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Method for obtaining relation of channel and medium, channel information sending method and related apparatus

A technology of session description protocol and channel information, applied in the network field

Inactive Publication Date: 2011-08-31
惠州市超越咨询服务有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006]Currently in TISPAN's BC service process, the service request initiated by UE is related to the service package. A service package contains one or more services (channels), and a The service (channel) contains multiple media components (audio, video, etc.), and the SDP carried in the service request will contain the media description information of all services in the service package. If the corresponding relationship between the channel and the media component is not identified, the network entity cannot target The resources required for a certain channel to be correctly calculated will be reserved for the sum of all resources of all media, resulting in a serious waste of resources

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  • Method for obtaining relation of channel and medium, channel information sending method and related apparatus
  • Method for obtaining relation of channel and medium, channel information sending method and related apparatus
  • Method for obtaining relation of channel and medium, channel information sending method and related apparatus

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Embodiment Construction

[0026] In Embodiment 1 of the present invention, a method for obtaining the relationship between channels and media in SDP is proposed, and the channel information is described through attribute lines to associate the relationship between channels and media. The specific methods may include:

[0027] (1) Method 1: identify the relationship between the channel and the media through the attribute line "a=".

[0028] Use a= : .

[0029] Wherein attribution is used to identify IPTV BC service information, which can be a character set or others, and value is used to identify channel identification information, such as channel name or channel number, etc., which can be a number, a uniform resource identifier (URI), a uniform resource locator (URL ), charset, token or other. In all the embodiments of the present invention, the channel attribute row refers to the attribute row describing the channel information through the attribute row; the default channel attribute row re...

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Abstract

The present invention discloses a sending / receiving method used for gaining relationship between channel and medium in a session description protocol SDP, wherein the method comprises the steps as follows: the receiver receives the message which contains the channel information and is sent by a sender; the message describes the channel information by attribute lines; the receiver gains the relationship between the channel and the medium according to the message. The method and the equipment achieve the description on the channel information and the correlation between the BC service channel and the medium in an IMS-based IPTV system in a way of extending the attribute.

Description

technical field [0001] The present invention relates to the field of network technology, and in particular to a method and device for acquiring the relationship between channels and media in SDP (Session Description Protocol, Session Description Protocol). Background technique [0002] IP Multimedia Subsystem (IP Multimedia Subsystem, IMS) is the third generation mobile communication standardization partnership project (3rd Generation Partnership Project, 3GPP) R5 phase added Wideband Code Division Multiple Access (WCDMA) network superimposed on A subsystem above the existing packet domain uses the packet domain as the bearer channel for upper-layer control signaling and media transmission, and introduces the Session Initiation Protocol (Session Initiation Protocol, SIP) protocol as the service control protocol. Using SIP is simple and easy to expand , The characteristics of convenient media combination, provide rich multimedia services by separating service control from be...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L29/06H04N21/235
CPCH04L65/4076H04L65/1016H04N21/64322H04L29/06455H04L29/06217H04L65/611
Inventor 彭招君王丰
Owner 惠州市超越咨询服务有限公司
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