公开(公告)号：US20220248353A1

公开(公告)日：2022-08-04

申请号：US17725962

申请日：2022-04-21

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Yongzhi LIU ,  Tao LIN ,  Jianqiang LIU ,  Chun YUAN

IPC: H04W56/00 ,  H04J3/06

Abstract: Embodiments of this application disclose a synchronization method and a device. First, a device marks, based on a preset period, a periodic code block in a data bitstream to be sent from a MAC layer to a PHY layer, then sends the data bitstream to a peer device through the PHY layer, records a sending time of each periodic code block as a first timestamp during sending, and returns the first timestamp to the MAC layer. To be specific, by marking a timestamp for the periodic code block received from the MAC layer, the device sets a PHY-layer-based time reference scale (namely, the first timestamp) at the PHY layer.