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

Active Publication Date: 2014-08-27
SHENZHEN ZTE TRUNKING TECH CORP
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  • Abstract
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  • Claims
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AI Technical Summary

Problems solved by technology

However, the K value of the listening user terminal in the same group is confidential and different, so if the key K on the terminal is used directly, the group call service of the broadband trunking system cannot be safely managed
[0008] In the existing trunking communication tech

Method used

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

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Embodiment Construction

[0076] In order to make the purpose, technical solution and advantages of the present invention more clear, the embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined arbitrarily with each other.

[0077] In addition, although a logical order is shown in the flowcharts, in some cases the steps shown or described may be performed in an order different from that shown or described herein.

[0078] An embodiment of the present invention provides a group key hierarchical management method of a broadband cluster system, including:

[0079] The system side generates a group root key for the group, and sends the group root key to terminals in the group;

[0080] When a group call is established, the system side generates a group call security parameter, generates a non-access...

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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.

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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Application Information

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IPC IPC(8): H04W4/08H04W12/04H04W84/08
CPCH04W4/08
Inventor 李宗政张志辉赵洪坤翟来国甘露
Owner SHENZHEN ZTE TRUNKING TECH CORP
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