Group cal communication system and its method

Abstract

The present invention discloses group calling communication system and method, to make mobile communication network group calling service having high reliability. It contains in same group calling zone at least overlap covering two layer network, and each layer network resided with group calling control center. Group calling originated terminal or fixed dispatching desk determine anchor group calling control center, establishing and control administration said group calling, the rest group calling control center as relay group calling control center. Terminal can reside in same layer network, overlay network in main prepare mode working; when terminal residing in different layer network, each overlay network in load-sharing mode working. When each layer network works in main prepare mode, if main use network and standby network terminal simultaneously originate group calling, then group calling control center in main use network trigger as anchor group calling control center, group calling control center in standby network rejecting said group calling and receiving relay request.

Description

technical field [0001] The invention relates to mobile communication technology, in particular to a group call communication system and method thereof. Background technique [0002] Since the birth of the analog mobile communication system in the 1980s, mobile communication has developed rapidly around the world in just two decades. With the successive introduction of the first to third generation mobile communication systems, the impact of mobile communication on human life and work increasing day by day. [0003] The biggest difference between mobile communication and fixed telephone communication is that the user is in a mobile state, which means that the coverage of the mobile communication network must meet the mobility of the user. Therefore, the Global System for Mobile Communication (Global System for Mobile Communication, referred to as "GSM") ) as an example, the coverage of the GSM network has expanded from large cities to small and medium-sized cities, and from ...

AI Technical Summary

Problems solved by technology

[0019] In practical application, the above scheme has the following problems: the reliability of the group call service in the mobile communication network cannot be guaranteed

[0020] The main reason for this situation is that there are significant differences between the hardware or software development process and product design methods of GSM single network coverage equipment or products and the development process and product design methods of general public communication equipment manufacturers. It is difficult to implement, and it will become very difficult to improve the reliability of the equipment after reaching a certain performance, and the cost will increase exponentially, so it cannot meet the strict reliability and safety index requirements for the equipment of the product. There is always a certain probability of failure in the software and hardware of MSC or single-layer network equipment. When the MSC, dispatcher and single-layer network coverage fail, the trunking group call service will be interrupted. In particular, MSC is the entire group call call control center, when the MSC fails, the entire group call will not be possible at all, and the security and reliability of the group call service cannot be guaranteed

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