WO2012100566A1

WO2012100566A1 - Method, system and device for processing visual telephone service

Info

Publication number: WO2012100566A1
Application number: PCT/CN2011/081140
Authority: WO
Inventors: 高翔
Original assignee: 中兴通讯股份有限公司
Priority date: 2011-01-28
Filing date: 2011-10-21
Publication date: 2012-08-02
Also published as: CN102186218A

Abstract

The present invention relates to the technology in the communication field, and specifically to a method, a system and a device for processing a visual telephone service. The method comprises: updating a CS service into a TD-SCDMA network from a GSM network when a user terminal is processing a visual telephone service in the CS service. The use of the method, the system and the device for processing a visual telephone service provided by the embodiments of the present invention enables a network side to switch the visual telephone service to the TD-SCDMA network from the GSM network, and enables the visual telephone service to be transmitted in the TD-SCDMA network.

Description

Method, system and device for processing videophone service

The present invention relates to the field of communications technologies, and in particular, to a method, system and device for processing a videophone service. Background technique

With the advent of the third generation of mobile communication era, TD-SCDMA (Time Division Synchronized Code Division Multiple Access) users are growing year by year, while GSM (Global System for Mobile Communications, Global System for Mobile Communications) The user is saturated. With the further construction of the TD-SCDMA network, there is a problem that the current GSM network is saturated and the utilization of the TD-SCDMA network is insufficient. According to the authoritative organization, in the next five years, the accelerated growth of mobile broadband will lead to the explosive growth of PS (Packet Switched) services. Therefore, a way to make the PS service be carried out in the TD-SCDMA network as much as possible, so that the CS (Circuit Switch) service is carried out as much as possible in the GSM network, effectively utilizes the resources of the existing network.

However, the above-mentioned CS service and PS service offloading scheme have the following problems: The CS service must be bound to the GSM network, and the GSM network does not support the videophone service, so that the user terminal cannot use the videophone service, affecting the communication of information, and reducing The user experience. Summary of the invention

Embodiments of the present invention provide a method, system, and device for processing a videophone service, which can switch a videophone service from a GSM network to a TD-SCDMA network, so that the videophone service is transmitted in the TD-SCDMA network. Improve the user experience.

Embodiments of the present invention provide a method for processing a videophone service, and a circuit of a user terminal The switched CS service resides in the GSM network of the global mobile communication system, and the packet switched PS service of the user terminal resides in the time division-synchronous code division multiple access TD-SCDMA network, and the method includes:

When the user terminal processes the videophone service in the CS service, the CS service is updated from the GSM network to the TD-SCDMA network.

Correspondingly, an embodiment of the present invention provides an apparatus, where a circuit switched CS service resides in a global mobile communication system GSM network, and a packet switched PS service resides in a time division-synchronous code division multiple access TD-SCDMA network, including :

And an update module configured to update the CS service from the GSM network to the TD-SCDMA network when the video telephony service in the CS service is set.

Correspondingly, the embodiment of the present invention further provides a device for processing a videophone service, including: a location update module, configured to: after receiving a location area update request sent by a user terminal, perform circuit switched CS service of the user terminal Corresponding location area is updated by the location area of the GSM network of the Global System for Mobile Communications to the location area of the time division-synchronous code division multiple access access TD-SCDM A network;

A network transmission module, configured to transmit videophone services over a TD-SCDMA network.

Correspondingly, the embodiment of the present invention further provides a system for processing a videophone service, including: a terminal side and a network side;

The terminal side, when configured to process the videophone service in the circuit switched CS service, updates the CS service from the GSM network to the TD-SCDMA network;

The network side is configured to: after receiving the location area update request sent by the user terminal, update the location area corresponding to the CS service of the user terminal from the location area of the GSM network to the location area of the TD-SCDMA; The present invention provides a method, system and device for processing a videophone service. When a user terminal processes a videophone service in a CS service, the CS is used. Business is more GSM network New to the TD-SCDMA network. In the embodiment of the present invention, the location area corresponding to the CS service of the user terminal is updated from the location area of the GSM network to the location area of the TD-SCDMA network, so that the network side can switch the videophone service from the GSM network to the TD-SCDMA network. In turn, the videophone service is transmitted in the TD-SCDMA network to improve the user experience. DRAWINGS

1 is a schematic flowchart of a method for processing a videophone service according to an embodiment of the present invention; FIG. 2 is a schematic flowchart of a method for processing a videophone service when a user terminal initiates a videophone service as a calling terminal according to an embodiment of the present invention;

3 is a schematic flowchart of updating a location area according to an embodiment of the present invention;

4 is a schematic flow chart of a method for processing a videophone service when a user terminal receives a videophone service as a called terminal according to another embodiment of the present invention;

FIG. 5 is a schematic structural diagram of a device according to another embodiment of the present invention; FIG.

6 is a schematic structural diagram of a device according to another embodiment of the present invention;

FIG. 7 is a schematic diagram of a system for processing a videophone service according to another embodiment of the present invention. detailed description

The main implementation principles, the specific implementation manners, and the corresponding beneficial effects that can be achieved by the technical solutions of the embodiments of the present invention are described in detail below with reference to the accompanying drawings.

In order to solve the problem existing in the prior art, an embodiment of the present invention provides a method for processing a video telephony service, where a circuit switched CS service of a user terminal resides in a global mobile communication system GSM network, and a packet switched PS service resident of a user terminal The time-division-synchronous code division multiple access access to the TD-SCDMA network, as shown in Figure 1, includes the following steps:

Step 101: When the user terminal processes the videophone service in the CS service, the CS service is updated by the GSM network to the TD-SCDMA network.

Step 102: The network side transmits the videophone service in the TD-SCDMA network. Specifically, when the user terminal is powered on, the circuit switched CS service resides in the global mobile communication system GSM network, and the packet switched PS service resides in the time division-synchronous code division multiple access access TD-SCDMA network, however, GSM The network cannot support video telephony services in the CS service. For the technical problem, the embodiment of the present invention provides a method for processing a videophone service. When a user terminal processes a videophone service in a CS service, it detects a location area and a current camp of the currently resident TD-SCDMA network. Whether the location area of the GSM network is the same, if not the same, the CS service is updated from the GSM network to the TD-SCDMA network, and the location area update request is sent to the network side, then the network side corresponds to the location area of the CS service by the GSM network. The location area is updated to the location area of the TD-SCDMA network, and then the network side transmits the videophone service in the TD-SCDMA network; if the same, the user terminal updates the CS service from the GSM network to the TD-SCDMA network, the network side can The videophone service is transmitted in the TD-SCDMA network.

The user terminal processes the videophone service in the CS service, including but not limited to the following: the user terminal initiates the videophone service as the calling terminal, and the user terminal receives the videophone service as the called terminal.

Preferably, when the user terminal initiates the videophone service as the calling terminal, it can determine whether the current location exists before the location area of the currently camped TD-SCDMA network is the same as the location area of the currently camped GSM network. The ongoing CS service other than the videophone service, such as voice service; if present, the location area and current station of the currently resident TD-SCDMA network are detected after the CS service of the videophone service ends Whether the location area of the reserved GSM network is the same, to avoid the business error caused by multiple CS services simultaneously; if not, the location area of the currently camped TD-SCDMA network and the currently camped GSM network can be directly detected. The location area is the same.

Preferably, when the user terminal receives the videophone service as the called terminal, before detecting whether the location area of the currently camped TD-SCDMA network is the same as the location area of the currently camped GSM network, the following may also be performed as follows: Procedure: After the network side receives the call request from the calling terminal, Detecting whether the user terminal as the called terminal has the capability of processing the videophone service, and if it has the capability of processing the videophone service, sending a videophone service call request to the user terminal according to the location information or the routing information of the user terminal; After receiving the videophone service call request, the user terminal determines whether there is an ongoing CS service other than the videophone service; if yes, after detecting the CS service of the videophone service, detecting the currently camped Whether the location area of the TD-SCDMA network is the same as the location area of the currently camped GSM network; if not, it can directly detect whether the location area of the currently camped TD-SCDMA network and the location area of the currently camped GSM network are the same.

When the location area of the currently camped TD-SCDMA network is different from the location area of the currently camped GSM network, the user terminal needs to initiate a radio resource control RRC connection request to the network side in the TD-SCDMA network; after the RRC connection is established The user terminal sends a location area update request to the network side, and the location area corresponding to the CS service is updated from the location area of the GSM network to the location area of the TD-SCDMA network; the user terminal receives the location area update confirmation message returned by the network side. The radio resource control RRC connection is released, thereby completing the location area update process.

Then, the network side switches the videophone service from the GSM network to the TD-SCDMA network for transmission. At the end of the videophone service, the user terminal updates the CS service from the TD-SCDMA network to the GSM network.

Through the foregoing description, it can be seen that, by using the method for processing a videophone service provided by the embodiment of the present invention, the location area corresponding to the CS service of the user terminal is updated from the location area of the GSM network to the location area of the TD-SCDMA network, So that the network side switches the videophone service from the GSM network to the TD-SCDMA network, so that the videophone service is transmitted in the TD-SCDMA network.

The method for processing the videophone service provided by the embodiment of the present invention is described in detail below. As shown in FIG. 2, when the user terminal initiates the videophone service as the calling terminal, the following steps are performed. Step 201: The user terminal performs normal work after being powered on, the CS service resides in the GSM network, and the PS service resides in the TD-SCDMA network;

Step 202: The user terminal determines whether there is an ongoing CS service other than the videophone service; if yes, after the CS service except the videophone service ends, step 203 is performed; if not, the step is directly executed. 203;

Step 203: The user terminal detects whether the location area of the currently camped TD-SCDMA network is the same as the location area of the currently camped GSM network; if not, perform step 204; if the same, perform step 205;

Step 204: The user terminal updates the CS service from the GSM network to the TD-SCDMA network, and notifies the network side to update the location area corresponding to the CS service; that is, notifies the network side to locate the location area corresponding to the CS service by the location of the GSM network. The area is updated to the location area of the TD-SCDMA network;

Step 205: The network side transmits the videophone service in the TD-SCDMA network. Specifically, the user terminal initiates a videophone service request in the TD-SCDMA network to establish an RRC connection. Specifically, the user terminal initiates an RRC connection request in the TD-SCDMA network, and the RRC connection request is initiated by a videophone service. After receiving the connection request, the RNS (Radio Network Subsystem) returns an RRC connection setup message to the user terminal; after the user terminal sends an RRC connection setup complete message to the RNS, an RRC connection is established between the user terminal and the RNS. . The user terminal sends an initial service request to the CN (Core Network); after completing the authentication and encryption process, the user terminal sends a call setup request; after the TD-SCDMA network side allocates the communication channel, establishes a call connection with the called terminal. When the called terminal is in the ringing state, the TD-SCDMA network side sends a ringing message to the user terminal; when the called terminal answers, the TD-SCDMA network side sends a connection confirmation message to the user terminal.

The specific process of the above step 204 is as shown in FIG. 3, and includes the following steps:

Step 301: The user terminal sends an RRC connection request. Step 302: The RNS returns a connection establishment message to the user terminal.

Step 303: The user terminal sends a connection establishment complete message to the RNS. In step 301-303, an RRC connection is established between the user terminal and the RNS.

Step 304: The user terminal sends a location area update request to the RNS, requesting that the location area corresponding to the CS service is updated from the location area of the GSM network to the location area of the TD-SCDMA network;

Step 305: The RNS sends a location area update request to the CN, and carries the updated location area information.

Step 306: The RNS forwards the authentication request returned by the CN to the user terminal.

Step 307: The RNS forwards the authentication response returned by the user terminal to the CN.

Step 308: The RNS forwards the security mode control message sent by the CN to the user terminal. Step 309: The RNS forwards the security mode control completion message returned by the user terminal to the CN. Step 310: The RNS forwards the location area update confirmation message sent by the CN to the User terminal; Step 311: After receiving the connection release message sent by the CN, the RNS releases the RRC connection between the CN and the CN, and notifies the user terminal to release the RRC connection with the user terminal.

Through the above steps 301-311, the location area corresponding to the CS service of the user terminal is updated to

The location area of the TD-SCDMA network.

When the user terminal receives the videophone service as the called terminal, as shown in FIG. 4, the following steps can be performed:

Step 401: After receiving the videophone service call request to the user terminal, the MSC (Mobile Switching Center) sends an authentication message to the HLR (Home Location Register) of the user terminal.

Step 402: After receiving the authentication message, the HLR detects whether the user terminal has the capability of processing the videophone service.

Step 403: When the user terminal has the capability of processing the videophone service, the MSC queries the SGSN (Serving GPRS Support Node) to check whether the user has the user. Location information or routing information of the terminal; if yes, step 404 is performed; otherwise, the call request is not sent;

Step 404: The MSC sends a call request to the user terminal by using the SGSN, where the reason for the call request is a videophone service;

Step 405: The user terminal detects whether there is an ongoing CS service other than the videophone service; if yes, after the CS service except the videophone service ends, step 406 is performed; if not, the step is directly executed. 406;

Step 406: The user terminal detects whether the location area of the currently camped TD-SCDMA network is the same as the location area of the currently camped GSM network; if not, perform step 407; if the same, perform step 408;

Step 407: The user terminal updates the CS service from the GSM network to the TD-SCDMA network, and notifies the network side to update the location area corresponding to the CS service; that is, notifies the network side to locate the location area corresponding to the CS service by the location of the GSM network. The area is updated to the location area of the TD-SCDMA network;

Step 408: The network side transmits the videophone service in the TD-SCDMA network. Specifically, the core network sends a setup message to the RNS, where the setup message includes the bearer capability of the call. After receiving the setup message, the user terminal returns a call confirmation message to the RNS; then, the RNS sends the call confirmation message to the CN; after receiving the call confirmation message, the CN sends a radio channel configuration message to the RNS; the RNS receives the message. And sending a configuration message to the user terminal; after completing the configuration, the user terminal sends a configuration completion message to the RNS; the RNS forwards the configuration completion message to the CN. In this way, a call path is established between the calling terminal and the user terminal, and then the user terminal sends a ringing message to the network side as the called terminal, and sends a connection message to the network side when the response is answered, and the connection message is sent by the RNS. Go to the core network. The core network returns a call confirmation message to the user terminal, and the call setup process ends, and a normal video call is started.

When the above videophone service ends, the CS service is updated from TD-SCDMA network to GSM. The internet.

Correspondingly, the embodiment of the present invention further provides an apparatus, where the circuit switched CS service resides in a global mobile communication system GSM network, and the packet switched PS service resides in a time division-synchronous code division multiple access TD-SCDMA network. As shown in Figure 5, it includes:

The updating module 501 is configured to update the CS service from the GSM network to the TD-SCDMA network when the video telephony service in the CS service is set.

Preferably, the device further includes: a detecting module 502, configured to detect whether the location area of the currently camped TD-SCDMA network is the same as the location area of the currently camped GSM network when the videophone service in the CS service is processed. ;

The processing module 503 is configured to: when the detection result is different, the location area update request sent to the network side, and the network side updates the location area corresponding to the CS service from the location area of the GSM network to the TD-SCDMA network. a location area, the videophone service is transmitted in a TD-SCDMA network.

Preferably, the device further includes: a determining module 504, configured to determine whether there is currently an ongoing CS service other than the videophone service; if yes, after the CS service except the videophone service ends, The detecting module 502 is triggered; if not, the detecting module 502 is directly triggered.

Preferably, the update module 501 is specifically configured to: initiate a radio resource control RRC connection request to the network side in the TD-SCDMA network; after the RRC connection is established, send a location area update request to the network side, where the CS service corresponds to the location The area is updated by the location area of the GSM network to a location area of the TD-SCDMA network; after receiving the location area update acknowledgement message returned by the network side, releasing the radio resource control RRC connection. Preferably, the updating module 501 is further configured to update the CS service from the TD-SCDMA network to the GSM network when the videophone service ends.

The above devices include, but are not limited to, devices such as user terminals such as mobile phones.

Correspondingly, the embodiment of the present invention further provides a device, as shown in FIG. 6, including: a location update module 601, configured to: after receiving a location area update request sent by a user terminal, circuit-switch CS of the user terminal The location area corresponding to the service is updated by the location area of the GSM network of the Global System for Mobile Communications to the location area of the time division-synchronous code division multiple access access TD-SCDM A network;

The network transmission module 602 is configured to transmit the videophone service in the TD-SCDMA network.

Preferably, the device further comprises:

The service detecting module 603 is configured to detect whether the user terminal has the capability of processing the videophone service;

The calling module 604 is configured to, after the service detecting module 603 detects that the user terminal has the capability of processing the videophone service, send a videophone service call request to the user terminal according to the location information or the routing information of the user terminal.

Through the foregoing description, it can be seen that, by using the device provided by the embodiment of the present invention, the location area corresponding to the CS service of the user terminal is updated from the location area of the GSM network to the location area of the TD-SCDMA network, so that the network side will be visible. The telephone service is switched from the GSM network to the TD-SCDMA network, so that the videophone service is transmitted in the TD-SCDMA network.

Correspondingly, the embodiment of the present invention further provides a system for processing a videophone service, as shown in FIG. 7, comprising: a terminal side 701 and a network side 702;

The terminal side 701 is configured to process a videophone service in a circuit switched CS service, Updating the CS service from the GSM network to the TD-SCDMA network;

The network side 702 is configured to: after receiving the location area update request sent by the user terminal, update the location area corresponding to the CS service of the user terminal from the location area of the GSM network to the location area of the TD-SCDMA The videophone service is transmitted in the TD-SCDMA network.

Preferably, the network side 702 is further configured to: when the terminal side 701 receives the videophone service as the called terminal, detecting that the terminal side 701 has the capability of processing the videophone service, according to the terminal side 701. The location information or the routing information sends a videophone service call request to the terminal side 701.

Through the above description, it can be seen that the method, system and device for processing video telephony services provided by the embodiments of the present invention update the location area corresponding to the CS service of the user terminal from the location area of the GSM network to the The location area of TD-SCDMA, so that the network side switches the videophone service from the GSM network to the TD-SCDMA network, so that the videophone service is transmitted in the TD-SCDMA network.

It is apparent that those skilled in the art can make various modifications and variations to the invention without departing from the spirit and scope of the invention. Thus, it is intended that the present invention cover the modifications and modifications of the invention

Claims

Claim

A method for processing a video telephony service, the circuit switched CS service of the user terminal resides in a global mobile communication system GSM network, and the packet switched PS service of the user terminal resides in a time division-synchronous code division multiple access TD- An SCDMA network, wherein the method comprises:

When the user terminal processes the videophone service in the CS service, the CS service is updated by the GSM network to the TD-SCDMA network;

The network side transmits the videophone service in a TD-SCDMA network.

2. The method of claim 1, wherein the method further comprises:

Detecting whether the location area of the currently camped TD-SCDMA network is the same as the location area of the currently camped GSM network;

When the detection result is not the same, the location area update request sent to the network side, the network side updates the location area corresponding to the CS service from the location area of the GSM network to the location area of the TD-SCDMA network, and the The videophone service is transmitted in the TD-SCDMA network;

When the detection result is the same, the CS service is updated by the GSM network to the TD-SCDMA network, and the network side transmits the videophone service in the TD-SCDMA network.

The method according to claim 1 or 2, wherein the user terminal processes the videophone service in the CS service, including:

The user terminal initiates the videophone service as a calling terminal, and the user terminal receives the videophone service as a called terminal.

4. The method according to claim 3, wherein when the user terminal initiates the videophone service as the calling terminal, the detecting the location area of the currently camped TD-SCDMA network and the currently camped GSM network Before the location area is the same, it also includes:

The user terminal determines whether there is currently an ongoing CS service other than the videophone service; if yes, after detecting the CS service except the videophone service, detecting the location area of the currently camped TD-SCDMA network Whether the location area of the currently camped GSM network is the same; If it does not exist, it directly detects whether the location area of the currently camped TD-SCDMA network is the same as the location area of the currently camped GSM network.

5. The method according to claim 3, wherein when the user terminal receives the videophone service as the called terminal, the detecting the location area of the currently camped TD-SCDMA network and the currently camped GSM network Before the location area is the same, it also includes:

The network side detects that the user terminal has the capability of processing the videophone service, and sends a videophone service call request to the user terminal according to the location information or routing information of the user terminal;

After receiving the videophone service call request, the user terminal determines whether there is currently an ongoing CS service other than the videophone service;

If yes, after detecting the CS service other than the videophone service, detecting whether the location area of the currently camped TD-SCDMA network is the same as the location area of the currently camped GSM network; if not, directly It is detected whether the location area of the currently camped TD-SCDMA network is the same as the location area of the currently camped GSM network.

6. The method according to claim 1, wherein the updating the location area corresponding to the CS service from the location area of the GSM network to the location area of the TD-SCDMA network comprises: the user terminal is in TD-SCDMA Sending a radio resource control RRC connection request to the network side in the network;

After the RRC connection is established, the user terminal sends a location area update request to the network side, and the location area corresponding to the CS service is updated from the location area of the GSM network to the location area of the TD-SCDMA network;

After receiving the location area update acknowledgement message returned by the network side, the user terminal releases the radio resource control RRC connection.

7. The method according to claim 1, wherein, when the videophone service ends, the CS service is updated by the TD-SCDMA network to the GSM network.

8. A device for processing video telephony services, wherein the circuit switched CS service resides in a global mobile communication system GSM network, and the packet switched PS service resides in a time division-synchronous code division multiple access TD-SCDMA network, wherein Includes:

9. The device of claim 8, further comprising:

The detecting module is configured to detect whether the location area of the currently resident TD-SCDMA network is the same as the location area of the currently camped GSM network when the videophone service in the CS service is processed; the processing module is set to be when the detection result is If not the same, the location area update request sent to the network side, the network side updates the location area corresponding to the CS service from the location area of the GSM network to the location area of the TD-SCDMA network, and the videophone service is Transmission in a TD-SCDMA network.

10. The device of claim 8, further comprising:

The determining module is configured to determine whether there is currently an ongoing CS service other than the videophone service; if yes, triggering the detecting module after the CS service except the videophone service ends; if not , the detection module is directly triggered.

The device according to claim 8, wherein the update module is specifically configured to: initiate a radio resource control RRC connection request to the network side in the TD-SCDMA network; and send the location to the network side after the RRC connection is established. a region update request, the location area corresponding to the CS service is updated from the location area of the GSM network to the location area of the TD-SCDMA network; after receiving the location area update confirmation message returned by the network side, releasing the The radio resource controls the RRC connection.

The device according to claim 8, wherein the updating module is further configured to update the CS service from the TD-SCDMA network to the GSM network when the videophone service ends.

13. A device for processing a videophone service, wherein: a location update module, configured to: after receiving the location area update request sent by the user terminal, update a location area corresponding to the circuit switched CS service of the user terminal by the location area of the global mobile communication system GSM network to the time division - Synchronous code division multiple access access to the location area of the TD-SCDM A network;

14. The device according to claim 13, further comprising:

a service detecting module, configured to detect whether the user terminal has the capability of processing videophone services;

The calling module is configured to send a videophone service call request to the user terminal according to the location information or the routing information of the user terminal after the service detecting module detects that the user terminal has the capability of processing the videophone service.

A system for processing a videophone service, comprising: a terminal side and a network side; wherein the terminal side is configured to process the CS service from the GSM network when processing the videophone service in the circuit switched CS service Updating to the TD-SCDMA network;

The network side is configured to: after receiving the location area update request sent by the user terminal, update the location area corresponding to the CS service of the user terminal from the location area of the GSM network to the location area of the TD-SCDMA; The videophone service is transmitted in a TD-SCDMA network.

The system according to claim 15, wherein the network side is further configured to: when the terminal side receives the videophone service as the called terminal, detecting that the terminal side has the capability of processing the videophone service And sending a videophone service call request to the terminal side according to the location information or the routing information of the terminal side.