公开(公告)号：US20130266143A1

公开(公告)日：2013-10-10

申请号：US13908276

申请日：2013-06-03

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Xiaoxiao ZHENG ,  Yinghong YANG ,  Li FENG ,  Xiaoying XU ,  Zhufen FU ,  Lunfeng YU ,  Yafei SUN

IPC: H04W12/00

CPC classification number: H04W12/00 ,  H04L63/0428 ,  H04W12/02 ,  H04W80/02

Abstract: Embodiments of the present invention provide a method and a device for synchronizing an uplink ciphering parameter in unacknowledged mode. The method for synchronizing an uplink ciphering parameter in unacknowledged mode includes: sending an indication message to a terminal when detecting that an unrecoverable error occurs in an uplink packet or that the uplink packet is invalid, where the indication message is used to instruct the terminal to initialize an uplink ciphering parameter; receiving a response message sent by the terminal; and initializing the uplink ciphering parameter according to an initial value of the ciphering parameter. The embodiments of the present invention solve a service defect, namely, a break of the communication link caused by synchronization of an uplink ciphering parameter between the terminal and the radio network controller in unacknowledged mode, and shorten the time of synchronizing the uplink ciphering parameter without interrupting the service.

Abstract translation: 本发明的实施例提供了一种用于在未确认模式中同步上行链路加密参数的方法和装置。 用于在未确认模式中同步上行加密参数的方法包括：当检测到上行链路分组中发生不可恢复的错误或者上行链路分组无效时，向终端发送指示消息，其中指示消息用于指示终端 初始化上行加密参数; 接收终端发送的应答消息; 并根据加密参数的初始值初始化上行加密参数。 本发明的实施例解决了在未确认模式下终端与无线网络控制器之间的上行加密参数的同步引起的通信链路的中断，并缩短了上行加密参数的同步时间，而没有 中断服务