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Method, network and terminal device for obtaining multicast and broadcast service secret key

A technology of a multicast broadcast service and an acquisition method, applied in the field of multicast broadcast technology, can solve the problems of not providing a terminal and a base station MBS link, unable to solve the terminal, and not providing an MBS key for acquisition, etc.

Active Publication Date: 2012-04-25
XFUSION DIGITAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0023] However, the process and specific steps of how to establish an MBS link between the terminal and the base station are not provided in the current prior art, that is, there is no provision for the terminal and the network side (such as the base station and gateway) to obtain the MBS key (including MAK, Specific methods of MGTEK and MTK)
Therefore, it is impossible to solve the problem of how and when the terminal, base station and gateway obtain the MBS key, and how to update the MAK of the terminal and the network side after the subscribed MBS multicast group changes, and the problem of how to update the MAK when the subscribed MBS multicast group changes. After the question of how to update the MGTEK on the terminal and network side

Method used

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  • Method, network and terminal device for obtaining multicast and broadcast service secret key
  • Method, network and terminal device for obtaining multicast and broadcast service secret key
  • Method, network and terminal device for obtaining multicast and broadcast service secret key

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Embodiment Construction

[0099] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0100] In the present invention, the specific method of how to obtain the MBS key (including MAK, MGTEK and MTK) at the terminal and the network side is provided, as well as the specific method of updating the MAK, MGTEK and GKEK used to encrypt the MGTEK, so as to ensure that the network The side can encrypt MBS data with the correct key, and the terminal can decrypt the data with the correct key to obtain the desired data.

[0101] The first embodiment of the present invention is described in detail below. The first embodiment of the present invention relates to a key acquisition method for MBS, and the specific process is as follows Figure 4 shown.

[0102] In step 401, the terminal performs a network access and authentication process. For specific details, r...

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Abstract

This invention discloses a method, a network and terminal device for obtaining and setting up ciphered keys of MBS, in which, a terminal gets MAK when registering MBS and asks for joining in MBS multi-broadcast group to the network side after obtaining said MAK, and the network side asks for authentication to the terminal and feeds back a safe alliance ID of the MBS multi-group to the terminal, which gets MGTEK from the network side according to the safe alliance ID and gets MTK according to the MAK and MGTEK.

Description

technical field [0001] The invention relates to the communication field, in particular to the multicast broadcasting technology in the WiMAX system. Background technique [0002] IEEE802.16 is a standard promulgated by the Institute of Electrical and Electronics Engineers (Institute of Electrical and Electronics Engineers, "IEEE" for short) in December 2001 for providing last-mile wireless broadband access in a metropolitan area network. [0003] At the same time, many equipment and component suppliers formed the organization of the Worldwide Interoperability for Microwave Access ("WiMAX") forum, the purpose of which is to ensure the compatibility and interoperability of broadband wireless access equipment. Operability, speeding up the deployment of broadband wireless networks based on the above-mentioned IEEE802.16 series standards. Therefore, under normal circumstances, a system that implements wireless broadband access specified in the 802.16 series standards is called a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L9/08H04L29/06H04L12/18
Inventor 何贤会吴建军
Owner XFUSION DIGITAL TECH CO LTD