Group key hierarchical management method and system for broadband cluster system, and terminal

A layered management and broadband clustering technology, applied in the field of mobile communications, can solve problems such as inability to manage security of group call services, lack of flexibility in group key management, and potential safety hazards

CN104010276AActive Publication Date: 2014-08-27SHENZHEN ZTE TRUNKING TECH CORP

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Patent Information

Authority / Receiving Office: CN · China
Current Assignee / Owner: SHENZHEN ZTE TRUNKING TECH CORP
Publication Date: 2014-08-27

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Abstract

A method, system, and terminal for hierarchical management of group keys of a broadband cluster system. The method comprises: a system side generates a group root key for a group and issues the group root key to terminals in the group; when establishing a group call, the system side generates a group call security parameter, generates a non-access stratum key and an access stratum key on the basis of the group root key and of the group call security parameter, and issues the group call security parameter to a listening user terminal in the group; and, the system side protects a group call shared channel of the group call on the basis of the non-access stratum key and of the access stratum key.

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Description

technical field

[0001] The present invention relates to the technical field of mobile communication, in particular to a group key hierarchical management method, system and terminal of a broadband trunking system realized based on LTE (Long Term Evolution, long term evolution). Background technique

[0002] The trunking system is developed to meet the command and dispatch needs of industry users, and is a dedicated wireless communication system for specific industry applications. The trunking system is an efficient wireless communication system that supports a large number of wireless users for group communication with a small number of wireless channels by sharing wireless channels. Currently, trunking systems are mainly analog trunking systems and narrowband digital communication systems, and the basic services that can be provided are concentrated in voice and low-speed data services.

[0003] With the rapid development of the mobile Internet and the large-scale construc...

Claims

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