Point-to-point calling method in cluster system based on LTE technology, terminal thereof and system thereof

Abstract

The invention relates to a point-to-point calling method in cluster system based on LTE technology, a terminal thereof and a system thereof. The method comprises the following steps: through a base station, a core network, an IMS domain and an application server, a source terminal establishes a conversation channel with a target terminal; through the conversation channel, transmission of voice data with the target terminal is carried out. Based on a present air interface protocol, through not changing anything as possible or carrying out function expansion as small as possible, a point-to-point cluster communication mechanism is completed, by employing IMS+PoC configuration, function expansion is carried out on partial network elements in present network configuration, and through the base station, the core network, the IMS domain and the application server, the conversation channel between the source terminal and the target terminal is established. Transmission of the voice data with the target terminal is carried out through the conversation channel, a point-to-point service of the cluster system in an LTE network is realized, and by utilizing the cluster system, compatible and fusion with a present LTE network are realized.

Description

technical field [0001] The present invention relates to the field of communication technology, in particular to a method, terminal and system for point-to-point calling in a trunking system based on LTE (Long Term Evolution, long-term evolution) technology. Background technique [0002] At present, 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. A large number of wireless users in the system share a small number of wireless channels, and the main application is command and dispatch. It is a multi-purpose, High performance wireless communication system. 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] The trunking communication system has experienced a dev...

AI Technical Summary

Problems solved by technology

In addition, in terms of spectrum utilization and coverage, the existing digital trunking system cannot well meet the needs

[0005] At present, the broadband digital trunking system based on LTE technology has become the development direction of the next-generation trunking system. The standards for the network architecture, business process, business functions and key technologies of the broadband digital trunking system based on LTE technology have not yet been formulated, and the existing The evolution of the second-generation trunking system to the broadband digital trunking system based on LTE technology has great difficulties, and it does not have or poor compatibility with the LTE network

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