Rate adjustment method and equipment used for TrFO voice calling switching

A technology for rate adjustment and voice calls, which is applied in multiple use of transmission paths, network traffic/resource management, digital transmission systems, etc. It can solve problems such as low initial rate and frame loss, and achieve the effect of avoiding frame loss

Active Publication Date: 2011-08-03
HUAWEI TECH CO LTD
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  • Abstract
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AI Technical Summary

Problems solved by technology

[0004] After handover, if the TrFO voice call with multi-rate codec is adopted after handover, and if the non-handover side with multi-rate codec adopts a higher rate before handover, since the initial rate after handover is lower, if If rate-related processing is not performed when switching, it may cause frame loss

Method used

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  • Rate adjustment method and equipment used for TrFO voice calling switching
  • Rate adjustment method and equipment used for TrFO voice calling switching
  • Rate adjustment method and equipment used for TrFO voice calling switching

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Embodiment Construction

[0023] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0024] figure 1 It is a schematic flow diagram of the method of the first embodiment of the present invention, including:

[0025] Step 11: receiving a message for handover, the handover forms a multi-rate codec TrFO call after the handover;

[0026] Step 12: Send a message for adjusting the rate to the non-switching side adopting multi-rat...

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Abstract

The invention provides a rate adjustment method and rate adjustment equipment used for transcoder free operation (TrFO) voice calling switching. The method comprises the following steps of: receiving a message used for switching, wherein the switching forms TrFO calling after switching; and sending a message used for adjusting a rate to a non-switching side so that the non-switching side adjusts the rate of the non-switching side to be an initial rate after receiving the message used for adjusting the rate. The method and the equipment of the embodiment of the invention can avoid the problem of frame loss when switching.

Description

technical field [0001] The invention relates to mobile communication technology, in particular to a rate adjustment method and equipment applied to TrFO voice call switching. Background technique [0002] With the continuous evolution of IP-based telecommunication networks, the A interface between the Base Station Subsystem (BSS) of the 2G network and the Core Network of the Circuit Switched (CS) domain is also facing the challenge of Time Division Multiplexing (Time Division Multiplexing) , TDM) bearer evolution to IP bearer. In the 3GPP R8 version, the A interface defines the IP bearer mode, one of which is that the A interface bears compression codecs, which can reduce the number of end-to-end codecs to improve voice quality and save transmission resources on the A interface. There are many types of compression codecs on the A interface, including multi-rate codecs, which include Adaptive Multi-Rate (AMR) codecs and broadband adaptive multi-rate (AdaptiveMulti-Rate Wideb...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L1/00H04W28/22
CPCH04W36/0011H04W28/22H04W36/00H04W28/04H04L5/1446
Inventor 汪红星
Owner HUAWEI TECH CO LTD
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