Service implementing method, system and device for roaming terminal in broadband cluster system

Abstract

The invention provides a service implementing method, system and device for a roaming terminal in a broadband cluster system. According to the service implementing method, system and device for the roaming terminal in the broadband cluster system, a TCF network element from which core network and capable of providing a group calling service to the roaming terminal can be obtained dynamically by a group main control server of a group which the terminal belongs to by controlling the TCF network element for managing terminal services to send a registration request to the group main control server of the group which the terminal belongs to. Therefore, the application scene of the roaming terminal can be well adapted, the group main control server is guaranteed to obtain the TCF network element which currently provides the group calling service to the roaming terminal dynamically and in time, and operations with extremely low efficiency, such as interface inquiry between the network elements, which are needed by the group main control server to know the TCF network element which currently provides the group calling service to the roaming terminal are avoided.

Description

technical field [0001] The present application relates to trunking communication technology, in particular to a service realization method, system and device when a terminal roams in a broadband trunking system. Background technique [0002] The trunking communication system is a dedicated wireless communication system developed to meet the command and dispatch needs of industry users and is oriented to specific industry applications. The trunking communication system has a wide range of application markets in the fields of government departments, public safety, emergency communications, electric power, civil aviation, petrochemical and military. [0003] In the trunking communication system, the broadband multimedia trunking system emerges as the times require, following the demand for broadband multimedia trunking services. TD-LTE's broadband trunking system is based on the fourth generation mobile communication technology TD-LTE as the core technology, combining the high...

AI Technical Summary

Problems solved by technology

[0004] However, the existing TD-LTE broadband trunking standard has not completely defined the specific process of how to realize the service when the terminal roams

In other words, in the TD-LTE broadband trunking system, when the terminals in the group roam, the trunking control function module (TCF: Trunking Control Function) module that provides business services for the terminals will change. However, the current TD-LTE The broadband trunking standard does not provide how the designated group master server in the group dynamically determines the TCF that provides services for the terminal according to the current location of the terminal roaming. In this way, when the terminal initiates a group call service, it will be due to The group call service cannot be quickly established because the TCF that provides services for the terminal cannot be determined

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