公开(公告)号：US20190253895A1

公开(公告)日：2019-08-15

申请号：US16338469

申请日：2016-09-30

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Haibo XU ,  Xuelong WANG ,  Nathan Edward TENNY ,  Xin YOU

IPC: H04W12/10 ,  H04W12/06 ,  H04W36/00

CPC classification number: H04W12/1006 ,  H04W12/06 ,  H04W12/10 ,  H04W24/10 ,  H04W36/0016 ,  H04W36/0038 ,  H04W36/0061

Abstract: A control signaling processing method, a device, and a system relate to the field of communications technologies, to perform integrity protection on control signaling exchanged between a DU and UE in a CU-DU separated access network architecture. The method includes: determining, by a DU, integrity protection parameters and an integrity protection algorithm, where the integrity protection parameters and the integrity protection algorithm are used to perform integrity protection on a signaling radio bearer between the DU and UE; determining, by the DU, a message authentication code MAC-I based on the integrity protection parameters and the integrity protection algorithm; and receiving, by the DU, control signaling sent by an RRC layer of the DU, and sending, to the UE, the control signaling carrying the MAC-I.