Parameter synchronization method and device

A technology of parameters and parameter values, applied in the field of parameter synchronization methods and devices, can solve the problems of data transmission interruption, inconsistent RLC encryption and decryption parameters, and the encryption and decryption mechanism cannot be executed normally, so as to ensure the effect of normal transmission.

Inactive Publication Date: 2008-03-26
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0015] Embodiments of the present invention provide a parameter synchronization method and device to solve the problem of inconsistency between the RLC encryption and decryption parameters on the RNC and UE side during the data transmission process of RLC performing encryption in the existing UM mode after the cell update process occurs, resulting in encryption and decryption The mechanism cannot be executed normally, and the data transmission is interrupted, so as to improve the reliability of RLC data transmission in UM mode

Method used

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  • Parameter synchronization method and device

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Embodiment Construction

[0031] The technical solution of each embodiment of the parameter synchronization method of the present invention is: when a cell update process triggered by wireless link out-of-sync occurs, the encryption and decryption parameters of the receiving end and the sending end RLC are synchronized by sending or receiving an encryption and decryption parameter change message.

[0032] There are many specific ways to implement the encryption and decryption parameter change message, and the present invention will be further described in detail below through specific embodiments and in conjunction with the accompanying drawings.

[0033] Embodiment 1 of parameter synchronization method

[0034] As shown in Figure 1, it is a flowchart of a specific embodiment 1 of the parameter synchronization method of the present invention. The parameter synchronization method is a process performed by the RNC side in the communication network, and specifically includes the following steps:

[0035] ...

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Abstract

The invention provides a parameter synchronization method and a device, the method includes: when the RCL transmits the encrypted data under a UM mode, executes the cell updataing triggerd by the wireless links; generating encryption and decryption parameter changing information and sending or acquiring the encryption and decryption parameter changing information, adjusting the local RLC encryption and decryption parameter based on the encryption and decryption parameter changing information. The device includes a module for executing the parameter synchronization method. After the cell update is triggered by the wireless links, the invention ensures the normal encryption and decryption operation when doing encrypted data transmission.

Description

technical field [0001] The invention belongs to the technical field of communication, and in particular relates to a parameter synchronization method and device in the technical field of communication. Background technique [0002] Universal Mobile Telecommunications System (hereinafter referred to as UMTS) is a third-generation mobile communication system that adopts Wideband Code Division Multiple Access (hereinafter referred to as WCDMA) air interface technology, and is also commonly referred to as WCDMA communication system. The WCDMA communication system includes a radio access network (Radio Access Network, hereinafter referred to as RAN) and a core network (Core Network, hereinafter referred to as CN). Wherein, the RAN implements all wireless-related functions, and is generally also referred to as a Universal Terrestrial Radio Access Network (UTRAN for short). [0003] The wireless interface of UTRAN is divided into physical layer, data link layer and network layer....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04Q7/38H04B7/26H04L7/00H04W12/02H04W36/24H04W56/00
CPCH04L9/08H04W12/02H04L9/0891H04L9/12H04W80/02H04L2209/80H04W12/033
Inventor 汤正华郭传真
Owner HUAWEI TECH CO LTD
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