WO2008092392A1 - Procédé, dispositif et système de fourniture de service de localisation - Google Patents

Procédé, dispositif et système de fourniture de service de localisation Download PDF

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Publication number
WO2008092392A1
WO2008092392A1 PCT/CN2008/070040 CN2008070040W WO2008092392A1 WO 2008092392 A1 WO2008092392 A1 WO 2008092392A1 CN 2008070040 W CN2008070040 W CN 2008070040W WO 2008092392 A1 WO2008092392 A1 WO 2008092392A1
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WIPO (PCT)
Prior art keywords
positioning
target terminal
network
function entity
client
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PCT/CN2008/070040
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English (en)
Chinese (zh)
Inventor
Yong Xie
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Huawei Technologies Co., Ltd.
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Publication of WO2008092392A1 publication Critical patent/WO2008092392A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/02—Services making use of location information
    • H04W4/029—Location-based management or tracking services
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/02—Services making use of location information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/20—Services signaling; Auxiliary data signalling, i.e. transmitting data via a non-traffic channel

Definitions

  • the present invention relates to the field of communications, and more particularly to physical positioning techniques in a global access microwave interoperability system.
  • WiMAX Worldwide Interoperability for Microwave Access
  • MS/MSS Mobile Subscribe Station
  • ASN access service network
  • CSN connection service network
  • the access service network (ASN) includes a base station (BS) and an access service network gateway (Access Service Network GateWay, ASN-GW), and the connection service network (CSN) includes a prepaid server (Pre-Paid Server).
  • PPS PPS
  • AAA Authentication/Authorization/Accounting
  • the access service network is mainly used to ensure establishment of a layer 2 (LB) connection between a user terminal (MS/MSS) in a WiMAX network and a base station (BS) in a WiMAX network; radio resource management; network discovery And the optimal choice of the network service provider (ASP Network); acting as a proxy server to control the authentication, authorization, and accounting messages of the MS in the proxy mobile IP mode; and providing relay for the establishment of the Layer 3 (L3) application connection of the MS .
  • LB layer 2
  • BS base station
  • ASP Network network service provider
  • connection service network is mainly used for assigning an IP address to an MS for performing a network session; providing Internet Internet access; acting as an authentication and authorization charging proxy server or an authentication and authorization accounting server; and performing policy and access control based on user subscription data.
  • CSN connection service network
  • the current WiMAX network cannot provide the user with location service (LCS).
  • the so-called LCS service refers to obtaining the geographical location information (including longitude coordinates and latitude) of the mobile terminal (MS/MSS) user through the mobile network. Coordinates, and a value-added service that provides location services to users with the support of an electronic map platform.
  • MS has become an indispensable part of people's life.
  • the importance of mobile location business has become increasingly prominent.
  • Location business can also be used for emergency assistance, elderly tracking, fleet management and so on. Therefore, as a mobile broadband metropolitan area network, the WiMAX network system needs to provide support in positioning technology to meet the needs of wireless location service development. Summary of the invention
  • embodiments of the present invention provide a method of providing location services that provide location services to users in existing WiMAX systems.
  • embodiments of the present invention also provide a communication device that provides location services for processing client requests in a location service of a WiMAX system.
  • an embodiment of the present invention further provides a communication device for providing location services for performing a positioning operation in a location service of a WiMAX system.
  • the embodiment of the invention further provides a system for providing location services, and provides location services for users through WiMAX technology.
  • a method of providing location services in a WiMAX system including:
  • the positioning server sends a second request message for acquiring physical location information of the target terminal to the positioning control function entity where the target terminal is currently located according to the routing information;
  • the positioning control function entity performs a positioning operation on the target terminal and returns a positioning result to the positioning client side.
  • a communication device comprising:
  • a communication device configured to receive a second request message sent by a positioning server in a visited network where a client is currently located, and perform a positioning operation on the target terminal according to the second request message, and to the client The side returns the corresponding positioning result.
  • a communication system comprising:
  • the positioning client is configured to send the first request message to the positioning server in the visited network where the target terminal is currently located when acquiring the physical location information of the target terminal by the positioning client;
  • the positioning server is configured to receive the first request message sent by the positioning client, and send a second request message for acquiring the physical location information of the target terminal to the positioning control function entity currently in the target terminal according to the routing information.
  • the positioning control function entity is used for positioning the target terminal and returning the positioning result to the positioning client side.
  • the location server in the visited network of the target terminal when receiving the message for acquiring the physical location information of the target terminal, sends the message to the positioning control function entity where the target terminal is currently located, by the positioning.
  • the control function entity performs a positioning operation on the target terminal, and returns a positioning result to the positioning client side.
  • 1 is a network architecture diagram of a WiMAX system in the prior art; 1 is a first network architecture diagram of a WiMAX system according to an embodiment of the present invention;
  • FIG. 3 is a structural diagram of a function of a positioning server according to an embodiment of the present invention.
  • FIG. 4 is a second network architecture diagram of a WiMAX system according to an embodiment of the present invention.
  • FIG. 5 is a flowchart of physical location information of a target terminal that acquires a roaming state by a positioning client according to an embodiment of the present invention
  • FIG. 6 is a flow chart of obtaining physical location information of the positioning client when the positioning client is in a roaming state according to an embodiment of the present invention.
  • the positioning client is used to obtain the physical location information of the target terminal.
  • the first request message is sent to the location server in the visited network where the target terminal is currently located; the location server sends a second request message for acquiring the physical location information of the target terminal to the location control of the target terminal according to the routing information.
  • a function entity after receiving the second request message, the positioning control function entity performs a positioning operation on the target terminal, and returns a positioning result to the positioning client side.
  • the WiMAX system in this embodiment includes a positioning client 20 (LCS Client), a positioning server 21 (LCS Server), an access service network gateway 22 (ASN-GW), and a positioning control function entity 23 (Location). Control Funt ion, LCF) and target terminal 24 (target MS).
  • LCF positioning control function entity
  • the location client 20 is a user using a location service (LCS Client), which initiates a location operation procedure for the target terminal 24 to the location server 21;
  • the location server 21 (LCS Server) is generally located in a connection service network (CSN) And configured to receive and process a location request message (including a location service request message and a location service call message), and send a location report control request message to the corresponding location control function entity 23 according to the route information;
  • the access service network gateway 22 uses Receiving the location report control request message sent by the location server 21, and forwarding the message to the corresponding location control function entity 23;
  • the location control function entity 23 is a location function control center in the access service network (ASN), After receiving the location report control request message sent by the location server 21, the target terminal 24 is located according to the quality of service request in the request, and the capabilities of the access service network SN) and the target terminal 24 to select an appropriate positioning method.
  • the positioning result includes physical location information (including horizontal precision information, vertical precision information, and speed direction information) of the target terminal 24;
  • the target terminal 24 includes the function of the LCS C ient, and can be located by itself or by the positioning client 20, that is, the target terminal 24 and the positioning client 20 can be the same entity or different entities that are independent of each other. .
  • the positioning server 21 includes a receiving module 210, a processing module 211, and a sending module 212.
  • the receiving module 210 is configured to receive a location service request message or a location service call message, and receive a positioning result of the target terminal 24;
  • the processing module 211 is configured to obtain related routing information, and perform permission verification on the positioning client 20, And performing the private verification on the positioning client 20 according to the user subscription information of the target terminal 24, or determining whether the positioning result meets the quality of service requirement after receiving the positioning result, and making the positioning result private according to the user subscription information of the target terminal 24.
  • the sending module 212 is configured to send the positioning report control request message to the positioning control function entity 23 where the target terminal 24 is currently located according to the related routing information, and send the corresponding positioning result to the positioning client 20.
  • the location function server 21 is configured with a policy function entity (PF entity) and an authentication/authorization/accounting function entity (AAA entity).
  • PF entity policy function entity
  • AAA entity authentication/authorization/accounting function entity
  • the PF entity is configured to provide the routing information
  • the positioning server 21 is connected to the positioning control function entity 23 where the target terminal 24 is currently located
  • the AAA entity is configured to save the user subscription information and related routing information of the positioning client 20
  • the other location server 21 is connected to the location server 21 in the home network of the target terminal 24 or/and the location server 21 in the visited network where the target terminal 24 is currently located.
  • the PF entity and the AAA entity may be function modules in the location server 21, or may be independent functional entities, which does not affect the final implementation effect. This embodiment is described in the second manner.
  • the WiMAX system also includes a base station (BS), a positioning measurement function entity (Loca t ion Measurement Unit, LMU) and Global Positioning Receiver (GPS Receiver).
  • the location measurement function (LMF) in the base station (BS) is used to perform measurement and reporting of information required for positioning; the positioning measurement function entity is used to assist the positioning control function entity 23 in performing measurement of certain related information,
  • the base station or the positioning measurement function entity may broadcast related information of the monthly service base station and the neighboring base station to assist the target terminal 24 to perform positioning measurement and/or location calculation, where the related information includes location information of the serving base station and the neighboring base station, Timing and synchronization information, positioning satellite information and position correction parameters, etc., the content of the related information can be encrypted, only authorized authorized target terminal 24 can receive correctly; global positioning information receiving device is used to receive GPS/Galileo positioning satellite transmission
  • the parameters and information related to the positioning operation can also be used for timing and time correction of the base station, and the device can be located in the base
  • a Mobile Termination-Location Request (MT-LR) is taken as an example.
  • the MT_LR refers to the target terminal 24 (hereinafter referred to as the target MS) as the target.
  • the originator of the location process is an external or internal entity of the network, not the target MS itself. Referring to FIG.
  • the positioning client 20 (LCS Client) of the external network using the LCS service needs to physically locate a mobile terminal (target MS) in a roaming state
  • the current visited network of the LCS client is called Requesting Network
  • the positioning server 21 in the requesting network is called a Requesing-LCS Server (R-LCS Server)
  • R-LCS Server Requesing-LCS Server
  • the PF entity in the requesting network is called R-PF
  • the AAA entity in the requesting network R-AAA the positioning server 21 in the home network (MS Home Network) of the target MS that needs to be physically located
  • H-LCS. Server the PF entity in the home network
  • the AAA entity in the home network is called H-AA A.
  • the network that the target MS is in when roaming is called the visited network (Visited Network).
  • the locating server is called a Visited-LCS Server (V-LCS Server).
  • the PF entity in the visited network is called V-PF
  • the AAA entity in the visited network is called V-AAA.
  • the visited network is called Target to target MS
  • the positioning control function entity 23 performing the positioning operation is called an LCF.
  • the LCF may be a logical function module on the access service network gateway (Server ASN-GW) currently serving the target terminal 24, or It is an independent entity, which does not affect the final implementation effect. This embodiment is described in the second way.
  • the detailed process of obtaining the physical location information of the target MS in the roaming state by the LCS C I ient is as follows:
  • Step 300 The LCS C ient initiates a location service request message (LCS Serv i ce Reques t ) for obtaining physical location information of the target MS to the R-LCS Server.
  • the location service request message includes a user identifier, a requested content (including a horizontal accuracy information request, a vertical precision information request, and a speed direction information request) and a quality of service request, and the location service request message may further include Time requirements, such as: Request message returns the positioning result immediately or allows the positioning result to be returned after a certain time delay.
  • Step 301 After receiving the location service request message, the R-LCS server performs rights verification on the LCS C ient according to the user identifier in the request message, that is, determines whether the LCS C ient has the right to obtain the physical location information of the target MS. .
  • Step 302 The R-LCS Server sends a routing request message to the H-AAA of the target MS to obtain the network address of the H-LCS Server of the target MS.
  • the routing request message may be sent by the R-LCS Server to the H-AAA, or may be sent by the R-AAA to the H-AAA, and the R-LCS Server or the R-AAA may obtain the home network of the target MS by using the identification information of the target MS. Location, and send a routing request message to the H-AAA or H-LCS Server of the home network.
  • Step 303 The H-AAA verifies, according to the routing request message, whether the R-LCS Server has the right to obtain the network address of the H-LCS Server, and if so, returns the network address of the H-LCS Server of the target MS to the R-LCS Server. ; Otherwise, the corresponding error message is returned.
  • Step 304 The R-LCS Server forwards the location service request message of the LCS C nit to the H-LCS Server for processing according to the network address of the H-LCS Server.
  • Step 305 The H-LCS Server performs private authentication on the LCS-Client, that is, whether the LCS-Client is allowed to obtain the physical location information of the target MS according to the user subscription information of the target MS.
  • Step 306 The H-LCS Server queries the H-AAA for the current location of the target MS.
  • Step 307 When determining that the target MS is in the roaming state, the H-AAA returns the network address of the V-LCS Server in the visited network where the target MS is currently located to the H-LCS Server.
  • H-AAA can directly return the network address of the V-LCS Server to the H-LCS Server, or obtain the network address of the V-LCS Server from the V-AAA, and then return the network address to the H.
  • -LCS Serve
  • Step 308 The H-LCS Server forwards the location service request message of the LCS CI ient to the V-LCS Server, and the request message also carries the result of the H-LCS Server performing private verification on the LCS CI ient.
  • Step 309 The V-LCS Server obtains the local V-PF or V-AAA network address by using an automatic or manual configuration method, and queries the local V-PF or V-AAA for the network address of the LCF where the target MS is currently located.
  • the V-PF When the V-LCS Server queries the local V-PF, the V-PF first obtains the network address of the anchor access service network gateway (Anchor ASN GW).
  • Anchor ASN GW connects the target MS to the connection service through the R3 interface.
  • the network (CSN) gateway the V-PF records the location information of the Service Flow Authenticator (SFA) on the Anchor ASN GW. Therefore, the V-PF can obtain the network address of the Anchor ASN GW; After the network address, the V-PF further queries the Anchor ASN GW for the network address of the serving service network gateway (Serving ASN GW) that currently serves the target MS, and continues to obtain the network of the LCF where the target MS is currently located through the Serving ASN GW. address.
  • SFA Service Flow Authenticator
  • the V-LCS server queries the local V-AAA
  • the V-AAA first obtains the network address of the access service network gateway where the current authentication device (Anchor Authenticator) is located, and then the V-AAA further accesses the access service network.
  • the gateway queries the network address of the Anchor ASN GW, and continues to query the network address of the Serving ASN GW and the LCF where the target MS is currently located through the Anchor ASN GW. website address. That is, the V-LCS Server can query the network address of the Serving ASN GW and the network address of the LCF where the target MS is currently located through the Anchor ASN GW.
  • Step 310 The V-PF or V-AAA returns the network address information of the LCF where the target MS is currently located to the V-LCS Server.
  • Step 311 The V-LCS Server sends a positioning control request message (Loca ioReprot Control) to the LCF, where the message includes the content of the request, the quality of service request, and the private verification result of the LCS Cl ient.
  • a positioning control request message (Loca ioReprot Control)
  • the address information returned by the V-PF to the V-LCS Server may be the network address of the Anchor ASN GW, and the address information returned by the V-AAA to the V-LCS Server may be the Anchor ASN GW.
  • the V-LCS Server sends a location control control request message to the ASN GW where the Anchor ASN or the Anchor Authent ica tor is located.
  • the message is forwarded by the ASN GW where the Anchor ASN GW or the Anchor Authent ica tor is located to the LCF where the target MS is currently located.
  • Step 312 After receiving the positioning report control request message, the LCF performs a positioning operation on the target MS.
  • the LCF first needs to comprehensively consider its own capability, the target MS's capability and the quality of service requirements (QoS requirements), and then select the appropriate positioning method to physically locate the target MS. For example, when the LCF uses the hybrid positioning method, the physical location of the target MS is first selected according to the QoS requirement. If the positioning operation fails or the obtained positioning result fails to meet the requirements, the LCF selects a positioning. The method with lower precision physically locates the target MS. If it is still unsuccessful, the LCF continues to select the method with lower positioning accuracy to physically locate the target MS until the QoS-compliant positioning result or LCS Client is required. The positioning time is reached.
  • QoS requirements quality of service requirements
  • Step 313 The LCF reports the final positioning result to the V-LCS Server, and the content of the positioning result is consistent with the QoS requirement in the positioning report control request message.
  • Step 314 The V-LCS Server returns a location service response message to the H-LCS Server (Loca t ion Service Response), the message carries the positioning result of the target MS.
  • the V-LCS Server only carries the location result of the target MS in the location service response message when the corresponding positioning result satisfies the requirement of the QoS level; otherwise, the V-LCS Server passes The location service response message sends the corresponding error message to H-LCS Serve
  • Step 315 The H-LCS Server performs private verification on the positioning result of the target MS according to the user subscription information of the target MS. This time, the private verification is to determine whether the positioning result is allowed to be sent to the positioning client 20, because the target MS may define different privacy settings for different geographical locations, and therefore, the private authentication is performed again. At the same time, the H-LCS Server records the positioning result and the corresponding expiration date after the positioning result of the target MS is verified by private.
  • Step 316 The H-LCS Server returns a location service response message to the R-LCS Server, where the message carries the location result of the target MS.
  • Step 317 The R-LCS Server returns a location service response message to the LCS Client, and sends the location result information of the target MS to the LCS client.
  • any two networks in the Requesting Network, Home Network, and Visiting Network may be the same network, or three networks may be the same network. In this case, the corresponding two networks or three in the foregoing embodiment.
  • the information exchange between the networks does not exist.
  • the port is: When the Visiting Network and the Home Network are the same network (that is, the target MS handles the non-roaming state), then the H-LCS Server receives the location service request message. When the network address of the LCF where the target MS is currently located is obtained, the location report control request message is directly sent to the LCF, and so on.
  • the target MS (hereinafter referred to as MS) can also obtain its own physical location information; and after obtaining the corresponding positioning result, send the positioning result to another client (hereinafter referred to as Client).
  • the positioning operation is called a Mobile Origination - Location Request (MO-LR).
  • the MS when the MS is in a roaming state, it acquires its physical location information.
  • the detailed process is as follows:
  • Step 350 The MS sends a location service invocation message (LCS Invoke) to the current LCF.
  • the message contains the Q0S requirement.
  • Step 351 The LCF forwards the location service call message sent by the MS to the selected V-LCS Server.
  • Step 353 The H-LCS Server performs the authority verification on the MS according to the user subscription information of the MS, and returns the result of the full certificate to the V-LCS Server.
  • Step 354 After the MS passes the privilege verification, the V-LCS Server sends a location report control request message to the LCF where the MS is currently located, where the message includes the content requested by the MS, the QOS request, and the privilege verification result of the MS.
  • Step 355 The LCF selects an appropriate positioning method to initiate a positioning operation on the MS according to the request content of the MS, the QOS requirement, the capability of the MS and the ASN network.
  • Step 356 After obtaining the positioning result of the MS that satisfies the QoS requirement, the LCF sends the positioning result to the MS and the V-LCS Server.
  • the positioning result of the MS is sent to the client, and the LCF sends the positioning result, the validity period of the positioning result, the accuracy indication, and the QoS requirement of the MS to the client.
  • Step 357 The V-LCS Server forwards the positioning result and related information of the MS to the H-LCS Server of the MS, and records the positioning result and related information by the H-LCS Server.
  • Step 358 The H-LCS Server sends the positioning result and related information of the MS to the LCS Server where the client is currently located.
  • Step 359 The LCS Server sends the positioning result and related information of the MS to the corresponding client.
  • Step 361 The LCS Server forwards the response message to the H-LCS Server of the MS.
  • Step 362 The H-LCS Server forwards the response message to the V-LCS after recording the response message.
  • Step 363 After the V-LCS Server records the response message, the corresponding positioning information processing result is sent to the LCF.
  • Step 364 The LCF forwards the positioning information processing result to the MS.
  • the LCF sends an authentication request to the H-LCS Server directly after receiving the location service invocation message, when the location and the home network are in the non-roaming state.
  • the LCF after obtaining the positioning result of the MS, the LCF directly sends the positioning result to the H-LCS Server, and so on.
  • the user can use the location service and the location-based service at any time and any place, thereby improving the user's experience of using the wireless service and satisfying the demand for the location service; on the other hand, the operator can Providing a variety of value-added services through location services also increases user satisfaction and loyalty to a certain extent.
  • the spirit and scope of the invention Thus, it is intended that the present invention cover the modifications and variations of the inventions

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

Procédé de fourniture d'un service de localisation à Interopérabilité mondiale pour système d'accès à micro-ondes, basé sur les opérations suivantes: envoi du premier message de demande pour acquisition de l'emplacement physique d'un terminal cible du client localisateur au serveur de localisation dans le réseau de visite où se trouve le terminal cible; envoi du second message de demande d'acquisition de l'emplacement physique du terminal cible du serveur de localisation à l'entité à fonction de commande de localisation où se trouve le terminal cible conformément à l'information de routage; exécution de l'opération de localisation sur le terminal cible par l'entité à fonction de commande de localisation; et renvoi du résultat de la localisation vers le côté du client localisateur. Dans ses divers modes de réalisation, la présente invention concerne principalement l'interopérabilité mondiale pour système d'accès par micro-ondes.
PCT/CN2008/070040 2007-01-26 2008-01-08 Procédé, dispositif et système de fourniture de service de localisation WO2008092392A1 (fr)

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