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Coding/decoding transition system and method

A conversion system and codec technology, which is applied in the direction of code conversion, transmission system, digital transmission system, etc., can solve the problems of inability to perform codec conversion, etc., and achieve the effect of ensuring business continuity and realizing interoperability

Active Publication Date: 2008-01-30
HUAWEI TECH CO LTD
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  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0015] The main purpose of the present invention is to provide a codec conversion system to overcome the shortcomings of the inability to perform codec conversion when the existing IMS network communicates with other IP networks, and to ensure the intercommunication of voice and video services between the IMS network and other IP networks

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  • Coding/decoding transition system and method
  • Coding/decoding transition system and method
  • Coding/decoding transition system and method

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Embodiment Construction

[0053] The core of the present invention is to identify the session signaling between the IMS network and other IP networks through the codec conversion control module located on the session signaling path between the IMS network and other IP networks, and determine when the codec needs to be performed according to the session signaling. Convert, and generate codec conversion information and pass it to the codec conversion execution module. After the codec execution module receives this information, it allocates codec conversion resources, and passes these resource description information to the codec conversion control module so that it can control the session. The media stream of the participant is routed to the codec conversion execution module, and then the codec conversion execution module uses the resource to complete the codec conversion of the user media stream.

[0054] In order to make those skilled in the art better understand the solution of the present invention, t...

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Abstract

The invention discloses a coding-decoding conversion system, comprising a coding-decoding conversion control module and a coding-decoding conversion execution module, wherein, the coding-decoding conversion control module which is arranged on an intercommunicating session signaling path of an IP multimedia subsystem network and other IP networks or IP multimedia subsystem networks of different operators is used for triggering the coding-decoding conversion function, generating coding-decoding conversion information and controlling session participator media stream to route to the coding-decoding conversion execution module; the coding-decoding conversion execution module is used for executing the coding-decoding conversion function according to the coding-decoding conversion information. The invention also discloses a coding-decoding conversion method. By utilizing the invention, the coding-decoding conversion between intercommunicating IMS network and other IP networks can be realized; the IP multimedia subsystem network can intercommunicate with other networks by voice and video service, which ensures the business continuity in network evolution process.

Description

technical field [0001] The present invention relates to the technical field of network communication, in particular to a system and method for codec conversion. Background technique [0002] IMS (IP Multimedia Subsystem, IP Multimedia Subsystem) is a subsystem proposed by 3GPP (Third Generation Partnership Projects, the Third Generation Partnership Project) to support IP multimedia services. Its core feature is through SIP (Session Initiation Protocol, session initiation protocol) The protocol implements functions such as establishment, maintenance and management of IP multimedia services, allowing operators to quickly and efficiently deploy multimedia services without depending on the network access mode and the type of terminal equipment, supporting fixed networks and 802.11, 802.15, 802.16, CDMA Any type of session on a wireless network such as (Code Division Multiple Access) or GSM (Global System for Mobile Communications) allows service providers to provide users with a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/56H03M7/00H04L12/46H04L29/06
Inventor 毛凌志施有铸黄世碧
Owner HUAWEI TECH CO LTD
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