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CSCF-based media encoding format conversion method and device

A technology of media encoding and format conversion, applied in electrical components, transmission systems, etc., can solve problems such as reducing business processing efficiency and business process impact

Active Publication Date: 2015-04-29
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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  • CSCF-based media encoding format conversion method and device
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Examples

Experimental program
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Embodiment 1

[0103] refer to figure 2 , shows a flow chart of steps of Embodiment 1 of a CSCF-based media coding format conversion method of the present invention, which may specifically include the following steps:

[0104] Step 101, when the media coding format negotiation between the called terminal UE2 and the calling terminal UE1 fails, a first transaction message MESSAGE1 sent by the call session control entity CSCF is received;

[0105] Step 102: Allocate the called media coding format MRF_SDP1 to the UE2 according to the MESSAGE1;

[0106]In a preferred embodiment of the present invention, the MESSAGE1 may include the media encoding format SDP2 of the 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 sub-steps :

[0107] Sub-step S11, determine whether the Transcode1 includes the indicator1; if so, execute sub-step S12;

[0108] Sub-step S12, using the SDP2, the UE2...

Embodiment 3

[0305] refer to Image 6 , shows a flow chart of steps of Embodiment 3 of a CSCF-based media coding format conversion method of the present invention, which may specifically include the following steps:

[0306] Step 301, when the media coding format negotiation between the called terminal UE2 and the calling terminal UE1 fails,

[0307] receiving the first transaction message MESSAGE1 sent by the call session control entity CSCF;

[0308] Step 302: Allocate the called media coding format MRF_SDP1 to the UE2 according to the MESSAGE1;

[0309] Step 303, receiving the second transaction message MESSAGE2 sent by the CSCF;

[0310] Step 304: Allocate the calling media coding format MRF_SDP2 to the UE1 according to the MESSAGE2;

[0311] Step 305, establishing an association relationship between the MRF_SDP1 and the MRF_SDP2;

[0312] Step 306, receiving the third transaction message MESSAGE3 sent by the CSCF; the MESSAGE3 includes a fifth extended header field Transcode5; the...

Embodiment 4

[0375] refer to Figure 9 , shows a structural block diagram of Embodiment 1 of a CSCF-based media coding format conversion apparatus of the present invention, which may specifically include the following modules:

[0376] 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;

[0377] a first allocation module 402, configured to allocate the called media coding format MRF_SDP1 to the UE2 according to the MESSAGE1;

[0378] In a preferred embodiment of the present invention, the MESSAGE1 includes the media encoding format SDP2 of the UE2 and the first extended header field Transcode1, and the Transcode1 includes the first marking instruction indicator1; the first allocation module 402 may include the following sub-headers Module:

[0379] The first judgment submodule is used for judgi...

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Abstract

The embodiment of the invention provides a CSCF (Call Server Control Function)-based media encoding format conversion method and a device. The method comprises the following steps: when the consultation of a media encoding format of a called terminal UE2 and a calling terminal UE1 fails, receiving a first transactional message MESSAGE1 which is transmitted by a CSCF; distributing a called media encoding format MRF_SDP1 (Media Resource Function_Session Description Protocol) to the UE2 according to the MESSAGE1; receiving a second transactional message MESSAGE2 which is transmitted by the CSCF; distributing a calling media encoding format MRF_SDP2 to the UE1 according to the MESSAGE2; establishing the association relationship between the MRF_SDP1 and the MRF_SDP2. The embodiment of the invention is used for improving the success rate of sessions between terminals.

Description

technical field [0001] The present invention relates to the technical field of mobile communication, in particular to a method for converting a media coding format based on CSCF and a device for converting a media coding format based on CSCF. Background technique [0002] IMS (IP Multimedia Subsystem IP, IP Multimedia Subsystem) is a brand-new multimedia service form, which can meet the needs of current terminal customers for more novel and diversified multimedia services. Currently, in the process of establishing a multimedia session in IMS, media negotiation between terminals relies on SIP (Session Initiation Protocol, Session Initiation Protocol) message carrying SDP (Session Description Protocol, Session Description Protocol) for media negotiation between terminals. If the media encoding format is different, the media negotiation will fail, and the establishment of the multimedia session will fail. [0003] refer to figure 1 The shown schematic diagram of a network top...

Claims

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Application Information

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Patent Type & Authority Applications(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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