A method and device for cscf-based media coding format conversion

A technology of media encoding and format conversion, applied in electrical components, transmission systems, etc., can solve the problems of business process impact and reduce business processing efficiency.
CN104580166BActive Publication Date: 2018-08-31DATANG MOBILE COMM EQUIP CO LTD
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Patents(China)
Current Assignee / Owner
DATANG MOBILE COMM EQUIP CO LTD
Publication Date
2018-08-31

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Abstract

The embodiment of the present invention provides a method and device for media coding format conversion based on CSCF. The method includes: when the media coding format negotiation between the called terminal UE2 and the calling terminal UE1 fails, receiving the call session control entity CSCF The first transaction message MESSAGE1; assign the called media coding format MRF_SDP1 to the UE2 according to the MESSAGE1; receive the second transaction message MESSAGE2 sent by the CSCF; assign the calling media coding format MRF_SDP2 to the UE1 according to the MESSAGE2; Establish an association relationship between the MRF_SDP1 and the MRF_SDP2. The embodiments of the present invention are used to improve the session success rate between terminals.
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Description

technical field

[0001] The invention relates to the technical field of mobile communication, in particular to a CSCF-based media coding format conversion method and a CSCF-based media coding format conversion device. Background technique

[0002] IMS (IP Multimedia Subsystem IP, IP Multimedia Subsystem) is a brand-new multimedia service form, which can meet the needs of more novel and more diversified multimedia services of current terminal customers. At present, during the establishment of an IMS multimedia session, SIP (Session Initiation Protocol, Session Initiation Protocol) messages are used to carry SDP (Session Description Protocol, Session Description Protocol) for media negotiation between terminals. If both terminals support unique One of the media encoding formats and they are not the same, the media negotiation will fail and the establishment of the multimedia session will fail.

[0003] refer to figure 1 A schematic diagram of a network topology for establishi...

Claims

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