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Method and apparatus for identifying and acquiring authority information in SDP protocol

A technology for identifying information and permissions, applied in the field of communication, can solve the problems of low efficiency, identification, complicated access to user permissions, long SIP messages, etc., and achieve the effect of simple implementation and avoiding too long SIP messages

Inactive Publication Date: 2010-08-11
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0013] For this method, identifying the user authority in the m lines expressing the media content will cause the SIP message to be too long, making it too complicated to identify and obtain the user authority, thus making the implementation efficiency of the solution too low

Method used

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  • Method and apparatus for identifying and acquiring authority information in SDP protocol
  • Method and apparatus for identifying and acquiring authority information in SDP protocol
  • Method and apparatus for identifying and acquiring authority information in SDP protocol

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Embodiment Construction

[0033] Below, the embodiments of the present invention will be described in detail with reference to the accompanying drawings.

[0034] 1. The method of identifying permission information:

[0035] (1) Use the attribute line "a=" to identify the authority information:

[0036] In one embodiment of the present invention, the attribute line "a=" in the SDP is used to identify the authority information, specifically:

[0037] Identify the authority attribute of the multicast service in the attribute part of the attribute row, and identify the authority information of the multicast service corresponding to the authority attribute in the attribute value part of the attribute row.

[0038] In order to introduce the above method more clearly, the implementation of the above method is described below with specific examples:

[0039] In a specific application, the specific form of the attribute line is:

[0040] a= : .

[0041] After using the method provided by the embodiment...

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PUM

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Abstract

The embodiment of the invention discloses a method and a device for identifying and obtaining authority information in the SDP protocol. The method for identifying the authority information includes identifying authority attribute of multicasting service in an attribute part of an attribute line and identifying authority information of the multicasting service corresponding to the authority attribute in attribute value part of the attribute line. The method for obtaining the authority information includes analyzing the session description protocol (SDP) messages to obtain the attribute line or group attribute line therein and obtaining the authority information from the attribute line or group attribute line. By adopting the embodiment of the invention, the problem that the SIP messages are too long due to identifying the authority information in a media line is avoided effectively, thus leading the realization of identifying the authority information to be more concise and effective.

Description

technical field [0001] The present invention relates to the field of communication technology, and in particular to a method and device for identifying and acquiring authority information in a session description protocol (Session description protocol, SDP). Background technique [0002] In mobile communication, the IP multimedia subsystem (IP multimedia Subsystem, IMS) is the Wideband Code Division Multiple Access (WCDMA) network added in the third generation mobile communication standardization partnership project (3GPP) R5 phase superimposed on the existing There is a subsystem on the packet domain, which uses the packet domain as the bearer channel for upper-layer control signaling and media transmission, and introduces Session Initiation Protocol (SIP) as a service control protocol. Using SIP is simple, easy to expand, and media combination It provides rich multimedia services by separating service control from bearer control. In the overall framework of the IMS, it ma...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L29/06H04W4/06H04W4/08
CPCH04L65/1006H04L63/10H04L63/168H04L29/06197H04L65/1104
Inventor 钟剑锋彭招君王丰
Owner HUAWEI TECH CO LTD
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