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Method, control device and system for local exchange

A technology of local switching and control devices, applied in the field of network communication

Active Publication Date: 2014-06-25
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For the adaptive multi-rate codec (Adaptive Multi-Ratecodec, AMR) voice version, since the MS and the base transceiver station (Base Transceiver Station, BTS) do not use a single rate but a rate set to activate (MS and BTS Negotiate the rate type according to the voice quality of the uplink and downlink, and select an appropriate rate for communication), which will result in that although both MSs use the AMR voice version, because the rate sets used by the two are different, when performing local switching No voice after local switching

Method used

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  • Method, control device and system for local exchange

Examples

Experimental program
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Embodiment 1

[0017] This embodiment provides a local switching method, especially a local switching method supporting AMR speech coding. The method is described in detail below with reference to the drawings.

[0018] Reference figure 1 , figure 1 Shown is a local switching method according to an embodiment of the present invention, and the method includes:

[0019] Step S101: Detect whether the voice versions of the adaptive multi-rate codec used by the devices to be exchanged locally are the same, and whether the rate sets of the voice versions of the adaptive multi-rate codec have intersections;

[0020] The equipment for local switching includes mobile stations and base transceiver stations.

[0021] This step can be completed by the BSC device, namely the Base Station Controller (BSC). To modify the voice version, you can use the switch or mode modification method to modify the AMR voice version of the two devices to be the same. Among them, switch or mode modification The specific implement...

Embodiment 2

[0029] This embodiment provides a local switching method, especially a local switching method supporting AMR speech coding. The method is described in detail below with reference to the drawings.

[0030] Reference figure 2 , The local exchange method according to another embodiment of the present invention is shown, and the method includes:

[0031] Step S201 detects whether the AMR voice versions used by the MSs to be locally exchanged are the same, and whether the rate sets of the AMR voice versions have intersections. If the AMR voice versions are the same and the rate sets of the AMR voice versions have intersections, perform the following step 203;

[0032] Step 202: If the AMR voice versions are not the same, modify the AMR voice versions of the two MSs to be the same. If the rate sets of the AMR voice versions do not have an intersection, modify the rate sets of the AMR voice versions of the two MSs to at least part of the rate type Same; this step is performed by BSC. In ...

Embodiment 3

[0036] This embodiment provides a local switching method, especially a local switching method supporting AMR speech coding. The method is described in detail below with reference to the drawings.

[0037] Reference image 3 , The local exchange method according to another embodiment of the present invention is shown, and the method includes:

[0038] Step S301 detects whether the AMR voice versions used by the MSs that need to perform local exchange are the same, if they are the same, perform the following steps, if they are not the same, modify the AMR voice versions of the two MSs to be the same;

[0039] Step S302 is to detect whether there is an intersection in the rate set of the AMR voice versions used by the MSs that need to be exchanged locally. If yes, proceed to the following step S303, if not, modify the rate sets of the AMR voice versions of the two MSs to at least part of the rate type Same; the above steps are executed by BSC, and the specific method is the same as tha...

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Abstract

The invention provides a method, control device and system for local exchange, wherein the method comprises the following steps: detecting whether voice versions of self-adaptive multirate coding and decoding devices used by devices needing to conduct local exchange are the same and whether the rate sets of the voice versions of the self-adaptive multirate coding and decoding devices have an intersection; if the voice versions of the self-adaptive multirate coding and decoding devices are the same and the rate sets of the voice versions of the self-adaptive multirate coding and decoding devices do not have the intersection, revising the rate sets of the voice versions of the self-adaptive multirate coding and decoding devices and enabling the rate sets to have the intersection; establishing local exchange between the devices with the same voice version of the self-adaptive multirate coding and decoding devices, wherein the rate sets have the intersection. According to the method, control device and system for local exchange, an MS utilizes AMR voice versions to conduct local exchange while full play is given to the function of an AMR to improve voice quality.

Description

Technical field [0001] The present invention relates to the field of network communication, and in particular to a method, control device and system for local exchange. Background technique [0002] With the development of the Global System for Mobile Communications (GSM) network, the coverage of GSM network applications has shifted from coverage in dense urban areas to coverage in remote areas. These remote areas are characterized by scattered locations, but relatively concentrated personnel, and calls are generally concentrated between local users. In this kind of coverage, the use of local switching technology can greatly reduce the operator's network construction costs. [0003] Since there is no need to go through the code converter and the rate adaptation unit (TRAU) unit for rate adaptation when performing local exchange, this requires the rate type used by the two mobile stations (Mobile Station, MS) for local exchange Must be consistent, that is, two MSs must use Full Ra...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W24/02H04W36/08H04W88/16
Inventor 胡小群姚建辉柳军刘绍峰
Owner HUAWEI TECH CO LTD
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