CN101083796A - Location service providing system and method for providing triggered location request service - Google Patents
Location service providing system and method for providing triggered location request service Download PDFInfo
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Abstract
Disclosed are a location service providing system and a method for providing a triggered location request service. An H-SLP sets a priority order of a plurality of positioning methods which a target terminal supports according to a set priority order set condition and transmits priority order information according to respective positioning methods to the target terminal. Further, the target terminal may receive information about the positioning methods including the priority order and select a positioning method having the highest priority order among the positioning methods, which can be used in its current electric wave environment. Moreover, the H-SLP and the target terminal may calculate a location of the target terminal according to a positioning method that the target terminal has selected. Accordingly, although it is difficult to calculate the location of the target terminal according to the positioning method that the target terminal has selected, a location service of the target terminal can be continuously provided.
Description
Technical field
The present invention relates to positioning service system and method thereof are provided, more particularly, the positioning service that is used to provide the triggered location request to serve (triggered location request service) is provided provides system and method.
Background technology
Along with the increase of demand, used the location of portable terminal that various positioning services are provided, and realized positioning service is expanded to the exploitation of portable terminal various location related services based on the location.Further, the basis that is expanded into the communication service of the 4th generation of expectation positioning service.
In recent years, provide triggered location request service as positioning service.In triggered location request service, periodicity or aperiodicity ground double counting target terminal position value.If the target terminal position value satisfies predetermined condition, the fact that corresponding incident then will take place offers secure user plane location agency (secure user plane location agent).
Exhibition Fig. 1 is explained conventional trigger Location Request service providing method.Fig. 1 is the flow chart that is used to describe conventional trigger Location Request service providing method.With reference to Fig. 1, security plane location agency (below be called " SUPLAGENT ") 104 uses positioning reporting request (MLP TLRR) that the running fix agreement triggers from original position (home) SUPL locating platform (H-SLP) 100 request triggered location requests services in step 106.
Subsequently, when H-SLP 100 when SUPL AGENT 104 receives MLP TLRR message, it advances to step 108, and judges the routing iinformation of target terminal 102.That is to say that H-SLP 100 judges whether target terminal 102 is being roamed and whether target terminal 102 uses SUPL.
According to the judged result of the routing iinformation of target terminal, H-SLP 100 advances to step 110, and initial (INIT) message (initial alignment service request information) of SUPL is sent to target terminal 102.Here, SUPL INIT message comprise SESSION_ID (it is the ID that is used to distinguish the message of H-SLP 100 and target terminal 102), indication localization method localization method (POSMETHOD), trigger the generation of type indicator, acting server (proxy) and the incident of indication or the non-acting server mode indicators of the Rule of judgment that do not take place.In addition, SUPL INIT message comprises the alignment quality (QoP) of the measurement grade of the locating information that indication is asked.
And, when target terminal 102 when H-SLP 100 receives SUPL INIT message, target terminal 102 advances to step 112, and whether definite H-SLP 100 is in the acting server pattern.Target terminal 102 is connected to the data network such as packet data network or Circuit Switching Data Network network according to the check result of acting server pattern.
When target terminal 102 was connected to H-SLP 100 by data network, it was sent to H-SLP 100 in the SUPL TRIGGERRED START message that step 114 will be used to begin triggered location request service.Here, SUPL TRIGGERED START message comprises the hash (ver) and the position identifiers (ID) of SEEION_ID, (terminal that SUPL enables) SET ability, received SUPL INIT message.SESSION_ID is the identifier that is used to distinguish the message between H-SLP 100 and the target terminal 102.SET ability indication stationkeeping ability.Here, the SET ability comprises POSMETHOD information, promptly, about the auxiliary A-GPS (agps system) of SET or based on the information of the A-GPS of SET, about controlling (RRC) or telecommunications industry association (Telecommunication Industry Association, TIA)-801 information of and so on the location protocol that is associated such as radio resource location services protocol (RRLP), radio resource.Fig. 2 is the view that the example of POSMETHOD information is shown.
When H-SLP 100 received SUPL TRIGGERED START message, it compared location survey ability and included information in the SET of target terminal 102 ability, and determines any suitable localization method according to the result of this comparison.And H-SLP 100 advances to step 116, and will comprise that the SUP TRIGGERED RESPONSET message (triggered location request service response message) about the information of determined localization method is sent to target terminal 102.Subsequently, H-SLP 100 advances to step 118, and the positioning reporting that uses the running fix agreement to trigger obtains (MLP TLRA) notice SUPLAGENT 104 and received request to triggered location request service.Then, H-SLP100 transmits REQ_ID with as transaction id, carries out triggered location request service simultaneously.Therefore, H-SLP100 can stop the current data network with target terminal 102 and is connected.
Therefore, target terminal 102 advances to step 120, and judges whether the transmission condition of locating information satisfies.Subsequently, when information transmission condition satisfies, once more target terminal 102 is connected to data network, and target terminal 102 transmits locating information report message (SUPL POS REPORT message) in step 122.Here, SUPL POS REPORT message comprises SESSION_ID and position identifiers (LID).Therefore, H-SLP 100 and target terminal 102 advance to step 124, and calculate the position of target terminal 102.H-SLP 100 and target terminal 102 are according to the locating information of target terminal 102 and whether satisfy set QoP according to LID included in the SUPLPOS REPORT message and advance to step 124, and calculate the position of target terminal 102 by predetermined localization method.
When calculating the position of target 102, H-SLP 100 advances to step 126, and positioning reporting (MLP TLREP) message of using the running fix agreement to trigger is given SUPL AGENT 104 with the position message of target terminal 102.Subsequently, when the executive condition of the triggered location request service of being asked as SUP AGENT 104 satisfies, for example, target terminal 102 arrives ad-hoc location or the set positioning service time of implementation has stopped, and then H-SLP 100 and target terminal 102 stop triggered location request service.
Therefore, in conventional trigger Location Request service providing method, judge the generation of the incident that request for location services person's (that is, SUPL AGENT 104) is asked according to the condition that is provided with, and repeat reporting event generation result's process.Therefore, in conventional trigger Location Request service providing method, when H-SLP 100 when the beginning step is once selected any one in the included localization method from the SET ability of SUPL TRIGGERED START message, by reusing identical localization method obtains target terminal 102 till triggered location request end of service position.
In conventional method, only serve immediately in (immediate service) and obtain the position once in tradition.Yet, under the situation of triggered location request service, should be in the long period such as 24 hours or 72 hours calculating location periodically.This has changed the situation of target terminal.For example, when target terminal 102 uses global positioning system (GPS) to obtain the position, it can be moved to the position that does not receive gps signal.Otherwise when target terminal 102 uses range information such as the time of advent poor (TDOA) from cellular basestation (BS) when obtaining the position, its reception is less than the range information of 4 neighbor cells, and becomes the state that can not use the TDOA pattern.
Therefore, in this case, in the conventional trigger Location Request was served, in the time can not using the determined localization method in beginning step (step 114 and 116) of triggered location request service, triggered location request service generation was located wrong and is finished this service.As a result, SUPL AGENT 104 can not receive the service of required time.
Summary of the invention
Therefore, carried out this aspect to solve the problems referred to above that take place in the prior art, and the invention provides positioning service system is provided, so though target terminal can not use determined localization method in the different electric wave environment because of moving at execution triggered location request viability target terminal, this system can also provide triggered location request service continuously.
According to an aspect of the present invention, provide locating information that system is provided, it comprises: location-server, be used for providing the target terminal of service to receive the information of the position calculating method of this target terminal support from locating information, at least one position calculating method is sent to this target terminal, with when when this target terminal receives the information that is used for available at least localization method, select in the received localization method any one to calculate this target terminal position; And target terminal, the information that is used for the localization method that can support is sent to location-server, receive the information of at least a localization method of this location-server support from location-server, extracting and transmit the localization method that can use in the electric wave environment in the received information arrives this location-server and uses the selected localization method of this location-server that positioning service is provided.
According to another aspect of the present invention, be provided for providing service to offer the method for target terminal locating information, this method comprises: by location-server the initial alignment service request information is sent to target terminal; In response to this initial alignment service request information, will comprise that the locating information about the information of the localization method of target terminal support provides service beginning message to be sent to location-server by target terminal; To comprise the information of the localization method of supporting about target terminal in localization method by location-server, and comprise that locating information provides the locating information of service beginning message to provide service response message to send target terminal to; From the location provides at least one localization method included the service response message, select can be used in the localization method in the current electric wave environment, and will be sent to location-server about the information of selected localization method by target terminal; With the localization method that receives from target terminal, select any method, and settle accounts target terminal position by location-server according to selected localization method.
Description of drawings
In conjunction with the accompanying drawings, by following detailed description, above-mentioned and other aspects of the present invention, characteristics and advantage will become apparent, wherein:
Fig. 1 is a flow chart of describing conventional trigger Location Request service providing method;
Fig. 2 is the view that is illustrated in the conventional trigger Location Request service about the information example of localization method and parameter;
Fig. 3 is that the positioning service that illustrates according to embodiment of the present invention provides the flow chart that triggered location request service method is provided in the system;
Fig. 4 is the view that the example of the POSMETHOD_list that provides from H-SLP is shown according to the embodiment of the present invention;
Fig. 5 illustrates the block diagram that according to the embodiment of the present invention positioning service provides the structure of H-SLP in the system;
Fig. 6 is illustrated in the flow chart that the operation that H-SLP generation POSMETHOD_list is arranged in the system is provided according to the positioning service of embodiment of the present invention when target terminal receives SUPL TRIGGERED START message;
Fig. 7 illustrates the block diagram that according to the embodiment of the present invention positioning service provides the structure of the target terminal in the system;
Fig. 8 is illustrated in positioning service according to embodiment of the present invention to provide target terminal when target terminal receives POSMETHOD_list in the system to select the flow chart of the operation of the localization method that is fit to;
Fig. 9 provides the flow chart that is produced the operation of POSMETHOD_list in the system by H-SLP in the positioning service according to second embodiment of the invention; With
Figure 10 provides the flow chart of being selected to receive from H-SLP the operation of localization method included the next POSMETHOD_list in the system by locating terminal in the positioning service according to this aspect second execution mode.
Embodiment
Below, example embodiment of the present invention is described with reference to the accompanying drawings.In being described below, though at identical Reference numeral shown in the different accompanying drawings, they represent identical building block.Further, the various specific qualification that occurs in being described below such as the content of the particular value of group character, shown information, only be to be provided to help to understand the present invention, and for a person skilled in the art clearly, can not have to implement the present invention under the situation of these qualifications.Further, in of the present invention describing below,, will omit these detailed descriptions when the known function and the detailed description of configuration may make subject content of the present invention become not know the time that are combined in this.
For the ease of understanding the present invention better, will explain its basic principle now.In the present invention, H-SLP is provided with the priority orders that condition is provided with a plurality of localization methods of target terminal support according to the priority orders that is provided with, and according to corresponding localization method priority orders information is sent to target terminal.Further, target terminal can receive the information about localization method that comprises priority orders, and selects to have the localization method of limit priority order in its current electric wave environment in the operable localization method.And H-SLP and target terminal can calculate this target terminal position according to the localization method that this target terminal has been selected.Therefore, though be difficult to calculate target terminal position, still can provide the positioning service of target terminal continuously according to the localization method that target terminal has been selected.
Fig. 3 is that the positioning service that is illustrated in according to the embodiment of the present invention provides the flow chart that triggered location request service method is provided in the system.
With reference to Fig. 3, provide in the system in this positioning service, when SUPL AGENT 104 when step S304 uses MLP TLRR request from the triggered location request service of H-SLP 300, H-SLP 300 judges the routing iinformation (step 306) of target terminals 302.Subsequently, H-SLP 300 is sent to target terminal 302 (step 308) according to the judged result of the routing iinformation in the target terminal 302 with SUPL INIT message.
Subsequently, when target terminal 302 when H-SLP 300 receives SUPL INIT message, target terminal 302 checks whether H-SLP 300 are in the acting server pattern.In mode, H-SLP 300 is connected to data network such as packet data network or Circuit Switching Data Network network according to acting server pattern examination result.
Then, in step 310, when stopping H-SLP 300 to the connection of data network, target terminal 302 advances to step 312, and the SUPL TRIGGEREDSTART message that will be used to begin triggered location request service is sent to H-SLP 300.Here, SUPL TRIGGERED START message comprise SESSION_ID, SET ability, the hash (ver) and the position identifiers (LID) of the SUPL INIT message that received.SESSION_ID is the identifier that is used to distinguish the message between H-SLP 300 and the target terminal 302.SET ability indication stationkeeping ability.Here, the SET ability comprises localization method (POSMETHOD) and about the information of the location protocol that is associated.Fig. 2 shows the example of POSMETHOD information.
In step 312, when H-SLP 300 receives SUPL TRIGGERED START message, it is provided with condition according to the priority orders that is provided with and selects localization method included in the SUPL TRIGGERED START message and priority orders (step 314) is set.Otherwise H-SLP 300 selects to be used for not have at least a localization method of the terminal of priority orders.Here, H-SLP 300 can select that H-SLP 300 can provide included localization method in the SET of terminal ability in localization method.Further, H-SLP 300 can be according to checking out strategy and service quality (in this case such as service provider's preference, service provider, the precision of positional value or realize the needed time degree of localization method) and so on various conditions, select localization method.And H-SLP 300 can be provided with condition according to the priority orders that is provided with and select localization method with the order of limit priority order.
Here, strategy or the user according to the service provider selects and can differently the priority orders that is provided be provided with condition setting.That is to say, for example, can be according to precision, that is, QoP (position quality) determines the priority orders of localization method.Further, can determine the priority orders of localization method according to the needed time of location of needed cost or target terminal 302.H-SLP 300 is provided with the priority orders of localization method included in the SUPL TRIGGERED START message that target terminal 302 can support.
When the priority orders of localization method was set, H-SLP 300 produced and comprises priority orders information and about the SUPL TRIGGEREDRESPONSE message of the information of the localization method corresponding with priority orders.Subsequently, H-SLP 300 advances to step 316, and the SUPLTRIGGERED RESPONSE message that is produced is sent to target terminal 302.Here, can offer target terminal 302 in the mode of list mode POSMETHOD_list with priority orders information with about the information of the localization method corresponding with priority orders.In this case, shown in the step 316 of Fig. 3, will comprise that the SUPL TRIGGERED RESPONSE message of POSMETHOD_list is sent to target terminal 302.
Fig. 4 be illustrate according to the embodiment of the present invention priority orders information and the view of the example of the information of list mode, wherein the information of this list mode is about the localization method that provides and comprise in SUPL TRIGGEREDRESPONSE message, that is, provide next POSMETHOD_list from H-SLP.
Subsequently, H-SLP 300 advances to step 318, and notice SUPL AGENT 104: arrived the request that the triggered location request is served by MLP TLPA message sink.When target terminal 302 receives SUPL TRIGGERED RESPONSE message, its store location method and with corresponding localization method corresponding priorities order information, comprise SUPL TRIGGERED RESPONSE message.Therefore, H-SLP 300 can stop the current data network with target terminal 302 and is connected.
Then, target terminal 302 advances to step 320, and judges whether to satisfy locating information transmission condition.When satisfying locating information transmission condition, target terminal 302 advances to step 322, and the localization method that has the limit priority order in the localization method of selecting to be stored.Further, target terminal 302 checks whether can use selected localization method according to current selected localization method.In the time can using selected localization method, target terminal 302 advances to step 324, and SUPLPOS REPORT message is sent to H-SLP 300.Here, the priority orders information PRIORITY_INDEX of selected localization method and be included in the SUPLPOS REPORT message about the information of current selected localization method.
Yet, when the electric wave environment at step 322 target terminal 302 can not use selected localization method, have the localization method of inferior high priority in the localization method that target terminal 302 is selected to be stored for current selected localization method.Subsequently, target terminal 302 checks whether to use current selected localization method according to current selected localization method.
The localization method of supposing to have the limit priority order uses GPS and uses TDOA for its localization method with inferior high priority, and then target terminal 302 is selected use GPS and had the localization method of limit priority.Subsequently, target terminal 302 is checked the transmission and the accepting state of Current GPS signals, and if gps signal when being equal to, or greater than predetermined threshold, it can be used to the location.When gps signal is equal to, or greater than predetermined threshold, then target terminal 302 selects to use the localization method of GPS, and will send H-SLP 300 to about the information of the localization method that uses GPS with its corresponding priorities order information.Therefore, H-SLP 300 and target terminal 302 advance to step 326, and the position of calculating target terminal 302 according to the localization method that uses GPS.Subsequently, H-SLP 300 advances to step 328, and the locating information of target terminal 302 is offered SUPLAGENT 104.
In contrast, when gps signal during less than threshold value, target terminal 302 is selected for having the localization method of inferior high priority in proper order with current selected localization method corresponding priorities, that is, and and the localization method of use TDOA.Subsequently, target terminal 302 checks whether whether current selected localization method is the localization method that uses TDOA in current electric wave environment,, exist three sub-district BS that can obtain range information that is at least.When the suitable use of the current electric wave environment of target terminal 302 utilizes the localization method of TDOA, target terminal 302 selects to use the localization method of TDOA, and will be sent to H-SLP 300 about the information of the localization method that uses TDOA with its corresponding priorities order information.Therefore, H-SLP 300 and target terminal 302 advance to step 326, and the position of calculating target terminal 302 with the localization method that uses TDOA.Further, H-SLP 300 advances to step 328, and the locating information of target terminal 302 is offered SUPLAGENT 104.
Fig. 5 illustrates the block diagram that the structure of H-SLP 300 in the system is provided according to the positioning service of embodiment of the present invention.
With reference to Fig. 5, H-SLP 300 according to the embodiment of the present invention comprises that H-SLP controller 500, priority orders are provided with unit 504, HSL memory cell 502, H-SLP message generator 510, SUPLAGENT interface 506 and target terminal interface 508, and they all are connected to H-SLP controller 500.
The overall operation of H-SLP controller 500 each structure member of control and H-SLP 300.Specifically, when SUPL AGENT 104 requests were served from the triggered location request of H-SLP controller 500, H-SLP controller 500 was sent to target terminal 302 with SUPL INIT message, made it knows target terminal 302 which service of beginning.Here, SUPL INIT message comprises that the parameter to the request of triggered location request service takes place in indication.
When H-SLP controller 500 when target terminal 302 receives the information of the localization method that can support about target terminal 302, the priority orders that it is selected in localization method and the corresponding localization method of condition setting is set according to the priority orders that is provided with.Further, H-SLP controller 500 is sent to target terminal 302 with SUPLTRIGGERED RESPONSE message.Here, SUPL TRIGGEREDRESPONSE message comprises the information about the localization method that priority orders wherein is set.
Further, when satisfy according to from SUPL AGENT 104 to the request of triggered location request service condition is set the time, the information that H-SLP controller 500 receives about the target terminal 302 current localization methods that can use.And, H-SLP controller 500 calculates the position of target terminal 302 or transmits assist location information, that is, the orbit information of agps system (A-GPS) information and the current satellite that can communicate by letter with target terminal 302 is so that target terminal 302 can calculating location.
Further, the H-SLP memory cell 502 that is connected to H-SLP controller 500 comprises read-only memory (ROM), flash memory and random-access memory (ram).Among them, the ROM storage is used for the processing of H-SLP control 500 and the program of control, and various types of reference data.RAM provides working storage to H-SLP controller 500.Flash memory is provided for storing the zone of various types of storage data, and it can be updated.Further, flash memory can have and is used for storing the storage area of this information when it when target terminal 302 receives the information of the localization method that can support about target terminal 302.Flash memory can also have and is used for the storage area that the memory priority level is provided with conditional information in proper order, and described information is used to be provided with the priority orders that receives the localization method that comes from target terminal 302.Here, priority orders is provided with designer, network operator (enterpriser) or the user that conditional information can be H-SLP 300 and according to the corresponding priority level order priority orders that condition (for example, QoP preference or cost preference) has been a plurality of localization methods settings is set.Therefore, when H-SLP controller 500 when target terminal 302 receives the localization method that target terminal 302 can support, it is provided with conditional information with this localization method and priority orders and compares, so that priority orders between the two to be set.Below, storage is called ' location method information storage area ' 512 about the storage area of the H-SLP memory cell 502 of the information of localization method.The storage area that the memory priority level is provided with conditional information in proper order is called ' priority orders is provided with the conditional information storage area ' 514.
Further, priority orders is provided with unit 504 and for receiving the localization method that comes from target terminal 302 priority orders is set.Here, as previously mentioned, can select that priority orders differently is set according to service provider's strategy or user condition is set.
And H-SLP message generator 510 produces the various message that will be sent to SUPL AGENT 104 and target terminal 302 under the control of H-SLP controller 500.This message comprises SUPLTRIGGERED RESPONSE message.When the location method information that will be provided with its priority orders from H-SLP controller 500 was provided with unit 504 and is applied to H-SLP message generator 510 by priority orders, H-SLP message generator 510 produced the SUPL TRIGGEREDRESPONSE message that comprises this information.Here, the location method information that is set up of its priority orders can be included in the POSMETHOD_list pattern in the SUPL TRIGGERED RESPONSE message.Further, H-SLP message generator 510 in H-SLP controller 500, makes H-SLP controller 500 can send it to target terminal 302 the SUPL TRIGGERED RESPONSE messages application that produced.
And, SUPL AGENT interface 506 and target terminal interface 508 are provided for exchanging with SUPLAGENT the interface of various message, and the various types of message that are used for should being used for from H-SLP controller 500 are sent to SUPL AGENT 104 or target terminal 302 and interface target terminal 302.
Fig. 6 is that the positioning service that is illustrated in according to embodiment of the present invention provides in the system, when receiving SUPL TRIGGERED START message from target terminal, is produced the flow chart of operation of step 314 of Fig. 3 of POSMETHOD_list by H-SLP.Below, as shown in Figure 4, suppose the priority orders information of corresponding localization method and about the information of the localization method corresponding with priority orders, be included in by producing list mode information, that is, POSMETHOD_list is in the SUPLTRIGGERED RESPONSE message of acquisition.
With reference to Fig. 6, when H-SLP 300 when target terminal 302 receives SUPL TRIGGEREDSTART message, it advances to step 600, and extracts the information about localization method from received SUPL TRIGGEREDSTART message.Subsequently, H-SLP 300 advances to step 602 and selects at least a localization method, and by priority orders unit 504 is provided with the localization method that condition is arranged in the step 600 to be extracted according to the priority orders that is provided with priority orders is set.
Then, H-SLP 300 advances to step 604, and arranges information about the localization method that extracted in the step 600 to produce POSMETHOD_list according to corresponding priority orders.POSMETHOD_list comprises the priority orders information of the corresponding localization method that information (for example, various types of parameters and description, value etc.) about localization method and target terminal 302 can be supported.
Subsequently, H-SLP 300 advances to step 606, and produces the SUPL TRIGGERED RESPONSE message that comprises POSMETHOD_list by H-SLP message generator 510.Therefore, H-SLP 300 advances to step 316, and will comprise that the SUPLTRIGGERED RESPONSE message of POSMETHOD_list is sent to target terminal 302.Therefore, target terminal 302 can be discerned the set priority orders of H-SLP 300 that is used for its localization method that can support.
Fig. 7 is the block diagram that the structure of target terminal in the system is provided according to the positioning service of embodiment of the present invention.
With reference to Fig. 7, target terminal 302 comprises: terminal memory unit 702, localization method selector 708, terminal message generator 706 and H-SLP interface 704, they all are connected to terminal control unit 700.Here, the corresponding construction parts of terminal control unit 700 controlled target terminals 302, and ask to carry out the basic function of target terminal 302 according to the user.When terminal control unit 700 receives the SUPL INIT message that is used to begin triggered location request service, it will be included in about the information of the current localization method that can support of target terminal in the SUPL TRIGGEREDRESPONSE message in response to received SUPL INIT message, and it is transmitted.Further, when terminal control unit 700 received the POSMETHOD_list of the priority orders information that comprises the corresponding localization method that can support about the information and the target terminal 302 of localization method, it stored this POSMETHOD_list.
Subsequently, terminal control unit 700 is checked the condition that whether satisfies according to triggered location request service.Here, this condition comprises the expired time period of locating information that target terminal is provided is set that perhaps the indicating target terminal arrives the value of ad-hoc location.When satisfying condition, terminal control unit 700 loads the POSMETHOD_list that is stored to extract the priority orders information of corresponding localization method.And terminal control unit 700 selects to have in the localization method localization method of limit priority order, and checks and whether can use current selected localization method in current electric wave environment.
As the result who checks, when can not use current selected localization method in its current electric wave environment the time, terminal control unit 700 selects to have inferior high priority localization method in proper order for the priority orders of current selected localization method.Subsequently, terminal control unit 700 checks whether to use current selected localization method once more.In the time can't using current selected localization method, repeat aforesaid same operation.
By repeating this operation, when having selected the localization method that can be used in current electric wave environment, terminal control unit 700 will be sent to H-SLP 300 about information and its priority orders information of current selected localization method.Subsequently, terminal control unit 700 beginning SUPL POS SESSION, it calculates its position according to current selected localization method.SUPL POS SESSION indicating target terminal receives the process of assist location information and terminal control unit 700 its positions of calculating from H-SLP 300.Otherwise target terminal 302 is located information or assist location information offers H-SLP 300, thereby H-SLP300 can calculate the position of target terminal 302.
And, localization method selector 708 is with the order of the priority orders of H-SLP 300 settings, check whether the localization method that target terminal 302 can be supported can be used in the current electric wave environment, thus the localization method of selecting in current electric wave environment, to use, in localization method, have the set limit priority order of H-SLP 300.For this reason, localization method selector 708 further comprises localizing environment transducer 710.
Here, localizing environment transducer 710 checks whether the localization method of selecting according to priority orders can use in current electric wave environment.For example, when the localization method of current selection used GPS, localizing environment transducer 710 checked whether current received gps signal has the intensity of the threshold value of the setting of being equal to, or greater than.When the current gps signal that receives has intensity less than the threshold value that is provided with, then localizing environment transducer 710 notice localization method selectors 708: the current electric wave environment of target terminal 302 is not suitable for using GPS to come calculating location.
Therefore, localization method selector 708 is selected the localization method corresponding with the priority orders of the priority orders that is only second to current selected localization method.Further, localization method transducer 708 uses the localizing environment transducer to check whether to use current selected localization method.Therefore, localizing environment transducer 710 is identified in the localization method of the current selection that can be used in the current electric wave environment, and gives terminal control unit 700 with this advisory.The result, target terminal 302 and H-SLP 300 can be according to the localization methods that can be used in the current electric wave environment of target terminal 302, have the set limit priority order of H-SLP 300 in localization method, calculate target terminal position, and the locating information service is offered SUPL AGENT 104.
And the H-SLP memory cell 502 that is connected to H-SLP controller 500 comprises read-only memory (ROM), flash memory and random-access memory (ram).Among them, the ROM storage is used for the program of the processing and the control of terminal control unit 700, and various types of reference data.RAM provides the working storage of terminal control unit 700.Flash memory is provided for storing the zone of various types of storage data, and it can be updated.Further, flash memory can have the storage area that is used to store from the next POSMETHOD_list of H-SLP 300 receptions.Below, the storage area of storing POSMETHOD_list is called ' POSMETHOD_list storage area ' 712.
And flash memory is provided for storing the storage area of the information of the needed electric wave environment of corresponding localization method that can support about the information of localization method with about target terminal 302.Below, the information of the needed electric wave environment of corresponding localization method that will can support about the information of localization method with about target terminal 302 is called ' locating information '.The locating information that is used for corresponding localization method comprises the information about electric wave, and it can be used to every kind of localization method.
For example, in the localization method that uses GPS, the intensity of gps signal should be greater than being provided with threshold value, to calculate target terminal position.Therefore, under the situation of the localization method that uses GPS, locating information comprises the threshold value of GPS intensity and about the information of gps signal.Further, under the situation of the localization method that uses TDOA, should sensing greater than at least three signals that received of the signal strength signal intensity that is provided with.Therefore, in the localization method that uses TDOA, locating information comprises from the threshold value of the intensity of the next base station signal of sub-district BS reception and the essential base station signal of minimum number.
Therefore, target terminal 302 can recognition objective terminal 302 can be supported any localization method, and about the information of the electric wave environment that in corresponding localization method, needs.The storage area that will be used for the terminal memory unit 702 of store location information is called ' locating information storage area ' 706.
Further, terminal message generator 706 produces various types of message to exchange with H-SLP 300 under the control of terminal control unit 700.These message comprise SUPL POS REPORT message by localization method selector 708, this SUPL POS REPORT message comprises the information about the localization method that is suitable for current electric wave environment, that is, about the PRIORITY_INDEX and the POSMETHOD of particular position determination.Further, terminal message generator 706 will comprise that various types of message of SUPL POS REPORT message offer terminal control unit 700.
In addition, H-SLP interface 704 is provided for exchanging with H-SLP 300 interface of various types of message.Therefore, will receive various types of message of coming from H-SLP 300 and offer terminal control unit 700, perhaps will send H-SLP 300 to according to various types of message of the control of terminal control unit 700.
Fig. 8 is that the positioning service that is illustrated in according to the embodiment of the present invention provides in the system, and when target terminal 302 received POSMETHOD_list, target terminal was selected the flow chart of the operation of suitable localization method.
With reference to Fig. 8, when satisfying the condition that is provided with for triggered location request service is provided, target terminal 302 advances to step 800, and provides next POSMETHOD_list information from 712 loadings of POSMETHOD_list storage area from H-SLP300.Subsequently, target terminal 302 advances to step 802, and has the localization method of limit priority order in the localization method of the POSMETHOD_list that is chosen in the step 800 to be loaded.
Then, target terminal 302 advances to step 804, and loads and the corresponding locating information of current selected localization method from locating information storage area 712, that is, and and about the information of the electric wave environment of current selected localization method.Further, target terminal 302 judges according to the locating information that is loaded whether current selected localization method is suitable for current electric wave environment.
Result as the judgement of step 804, in the time can using selected localization method in the current electric wave environment at target terminal 302, target terminal 302 advances to step 806, and extracts the information about current selected localization method from POSMETHOD_list.The information extraction of target terminal 302 comprises the priority orders PRIORITY_INDEX of selected localization method, and the information POSMETHOD that comprises the various parameters of selected localization method as shown in Figure 2.Subsequently, target terminal 302 advances to step 808, and produces the SUPL POSREPORT message that comprises the information of being extracted.
Yet, when in step 804, judging that according to the locating information that is loaded current selected localization method is not suitable for current electric wave environment, target terminal 302 advances to step 810, and selects to have for priority orders the localization method of inferior high priority according to current selected localization method.And target terminal 302 advances to step 804, and loads on the locating information of current selected localization method correspondence from locating information storage area 706, that is, and and about the information of the electric wave environment of current selected localization method.Further, target terminal 302 judges according to the locating information that is loaded whether current selected localization method is fit to current electric wave environment.According to this judged result, target terminal 302 advances to step 806 or step 810, and with the order of priority orders set among the POSMETHOD_list, searches for the localization method that can use in current electric wave environment.Therefore, when satisfying the condition of serving according to the triggered location request, the present invention provides the locating information of target terminal 302 to SUPL AGENT 104 by the localization method according to current electric wave environment.Therefore, the present invention can provide the service of triggered location request more reliably.
And, embodiments of the present invention have been described, wherein H-SLP 300 is provided with the priority orders of the localization method of target terminal 302, and transfers them to target terminal 302 according to set priority orders.Yet the localization method that H-SLP 300 can not be set up priority orders is sent to target terminal 302.In this case, at least one localization method among the POSMETHOD_list that target terminal 302 can be selected to be used in current environment in the included localization method, and will offer H-SLP 300 about the information of at least one selected localization method.In this case, H-SLP 300 can be according to the above-mentioned condition that is provided with, promptly, service provider's management strategy, cost preference and tax revenue strategy, select to receive any of next at least a localization method from target terminal 302, and the position that can calculate target terminal 302 according to selected localization method.This is second execution mode of the present invention.
Fig. 9 is that the positioning service that is illustrated in according to second embodiment of the invention provides in the system, and H-SLP300 produces the flow chart of the operation of POSMETHOD_list.In the following description, suppose that H-SLP controller 500 produces with list mode and comprises information about at least a localization method, that is, and the POSMETHOD_list in SUPL TRIGGERED RESPONSE message.
With reference to Fig. 9, the H-SLP 300 that provides system when the positioning service according to second embodiment of the invention is when target terminal 302 receives SUPL TRIGGERED START message, it advances to step 900, and extracts the information about localization method from received SUPL TRIGGERED START message.Subsequently, H-SLP 300 advances to step 902, and produces the POSMETHOD_list comprise about the information of the localization method that extracted in step 900.This POSMETHOD_list comprises information (various types of parameters, description, the value of the localization method that can support about target terminal 302, for example, the needed signal type of terminal of network type (CDMA, WLAN, WCDMA, GSM, WiMAX) and every kind of network (WLANAP ID, AP signal strength signal intensity, sub-district ID, the signal strength signal intensity from the base station to the terminal, from signal strength signal intensity of terminal to base station or the like)).
Subsequently, H-SLP 300 advances to step 904, and produces the SUPL TRIGGERED RESPONSE message that comprises POSMETHOD_list by H-SLP message generator 510.Therefore, H-SLP 300 advances to the step 316 of Fig. 3, and the SUPLTRIGGERED RESPONSE message that will have a POSMETHOD_list is sent to target terminal 302.H-SLP 300 stores selected POSMETHOD_list, and can reuse this POSMETHOD_list as required at the viability that triggers.Therefore, target terminal 302 can be from the information of H-SLP 300 receptions about at least a localization method, and the priority orders of this localization method is not provided with by SUPL TRIGGEREDRESPONSE message.Target terminal 302 is stored selected POSMETHOD_list, and can reuse this POSMETHOD_list as required at the viability that triggers.
Therefore, in this case, H-SLP 300 transmits MLP TLRA message to service requester, that is, and and SUPL AGENT 104, and notify it: institute's requested service begins, shown in the step 318 of Fig. 3.
On the other hand, in second execution mode of the present invention, target terminal 302 receives the POSMETHOD_list that comprises at least a localization method that its priority orders is not set up.Further, target terminal 302 judges whether at least a localization method is suitable for current electric wave environment.And, target terminal 302 inspection be suitable for current electric wave environment, at least a localization method in POSMETHOD_list in the included localization method.Further, target terminal 302 produces and transmits the SUPL POS REPORT message that comprises about the information of this situation to H-SLP 300.
Figure 10 provides in the system in the positioning service according to second embodiment of the invention, is selected to receive from H-SLP the flow chart of the operation of localization method included the next POSMETHOD_list by target terminal 302.
With reference to Figure 10, when satisfy triggered location request service is provided condition (for example, the retention time that is provided with is expired) time, target terminal 302 according to second embodiment of the invention advances to step 1000, and provides next POSMETHOD_list information from 712 loadings of POSMETHOD_list storage area from H-SLP 300.Subsequently, target terminal 302 advances to step 1002, and extracts the information about at least a localization method included in POSMETHOD_list.In step 1004, target terminal 302 only selects to be suitable for the localization method of current electric wave environment in the localization method that is extracted.As shown previously, the step that selection is suitable for the localization method of current electric wave environment can be that only select can be in the step of the localization method of current electric wave environment (just, exchange is used for calculating the current environment of network of data of the position of target terminal 302) use.
Then, target terminal 302 advances to step 1006, and will be (for example about the information of at least a localization method in step 1004, selected because it is suitable for current electric wave environment, the type (WLAN, WiMAX or CDMA) of network that at present can received signal, or do not use A-GPS) be included in the POSMETHOD_avail information.Here, as target terminal 302 notice H-SLP 300 during, use POSMETHOD_avail information about the information of current useful localization method.
In step 1006, when when the information that can be used in the localization method in the current electric wave environment is in POSMETHOD_avail information, target terminal 302 advances to step 1008, and produces the SUPL POS REPORT message that comprises POSMETHOD_avail information.Subsequently, target terminal 302 advances to step 324, and will comprise that the SUPL POS REPORT message of POSMETHOD_avail information is sent to H-SLP 300.
Therefore, the H-SLP 300 according to second embodiment of the invention receives POSMETHOD_avail information by SUPL POS REPORT message from target terminal 302.Therefore, H-SLP 300 selects any from POSMETHOD_avail information in the included at least a localization method, and begins to carry out position calculation with target terminal 302 according to it.In this case, after triggered location request service beginning, though do not change the electric wave environment of target terminal 302, second execution mode of the present invention has such advantage: it can use the user according to service provider's management strategy and tax revenue strategy and the localization method of preference.Here, the network operator provides the locating information in the current state.
For example, in first execution mode of the present invention, the localization method of from be fit to the localization method with the electric wave environment of target terminal 300, selecting network operator's preference to be provided with.Therefore, though service provider's preference strategy has changed, except the situation of the priority orders that do not change localization method included in POSMETHOD_list, can not select localization method according to service provider's selection.Yet, in the above-described 2nd embodiment, the target terminal 302 current at least a localization methods that can support are offered H-SLP 300.Therefore, though the electric wave environment of target terminal 302 does not also change, can change localization method according to service provider's selection.Therefore, in this case, the network operator can use positioning information system effectively.
Therefore, though target terminal changes to a kind of electric wave at triggered location request viability, and determined localization method before can not using, the present invention can provide triggered location request service continuously.This makes it possible to provide the service of triggered location request more reliably.
Specifically, will use the localization method of GPS and TDOA to be interpreted as execution mode and to have described the present invention.Yet, can also use other localization methods.
And, in embodiments of the present invention,, also can use the Starting mode of setting though described the acting server pattern or the non-roaming situation of network startup mode.Here, in the network startup mode, request for location services person SUPL AGENT positions in network, and provides request that the positioning service of target terminal is provided according to the positioning service that comes automatic network.In contrast, the Starting mode to be provided with provides request according to the positioning service from target terminal, provides positioning service by location-server.
In addition, owing to described the present invention, therefore H-SLP is used as location-server in non-roaming situation mode.Yet in the roaming mode, location-server and target terminal provide the similar of the method for positioning service and non-roaming situation with the intended orientation method.Therefore, can apply the present invention to roaming condition.In this case, can be with interviewed SLP as location-server.
And, operate in the acting server pattern owing to the present invention is interpreted as it, so H-SLP is used as location-server.Location-server and target terminal provide the similar of the method for positioning service and non-roaming situation with the intended orientation method.Therefore, can apply the present invention to roaming condition.In this case, the original position SUPL centre of location (H-SLC) is used as location-server.
Though illustrate and described the present invention with reference to specific example execution mode of the present invention, but it should be appreciated by those skilled in the art, do not departing under the situation of the spirit and scope of the present invention that limit by claims, can aspect pattern and details, carry out various changes.
Claims (26)
1. a locating information provides system, comprising:
Location-server, be used for providing the target terminal of service to receive the information of the method for calculating and locating of supporting about this target terminal from locating information, at least a method for calculating and locating is sent to this target terminal, and when the information that receives from this target terminal about at least a available localization method, select any in the received localization method to calculate this target terminal position; With
Target terminal, be used to transmit information about the localization method that can support this location-server, receive the information of at least a localization method of supporting about this location-server from this location-server, extract and be transmitted in the localization method that in the electric wave environment of this target terminal, can be used in the information that is received and arrive this location-server, and use the selected localization method of this location-server that positioning service is provided.
2. locating information according to claim 1 provides system, and wherein, described location-server comprises:
The location-server memory cell is used to store the information about the localization method that receives from this target terminal, and the priority that is used to be provided with the priority orders of localization method is provided with conditional information;
Priority orders is provided with the unit, is used for that this priority orders is provided with conditional information and compares with the localization method that receives from this target terminal, and about this localization method priority orders is set;
Location-server message generator is used to produce the request to triggered location request service, and will be sent to various message this target terminal, that comprise the triggered location request service beginning message that has the localization method that its priority orders is set up; With
The location-server controller, be used for when when this target terminal receives localization method, select at least a localization method in the localization method, by priority orders the priority orders that the unit is provided with localization method is set, produce and transmit have the localization method that its priority orders is set up triggered location request service beginning message to this target terminal, and when the information that receives from this target terminal about particular position determination, use this particular position determination according to triggered location request serve positioning service be provided.
3. locating information according to claim 2 provides system, wherein, this location-server controller is according in preference that probability, service provider are provided or service provider's the strategy any one, selects at least a from the localization method that this target terminal receives.
4. locating information according to claim 2 provides system, wherein, it is information about a plurality of localization methods that this priority orders is provided with conditional information, and here, the selection of keeper, service provider or user by location-server is provided with the priority of this localization method in advance.
5. locating information according to claim 1 provides system, wherein, this location-server uses selected localization method directly to calculate this target terminal position, and the assist location information that perhaps is provided for calculating location is given this target terminal, so that this target terminal calculates the position of oneself.
6. locating information according to claim 2 provides system, wherein, this priority orders is provided with the unit and produces POSMETHOD_list, its be comprise about the information of the localization method that receives from this target terminal and with the tabulation of this localization method corresponding priorities order information.
7. locating information according to claim 6 provides system, wherein, this POSMETHOD_list according to priority orders arrange, about the tabulation of the information of this localization method.
8. locating information according to claim 7 provides system, wherein, this location-server controller is included in POSMETHOD_list in the triggered location request service beginning message, as the priority orders information about the localization method that receives from this target terminal.
9. locating information according to claim 1 provides system, and wherein, this location-server is original position secure user plane locating platform or interviewed secure user plane locating platform.
10. locating information according to claim 1 provides system, and wherein, this location-server is the original position secure user plane locating platform or the original position secure user plane centre of location.
11. a terminal that is used to provide the locating information service comprises:
Memory cell is used to store at least a localization method that target terminal is supported,
Selector is used at least a localization method that selection can be used in the localization method that this memory cell is stored in current electric wave environment;
The message generator, be used to produce to be sent to location-server, comprise message about the information of localization method; With
Controller is used for controlling at least a localization method that this selector is selected at the localization method of target terminal and location-server support.
12. terminal according to claim 11, wherein, this selector comprises and is used for checking the location Calculation environmental sensor that whether can use current selected localization method at current electric wave environment, and judges whether to use current selected localization method according to the electric wave environment sensing result of this location Calculation environmental sensor.
13. terminal according to claim 11, wherein, when controller current selected localization method is sent to be used to the location-server of positioning service is provided after, when receiving assist location information from location-server, this controller uses selected localization method to calculate the current location of oneself.
14. one kind is used for providing service to offer the method for target terminal locating information, the method comprising the steps of:
(i) by location-server the initial alignment service request information is sent to target terminal;
(ii) by target terminal in response to the initial alignment service request information, will comprise that the locating information about the information of the localization method of this target terminal support provides service beginning message to be sent to this location-server;
(iii) will comprise about the information of the localization method of this target terminal support in localization method and comprise that locating information provides the locating information of service beginning message to provide service response message to send this target terminal to by this location-server;
(iv) provide and select the localization method that uses in can current electric wave environment at least a localization method included in the service response message, and will be sent to this location-server about the information of selected localization method by this locating terminal at this target terminal in the location; With
(v) decide server and the localization method that receives from this target terminal, select anyly, and calculate this target terminal position according to selected localization method by this.
15. method according to claim 14, wherein, this target terminal location request service.
16. method according to claim 15, wherein, at step (i), this target terminal is sent to this location-server with the initial alignment service request information, with in step (ii), this locating terminal is connected to this location-server by data network, and will comprise that the triggered location request service beginning message about the information of the localization method of this target terminal support is sent to this location-server.
17. method according to claim 14, wherein step (iii) comprises:
(iii-1) provide the information of extracting the localization method of supporting about this target terminal the service beginning message by this location-server in the locating information that receives from this target terminal;
(iii-2) load the priority orders of being stored in the memory cell of this location-server by this location-server conditional information is set;
(iii-3) according to priority orders the priority orders that conditional information is provided with the localization method that is extracted is set by this location-server; With
(iii-4) will be included in the response message about the priority orders information of the localization method that extracted by this location-server, and transmit the response message that has this priority orders information.
18. method according to claim 14, wherein step (v) comprise:
(v-1), select at least a in the received localization method according in the strategy that probability, service provider's preference or service provider are provided any one; With
(v-2) calculate this target terminal position according to selected localization method.
19. method according to claim 17, wherein step (iii) comprises:
(iii-1) rearrange the localization method that this target terminal is supported by this location-server according to priority orders;
(iii-2) produce by this location-server and comprise the localization method that rearranged and about the POSMETHOD_list of the priority orders information of the localization method that rearranged; With
(iii-3) by this location-server this POSMETHOD_list is included in the triggered location request service response message.
20. method according to claim 18, wherein step (v-1) comprising:
(v-1-1) the triggered location request service response message that receives from this location-server, extract corresponding localization method by this target terminal and about the priority orders information of localization method;
(v-1-2) in localization method, select to have limit priority localization method in proper order by this target terminal;
(v-1-3) judge by this target terminal whether selected localization method is suitable for current electric wave environment;
(v-1-4) will be sent to this location-server by this target terminal according to the localization method selection information of current selected localization method according to the judged result in the step (v-1-3).
21. method according to claim 20, wherein step (v-1-4) comprising:
When selected localization method is not suitable for current electric wave environment, selects to have the localization method of inferior high priority, and judge once more whether current selected localization method is suitable for current electric wave environment for current selected localization method.
22. method according to claim 20, wherein, location Calculation selection information is the priority orders information of current selected localization method and about the information of current selected localization method.
23. method according to claim 14, wherein, whether expired whether or this target terminal arrive ad-hoc location according to the time period that the localization message that this target terminal is provided is set, and locating information is provided.
24. method according to claim 14, wherein, this location-server is original position secure user plane locating platform or interviewed secure user plane locating platform.
25. method according to claim 14, wherein, this location-server is the original position secure user plane locating platform or the original position secure user plane centre of location.
26. method according to claim 14, wherein, this locating information provides service is to be used for whether expired whether or this target terminal arrive the service that ad-hoc location provides the current locating information of this terminal according to the time period that the localization message that this target terminal is provided is set.
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| CN102082997A (en) * | 2009-11-26 | 2011-06-01 | 中兴通讯股份有限公司 | Location method, system and device |
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- 2006-08-11 KR KR1020060076414A patent/KR20070115550A/en not_active Application Discontinuation
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- 2007-06-01 RU RU2007120533/09A patent/RU2359282C2/en not_active IP Right Cessation
- 2007-06-04 CN CN 200710108237 patent/CN101083796A/en active Pending
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Also Published As
| Publication number | Publication date |
|---|---|
| KR20070115550A (en) | 2007-12-06 |
| TW200804858A (en) | 2008-01-16 |
| RU2007120533A (en) | 2008-12-10 |
| RU2359282C2 (en) | 2009-06-20 |
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