公开(公告)号：US20210368389A1

公开(公告)日：2021-11-25

申请号：US17054251

申请日：2019-05-07

Applicant: Huawei Technologies Co., Ltd.

Inventor： Chuting Yao ,  Haibo Xu ,  Yuanping Zhu ,  Yalin Liu ,  Jian Wang

IPC: H04W28/06 ,  H04L1/16 ,  H04W80/02

Abstract: A data processing method, where a first device communicates with a second device using a relay node, where the relay node does not have a Packet Data Convergence Protocol (PDCP) entity, and the method includes transmitting, by the first device, a first data unit group, where the first data unit group is in a first sequence range, receiving, by the first device, first information using the relay node, where the first information indicates a data unit that the second device has received or has not received in the first data unit group, determining, by the first device, a second sequence range based on the first information.