Method for realizing information encryption transmission in wireless communication system

Abstract

A kind of information ciphering transmission method in the wireless communication system, which includes: first, allocate the encryption pattern information separately to the base station and the transcoder and rate adapter unit TRAU in the wireless communication system; and then, when the base station need to proceed information interactive with TRAU, encrypt the information which is to be alternated with the allocated encryption pattern information between the base station and TRAU. This invention can encrypt the voice service or data service code stream which is transmitted at Abis interface in the voice service or data service processing procedure of the GSM digital cluster system, thus can prevent to look through voice service or data service at Abis interface effectively. The encryption algorithm which is selected by the invention is simple, thus, the required processing capacity of the interface bilateral baseband processing unit is low and implementation procedure's complexity unit is low and the modification to the original transaction processing is less.

Description

technical field [0001] The invention relates to the technical field of network communication, in particular to a method for realizing encrypted transmission of information in a wireless communication system. Background technique [0002] At present, due to the different technical systems adopted by the cluster private network, the development of the cluster communication network adopts the idea of ​​cluster private network construction. Disadvantages such as high cost and network maintenance costs. For this reason, with the development of trunking communication technology from analog to digital, the construction of trunking network presents a development direction from independent private network construction to cluster common network construction. [0003] Since the GSM system has the most extensive user base in the world, and Europe has formulated a set of international standard GSM-R for railway mobile trunking communication, GSM-R uses GSM communication technology as th...

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Problems solved by technology

[0010] In addition, due to the long distance between the base station and the base station controller in the cluster communication network, it is difficult to prohibit illegal personnel from physically accessing through the Abis interface; Big security risk

[0011] Therefore, solving the encryption problem of the Abis interface of the trunking system based on the GSM system is a problem that needs to be solved first before popularizing the system, but there is no corresponding solution at present

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