A method and system for realizing intercommunication between 3G private network and public network

Abstract

The invention provides a method and system for intercommunication of a 3G special network and a public network. The method comprises following steps of setting mapping relationship between a special network number and an IMPU (IMS Public Identity) of a 3G special network user terminal for the IMS public identity IMPU set by the 3G special network user terminal according to an IP multimedia subsystem IMS network; obtaining the corresponding special network number according to the international mobile subscriber identity IMSI of the 3G special network user terminal when the 3G special network user terminal is started; judging whether the special network number is bound with the IMPU; sending a registering request to the IMS network by using the IMPU bound with the special network number if the special network number is bound with the IMPU; activating the mapping relationship between the special network number and the IMPU after registering is successful; and initiating a call to the public network according to the mapping relationship of the special network number and the IMPU. According to the method and the system, the intercommunication of the 3G special network and the public network is realized, the call is realized by the users of the special network and the public network without changing numbers, and the user perception is improved.

Description

technical field [0001] The invention relates to the technical field of network communication, in particular to a method and system for realizing intercommunication between a 3G private network and a public network. Background technique [0002] Now many large enterprises will install modern 3G dedicated wireless communication systems in their workplaces. For example: with the improvement and development of coal mining equipment and its auxiliary equipment, mine automation and informatization have become the elements of coal enterprise development. As one of the "six major systems" of coal mine safety production, coal mine wireless communication system An important part of safety production management. In the actual coal mine wireless communication network construction based on 3G technology, the mine requires the underground coal mine wireless communication system (private network) to be interconnected with the ground operator network (public network), and users with specia...

AI Technical Summary

Problems solved by technology

[0005] 1. When a private network user is the calling party and a public network user is the called party, the called party will appear as a fixed-line number and dial in, and may refuse to answer the call, resulting in poor user experience;

[0006] 2. When the private network user is called and the public network user is the calling party, it is necessary to dial the corresponding fixed-line number. When the private network user corresponding to the fixed-line number is not within the coverage of the 3G private network, the connection cannot be made.

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