Method and device of converting media coding manner

A technology for media encoding and mode conversion, applied in the field of data communication, which can solve the problems of stagnant system functions, lack of assistance in media conversion, and inability to provide ideal services for multimedia terminals.

Active Publication Date: 2014-11-19
DATANG MOBILE COMM EQUIP CO LTD
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0012] It can be seen from the above process that the current SBC does not have the ability to assist media conversion, thus increasing the probability of session establis

Method used

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  • Method and device of converting media coding manner
  • Method and device of converting media coding manner
  • Method and device of converting media coding manner

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Embodiment Construction

[0067] The embodiment of the present invention designs an SBC that can participate in media negotiation, and implements the format when the media encoding types of the calling user equipment and the called user equipment are different through the negotiation of the session description protocol (Session Description Protocol, SDP). Conversion, so that a session connection is successfully established between the calling user equipment and the called user equipment, effectively avoiding the problem of session establishment failure caused by this situation, thereby achieving the purpose of improving the interconnection and intercommunication capabilities between users.

[0068] Preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0069] refer to Figure 4 As shown, in the embodiment of the present invention, when converting the media coding mode, the SBC performs the following operations:

[0070] Step 40...

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Abstract

The invention relates to the field of communication and discloses a method and a device of converting a media coding manner for improving a success rate of session setup. The method comprises the following steps of when an SBC (Session Border Controller) receives an SDP (Session Description Protocol) negotiation request for the first time, compensating first media type information of a calling party, comparing the first media type information before compensation and second media type information selected by a called user based on the first media type information after compensation, when determining that the two have no intersection, selecting a first media coding manner used by the calling party based on the first media type information before compensation, selecting a second media coding manner used by the called party based on the second media type information, and converting the media coding manner of a media data stream between the calling party and the called party based on the first media coding manner and the second media coding manner. According to the method and the device, the problem of incapability of establishing the session due to failure of media format negotiation is avoided, and the success rate of session setup is improved, so that the system service performance is improved.

Description

technical field [0001] The present invention relates to the technical field of data communication, in particular to a method and device for converting media encoding modes. Background technique [0002] Analog signal digitization (Voice over Internet Protocol, VoIP) technology realizes the convenient transmission of voice, video and data services on the network. The session border controller (Session Border Controller, SBC) placed on the side of the network core switching device is used to solve the security, heterogeneous network interconnection, network address translation (Network Address Translation, NAT) traversal and quality of service that exist when deploying VoIP services (QOS) and other issues, that is, the SBC controls the session based on the Session Initiation Protocol (Session Initiation Protocol, SIP) protocol at the network border to a certain extent. [0003] The current SBC can be deployed between different IP Multimedia Subsystem (IP Multimedia Subsystem,...

Claims

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Application Information

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IPC IPC(8): H04L29/06
Inventor 吴鹏程
Owner DATANG MOBILE COMM EQUIP CO LTD
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