MULTICAST SERVICE IMPLEMENTATION METHOD AND APPARATUS

    公开(公告)号:US20200259672A1

    公开(公告)日:2020-08-13

    申请号:US16862055

    申请日:2020-04-29

    Abstract: This application provides a multicast service implementation method and apparatus. The method includes: receiving, by a first network device, a first unicast join message sent by a second network device, where the first unicast join message is used to request to join a multicast group, a source address of the first unicast join message is an address of the second network device, and a destination address of the first unicast join message is a multicast source address or a rendezvous point (RP) address; and establishing, by the first network device, a tunnel from the first network device to the second network device based on the first unicast join message. The multicast service implementation method and apparatus in embodiments of this application help improve availability of a multicast service.

    DATA TRANSMISSION METHOD, DEVICE, AND SYSTEM
    12.
    发明申请

    公开(公告)号:US20200177337A1

    公开(公告)日:2020-06-04

    申请号:US16786501

    申请日:2020-02-10

    Abstract: A data transmission method, device, and system are disclosed. A specific solution includes: sending, by a base station, an NPSS to UE by using a first subframe in a first radio frame and a first subframe in a second radio frame, where the first radio frame and the second radio frame are consecutive, and both the first radio frame and the second radio frame use a TDD uplink-downlink subframe configuration; sending, by the base station, an NPBCH to the UE by using a second subframe in the first radio frame and a second subframe in the second radio frame; sending, by the base station, an NSSS to the UE by using a third subframe in the first radio frame; and sending, by the base station, a SIB1-NB to the UE by using a third subframe in the second radio frame.

    SIGNAL SENDING METHOD AND APPARATUS, AND SIGNAL RECEIVING METHOD AND APPARATUS

    公开(公告)号:US20200187197A1

    公开(公告)日:2020-06-11

    申请号:US16786408

    申请日:2020-02-10

    Abstract: A signal sending method, a signal receiving method, and an apparatus are provided. The method includes: generating, by a terminal device, a first symbol group that carries a first preamble, where the first symbol group includes four groups of symbols; and sending, by the terminal device, the first symbol group to a network device in K groups of uplink subframes, where any two groups of uplink subframes in the K groups of uplink subframes are not adjacent, each group of uplink subframes in the K groups of uplink subframes include at least one uplink subframe, and uplink subframes included in the group of uplink subframes are continuous subframes, where K is a positive integer greater than 1 and less than or equal to 4.

    RESOURCE CONFIGURATION METHOD, APPARATUS, AND STORAGE MEDIUM

    公开(公告)号:US20200178254A1

    公开(公告)日:2020-06-04

    申请号:US16786605

    申请日:2020-02-10

    Abstract: This application provides a resource configuration method. The method includes: generating, by a network device, a first signal; and sending, by the network device, the first signal to a terminal device at a target resource location. The target resource location includes at least one subframe, and the at least one subframe is an invalid subframe. This implements that the network device sends the first signal in the invalid subframe. Based on a mechanism of the invalid subframe, a terminal device that does not need to receive the first signal may postpone the invalid subframe, and a terminal device that needs to receive the first signal may receive the first signal in the invalid subframe.

    INFORMATION SENDING METHOD, APPARATUS, AND SYSTEM

    公开(公告)号:US20180317185A1

    公开(公告)日:2018-11-01

    申请号:US16029635

    申请日:2018-07-08

    CPC classification number: H04W72/04

    Abstract: Embodiments of the present invention provide an information sending method, including: determining, by a base station, first information indicating a first carrier frequency offset, where the first carrier frequency offset is a carrier frequency offset between an actual cell carrier center frequency and a cell carrier center frequency that is obtained by a terminal; and sending, by the base station, the first information to the terminal, where the first information is used to obtain the actual cell carrier center frequency. According to the technical solutions provided in the embodiments of the present invention, quality of communication between the terminal and the base station is effectively improved.

    SFN Indication Method, Terminal Device, And Positioning Server And System

    公开(公告)号:US20190261304A1

    公开(公告)日:2019-08-22

    申请号:US16401973

    申请日:2019-05-02

    Abstract: The present disclosure relates to SFN indication methods, terminal devices, and positioning servers and systems. One example method includes obtaining an SFN offset indication parameter of a cell i, sending the SFN offset indication parameter of the cell i to a terminal device, receiving the SFN offset indication parameter of the cell i from the positioning server, obtaining a frame number of a radio frame n of a cell j, and determining a phase rotation parameter of the cell i based on the frame number of the radio frame n of the cell j and the SFN offset indication parameter of the cell i, or obtaining a sequence initialization factor used by a narrowband positioning reference signal (NPRS) on a radio frame m of the cell i, and obtaining the NPRS on the radio frame m of the cell i based on the sequence initialization factor.

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