Communications method and apparatus

    公开(公告)号:US11375025B2

    公开(公告)日:2022-06-28

    申请号:US17216244

    申请日:2021-03-29

    Abstract: A communications method and apparatus are provided. The method includes: A first access network device sends a first message to a core network device, where the first message is used to indicate to suspend one or both of a first PDU session and a second PDU session. The first PDU session and the second PDU session are PDU sessions that are established as requested by a same terminal, and are used to transmit a duplicated data packet. According to the method, when a condition for implementing reliable transmission is not met, the core network device can be indicated to suspend the PDU session. In this way, a PDU session does not need to be re-established, and signaling overheads for establishing the PDU session are saved.

    Information transmission method and apparatus

    公开(公告)号:US11122523B2

    公开(公告)日:2021-09-14

    申请号:US16578994

    申请日:2019-09-23

    Abstract: Embodiments of the present invention provide an information transmission method, including: when a terminal device is in a power headroom report (PHR) triggering state, receiving, by the terminal device, a first indication from a network device, where the first indication is used to indicate a first uplink transmission resource of the terminal device, and the uplink transmission resource is used by the terminal device to perform uplink transmission with the network device; and keeping, by the terminal device, the power headroom report triggering state in a first time period, and canceling the power headroom report triggering state when the first time period expires, where the first time period is a second time period starting from a receiving time point of the first indication to a time domain end of the first uplink transmission resource indicated by the first indication.

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