Method for realizing concurrent voice business after inter-local-network switchover

A voice service and switching technology, applied in the direction of wireless communication services, nan, electrical components, etc., can solve the problem of low utilization rate of transmission resources, increased voice service delay and loss of voice signal quality, and does not specify specific methods for concurrent voice services, etc. question

Active Publication Date: 2008-06-18
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

And if there is no voice signal that needs to be transmitted during the call, for example, the calling party and the called party do not speak, the time slot corresponding to the call will also be occupied at this time, and the utilization rate of transmission resources is low;
[0022] 2. Since the encoding format of the air interface part and the TDM bearer part are different, that is, the voice signal format between the mobile station and the BSC is different from the voice signal f...

Method used

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  • Method for realizing concurrent voice business after inter-local-network switchover
  • Method for realizing concurrent voice business after inter-local-network switchover
  • Method for realizing concurrent voice business after inter-local-network switchover

Examples

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Embodiment 1

[0111] Embodiment 1: Combined with SIP message to realize concurrent voice service under IP bearer mode.

[0112] Such as Figure 4 As shown, when the mobile station where the inter-office handover occurs is used as the calling party, the method for concurrent voice service in this embodiment includes the following steps:

[0113] Steps 401-402. After the mobile station sends the calling request of the concurrent voice service to the SMSC through the BSC, the SMSC sends an Add Endpoint Request (ADD) message to MGW2, requesting MGW2 to create endpoint 2 for this call; MGW2 completes the creation of endpoint 2 Afterwards, by adding an endpoint response (ADD Reply) message, the endpoint identifier (TID), IP address and port number of the endpoint 2 are sent to the SMSC.

[0114] Steps 403-404. The SMSC sends the ADDSERV message carrying the MSID, the called number and the inter-office circuit identification to the AMSC, requesting the AMSC to initiate the calling process of the ...

Embodiment 2

[0144] Embodiment 2: Improve the existing message to realize the concurrent voice service under the IP bearer mode.

[0145] In this embodiment, an SDP information element is added to the existing ADDSERV message, addserv message, ISSETUP message and issetup message, and is used to transmit the IP address and port number of the endpoint established for this call.

[0146] Such as Image 6 As shown, when the mobile station where the inter-office handover occurs is used as the calling party, the method for concurrent voice service in this embodiment includes the following steps:

[0147] Steps 601-602. After the mobile station sends the calling request of the concurrent voice service to the SMSC through the BSC, the SMSC sends an ADD message to the MGW2, requesting the MGW2 to create the endpoint 2 of this call; Reply message, sending the TID, IP address and port number of endpoint 2 to SMSC.

[0148] Step 603.SMSC sends an ADDSERV message to AMSC, requesting AMSC to initiate ...

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Abstract

The method includes steps: (1) SMSC informs second MGW, which is connected to SMSC each other, to create second endpoint; second MGW returns address information of second endpoint back to SMSC; (2) SMSC requests AMSC to take part in this call, and sends address information of second endpoint to AMSC; based on request of SMSC, AMSC switches to the called party, and informs first MGW to create first endpoint, meanwhile sends address information of the second endpoint to first MGW; (3) first MGW establishes coincidence relation between first endpoint and second endpoint, and sends address information of first endpoint to AMSC; through SMSC, AMSC returns address information of the first endpoint to second MGW; MGW establishes coincidence relation between first endpoint and second endpoint. Under IP load supporting mode, the invention can realize concurrent voice service after switching between offices so as to raise use ratio of resources.

Description

technical field [0001] The invention relates to concurrent services in a wireless communication system, in particular to a method for realizing inter-office concurrent voice services. Background technique [0002] In the third generation (3G) communication system, the mobile station can also implement the voice service while performing the data service, and this situation is called concurrent service. Specifically, a user using a mobile station may receive a call from another user or call another user for voice communication when performing data services such as data download or web browsing. Similarly, when a user uses a mobile station to access the network and perform voice services, data services can also be sent concurrently. In the concurrent service, the user can first access the data service, and then concurrently issue the voice service; or firstly access the voice service, and then concurrently issue the data service. [0003] Since the location of the mobile stat...

Claims

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Application Information

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IPC IPC(8): H04Q7/22H04W4/00H04W36/00
Inventor 蒋砾
Owner HUAWEI TECH CO LTD
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