US 11,902,844 B2
Data processing method and apparatus, and computer storage medium
Chuting Yao, Beijing (CN); Haibo Xu, Beijing (CN); Bingzhao Li, Beijing (CN); Zhenzhen Cao, Boulogne Billancourt (FR); and Jian Wang, Beijing (CN)
Assigned to Huawei Technologies Co., Ltd., Shenzhen (CN)
Filed by Huawei Technologies Co., Ltd., Shenzhen (CN)
Filed on Mar. 2, 2023, as Appl. No. 18/177,379.
Application 18/177,379 is a continuation of application No. 17/655,643, filed on Mar. 21, 2022, granted, now 11,627,510.
Application 17/655,643 is a continuation of application No. 16/764,299, granted, now 11,304,107, issued on Apr. 12, 2022, previously published as PCT/CN2018/112277, filed on Oct. 28, 2018.
Claims priority of application No. 201711140791.8 (CN), filed on Nov. 16, 2017.
Prior Publication US 2023/0209427 A1, Jun. 29, 2023
Int. Cl. H04W 4/00 (2018.01); H04W 36/08 (2009.01); H04W 76/19 (2018.01); H04W 80/02 (2009.01); H04W 80/08 (2009.01); H04W 12/0431 (2021.01); H04W 92/10 (2009.01)
CPC H04W 36/08 (2013.01) [H04W 12/0431 (2021.01); H04W 76/19 (2018.02); H04W 80/02 (2013.01); H04W 80/08 (2013.01); H04W 92/10 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A method comprising:
receiving, by a first device, a first message from a second device, wherein the first message comprises a first indication and a second indication, the first indication instructing the first device to perform at least one of the following operations: a data recovery, a discarding of a data packet, or a delivery of a protocol data unit (PDU) corresponding to a first Service Data Unit (SDU) to a Radio Link Control (RLC) entity, and the second indication instructing the first device to re-establish the RLC entity,
wherein the first message is received when a cell handover or cell change occurs,
wherein a Packet Data Convergence Protocol (PDCP) entity uses a key used before a cell handover or a cell change when the cell handover or the cell change occurs, and
wherein when the PDCP entity is a PDCP entity of a signaling radio bearer (SRB), the first message instructs the first device to discard the data packet;
performing, based on the first indication, the data recovery, the discarding of the data packet, or the delivery of the PDU corresponding to the first SDU to the RLC entity; and
re-establishing, based on the second indication, the RLC entity.