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Method and system for voice communication between different systems in all internet protocol network

An IP network, heterogeneous system technology, applied in the direction of network traffic/resource management, wireless communication, electrical components, etc.

Active Publication Date: 2014-06-18
CHINA TELECOM CORP LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when performing intercommunication between systems, such as the intercommunication between the 3GPP system and the 3GPP2 system, due to the different speech coding technologies of the two networks, it is still impossible to directly use TrFO to realize the intercommunication of broadband voice services between the systems

Method used

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  • Method and system for voice communication between different systems in all internet protocol network
  • Method and system for voice communication between different systems in all internet protocol network
  • Method and system for voice communication between different systems in all internet protocol network

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0056] Embodiment 1: The coding type conversion is completed in the GMSCe at the calling side.

[0057] The GMSCe at the calling side receives the list of speech coding capabilities supported by the calling user who initiated the voice call, translates it into a list of speech coding capabilities supported by the calling user based on the coding mode of the called side, and sends it to the GMSCe at the called side;

[0058] When the called side GMSCe preferentially selects wideband speech coding, it is determined by the called side according to the speech coding capability supported by the called user and the received list of speech coding capabilities supported by the calling user based on the coding mode of the called side. The voice coding method supported by both the calling party and the called party based on the coding method of the called side, and send it back to the GMSCe at the calling side;

[0059] The GMSCe at the calling side translates the voice coding mode supp...

Embodiment approach 2

[0061] Embodiment 2: The coding type conversion is completed in the GMSCe at the called side.

[0062] The GMSCe at the calling side receives the voice coding capability list supported by the calling user who initiated the voice call, and sends it to the GMSCe at the called side;

[0063]The GMSCe at the called side translates the received speech coding capability list supported by the calling user into a list of speech coding capabilities supported by the calling user based on the coding mode of the called side. The speech coding capability supported by the user and the translated list of speech coding capabilities supported by the calling user based on the coding method of the called side determine the speech coding capabilities supported by the called side based on the coding method of the called side. Speech coding method, and translate it into the speech coding method (possibly multiple methods) supported by both the calling party and the called party based on the coding ...

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Abstract

The invention relates to a method and a system for voice communication between different systems in all internet protocol network. The method comprises the following steps that a gateway mobile switching center (GMSCe) for a calling side and a called side determines a voice coding mode supported by both the calling side and called side based on a voice coding capacity list supported by calling users, a voice coding capacity list supported by called users and a coding capacity mapping relation between the calling side and the called side and informs a gateway media gate-way (GMGW) on the side, where the GMSCe to be subjected to coding type conversion is positioned, of the voice coding mode supported by both the calling side and called side, and the GMGW converts a voice signal to be sent to the other side into the voice coding mode supported by the other side according to the voice coding mode supported by both the calling side and called side. By the method and the system, broadband voice service can be communicated between different systems.

Description

technical field [0001] The present disclosure relates to the technical field of mobile communication, in particular, to a method and system for voice intercommunication between different systems in an all-IP network. Background technique [0002] At present, mobile networks mainly use traditional voice coding technology to carry voice services. There are many types of traditional voice coding technology, and the more common ones are: [0003] GSM (Global System for Mobile communications, Global System for Mobile Communications) / WCDMA (Wideband Code Division Multiple Access, Wideband Code Division Multiple Access) network: AMR (Adaptive Multi Rate, adaptive multi-rate); [0004] CDMA (Code Division Multiple Access) network: EVRC-A (Enhanced Variable Rate Codec A, Enhanced Variable Rate Codec A) and EVRC-B (Enhanced Variable Rate Codec B, Enhanced Variable Rate Codec B, Decoding B), where EVRC-A corresponds to voice service option3, and EVRC-B corresponds to voice service opt...

Claims

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Application Information

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IPC IPC(8): H04W28/06
Inventor 李文苡杜刚王庆扬曹磊赵晔
Owner CHINA TELECOM CORP LTD
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