WO2011069365A1

WO2011069365A1 - Mobile communication process establishing method, system and home location register

Info

Publication number: WO2011069365A1
Application number: PCT/CN2010/075067
Authority: WO
Inventors: 吴亚; 穆建宏
Original assignee: 中兴通讯股份有限公司
Priority date: 2009-12-07
Filing date: 2010-07-08
Publication date: 2011-06-16
Also published as: CN101730068B; CN101730068A

Abstract

A method, a system and a home location register for mobile communication process ESTABLISHING are provided by the present invention, and the method includes: the home location register receives a request message from the mobile switching center of a first network, wherein the request message is used for requesting the position information of a user; the home location register returns a response message to the mobile switching center of the first network, wherein the response message carries the network pass number of a second network; the mobile switching center of the first network establishes communications with the mobile switching center of the second network with the response message. The invention realizes the function of the dual network single standby service with a single number, especially for voice calling service and short message service. By the present invention, the user can realize a cross-network and cross-operator seamless roam with a dual-mode terminal, the network quality can be improved, and the cost of the operators is further reduced. In addition, the operator can also apply the function to provide various flexible network services and operation services.

Description

The present invention relates to the field of communications, and in particular to a method and system for establishing a mobile communication procedure, and a home location register. BACKGROUND At present, with the development of mobile communication networks, the trend of network convergence is gradually becoming obvious, and the convergence of fixed networks, mobile networks, and broadband networks has become a trend. Among them, the broadband code corresponding to the two standard camps of the 3rd Generation Partnership Project (3GPP) and the 3rd Generation Partnership Project 2 (3GPP2) in the mobile network The integration of Wideband Code Division Multiple Access (WCDMA) networks and Code Division Multiple Access (CDMA) networks has also been carried out in full swing. How to improve the user experience, how to better use the existing network to provide better services to users, these have given rise to the market demand for operators to carry out converged services. Single-number dual-network single-standby means that the mobile communication user has a mobile phone number, which can be registered and roamed on two networks, but only one network registration standby is allowed at the same time. Typically, the two networks are networks of different standards, such as WCDMA networks and CDMA networks. The user terminal can automatically select the registered network according to the strength of the network signal, which has many benefits for saving operator investment, improving user experience, and promoting network and service integration. At present, the number portability service widely carried out in the world is also a kind of network convergence, which can realize that the user does not change the number when changing the network. However, before the user replaces the home network in the business hall, the user can only have one type of network, that is, it does not really have two. Kind of network signing. Moreover, number portability requires that the two network coverages must overlap, otherwise the user cannot replace the network according to their own wishes. At present, there are also some technologies that use the methods of forwarding, protocol conversion, etc. to achieve interworking between dual networks, such as free lines between networks. Most of them directly route calls from different networks to the switch currently registered by the user. During the roaming process of the dual network, the location information changes continuously, and the currently registered switch is not the switch to which the user belongs. As a result, the switch from the different network and the user can not establish communication, and the call from the different network cannot reach the switch to which the user belongs, so that some characteristic services of the user, such as ring tones and smart services, cannot be triggered. It rang the user's body-risk. SUMMARY OF THE INVENTION In the implementation of the single-number dual-network single-standby service, the currently registered switch is not the switch to which the user is currently assigned, thereby causing the problem that the switch from the different network and the user to which the user belongs cannot establish communication. The main object of the present invention is to provide a method and system for establishing a mobile communication process and a home location register to solve at least one of the above problems. In order to achieve the above object, according to an aspect of the present invention, a method of establishing a mobile communication process is provided. The method for establishing a mobile communication procedure according to the present invention includes: a home location register receiving a request message of a first network mobile switching center, wherein the request message is used to request location information of the user; and the home location register returns a response to the first network mobile switching center The message, where the response message carries the second network over-the-network number; the first network mobile switching center establishes communication with the second network mobile switching center by using the response message. Preferably, after the home location register receives the request message of the first network mobile switching center, the method further includes: determining, by the home location register, that the location information of the user in the first network does not exist and that the user is second Location information of the network; The home location register determines that the user belongs to the single-number dual-network single-standby user. Preferably, the second network over-the-network number includes a gateway mobile switching center address; the process of establishing communication with the second network mobile switching center by using the response message includes: the first network mobile switching center exchanges by using the gateway The central address establishes a connection with the gateway mobile switching center of the second network mobile switching center; and connects to the second network mobile switching center through the gateway mobile switching center. Preferably, the process of connecting to the second network mobile switching center by the gateway mobile switching center comprises: the gateway mobile switching center sending a routing query request to the home location register; the home location register responding to the route Querying a request, obtaining, by the second network mobile switching center, a roaming number, and transmitting the roaming number to the gateway mobile switching center; the gateway mobile switching center uses the roaming number to send the mobile switching center from the first network The signaling is connected to the second network mobile switching center. Preferably, the route query request message is a terminating route request message of the second network. Preferably, before the home location register receives the request message of the first network mobile switching center, the method further comprises: the second network mobile switching center sending a location update request to the home location register, wherein the location update request is used to request the user The location information is updated; the home location register deletes the first network location information registered by the user, increases the second network location information registered by the user, and sends a location deletion request to the first network mobile switching center, where the location deletion request is used for the request Deleting the location information of the user; the first network mobile switching center receives the location deletion request, and clears the user location information saved by the user. Preferably, before the home location register deletes the first network location information registered by the user, the method further includes: the home location register determines that the user belongs to the single-number dual-network single-standby user; and the home location register determines that the first network location information registered by the user exists. . In order to achieve the above object, according to another aspect of the present invention, a home location register is provided. The home location register according to the present invention includes: a receiving module, configured to receive a request message of the first network mobile switching center, where the request message is used to request location information of the user; and the sending module is configured to return to the first network mobile switching center a response message, where the response message carries a second network over-the-network number. Preferably, the home location register further includes: a first determining module, configured to determine whether there is location information of the first network of the user; and a second determining module, configured to determine whether location information of the second network of the user exists. Preferably, the home location register further includes: a third determining module, configured to determine whether the user belongs to the single-number dual-network single-standby user. Preferably, the home location register further includes: a processing module, configured to delete first network location information registered by the user, add second network location information registered by the user, and send a location deletion request to the first network mobile switching center, where The location deletion request is used to request the deletion of the user's location information. In order to achieve the above object, according to another aspect of the present invention, a system for establishing a mobile communication process is provided. The system for establishing a mobile communication process according to the present invention includes: a first network mobile switching center, configured to send a request message, wherein the request message is used to request location information of the user; The server is configured to receive the request message, and return a response message to the first network mobile switching center, where the response message carries the second network network number to enable the first network mobile switching center to move through the response message and the second network The switching center establishes communication. Preferably, the system further comprises: a gateway mobile switching center, configured to receive the second network over-the-network number, and perform the network-switching according to the second network-over-network number, and send a route query request message to the home location register. According to the present invention, the request message of the first network mobile switching center is received by the home location register, wherein the request message is used to request location information of the user; the home location register returns a response message to the first network mobile switching center, wherein the response message The second network mobile switching center carries the second network over-the-network number; the first network mobile switching center establishes communication with the second network mobile switching center by using the response message, and solves the problem that the related technologies are difficult to implement the single-number dual-network single-standby service, especially the voice and short message service. The problem of convergence has achieved the effect of being able to communicate easily across networks and across carriers simply and conveniently. BRIEF DESCRIPTION OF THE DRAWINGS The accompanying drawings, which are set to illustrate,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,, BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic diagram showing the structure of a network element network of a mobile communication system according to an embodiment of the present invention; FIG. 2 is a flow chart showing a method for establishing a mobile communication process according to an embodiment of the present invention; A flow chart of registration messages between a home location register and a mobile switching center in a mobile communication system according to an embodiment of the present invention; FIG. 4 is a diagram of a terminal between a home location register and a mobile switching center in a mobile communication system according to an embodiment of the present invention. FIG. 5 is a schematic diagram of a network deployment of an international gateway office providing a multinational roaming application according to an embodiment of the present invention; and FIG. 6 is a schematic diagram of a home location register according to an embodiment of the present invention. BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, the present invention will be described in detail with reference to the accompanying drawings. It should be noted that the embodiments in the present application and the features in the embodiments may be combined with each other without conflict. The implementation of the technical solution will be further described in detail below. Method Embodiments According to an embodiment of the present invention, a method of establishing a mobile communication process is provided. FIG. 2 is a schematic flow chart of a method for establishing a mobile communication process according to an embodiment of the present invention. As shown in FIG. 2, the method includes the following steps S202 to S206: Step S202: The home location register receives a request message of the first network mobile switching center, where the request message is used to request location information of the user; Step S204, attribution The location register returns a response message to the first network mobile switching center, where the response message carries the second network network number; and in step S206, the first network mobile switching center establishes communication with the second network mobile switching center by using the response message. In this embodiment, after the network mobile switching center is received by the home location register, the second network network number is returned to the network mobile switching center, which solves the problem that the related technology is difficult to implement single-number dual-network single-standby services, especially voice and short. The problem of the convergence of message services has achieved the effect of being able to communicate easily across networks and across carriers simply and conveniently. The implementation process of the embodiment of the present invention will be described in detail below with reference to examples. The following embodiments take the WCDMA network and the CDMA network in mobile communication as an example, but are not limited to

Both the WCDMA network and the CDMA network can implement the single-number dual-network single-standby function by using the method provided by the present invention. On the protocol standard interface between the Home Location Register (HLR) and the Mobile Services Switching Center (MSC) network element, the upper layer transport protocol is the Mobility Application Part (Mbility Application Part, referred to as MAP) Ten discussions. Gateway Mobile-services Switching Center (Gateway) The GMSC is usually located at the boundary of the bone network gateway or interacting with other networks. FIG. 1 is a schematic structural diagram of a network element network of a mobile communication system according to an embodiment of the present invention. As shown in FIG. 1, the mobile switching centers 11 and 12 are switching network elements located in different geographical locations of the visited place, and the gateway mobile switching center 13 is a switching network element that serves as a function of connecting different network gateways at the boundary of the visited place. The gateway mobile switching center GMSC 14 is a switching network element that is located at the homeland boundary to serve as a different network gateway role. The Home Location Register (HLR) 15 is a home network element, and stores various subscription information and current location information of the home user. The mobile switching center MSC 16 is a switching network element located at the home location. The MSC 11, the MSC 12, and the GMSC 13 belong to a mobile network, and the GMSC 14 and the MSC 16 belong to another mobile network. The technical solution does not involve any modification; the HLR 15 requires a hybrid HLR network element, and the storage user is in two types. Signing information and location information in the network. The establishment of the converged HLR makes the user not aware of the existence of the two networks, because the user's subscription operation is directed to the two networks at the same time, that is, the service information is independent of the network type, and the user does not need to change the service in the two networks. Change once. 3 is a flow chart of a registration message between a home location register and a mobile switching center in a mobile communication system in accordance with an embodiment of the present invention. As shown in FIG. 3, the method includes the following steps: Step S301: The WCDMA network mobile switching center sends a location update (Location Update, LU for short) request to the home location register, requesting to update the current location information of the user. Step S302: The home location register determines that the user belongs to the single-number dual-network single-standby user, and the location information of the CDMA network originally registered by the user exists, deletes the CDMA network location information originally registered by the user, and sends the location to the CDMA network mobile switching center. Registration Cancellation. Step S303: The home location register continues the processing of the subsequent location update, and returns a successful response to the WCDMA MSC. Step S304: After receiving the location deletion request, the CDMA network mobile switching center clears the internally stored user location information, and returns an acknowledgement response to the home location register. This registration process is over. 4 is a flow chart of a call routing message between a home location register and a mobile switching center in a mobile communication system according to an embodiment of the present invention. As shown in FIG. 4, the process of terminating the routing message is as follows: Step 401: The CDMA network mobile switching center sends a location request (Location Request) to the home location register to request the current location information of the user. Step 402: The home location register determines that the user belongs to the single-number dual-network single-standby user, and the location information of the user CDMA network does not exist, and the location information of the user WCDMA network exists, and the response of the home location register to the CDMA network mobile switching center returns the location request. , carry the WCDMA network over the network number. Step 4: 403: After the CDMA network mobile switching center has obtained the network number, ^! The route is connected to the WCDMA network gateway mobile switching center GMSC corresponding to the network number through the initial address message (IAM) standard signaling. Step 404: After receiving the call signaling request, the gateway mobile switching center starts the network transfer process, and initiates a routing query request to the home location register again. The signaling uses the WCDMA network terminal call routing request to send routing information. SRI) Step 405: The home location register finds that the location information of the user WCDMA network exists, and initiates a Get Roaming Number request (PRN) to the mobile switching center of the WCDMA network currently registered by the user. Step 406: WCDMA network After receiving the PRN, the mobile switching center finds that the user is reachable, and returns an available roaming number to the home location register. Step 407: The home location register fills the obtained roaming number into the SRI response and returns to the gateway mobile switching center. Step 408: The gateway mobile switching center performs the call connection by using the roaming number as the routing address, and transmits the call signaling to the mobile switching center currently registered by the user to establish a call process. The communication process ends. FIG. 5 is an embodiment of the present invention. International gateway to provide transnational Application of a schematic network deployment travel As shown in FIG. 5, the practical application of providing international gateways for international gateways is given in accordance with the method of the present invention. For some small operators, they only own and govern a network of standards, but they can issue dual-mode cards, which provide users of the network with roaming services in different network types of countries or other carriers in the country. Network coverage, the purpose of combining different standards networks. In this embodiment, the single-number dual-network single-standby service is implemented, and only the home location register supporting the dual-network convergence and the converged short message gateway need to be deployed, and the mobile switching center devices in the network need not be upgraded, and the fusion switching center device does not need to be integrated. Network devices added or? Make an upgrade. In this embodiment, the registration and the called process when the user roams in the visited place of the different network type are shown in FIG. 3 and FIG. 4. In this embodiment, by adding a subscription of two or more networks to the user in the home location register network element, when the user is called or the terminal short message is routed, a specific routing address is returned, so that the switching center will signal A gateway node that routes to another network. The specific address is called a network number, and is generally composed of a gateway switching center address prefix and a user number. The gateway switching center address prefix is a special code used to identify the gateway switching center, which is determined by the operator when the network is deployed. The method for establishing a mobile communication process in this embodiment provides a single-number dual-network single-standby service function, where, in the embodiment of the present invention:

1. The home location register network element stores the subscription information of the two networks of the user. The user has the physical number of the two networks and the logical number shared by the two networks (ie, the mobile phone number of the user).

2. The subscription change operation performed by the user of the home location register network element, such as forward registration, is valid for both network subscription information.

3. After receiving the registration request of the user terminal, the home location register network element records the location information of the network to which the current user belongs to the database, and initiates a delete location information request to the mobile switching center network element of another network that was originally registered.

4. After the home location register network element receives the terminal call signaling request, if the current network of the user is not the network to which the signaling initiator mobile switching center belongs, the home location register returns the network number of the current network of the user to the switching center.

5. After the home location register network element receives the signaling request of the terminal short message routing, if the current network of the user is not the network to which the signaling initiator switching center belongs, the home location register returns to the switching center the network of the current network of the user. number. Further, when the home location register network element finds that the user voice forwarding service is activated during the terminal call processing, the forward forwarding service type distinguishes the processing: if the conditional forward is forwarded, the forward rotation occurs immediately, and the transition does not occur. Another network performs subsequent processing; if it is unreachable, it determines whether the user is not registered in both networks. If no registration occurs, forwarding occurs. If the user has location information on at least one type of network, no forwarding occurs. . From the above description, it can be seen that the present invention achieves the following technical effects: The present invention implements the function of single-number dual-network single-standby service, especially for voice call and short message service. Through the invention, the user can realize seamless roaming across the network and across operators by using the dual-mode terminal, which can improve the network quality and further reduce the operator cost. In addition, operators can also apply this function to provide users with a variety of flexible network services and business services. For example, an operator only has one type of network, but can still issue a dual-mode card to provide roaming services to mobile users in countries with different network types. At this time, only the converged home location register and the converged SMS gateway need to be deployed. The invention realizes the function of the single-number dual-network single-standby service, and does not affect the use of various characteristic services signed by the user, such as a ring back tone and an intelligent service. The invention realizes the function of the single-number dual-network single-standby service, and can be easily deployed in the existing commercial network, and the upgrade is simple, and only the home location register and the short-message gateway have the fusion requirement, and the mobile switching center is not required. The signaling process conforms to the standards organization protocols and is well compatible with existing systems. In addition, the present invention has the advantages of simple implementation and modification of existing equipment. Apparatus Embodiments In accordance with an embodiment of the present invention, a home location register is provided. 6 is a schematic diagram of a home location register in accordance with an embodiment of the present invention. As shown in FIG. 6, the home location register includes: a receiving module 601; and a sending module 602. The receiving module 601 is configured to receive a request message of the first network mobile switching center, where the request message is used to request location information of the user, and the sending module 602 is configured to return a response message to the first network mobile switching center, where the response message is carried. There is a second network over the network number. Preferably, the home location register further includes: a first determining module 603 and a second determining module 604; The third determining module 605. The first determining module 603 is configured to determine whether there is location information of the first network of the user. The second determining module 604 is configured to determine whether there is location information of the second network of the user. The third determining module 605 is configured to determine whether the user belongs to the single-number dual-network single-standby user. Preferably, the home location register further includes: a processing module 607.

The processing module 607 is configured to delete the first network location information registered by the user, add the second network location information registered by the user, and send a location deletion request to the first network mobile switching center, where the location deletion request is used to request to delete User's location information. The embodiment of the invention further provides a system for establishing a mobile communication process, the system comprising: a first network mobile switching center and a home location register. The first network mobile switching center sends a request message, where the request message is used to request location information of the user; the home location register receives the request message, and returns a response message to the first network mobile switching center, where the response message is The second network over-the-network number is carried to enable the first network mobile switching center to establish communication with the second network mobile switching center by using a response message. Preferably, the system further comprises: a gateway mobile switching center. The gateway mobile switching center receives the second network over-the-network number, and performs the network transfer according to the second network over-the-network number, and sends a route query request message to the home location register. It should be noted that the steps shown in the flowchart of the accompanying drawings may be performed in a computer system such as a set of computer executable instructions, and, although the logical order is shown in the flowchart, in some cases, The steps shown or described may be performed in an order different than that herein. Obviously, those skilled in the art should understand that the above modules or steps of the present invention can be implemented by a general-purpose computing device, which can be concentrated on a single computing device or distributed over a network composed of multiple computing devices. Alternatively, they may be implemented by program code executable by the computing device, such that they may be stored in the storage device by the computing device, or they may be separately fabricated into individual integrated circuit modules, or they may be Multiple modules or steps are made into a single integrated circuit module. Thus, the invention is not limited to any specific combination of hardware and software. The above is only the preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes can be made to the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the scope of the present invention are intended to be included within the scope of the present invention.

Claims

Claim

A method for establishing a mobile communication process, comprising: a home location register receiving a request message of a first network mobile switching center, wherein the request message is used to request location information of a user;

The home location register returns a response message to the first network mobile switching center, where the response message carries a second network network number;

The first network mobile switching center establishes communication with the second network mobile switching center through the response message.

2. The method according to claim 1, wherein after the home location register receives the request message of the first network mobile switching center, the method further comprises: determining, by the home location register, that the non-existence exists Location information of the first network of the user and location information of the second network of the user; the home location register determines that the user belongs to the single-number dual-network single-standby user.

The method according to claim 1, wherein the second network over-the-network number includes a gateway mobile switching center address;

The process of establishing communication with the second network mobile switching center by using the response message includes: establishing, by the first network mobile switching center, a connection with a gateway mobile switching center of the second network mobile switching center by using the gateway switching center address;

And connecting to the second network mobile switching center by the gateway mobile switching center.

4. The method according to claim 3, wherein the process of connecting to the second network mobile switching center by the gateway mobile switching center comprises:

The gateway mobile switching center sends a routing query request to the home location register; the home location register responds to the route query request, obtains a roaming number through the second network mobile switching center, and sends the roaming number to the location The gateway mobile switching center in the gateway mobile switching uses the roaming number to connect signaling from the first network mobile switching center to the second network mobile switching center.

The method according to claim 4, wherein the route query request message is a terminating route request message of the second network.

The method according to any one of claims 1 to 4, wherein, before the home location register receives the request message of the first network mobile switching center, the method further includes:

The second network mobile switching center sends a location update request to the home location register, where the location update request is used to request to update location information of the user; the home location register deletes the first network location registered by the user The information, the second network location information that is registered by the user is added, and the location deletion request is sent to the first network mobile switching center, where the location deletion request is used to request to delete the location information of the user;

The first network mobile switching center receives the location deletion request, and clears user location information saved by the user.

The method according to claim 6, wherein, before the home location register deletes the first network location information registered by the user, the method further includes:

The home location register determines that the user belongs to the single-number dual-network single-standby user; the home location register determines that there is first network location information registered by the user.

8. A home location register, characterized by comprising:

a receiving module, configured to receive a request message of the first network mobile switching center, where the request message is used to request location information of the user;

And a sending module, configured to return a response message to the first network mobile switching center, where the response message carries a second network over-the-network number.

9. The home location register of claim 8, wherein the home location register further comprises:

The first judging module is configured to determine whether there is location information of the first network of the user; and the second judging module is configured to determine whether there is location information of the second network of the user.

10. The home location register of claim 8, wherein the home location register further comprises:

The third determining module is configured to determine whether the user belongs to the single-number dual-network single-standby user.

The home location register according to any one of claims 8 to 10, wherein the home location register further comprises:

a processing module, configured to delete first network location information registered by the user, add second network location information registered by the user, and send a location deletion request to the first network mobile switching center, where the location deletion request is used for the request Delete the user's location information.

12. A system for establishing a mobile communication process, comprising:

a first network mobile switching center, configured to send a request message, where the request message is used to request location information of the user;

a home location register, configured to receive the request message, and return a response message to the first network mobile switching center, where the response message carries a second network network number to enable the first network mobile exchange The center establishes communication with the second network mobile switching center through the response message.

The system according to claim 12, wherein the system further comprises:

And a gateway mobile switching center, configured to receive the second network over-the-network number, and perform network switching according to the second network over-the-network number, and send a route query request message to the home location register.