CN1859680A - Method for realizing positioning flow control in mobile communication network - Google Patents

Abstract

A method for realizing positioning flow control in a mobile communication network. When a positioning system receives a positioning request, it sends a routing request message to an HLR, and the HLR returns a response message carrying the service MSC information of a terminal to be positioned; The traffic of the MSC is counted and counted; if the traffic corresponding to the serving MSC reaches the set flow control point, the positioning system will no longer perform the positioning trigger operation and terminate the positioning; otherwise, continue to complete the positioning of the mobile terminal; after completing the positioning of the mobile terminal After positioning or terminating the positioning, the positioning system should clear the flow of the serving MSC or decrement the corresponding count. The present invention controls the flow by setting a flow threshold for the MSC where the user is currently located, which can reduce the channel resource burden on the main equipment and ensure the normal operation of the mainstream voice service.

Description

A method for realizing positioning flow control in mobile communication network

technical field

The invention relates to a mobile communication network system, in particular to a method for realizing location flow control in a mobile communication network.

Background technique

Location-based services (Location Based Services, referred to as LBS), also known as mobile location services or positioning services, means that the mobile network obtains the geographic location information (latitude and longitude coordinates) of the mobile terminal through a specific positioning technology, and provides it to the mobile user himself, communication System or a third party, with the support of certain electronic map information, provides mobile users with calling or non-calling services related to their location. The applications of positioning services can be divided into several types such as location trigger applications, location information applications, tracking applications, and rescue applications.

Figure 1 describes the network structure diagram of the positioning system of the mobile communication network system. The positioning system includes traditional network entities and newly added entities. The former mainly includes mobile stations, mobile switching centers and home location registers, and the latter mainly includes mobile positioning centers, positioning entities, and positioning service clients.

The mobile station (MS for short) is the user terminal equipment of the positioning service, and its main function is to provide measurement information related to the positioning of the mobile terminal. At the same time, the application realization of some positioning services is completed.

The Mobile Position Center (MPC for short) is the core entity for the realization of positioning services. The main function is to control the positioning process, interact with various entities, and store and provide the user's location information. The mobile location center can also be called the gateway mobile location center (Gateway Mobile Location Center referred to as GMLC).

The function of the positioning entity (Position Determining Entity, referred to as PDE) is mainly to process the information sent by the mobile station to the network side, thereby calculating the position of the mobile terminal, and providing auxiliary positioning data for the positioning of the mobile station. The positioning entity can also be called Serving Mobile Location Center (SMLC for short).

Location Service Client (LCS Client for short) is a business application entity. It obtains the user's location through the mobile positioning center, and then provides different location services according to the user's location. This entity is managed by the location service provider.

The mobile station, the mobile positioning center, the positioning system and the positioning service client are connected through TCP/IP or No. 7 signaling network. The communication between the mobile positioning center, the mobile switching center and the home location register is carried out through the No. 7 signaling network. During physical implementation, two or more entities in the network structure can be combined into one entity.

The positioning service is currently widely used in various fields of industry, such as logistics, vehicle, navigation and other fields. The characteristic of the industry application field is that the positioning interval is very frequent. Analyze the current positioning technology. For example, AGPS technology needs to occupy a data service channel for each positioning, and AFLT positioning also requires the mobile phone to initiate measurement on the service channel every time it is positioned. Generally speaking, a positioning operation needs to consume more wireless channel resources. In the field of industry, the time interval required for positioning is very short, and some fields even require a positioning interval of 5 seconds. Such frequent positioning traffic will cause the channel resources of wireless access devices to be exhausted, thereby affecting normal voice business.

Contents of the invention

The technical problem to be solved by the present invention is to try to locate traffic in the existing mobile communication network positioning technology for mobile terminals, thereby reducing the use of wireless channel resources.

The method of the present invention is:

A method for positioning a mobile terminal in a mobile communication network, the steps of which are:

1. When the positioning system receives a positioning request, it sends a routing request message to the HLR (Home Location Register), and the HLR returns a routing request response message, which carries the service MSC (Mobile Switching Center) information of the terminal to be positioned in the response message ; The routing request message can be SMSREQ (short message request) message, POSREQ (position request) message, LPREQ (LCS parameter request, i.e. positioning parameter request) message, MAP-SEND-ROUTING-INFO-FOR-SM (short message routing request) message, MAP-SEND-ROUTING-INFO-FOR-LCS (LCS routing request, that is, location routing request) message or MAP-ANY-TIME-INTERROGATION (application query request) message, etc., such messages can be requested to HLR The address of the serving MSC; the information of the serving MSC refers to the address of the MSC or the identity of the MSC;

2. The positioning system counts the traffic of the serving MSC;

3. If the traffic corresponding to the serving MSC reaches the set flow control point within a unit of time or at that moment, the positioning system will no longer perform positioning trigger operations and terminate the positioning; otherwise, the positioning system will continue to issue positioning trigger messages or The position request and other messages are sent to the mobile switching center to continue to complete the positioning of the mobile terminal;

4. After the positioning of the mobile terminal is completed or the positioning is terminated, the positioning system should clear the flow of the serving MSC or decrement the corresponding count.

The set flow control point is a flow control threshold set in advance in the positioning system for each MSC or a unified flow threshold set in advance for all MSCs.

The present invention is based on the prior art. After the mobile positioning system obtains the address of the MSC where the user is located, it controls the flow by setting a flow threshold for the MSC where the user is currently located, so as to reduce the channel resource burden on the main equipment. And ensure the normal operation of mainstream voice services.

Description of drawings

Fig. 1 is a network structure diagram of a positioning service in a mobile communication network;

Fig. 2 is a schematic flow chart of the technical solution of the present invention;

Fig. 3 is a schematic diagram of the positioning process of the first embodiment of the present invention applied to a CDMA network;

Fig. 4 is a schematic diagram of the positioning process of the second embodiment of the present invention applied to a CDMA network;

Fig. 5 is a schematic diagram of the positioning process of the third embodiment of the present invention applied to a CDMA network;

Fig. 6 is a schematic diagram of a positioning flow of an embodiment of the present invention applied to a GSM network.

Detailed ways

FIG. 2 shows a schematic flow chart of the technical solution of the present invention.

201: The positioning system has received a positioning request sent by a mobile terminal such as a mobile phone or a positioning client;

202: The positioning system sends a routing request message to the home location register, which can be an SMSREQ message, a POSREQ message, an LPREQ message, a MAP-SEND-ROUTING-INFO-FOR-SM message, or a MAP-SEND-ROUTING-INFO-FOR-LCS message message or MAP-ANY-TIME-INTERROGATION message;

203: The HLR returns a routing request response message, which includes the information of the MSC where the user is currently located, such as the MSC address or MSC identifier;

204: The positioning system counts the traffic of the MSC where the user is located;

205: If the traffic corresponding to the serving MSC per unit time or time reaches the set flow control point, the positioning system does not perform the positioning trigger operation after completing the positioning request message operation of the user, terminates the positioning, and executes step 207;

206: If the traffic corresponding to the serving MSC does not reach the flow control point within a unit of time or at this moment, the positioning system continues to send a positioning trigger message or a location request to the mobile switching center according to the normal process, and continues to complete positioning;

207: After the positioning of the mobile terminal is completed or the positioning is terminated, the positioning system should clear or decrement the flow of the serving MSC.

FIG. 3 shows an embodiment of a positioning process based on a control plane in a CDMA network according to the present invention. This process can refer to the international standard PN4747 or TIA/EIA/IS881, and the protocol name is LOCATION SERVICESENHANCEMENTS.

301: The LCS client computer sends an ISPOSREQ (intersystem location request) to the Mobile Positioning Center (MPC) of the target mobile phone;

302: The MPC authenticates the LCS client and passes it, and the MPC sends LPREQ (LCS parameter request) to the home location register (HLR) of the mobile phone;

303: HLR determines that the target mobile phone is currently in an active state, and HLR returns lpreq (LCS parameter request response) to the mobile positioning center, and the lpreq message includes the MSC identifier where the user is currently located;

304: The MPC counts the traffic of the MSC on the service MSC identification parameter returned in the lpreq message (LCS parameter request response), and if the traffic of the MSC exceeds the process control point configured by the MPC within a unit of time or at this moment, step 308 is directly executed , end the positioning process; otherwise, continue the following process;

305: The MPC sends an ISPOSREQ message (intersystem location request) to the serving mobile switching center (MSC) to obtain the current wireless environment information of the target mobile phone;

306: The serving MSC includes the current wireless environment information of the target mobile phone in the isposreq response message (intersystem location request response) and returns it to the MPC;

307: MPC performs IS801 message interaction with the positioning entity (PDE) and the MS according to the support of the mobile station (MS) for IS801 and the currently requested service quality and other parameters. The PDE obtains the wireless information of the MS and calculates the current location of the MS Geographical location information, returning the current geographic location information of the MS to the MPC;

308: The MPC includes the location information of the mobile phone or the cause of the positioning failure in the isposreq message (intersystem location request response) and returns it to the requesting LCS client, and the MPC should clear or decrement the flow of the serving MSC.

FIG. 4 shows an embodiment of another location process based on the control plane in the CDMA network of the present invention.

401: The LCS client computer sends a Location Immediate Request (LIR) to the Mobile Positioning Center (MPC) of the target mobile phone;

402: The MPC authenticates the LCS client and passes it, and the MPC sends SMSREQ (short message request) to the home location register (HLR) of the mobile phone;

403: HLR determines that the target mobile phone is currently in an active state, and HLR returns smsreq (short message request response) to the mobile positioning center, and the smsreq message includes the MSC address where the user is currently located;

404: The MPC counts the MSC traffic on the service MSC address parameter returned in the smsreq message. If the MSC traffic per unit time or at this moment exceeds the process control point configured by the MPC, directly execute step 407 to end the positioning process, otherwise continue with the following process;

405: The MPC sends an ISPOSREQ message (intersystem location request) to the serving mobile switching center (MSC) to obtain the current wireless environment information of the target mobile phone;

406: The serving MSC includes the current wireless environment information of the target mobile phone in the isposreq response message (intersystem location request response) and returns it to the MPC;

407: The MPC interacts with the positioning entity (PDE) and the MS according to the IS801 support of the mobile station (MS) and the current requested service quality and other parameters. The PDE obtains the wireless information of the MS and calculates the current MS Geographical location information, returning the current geographic location information of the MS to the MPC;

408: The MPC includes the location information of the mobile phone or the location failure reason in the LIA (Location Immediate Request Answer) and returns it to the requesting LCS client, and the MPC should clear or decrement the flow of the serving MSC.

FIG. 5 shows an embodiment of a user plane-based positioning process in a CDMA network according to the present invention. This process can refer to the international standard 3GPP2 XP.0024, and the protocol name is IP-Based Location Services.

501: The LCS client computer sends a Location Immediate Request (LIR) to the Mobile Positioning Center (MPC) of the target mobile phone;

502: The MPC authenticates the LCS client and passes it, and the MPC sends SMSREQ (short message request) to the home location register (HLR) of the mobile phone;

503: HLR determines that the target mobile phone is currently in an active state, and HLR returns smsreq (short message request response) to the mobile positioning center, and the smsreq message includes the MSC address where the user is currently located;

504: The MPC counts the MSC traffic on the service MSC address parameter returned in the smsreq message; if the MSC traffic per unit time or at this moment exceeds the process control point configured by the MPC, directly execute step 512 to end the positioning process; otherwise continue with the following process;

505: The MPC sends a point-to-point short message trigger message to the serving mobile switching center (MSC), and the mobile switching center sends the short message to the mobile phone;

506: The MS sends a StartPositioningProcessRequest message (positioning start request) to the MPC, agreeing to the positioning;

507: MPC sends GEOPOSREQ to positioning entity (PDE) by using GEOPOSREQ message (geographic location request);

508: The PDE returns a geoposreq' message (geolocation request response) to the MPC, confirming that it is ready to accept the IS-801 message from the MS;

509: The MPC sends a StartPositioningProcessResponse (positioning start request response) message including the used PDE address and port number to the MS;

510: Exchanging IS801 messages between the positioning entity and the MS;

511: The positioning entity encapsulates the current geographic location information of the MS in a geoposreq' (geographic location request response) message and returns it to the MPC;

512: The MPC includes the location information of the mobile phone or the cause of the positioning failure in the LIA and returns it to the requesting LCS client, and the MPC should clear or decrement the flow of the serving MSC.

FIG. 6 shows an embodiment of a positioning process based on a control plane in a GSM network according to the present invention.

601: The LCS client sends a location service request to the Gateway Mobile Location Center (GMLC) of the target mobile phone;

602: The GMLC authenticates the LCS client and passes it, and the GMLC sends MAP_SEND_ROUTING_REQ_FOR_LCS (LCS routing request) to the home location register (HLR) of the mobile phone;

603: The HLR determines that the target mobile phone is currently in an active state, and the HLR returns MAP_SEND_ROUTING_ACK_FOR_LCS (LCS routing request response) to the GMLC, and the response message includes the MSC address where the user is currently located;

GMLC counts the traffic of the MSC on the service MSC address parameter returned in the MAP_SEND_ROUTING_ACK_FOR_LCS (LCS Routing Request Response) message. If the traffic of the MSC per unit time or at this moment exceeds the process control point configured by the MPC, the positioning process ends , otherwise continue the following process;

604: GMLC sends a MAP_Provide_Subscriber_Location_Req message (subscriber location request message) to the serving Mobile Switching Center (MSC) to obtain the current wireless environment information of the target mobile phone;

605: The serving mobile location center (SMLC) performs signaling interaction with the MSC and the MS to obtain the wireless environment information where the target mobile phone is currently located. Since this process is irrelevant to the present invention, it will not be repeated here;

606: The serving MSC includes the current wireless environment information of the target mobile phone in the MAP_Provide_Subscriber_Location_Ack response message (subscriber location request response) and returns it to the GMLC;

607: The GMLC includes the location information of the mobile phone or the location failure reason in the location service request response and returns it to the requesting LCS client, and the GMLC should clear or decrement the traffic of the serving MSC.

Claims (5)

1. A method for realizing positioning flow control in a mobile communication network, the steps of which are: 1.1 After receiving a positioning request, the positioning system sends a routing request message to the home location register, and the home location register returns a routing request response message, which carries the information of the serving mobile switching center of the terminal to be positioned, 1.2 The positioning system counts the traffic of the service mobile switching center; 1.3 If the traffic corresponding to the serving mobile switching center reaches the set flow control point within a unit time, the positioning system will no longer perform positioning trigger operations and terminate the positioning; otherwise, the positioning system will continue to issue positioning trigger messages or location requests according to the normal process Wait for the message to the mobile switching center, and continue to complete the positioning of the mobile terminal; 1.4 After the positioning of the mobile terminal is completed or the positioning is terminated, the positioning system shall clear or decrement the traffic of the serving mobile switching center. 2. The method for realizing positioning flow control in a mobile communication network according to claim 1, wherein said routing request message is a short message request message, a location request message, a positioning service parameter request message, and a short message routing request message 1. Locate a service routing request message or an application query request message. 3. The method for realizing positioning flow control in a mobile communication network according to claim 1, wherein said mobile switching center information refers to a mobile switching center address or a mobile switching center identification. 4. The method for realizing location flow control in a mobile communication network according to claim 1, characterized in that said set flow control point is a flow control threshold set in advance for each mobile switching center in the location system. 5. The method for realizing positioning flow control in a mobile communication network according to claim 1, characterized in that the set flow control point is a unified flow threshold preset for all mobile switching centers.

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