开(公告)日:2022-06-02

    申请号:US17672149

    申请日:2022-02-15

    Abstract: A collision handling method and apparatus are provided. The method includes: a terminal device determines that PUR SS collides with Paging CSS; and the terminal device determines, based on a status of uplink data transmission in PUR associated with the PUR SS and/or a discontinuous reception DRX configuration status of the terminal device, to preferentially monitor the PUR SS or to preferentially monitor the Paging CSS. In the foregoing method, the terminal device determines, based on an actual situation, whether to preferentially monitor the PUR SS or preferentially monitor the paging CSS, so that when the terminal device is to preferentially monitor the PUR SS, the terminal device can receive a feedback of a network device for PUR transmission in time, and when the terminal device i to preferentially monitor the Paging CSS, it can be ensured that the terminal device can receive a paging message in time.

    COMMUNICATION METHOD, COMMUNICATION DEVICE, AND NETWORK DEVICE

    公开(公告)号:US20220022117A1

    公开(公告)日:2022-01-20

    申请号:US17492002

    申请日:2021-10-01

    Abstract: The present disclosure discloses example communication methods and an example communication device. One example communication method includes receiving, by a communication device and from a first network device in a first communication system, a first access parameter used to access the first communication system and a second access parameter used to access a second communication system, where a system bandwidth of the first communication system is different from a system bandwidth of the second communication system. The first communication system is switched by the communication device to the second communication system based on the second access parameter when a switching condition of switching from the first communication system to the second communication system is satisfied.

    COMMUNICATION METHOD, APPARATUS, AND SYSTEM

    公开(公告)号:US20210378001A1

    公开(公告)日:2021-12-02

    申请号:US17401839

    申请日:2021-08-13

    Abstract: Embodiments of this application provide a solution for network and terminal devices that have inconsistent understandings of retransmission scheduled by using downlink control information (DCI). The solution includes: A network device sends first DCI to a terminal device, and the terminal device receives the first DCI from the network device, where the first DCI includes a first field and a second field, the first field indicates that a retransmitted transport block (TB) exists in a TB scheduled by using the first DCI, and the second field indicates an index of a retransmitted first TB in the TB scheduled by using the first DCI; and the terminal device receives the retransmitted first TB from the network device based on the first field and the second field; or the terminal device sends the retransmitted first TB to the network device based on the first field and the second field.

    COMMUNICATION METHOD, APPARATUS, AND SYSTEM

    公开(公告)号:US20210360637A1

    公开(公告)日:2021-11-18

    申请号:US17391622

    申请日:2021-08-02

    Abstract: Example communication methods and apparatus are described. In one example method, a first cell includes a plurality of terminal devices that can transmit uplink data on a same uplink time-frequency resource. A first terminal device in the plurality of terminal devices determines a reference time domain location based on a preconfigured uplink time-frequency resource, where the reference time domain location is the same as a reference time domain location determined by another terminal device in the plurality of terminal devices. The first terminal device determines a time domain location that is (first duration×N H+second duration×(N−1)) away from the reference time domain location as a start time domain location of X gaps. The first terminal device further determines a time domain location that is (first duration×(M−1)+second duration x (M−1)) away from the reference time domain location as a start time domain location of Y first durations, where Y=X or Y=X+1. Uplink data is sent by the first terminal device to a network device on a first time-frequency resource used to transmit uplink data.

    MESSAGE TRANSMISSION METHOD AND DEVICE

    公开(公告)号:US20210266094A1

    公开(公告)日:2021-08-26

    申请号:US17317530

    申请日:2021-05-11

    Abstract: A message transmission method and device relating to the field of communications technologies are described that improve an anti-interference capability in message transmission. The method includes generating a scrambling code according to a scrambling code initialization seed, wherein the scrambling code initialization seed meets the following expression: cinit=R·2a7+P·(nƒ mod k+1)·2b7 and then scrambling a message according to the scrambling code. The method further includes sending the scrambled message to a terminal on a physical downlink shared channel. Because the first time parameter has different values at at least two different moments, scrambling codes determined at the at least two corresponding different moments are different. Therefore, a possibility at which the base station uses a same scrambling code to scramble a same system message repeatedly in a time period is reduced, so that an anti-interference capability in system message transmission is improved.

    COMMUNICATION METHOD AND COMMUNICATIONS APPARATUS

    公开(公告)号:US20210168796A1

    公开(公告)日:2021-06-03

    申请号:US17171797

    申请日:2021-02-09

    Abstract: This application provides a communication method and a communications apparatus, where the communication method includes: receiving, by a terminal device, downlink control information, where the downlink control information is used to indicate the terminal device to receive or send a first channel on a first resource; receiving, by the terminal device, first indication information, where the first indication information is used to indicate a second resource; when the first resource and the second resource overlap in time domain, receiving or sending, by the terminal device, the first channel on a third resource, where the third resource and the second resource do not overlap in time domain.

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