System and method for implementing ciphered synchronous information transmission in digital cluster

Abstract

The invention discloses a system which can realize encrypted synchronizing information transmission in a digital cluster, comprising a base station controller and a cluster calling distributing server. The base station controller is used for providing occupation conditions of radio resource of a base station transreceiver which is connected with the base station controller to the cluster calling distributing server; the cluster calling distributing server is used for making sure the transmitting mode of encrypted cluster calling encrypted synchronizing information according to the occupation condition of radio resource; and the transmitting mode is informed to the base station controller involved in the encrypted cluster calling process. When the encrypted cluster calling encrypted synchronizing information is transmitted, the two aspects of channel resource conservation and channel transmission quality can both be emphasized.

Description

A system and method for realizing encrypted synchronous information transmission in digital trunking technical field The invention relates to the communication security field of digital trunking, in particular to a system and method for realizing encrypted synchronous information transmission in digital trunking. Background technique With the rapid development of communication technology, digital trunking has gradually become an indispensable tool in people's daily work and life, and the demand for digital trunking communication security is becoming increasingly strong. The wireless communication network is an open network. If no security measures are taken and the wireless network is directly used for data communication, security problems will arise. In order to ensure the security of the trunking call, an appropriate encryption algorithm is usually selected to encrypt the call content. At present, the encryption algorithms widely used in digital trunking voice encrypti...

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Problems solved by technology

From the perspective of saving wireless channel resources, it is most appropriate to multiplex synchronization information and normal communication data and transmit them on existing service channels, which can effectively save channel resources; but on the other hand, real-time transmission between various communication entities Synchronization information, if the existing traffic channels are directly reused, it will inevitably lead to the delay or even loss of data transmission of some traffic channels, which will affect the normal communication quality. Therefore, it is necessary to achieve an effective trade-off between channel resource saving and channel transmission quality

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