WO2006017977A1 - Procede de mise en oeuvre de localisation continue dans les services bases sur la localisation - Google Patents
Procede de mise en oeuvre de localisation continue dans les services bases sur la localisation Download PDFInfo
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- WO2006017977A1 WO2006017977A1 PCT/CN2005/001174 CN2005001174W WO2006017977A1 WO 2006017977 A1 WO2006017977 A1 WO 2006017977A1 CN 2005001174 W CN2005001174 W CN 2005001174W WO 2006017977 A1 WO2006017977 A1 WO 2006017977A1
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- positioning
- location
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- mobile station
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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
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/50—Network services
- H04L67/52—Network services specially adapted for the location of the user terminal
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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
Definitions
- the present invention relates to a mobile communication network system, and more particularly to a method for implementing continuous positioning by switching a positioning entity in a location-based service. Background technique
- LBS Location Based Services
- location service also known as mobile location service or location service
- the application of the location service can be classified into several types: location trigger application, location information application, tracking application, and rescue application.
- FIG. 1 is a network structure diagram of a positioning system based on a user plane of an existing mobile communication network system.
- the positioning system includes traditional network entities and newly added entities.
- the former mainly includes a mobile station, a mobile switching center and a home location register, and the latter mainly includes a mobile positioning center, a positioning entity, and a positioning service client.
- the mobile station is a user equipment of the positioning service, and the main function is to provide measurement information related to the positioning of the mobile terminal, and at the same time complete the application implementation of the partial positioning service.
- the mobile positioning center is the core entity of the positioning service implementation.
- the main functions are to control the positioning process, interact with various entities, and store and provide the user's location information.
- the function of the positioning entity is mainly to process the information sent by the mobile station to the network side, thereby calculating the location of the mobile terminal and providing auxiliary positioning data for the positioning of the mobile station.
- the location service client is a service application entity, which acquires the location of the user through the mobile location center, and then provides different location services according to the location of the user. 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 a TCP/IP network.
- the communication between the mobile positioning center and the mobile switching center and the home location register is performed through the SS7 network.
- two or more entities in a network structure can be combined into one entity.
- the existing positioning method can refer to China Unicom industry standard "800MHz CDMA digital cellular mobile communication network V2 positioning service user plane related equipment technical requirements", "CDMA IX digital cellular shift Mobile Communication Network Mobile Station Specification and International Standard "ANSI TIA/EIA-IS-801 Position Determination Service Standard for Dual Mode Separate Spectrum Systems”.
- the positioning service system has multiple mobile positioning centers and multiple positioning entities in the network.
- a positioning entity stores base station data in a certain area, and the GPS (Global Positioning System) satellite reference receiving device of the positioning entity generally covers a range of about 600 kilometers.
- the mobile station needs to continuously download the auxiliary positioning data from the positioning entity side to perform position measurement and calculation.
- the selection of the positioning entity is first performed.
- the positioning entity After the positioning entity that performs the positioning interaction is selected, the positioning entity will not be switched during the continuous positioning process, which will cause the mobile station to roam to another area of the positioning entity during the movement, and the originally selected positioning entity does not Then, the base station data of the area where the mobile station is located or the GPS satellite reference receiving device of the positioning entity no longer serves the area where the mobile station is located. At this time, the mobile station will not obtain the necessary auxiliary positioning information, resulting in lower positioning accuracy and even positioning failure.
- the present invention provides a method for implementing continuous positioning in a location-based service, where a mobile positioning center selects an interactive positioning entity by a location where the mobile station is currently located, wherein the mobile entity changes after the positioning entity changes.
- the positioning center sends a geographic information request message to the new positioning entity to implement switching to the positioning entity, and the mobile station switches the positioning entity and performs location data interaction with the new positioning entity.
- the mobile positioning center determines that the positioning entity changes through the wireless cell parameter in the location report request message sent by the mobile station. And select the corresponding positioning entity.
- the wireless cell parameter is a system identification number, a network identification number, a base station identifier, a mobile switch identification number, or a network name.
- the above method for implementing continuous positioning in a location-based service wherein the mobile station performs handover of a positioning entity according to addressing information of a new positioning entity in a location report response message.
- the above method for implementing continuous positioning in a location-based service wherein the addressing information is an IP address and a port number of a positioning entity, or a URL.
- the foregoing method for implementing continuous positioning in a location-based service, wherein the positioning entity changes includes the following steps:
- Step 111 The mobile positioning center selects a new positioning entity request by using the wireless cell parameter, and determines that the new positioning entity is different from the original positioning entity.
- Step 112 The mobile positioning center initiates a cancel positioning message to the original positioning entity.
- Step 113 The original positioning entity receives the cancel positioning message, cancels the location data interaction, and returns to the mobile positioning center to cancel the positioning response message;
- Step 114 The mobile positioning center sends a geographic information request message to the new positioning entity.
- Step 115 The new positioning entity determines that the location session can be currently performed, and returns a mobile location center geographic information reply message.
- Step 116 The mobile positioning center returns a location report response message to the mobile station, where the location report response message includes an IP address and a port number of the new positioning entity.
- Step 117 After receiving the location report response message, the mobile station performs the interaction of the IS801 location data with the new positioning entity by using the IP address and the port number, and re-downloads the auxiliary positioning data.
- Step 118 The new positioning entity returns a geographic information response message to the mobile positioning center.
- Step 119 The mobile station performs location calculation, and reports a location report request message to the mobile positioning center.
- Step 120 The mobile positioning center determines that the selected positioning entity has not changed, and returns a location report response message to the mobile station.
- Step 121 The mobile positioning center sends the location result of the mobile station to the positioning client by using a positioning request report message;
- Step 117, step 118 is repeated according to the need of assisting the positioning data downloading;
- Steps 119, 120 and 121 are performed cyclically.
- Step 101 The positioning service client initiates a positioning request to the mobile station to the mobile positioning center, ⁇ , .
- Step 102 The mobile positioning center sends a short message to the mobile station to trigger a positioning request.
- Step 104 The mobile positioning center allocates a task identifier, and returns a positioning client location request reply message.
- Step 105 The mobile positioning center sends a geographic information request message to the original positioning entity.
- Step 106 The original positioning entity returns a mobile positioning center geographic information reply message.
- Step 107 The mobile positioning center returns a mobile station start location request response message, where the start location request response message includes an IP address and a port number of the original positioning entity.
- Step 108 The mobile station performs IS801 location data interaction with the original positioning entity according to the IP address and port number of the original positioning entity, and downloads the auxiliary positioning data.
- Step 109 The positioning entity returns a geographic information response message to the mobile positioning center.
- Steps 108 and 109 are repeated according to the needs of the auxiliary positioning data downloading.
- Step 110, step 119, step 120 and step 121 are performed cyclically.
- the method for implementing continuous positioning in a location-based service where the method for continuously locating is initiated by a mobile station, and the geographic information response message returned by the positioning entity to the mobile positioning center indicates that the mobile station is not in the service scope of the positioning entity.
- the mobile positioning center initiates a message for notifying the mobile station to switch, and determines that the positioning entity changes by the wireless cell parameter in the start location request message sent by the mobile station after receiving the notification of the handover message, and selects the corresponding positioning entity.
- the wireless cell parameter is a system identification number, a network identification number, a base station identifier, a mobile switch identification number, or a network name.
- the above method for implementing continuous positioning in a location-based service wherein the mobile station performs handover of a positioning entity according to addressing information of a new positioning entity in a location report response message.
- the above method for implementing continuous positioning in a location-based service wherein the addressing information is an IP address and a port number of a positioning entity, or a uniform resource locator.
- the foregoing method for implementing continuous positioning in a location-based service, wherein the positioning entity changes includes the following steps:
- Step 209 The geographic information response message returned by the original positioning entity to the mobile positioning center, where the geographic information response information includes a flag that the mobile station goes out of the service area, and the mobile positioning center sends a cancellation request message to the original positioning entity.
- Step 210 The original positioning entity receives the cancel positioning request message, cancels the location data interaction, and returns the mobile positioning center cancel positioning response message.
- Step 213 The mobile positioning center sends a geographic information request message to the new positioning entity.
- Step 214 The new positioning entity determines that the location session can be currently performed, and returns a mobile location center geographic information reply message.
- Step 215 The mobile positioning center returns a start location request process response message to the mobile station.
- Step 216 The mobile station receives the interaction with the new positioning entity to perform IS801 location data, and re-downloads the auxiliary positioning data.
- Step 217 The new positioning entity returns a geographic information response message to the mobile positioning center. Steps 216 and 217 are repeated according to the need of the auxiliary positioning data downloading.
- Step 201 The mobile station initiates a start location procedure request message.
- Step 202 The mobile positioning center sends a geographic information request message to the original positioning entity.
- Step 203 The original positioning entity returns a mobile positioning center geographic information reply message.
- Step 204 The mobile positioning center returns a mobile station start location request response message, where the start location request response message includes an IP address and a port number of the original positioning entity.
- Step 205 The mobile station performs IS801 location data interaction with the original positioning entity according to the IP address and port number of the original positioning entity, and downloads the auxiliary positioning data.
- Step 206 The original positioning entity returns a geographic information response message to the mobile positioning center, and returns a location result.
- Step 207 The mobile station and the original positioning entity perform an additional location data interaction session until the positioning is completed.
- Step 208 The original positioning entity returns a geographic information response message to the mobile positioning center, and returns a location result.
- Step 207 and step 208 are repeatedly performed according to the need of the auxiliary positioning data downloading.
- the method for implementing continuous positioning in the location-based service of the present invention can ensure that the positioning entity provides the base station auxiliary information of the current location of the mobile terminal by increasing the process of the location entity handover, and ensures that the current location of the mobile terminal is in the positioning entity GPS satellite reference reception. Within the coverage of the equipment, the accuracy and success rate of continuous positioning are greatly enhanced.
- 1 is a network structure of a user plane-based positioning service in a mobile communication network
- FIG. 2 is a schematic flowchart of a method for switching a positioning entity that initiates a tracking continuous positioning process on the network side of the present invention
- FIG. 3 is a schematic diagram of a process in which a network-side initiated tracking and continuous positioning process does not implement a positioning entity handover
- FIG. 4 is a schematic flowchart of an embodiment of a network-side initiated tracking and continuous positioning process to implement a positioning entity handover
- FIG. 5 is a schematic flow chart of a method for switching a positioning entity of a mobile phone to initiate a tracking continuous positioning process according to the present invention
- FIG. 6 is a schematic diagram of a process in which a mobile phone initiates a tracking continuous positioning process without performing a positioning entity handover
- FIG. 7 is a schematic flowchart of a mobile phone initiating a tracking continuous positioning process to implement a positioning entity handover.
- FIG. 2 is a schematic flow chart of a method for switching a positioning entity that initiates a tracking continuous positioning process on the network side of the present invention, and includes the following steps:
- Step S1 the mobile positioning center receives the location report request message of the mobile station, and selects a corresponding positioning entity according to the wireless cell parameter; in the continuous positioning process, the mobile station continuously sends a location report message to the mobile positioning center, where the message carries the wireless a cell parameter, the mobile positioning center selects a corresponding positioning entity by using a wireless cell parameter, where the wireless cell parameter may be a network parameter such as a system identification number, a network identification number, a base station identifier, a mobile switch identification number, and a network name;
- Step S2 determining whether the selected positioning entity is the same as the original positioning entity, if the same, proceeding to step S6, if different, proceeds to step S3;
- Step S3 The mobile positioning center performs a positioning entity handover, and sends a geographic information request message to the new positioning entity, and the new positioning entity determines that the current resource is available, and prepares to perform location information interaction with the mobile station;
- Step S4 The mobile positioning center returns a mobile station location report response message, where the location report response message includes addressing information of the new positioning entity, where the addressing information may be an IP address and a port number of the positioning entity, or a URL of the positioning entity. And other performance formats;
- Step S5 The mobile station determines that the positioning entity switches, and the mobile station initiates positioning information interaction with the new positioning entity.
- Step S6 The mobile positioning center returns a response report message to the mobile station location, and performs positioning information interaction with the original positioning entity.
- FIG. 3 is a schematic diagram of a process in which a network-side initiated tracking continuous positioning process does not implement a positioning entity handover, in which a mobile positioning center and a mobile station always perform location information interaction with a first selected positioning entity without performing a positioning entity.
- the switch includes the following steps:
- Step S301 The positioning service client initiates a positioning request message to a mobile station to the mobile positioning center, and performs tracking type continuous positioning on the mobile station.
- Step S302 The mobile positioning center sends a short message to the mobile station to trigger a positioning request.
- Step S303 The mobile station initiates a location location process request message to the mobile location center.
- Step S304 The mobile location center allocates the task identifier of the location, and returns a location client request response message.
- Step S305 The mobile positioning center selects a corresponding positioning entity, and sends a geographic information request message to the positioning entity.
- Step S306 the positioning entity returns a mobile location center geographic information reply message, indicating that the positioning can be started;
- Step S307 the mobile positioning center returns a mobile station to initiate a positioning request response message, and returns an IP address and a port number, or a URL of the positioning entity;
- Step S308 the mobile station interacts with the positioning entity to perform IS801 location data, and downloads the auxiliary positioning data.
- Step S309 the positioning entity returns a geographic information response message to the mobile positioning center.
- Step S310 the mobile station performs location calculation, and reports the location result and the wireless cell and the like to the mobile positioning center by using the location report request message;
- Step S311 the mobile positioning center receives the location report request message, and returns a location report response message to the mobile station for confirmation;
- Step S312 the mobile positioning center sends the location result of the mobile station to the positioning client by using a positioning request report message
- step S313, step S308, step S309, step S310, step S311 and step S312 are continuously repeated.
- Step S308 and step S309 are repeatedly executed according to the requirement of the auxiliary positioning data downloading. When the auxiliary positioning data is not required to be downloaded, the repeated execution is not required.
- FIG. 4 is a schematic flowchart of an embodiment of a network-side initiated tracking continuous positioning process in which a positioning entity handover is implemented, including the following steps:
- Step S401 The positioning service client initiates a positioning request message to a mobile station to the mobile positioning center, and performs tracking type continuous positioning on the mobile station.
- Step S402 The mobile positioning center sends a short message to the mobile station to trigger a positioning request.
- Step S403 The mobile station initiates a location location procedure request message to the mobile location center.
- Step S404 The mobile location center allocates the task identifier of the location, and returns a location client request response message.
- Step S405 The mobile positioning center selects a corresponding positioning entity, and sends a geographic information request message to the positioning entity.
- Step S406 the positioning entity returns a mobile location center geographic information reply message, indicating that the positioning can be started;
- Step S407 the mobile positioning center returns a mobile station start positioning request response message, indicating an IP address and a port number, or a URL of the positioning entity;
- Step S408 The mobile station interacts with the positioning entity to perform IS801 location data, and downloads the auxiliary positioning data.
- Step S409 the positioning entity returns a geographic information response message to the mobile positioning center.
- Step S410 the mobile station performs location calculation, and reports the location result and the wireless cell and the like to the mobile positioning center by using the location report request message;
- Step S411 The mobile positioning center selects a positioning entity by using the carried wireless cell parameter in the location report request message, and if the selected positioning entity is the same as the original positioning entity, returns a location report response to the mobile station;
- Step S412 The mobile positioning center sends the location result of the mobile station to the positioning client by using a positioning request report message
- Step S413 the mobile station performs location calculation, and reports the location result and the wireless cell and the like to the mobile positioning center by using the location report request message;
- Step S414 after a period of time, the mobile positioning center judges that the mobile station roams to another positioning entity area by using the wireless cell parameter in the location report request message, and the mobile positioning center passes the location report.
- the carrying radio cell parameter selection positioning entity in the message indicates that the selected positioning entity is different from the original positioning entity;
- Step S415 The mobile positioning center initiates a cancel positioning message to the original positioning entity.
- Step S416 the original positioning entity receives the cancel positioning message, cancels the location data interaction, and returns to the mobile positioning center to cancel the positioning response message;
- Step S417 The mobile positioning center sends a geographic information request message to the new positioning entity.
- Step S418 The new positioning entity determines that the location session can be currently performed, and returns a mobile location center geographic information reply message.
- Step S419 the mobile positioning center returns the IP address and port number of the newly located entity, or the URL in the location report response message, to the mobile station;
- Step S420 After receiving the location report response message, the mobile station determines that the location entity in the location report response is different from the original location entity, and the mobile station interacts with the new location entity to perform IS801 location data, and re-downloads the auxiliary location data.
- Step S421 the new positioning entity returns a geographic information response message to the mobile positioning center;
- Step S422 the mobile station continuously performs the location calculation by itself, and continuously reports the location result and the wireless cell and the like to the mobile positioning center through the location report message;
- Step S423 the mobile positioning center determines that the selected positioning entity has not changed through the wireless cell parameter, returns a location report response message to the mobile station, and if there is a change, returns to step S415;
- Step S424 the mobile positioning center sends the location result of the mobile station to the positioning client by using a positioning request report message;
- step S425 step S420, step S421, step S422, step S423, and step S424 are continuously repeated.
- Step S420 and step S421 are repeatedly performed according to the requirement of the auxiliary positioning data downloading.
- the repeated execution is not required.
- FIG. 5 is a schematic flowchart of a method for switching a positioning entity that initiates a tracking continuous positioning process by the mobile terminal of the present invention, and specifically includes the following steps:
- Step S10 During the continuous positioning process, the positioning entity continuously returns a geographic information response message to the mobile positioning center, where the message indicates that a mobile station in the mobile positioning center is not in the service scope of the positioning entity, and the mobile positioning center initiates a message notifying the mobile station to switch.
- the mobile station After receiving the message, the mobile station initiates a location request message, where the message carries the wireless cell parameter, and the mobile positioning center passes the wireless cell parameter.
- the wireless cell parameter may be a system identification number, a network identification number, a base station identifier, a mobile switch identification number, a network name, and the like;
- Step S20 determining whether the selected positioning entity is the same as the original positioning entity, if the same, proceed to step S60, if not, proceed to step S30;
- Step S30 The mobile positioning center performs a positioning entity handover, and sends a request message for geographic information to the new positioning entity. If the new positioning entity determines that the current resource is available, it prepares to perform location data interaction with the mobile station.
- Step S40 The mobile positioning center returns a mobile station start positioning process response message, where the start positioning process response message includes addressing information of the new positioning entity, where the addressing information may be an IP address and a port number of the positioning entity, or a positioning entity URL and other presentation formats;
- Step S50 The mobile station initiates positioning information interaction with the new positioning entity.
- Step S60 The mobile positioning center returns to the mobile station to initiate a positioning process response message, and performs positioning information interaction with the original positioning entity.
- FIG. 6 is a schematic diagram of a process in which a mobile phone initiates a tracking continuous positioning process without performing a positioning entity handover.
- the mobile positioning center and the mobile station always perform location information interaction with the first selected positioning entity without performing positioning entity. Switching specifically includes the following steps:
- Step S601 The mobile station initiates a request for starting a positioning process.
- Step S602 The mobile positioning center selects a corresponding positioning entity, and sends a geographic information request message to the positioning entity.
- Step S603 the positioning entity returns a mobile location center geographic information reply message, indicating that the positioning can be started;
- Step S604 The mobile positioning center returns a mobile station start positioning request response message, indicating an IP address and a port number of the positioning entity.
- Step S605 The mobile station interacts with the positioning entity to perform IS801 location data, and downloads the auxiliary positioning data.
- Step S606 the positioning entity returns a geographic information response message to the mobile positioning center, and returns a location result;
- Step S607 the mobile station and the positioning entity perform an additional location data interaction session, as needed, until the final positioning is completed;
- Step S608 the positioning entity returns a geographic information response message to the mobile positioning center, and returns the location. The result.
- Step S701 A mobile station initiates a location positioning process request message
- Step S702 The mobile positioning center selects a corresponding positioning entity, and sends a geographic information request message to the positioning entity.
- Step S703 the positioning entity returns a mobile location center geographic information reply message, indicating that the positioning can be started;
- Step S704 the mobile positioning center returns a mobile station to initiate a positioning request response, indicating an IP address and a port number of the positioning entity, or a URL address;
- Step S705 The mobile station interacts with the positioning entity to perform IS801 location data, and downloads the auxiliary positioning data.
- Step S706 the positioning entity returns a geographic information response message to the mobile positioning center, where the geographic information response information includes a flag that the mobile station goes out of the service area;
- Step S707 The mobile positioning center initiates a cancel positioning request message to the original positioning entity.
- Step S709 The mobile positioning center sends a message for notifying the handover to the mobile station, instructing the mobile station to perform a "PDE handover";
- Step S710 The mobile station initiates a new start positioning process request.
- Step S711 The mobile positioning center determines that the selected positioning entity is different from the original positioning entity by starting the wireless cell parameter selection positioning entity in the positioning process request message, and the mobile positioning center sends a geographic information request message to the new positioning entity.
- Step S712 the new positioning entity determines that the location session can be currently performed, and returns a mobile location center geographic information reply message;
- Step S713 the mobile positioning center encapsulates the IP address and the port number of the new positioning entity in the start location request process response message, and returns the result to the mobile station.
- Step S714 After receiving the start location request process response message, the mobile station determines that the positioning entity in the response request process response message is different from the original positioning entity, and then the mobile station interacts with the new positioning entity to perform IS801 location data, Download assisted targeting data. Step S715, the new positioning entity returns a geographic information response message to the mobile positioning center. In step S716, step S714 and step S715 are repeated according to the need of the auxiliary positioning data downloading. Step S716 is repeatedly performed according to the requirement of the auxiliary positioning data downloading. When the auxiliary positioning data is not required to be downloaded, it is not required to be repeatedly executed.
- the mobile station is in a state of constant movement.
- the area where the mobile station moves may have a handover of the positioning entity jurisdiction, ranging from the area of one positioning entity to the area of another positioning entity.
- the positioning of the GPS (Global Positioning System) satellite reference receiving device of the positioning entity is generally around 600 kilometers. If the switching of the positioning entity is not performed, the positioning accuracy is lowered or even the positioning fails when the positioning entity is exceeded.
- the mobile station re-downloads the auxiliary positioning data by performing the switching of the positioning entity, thereby improving the positioning accuracy and the positioning success rate.
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CNB2004100417764A CN100359987C (zh) | 2004-08-17 | 2004-08-17 | 一种在连续定位时进行定位实体切换的方法 |
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