Media control method and system in IMS (IP multimedia subsystem)

A media control and media technology, applied in the field of communication, can solve the problems of poor RTSP protocol support, difficult realization of media interaction control between user terminals and network sides, etc., and achieves the effect of ensuring integrity, small changes, and reducing difficulty.

Inactive Publication Date: 2011-06-08
CHINA MOBILE COMM GRP CO LTD
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  • Claims
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AI Technical Summary

Problems solved by technology

[0005] Embodiments of the present invention provide a media control method in an IMS system and the system thereof, which are used to solve the problem that the SIP protocol in the existing IMS system has poor support for the RTSP protocol, which makes it difficult to implement media interaction control between the user terminal and the network side.

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  • Media control method and system in IMS (IP multimedia subsystem)
  • Media control method and system in IMS (IP multimedia subsystem)
  • Media control method and system in IMS (IP multimedia subsystem)

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Embodiment Construction

[0020] Embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0021] In the embodiment of the present invention, the SIP protocol message is mapped to the RTSP protocol command for media interactive control; or, the RTSP control signaling information for media interactive control is carried in the message body of the SIP protocol message by extending the SIP protocol message, thereby according to The media interaction control signaling information carried in the message body of the SIP protocol message is used to generate a corresponding RTSP protocol command, so as to implement media interaction control in the IMS system.

[0022] Usually, the RTSP commands for media interaction control include:

[0023] DESCRIBE command: request the media description information of the RTSP path;

[0024] PLAY command: start playing streaming media data;

[0025] PAUSE command: temporarily stops the stream without releasing s...

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Abstract

The invention discloses a media control method and system in an IMS (IP multimedia subsystem), and the method comprises: an MCF (multicore framework) or a media control parsing entity set in the IMS receives an SIP message used for controlling the media service and sent by a user terminal concerning to requested media service, and maps the SIP message to a corresponding RTSP (real time streaming protocol) command or parses out the RTSP command from the SIP message according to a mapping relation between the SIP message and the RTSP command; then, the RTSP command obtained through mapping and parsing is sent to an MDF (main distribution frame), wherein the SIP message received by the media control parsing entity is sent to the media control parsing entity after the MCF receives the SIP message sent by the user terminal; and the MDF controls the media service requested by the user terminal according to the received RTSP command. According to the invention, media interactive control between the user terminal and a network side on the premise of not damaging completeness of the RTSP protocol can be supported.

Description

technical field [0001] The present invention relates to the communication field, in particular to a media control method and system in an IMS system. Background technique [0002] IP Multimedia Subsystem (IMS) is a session control system based on SIP protocol. The design of the IMS system adopts the form of layered architecture, which embodies the ideas of "separation of service and control" and "separation of control from access and bearer", so that different user terminals can use different wireless access technologies Or the wired access technology is connected to the IMS network to enjoy unified call control services and to use diversified multimedia value-added services. This hierarchical network architecture design lays the foundation for the interconnection of different networks and the integration of services. At present, IMS is widely recognized by the industry as the core technology of next-generation networks, and it is also an important way to solve the converg...

Claims

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Application Information

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IPC IPC(8): H04L29/06H04W80/10
CPCH04L29/06197H04L65/1006H04L65/1104
Inventor 王亚晨俞承志赵耀杨放春
Owner CHINA MOBILE COMM GRP CO LTD
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