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.

Active Publication Date: 2018-08-31
DATANG MOBILE COMM EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, the above-mentioned function of using AS to implement media negotiation between terminals will have a great impact on other original business processes. The realization of all services needs to care about SDP information, which puts relatively strict requirements on AS, and in In the protocol architecture, CSCF is the network element responsible for relevant media authorization and media information authentication, so using AS to implement this function is contrary to the relevant theoretical basis in the protocol architecture that AS only handles business
In addition, AS realizes this service function, which will cause AS to not only need to care about signaling information, but also need to care about media negotiation data, which reduces the efficiency of service processing

Method used

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

Examples

Experimental program
Comparison scheme
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Embodiment 1

[0097] refer to figure 2 , which shows a flow chart of the steps of Embodiment 1 of a method for converting CSCF-based media encoding formats according to the present invention, which may specifically include the following steps:

[0098] Step 101, when the media coding format negotiation between the called terminal UE2 and the calling terminal UE1 fails, the first transaction message MESSAGE1 sent by the call session control entity CSCF is received;

[0099] Step 102, assigning the called media encoding format MRF_SDP1 to the UE2 according to the MESSAGE1;

[0100] In a preferred embodiment of the present invention, the MESSAGE1 may include the media encoding format SDP2 of UE2 and the first extended header field Transcode1, and the Transcode1 may include the first marking instruction indicator1; the step 102 may include the following substeps :

[0101] Sub-step S11, judging whether the Transcode1 includes the indicator1; if so, execute sub-step S12;

[0102] Sub-step S1...

Embodiment 3

[0298] refer to Image 6 , which shows a flow chart of the steps of Embodiment 3 of a method for converting CSCF-based media coding formats according to the present invention, which may specifically include the following steps:

[0299] Step 301, when the media encoding format negotiation between the called terminal UE2 and the calling terminal UE1 fails,

[0300] Receive the first transaction message MESSAGE1 sent by the call session control entity CSCF;

[0301] Step 302, allocate the called media encoding format MRF_SDP1 to the UE2 according to the MESSAGE1;

[0302] Step 303, receiving the second transaction message MESSAGE2 sent by the CSCF;

[0303] Step 304, assigning the calling media encoding format MRF_SDP2 to the UE1 according to the MESSAGE2;

[0304] Step 305, establishing an association relationship between the MRF_SDP1 and the MRF_SDP2;

[0305] Step 306, receiving the third transaction message MESSAGE3 sent by the CSCF; the MESSAGE3 includes the fifth exten...

Embodiment 4

[0368] refer to Figure 9 , which shows a structural block diagram of Embodiment 1 of a CSCF-based media coding format conversion device according to the present invention, which may specifically include the following modules:

[0369] The first receiving module 401 is configured to receive the first transaction message MESSAGE1 sent by the call session control entity CSCF when the media coding format negotiation between the called terminal UE2 and the calling terminal UE1 fails;

[0370] The first allocation module 402 is configured to allocate the called media encoding format MRF_SDP1 to the UE2 according to the MESSAGE1;

[0371] In a preferred embodiment of the present invention, the MESSAGE1 includes the media encoding format SDP2 of UE2 and the first extended header field Transcode1, and the Transcode1 includes the first marking instruction indicator1; the first distribution module 402 may include the following module:

[0372] The first judging submodule is used to ju...

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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.

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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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L29/06
CPCH04L65/1016H04L65/765
Inventor 吴斌高陆军
Owner DATANG MOBILE COMM EQUIP CO LTD
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