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Method for canceling continuous switch from TDCDMA to other networks in HLR amalgamation mode

A technology of handover cancellation and integration, applied in the field of communications, can solve the problem of inability to automatically switch GSM networks, and achieve the effect of easy deployment and implementation

Inactive Publication Date: 2008-09-17
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In this way, after this kind of dual-mode dual-standby terminal moves to an area without TDCDMA network coverage, it cannot automatically switch to the GSM network and use GSM resources to continue the call

Method used

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  • Method for canceling continuous switch from TDCDMA to other networks in HLR amalgamation mode
  • Method for canceling continuous switch from TDCDMA to other networks in HLR amalgamation mode
  • Method for canceling continuous switch from TDCDMA to other networks in HLR amalgamation mode

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Embodiment Construction

[0040] Figure 1A and Figure 1B Respectively, the present invention uses the fusion HLR to realize the basic handover and subsequent handover from TDCDMA to GSM.

[0041] Figure 1A It shows the system structure for realizing the basic handover from TDCDMA to GSM in the way of HLR integration, including mobile terminal, TDCDMA network and GSM network. in:

[0042] The GSM network 15 enables access and call handling of the GSM part of the mobile terminal.

[0043] TDCDMA network includes:

[0044] A radio network controller (RNC) 12 is used to manage the wireless connection of the TDCDMA network, and the TD part of the mobile terminal is accessed under the RNC;

[0045] TDMSC (Time Division Mobile Switching Center) 13 is connected with RNC, HLR and GSM network gateway office for realizing calling and switching control functions; and

[0046] Home location register (HLR), connected with TD-MSC and GSM network, applied to TDCDMA and GSM network at the same time, stores the c...

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Abstract

Provided is a method for canceling post-switching of TDCDMA to other networks in an HLR amalgamation manner, wherein, a double-module double-standby terminal builds a TDCDMA network call, and the terminal is switched from TDMSC A to TDMSC B, an RNC under the TDMSC B judges that the terminal need to be switched to a network A and notifies the TDMSC B of switching, the TDMSC B notifies the TDMSC A of switching again, the switching are marked as the switching to a GSM network; TDMSC A inquires a roaming number of the terminal in the network A from an HLR, a call is initiated to the network A by using the number as the called number, and the call is marked as an initiated called of switching to the network A; during processing the call, if the RNC finds that the TDCDMA network signal is resumed, the TDMSC B notifies the TDMSC A of canceling the switching; the TDMSC A releases the call to the network A and returns a switch canceling response to the RNC, the terminal unceasingly performs the cal in the TDCDMA network. The invention is capable of switching the terminal to other networks and continuing the current call under the case that the signal is attenuated after the terminal is switched from the TDCDMA network.

Description

technical field [0001] The invention relates to a method for terminal access in the communication field, in particular to a method for switching from TDCDMA to other networks. Background technique [0002] As a third-generation mobile communication technology, TDCDMA will coexist with a large number of mature GSM networks in the initial stage of networking, and TDCDMA network coverage will often appear as an isolated island in the GSM network. Therefore, realizing the handover from TDCDMA to GSM system is one of the key factors to improve the service quality of the system. [0003] According to the agreement, the dual-mode mobile phone should have the ability to measure the signal quality of different system cells and complete the inter-system handover through the inter-system relocation standard protocol process. However, a current TDCDMA and GSM dual-mode dual-standby mobile phone cannot detect the signal quality of GSM adjacent cells while using the TDCDMA (Time Division...

Claims

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Application Information

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IPC IPC(8): H04Q7/38H04B7/26
Inventor 刘竞翔吕剑明刘建业刘卫东王炜吴近峰张慧庞秀峰姜建中余磊
Owner ZTE CORP
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