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Method and system for realizing packet key synchronization between multiple base stations

A multicast key and multi-base technology, which is applied in the field of multicast key synchronization between base stations in a wireless communication network, can solve the problem of inability to ensure the realization of macro-diversity technology, the inability to ensure the synchronization of multicast keys between different base stations, and reduce the wireless communication rate. System communication performance and reliability issues, to achieve the effect of easy implementation, simple implementation, and improved reliability

Active Publication Date: 2007-09-05
HUAWEI TECH CO LTD
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AI Technical Summary

Problems solved by technology

However, at present, the synchronization of multicast keys between different base stations cannot be guaranteed, and the realization of macro-diversity technology in wireless communication networks cannot be guaranteed, thereby reducing the communication performance and reliability of wireless communication systems.

Method used

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  • Method and system for realizing packet key synchronization between multiple base stations
  • Method and system for realizing packet key synchronization between multiple base stations
  • Method and system for realizing packet key synchronization between multiple base stations

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Embodiment Construction

[0061] The purpose of the present invention is to provide a scheme for synchronizing multicast keys between base stations in an MBS area, so that the multicast information received from different base stations at any time is encrypted with the same multicast key.

[0062] The technical scheme that the present invention adopts is as shown in Figure 1, specifically comprises:

[0063] Step 11: Establish a synchronized reference time between all base stations in the MBS area and the MBS key management center. The purpose of synchronizing the reference time is to enable each base station to accurately and synchronously activate the new multicast key;

[0064] In the present invention, the reference time can be the system time synchronized between each base station and the key management center, or the MBS reference time specially set for MBS service synchronization;

[0065] Step 12: The MBS key management center sets the synchronization time SyncTime attribute information for the...

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Abstract

The method comprises: establishing the synchronous reference time between multi base stations and the key management center; the key management center sends the synchronization time information used for determining the time of enabling the new key to each base station in order to make each station to determining the new-key enabling time according to the received synchronization time information and to make all base station synchronously enable the new key.

Description

technical field [0001] The invention relates to the technical field of wireless communication, in particular to a method and system for realizing multicast key synchronization between base stations in a wireless communication network. Background technique [0002] At present, most wireless communication networks adopt a cell structure in network design, and a base station is set for each cell, and users in the cell can communicate with the network side through the base station. Meanwhile, in a wireless communication network, in order to ensure the continuity of user communication, the coverage areas of adjacent cells are usually set to overlap each other. [0003] Due to the mobility of the mobile terminal, it often switches between different cells. When the user crosses different cells, if the quality of continuous communication is to be maintained, the user needs to request a channel from an adjacent cell to implement handover processing. In the process of handover, the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L9/08
CPCH04L2209/80H04W12/04H04L63/068H04L63/062H04L9/083H04L9/0891H04L9/12H04W12/041H04W12/0431
Inventor 王海宁杜海涛林志斌单长虹
Owner HUAWEI TECH CO LTD
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