CN101730068B - Method and system for establishing mobile communication process, home location register - Google Patents

Abstract

The invention discloses a method and a system for establishing mobile communication process and a home location register. The method comprises the following steps: the home location register receives the request information of a first network moving and exchanging center, wherein the request information is used for requiring the user position information; the home location register returns response information to the first network moving and exchanging center, wherein the response information carries a second network passing number; and the first network moving and exchanging center establishes communication with a second network moving and exchanging center through the response information. Due to the adoption of the method and the system for establishing the mobile communication process and the home location register, the communication across the network and the operator can be realized easily and conveniently.

Description

Method and system for establishing mobile communication process, home location register

technical field

The present invention relates to the communication field, in particular to a method and system for establishing a mobile communication process, and a home location register.

Background technique

At present, with the development of mobile communication networks, the trend of network integration is gradually obvious, and the integration of fixed network, mobile network and broadband network has become a trend. Among them, in the mobile network, the broadband codes corresponding to the two standard camps of the 3rd Generation Partnership Project (3rd Generation Partnership Project, referred to as 3GPP) and the 3rd Generation Partnership Project 2 (3rd Generation Partnership Project2, referred to as 3GPP2) The integration of the Wideband Code Division Multiple Access (WCDMA for short) network and the Code Division Multiple Access (CDMA for short) network has also been carried out in full swing. How to improve user experience and how to make better use of the existing network to provide users with better services, these have given rise to the market demand for operators to develop converged services.

Single number dual network single standby means that a mobile communication user has a mobile phone number and can register and roam on two networks, but is only allowed to register and standby on one network at a time. Usually, the two networks are networks of different standards, such as a WCDMA network and a CDMA network. The user terminal can automatically select the registered network according to the strength of the network signal, which is beneficial to save the investment of the operator, improve the user experience, and promote the integration of the network and the service. The number portability service widely developed in the world is also a kind of network integration, which can realize the user to change the network without changing the number. network contract. Moreover, number portability requires that the coverage of the two networks must overlap, otherwise users cannot change networks according to their own wishes.

At present, there are also some technologies that use methods such as forwarding and protocol conversion to realize intercommunication between the two networks, such as free travel between networks. Most of them directly route the calls from different networks to the exchange registered by the user, so that some special services of the user, such as ring back tones and intelligent services, cannot be triggered, which affects the user experience.

Aiming at the problem that related technologies are difficult to realize the single-number dual-network single-standby service, especially the integration of voice and short message services, no effective solution has been proposed yet.

Contents of the invention

The present invention is proposed for the problem that it is difficult to realize single-number dual-network single-standby service, especially the integration of voice and short message services. For this reason, the main purpose of the present invention is to provide a method and system for establishing a mobile communication process, and a home location register , to address at least one of the above problems.

In order to achieve the above purpose, according to one aspect of the present invention, a method for establishing a mobile communication process is provided.

The method for establishing a mobile communication process according to the present invention includes: the home location register receives a request message from the mobile switching center of the first network, wherein the request message is used to request the location information of the user; the home location register returns a response to the mobile switching center of the first network message, wherein, the response message carries the network connection number of the second network; the mobile switching center of the first network establishes communication with the mobile switching center of the second network through the response message.

Preferably, before the home location register receives the request message from the mobile switching center of the first network, the method further includes: the home location register determines that there is no location information of the user's first network and there is location information of the user's second network; the home location The register determines that the user belongs to the single-number dual-network single-standby user.

Preferably, after the home location register returns a response message to the mobile switching center of the first network, the method further includes: the mobile switching center of the first network connects the route to the gateway mobile switching center corresponding to the network number of the second network; The switching center receives the network number of the second network, performs network transfer according to the network number of the second network, and sends a route query request message to the home location register.

Preferably, the route query request message is a terminal call route request message of the second network.

Preferably, before the home location register receives the request message from the mobile switching center of the first network, the method further includes: the mobile switching center of the second network sends a location update request to the home location register, wherein the location update request is used to request the user The location information of the user 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 mobile switching center of the first network, wherein the location deletion request is used to request Delete 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 a single-number dual-network single-waiting user; the home location register determines that there is the first network location information registered by the user .

In order to achieve the above purpose, 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 from the mobile switching center of the first network, wherein the request message is used to request the user's location information; a sending module, configured to return the mobile switching center to the first network A response message, wherein the response message carries the second network passing number.

Preferably, the home location register further includes: a first judging module for judging whether there is location information of the user's first network; a second judging module for judging whether there is location information of the user's second network.

Preferably, the home location register further includes: a third judging module, configured to judge whether the user belongs to a single-number dual-network single-standby user.

Preferably, the home location register further includes: a processing module, 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 mobile switching center of the first network, wherein, A location deletion request is used to request deletion of a user's location information.

In order to achieve the above purpose, according to another aspect of the present invention, a system for establishing a mobile communication procedure is provided.

The system for establishing a mobile communication process according to the present invention includes: the mobile switching center of the first network, which sends a request message, wherein the request message is used to request the location information of the user; The center returns a response message, wherein the response message carries the network connection number of the second network so that the mobile switching center of the first network can establish communication with the mobile switching center of the second network through the response message.

Preferably, the system further includes: a gateway mobile switching center, receiving the second network connection number, performing network transfer according to the second network connection number, and sending a route query request message to the home location register.

Through the present invention, the home location register is used to receive the request message from the mobile switching center of the first network, wherein the request message is used to request the location information of the user; the home location register returns a response message to the mobile switching center of the first network, wherein, in the response message It carries the network number of the second network; the mobile switching center of the first network establishes communication with the mobile switching center of the second network through the response message, which solves the difficulty of realizing single-number dual-network single-standby services in related technologies, especially the integration of voice and short message services problems, and then achieve the effect of simply and conveniently realizing cross-network and cross-operator communication.

Description of drawings

The accompanying drawings described here are used to provide a further understanding of the present invention and constitute a part of the application. The schematic embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations to the present invention. In the attached picture:

FIG. 1 is a schematic diagram of a network element network structure of a mobile communication system according to an embodiment of the present invention;

2 is a schematic flowchart of a method for establishing a mobile communication process according to an embodiment of the present invention;

FIG. 3 is 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 flow chart of an end 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;

Fig. 5 is a schematic diagram of network deployment of an international gateway office providing transnational roaming applications according to an embodiment of the present invention;

Fig. 6 is a schematic diagram of a home location register according to an embodiment of the present invention.

Detailed ways

Hereinafter, the present invention will be described in detail with reference to the drawings and examples. It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other.

The implementation of the technical solution will be further described in detail below.

method embodiment

According to an embodiment of the present invention, a method for establishing a mobile communication process is provided.

Fig. 2 is a schematic flowchart of a method for establishing a mobile communication process according to an embodiment of the present invention.

As shown in Figure 2, the method includes the following steps S202 to S206:

Step S202, the HLR receives a request message from the mobile switching center of the first network, wherein the request message is used to request the location information of the user;

Step S204, the home location register returns a response message to the mobile switching center of the first network, wherein the response message carries the network number of the second network;

In step S206, the mobile switching center of the first network establishes communication with the mobile switching center of the second network through a response message.

In this embodiment, after receiving the network mobile switching center, the home location register returns the second network pass-through number to the network mobile switching center, which solves the difficulty of realizing single-number dual-network single-standby services in related technologies, especially voice and short message services. The problem of message service integration has achieved the effect of simply and conveniently realizing cross-network and cross-operator communication.

The implementation process of the embodiment of the present invention will be described in detail below with reference to examples.

The following embodiments take WCDMA network and CDMA network in mobile communication as examples, but are not limited to WCDMA network and CDMA network, and the method provided by the present invention can be applied to realize the function of single number, double network and single standby.

On the protocol standard interface between the home location register (Home Location Register, HLR for short) and the mobile switching center (Mobile Services Switching Center, MSC for short), the upper layer transmission protocol is the Mobility Application Part (MAP for short). )protocol. Gateway Mobile-services Switching Center (GMSC for short) is usually located at the tandem office of the backbone network or at the boundary where it interacts with other networks.

Fig. 1 is a schematic diagram of network element networking structure of a mobile communication system according to an embodiment of the present invention.

As shown in Figure 1, the mobile switching centers S11 and S12 are switching network elements located in different geographical locations of the visited place, the gateway mobile switching center S13 is a switching network element located at the border of the visited place and acts as a gateway connecting different networks, and the gateway mobile switching center GMSC S14 is a switching network element located at the border of the home area and acts as a gateway connecting different networks. The home location register (Home Location Register, referred to as HLR) S15 is the home network element, which stores various subscription information and current location information of the home user. The mobile switching center MSC S16 is a switching network element located at the home location.

Among them, MSC S11, MSC S12, and GMSC S13 belong to one kind of mobile network, and GMSC S14 and MSC S16 belong to another kind of mobile network. Subscription information and location information in the network.

The establishment of the integrated HLR makes the user unaware of the existence of the two networks, because the user's subscription operation is aimed at the two networks at the same time, that is, the service information has nothing to do with the network type, and the user does not need to change a service in the business halls of the two networks separately. Change once.

FIG. 3 is a flowchart of registration messages between the HLR and the MSC in the mobile communication system according to an embodiment of the present invention.

As shown in Figure 3, the method includes the following steps:

Step S301: The mobile switching center of the WCDMA network 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 a single-number dual-network single-standby user, and the location information of the CDMA network previously registered by the user exists, then deletes the location information of the CDMA network previously registered by the user, and sends the location to the CDMA network mobile switching center Delete request (Registration Cancellation).

Step S303: The HLR continues the subsequent location update process, and returns a registration success response to the WCDMA MSC.

Step S304: After receiving the location deletion request, the CDMA network mobile switching center clears the user location information stored inside, and returns an acknowledgment response to the HLR. This registration process is over.

Fig. 4 is a flow chart of the final call routing message between the HLR and the MSC in the mobile communication system according to the embodiment of the present invention.

As shown in Figure 4, the process steps of the final call routing message are as follows:

Step 401: The mobile switching center of the CDMA network sends a location request (Location Request) to the home location register, requesting the user's current location information.

Step 402: the home location register determines that the user belongs to a single-number dual-network single-standby user, and the location information of the user's CDMA network does not exist, and the location information of the user's WCDMA network exists, then the home location register returns a response to the location request to the CDMA network mobile switching center , carrying the WCDMA network pass number.

Step 403: After the CDMA network mobile switching center obtains 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 (Initial Address Message, referred to as 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, and the signaling uses the final call routing request of the WCDMA network to send routing information (Send Routing Information, referred to as SRI for short) ).

Step 405: The HLR finds that the location information of the user's WCDMA network exists, and initiates a request for obtaining a roaming number (Provide Roaming Number, PRN for short) to the mobile switching center of the WCDMA network currently registered by the user.

Step 406: After receiving the PRN, the mobile switching center of the WCDMA network finds that the user is reachable, and returns an available roaming number to the HLR.

Step 407: The HLR fills the obtained roaming number into the SRI response, and returns it to the gateway mobile switching center.

Step 408: The gateway mobile switching center uses the roaming number as the routing address to connect the call, transmits the call signaling to the mobile switching center currently registered by the user, and establishes the call process. This communication process is over.

FIG. 5 is a schematic diagram of network deployment for international roaming applications provided by an international gateway office according to an embodiment of the present invention.

As shown in Fig. 5, according to the method of the present invention, a practical application of providing international roaming for the international gateway is provided. For some small operators, they only own and govern one type of network, but they can issue dual-mode cards to provide users of this network with roaming services in surrounding countries with different network types or in other operator areas in the country, so as to achieve expansion Network coverage, the purpose of integrating networks of different standards.

In this embodiment, to carry out the single-number dual-network single-standby service, it is only necessary to deploy a home location register and a converged SMS gateway that support dual-network integration, without upgrading each mobile switching center device in the network, and without being integrated Network equipment is newly added or upgraded.

In this embodiment, the flow of registration and being called when a user roams in a visited place of different network types is shown in FIG. 3 and FIG. 4 .

In this embodiment, by adding two or more network subscriptions for the user in the home location register network element, when the user is called or ends the short message route, a specific routing address is returned, so that the switching center will send the signaling A gateway node for routing to another network. The specific address is called the network number, which is generally composed of the address prefix of the gateway switching center and the user number. The address prefix of the gateway switching center is a special code used to identify the gateway switching center, which is determined by the operator during network deployment.

The establishment method of the mobile communication process in this embodiment provides a single-number dual-network single-standby service function, wherein, in the embodiment of the present invention:

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

2. The subscription change operation performed by the user of the HLR network element, such as forwarding registration, takes effect on the subscription information of the two networks at the same time.

3. After receiving the registration request from 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 request to delete the location information to the previously registered mobile switching center network element of another network.

4. After the HLR network element receives the final call signaling request, if the network where the user is currently located is not the network to which the mobile switching center of the signaling originator belongs, the HLR returns the network number of the network where the user is currently located to the switching center.

5. After the home location register network element receives the signaling request for the routing of the final call short message, if the network where the user is currently located is not the network to which the switching center of the signaling originator belongs, the home location register returns to the switching center the network transfer information of the network where the user is currently located. Number.

Further, when the home location register network element finds that the voice forwarding service of the user is activated during the call termination process, it differentiates the processing according to the forwarding service type: if it is unconditional forwarding, the forwarding will occur immediately and will not transition to Another network performs follow-up processing; if forwarding is unreachable, it is judged whether the user is not registered on both networks, and if no registration occurs, forwarding occurs, and if the user has location information on at least one network, forwarding does not occur .

From the above description, it can be seen that the present invention achieves the following technical effects:

The invention realizes the function of single-number dual-network single-standby service, especially for voice call and short message service. Through the present invention, a user can realize seamless roaming across networks and operators by using a dual-mode terminal, which can improve network quality and further reduce operator costs. In addition, operators can also apply this function to provide users with various flexible network services and business services. For example, an operator has only one type of network, but can still issue dual-mode cards to provide roaming services to mobile users in surrounding countries with different network types. At this time, it only needs to deploy integrated home location registers and integrated SMS gateways.

The present invention realizes the function of single-number dual-network single-standby service without affecting the use of various characteristic services signed by users, such as ring tones and intelligent services.

The invention realizes the function of single-number dual-network single-standby service, can be easily deployed in the existing commercial network, and is easy to upgrade, and only requires the integration of the home location register and the short message gateway, and has no requirement for the mobile switching center. The signaling process conforms to the protocols of various standard organizations and is well compatible with existing systems.

In addition, the present invention has the advantages of simple implementation and little modification to existing equipment.

Device embodiment

According to an embodiment of the present invention, a home location register is provided.

Fig. 6 is a schematic diagram of a home location register according to 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 .

Wherein, the receiving module 601 is used to receive a request message from the mobile switching center of the first network, and the request message is used to request the location information of the user; the sending module 602 is used to return a response message to the mobile switching center of the first network, and the response message carries There is a second network number.

Preferably, the home location register further includes: a first judging module 603 and a second judging module 604 ; and a third judging module 605 .

Wherein, the first judging module 603 is configured to judge whether there is location information of the user's first network. The second judging module 604 is configured to judge whether there is location information of the user's second network. The third judging module 605 is configured to judge whether the user belongs to a single-number dual-network single-standby user.

Preferably, the above-mentioned home location register further includes: a processing module 607 .

Wherein, the processing module 607 is used 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 mobile switching center of the first network, wherein the location deletion request is used to request deletion User's location information.

The embodiment of the present invention also provides a system for establishing a mobile communication process. The system includes: a first network mobile switching center and a home location register.

Wherein, the mobile switching center of the first network sends a request message, wherein the request message is used to request the location information of the user; the home location register receives the request message, and returns a response message to the mobile switching center of the first network, wherein, in the response message Carrying the network connection number of the second network enables the mobile switching center of the first network to establish communication with the mobile switching center of the second network through a response message.

Preferably, the system further includes: a gateway mobile switching center. Wherein, the gateway mobile switching center receives the network number of the second network, performs network transfer according to the network number of the second network, and sends a route query request message to the home location register.

It should be noted that the steps shown in the flowcharts of the accompanying drawings may be performed in a computer system, such as a set of computer-executable instructions, and that although a logical order is shown in the flowcharts, in some cases, The steps shown or described may be performed in an order different than here.

Obviously, those skilled in the art should understand that each module or each step of the above-mentioned present invention can be realized by a general-purpose computing device, and they can be concentrated on a single computing device, or distributed in a network formed by multiple computing devices Optionally, they can be implemented with program codes executable by computing devices, thus, they can be stored in storage devices and executed by computing devices, or they can be made into individual integrated circuit modules, or they can be integrated into Multiple modules or steps are fabricated into a single integrated circuit module to realize. As such, the present invention is not limited to any specific combination of hardware and software.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and changes. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

Claims (10)

1. A method for establishing a mobile communication process, comprising: The home location register receives a request message from the mobile switching center of the first network, wherein the request message is used to request the location information of the 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 number of the second network; The mobile switching center of the first network establishes communication with the mobile switching center of the second network through the response message; Wherein, before the home location register receives the request message from the mobile switching center of the first network, the method further includes: The mobile switching center of the second network sends a location update request to the home location register, wherein the location update request is used to request to update the location information of the user; The home location register deletes the first network location information registered by the user, adds the second network location information registered by the user, and sends a location deletion request to the first network mobile switching center, wherein the location deletion request is used to request Delete the user's location information; The mobile switching center of the first network receives the location deletion request, and clears the user location information saved by the user. 2. The method according to claim 1, characterized in that, before the HLR receives the request message of the first network mobile switching center, the method further comprises: The home location register determines that there is no location information of the user's first network and there is location information of the user's second network; The home location register determines that the user belongs to a single-number dual-network single-standby user. 3. The method according to claim 1, characterized in that, after the HLR returns a response message to the first network mobile switching center, the method further comprises: The mobile switching center of the first network connects the route to the gateway mobile switching center corresponding to the network number of the second network; The gateway mobile switching center receives the second network network number, performs network transfer according to the second network network number, and sends a route query request message to the home location register. 4. The method according to claim 3, wherein the routing query request message is a terminal call routing request message of the second network. 5. The method according to claim 1, wherein before the HLR deletes the first network location information registered by the user, the method further comprises: The home location register determines that the user belongs to a single-number dual-network single-standby user; The home location register determines that there is first network location information registered by the user. 6. A home location register, characterized in that it comprises: A receiving module, configured to receive a request message from a mobile switching center of the first network, wherein the request message is used to request location information of a user; A sending module, configured to return a response message to the mobile switching center of the first network, wherein the response message carries a network connection number of the second network; A processing module, configured to delete the first network location information registered by the user, add the second network location information registered by the user, and move the exchange to the first network The center sends a location deletion request, wherein the location deletion request is used to request deletion of the user's location information. 7. The home location register according to claim 6, wherein the home location register further comprises: The first judging module is used to judge whether there is location information of the user's first network; The second judging module is used to judge whether there is location information of the user's second network. 8. The home location register according to claim 6, wherein the home location register further comprises: The third judging module is used for judging whether the user belongs to a single-number dual-network single-standby user. 9. A system for establishing a mobile communication process, comprising: The first network mobile switching center sends a request message, wherein the request message is used to request the location information of the user; Home location register, including: a receiving module, configured to receive the request message from the mobile switching center of the first network; A sending module, configured to return a response message to the mobile switching center of the first network, wherein the response message carries the network number of the second network so that the mobile switching center of the first network can communicate with the second network through the response message. The second network mobile switching center establishes communication; A processing module, 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 mobile switching center of the first network, wherein the location deletion request is used to request Delete the user's location information. 10. The system according to claim 9, characterized in that, the system further comprises: a gateway mobile switching center, receiving the second network connection number, and performing network transfer according to the second network connection number, And sending a route query request message to the HLR.

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