Information transmission method and apparatus

    公开(公告)号:US11363451B2

    公开(公告)日:2022-06-14

    申请号:US16672927

    申请日:2019-11-04

    Abstract: Embodiments of this application disclose an information transmission method and an apparatus. The method includes: sending, by a terminal to a base station, capability indication information used to indicate whether the terminal supports non-coherent joint transmission; and receiving downlink control information sent by the base station, where the downlink control information is based on the capability indication information. According to the embodiments of this application, the base station can know whether the terminal supports NCJT, so as to select an appropriate transmission mode.

    Method and device for determining QCL relationship between antenna ports

    公开(公告)号:US11184090B2

    公开(公告)日:2021-11-23

    申请号:US16674380

    申请日:2019-11-05

    Abstract: This application provides a method and device for determining antenna port quasi co-location QCL. The method includes: generating, by a network device, downlink control information DCI, where the DCI includes QCL indication information, the QCL indication information is used to indicate one of a plurality of pieces of combination information, and first combination information in the plurality of pieces of combination information is used to indicate a QCL relationship between a DMRS antenna port and a CSI-RS antenna port; and sending, by the network device, the DCI to a terminal device. Therefore, in embodiments of this application, the terminal device can determine the QCL relationship between the DMRS antenna port and the CSI-RS antenna port based on the DCI, thereby resolving a problem in the prior art and improving network performance.

    Communication method, communications apparatus, network device, and terminal

    公开(公告)号:US11128349B2

    公开(公告)日:2021-09-21

    申请号:US16288823

    申请日:2019-02-28

    Abstract: This application discloses a communication method, a communications apparatus, a network device, and a terminal. Quasi co-location QCL beam information is determined. The QCL beam information includes beam information that has a QCL relationship with a reference signal antenna port. The QCL beam information is sent. A terminal receives the QCL beam information. The QCL beam information includes the beam information that has the QCL relationship with the reference signal antenna port. The terminal determines, based on the beam information that is included in the QCL beam information and that has the QCL relationship with the reference signal antenna port, a beam that has the QCL relationship with the reference signal antenna port.

    Downlink synchronization method, and apparatus and system cross-reference to related applications

    公开(公告)号:US11102744B2

    公开(公告)日:2021-08-24

    申请号:US16843781

    申请日:2020-04-08

    Abstract: Embodiments of the present disclosure provide a downlink synchronization method, an apparatus, and a system, and relate to the communications field, so as to reduce downlink synchronization complexity and improve downlink synchronization efficiency. According to the downlink synchronization method, abase station sends downlink synchronization reference information to UE by using dedicated signaling or a system message, where the downlink synchronization reference information is used to instruct the UE to perform downlink synchronization in a second cell by referring to a downlink synchronization channel of a first cell; and the base station sends, in the second cell according to location information of the UE, a beam including a downlink synchronization channel to the UE, where the first cell and the second cell include an overlapped coverage area. The embodiments of the present disclosure are applied to synchronization channel sending.

    Power configuration method and related device

    公开(公告)号:US10863444B2

    公开(公告)日:2020-12-08

    申请号:US16505225

    申请日:2019-07-08

    Abstract: A power configuration method and a related device are provided. The method includes: receiving a first power configuration parameter and a second power configuration parameter from a network device; and when receiving a reference signal and data of a first antenna port group and a reference signal and data of a second antenna port group, determining, based on the first power configuration parameter and the reference signal of the first antenna port group, a power of the data that is from the first antenna port group, and determining, based on the second power configuration parameter and the reference signal of the second antenna port group, a power of the data that is from the second antenna port group, so that data sent by a corresponding antenna port group can be separately demodulated based on an obtained power, thereby improving accuracy for demodulating data of a plurality of antenna port groups.

    Multipoint data transmission method and apparatus

    公开(公告)号:US10778287B2

    公开(公告)日:2020-09-15

    申请号:US16149518

    申请日:2018-10-02

    Abstract: A data transmission method and apparatus are provided. The method includes: receiving control information from a network side device, wherein the control information comprises transmission parameter indication information, wherein the transmission parameter indication information is used to indicate a quantity of transport layers for at least two codewords and port numbers of ports for the at least two codewords; and determining, based on the transmission parameter indication information, a quantity of transport layers for at least two codewords and port numbers of ports for the at least two codewords, wherein ports used by different codewords of the at least two codewords are non-quasi-co-location, and ports used by one codeword of the at least two codewords are quasi-co-location when the codeword has more than one port.

    Discovery message processing method and apparatus

    公开(公告)号:US10609630B2

    公开(公告)日:2020-03-31

    申请号:US15976642

    申请日:2018-05-10

    Abstract: This disclosure discloses a discovery message processing method and apparatus, and pertains to the communications field. The method includes: receiving, by a first wireless network device, a discovery message sent by a second wireless network device; and if the first wireless network device is in an RRC connected state or has an RRC connection requirement, sending, by the first wireless network device, a feedback message corresponding to the discovery message to the second wireless network device. This disclosure can save time-frequency resources.

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