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A method for security handling in a wireless access system supporting multicast broadcast services

A wireless access system and multicast broadcast service technology, which is applied in broadcast system control, broadcast service distribution, security devices, etc., and can solve problems such as unsatisfactory user experience

Inactive Publication Date: 2009-06-17
ALCATEL LUCENT SAS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0027] - this is not satisfactory in terms of user experience since a specific WEB access should be implemented to retrieve such keys,

Method used

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  • A method for security handling in a wireless access system supporting multicast broadcast services
  • A method for security handling in a wireless access system supporting multicast broadcast services
  • A method for security handling in a wireless access system supporting multicast broadcast services

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Embodiment Construction

[0043] By way of example, the invention will be described more particularly below with respect to its application to WiMAX technology.

[0044] In this example, the present invention can also be explained as follows.

[0045]This invention proposes a flexible framework for subscribing to WiMAX MBS service streams, which is not based on a dedicated MAK proprietary distribution framework, but uses MAK (MBS Authentication Key) and MGTEK (Multicast Group Traffic Encryption Key) to encrypt the MBS channel flow.

[0046] The present invention proposes to avoid using a MAK distribution framework outside the WiMAX area.

[0047] The present invention proposes to avoid using the MAK entirely and to set the MAK statically and permanently in the MS. For example, the MAK can be factory set to 0; this key is never updated and remains at 0.

[0048] The present invention proposes that MGTEK is then used for traffic encryption and user content subscription management.

[0049] exist Fi...

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Abstract

One object of the present invention is a method for security handling in a wireless access system supporting Multicast Broadcast Services MBS, said method comprising the steps of: upon request by a Mobile Station MS for distribution of MBS keying data for an MBS Service Flow, checking in the Access Service Network ASN of said system if access to said MBS Service is authorized for said MS, and, if access to said MBS Service is authorized for said MS, authorizing said distribution of MBS keying data to said MS.

Description

technical field [0001] The present invention generally relates to wireless or mobile communication networks and systems. Background technique [0002] Detailed descriptions of such networks and systems can be found in the literature, especially in technical specifications published by standardization bodies. [0003] Examples of networks and systems to which the present invention is particularly (but not exclusively) applicable use WiMAX technology. A description of WiMAX technology can be found inter alia in the IEEE 802.16e and WiMAX Forum Standard Specifications. [0004] In phase 2 of the technical specification "WiMAX End-to-End NetworkSystems Architecture" published by the WiMAX Forum figure 1 In, the WiMAX network reference model is reviewed. A mobile station MS (also called subscriber station SS, sometimes denoted MSS) accesses a connection service network CSN via an access service network ASN. An ASN is defined as the set of network functions required to provide...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W4/06H04H60/23H04L29/06
CPCH04L63/065H04W12/08H04W12/04H04L12/189H04W12/041H04W12/0431H04W12/0433H04W12/082
Inventor A·热尔马诺C·巴拉加斯A·孔特
Owner ALCATEL LUCENT SAS