A wireless private network real-time communication service encryption method and system

Abstract

The invention discloses a wireless private network real-time communication service encryption method and a wireless private network real-time communication service encryption system, the method and the system not only realize lower delay and overhead brought after encryption and are more suitable for a real-time service, but also avoid causing additional processing overhead and avoid a service performance bottleneck, and simultaneously, each related network element logic processing varies very little and is easy to realize. Moreover, the method has the characteristics of clear logic structures, proper complexity of schemes and convenient integration in the existing system.

Description

technical field [0001] The invention relates to the field of communication technology, in particular to a method and system for encrypting real-time communication services of a wireless private network. Background technique [0002] With the maturity and development of 4G LTE wireless communication technology, more and more industries have begun the construction and use of wireless private networks. The wireless private network has the characteristics of wide coverage, high bandwidth, low delay, and large user capacity. Industrial users can carry out services according to different needs. Typical data communication services based on high-speed, low-latency transmission, such as voice communication , cluster communication, video communication, etc. [0003] Although the private network system based on LTE wireless technology already has a relatively complete encryption system in the wireless air interface, access layer, and core processing layer, in order to further improve ...

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Problems solved by technology

[0006] However, there are the following deficiencies in the above: 1) The service server undertakes the service access of multiple terminal users (usually, the number of concurrent access users varies from 1000+ users), and real-time services need to process service data, such as voice mixing, Video encoding and decoding, etc., have a heavy business load and limited processing capacity, and the encapsulation, decapsulation and transmission process of encrypted and decrypted data are superimposed, and the additional overhead is large, which makes it difficult to guarantee real-time business processing performance; 2) Through the APP layer data encryption method, in the The business server side involves frequent memory copying and moving

Considering the real-time nature, it is impossible to buffer the real-time business data to a certain amount before handing it over to the encryption and decryption machine

However, service packages such as voice data and cluster intercom data have small packet lengths and large quantities, resulting in a large additional communication overhead and real-time performance cannot be guaranteed; 3) The existing business logic processing of the communication service server has huge changes, especially After superimposing the encryption and decryption private interface, the load of the business processing module (such as DSP chip) increases, which may cause performance bottlenecks and make it difficult to ensure system stability

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