WO2008119220A1

WO2008119220A1 - A method of switching between networks of different modes for a dual-mode dual-standby terminal during dual-standby

Info

Publication number: WO2008119220A1
Application number: PCT/CN2007/003933
Authority: WO
Inventors: Wei Ma
Original assignee: Zte Corporation
Priority date: 2007-04-03
Filing date: 2007-12-29
Publication date: 2008-10-09
Also published as: CN101031160A; CN100499932C

Abstract

The present invention provides a method of switching between networks of different modes for a dual-mode dual-standby terminal during dual-standby. When the user standing by in a first network needs to switch to a second network, the user standing by in the other network of the terminal is first disactivated; and then the terminal performs the operation of switching the user from the first network to the second network using the communication module of the second network; and when the user has successfully connected to the second network, the connection of the user standing by in the first network is released, and thereby the switching of the user from the first network to the second network is finished. Moreover, when a service in a certain network comes into an area without the network, the switching can be done efficiently, thereby avoiding service interruption. The present invention has a good practical value because there is no need for an additional RF module and the standby number will not be abnormally interrupted during a service.

Description

Method for switching between different mode networks when dual mode dual standby terminal double standby

Technical field

The present invention relates to the field of wireless communications, and in particular, to a method for switching between different mode networks when dual mode dual standby terminals are dual standby. Background technique

With the development of the third generation mobile communication technology, third-generation mobile technologies such as TD-SCDMA, CDMA, and WCDMA have gradually entered a practical stage. However, due to the inevitable problems of network coverage at the beginning of the third generation of mobile technology, there is a need to support second generation mobile communication technologies on the third generation communication terminals. At the same time, with the development of technologies such as wireless local area networks, there is an urgent need for terminals to simultaneously support two or more modes of communication terminals. Dual-mode and multimode terminals have recently been produced by many equipment vendors and are also used by some operators.

For the third generation of mobile technology construction, 3G network and 2G network coexist and 3G network coverage is not perfect; 3G network terminals usually support two network access technologies. In different network environments, the terminal selects different modes of network access. In order to implement network switching in the terminal standby process, the method of network switching between terminals in different modes is defined in TS23.009 in 3GPP (3rd Generation Mobile Communication Partner Program). Based on the definition of the document, the dual-mode single standby terminal uses the radio module of another mode to perform inter-frequency measurement between different access technologies during the standby mode of a certain mode, and sends the measurement data to the access network system; The network access system determines whether network switching between different mode networks is required. When a handover is required, the terminal sends a message to the terminal to notify the terminal to use the current mode radio module and the other mode radio module to interact with the network to complete inter-network handover of different mode networks.

However, for dual-mode dual standby terminals, there is one RF module for each mode. In the case of dual standby, each RF module is used by a mode baseband module to achieve standby on different networks. To implement inter-frequency measurement between different network access technologies and to complete network switching between different mode networks, it is impossible to use another mode of RF module. Therefore, in the case of the current dual-mode dual standby terminal, in the case of dual standby, if the service under a certain mode network suddenly enters an area without the mode network, a service interruption occurs. This situation is for real-time business such as language The voice call service has a great impact on the user and is inconvenient to use.

If the dual-mode dual standby terminal needs to be implemented in accordance with the method specified in 3GPP TS 23.009 to implement network switching between different modes, the terminal must require two RF modules of various modes. This in turn causes the manufacturing cost of the terminal to be too high. At the same time, there is no need to ensure that the terminal realizes that both numbers are in standby state under any circumstances. The most basic requirement is to ensure that the standby number does not abort during the business process. Summary of the invention

The technical problem to be solved by the present invention is to provide a method for switching between different modes of the network when the dual mode dual standby system is dual standby, so that the existing dual mode dual standby terminal only has two different modes of the RF module, and is guaranteed. The terminal does not have an abnormal interruption of the service during the running of the service.

In order to solve the above technical problem, the present invention provides a method for switching between different mode networks when dual mode standby terminals are dual standby, including the following steps:

(1) When the mode-network standby user needs to switch to the mode 2 network, the standby user in the terminal another mode network is activated;

(2) The terminal uses the communication module of mode 2 to perform the mode-to-mode two-mode network switching operation. When the network connection is successful in mode 2, the release mode is the connection of the current standby user in the mode-one network, and the mode is completed. The user switches to the mode 2 network.

The present invention is also based on the above network switching method, and provides a method for switching between dual mode standby dual standby services in different mode networks, including the following steps:

(1) When the terminal performs a certain service in mode 1, it receives a command for the network to switch between different modes of the network;

(2) judging whether the communication module of mode 2 is used by other network users in the terminal, if using, performing step (3), otherwise performing step (4);

(3) The terminal performs deactivation on the network of the user who is standby in mode 2, and releases the communication module in the mode;

(4) The terminal uses the communication module of mode 2, and performs the user-to-mode two network cut of mode one. In the operation of switching, after the network connection is successful in mode 2, the terminal releases the mode-network connection, and the standby mode of the completion mode switches to the mode 2 network standby operation, and the service in step (1) is continued.

Further, after the step (4) performs the service in the step (1), the terminal deactivates the standby of the service user in the mode 2 network.

Further, after deactivating the standby of the service user in the mode 2 network, the terminal re-executes network registration in different mode networks and enters the standby state according to the standby state before the network switching.

The communication module includes a radio frequency chip and a baseband chip.

The network is a time division synchronous code division multiple access TD-SCDMA mode network, or a CDMA code division multiple access mode network, or a wideband code division multiple access WCDMA mode network, or a global communication system GSM mode network.

The invention solves the problem that the dual-mode dual standby terminal cannot realize the network switching between different modes in the dual standby mode without adding a new radio frequency module and the baseband module, and ensures that the terminal does not have a service abnormality during the service progress. Interrupted.

BRIEF abstract

1 is a flow chart of Embodiment 1 of the present invention;

2 is a flow chart of Embodiment 2 of the present invention.

Preferred embodiment of the invention

The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

The technical solution of the present invention is mainly implemented based on the principle that a user can stand by in different access networks in a communication network, but is unique in the HLR (Home) register. Access to different networks is only different for VLR registration, and the wireless link is different, that is, one number can be camped on different access networks at different times. The technical solution of the present invention will be described in detail below with reference to Figs. 1 and 2 and corresponding specific embodiments.

Embodiment 1 As shown in FIG. 1, the embodiment includes the following steps:

Step 101: When the mode-network standby user needs to switch to the mode 2 network, deactivate the standby user in the other mode network of the terminal; and the method of deactivating the standby user in another mode may be performed according to the single mode single standby terminal The shutdown process is implemented;

Step 102: The terminal uses the communication module of the mode 2 to perform mode-to-mode mode 2 network switching operation. The network switching process may refer to the signaling process in 3GPP TS23.009 and the radio resource control process in TS25.331. Realize

Step 103: After the network connection succeeds in mode 2, the terminal releases the mode, the current standby user connects to the mode one network, and the user who completes the mode switches to the mode 2 network; if the terminal releases the network connection operation, refer to 3GPP TS23 The signaling flow in .009 and the radio resource control flow in TS 25.331 are implemented.

Embodiment 2

As shown in FIG. 2, this embodiment includes the following steps:

Step 201: The terminal moves to the edge of the network coverage of the mode in a certain service process in the mode 1, and receives a command for the network to switch between different modes of the network;

Step 202, it is determined whether the other mode, that is, the mode 2 communication module is used by other network users in the terminal, that is, whether the other user is in standby mode 2, if it has been used, step 203 is performed, otherwise step 204 is performed;

Step 203: The terminal performs a deactivation operation on the network of the user who is standby in mode 2, and releases the communication module in the mode; and the method of deactivating the standby user in the mode 2 may be implemented according to the shutdown process of the single mode single standby terminal;

Step 204: The terminal uses the communication module of mode 2 to perform mode-to-mode mode 2 network switching operation; the network switching process is implemented according to the signaling process in 3GPP TS23.009 and the radio resource control process in TS25.331;

Step 205: After the network connection succeeds in mode 2, the terminal releases the connection of the mode-network, and completes the mode-to-mode standby user-to-mode 2 network standby switching; the terminal releases the network connection operation, and the signaling process in 3GPP TS23.009 And the radio resource control process in TS25.331 Present

Step 206: The terminal continues to perform the service in step 201 in the mode 2 network by the user in the mode.

After the terminal completes the above services, the service user is deactivated in the new mode network. The terminal re-executes the network registration of different network users in different mode networks according to the standby state before the network switching and enters the standby state.

The following is an application example of this embodiment:

A TD/GSM (TD is TD-SCDMA, time division synchronous code division multiple access access barrel writing; GSM, global mobile communication system) dual-mode dual standby terminal resides in two network users, the number used is 139 ********, 159********; The previous network user is on standby in the GSM network, and the other user is on the TD-SCDMA network. At present, the user is using the number 159******** of the network user who is on standby in the TD-SCDMA network to conduct voice call service, and the user runs to the edge area covered by the TD-SCDMA network, and the network judges that different mode networks need to be performed. Switching, the TD-SCDMA network informs the TD-SCDMA baseband chip that the network switching and network switching information is required; the GSM communication module is notified to perform the current GSM standby network user 139******** deactivation. The network releases the GSM communication module; the terminal performs network switching: The GSM communication module performs network switching with the user information of the network user 159********. After the network switching operation in mode 2 is completed, the TD-SCDMA communication module releases the 159********* user's TD-SCDMA network network connection to complete the network switching. During the network handover process of the terminal, the network processing is performed according to the signaling procedure in 3GPP TS23.009, and the voice circuit connection is switched; when the network handover succeeds, the network user 159******** is new. The GSM network continues to proceed.

After the above voice call service is completed, the terminal deactivates the current GSM network. According to the original settings, perform 159 and 139 respectively in TD and GSM mode according to the network selection before switching, to achieve network re-standby. Industrial Applicability The present invention discloses a mode for switching between different mode networks when dual mode dual standby terminals are dual standby. The method is applicable to the dual-mode dual standby terminal in the wireless communication, especially in the case of dual standby, when the service under a certain mode network suddenly enters the area without the mode network, the network switching is performed in time to avoid the service The situation of the interruption. Since it is not necessary to increase the RF module, and it can ensure that the standby number does not abruptly interrupt during the business process, it has practical value.

Claims

Claim

1. A method for switching between different mode networks when dual mode dual standby terminals are dual standby, comprising the following steps:

(2) The terminal uses the communication module of mode 2 to perform mode-to-mode mode 2 network switching operation. When the network connection is successful in mode 2, the mode is released. The current standby user is connected to the mode-network, and the mode is completed. The user switches to the mode 2 network.

2. The method of claim 1 wherein

The communication module includes a radio frequency chip and a baseband chip.

3. The method of claim 1 wherein:

4. A method for switching between services in different modes when dual-mode dual standby terminals are dual standby: including the following steps:

(2) Determine whether the communication module of mode 2 is used by other network users in the terminal, and if so, perform step (3), otherwise perform step (4);

(4) The terminal uses the communication module of mode 2 to perform mode-to-mode mode 2 network switching operation. When the network connection is successful in mode 2, the terminal releases mode-network connection, and the standby mode of the completion mode switches to mode. Second, the network standby operation, continue to perform the business in step (1).

The method according to claim 4, wherein the step (4) is performed by the terminal After the service in step (1) is completed, the service user is deactivated in the mode 2 network.

The method according to claim 5, wherein after deactivating the standby of the service user in the mode 2 network, the terminal re-authenticates network users in different mode networks according to the standby state before the network switching. And enter the standby state.

7. The method of claim 4, wherein

The communication module includes a radio frequency chip and a baseband chip.

8. The method of claim 4, wherein