CN102137492B - Method and device for video processing telephone service in single-card double standby system - Google Patents

Abstract

The invention provides a method and equipment for processing video phone services in a single-card dual-standby system. The method includes that the second network control node receives the paging message sent by the CS domain core network for paging the single-card dual-standby terminal; when the second network control node judges that the service is a VP service, Paging the single-card dual-standby terminal in the network system. The embodiment of the present invention can realize the VP service when the single card is dual standby.

Description

Method and device for processing video phone service in single-card dual-standby system

technical field

The invention relates to mobile communication technology, in particular to a method and equipment for processing video phone (Video Phone, VP) services in a single-card dual-standby system.

Background technique

With the development of mobile communications, mobile networks of various standards coexist. In order to obtain service experience on networks of different standards, users can use dual-card dual-standby terminals or single-card dual-mode single-standby terminals. The dual-card dual-standby terminal has two systems and is attached to two networks at the same time. It can realize the simultaneous standby of the two networks, similar to having two mobile phones at the same time. The single-card dual-mode single-standby terminal has two systems and can only reside on one network at a time.

The multi-mode terminal of the traditional single-standby system can only be attached to one network at a time point, such as Global System for Mobile communications (Global System for Mobile communications, GSM)/Time Division Synchronous Code Division Multiple Access (Time Division Synchronous Code Division Multiple Access, TD -SCDMA) dual-mode terminal can only be attached to the GSM network or TD-SCDMA network at a time. The above-mentioned single-card dual-mode single-standby system can only reside on one network at a time, and cannot reside on two networks at the same time. Although the dual-card dual-standby system can reside on two networks at the same time, it needs two sets of radio frequency (RF), two sets of baseband (BaseBand), two sets of protocol stacks and other resources.

The prior art lacks a single-card dual-standby system, and even more lacks a solution for processing VP services in the single-card dual-standby system.

Contents of the invention

Embodiments of the present invention provide a method and device for processing video phone services in a single-card dual-standby system, so as to realize processing of VP services in a single-card dual-standby system.

An embodiment of the present invention provides a method for processing VP services in a single-card dual-standby system, including:

The second network control node receives the paging message for paging the single-card dual-standby terminal sent by the circuit-switched CS domain core network;

After the second network control node determines that the current service is a VP service, it pages the single-card dual-standby terminal in the second network system corresponding to the second network control node.

An embodiment of the present invention provides a network control device, including:

The receiving module is configured to receive a paging message sent by a circuit-switched CS domain core network for paging a single-card dual-standby terminal;

The second paging module is configured to page the single-card dual-standby terminal in the second network system corresponding to the second network control node after judging that the current service is a video phone VP service.

An embodiment of the present invention provides a single-card dual-standby terminal, the single-card dual-standby terminal resides in the first network system and the second network system at the same time, including:

A judging module, configured to judge whether the single-card dual-standby terminal resides in the second network system;

The sending module is configured to send the signaling related to the calling of the video call service to the second control node in the second network system when the judging module judges yes.

It can be seen from the above technical solutions that, in the embodiment of the present invention, by paging the single-card dual-standby terminal in the second network system, since the single-card dual-standby terminal resides in the second network system, it can ensure that the single-card dual-standby terminal is paged. , and then realize the VP service.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the drawings that need to be used in the description of the embodiments. Obviously, the drawings in the following description are some embodiments of the present invention. For those skilled in the art, other drawings can also be obtained based on these drawings without any creative effort.

FIG. 1 is a schematic structural diagram of a communication system based on an embodiment of the present invention;

Fig. 2 is a schematic flow chart of the method of the first embodiment of the present invention;

3 is a schematic flow diagram of a method according to a second embodiment of the present invention;

4 is a schematic flow chart of a method according to a third embodiment of the present invention;

5 is a schematic flow diagram of a method according to a fourth embodiment of the present invention;

6 is a schematic flow diagram of a method according to a fifth embodiment of the present invention;

7 is a schematic flow diagram of a method according to a sixth embodiment of the present invention;

Fig. 8 is a schematic diagram of the equipment structure of the seventh embodiment of the present invention;

FIG. 9 is a schematic structural diagram of a single-card dual-standby terminal according to an eighth embodiment of the present invention.

Detailed ways

In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

Fig. 1 is the communication system structure diagram based on the embodiment of the present invention, take GSM and TD-SCDMA network as example, certainly, also can be GSM network and other Universal Mobile Telecommunications System (Universal Mobile Telecommunications System, UMTS), for example, broadband A Code Division Multiple Access (WCDMA) network may also be a GSM network and a Long Term Evolution (LTE) network. Among them, for the GSM network, the corresponding network control node is the base station controller (Base Station Controller, BSC); for the UMTS network, the corresponding network control node is the radio network controller (Radio Network Controller, RNC), and the corresponding CS domain core The node of the network is a mobile switching center (Mobile Switch Center, MSC); for the LTE network, the corresponding network control node is an evolved base station (eNB), and the corresponding node of the CS domain core network is a mobile management entity (Mobile Management Entity, MME). Include single-card dual-standby terminal 11, base station (NodeB) 12, base transceiver station (Base Transceiver Station, BTS) 13, radio network controller (Radio Network Controller, RNC) 14, BSC 15, service general packet radio in the present embodiment A service system (General Packet Radio Service, GPRS) support node (Serving GPRS Support Node, SGSN) 16, and a mobile switching center (Mobile Switch Center, MSC) 17. The RNC 14 and the BSC 15 communicate through a newly added interface (such as the interface Iur-g between controllers), and the RNC and the BSC implement the adaptation function of the A interface and the Iu-cs on the Iur-g interface. In this embodiment, RNC and BSC are independently set as an example. It can be understood that a dual-mode controller can be used instead of RNC and BSC. The dual-mode controller has the functions of RNC and BSC, and the interface between the controllers serves as a Controller internal interface.

Under this system architecture, single-card dual-standby terminals can attach to GSM and TD-SCDMA at the same time, reside in GSM and TD-SCDMA cells at the same time, and monitor the common channels (including paging channels, etc.) of GSM and TD-SCDMA cells at the same time , realize the dual-mode dual-standby mechanism; single-card dual-standby terminals can use the air interface channel resources allocated by their respective system networks in the GSM and TD-SCDMA cells at the same time, and the dual-protocol stack of the terminal shares different tasks and performs the same or different services For example, as shown in Link 1, the data service is carried in the TD-SCDMA system, and as shown in Link 2, the voice service is carried in the GSM system; the MSC and the BSC communicate through the RNC to realize the unification of the CS domain relative to the core network It is the Iu-cs interface; the processing of the control plane and the user plane is performed on the Iur-g interface or the internal interface of the dual-mode controller.

Based on the above system architecture, VP services can be implemented, including VP calling services and VP called services.

FIG. 2 is a schematic flow diagram of the method in the first embodiment of the present invention. In this embodiment, the VP calling service is taken as an example. Referring to Fig. 2, the present embodiment includes:

Step 21: The single-card dual-standby terminal initiates the VP calling service, and judges whether it resides in the cell of the TD-SCDMA system. If so, the terminal uses the TD-SCDMA protocol stack and the radio frequency part to perform VP calling in the TD-SCDMA cell. Call.

Step 22: The single-card dual-standby terminal and the TD-SCDMA core network establish a VP connection through the RNC to implement the VP service.

In this embodiment, the VP calling service can be realized by initiating the VP service in the TD-SCDMA through the single-card dual-standby terminal.

For the VP called service, proceed as follows:

Fig. 3 is the schematic flow diagram of the method of the second embodiment of the present invention, and this embodiment takes the VP called service as an example, and this embodiment includes:

Step 31: The second network control node receives the paging message sent by the CS domain core network for paging the single-card dual-standby terminal;

Wherein, the second network control node may be an RNC, and the corresponding CS domain core network is an MSC; the second network control node may also be an eNB, and the corresponding CS domain core network is an MME.

Step 32: After the second network control node determines that the service is a VP service, it pages the single-card dual-standby terminal in the second network system corresponding to the second network control node.

For example, the paging message carries VP service indication information, and the second network control node judges that this service is a VP service according to the VP service indication information.

For another example, the single-card dual-standby terminal resides in the second network system corresponding to the second network control node and the first network system corresponding to the first network control node at the same time; Before the node determines that this service is a VP service, the second network control node further includes: after the second network control node determines that the single-card dual-standby terminal is paged in the first network system, through the first network control node and the second network The interface between the control nodes pages the single-card dual-standby terminal in the first network system.

The method may further include: the second network control node judging whether to page the single-card dual-standby terminal in the first network system according to the location information carried in the paging message.

It may also include: the second network control node receives the establishment message sent by the core network, and judges whether to perform the VP service by analyzing the establishment message. It is sent after the paging response message sent by the first network control node and the second network control node.

The paging the single-card dual-standby terminal in the second network system may include: the second network control node performs paging under the second network control node; or, the second network control node performs paging according to the paging The paging area information carried in the message is paging under the network control node included in the paging area, and the network control nodes included in the paging area include the second network control node and other network control nodes under the second network system Network control node.

In this embodiment, by paging the single-card dual-standby terminal in the second network system, the single-card dual-standby terminal can be paged to realize the VP service.

Two paging and one paging completion VP called services are described below respectively.

Fig. 4 is a schematic flow chart of the method in the third embodiment of the present invention. In this embodiment, the VP called service completed by two paging is taken as an example. Referring to Figure 4, this embodiment includes:

Step 41: The second network control node receives the paging message sent by the CS domain core network for paging the single-card dual-standby terminal, and the single-card dual-standby terminal simultaneously resides in the network corresponding to the second network control node. The second network system and the first network system corresponding to the first network control node.

Based on the system shown in Figure 1, the first network control node is BSC, and the first network system is GSM. The second network control node is RNC, and the second network system is TD-SCDMA. Of course, other systems can be implemented as a reference.

Step 42: After the second network control node determines that the single-card dual-standby terminal is paged in the first network system, the first network control node communicates with the first network control node through the interface between the first network control node and the second network control node. Paging the single-card dual-standby terminal in the system.

The second network control node may determine whether to page the terminal in the first network system according to the location information of the called terminal carried in the paging message and/or the identification information of the terminal, wherein the identification information of the terminal may be International Mobile Subscriber Identity (IMSI), or Temporary Mobile Subscriber Identity (TMSI), or International Mobile Equipment Identity (IMEI).

Step 43: When the second network control node determines that the current service is a VP service, page the single-card dual-standby terminal again in the second network system, so that the single-card dual-standby terminal can communicate with the core network. VP business.

The second network control node can judge whether it is a VP service by analyzing the Setup message from the core network. For details, see the following examples.

In this embodiment, by paging the single-card dual-standby terminal in the second network system, the single-card dual-standby terminal can be paged to realize the VP service.

FIG. 5 is a schematic flowchart of a method according to a fourth embodiment of the present invention. In this embodiment, the VP called service is completed by two paging operations as an example. Referring to Figure 5, this embodiment includes:

Step 501: The RNC receives a paging message (Paging) sent by the MSC, and when the paging message is used for paging a single-card dual-standby terminal in GSM, the RNC forwards the paging message to the BSC.

Specifically, the MSC pages the single-card dual-standby terminal residing in GSM, and the RNC routes the paging message to the BSC according to the location information in the paging message, such as the Location Area Identifier (LAI); The paging message can be routed to the BSC according to the terminal identifier (such as IMSI/TMSI/IMEI) in the paging message;

Wherein, the paging message will carry the location information of the called terminal. Assume that a location area identifier configured in the TD-SCDMA system is LAI-1, and a location area identifier configured in the GSM system is LAI-2. The single-card dual-standby terminal is attached to the GSM LAI-2, and executes the location area update (LAU) process on the LAI-2. The single-card dual-standby terminal sends a LAU request during the Location Area Update (LAU) process. The (LAU Request) message carries LAI-2, and the BSC intercepts the message and judges whether it is a single-card dual-standby terminal. If so, it will register with the core network through the RNC. The RNC can use the method of virtual mapping to map the LAI-2 belonging to the GSM system to a virtual LAI-3, modify the location information in the LAU Request message to LAI-3 and send it to the MSC through the Iu interface, then the core network considers the terminal Registered on LAI-3, the LAI-3 is not configured for use in any GSM or TD-SCDMA network location area; or the RNC can use a fixed routing method to identify LAI-2 as the Iur-g attribute without modifying the LAU The location information in the Request message is sent to the MSC through the Iu interface, then the core network considers that the terminal is registered on the LAI-2, and the subsequent signaling process needs to be routed to Iur-g. The corresponding configuration of LAI-2 or LAI-3 is required on the MSC, so that normal calling and calling processes can be performed. Afterwards, when the called terminal is paged, the RNC can judge whether the called terminal resides in the GSM system according to the location information carried in the called page according to the virtual mapping method or the fixed routing method, for example, the virtual mapping method , when the carried location information is LAI-3, it is judged to reside in the GSM system; in the method of fixed routing, if it is LAI-2, it is judged to reside in the GSM system.

For the method of fixed routing, the mapping relationship between LAI-2 and LAI-3 needs to be configured on the RNC; for the method of fixed routing, the first network control node to which LAI-2 belongs needs to be configured on the RNC.

Step 502: BSC sends a paging request (Paging Request) message on the air interface;

Wherein, the BSC can record the IMSI/TMSI/IMEI of the paging message from the Iur-g port, and identify it as a single-card dual-standby terminal, so that the response message sent by the single-card dual-standby terminal will be sent to the RNC subsequently;

Step 503: the terminal replies with a paging response (Paging Response) message;

The terminal can also carry the single-card dual-standby terminal identifier in the paging response, which is identified as a single-card dual-standby terminal;

Step 504: The BSC forwards the paging response message to the RNC through the Iur-g interface, and the RNC sends it to the MSC;

The BSC can compare the IMSI/TMSI/IMEI of the previously recorded single-card dual-standby terminal with the IMSI/TMSI/IMEI of the current paging response terminal, or identify the carried single-card dual-standby terminal identity, and determine whether the paging response terminal It is a single card dual standby terminal. When it is judged as a single-card dual-standby terminal, the BSC applies for a control plane link of the Iur-g interface for the terminal, such as a Signaling Connection Control Part (SCCP) link, and sends a paging response of the terminal to the RNC ; RNC applies for the control plane link (such as the SCCP link) of the Iu interface for the terminal, and forwards the paging response of the terminal to the MSC;

Step 505: MSC returns connection confirmation (Connect Confirm, CC) message to RNC, similarly, RNC forwards CC (Connect Confirm) message to BSC;

Step 506: The MSC sends a service acceptance (CM Service Accepted) message to the terminal, and the message is sent to the BSC through the Iu port and the Iur-g port, and the BSC forwards the message to the terminal on the air interface;

Step 507: The MSC sends a setup (Setup) message, which contains all the information required by the network side to process this call, including the calling number. Similarly, the message is sent to MSC through Iur-g port and Iu port;

Step 508: RNC parses the Setup message to determine whether this call is a multimedia voice service;

RNC can judge whether it is a multimedia voice service according to the call type requested in the Setup message, such as judging according to the bearer capability IE (bearer capability IE) in the Setup message, if other rate adaptation (Other Rate Adaptation) parameters of the IE are set The value is "'H.223and H.245'", and the value of the Information transfercapability parameter is "3.1kHz audio, exPLMN", then the call is a multimedia voice service, that is, it is identified as a VP service.

Step 509: if it is a multimedia voice service, the RNC sends a paging message under the RNC to perform a second paging;

The RNC simulates the core network to perform a second paging on the terminal, allowing the terminal to access the TD-SCDMA network and perform multimedia voice services;

Step 510: If the terminal is paged in the TD-SCDMA cell of the RNC, the terminal replies with a paging response message;

The terminal needs to be able to receive paging and respond to paging on different networks at the same time.

Step 511: the RNC sends the Setup message to the terminal;

The terminal needs to be able to process the Setup message sent from the second network when the first network is still in the call process. The first and second networks need to ensure that only one Setup message is delivered or only different instances of the same Setup message are delivered (such as retransmission).

Step 512: After receiving the Setup message, the terminal checks the corresponding call-related parameters. When the terminal can support multimedia voice services and the parameters in the Setup message are correct, it accepts the called call and returns a Call Confirmed message to the core network. This message is sent through the TD-SCDMA air interface, and sent by the RNC to the MSC without passing through the Iur-g interface.

Step 513: After the second paging is successful, the RNC receives the paging response from the terminal, and can initiate the release of channel resources allocated by the GSM side for this call. For example, send a clear command (Clear Command) message through the Iur-g interface to release Iur-g interface resources and air interface resources, and carry an appropriate cause value, such as "O and M intervention" or "Second paging", to avoid dialogue statistics cause adverse effects;

Because in step 512, when the terminal judges that it cannot accept the multimedia voice service, it may reply with a rejection message, such as sending RELEASE COMPLETE. Therefore, in order to ensure the reliability of the call, the RNC needs to confirm that the terminal can continue the call in TD-SCDMA before initiating the release. Channel resources allocated by the GSM side for this call.

Step 514: After the BSC completes the resource release, it responds with a Clear Complete message;

Step 515: The MSC sends a bearer assignment request (RAB ASSIGNMENTREQUEST) message to the RNC.

Step 516: The RNC allocates an air interface radio bearer channel to the terminal.

Step 517: RNC sends a bearer assignment response (RAB ASSIGNMENTRESPONSE) message to MSC.

Among them, steps 515-517 are used to establish the user plane bearer link required for the call, including establishing the Iu-cs interface user plane bearer (such as ATM or IP user plane link) and the air interface 64kbps bearer channel.

Step 518: the terminal sends a ringing message (Alerting) to the MSC through the RNC.

Step 519: the terminal sends a connect (Connect) message to the MSC through the RNC.

Step 520: the MSC returns a connection confirmation (Connect Acknowledge) message to the terminal through the RNC.

Wherein, in steps 518-520, the signaling flow between the terminal and the MSC is the same as the normal call flow, and the relevant signaling directly passes through the RNC without going through the Iur-g interface.

Step 521: When both parties in the call accept the call, the called terminal and the calling party enter into a multimedia voice service conversation process.

In this embodiment, when the VP service is analyzed, the RNC can page the terminal in TD-SCDMA, and can page the single-card dual-standby terminal to realize the VP service.

In the fourth embodiment, the VP service is determined by parsing the Setup message, or the MSC may directly carry the VP service indication in the paging message.

Fig. 6 is a schematic flow diagram of the method of the fifth embodiment of the present invention. In this embodiment, the VP called service is completed with one paging as an example. Referring to Fig. 6, this embodiment includes:

Step 601: The MSC sends a paging message for paging a single-card dual-standby terminal to the RNC, which carries VP service indication information.

Step 602: The RNC determines that the VP service is a VP service according to the VP service indication information, and then pages the single-card dual-standby terminal in TD-SCDMA.

Wherein, the single-card dual-standby terminal may be paged under the RNC, or paging may be performed under other associated RNCs. For the scenario of paging a single-card dual-standby terminal under the RNC, refer to steps 409-421.

It does not matter whether it is the double paging method of the fourth embodiment or the direct paging method of the fifth embodiment. There may be a situation that the single-card dual-standby terminal is not covered by the current RNC. At this time, paging can be performed under other RNCs.

In this embodiment, when the VP service is determined through the VP service indication information, the RNC can page the terminal in TD-SCDMA, and can page to the single-card dual-standby terminal to realize the VP service.

Fig. 7 is a schematic flow diagram of the method of the sixth embodiment of the present invention. In this embodiment, paging needs to be performed under other RNCs as an example. Referring to Fig. 7, this embodiment includes:

Step 701: RNC-1 sends a paging message (Paging) under the RNC-1 and to other RNCs (such as RNC-2) when determining that the paged single-card dual-standby terminal is performing VP services.

Wherein, the RNC-1 may determine to perform the VP service by analyzing the Setup message as in the third embodiment, or determine to perform the VP service through the VP service indication information as in the fourth embodiment. For details, refer to the foregoing embodiments.

A list of other RNCs (such as RNC-2) associated with the paging area needs to be configured on RNC-1, such as a list of associated RNCs corresponding to an LAI. When RNC-1 needs to perform paging, it queries the LAI corresponding to the paging area of the paging message, so as to obtain its associated RNC list. If RNC-2 is in the RNC list, and there is an interface (such as an Iur interface) between RNC-1 and RNC-2, then the paging message is forwarded to RNC-2, and paging is performed on RNC-2. RNC-1 may need to change the paging area of the paging message to paging all RNCs.

Step 702: If the terminal is paged in the TD-SCDMA cell of RNC-2, the terminal replies with a paging response. After receiving the paging response (Paging Response), RNC-2 needs to forward the paging response to RNC-1.

The terminal needs to be able to receive paging and respond to paging on different networks at the same time.

RNC-2 needs to record that the paging message is received from RNC-1 or the Iur interface, and the subsequent corresponding paging response needs to be forwarded to RNC-1 through the Iur interface. Use the IMSI/TMSI carried in the paging message for identification. When RNC-2 receives a paging response, it judges whether its corresponding paging message is received from RNC-1 or Iur according to the terminal identifier IMSI/TMSI it carries, and if so, forwards the paging response to RNC -1.

Step 703: RNC-1 forwards the setup (Setup) message sent by MSC to RNC-2, and sends it to the terminal by RNC-2;

The terminal needs to be able to process the Setup message sent from the second network when the first network is still in the call process. The first and second networks need to ensure that only one Setup message is delivered or only different instances of the same Setup message are delivered (such as retransmission).

Step 704: After receiving the Setup message, the terminal checks the corresponding call-related parameters. When the terminal can support multimedia voice services and the parameters in the Setup message are correct, it accepts the called call and returns a Call Confirmed message to the core network. The message is sent through the TD-SCDMA air interface, and is forwarded by RNC-2 to RNC-1, and then sent to MSC by RNC-1.

Step 705: After the paging is successful, the RNC-1 receives the paging response from the terminal, and can initiate the release of channel resources allocated by the GSM side for this call. For example, send a clear command (ClearCommand) message through the Iur-g interface to release Iur-g interface resources and air interface resources, and carry appropriate cause values, such as "Oand M intervention" or "Second Paging", to avoid disadvantages caused by the dialogue system Influence;

Because in step 704, when the terminal judges that it cannot accept the multimedia voice service, it may reply with a rejection message, such as sending RELEASE COMPLETE. Therefore, in order to ensure the reliability of the call, the RNC needs to confirm that the terminal can continue the call in TD-SCDMA before initiating the release. Channel resources allocated by the GSM side for this call.

Step 706: After the BSC completes the resource release, it responds with a Clear Complete message.

Step 707: MSC sends a bearer assignment request (RAB ASSIGNMENTREQUEST) message to RNC-1.

Step 708: RNC-1 allocates an air interface radio bearer channel for the terminal.

Step 709: RNC-1 sends a bearer assignment response (RAB ASSIGNMENTRESPONSE) message to the MSC.

Among them, steps 707-709 are used to establish the user plane bearer link required for the call, including establishing the Iu-cs interface user plane bearer (such as ATM or IP user plane link) and the air interface 64kbps bearer channel.

Step 710: the terminal sends a ringing message (Alerting) to the MSC through RNC-2 and RNC-1.

Step 711: the terminal sends a connect (Connect) message to the MSC through RNC-2 and RNC-1.

Step 712: MSC returns a connection confirmation (ConnectAcknowledge) message to the terminal through RNC-1 and RNC-2.

Step 713: When both parties in the call accept the call, the called terminal and the calling party enter into the multimedia voice service call process, and the call path is transferred through RNC-2 and RNC-1.

Subsequent RNC-2 or RNC-1 can initiate a redirection process to switch the session to RNC-2 without going through RNC-1.

In this embodiment, by paging the single-card dual-standby terminal under the relevant RNC, the single-card dual-standby terminal can still be paged when the single-card dual-standby terminal is not covered by the current RNC, so as to realize the VP service.

Fig. 8 is a schematic diagram of the device structure of the seventh embodiment of the present invention, including a receiving module 81 and a second paging module 82; the receiving module 81 is used to receive paging for paging a single-card dual-standby terminal sent by the CS domain core network Message; the second paging module 82 is used to page the first paging module of the single-card dual-standby terminal in the second network system corresponding to the second network control node after judging that the current service is a VP service.

The network control device in this embodiment may be an RNC, and the second network system is a UMTS system, specifically a TD-SCDMA system or a WCDMA system; or, the network control device may be an eNB, and the second network system is an LTE system; the first network control The node is BSC, and the first network system is GSM system.

Further, in this embodiment, the paging message may carry VP service indication information, and the device further includes: a first judging module, configured to judge that the current service is a VP service according to the VP service indication information.

Alternatively, the single-card dual-standby terminal resides in the second network system corresponding to the second network control node and the first network system corresponding to the first network control node at the same time, and the device further includes: a first The paging module is configured to, after judging that the single-card dual-standby terminal is paged in the first network system, communicate in the first network system through the interface between the first network control node and the second network control node Paging the single-card dual-standby terminal.

At this time, the method may further include: a second judging module, configured to judge whether to page the single-card dual-standby terminal in the first network system according to the location information carried in the paging message.

Alternatively, it may also include: a third judging module, configured to receive a setup message sent by the core network, and judge whether to perform the VP service by parsing the setup message, the setup message being that the core network receives the single-card dual-standby terminal It is sent after the paging response message sent by the first network control node and the second network control node.

Specifically, the second paging module 72 may be specifically configured to perform paging under the second network control node; according to the paging area information carried in the paging message, the network control node included in the paging area For paging under a node, the network control nodes included in the paging area include the second network control node and other network control nodes under the second network system.

The first paging module In this embodiment, by paging the single-card dual-standby terminal in the second network system, the single-card dual-standby terminal can be paged to realize the VP service.

Fig. 9 is a schematic structural diagram of a single-card dual-standby terminal according to the eighth embodiment of the present invention, the single-card dual-standby terminal resides in the first network system and the second network system at the same time, wherein the first network system is the GSM system, The second network system may be a UMTS system, specifically a TD-SCDMA system or a WCDMA system; or, the second network system is an LTE system.

The terminal may include a judging module 91 and a sending module 92; the judging module 91 is used to judge whether the single-card dual-standby terminal resides in the second network system; the sending module 92 is used to, when the judging module judges yes, Sending related signaling of the video call service call to the second control node in the second network system.

In this embodiment, by judging whether the single-card dual-standby terminal resides in the second network system, and sending signaling related to the calling of the video call service to the second control node in the second network system when camping, the VP master can be implemented. Called business.

It can be understood that related features in the above methods and devices can refer to each other. In addition, "first", "second" and so on in the above embodiments are used to distinguish each embodiment, and do not represent the advantages and disadvantages of each embodiment.

Those of ordinary skill in the art can understand that all or part of the steps for realizing the above method embodiments can be completed by hardware related to program instructions, and the aforementioned programs can be stored in computer-readable storage media. When the program is executed, the execution includes: The steps of the above-mentioned method embodiments; and the aforementioned storage medium includes: ROM, RAM, magnetic disk or optical disk and other various media that can store program codes.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: it can still be Modifications are made to the technical solutions described in the foregoing embodiments, or equivalent replacements are made to some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims (10)

1. a processing method to video phone VP business in a single-card dual-standby system, it is characterized in that, comprising: The second network control node receives the paging message for paging the single-card dual-standby terminal sent by the circuit-switched CS domain core network; After the second network control node determines that the current service is a VP service, paging the single-card dual-standby terminal in the second network system corresponding to the second network control node; The single-card dual-standby terminal resides in the second network system corresponding to the second network control node and the first network system corresponding to the first network control node at the same time; Before the second network control node determines that this service is a VP service, it further includes: after the second network control node determines that the single-card dual-standby terminal is paged in the first network system, through the first network control The interface between the node and the second network control node pages the single card dual standby terminal in the first network system. 2. The method according to claim 1, wherein the paging message carries VP service indication information, and the second network control node judges that the current service is a VP service according to the VP service indication information. 3. The method according to any one of claims 1-2, wherein the paging the single-card dual-standby terminal in the second network system corresponding to the second network control node comprises: the second network control node performs paging under the second network control node; or, The second network control node performs paging under the network control nodes included in the paging area according to the paging area information carried in the paging message, and the network control nodes included in the paging area include the second network control node and other network control nodes under the second network system. 4. The method according to claim 1, further comprising: the second network control node judging whether to page the single card dual standby in the first network system according to the location information carried in the paging message terminal. 5. The method according to claim 1, further comprising: the second network control node receiving the establishment message sent by the core network, and judging whether to carry out the VP service by analyzing the establishment message, the establishment message being the core network It is sent after receiving the paging response message sent by the single-card dual-standby terminal through the first network control node and the second network control node. 6. A network control device, characterized in that it comprises: The receiving module is configured to receive a paging message sent by a circuit-switched CS domain core network for paging a single-card dual-standby terminal; The second paging module is used for paging the single-card dual-standby terminal in the second network system corresponding to the second network control node after judging that the service is a video phone VP service; The single-card dual-standby terminal resides in the second network system corresponding to the second network control node and the first network system corresponding to the first network control node at the same time, and the device further includes: The first paging module is configured to, after judging that the single-card dual-standby terminal is paged in the first network system, communicate in the first network through the interface between the first network control node and the second network control node Paging the single-card dual-standby terminal in the system. 7. The device according to claim 6, wherein the paging message carries VP service indication information, and the device further comprises: The first judging module is configured to judge that the current service is a VP service according to the VP service indication information. 8. The device according to any one of claims 6-7, wherein the second paging module is specifically configured to perform paging under the second network control node; according to the paging message carried in the paging message The paging area information is paging under the network control nodes included in the paging area, and the network control nodes included in the paging area include the second network control node and other network control nodes under the second network system. 9. The device of claim 6, further comprising: The second judging module is configured to judge whether to page the single-card dual-standby terminal in the first network system according to the location information carried in the paging message. 10. The device of claim 6, further comprising: The third judging module is used to receive the establishment message sent by the core network, and judge whether to carry out the VP service by analyzing the establishment message. The establishment message is that the core network receives the single-card dual-standby terminal through the first network It is sent after the paging response message sent by the control node and the second network control node.

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