WO2007053979A1

WO2007053979A1 - Gateway mobile location center and method therefor

Info

Publication number: WO2007053979A1
Application number: PCT/CN2005/001905
Authority: WO
Inventors: Liang Shan
Original assignee: Zte Corporation
Priority date: 2005-11-11
Filing date: 2005-11-11
Publication date: 2007-05-18
Also published as: CN101305631B; CN101305631A

Abstract

A Gateway mobile location center includes access module, control module and service layer module which connect in turn, wherein service layer module comprises multiple signaling gateway modules corresponding to different mobile networks; control module routes location request to one or more of the multiple signaling gateway modules according to mobile network type of located user; location results returned by the multiple signaling gateway modules to control module have a uniform format. The present invention can accommodate a variety of different interfaces of mobile communication networks, support the function of locating the users in different networks at the same time, support smoothing evolution of network system protocol version; meanwhile, accommodate different location architectures, and support both location under control plane mode and location under user plane mode. The present invention can reduce system investment, facilitate system maintenance and reduce operation cost.

Description

Gateway mobile positioning center and implementation method thereof

The present invention relates to a gateway mobile positioning center in a mobile data service, and more particularly to an implementation scheme of a positioning center capable of simultaneously supporting multiple mobile communication networks. Background technique

The location service function is one of the most diverse data services provided by modern mobile communication networks to reflect user mobility. Typically, this service function will be implemented as a comprehensive service, and the Gateway Mobile Location Center (GMLC) will provide basic business capabilities for a variety of attractive integrated services, ie the basic location of the user. Information (latitude and longitude, elevation, speed). As the name suggests, the Gateway Mobile Location Center is a network element that acts as a gateway, and the Construction Gateway Mobile Location Center has become a pre-requisite for all kinds of integrated services using location information. FIG. 1 is a schematic diagram showing an architecture of a location service provided by the entire mobile network. As shown in FIG. 1, the gateway mobile location center is connected to a mobile network and a location service client (LCS Client, LoCation Service Client).

From a service provider's perspective, it is desirable to be able to serve the largest number of users in a convenient manner, regardless of which mobile network terminals are used by these users, such as GSM Global System for mobile Communication, Global System for Mobile Communications ), CDMA (Code Division Multiple Access), PHS (Personal Handphone System), WCDMA (Wide Band CDMA, Wideband Code Division Multiple Access:).

From the perspective of network operators, it is hoped to reduce equipment investment, reduce the cost of system operation management, reduce the degree of business impact in the process of system upgrade and evolution, and provide users with more satisfactory services.

These requirements are widespread and are also reflected in the international standards and specifications specified for the positioning business. For the positioning of the service provider and various positioning applications, or the abstracted client, there is a unified Le specification of the XML (eXtensible Marked Language) format specified by the international organization, as long as the gateway The mobile positioning center and the positioning client follow this protocol standard to meet the needs of the aforementioned service providers.

For network operators, although various mobile networks can provide user location information through signaling, such as GSM, WCDMA, PHS networks, all can pass MAP (Mobile Application Part, mobile application part) signaling to obtain the current location information of the user. However, the format of these MAP signaling is different, and the definition of these signaling formats changes with the change of the mobile network protocol specification version, that is, as a gateway mobile positioning center and a different mobile network. These interfaces between meta-elements are also different. It is more important to note that since the mobile operator's equipment investment is gradually carried out, that is to say, in the same mobile network, devices that follow different specification versions will exist at the same time. At the same time, the network operator not only needs to support the positioning of the control plane mode, but also needs to support the positioning of the user plane at the same time to support the future development direction of the technology, and hopes that the support for the two positioning methods is integrated and seamless. It is transparent to the service provider.

From this perspective, it seems appropriate to implement the function of the positioning gateway in a loosely coupled system structure. That is to say, the gateway positioning center is separately implemented for each network structure, and the gateway positioning device is used for routing control, or the positioning client is connected with multiple gateway positioning centers to control the flow of the service.

However, we must consider that after the differentiation of the signaling interface is eliminated in the entire positioning service process, the similarity of different network structures is many. These processes include similar authentication, location, record location results, billing, and bill generation. The use of loosely coupled structures requires more devices to be introduced into the system, resulting in more functional duplication and difficulty in implementing optimization measures in the system. The result is a reduction in the efficiency of the entire system, an increase in investment costs, and operations. Management is more difficult. Summary of the invention

The object of the present invention is to provide a gateway mobile positioning center and an implementation method thereof, which use a tightly coupled implementation manner to adapt different mobile communication network signaling system differences by using multiple signaling gateways, The set of gateway mobile positioning center devices supports different positioning architectures and positioning of users in different networks.

In order to achieve the above object, the present invention provides a gateway mobile positioning center, which includes an access module, a control module, and a service layer module, which are sequentially connected, wherein the service layer module includes multiple positioning services corresponding to different mobile networks. Signaling gateway module;

The control module is configured to route the location request to one or more of the plurality of signaling gateway modules according to the type of mobile network of the located user;

The positioning results returned by the plurality of signaling gateway modules to the control module have a uniform format. The above-mentioned gateway mobile positioning center, between the access module, the control module and the service layer module Triggering for mutual control and operating on the same context data structure encapsulated in the event, the event having a globally unique event name or event number, the control module routing the location request to the One or more of the plurality of signaling gateway modules perform positioning processing.

At the same time, the service layer module further includes a user plane processing module, configured to implement positioning of the mobile phone supporting the user plane positioning function, and the control module uses the event to route the positioning request to the user plane processing module for positioning processing.

Meanwhile, when one of the plurality of signaling gateway modules includes a plurality of evolved versions, the signaling gateway module includes a plurality of signaling gateway sub-modules corresponding to different evolved versions of the same mobile network, and the control module is located according to the The user's mobile network type, using an event to route the location request to one of the signaling gateway sub-modules for positioning processing, and corresponding to multiple signaling gateway sub-modules of different evolved versions of the same mobile network using the same event and control Communication between modules.

At the same time, the service layer module further includes a roaming processing module, configured to implement positioning when the mobile phone is roamed, and the signaling gateway module is further configured to: after determining the roaming status of the located mobile phone, send the positioning request to the The roaming processing module performs positioning processing.

In order to achieve the above objective, the present invention further provides a method for implementing a gateway mobile positioning center, which includes the following steps:

Setting an access layer module, which is responsible for processing the Le interface;

Setting a control module for controlling the entire positioning business process;

Setting a plurality of signaling gateway modules for implementing positioning services corresponding to different mobile networks; the access module, the control module, and the signaling gateway module mutually controlling by event triggering, for the same encapsulation in the event The context data structure operates, the event having a globally unique event name or event number, the control module routing the location request to one of the plurality of signaling gateway modules or based on the mobile network type of the located user Multiple positioning processing;

The positioning results returned by the plurality of signaling gateway modules to the control module have a unified format. The implementation method of the gateway mobile positioning center, wherein the method further includes the following steps:

A user plane processing module is configured to implement positioning of the mobile phone supporting the user plane positioning function, and the control module uses the event to route the positioning request to the user plane processing module for positioning processing.

The implementation method of the gateway mobile positioning center, wherein the method further includes the following steps:

Setting a roaming processing module corresponding to the signaling gateway module, configured to implement positioning when the located mobile phone roams, and the signaling gateway module determines a roaming status of the located mobile phone to locate a request And sending, by the control module, the roaming processing module to perform positioning processing.

The invention can adapt to the interfaces of various mobile communication networks, supports the functions of simultaneously locating users in different networks, supports the smooth evolution of the protocol version of the network system, and simultaneously adapts to different positioning architectures, and supports the control plane mode. The positioning below also supports positioning in the user plane mode. At the same time, it can reduce the investment of the system, facilitate the maintenance of the system, and reduce the operating cost;

Since the present invention uses an asynchronous event-driven approach, it not only demonstrates the advantages of a tightly coupled system, but also maintains a loosely coupled connection between various parts of the system, and can also increase the throughput of the system;

The present invention facilitates the analysis and modeling of systems using an object-oriented approach. DRAWINGS

Figure 1 is an architectural diagram of the location service provided by the entire mobile network;

Figure 2 is the architecture of the gateway mobile positioning center;

Figure 3 shows the module structure of a GMLC supporting both GSM and WCDMA networks. detailed description

FIG. 1 is an architectural diagram of a location service provided by the entire mobile network. FIG. 1 shows, in a relatively rough manner, a network element entity in a mobile network and a location-related entity, which mainly emphasizes the location of the gateway mobile location center in the entire positioning architecture. Since different network elements in the mobile network and positioning-related network elements are simultaneously responsible for the important role in the mobile network, their external interfaces are relatively stable, and it is rare to modify the system structure and interface specifications for the needs of a certain service. Focus only on the interface between them and the gateway mobile location center.

As shown in FIG. 2, the gateway mobile positioning center of the present invention includes:

The access module 10 is connected to the LCS Client through a Le interface, and is responsible for processing the Le interface, including receiving a Le request and returning a Le response;

The control module 20 is connected to the access module 10 and is responsible for controlling the entire positioning service flow. The control module 20 communicates with the access module 10 through an event manner. The event includes a context object and uses a globally unique event name or event. The number is differentiated, and the control module determines which mobile network the located user belongs to according to the customized policy of the user, and uses different events to route the positioning request to the submodule of the different service layer module 30;

The service layer module 30 is connected to the control module 20, between the service layer module 30 and the control module 20 The service layer module can also be configured according to the configuration. The service layer module includes multiple sub-modules, such as an authentication module, a user plane processing module, a signaling gateway module, a roaming processing module, etc., and the service layer module 30 can be configured. Decide which submodules to use based on the needs of the system function.

among them:

The access module 10, the control module 20 and the service layer module 30 are separate scheduling units, and the operation thereof is not directly controlled by other modules, but the flow control is completed by an event triggering method, and the context data structure is wrapped in the event, and the context is State transition is triggered by an event, that is, each module's function is triggered by an event. The completed action is first a migration of the state of the context object representing the location request, and each module controls the flow of a request by sending an event;

The authentication module in the service layer module 30 is used for various types of authentication;

For multiple mobile networks (such as GSM network and WCDMA) and different evolved versions of the same mobile network, multiple signaling gateway modules are required for adaptation: different mobile networks correspond to different signaling gateway modules, and control Different modules communicate with each other through different events; different evolved versions of the same mobile network correspond to different signaling gateway modules, but different signaling gateway modules corresponding to different evolved versions of the same mobile network will not start at the same time, but they Communicate between the same event and control modules;

The roaming processing module implements a roaming function;

The user plane processing module is used to support the user plane while supporting the control plane positioning. You can optimize the entire positioning process.

The positioning results are uniformly represented by the intermediate format, and all modules operate on the same context structure uniformly: For different mobile networks and corresponding evolved versions, they are respectively adapted by different signaling gateway modules, and the signaling gateway modules are based on the network type. The difference between the control module and the control module uses different events to communicate, but all events are wrapped with the same context data structure, and a unified intermediate format is used in the context data structure to represent the positioning result;

For different mobile networks, the control module routes the location request to different signaling gateway modules according to a customer-customizable policy, for example, according to the number of the located user, or according to the capabilities of the user terminal or the network environment in which the user is located. Differentiate, the control module uses different events to route positioning requests for users in different networks, and the routing policy is customer customizable.

The implementation of the technical solution will be further described in detail below with reference to the accompanying drawings.

The method for implementing the gateway mobile positioning center of the present invention is characterized in that it comprises the following steps: The access layer module is configured to be responsible for processing the Le interface.

Setting a plurality of signaling gateway modules for implementing positioning services corresponding to different mobile networks; setting a user plane processing module, configured to implement positioning of a mobile phone supporting a user plane positioning function, wherein the control module uses an event to route the positioning request Performing a positioning process to the user plane processing module; setting a roaming processing module corresponding to the signaling gateway module, configured to implement positioning when the located mobile phone roams, and the signaling gateway module determines the location of the located mobile phone After the roaming state, the positioning request is sent to the roaming processing module by the control module for positioning processing;

An authentication module is configured to perform client authentication, service authentication, and privacy authentication on the client information, the location initiator, and the identifier of the located user, respectively;

The access module, the control module, and the service layer module signaling gateway module perform mutual control through event triggering, and are used to perform operations on encapsulating the same context data structure in the event, where the event has a globally unique event name or event. No. the control module routes the location request to one or more of the multiple signaling gateway modules according to the mobile network type of the located user, where the multiple signaling gateway modules return to the The positioning result of the control module has a uniform format. Figure 2 is an architectural diagram of the Gateway Mobile Location Center. Each module in the system is a separate scheduling unit. Their operation is not directly controlled by other modules, but the flow control is completed by event triggering. In the figure, the interface between the Lcs Client and the access layer module is a Le interface, and the access layer module and the control module communicate by using an event mode, and the event includes a context object, and the event is distinguished by using a globally unique event name or an event number. . The control module and the service layer module communicate directly using the event method. The service layer module can decide whether to start according to the configuration. Which service modules can be used depending on the needs of the system functions. In particular, for multiple mobile networks and different evolved versions of the same mobile network, multiple signaling gateway modules are required for adaptation. At the same time, the system implements the roaming function by configuring the user plane processing module and the roaming processing module, and supports the positioning of the user plane while supporting the control plane positioning, and can optimize the entire positioning process.

FIG. 3 is a block diagram of a module mobile positioning center supporting both GSM and WCDMA networks. This figure more clearly shows the configuration of the system during the simultaneous positioning of users in the GSM and WCDMA networks. The control module 20 determines which mobile network the located user belongs to according to the customized policy of the user, and uses different events to locate the request. Route to different signaling gateway service modules. The following is a discussion of the specific process of positioning achieved by this technical solution in five cases.

(1) User positioning in the GSM network under the control plane mode

As shown in FIG. 2, when the method for implementing the positioning of the gateway mobile positioning center of the present invention is implemented in the control plane mode for the user in the GSM network, the following steps are specifically included:

Step 101: Start a GSM signaling gateway service module when the system starts;

Step 102: The positioning client initiates a positioning request to the user in the GSM network through the Le interface to the gateway mobile positioning center, and the access module creates a context object for the positioning request, which includes all the information in the positioning request, and sends the information to the control module. Sending a location request event, the context request object includes the context object, and the received location request event is identified by a globally unique event number;

Step 103: After receiving the event (receiving the location request event), the control module determines, according to the event number, that a positioning request is received, and the creation of the authentication request event is sent to the authentication module, where the authentication request event includes the context object. The authentication request event is identified by a globally unique event number. Step 104: After receiving the event (creating the authentication request event), the authentication module determines, according to the event number, an authentication request event, and extracts the context object from the The client information and the location initiator and the identifier of the located user are respectively performed for client authentication, service authentication, privacy authentication, etc., if the authentication is passed, a positioning initiation event is sent to the control module, otherwise the authentication is sent. a failure event, and the authentication result is recorded in the context object;

Step 105: If the control module receives the authentication failure event, the control module sends a location process failure event to the access module, where the context object is included, and the access module completes the failure return of the Le interface, and the process ends;

Step 106: If the control module receives the location initiation event, the control module determines that the located user belongs to the GSM user according to the customized policy, and sends a GSM positioning request event to the GSM signaling gateway module, where the GSM positioning request event includes a context object.

Step 107: After receiving the request event (GSM positioning request event), the GSM signaling gateway module first sends an SRI (SEND-ROUTING-INFO-FOR-LCS) to the 2G-HLR (Home Location Register) according to the information in the context object. The message ₇ queries the user's visited place and sends the PSL (PROVIDE-SUBSCRIBER-LOCATION) to the 2G-MSC or 2G-SGSN according to the identity of the 2G-MSC (Mobile Switching Centre) or 2G-SGSN (Service GPRS Support Node) of the current visited place of the user. ) message, and from 2G-MSC or 2G-SGSN The result of the positioning is removed from the message, and is encapsulated into a unified intermediate format, that is, the format of the positioning result of the Le interface is stored in the context object, and the positioning result event is generated and sent to the control module, where the context object is included;

Step 108: After receiving the positioning result event, the control module saves the positioning result, and generates a successful completion event of the positioning process, where the context object is included and sent to the access module, and the access module completes the successful return of the Le interface, and the process ends;

Step 109, in the process of the foregoing process, if the GSM signaling gateway module fails during processing, such as timeout or receiving failure information, the failure information is recorded in the context object, and a positioning failure event is generated, which includes the context object. Send to the control module;

Step 110: After receiving the positioning failure event, the control module may not save the result, and generate a positioning process failure event, where the context object is included, sent to the access module, and completed by the access module.

The failure of the Le interface returns, and the process ends.

(2) Positioning of users in WCDMA networks under control plane mode

As shown in FIG. 2, the method for implementing the positioning of the gateway mobile positioning center of the present invention, when performing the positioning on the user in the WCDMA network in the control plane mode, specifically includes the following steps:

Step 201: Start a WCDMA signaling gateway module when the system starts;

Step 202: The positioning client initiates a positioning request to the user in the WCDMA network through the Le interface to the gateway mobile positioning center, and the access module creates a context object for the positioning request, which includes all the information in the positioning request, and sends the information to the control module. Sending a location request event, the context request object includes the context object, and the received location request event is identified by a globally unique event number;

Step 203: After receiving the event (receiving the location request event), the control module determines, according to the event number, that a positioning request is received, and the creation of the authentication request event is sent to the authentication module, where the authentication request event includes the context object. The authentication request event is identified by a globally unique event number. Step 204: After receiving the event (creating the authentication request event), the authentication module determines, according to the event number, an authentication request event, and extracts the context object from the The client information and the location initiator and the identifier of the located user are respectively performed for client authentication, service authentication, privacy authentication, etc., if the authentication is passed, a positioning initiation event is sent to the control module, otherwise the authentication is sent. a failure event, and the authentication result is recorded in the context object;

Step 205: The control module sends a positioning process to the access module if the authentication failure event is received. The failure event, which contains the context object, is returned by the access module to complete the failure of the Le interface, and the process ends.

Step 206: If the control module receives the location initiation event, the control module determines that the located user belongs to the WCDMA user according to the customized policy, and sends a WCDMA positioning request event to the WCDMA signaling gateway module, where the WCDMA positioning request event includes a context object.

Step 207: After receiving the request event (WCDMA location request event), the WCDMA signaling gateway module first sends an SRI message to the 3G-HLR according to the information in the context object, and queries the visited place of the user, and then according to the 3G of the current visited place of the user. The MSC or the 3G-SGSN sends a PSL message to the 3G-MSC or the 3G-SGSN, and the positioning result is taken from the return message of the 3G-MSC or the 3G-SGSN, and is packaged into a unified intermediate format, that is, the positioning result of the Le interface. The format, stored in the context object, and generated a positioning result event is sent to the control module, which contains the context object;

Step 208: After receiving the positioning result event, the control module saves the positioning result, and generates a successful completion event of the positioning process, where the context object is included and sent to the access module, and the access module completes the successful return of the Le interface, and the process ends; If the WCDMA signaling gateway module fails during processing, such as timeout or receiving failure information, the failure information is recorded in the context object, and a positioning failure event is generated, where the context object is included and sent to the control module;

Step 209: During the foregoing process, if the WCDMA signaling gateway module fails during processing, such as timeout or receiving failure information, the failure information is recorded in the context object, and a positioning failure event is generated, where the context object is included. Send to the control module;

Step 210: After receiving the location failure event, the control module may not save the result, and generate a location process failure event, where the context object is included and sent to the access module, and the access module completes the failure return of the Le interface, and the process ends.

(III) Simultaneous positioning of users in GSM and WCDMA networks under control plane mode As shown in FIG. 2, the method for realizing positioning of the gateway mobile positioning center of the present invention is implemented simultaneously for users in GSM and WCDMA networks in the control plane mode. When locating, the method includes the following steps: Step 3 (H, simultaneously start the GSM signaling gateway module and the WCDMA signaling gateway module when the system starts;

Step 302: The positioning client initiates a positioning request to the user in the GSM and WCDMA networks through the Le interface to the gateway mobile positioning center, and the access module creates a context pair for the positioning request. The image includes all the information in the positioning request, and sends a received positioning request event to the control module, where the received positioning request event includes the context object, and the received positioning request event is a globally unique event number. Identification

Step 303: After receiving the event (received the location request event), the control module determines, according to the event number, that a positioning request is received, and the creation of the authentication request event is sent to the authentication module, where the authentication request event includes the context object. The authentication request event is identified by a globally unique event number; Step 304, after receiving the event (authentication request event), the authentication module determines that it is an authentication request event according to the event number, and extracts the context object from the The included client information and the identity initiator and the identity of the located user are respectively authenticated by the client and authenticated by the user, and respectively authenticate the privacy of different users. If the authentication is passed, each one is separately The positioning user sends a positioning start event to the control module, otherwise sends an authentication failure event, and records the authentication result in the context; Step 305, if the control module receives the authentication failure event, it determines whether the request in the entire context object has been After processing, if yes, send the positioning process to the access module. Event, which contains the context object, Le performed by the access interface module fails to return, the flow ends;

Step 306: If the control module receives the location initiation event, the control module determines that the located users belong to the GSM and WCDMA users according to the customized policy, and sends the GSM and WCDMA positioning request events to the GSM and WCDMA signaling gateway modules respectively.

Step 307: After receiving the request event (GSM positioning request event/WCDMA positioning request event), the GSM signaling gateway module/WCDMA signaling gateway module first sends an SRI message to the 2G-HLR/3G-HLR according to the information in the context object. Querying the user's visited location, and then sending a PSL message to the 2G-MSC/3G-MSC or the 2G-SGSN/3G-SGSN according to the identity of the 2G-MSC/3G-MSC or 2G-SGSN/3G-SGSN currently visited by the user. The positioning result is taken out from the return message of the 2G-MSC/3G-MSC or the 2G-SGSN/3G-SGSN, and is packaged into a unified intermediate format, that is, the format of the positioning result of the Le interface, stored in the context object, and the positioning is generated. The result event is sent to the control module, which contains the context object;

Step 308: After receiving the positioning result event from the two signaling gateway modules, the control module saves the positioning result, and determines whether the request in the entire context object has been processed. If yes, the positioning process successfully ends the event, which includes The context object is sent to the access module, and the access module completes the successful return of the Le interface, and the process ends;

Step 309, in the foregoing process, if the GSM signaling gateway module or the WCDMA letter If the gateway module makes an error during processing, such as timeout or receiving failure information, the failure information is recorded in the context object, and a positioning failure event is generated, which includes the context object and is sent to the control module;

Step 310: After receiving the location failure event, the control module may not save the result, and determine whether the request in the entire context object has been processed. If yes, a positioning process failure event is generated, where the context object is included, and the access is sent to the access. The module returns the failure of the Le interface by the access module, and the process ends.

(4) Positioning of roaming users in WCDMA networks under control plane mode

The method for realizing the positioning of the gateway mobile positioning center of the present invention, when performing the positioning on the roaming user in the WCDMA network in the control plane mode, specifically includes the following steps:

Step 401: The roaming processing module and the WCDMA signaling gateway module are started when the system of the user's home is started, and the modules are also activated in the user's visited gateway mobile positioning center system. Step 402: The positioning client belongs to the user through the Le interface. The gateway mobile positioning center of the ground initiates a positioning request for the WCDMA user mobile phone roaming to the remote location, and the access module creates a context object for the positioning request, which contains all the information in the positioning request, and sends the receiving positioning request to the control module. An event, the context request object is included in the received location request event, and the received location request event is identified by a globally unique event number;

Step 403: After receiving the event (receiving the location request event), the control module determines that a location request is received according to the event number, and creates an authentication request event, where the context object is included and sent to the authentication module.

Step 404: After receiving the event (creating the authentication request event), the authentication module determines, according to the event number, an authentication request event, and extracts the context object from the client information and the location initiator and the located user according to the client information contained therein. The identifier is respectively performed for client authentication, service authentication, privacy authentication, etc., if the authentication is passed, a positioning initiation event is sent to the control module, otherwise an authentication failure event is sent, and the authentication result is recorded in the context object;

Step 405: If the control module receives the authentication failure event, the control module sends a location process failure event to the access module, where the context object is included, and the failure return process of the Le interface is completed by the access module;

Step 406: If the control module receives the location initiation event, if the determined user belongs to the WCDMA user according to the customized policy, the control module sends the WCDMA to the WCDMA signaling gateway module. a location request event, the WCDMA location request event includes a context object; Step 407, after receiving the event (WCDMA location request event), the WCDMA signaling gateway module sends an SRI message to the 3G-HLR to query the user's visited place, and then according to The visited location information determines that the user has roamed into the network belonging to the other gateway mobile positioning center, so the user visited location information is saved in the context object, and the user has roamed event, which contains the context object, and is sent to the control module. ;

Step 408: After receiving the roaming event, the control module re-packages the context object in the newly created roaming request event, and sends the message to the roaming processing module.

Step 409: The roaming processing module detects an address of the gateway mobile positioning center to which the home is located according to the information of the user visited, and sends an Lr request to the gateway mobile positioning center of the user's roaming place, and carries the user that has been detected from the HLR in the request. Visiting information;

Step 410: After receiving the Lr request, the roaming module of the user's visited gateway mobile location center creates a context object, which includes all the information in the Lr request, and sends a roaming start event to the control module.

Step 411: After receiving the roaming initiation event, the control module of the user's visited gateway mobile positioning center determines that the user privacy authentication is no longer needed, and determines that the user belongs to the WCDMA network according to the customized policy of the customer, and creates a WCDMA positioning request. The event is sent to the WCDMA signaling gateway module of the user's visited gateway mobile positioning center;

Step 412: After receiving the location request event, the WCDMA signaling gateway module of the user's visited gateway mobile location center obtains the information of the user's visited place from the context object, and does not send the SRI message to the user visited 3G-HLR. The PSL message is sent directly to the 3G-MSC or the 3G-SGSN of the user visited place, and the positioning result is taken out from the location message returned by the user, and is packaged into a unified intermediate format, that is, the format of the positioning result of the Le interface, which is stored in the context. In the object, and generating a positioning result event is sent to the control mode of the user's visited gateway mobile positioning center, which includes the context object;

Step 413: After receiving the positioning result event, the control module of the user visiting gateway mobile positioning center determines that the user context object is a roaming type context object, and then repackages the context object in the newly generated roaming process end event, and sends the content object to the user. Visiting the roaming processing module of the gateway mobile positioning center;

Step 414, the roaming processing module of the user's visited gateway mobile positioning center receives the process end event After the piece is responsible for packaging the positioning result in the Lr return message, and sending it to the roaming processing module of the gateway mobile positioning center of the user's home;

Step 415: After receiving the Lr return message, the roaming processing module of the user's home location extracts the positioning result and converts it into a unified intermediate message format, that is, the format of the positioning result of the Le interface, and saves it in the context object, and roams through The result event is sent to the control module of the user's home location; Step 416, after receiving the roaming result event, the control module of the user's home location saves the positioning result contained therein, and generates a successful completion event of the positioning process, which includes the context object, and sends the In the access module, the access module completes the successful return of the Le interface, and the process ends;

Step 417: If the roaming processing module fails during processing, such as timeout or receiving failure information, the failure information is recorded in the context object, and a roaming positioning failure event is generated, where the context object is included and sent to the control module;

Step 418: After receiving the roaming location failure event, the control module may not save the result, and generate a location process failure event, where the context object is sent to the access module, and the access module completes the failure return of the Le interface, and the process ends.

(5) Positioning of mobile network users in user plane mode

The method for implementing the positioning by the gateway mobile positioning center of the present invention, when performing the positioning on the user in the mobile network in the user plane mode, specifically includes the following steps:

Step 501, the user plane processing module is started when the system starts.

Step 502: The positioning client initiates a positioning request to the user mobile phone supporting the user plane positioning function by using the Le interface to the gateway mobile positioning center, and the access module creates a context object for the positioning request, and includes all the information in the positioning request. The control module sends a location request event, where the context request object includes the context object, and the received location request event is identified by a globally unique event number;

Step 503: After receiving the event (receiving the location request event), the control module determines, according to the event number, that a positioning request is received, and the creation of the authentication request event is sent to the authentication module, where the authentication request event includes the context object. The authentication request event is identified by a globally unique event number. Step 504: After receiving the event (creating the authentication request event), the authentication module determines, according to the event number, an authentication request event, and extracts the context object from the The client information and the identifier of the location initiator and the user to be located are respectively performed for client authentication, service authentication, privacy authentication, etc., if the authentication is passed, a positioning initiation event is sent to the control module, otherwise the notification is sent. Authentication failure event, and Recording the authentication result in the context object;

Step 505: If the control module receives the authentication failure event, the control module sends a location process failure event to the access module, where the context object is included, and the access module completes the failure return of the Le interface, and the process ends;

Step 506: If the control module receives the location initiation event, it determines, according to the customized policy, the user mobile phone supports the user plane location function, and sends a user plane location request event to the user plane processing module.

Step 507: After receiving the request event (user plane location request event), the user plane processing module first sends a SUPL INIT message to the located user through a WAP (Wireless Application Protocol) gateway or a short message center according to the information in the context object. After responding to and actively establishing a TCP connection, the SUPLPOS INIT message sent by the located user is received, and the user's coarse precision location information is detected from the database according to the cell information in the SUPLPOS INIT message, and the user is obtained through the interface with the SLC. The auxiliary data is measured and sent to the user through the SUPLPOS message. The user completes the positioning measurement according to the user measurement auxiliary data, and then returns the measurement report through the SUPLPOS message. The user plane processing module then calculates the SLC according to the user's measurement result through the interface between the SLC and the SLC. The user's precise location information, and the result is packaged into a unified intermediate format, that is, the format of the positioning result of the Le interface, stored in the context object, and the generated positioning result event is sent to the control module, which includes the context object;

Step 508: After receiving the positioning result event, the control module saves the positioning result, and generates a successful completion event of the positioning process, where the context object is included and sent to the access module, and the access module completes the successful return of the Le interface, and the process ends;

Step 509: If the user plane processing module fails during processing, such as timeout or receiving the failure information, the failure information is recorded in the context object, and a positioning failure event is generated, where the context object is included and sent to the control module;

Step 510: After receiving the location failure event, the control module may not save the result, and generate a location process failure event, where the context object is included and sent to the access module, and the access module completes the failure of the Le interface, and the process ends.

It can be seen from the above description of the specific implementation details of the technical solution that the technical solution can fully meet the requirements of supporting multiple mobile network positioning services and multiple positioning architectures at the same time. The invention may, of course, be embodied in various other embodiments without departing from the spirit and scope of the invention. Positioning, periodic positioning, event-triggered positioning, and increased system maintenance. However, such corresponding changes and modifications are intended to be included within the scope of the appended claims. Industrial applicability

The invention can adapt to the interfaces of various mobile communication networks, supports the functions of simultaneously locating users in different networks, supports the smooth evolution of the protocol version of the network system, and simultaneously adapts to different positioning architectures, and supports the control plane mode. The positioning below also supports positioning in the user plane mode. At the same time, it can reduce system investment, facilitate system maintenance, and reduce operating costs.

Since the present invention uses an asynchronous event-driven approach, it not only demonstrates the advantages of a tightly coupled system, but also maintains a loosely coupled connection between various parts of the system, as well as increasing the throughput of the system.

The present invention facilitates the analysis and modeling of systems using an object-oriented approach.

Claims

Claim

A gateway mobile positioning center, comprising an access module, a control module and a service layer module connected in sequence, wherein:

The service layer module includes a plurality of signaling gateway modules for implementing positioning services corresponding to different mobile networks;

The control module is configured to route a location request to one or more of the plurality of signaling gateway modules according to a type of mobile network of the located user;

The positioning results returned by the plurality of signaling gateway modules to the control module have a unified format.

2. The gateway mobile positioning center according to claim 1, wherein the access module, the control module and the service layer module mutually control by event triggering, and the same context encapsulated in the event The data structure operates, the event having a globally unique event name or event number, and the control module routes the location request to one or more of the plurality of signaling gateway modules for positioning processing using different events.

The gateway mobile positioning center according to claim 2, wherein the service layer module further comprises a user plane processing module, configured to implement positioning of a mobile phone supporting a user plane positioning function, and the control module is further configured to: The location request is routed to the user plane processing module for location processing using an event.

The gateway mobile positioning center according to claim 2, wherein, when one of the plurality of signaling gateway modules includes a plurality of evolved versions, the signaling gateway module includes corresponding to the same a plurality of signaling gateway sub-modules of different evolved versions of the mobile network, the control module is further configured to use an event to route the positioning request to one of the signaling gateway sub-modules for positioning according to the mobile network type of the located user. Processing, the plurality of signaling gateway sub-modules corresponding to different evolved versions of the same mobile network use the same event to communicate with the control module.

The gateway mobile positioning center according to claim 2, wherein the service layer module further comprises a roaming processing module, configured to implement positioning when the located mobile phone roams, and the signaling gateway module is further used for After determining the roaming status of the located mobile phone, the positioning request is sent to the roaming processing module by the control module for positioning processing.

The gateway mobile positioning center according to claim 2, wherein the service layer module further comprises an authentication module, configured to identify the client information, the location initiator, and the located user. Perform client authentication, service authentication, and privacy authentication respectively.

The gateway mobile positioning center according to claim 2, wherein the control module distinguishes the mobile network of the located user according to the number of the located user, the capability of the user terminal, or the network environment in which the user is located. Types of.

A method for implementing a gateway mobile positioning center, comprising the steps of: setting an access layer module, configured to be responsible for processing of a Le interface;

The method for implementing the gateway mobile positioning center according to claim 8, further comprising the step of: setting a user plane processing module, configured to implement positioning of the mobile phone supporting the user plane positioning function, wherein the control module uses the event The positioning request is routed to the user plane processing module for positioning processing.

The method for implementing a gateway mobile positioning center according to claim 8, further comprising the steps of:

And a roaming processing module corresponding to the signaling gateway module, configured to implement positioning when the located mobile phone roams, and the signaling gateway module determines a roaming status of the located mobile phone, and then uses a positioning request to pass the control module. Sending to the roaming processing module for positioning processing.

An authentication module is configured to perform client authentication, service authentication, and privacy authentication on the client information, the location initiator, and the identifier of the located user respectively, and the positioning is continued after the authentication is passed, otherwise the control module passes The access module completes the failure return of the Le interface.