CN102291708A - Packet switched domain and circuit switched domain location information synchronizing method, device and system - Google Patents

Abstract

The embodiment of the invention discloses a method, a device and a system for synchronizing location information of a packet domain and a circuit domain, which relate to the communication field and are used to enable a terminal to be called in time after it is turned on or roaming. The method for synchronizing the location information of the PS domain and the CS domain provided by the embodiment of the present invention includes: paging the terminal; judging whether the paging result is timed out; if the paging result is timed out, sending a paging message to the PS domain service equipment in other coverage areas Routing the request, the request carries the location area identification code of the terminal; after receiving the request, the PS domain service device determines that if there is data of the terminal, the PS domain service device judges the location area identification code in the request Whether the code belongs to the coverage area, if not, the PS domain service device instructs the terminal to initiate a joint location update. The present invention can be applied to maintain location update of circuit domain.

Description

Method, device and system for synchronizing location information between packet domain and circuit domain

technical field

The present invention relates to the communication field, in particular to a method, device and system for synchronizing location information between packet domain and circuit domain.

Background technique

The communication network is divided into packet domain (Packet Switch, PS domain) and circuit domain (Circuit Switch, CS domain). The PS domain handles data services, such as mobile Internet access; the CS domain handles voice services, such as voice calls and short messages.

The Serving General Packet Radio Service Support Node (Serving GPRS Support Node, Serving GSN, SGSN) is a serving device in the PS domain and is used to manage data services. Mobile Switching Center (Mobile Switching Center, MSC)/User Visiting Location Register (Visiting Location Register, VLR) is a service device in the CS domain, used to call User Equipment (User Equipment, UE) and store user dynamic information; User Home Location Register (Home Location Register, HLR) is a shared device between the CS domain and the PS domain, and is used to store the basic information of the user, as well as the dynamic information of the user.

When the UE is turned on or roams to a new area, the SGSN and MSC/VLR in the coverage area where the UE is located initiates location registration to the HLR that stores the basic information of the UE. The HLR receives the new location information and requests the previous SGSN and MSC/VLR to delete the user. All data, this process is called PS domain, CS domain attachment process.

In network operation mode I, there is a Gs interface between SGSN and MSC/VLR; SGSN and MSC/VLR can communicate through the Gs interface.

In network operation mode I, the specific process for UE to perform PS domain and CS domain attachment is as follows:

The UE sends a location update request to the SGSN in its coverage area;

After the SGSN receives the location update request, it judges whether the relevant data of the UE is stored in the SGSN; if not, accepts and performs the location update;

The SGSN notifies the MSC/VLR of the same coverage area of the update result;

The SGSN and the MSC/VLR notify the update message to the HLR storing UE basic information respectively;

The HLR respectively updates the SGSN number corresponding to the registered UE to the number of the SGSN, and the VLR number registered by the UE is updated to the number of the VLR;

The HLR notifies the SGSN and MSC/VLR registered before the update respectively, and the SGSN and MSC/VLR registered before the update delete the relevant data of the UE stored respectively.

When the calling UE calls the called UE, it needs to address the called UE. The procedure for the UE to address the called party is as follows:

The MSC/VLR in the coverage area where the calling UE is located sends a call request to the HLR that stores the basic information of the called UE;

The HLR sends a PSI/PRN request to the MSC/VLR corresponding to the called UE registered with it;

The MSC/VLR corresponding to the called UE receives the PSI/PRN request;

The MSC/VLR corresponding to the called UE performs paging/pre-paging to the called UE, and returns the paging result to the HLR;

The HLR returns the paging result to the MSC/VLR in the coverage area where the calling UE is located.

In the process of implementing the present invention, the inventors found that there are at least the following problems in the prior art: in the network operation mode I, during the process of UE attaching to the PS domain and CS domain, due to UE defects, wireless network signal instability or protocol Incomplete and other factors, the type of UE attach message is not joint location update, so the SGSN in the PS domain cannot normally notify the MSC/VLR in the CS domain to perform joint location update. Therefore, the HLR can only receive the update information sent by the SGSN, but cannot receive the update information sent by the MSC/VLR. Then, the SGSN number registered in the HLR is updated, but the VLR number registered is not updated, and still points to the former VLR.

In this case, if the UE addresses the called party, after sending a call request to the HLR that stores the basic information of the UE, the HLR sends a PSI/PRN request to the MSC/VLR in the coverage area where the UE is registered, that is, The HLR sends a PSI/PRN request to the former MSC/VLR; the former MSC/VLR pages the UE, and the paging times out because the UE is not in the coverage area of the former MSC/VLR. The UE fails to address the called party, so the UE cannot be called.

Contents of the invention

On the one hand, the embodiments of the present invention provide a method for synchronizing the location information of the packet domain and the circuit domain, so that the terminal can be called in time after it is powered on or roaming.

In order to achieve the above object, embodiments of the present invention adopt the following technical solutions:

A method for synchronizing location information between a packet domain and a circuit domain, comprising:

paging terminal;

Determine whether the paging result times out;

If the paging result is timeout, then send a paging routing request to the packet domain service equipment in other coverage areas, and the request carries the location area identification code of the terminal;

After receiving the request, the PS domain service device in the coverage area where the terminal is located determines that if the data of the terminal exists, the PS domain service device determines whether the location area identification code in the request belongs to the coverage area, and if not In this coverage area, the PSD service device instructs the terminal to initiate a joint location update.

On the one hand, the embodiments of the present invention provide a circuit domain service device, so that the terminal can be called in time after it is powered on or roaming.

In order to achieve the above object, embodiments of the present invention adopt the following technical solutions:

A circuit domain service device, comprising:

The request receiving unit is configured to receive the request for extracting the user port/extracting the roaming number sent by the user's home location register;

The paging terminal unit is used for paging the terminal;

A paging timeout judging unit, used to judge whether the paging result to the terminal has timed out;

The paging routing request sending unit is configured to send the paging routing request to the PS domain service equipment in other coverage areas if the paging result is timeout.

On the one hand, the embodiments of the present invention provide a packet domain service device, so that the terminal can be called in time after it is powered on or roaming.

In order to achieve the above object, embodiments of the present invention adopt the following technical solutions:

A packet domain service device, comprising:

The paging routing request receiving unit is configured to receive the paging routing request sent by the circuit domain service device;

A paging routing request judging unit, configured to judge whether the location area identification code belongs to its coverage area according to the location area identification code in the paging routing request when it is determined that there is terminal data;

An update request sending unit, configured to send a joint location update notification request to the terminal when it is judged that the location area identification code does not belong to its coverage area.

On the one hand, the embodiments of the present invention provide a system for synchronizing the location information of the packet domain and the circuit domain, so that the terminal can be called in time after it is powered on or roaming.

In order to achieve the above object, embodiments of the present invention adopt the following technical solutions:

A system for synchronizing location information between packet domain and circuit domain, comprising: at least one user home location register; at least two packet domain service devices; at least two circuit domain service devices; each packet domain service device controls a piece of network coverage area Packet domain; each CS domain service device controls the CS domain of a network coverage area;

Wherein the circuit domain service device is used to receive the request for extracting the user port/extracting the roaming number sent by the user home location register; paging the terminal and judging whether the paging result of the terminal is timed out; if the paging result is timed out, send the request to The PS domain service equipment in other coverage areas sends paging routing requests.

The packet domain service device is configured to receive the paging routing request sent by the circuit domain service device; when it is determined that there is terminal data, according to the location area identification code in the paging routing request, determine whether the location area identification code is Belongs to its coverage area; if it is judged that the location area identification code does not belong to its coverage area, then send a joint location update notification request to the terminal.

The method, device and system for synchronizing the location information of the PS domain and the CS domain provided by the embodiments of the present invention, by judging whether the location information of the CS domain where the terminal is actually located matches the location information of the CS domain registered in the user home location register; if they do not match, then The PSD service device in the coverage area where the terminal is located notifies the terminal to initiate a joint location update, and updates the CS domain location information registered in the user home location register to the CS domain location information where the terminal is actually located. It avoids the problem that the terminal cannot be paged by paging the terminal through the old CS domain location information registered in the subscriber home location register when calling the terminal. After the terminal is turned on or roaming, it can be called in time.

Description of drawings

FIG. 1 is a schematic diagram of a method for synchronizing location information between a packet domain and a circuit domain according to an embodiment of the present invention;

FIG. 2 is a schematic diagram of another method for synchronizing location information between the packet domain and the circuit domain according to an embodiment of the present invention;

FIG. 3 is a schematic diagram of another method for synchronizing location information between the packet domain and the circuit domain according to an embodiment of the present invention;

FIG. 4 is a schematic diagram of another method for synchronizing location information between the packet domain and the circuit domain according to an embodiment of the present invention;

FIG. 5 is a schematic diagram of another method for synchronizing location information between the packet domain and the circuit domain according to an embodiment of the present invention;

FIG. 6 is a structure diagram of a user home location register according to an embodiment of the present invention;

FIG. 7 is a structural diagram of a circuit domain service device according to an embodiment of the present invention;

FIG. 8 is a structural diagram of a packet domain service device in Embodiment 1 of the present invention;

FIG. 9 is a structural diagram of a system for realizing synchronization of location information between packet domain and circuit domain according to an embodiment of the present invention;

FIG. 10 is another system structure diagram for realizing synchronization of location information between packet domain and circuit domain according to an embodiment of the present invention;

FIG. 11 is a structural diagram of another circuit domain service device according to an embodiment of the present invention;

FIG. 12 is a structural diagram of another packet domain service device according to an embodiment of the present invention;

FIG. 13 is another system structure diagram for realizing synchronization of location information between packet domain and circuit domain according to an embodiment of the present invention;

FIG. 14 is a structure diagram of another user home location register according to an embodiment of the present invention;

FIG. 15 is a structural diagram of another system for implementing synchronization of location information between the packet domain and the circuit domain according to an embodiment of the present invention.

Detailed ways

A method, device, and system for synchronizing location information between packet domain and circuit domain according to embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

Embodiment one

In order to enable the terminal to be called in time after it is turned on or roaming, the embodiment of the present invention provides a method for synchronizing the location information of the packet domain and the circuit domain. As shown in Figure 1, the method for synchronizing location information between the packet domain and the circuit domain in the embodiment of the present invention includes:

101. The circuit domain service device obtains the packet domain service device information corresponding to the terminal registered in the user home location register;

When the terminal addresses the called party, the CS domain service device will receive the request for extracting the user port/request for extracting the roaming number sent by the user home location register. Therefore, the request can carry the corresponding information of the terminal registered in the user home location register. Packet domain service device information.

Alternatively, other messages sent by the user home location register to the CS domain service device may carry the PS domain service device information corresponding to the terminal registered in the user home location register. In addition, the CS domain service device may also actively send a request message for acquiring information of the PS domain service device to the user home location register.

102. The circuit domain service device judges whether the recorded packet domain service device information corresponding to the terminal matches the obtained packet domain service device information;

103. If they do not match, the CS domain service device notifies the acquired PS domain service device to instruct the terminal to initiate a joint location update.

When there is a paging route to the PS domain service device, the CS domain service device may notify the PS domain service device through the paging route to instruct the terminal to initiate a joint location update. Alternatively, the CS domain service device sends a mobile information indication message to the user home location register, and the user home location register notifies the PS domain service device to instruct the terminal to initiate a joint location update according to the message.

In addition, before notifying the PS domain service device to instruct the terminal to initiate a joint location update, the CS domain service device may first determine whether the current CS domain status of the terminal is idle, or perform paging on the terminal, and determine the paging result Whether to timeout.

In the method for synchronizing location information between the PS domain and the CS domain provided by Embodiment 1 of the present invention, the CS domain service device obtains the PS domain service device information corresponding to the terminal registered in the user home location register, and the CS domain service device judges its recorded Whether the packet-domain service device information corresponding to the terminal matches the packet-domain service device information registered in the user home location register, and if not, then notifying the packet-domain service device registered in the user home location register to instruct the terminal to initiate a joint location update, Updating the CS domain service device information registered in the user home location register with the CS domain service device information where the terminal is actually located avoids sending a call to the terminal through the old CS domain service device registered in the user home location register when calling the terminal. In case of down-paging, the terminal cannot be paged, so that the terminal can be called in time after it is powered on or roaming.

Embodiment two

The method for synchronizing the location information of the packet domain and the circuit domain described in Embodiment 1 will be further described in detail below. This embodiment of the present invention is applicable to MSC/VLR:SGSN (1:1, 1:n, m:1, m The multiple networking of: n) requires the support of the service equipment in the CS domain, the service equipment in the PS domain, and the HLR. As shown in Figure 2, the method for synchronizing the location information of the packet domain and the circuit domain in the embodiment of the present invention includes:

201. When the terminal is addressing the called party, the circuit domain service device receives the request for extracting the user port/request for extracting the roaming number (PSI_Req/PRN_Req) sent by the user home location register to the terminal, and the request carries the packet domain location information registered in the home location register;

Specifically, it can be:

Suppose SGSN1 controls the PS domain of coverage area 1, MSC/VLR1 controls the CS domain of coverage area 1, SGSN2 controls the PS domain of coverage area 2, and MSC/VLR2 controls the CS domain of coverage area 2.

Assuming that the UE is currently in coverage area 1, the SGSN number registered in the HLR storing UE basic information is SGSN1, and the VLR number is VLR2.

When the UE is called, the HLR adds the SGSN number (SGSN1) registered in the HLR to the extraction user port request/extraction roaming number request (PSI_Req/PRN_Req).

The HLR sends the PSI_Req/PRN_Req to the registered MSC/VLR (MSC/VLR2).

MSC/VLR2 receives the PSI_Req/PRN_Req sent by HLR.

Wherein, MSC/VLR2 may directly enter step 202, and may further check whether the current circuit domain state of the called UE is idle;

If the current circuit domain state of the UE is busy, MSC/VLR2 returns the Response to Extract User Port/Response to Extract Roaming Number (PSI_Rsp/PRN_Rsp); after HLR receives the PSI_Rsp/PRN_Rsp, it proceeds according to the original process, wherein the PSI_Rsp/PRN_Rsp It is not necessary to carry the SGSN number. If the current CS domain status of the called UE is idle, go to step 202 .

202. The CS domain service device judges whether the PS domain location information registered by the terminal in the user home location register matches the PS domain service device number corresponding to the terminal recorded in the CS domain service device;

Specifically, it can be:

MSC/VLR2 judges whether the SGSN number (SGSN1) carried in the PSI_Req/PRN_Req matches the SGSN number recorded in MSC/VLR2.

During the joint location update process, SGSN1 cannot normally notify MSC/VLR1 to perform joint location update. Therefore, HLR can only receive the update information sent by SGSN1, but cannot receive the update information sent by MSC/VLR1. Therefore, the SGSN number registered in the HLR is updated, but the registered VLR number is not updated, and still points to VLR2. The HLR may notify the MSC/VLR2 that the SGSN information of the PS domain of the called UE has been updated; if the MSC/VLR2 receives the notification, it may delete the stored relevant data of the UE's PS domain. Therefore, if MSC/VLR2 does not delete the stored PS domain related data of the UE, the SGSN number recorded in MSC/VLR2 at this time is the SGSN number (SGSN2) corresponding to the UE stored when the last joint location update was successful. If the MSC/VLR2 deletes the stored PS domain related data of the UE, the SGSN number recorded in the MSC/VLR2 is NULL at this time.

The SGSN number currently recorded by the MSC/VLR2 is SGSN2 or NULL, while the SGSN number contained in the PSI_Req/PRN_Req is another SGSN, such as SGSN1. Therefore, the SGSN number (SGSN1) carried in the PSI_Req/PRN_Req does not match the SGSN number (SGSN2 or NULL) corresponding to the called UE recorded in the MSC/VLR2.

In the case of the above mismatch, MSC/VLR2 may directly enter step 207 or step 211, or may enter step 204.

If it matches, go to step 203.

203. The circuit domain service device returns a response to extract user port/response to extract roaming number;

Specifically, it can be:

If they match, the MSC/VLR2 returns the PSI_Rsp/PRN_Rsp; after the HLR receives the PSI_Rsp/PRN_Rsp, it proceeds according to the original process, wherein the PSI_Rsp/PRN_Rsp may not carry the SGSN number.

204. The CS domain service device paging the terminal;

Specifically, it can be:

The pre-paging request includes: a Gs interface pre-paging request or an Iu interface pre-paging request. If the pre-paging request is sent by SGSN2, SGSN2 will send a transparent paging message to the IU-PS port. If the user is not associated, MSC2 will directly send a paging message to the IU-CS port.

Continue to step 205 .

205. The CS domain service device determines whether the paging times out;

Specifically, it can be:

MSC/VLR2 judges whether the pre-paging to the called UE times out.

If the pre-paging for the called UE has not timed out, continue to step 206; if the pre-paging for the called UE has timed out, skip to step 207 or step 211.

206. The circuit domain service device returns an extract user port response/extract roaming number response to the user home location register;

Specifically, it can be:

If the paging response of the UE is received through the Gs interface within the prescribed time, the MSC/VLR2 returns the PSI_Rsp/PRN_Rsp to the HLR; the PSI_Rsp/PRN_Rsp can carry the SGSN number recorded in the MSC/VLR2 (herein SGSN2).

If the UE's paging response is not received within the specified time through the Gs interface, but the UE's paging response is received within the specified time through the Iu interface, the MSC/VLR2 returns PSI_Rsp/PRN_Rsp to the HLR; MSC/VLR2 according to The location area identification code (Location Area Identity, LAI) assigned to the called UE recorded therein, and the corresponding SGSN number is obtained; the PSI_Rsp/PRN_Rsp may carry the SGSN number. Further, the HLR can change the user's SGSN number according to the SGSN number.

207. The CS domain service device judges whether there is a paging route to the PS domain service device recorded in the received extract user port request/extract roaming number request;

Specifically, it can be:

Because the called UE is in the coverage area 1, the MSC/VLR2 controlling the coverage area 2 pages the UE. There is no response to the paging through the Gs and Iu interfaces within the specified time, that is, the paging times out.

The MSC/VLR2 communicates with the SGSN through the Gs interface. Therefore, the MSC/VLR2 stores the corresponding table of the SGSN connected to it and the Gs interface connected to the communication. MSC/VLR2 judges whether there is a paging route to the SGSN (SGSN1) recorded in the PSI_Req/PRN_Req according to the correspondence table. The paging route refers to the Gs interface connection between the MSC/VLR and the SGSN which is not covered by the MSC/VLR.

If MSC/VLR2 judges that there is a paging route to SGSN1, MSC/VLR2 may directly enter step 209, or may further proceed to step 208; otherwise, skip to step 211.

208. The CS domain service device notifies the user's HLR of not processing.

Specifically, it can be:

In order to avoid that the HLR of the user has been waiting for the response from the CS domain service device, which may affect the original performance, the CS domain service device should notify the HLR of the user not to process it. The circuit domain service device notifies the user's home location register that no processing can be implemented. For example, if MSC/VLR2 judges that there is a paging route to SGSN1, then MSC/VLR2 adds a flow rejection indication in PSI_Rsp/PRN_Rsp ( ERR), and the PSI/PRN response does not carry the SGSN number; MSC/VLR2 sends the PSI/PRN response to the HLR; the HLR does not do any processing after receiving the PSI/PRN response.

Proceed to step 209

209. The CS domain service device sends a paging routing request to the PS domain service device in the coverage area where the terminal is located, wherein the paging routing request notifies the PS domain service device to instruct the terminal to initiate a joint location update.

Specifically, it can be:

MSC/VLR2 may add the LAI corresponding to the called UE recorded in MSC/VLR2 to the paging routing request, and send the paging routing request to SGSN1. So that the SGSN1 can know whether it needs to instruct the UE to initiate a joint location update according to the LAI carried in the paging routing request.

Alternatively, MSC/VLR2 may also add a repair indication information element in the paging routing request, for example, adding "ERR" in the paging routing request. MSC/VLR2 sends the paging routing request to SGSN1, so that SGSN1 can know whether it needs to instruct UE to initiate joint location update according to the repair indication information element.

The paging routing request also carries the International Mobile Subscriber Identity (IMSI) of the called UE.

210. The packet domain service device learns whether it is necessary to instruct the terminal to initiate a joint location update according to the paging routing request.

Specifically, it can be:

If MSC/VLR2 adds the recorded LAI corresponding to the called UE in the paging routing request, after receiving the paging routing request, SGSN1 judges whether the LAI carried in the paging routing request belongs to the coverage area. Because the LAI is not an identification code in coverage area 1 controlled by SGSN1, SGSN1 judges that the CS domain location information registered by the called UE is in other coverage areas. SGSN1 determines that the CS domain location information where the called UE is actually located does not match the CS domain location information registered in the HLR, and SGSN1 determines that it needs to instruct the UE to initiate a joint location update.

Or, if MSC/VLR2 adds a repair indication information element in the paging routing request, after receiving the paging routing request, SGSN1 determines that the called UE The actual CS domain location information does not match the CS domain location information registered in the HLR, and SGSN1 determines that it needs to instruct the terminal to initiate a joint location update.

In addition, in the case of SGSN:MSC/VLR=1:n, SGSN1 needs to further judge whether the MSC/VLR number corresponding to the called UE recorded in SGSN1 matches the MSC/VLR number that initiated the paging routing request; , the SGSN1 judges that the CS domain location information where the called UE is actually located does not match the CS domain location information registered in the HLR.

Skip to step 213.

211. The circuit domain service device sends a mobile information instruction message to the user home location register, wherein the mobile information instruction message notifies the user home location register to notify the packet domain service device in the coverage area where the terminal is located to instruct the terminal to initiate a joint location update .

Specifically, it can be:

The circuit domain service device sends an instruction to restore the mobile information message to the user home location register, so that the user home location register restores the mobile information message according to the instruction, and knows that the packet domain service device that needs to notify the coverage area where the terminal is located instructs the terminal to initiate a joint location renew.

Alternatively, the circuit domain service device may also add a mismatch identifier to the instruction to restore the mobile information message, so that the user home location register can restore the mismatch identifier in the mobile information message according to the instruction, and know that it is necessary to notify the terminal where the coverage is. The packet domain serving device of the zone instructs the terminal to initiate a joint location update.

For example, MSC/VLR2 adds a mismatch identifier in PSI_Rsp/PRN_Rsp; the mismatch identifier may be a process rejection indication (ERR) and an SGSN number (SGSN1). MSC/VLR2 sends the PSI_Rsp/PRN_Rsp to the HLR, so that after the HLR receives the PSI_Rsp/PRN_Rsp, according to the mismatch identifier carried by the PSI_Rsp/PRN_Rsp (process rejection indication (ERR) and SGSN number (SGSN1)), Knowing the need to notify SGSN1 to instruct the called UE to initiate a joint location update.

The mobile information instruction message includes but not limited to PSI_Rsp/PRN_Rsp message.

Continue to step 212 .

212. The user home location register sends a repair procedure instruction request to the packet domain service device in the coverage area where the terminal is located, where the repair procedure instruction request instructs the terminal to initiate a joint location update;

Specifically, it can be:

The HLR sends a repair procedure instruction request to SGSN1, so that SGSN1 instructs the called UE to initiate a joint location update according to the repair procedure instruction request message. There are many ways for HLR to send a repair process indication request to SGSN1. For example, HLR sends a cancellation location request (Cancel Location) message in MAP signaling to SGSN1, or HLR sends a cancellation location carrying a repair process indication flag to SGSN1 Request (Cancel Location) message, as HLR can fill in 2 in the CancellationType item of Cancel Location message, HLR sends described Cancel Location message to SGSN1, so that SGSN1 is according to the repair process instruction mark in the described cancellation location request, indicates The called UE initiates a joint location update.

Continue to step 213 .

213. The PS domain service device instructs the terminal to initiate a joint location update.

Specifically, it can be:

If MSC/VLR2 sends a paging routing request to SGSN1, SGSN1 will forcefully issue a Detach to the called UE according to the paging routing request, the called UE receives the Detach, and the called UE sends a joint location update request

Or, if the HLR sends a repair procedure instruction request to SGSN1, then SGSN1 compulsorily sends a Detach to the called UE according to the repair procedure instruction request, the called UE receives the Detach, and the called UE sends a combined location update request.

After the update is successful, the VLR number registered in HLR is updated to VLR1; HLR sends PSI_Req/PRN_Req carrying SGSN number (SGSN1) to MSC/VLR1; MSC/VLR1 judges that the SGSN number (SGSN1) carried in PSI_Req/PRN_Req is the same The SGSN number (SGSN1) recorded in the above information matches; MSC/VLR1 pages the called UE according to the original procedure; since the called UE is in the coverage area 1, there is a response to paging the called UE. Therefore, the calling UE can call the called UE.

In the method for synchronizing location information between the PS domain and the CS domain provided by Embodiment 2 of the present invention, the PS domain service device obtains the PS domain service device information corresponding to the terminal registered in the user home location register through the CS domain service device, and the CS domain service device judges its recorded Whether the packet-domain service device information corresponding to the terminal matches the packet-domain service device information registered in the user home location register, and if not, then notifying the packet-domain service device registered in the user home location register to instruct the terminal to initiate a joint location update, Updating the CS domain service device information registered in the user home location register with the CS domain service device information where the terminal is actually located avoids sending a call to the terminal through the old CS domain service device registered in the user home location register when calling the terminal. In case of down-paging, the terminal cannot be paged, so that the terminal can be called in time after it is powered on or roaming.

The repair process in the embodiment of the present invention can also borrow existing processes and configurations, without adding additional configurations and deployments.

Embodiment Three

In Embodiment 1, according to the PS domain service equipment information corresponding to the terminal recorded in the circuit domain service equipment and the PS domain service equipment information registered in the user home location register, the PS domain and the circuit domain registered by the terminal in the user home location register are determined. Whether the domain location information is synchronized. It is also possible to determine whether the PS domain and CS domain location information registered by the terminal in the user home location register are synchronized according to the location area identification code of the terminal after determining that the paging result of the terminal is timed out. , as shown in FIG. 3 , the method for synchronizing location information between the packet domain and the circuit domain in the embodiment of the present invention includes:

301. When the terminal addresses the called party, the CS domain service device pages the terminal;

Specifically, it can be:

Suppose SGSN1 controls the PS domain of coverage area 1, MSC/VLR1 controls the CS domain of coverage area 1, SGSN2 controls the PS domain of coverage area 2, and MSC/VLR2 controls the CS domain of coverage area 2.

Assuming that the UE is currently actually in coverage area 1, the SGSN number where the UE is currently located is registered as SGSN1, and the current MSC/VLR number is MSC/VLR2 registered in the HLR storing UE basic information.

When the UE is addressed as a called party, the HLR sends a user port extraction request/extract roaming number request (PSI_Req/PRN_Req) or a roaming number incoming request or a short message termination request to its registered MSC/VLR (MSC/VLR2).

The MSC/VLR2 pages the called UE, and the paging request includes: a Gs interface paging request or an A/Iu interface paging request.

Before the MSC/VLR2 pages the called UE, it can further detect whether the current circuit domain state of the called UE is idle;

If the current circuit domain state of the UE is busy, the MSC/VLR2 returns the Response to Extract User Port/Response to Extract Roaming Number (PSI_Rsp/PRN_Rsp); after HLR receives the PSI_Rsp/PRN_Rsp, it proceeds according to the original process. If the current CS domain state of the called UE is idle, the MSC/VLR2 pages the called UE and enters step 302 .

302. The CS domain service device determines whether the paging result times out;

Specifically, it can be:

MSC/VLR2 judges whether the paging to the called UE times out.

If there is a response to the paging, the called UE is called, and if it times out, go to step 303 .

303. The CS domain service device sends a paging routing request to the PS domain service device in other coverage areas, and the request carries the location area identification code of the terminal;

Specifically, it can be:

Because the called UE is in the coverage area 1, the MSC/VLR2 controlling the coverage area 2 pages the UE, and neither the Gs interface paging nor the Iu interface paging responds, that is, the paging times out.

The MSC/VLR2 communicates with the SGSN through the Gs interface. Therefore, the MSC/VLR2 stores the corresponding table of the SGSN connected to it and the Gs interface connected to the communication. MSC/VLR2 utilizes this corresponding table to query the corresponding Gs interface of SGSNs (except SGSN2) in other coverage areas connected to it; Call routing request.

MSC/VLR2 can add the LAI corresponding to the called UE recorded in MSC/VLR2 to the paging routing request, so that after receiving the paging routing request, SGSN1 can , judging whether the CS domain location information where the called UE is actually located matches the CS domain location information registered in the HLR.

The paging routing request also carries the IMSI of the called UE. So that SGSNs in other coverage areas (except SGSN2) judge whether to store the data information of the called UE according to the IMSI of the called UE carried in the paging routing request.

304. After receiving the request, the packet domain service device in the coverage area where the terminal is located determines that there is data of the terminal; the packet domain service device judges whether the location area identification code in the request belongs to the coverage area;

Specifically, it can be:

After receiving the paging routing request, SGSN1 confirms that it stores the data information of the called UE through querying according to the IMSI carried in the paging routing request. SGSN1 judges whether the LAI carried in the paging routing request belongs to the coverage area. Because the LAI is not the identification code in the coverage area 1 controlled by SGSN1, SGSN1 determines that the CS domain location information registered in the HLR of the called UE is in other coverage areas, and SGSN1 enters step 305.

In the case of SGSN:MSC/VLR=1:n, SGSN1 needs to further judge whether the MSC/VLR number corresponding to the called UE recorded in SGSN1 matches the MSC/VLR that initiated the paging routing request; if not, then SGSN1 enters step 305 .

In addition, the SGSN that determines that there is no data information of the called UE therein may also return paging rejection to notify the MSC/VLR2 that there is no data information of the called UE in the SGSN.

305. The PS domain service device instructs the terminal to initiate a joint location update.

Specifically, it can be:

SGSN1 determines that the CS domain location information registered by the called UE in the HLR is in other coverage areas. Therefore, SGSN1 forces a Detach to the called UE, the called UE receives the Detach, and the called UE sends a joint location update request.

After the update is successful, the VLR number registered in the HLR is updated to VLR1; HLR sends PSI_Req/PRN_Req to MSC/VLR1; MSC/VLR1 pages the called UE according to the original procedure; since the called UE is in coverage area 1, the paging The called UE responds. Therefore, the calling UE can call the called UE.

In the method for synchronizing location information between the PS domain and the CS domain provided by Embodiment 3 of the present invention, after the CS domain service device determines that the paging result for the terminal is timed out, the PS domain service device in the coverage area where the terminal is located identifies according to the location area of the terminal. Code, to determine whether the location area identification code in the request belongs to the coverage area, if not, notify the packet domain service device in the coverage area where the terminal is located to instruct the terminal to initiate a joint location update, and update the user home location register The circuit domain service device information registered in the user home location register is updated to the circuit domain service device information where the terminal is actually located, which avoids paging the terminal through the old circuit domain service device registered in the user home location register when calling the terminal, and the paging fails. The problem of reaching the terminal, so that the terminal can be called in time after it is powered on or roaming.

The embodiment of the present invention is suitable for simple networking with relatively few adjacent coverage areas. The embodiment of the present invention only needs the support of the service device in the CS domain and the service device in the PS domain.

Embodiment Four

In the embodiment of the present invention, the user home location register judges whether the PS domain and CS domain position information corresponding to the registered terminal are synchronized according to the configured PS domain and CS domain position information synchronization table, as shown in FIG. 4 , the present invention The method for synchronizing location information between the packet domain and the circuit domain in an embodiment includes:

401. The user home location register determines whether the PS domain service device information corresponding to the registered terminal matches the CS domain service device information according to the configured PS domain and CS domain location information synchronization table;

402. If they do not match, the user home location register notifies the PSD service device corresponding to the registered terminal to instruct the terminal to initiate a joint location update.

Before notifying the PS domain service device to instruct the terminal to initiate a joint location update, the user home location register may also first determine that the current circuit domain status of the terminal is idle, or instruct the CS domain service device to page the terminal to determine the paging status of the terminal. If the call result is timeout, the subscriber home location register can also compare the update time of the CS domain service device information and the PS domain service device information, and determine that the update of the CS domain service device information is older than the update of the PS domain service device information.

The method for synchronizing the location information of the PS domain and the CS domain provided by Embodiment 4 of the present invention uses the user home location register to determine the PSD service device information and information corresponding to the registered terminal according to the configured PS domain and CS domain location information synchronization table. Whether the CS domain service device information matches, if not, the user home location register notifies the registered PS domain service device to instruct the terminal to initiate a joint location update, and updates the registered CS domain service device information to the CS domain service where the terminal is actually located. Device information avoids the problem that the terminal cannot be paged through the old circuit domain service device registered in the user home location register when calling the terminal, so that the terminal can be accessed in time after it is powered on or roaming. call to.

Embodiment five

The method for synchronizing location information between packet domain and circuit domain described in Embodiment 4 will be further described in detail below. This embodiment of the present invention is applicable to two types of networking of MSC/VLR:SGSN (1:1, 1:n) , only HLR support is required, as shown in Figure 5, the method for synchronizing location information between the packet domain and the circuit domain in the embodiment of the present invention includes:

501. The user home location register judges whether the PS domain service device information corresponding to the registered terminal matches the CS domain service device information according to the configured PS domain and CS domain location information synchronization table;

Specifically, it can be:

Suppose SGSN1 controls the PS domain of coverage area 1, MSC/VLR1 controls the CS domain of coverage area 1, SGSN2 controls the PS domain of coverage area 2, and MSC/VLR2 controls the CS domain of coverage area 2.

Assuming that the UE is currently in coverage area 1, the SGSN number registered in the HLR storing UE basic information is SGSN1, and the VLR number is VLR2.

When the UE is called, HLR sends PSI_Req/PRN_Req to MSC/VLR2; MSC/VLR2 receives PSI_Req/PRN_Req. The HLR configures the mapping correspondence table between MSC/VLR and SGSN controlling the same coverage area. According to the mapping table, the HLR judges whether the VLR number (VLR2) and the SGSN number (SGSN1) corresponding to the called UE registered in the HLR are in the same coverage area. If they are in the same coverage area, proceed according to the original process, that is, send PSI_Req/PRN_Req to MSC/VLR2. If not in the same coverage area, go to step 502.

Before the HLR judges whether the VLR number and the SGSN number corresponding to the called UE registered in the HLR are in the same coverage area according to the mapping table, the HLR can further notify the MSC/VLR2 to check whether the current circuit domain status of the called UE is idle ; MSC/VLR2 adds the inspection result to PSI_Rsp/PRN_Rsp and returns to HLR.

If the current circuit domain state of the UE is busy, the HLR does not judge according to the mapping table, but proceeds according to the original process; if the current circuit domain state of the UE is idle, the HLR judges according to the mapping table.

In addition, in addition to addressing the UE as the called party, the HLR detects whether the VLR number and the SGSN number corresponding to the UE registered in the HLR are in the same coverage area according to the mapping table, and can also periodically and regularly according to the mapping table, Detect whether the VLR number corresponding to the UE registered in the HLR and the SGSN number are in the same coverage area. If not in the same coverage area, go to step 502.

502. The user home location register notifies the CS domain service device corresponding to the registered terminal to paging the terminal;

Specifically, it can be:

There are many ways for HLR to notify MSC/VLR2 of paging UE. For example, HLR sends PSI_Req/PRN_Req to MSC/VLR2; MSC/VLR2 pages called UE after receiving the PSI_Req/PRN_Req.

Before the HLR notifies the MSC/VLR2 to page the UE, it may further determine whether the update of the location information in the CS domain is older than the update of the location information in the PS domain. When the HLR receives the update information of the MSC/VLR and SGSN each time, it will record the time of receiving the update information, that is, the recorded update time of the MSC/VLR and SGSN.

If the VLR corresponding to the called UE registered in the HLR is not in the same coverage area as the SGSN and the update of the VLR number is older than the update of the SGSN number, the HLR can determine the location information of the CS domain where the called UE is actually located and the CS domain registered in the HLR. The location information does not match.

If the update of the VLR number is not older than the update of the SGSN number, proceed according to the original flow, that is, the HLR sends PSI_Req/PRN_Req to the MSC/VLR2.

503. The user home location register obtains the paging result of the CS domain service device for the terminal; and learns whether the paging result for the terminal is timed out.

Specifically, it can be:

There are many ways for the HLR to obtain the paging result of the MSC/VLR2 to the called UE. For example, the MSC/VLR2 returns the PSI_Rsp/PRN_Rsp carrying the paging result to the HLR, and the HLR receives the PSI_Rsp/PRN_Rsp.

According to the received PSI_Rsp/PRN_Rsp, the HLR knows whether the paging result for the called UE is timed out. If the paging has not timed out, proceed according to the original flow. If the paging to the called UE is timed out, continue to step 504 .

504. The user home location register sends a repair procedure indication request message to the packet domain service device corresponding to the terminal registered with it;

The HLR sends a repair procedure instruction request message to SGSN1, so that SGSN1 instructs the called UE to initiate a joint location update according to the repair procedure instruction request message. There are many ways for HLR to send a repair process indication request message to SGSN1. For example, HLR sends a cancellation location request (Cancel Location) message in MAP signaling to SGSN1, or HLR sends a cancellation message carrying a repair process indication flag to SGSN1. For a location request (Cancel Location) message, if HLR fills in 2 in the CancellationType item of the Cancel Location message, HLR sends the Cancel Location message to SGSN1, so that SGSN1 instructs the called UE to initiate a combined location according to the cancellation location request renew.

Continue to step 505 .

505. The PS domain service device notifies the terminal to initiate a joint location update.

The HLR sends a repair procedure instruction request to the SGSN1, and the SGSN1 forces a Detach to the called UE according to the repair procedure instruction request, the called UE receives the Detach, and the called UE sends a combined location update request.

After the update is successful, the VLR number registered in the HLR is updated to VLR1; the HLR sends a PSI_Req/PRN_Req carrying the SGSN number (SGSN1) to the MSC/VLR1; The SGSN number (SGSN1) corresponding to the called UE and the VLR number (VLR1) belong to the same coverage area; MSC/VLR1 pages the called UE according to the original procedure; UE responds. Therefore, the calling UE can call the called UE.

The method for synchronizing PSD and CS domain location information provided by Embodiment 5 of the present invention uses the user home location register to determine the PSD service device information and information corresponding to the registered terminal according to the configured PSD and CS domain location information synchronization table. Whether the CS domain service device information matches, if not, the user home location register notifies the registered PS domain service device to instruct the terminal to initiate a joint location update, and updates the registered CS domain service device information to the CS domain service where the terminal is actually located. Device information avoids the problem that the terminal cannot be paged through the old circuit domain service device registered in the user home location register when calling the terminal, so that the terminal can be accessed in time after it is powered on or roaming. call to.

Embodiment six

In order to enable the terminal to be called in time after it is turned on or roaming, an embodiment of the present invention provides a user home location register. As shown in Figure 6, the user's home location register in the embodiment of the present invention includes:

The packet domain location information adding module 601 is used to add the packet domain service device information corresponding to the registered terminal in the extraction user port request/extraction roaming number request;

The request sending unit 602 is configured to send the request to the CS domain service device corresponding to the registered terminal.

The user home location register also includes: an instruction recovery movement information receiving unit 603, configured to receive the instruction recovery movement information sent by the circuit domain service device; a repair process instruction request sending unit 604, used to receive the instruction recovery movement information, and send to the registration The packet domain service device corresponding to the terminal sends a repair procedure indication request.

The user home location register provided by Embodiment 6 of the present invention sends the PS domain service device information corresponding to the registered terminal to the CS domain service device corresponding to the registered terminal, so that the CS domain service device can determine the information it records. Whether the PS domain service device information corresponding to the terminal matches the PS domain service device information registered in the user home location register. And restore the mobile information according to the instruction sent by the CS domain service device received, and send a repair process instruction request to the registered PS domain service device, so that the PS domain service device instructs the terminal to initiate a joint location update, and the registered CS domain service device The information is updated to the information of the CS domain service device where the terminal is actually located, which avoids the problem that the terminal cannot be paged through the old CS domain service device registered in the user home location register when calling the terminal, and the terminal cannot be paged. After turning on or roaming, it can be called in time.

Embodiment seven

Corresponding to Embodiment 6, this embodiment of the present invention provides a circuit domain service device. As shown in FIG. 7 , the circuit domain service device according to this embodiment of the present invention includes:

The request receiving unit 701 is configured to receive the request for extracting the user port/extracting the roaming number sent by the user's home location register;

A request judging unit 702, configured to judge whether the recorded packet domain service device information corresponding to the terminal matches the packet domain service device information carried in the request;

The notification unit 703 is configured to send a request for notifying the PSD service device to instruct the terminal to initiate a joint location update.

The notification unit 703 further includes:

A paging route judging subunit, configured to judge whether there is a paging route to the packet domain service device recorded in the request;

A paging routing request sending subunit, configured to send a paging routing request to the PS domain service device when judging that there is a paging route to the PS domain service device recorded in the request;

Alternatively, the notification unit 703 further includes a subunit for sending information indicating movement recovery, configured to send information indicating movement recovery to the user's home location register.

The CS domain service device further includes a paging unit, which is used to page the terminal, and judge whether the paging result to the terminal has timed out, and if it times out, the notification unit sends a notification to the PS domain service device to instruct the terminal to initiate a joint location update request.

The CS domain service device further includes an idle judging unit for judging whether the current CS domain status of the terminal is idle, and notifying the paging unit to page the terminal if judged to be idle.

The CS domain service device provided by Embodiment 7 of the present invention, by obtaining the PS domain service device information corresponding to the terminal registered in the user home location register, judges whether the recorded PS domain service device information corresponding to the terminal is consistent with the user home location register If it does not match, notify the PS domain service device registered in the user's home location register to instruct the terminal to initiate a joint location update, and update the CS domain service device information registered in the user's home location register It is the information of the circuit domain service equipment where the terminal is actually located, which avoids the problem that the terminal cannot be paged through the old circuit domain service equipment registered in the user home location register when calling the terminal, so that the terminal cannot be paged when it is turned on. or roaming, can be called in time.

Embodiment Eight

Corresponding to Embodiments 6 and 7, this embodiment of the present invention provides a packet domain service device. As shown in FIG. 8 , the packet domain service device in this embodiment of the present invention includes:

The receiving unit 801 is configured to receive a paging routing request sent by a circuit domain service device or receive a repair procedure instruction request sent by a user home location register;

The receiving unit 801 also includes a location area identification code judging subunit, which is used to judge whether the location area identification code belongs to its coverage area according to the location area identification code in the received paging routing request, and if not, update the request The sending unit sends a joint location update notification request to the terminal.

An update request sending unit 802, configured to send a joint location update notification request to the terminal.

The packet domain service device provided in Embodiment 8 of the present invention, by receiving the paging routing request sent by the circuit domain service device or the repair procedure instruction request sent by the user home location register, instructs the terminal to initiate a joint location update, and updates the user home location register The circuit domain service device information registered in the user home location register is updated to the circuit domain service device information where the terminal is actually located, which avoids paging the terminal through the old circuit domain service device registered in the user home location register when calling the terminal, and the paging fails. The problem of reaching the terminal, so that the terminal can be called in time after it is powered on or roaming.

Embodiment nine

In order to enable the terminal to be called in time after it is powered on or roaming, the embodiment of the present invention provides a system for synchronizing the location information of the packet domain and the circuit domain. As shown in FIG. 9 , the system for synchronizing location information between PS domain and CS domain according to the embodiment of the present invention includes: at least one user home location register 901; at least two PS domain service devices 902; at least two CS domain service devices 903; Each PS domain service device 902 controls the PS domain of a network coverage area; each CS domain service device 903 controls the CS domain of a network coverage area;

Wherein, the user home location register 901 is used to add the PS domain service device information corresponding to the registered terminal in the request for extracting the user port/extracting the roaming number request; and send the request to the CS domain service device 903 corresponding to the registered terminal ;

The circuit domain service device 903 is configured to receive the request for extracting the user port/request for extracting the roaming number sent by the user home location register 901; and determine whether the recorded packet domain service device information corresponding to the terminal is consistent with the group information carried in the request. Domain service device information matching; judging whether there is a paging route to the packet domain service device recorded in the request; when judging that there is a paging route to the packet domain service device 902 recorded in the request, send The service device 902 sends a paging routing request;

The PS domain service device 902 is configured to receive the paging routing request sent by the CS domain service device 903; and send a joint location update notification request to the terminal.

Embodiment ten

Embodiments of the present invention can also provide a system for synchronizing location information between packet domain and circuit domain. As shown in FIG. 10 , the system for synchronizing location information between PS domain and CS domain according to the embodiment of the present invention includes: at least one user home location register 1001; at least two PS domain service devices 1002; at least two CS domain service devices 1003; Each PS domain service device 1002 controls the PS domain of a network coverage area; each CS domain service device 1003 controls the CS domain of a network coverage area;

Wherein, the user home location register 1001 is used to add the PS domain service device information corresponding to the registered terminal in the request for extracting the user port/extracting the roaming number request; and send the request to the CS domain service device 1003 corresponding to the registered terminal ; Receive the instruction sent by the circuit domain service device to restore the mobile information; send a repair process instruction request to the packet domain service device 1002 corresponding to the registered terminal;

The circuit domain service device 1003 is configured to receive the request for extracting the user port/extracting the roaming number sent by the user home location register 1001; determine whether the recorded packet domain service device information corresponding to the terminal is consistent with the group information carried in the request Domain service device information matching; sending instructions to the user home location register 1001 to restore mobile information;

The packet domain service device 1002 is configured to receive the repair procedure indication request sent by the user home location register 1001; and send a joint location update notification request to the terminal.

Embodiments 9 and 10 provide a system for synchronizing location information between the PS domain and the CS domain. The CS domain service device obtains the PS domain service device information corresponding to the terminal registered in the user home location register through the CS domain service device, and the CS domain service device judges its recorded Whether the packet-domain service device information corresponding to the terminal matches the packet-domain service device information registered in the user home location register, and if not, then notifying the packet-domain service device registered in the user home location register to instruct the terminal to initiate a joint location update, Updating the CS domain service device information registered in the user home location register with the CS domain service device information where the terminal is actually located avoids sending a call to the terminal through the old CS domain service device registered in the user home location register when calling the terminal. In case of down-paging, the terminal cannot be paged, so that the terminal can be called in time after it is powered on or roaming.

Embodiment Eleven

In order to enable the terminal to be called in time after it is powered on or roaming, an embodiment of the present invention provides a circuit domain service device. As shown in Figure 11, the circuit domain service device according to the embodiment of the present invention includes:

The request receiving unit 1101 is configured to receive the request for extracting the user port/extracting the roaming number sent by the user's home location register;

Paging terminal unit 1102, used for paging the terminal;

A paging timeout judging unit 1103, configured to judge whether the paging result to the terminal has timed out;

A paging routing request sending unit 1104, configured to send paging routing requests to PS domain service devices in other coverage areas.

The CS domain service device provided by Embodiment 11 of the present invention sends a paging routing request to the PS domain service device in other coverage areas by paging the terminal, after judging that the paging result is timeout, so that the PS domain of the coverage area where the terminal is located According to the paging routing request, the service device instructs the terminal to initiate a joint location update, and updates the CS domain service device information registered in the user home location register to the CS domain service device information where the terminal is actually located, so as to avoid calling the terminal through the user The old circuit domain service equipment registered in the home location register paging the terminal, but the terminal cannot be paged, so that the terminal can be called in time after it is turned on or roaming.

Embodiment 12

Corresponding to Embodiment Eleven, this embodiment of the present invention provides a packet domain service device. As shown in FIG. 12 , the packet domain service device in this embodiment of the present invention includes:

A paging routing request receiving unit 1201, configured to receive a paging routing request sent by a circuit domain service device;

The paging routing request judging unit 1202 is configured to judge whether the location area identification code belongs to its coverage area according to the location area identification code in the paging routing request when it is determined that there is terminal data;

The update request sending unit 1203 is configured to send a joint location update notification request to the terminal when it is judged that the location area identification code does not belong to its coverage area.

The packet domain service device provided by Embodiment 12 of the present invention, by receiving the paging routing request sent by the circuit domain service device, instructs the terminal to initiate a joint location update, and updates the information of the circuit domain service device registered in the user home location register to the actual location of the terminal. The information of the circuit domain service device where it is located avoids the problem that the terminal cannot be paged through the old circuit domain service device registered in the user home location register when calling the terminal, so that the terminal cannot be paged after it is turned on or roaming. , can be called in time.

Embodiment Thirteen

In Embodiments 9 and 10, according to the PS domain service device information corresponding to the terminal recorded in the circuit domain service device and the PS domain service device information registered in the user home location register, the PS domain registered by the terminal in the user home location register is determined. Whether it is synchronized with the CS domain location information. It is also possible to determine whether the PS domain and CS domain location information registered by the terminal in the user home location register are synchronized according to the location area identification code of the terminal after determining that the paging result of the terminal is timed out. As shown in FIG. 13 , the system for synchronizing location information between PS domain and CS domain according to an embodiment of the present invention includes: at least one user home location register 1301; at least two PS domain service devices 1302; at least two CS domain service devices 1303; Each packet domain service device 1302 controls the packet domain of a network coverage area; each circuit domain service device 1303 controls the circuit domain of a network coverage area;

Wherein the circuit domain service device 1303 is used to receive the request for extracting the user port/extracting the roaming number sent by the user home location register 1301; paging the terminal and judging whether the paging result of the terminal is timed out; if the paging result is timed out, Then send a paging routing request to the PS domain service device 1302 in other coverage areas.

The packet domain service device 1302 is configured to receive the paging routing request sent by the circuit domain service device 1303; when it is determined that there is terminal data, determine the location area identification code according to the location area identification code in the paging routing request Whether the code belongs to its coverage area; if it is judged that the location area identification code does not belong to its coverage area, then send a joint location update notification request to the terminal.

In the system for synchronizing location information between the PS domain and the CS domain provided by Embodiment 13 of the present invention, after the CS domain service device determines that the paging result for the terminal is timed out, the PS domain service device in the coverage area where the terminal is located according to the location area of the terminal identification code, to determine whether the location area identification code in the request belongs to the coverage area, if not, notify the packet domain service device in the coverage area where the terminal is located to instruct the terminal to initiate a joint location update, and update the user's home location The CS domain service device information registered in the register is updated to the CS domain service device information where the terminal is actually located, so as to avoid paging the terminal through the old CS domain service device registered in the user home location register when calling the terminal. The problem of not being able to reach the terminal, so that the terminal can be called in time after it is powered on or roaming.

Embodiment Fourteen

In order to enable the terminal to be called in time after it is turned on or roaming, an embodiment of the present invention provides a user home location register. As shown in Figure 14, the user home location register in the embodiment of the present invention includes:

A synchronization correspondence table configuration unit 1401, configured to configure a synchronization correspondence table between packet domain and circuit domain location information;

A synchronization judging unit 1402, configured to judge whether the PS domain service device information corresponding to the registered terminal matches the CS domain service device information according to the configured PS domain and CS domain location information synchronization table;

The repair process indication request sending unit 1403 is configured to send a repair process indication request to the PS domain service device.

The user home location register further includes an update comparison unit 1404, configured to determine whether the update of the location information in the circuit domain is older than the update of the location information in the packet domain.

The user home location register provided by the fourteenth embodiment of the present invention judges whether the PS domain service device information corresponding to the registered terminal matches the CS domain service device information according to the configured PS domain and CS domain location information synchronization table, if If it does not match, it will notify the registered packet domain service device to instruct the terminal to initiate a joint location update, and update the information of the registered circuit domain service device to the information of the circuit domain service device where the terminal is actually located. The old circuit domain service equipment registered in the register paging the terminal, but the terminal cannot be paged, so that the terminal can be called in time after it is powered on or roaming.

Embodiment 15

In the embodiment of the present invention, the user home location register judges whether the PS domain and CS domain position information corresponding to the registered terminal are synchronized according to the configured PS domain and CS domain position information synchronization table, as shown in FIG. 15 , the present invention Embodiment The system for synchronizing location information between PS domain and CS domain includes: at least one user home location register 1501; at least two PS domain service devices 1502; at least two CS domain service devices 1503; each PS domain service device 1502 controls a The packet domain of the network coverage area; each CS domain service device 1503 controls a CS domain of the network coverage area;

Wherein, the user home location register 1501 is used to determine whether the PS domain service device information corresponding to the registered terminal matches the CS domain service device information according to the configured PS domain and CS domain location information synchronization table; if they do not match, then Send a repair process instruction request to the packet domain service device 1502;

The packet domain service device 1502 is configured to receive the repair process instruction request sent by the user home location register 1501; and send a joint location update notification request to the terminal.

The system for synchronizing PS domain and CS domain location information provided by Embodiment 15 of the present invention judges the PS domain service device information corresponding to the registered terminal according to the configured PS domain and CS domain location information synchronization table through the user home location register Whether it matches the CS domain service device information, if not, the user home location register notifies the registered PS domain service device to instruct the terminal to initiate a joint location update, and updates the registered CS domain service device information to the CS domain where the terminal is actually located Service device information avoids the problem that the terminal cannot be paged through the old circuit domain service device registered in the user home location register when calling the terminal, so that the terminal can timely call after it is turned on or roaming. was called to.

The above is only a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Anyone skilled in the art can easily think of changes or substitutions within the technical scope disclosed in the present invention. Should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims (5)

1. A method for synchronizing location information between packet domain and circuit domain, characterized in that it comprises: paging terminal; Determine whether the paging result has timed out; If the paging result is timeout, then send a paging routing request to the packet domain service equipment in other coverage areas, and the request carries the location area identification code of the terminal; After receiving the request, the packet domain service device determines that if there is data of the terminal, the packet domain service device judges whether the location area identification code in the request belongs to the coverage area, and if it does not belong to the coverage area, then The packet domain service device instructs the terminal to initiate a joint location update. 2. The method for synchronizing location information between the packet domain and the circuit domain according to claim 1, wherein the step of paging the terminal also includes: It is determined that the current circuit domain state of the terminal is idle. 3. A CS domain service device, comprising: The request receiving unit is configured to receive the request for extracting the user port/extracting the roaming number sent by the user's home location register; The paging terminal unit is used for paging the terminal; A paging timeout judging unit, used to judge whether the paging result to the terminal has timed out; The paging routing request sending unit is configured to send the paging routing request to the PS domain service equipment in other coverage areas if the paging result is timeout. 4. A packet domain service device, characterized in that it comprises: The paging routing request receiving unit is configured to receive the paging routing request sent by the circuit domain service device; A paging routing request judging unit, configured to judge whether the location area identification code belongs to its coverage area according to the location area identification code in the paging routing request when it is determined that there is terminal data; An update request sending unit, configured to send a joint location update notification request to the terminal when it is judged that the location area identification code does not belong to its coverage area. 5. A system for synchronizing location information between PS domain and CS domain, characterized in that it includes: at least one user home location register; at least two PS domain service devices; at least two CS domain service devices; each PS domain service device Control the packet domain of a network coverage area; each circuit domain service device controls the circuit domain of a network coverage area; Wherein the circuit domain service device is used to receive the request for extracting the user port/extracting the roaming number sent by the user home location register; paging the terminal and judging whether the paging result of the terminal is timed out; if the paging result is timed out, send the request to PS domain service equipment in other coverage areas send paging routing requests; The packet domain service device is configured to receive the paging routing request sent by the circuit domain service device; when it is determined that there is terminal data, according to the location area identification code in the paging routing request, determine whether the location area identification code is Belongs to its coverage area; if it is judged that the location area identification code does not belong to its coverage area, then send a joint location update notification request to the terminal.

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