CN101815245B

CN101815245B - Locating service system and delayed service inquired method

Info

Publication number: CN101815245B
Application number: CN 201010170701
Authority: CN
Inventors: 金柱英; 金旭; 李殷旿
Original assignee: Samsung Electronics Co Ltd
Current assignee: Samsung Electronics Co Ltd
Priority date: 2005-10-10
Filing date: 2006-10-10
Publication date: 2013-04-24
Anticipated expiration: 2026-10-10
Also published as: CN101815245A; TWI315950B; TW200718084A; CN101014182B; CN101014182A; KR20070039855A; RU2006135576A; RU2337498C2

Abstract

A location service-providing system and a method for providing a deferred location request service by using previously computed position estimates. In the system and the method, if an H-SLP transmits an SUPL INIT message including location information to a target SUPL Enabled Terminal (SET) according to a location service request from an SUPL AGENT, the location information including at least one of a previous position estimate and previous assistant data, the target SET receives the SUPL INIT message, determines whether it is possible to provide the location service by reusing at least one of the location information in the SUPL INIT message and previously stored location information, when it is possible, determining position information by reusing at least one of the location information in the SUPL INIT message and the previously stored location information, and providing the SUPL AGENT with the position information.

Description

Location service-providing system and conditional repetitive location request service-providing method

The application is to be October 10, application number in 2006 the dividing an application for the application for a patent for invention of " location service-providing system and conditional repetitive location request service-providing method " that be 200610064262.X, denomination of invention the applying date.

Technical field

A kind of system and method be used to positioning service is provided of relate generally to of the present invention relates more particularly to a kind of system and method be used to the positioning service that the service of extension Location Request can be provided is provided.

Background technology

Along with the growth of demand to various location related services based on the location, use the various positioning services of the location of portable terminal to be provided and to develop, the expansion of positioning service is finished.The expansion of positioning service will be based on the 4G communication service.

Recently, extension Location Request service or triggered location request service are provided as positioning service.The service of extension Location Request refers to a kind of like this service, be used for setting up preset standard, periodically or the double counting of aperiodicity ground enable the location estimation of the terminal (SET) of secure user plane location (SUPL), and when this SET satisfies this preset standard, provide the generation of corresponding event to SUPL AGENT (the secure user plane location is acted on behalf of).

Traditional method that extension Location Request information on services is provided will be described referring to Fig. 1, and Fig. 1 explanation provides the method for extension Location Request service according to prior art.SUPL AGENT 10 sends Mobile Location Protocol Triggered Location Reporting Request (MLPTLRR in step 102, running fix agreement triggered location report request) message, thereby request Home-SUPLLocation Platform (H-SLP, family expenses SUPL locating platform) 20 provides the service of extension Location Request.

If receive the MLP TLRR message from SUPL AGENT 10, then H-SLP 20 determines the routing iinformation of corresponding target SET 30 in step 104.That is to say that H-SLP 20 determines that this target SET 30 is whether at roaming state and use SUPL.

If this target SET 30 is not in roaming state and uses this SUPL, i.e. positioning service then sends SUPL Initiation (INIT initiates) message to this target SET 30 and starts this extension Location Request service at this H-SLP 20 of step 106.This SUPL INIT message comprises: SESSION_ID, and it is be used to the identifier (ID) that is identified at the message between H-SLP 20 and the target SET 30; Position (POS) method of expression localization method; And for the standard of determining whether event has occured.

If receive this SUPL INIT message from this H-SLP 20, then determine these target SET 30 current packet data network that whether are connected in this target SET 30 of step 108.If these target SET 30 current packet data network that are not connected to, then this target SET 30 can attempt to be connected to this packet data network.

After the network connection of execution and H-SLP 20, send SUPLPOS INIT message to this H-SLP 20 in this target SET 30 of step 110.This SUPL POS INIT message comprises: SESSION_ID, and it is be used to the ID that is identified at the message between H-SLP 20 and the target SET 30; Expression is about the SET_CAPABILITY of LOCATION_ID, NETWORK_ID, SYSTEM_ID and the expression stationkeeping ability of the information of the network that comprises this target SET 30.

If receive this SUPL POS INIT message from this target SET 30, then this H-SLP 20 will be included in SET_CAPABILITY in this SUPL POS INIT message and its location survey ability compares, thereby determine POS method (POS METHOD).Further, carry out the location at this H-SLP 20 of step 112 and target SET 30 according to determined POS method.

After carrying out this location, the event generation standard that comprises in location estimation and this SUPL INIT message of this target SET 30 with it compares, and whether definite event of being asked by this SUPL AGENT 10 occurs.As this result who determines, if this event occurs, then in this target SET 30 of step 114 by using SUPL DEFERRED_REPORT message with this H-SLP 20 that reports to of this event.The POS_ESTIMATE that this SUPL DEFERRED_REPORT message comprises SESSION_ID, CLIENT_ID and represents the location estimation that calculates of this target SET 30.

If receive this SUPL DEFERRED_REPORT message from this target SET 30, then report report to this SUPL AGENT 10 of (TLR) message with this event at this H-SLP 20 of step 116 by use MLP triggered location.This MLP TLR message comprises for the REQ_ID of this extension Location Request service of sign and the TLR_POS that represents the location estimation that calculates of this target SET 30.

After the generation of this event of report, if should the service of extension Location Request be provided, this event generation standard that then in this SUPL INIT message, comprises by use in this target SET 30 of step 117, will message send to this H-SLP 20 for the SUPL DEFERRED START (SUPL delays to start) of afterwards location, thus request starts new position fixing process.

If receive this SUPL DEFERRED START message from this target SET 30, then carry out the position fixing process of the back of this target SET 30 at this H-SLP 20 of step 118.This target SET 30 compares its location estimation with this event generation standard that comprises in this SUPL INIT message, and determine whether the event of these SUPL AGENT 10 requests occurs.

If this event occurs, then in this target SET 30 of step 120 by using SUPLDEFERRED_REPORT message with this H-SLP 20 that reports to of this event.If receive this SUPL DEFERRED_REPORT message from this target SET 30, then at this H-SLP20 of step 122 by using MLP TLR message with this SUPL AGENT 10 that reports to of this event.Further, these target SET 30 and these H-SLP 20 repeating steps 117,118,120 and 122 are until arrive the default concluding time.If arrive the default concluding time, then provide the process of this extension Location Request information on services to stop.

Aforesaid conventional method be used to extension Location Request information on services is provided repeats series of steps: the location estimation of at first calculating SET; The location estimation that has calculated is compared with corresponding standard; And determine whether occured by the event of SUPL AGENT request, and report the result that this is determined.

In aforesaid conventional method, owing to as long as determine the generation of an event or do not occur, just must recomputate the location estimation of desired SET, therefore whole process is owing to resetting and complexity.In addition, because the location estimation that calculates of this SET or the auxiliary data of estimating for calculating location only are used to come once to determine whether corresponding event occurs (even it can be reused to determine whether the event of back occurs), so this conventional method efficient is not high.

Summary of the invention

Correspondingly, the present invention has been carried out to solve the problem that occurs in the prior art above-mentioned, and an object of the present invention is to provide be used to the system and method that positioning service is provided, the no matter when generation of an event or be not determined, this positioning service can provide the service of extension Location Request by reusing previous calculated location estimation or location assistance data, does not even need to recomputate location estimation or the location assistance data of desired SET.

Another object of the present invention is by using previous calculated location estimation or location assistance data to provide can be provided for location service-providing system and the conditional repetitive location request service-providing method in the positioning service of request for location services prelocalization.

In order to finish above-mentioned purpose, according to an aspect of the present invention, a kind of system be used to positioning service is provided is provided, this system comprises: H-SLP, be used for according to the request for location services from a SUPL AGENT transmit comprise locating information a SUPL INIT message to a target SET, locating information comprise that previous position is estimated and previous auxiliary data at least one; And target SET, be used for by reusing in the locating information of this SUPL INIT message and at least one in the previously stored locating information, determining whether to provide this positioning service, when can the time, determine positional information by at least one that reuse in this locating information in SUPL INIT message and this previously stored locating information, and provide this positional information to this SUPL AGENT.

In order to finish above-mentioned purpose, according to another aspect of the present invention, a kind of method that the service of extension Location Request is provided with locating information in location service-providing system is provided, the method comprises: by H-SLP according to send from the request for location services of SUPL AGENT comprise locating information SUPLINIT message to target SET, this locating information comprise that previous position is estimated and previous auxiliary data at least one; And determine whether to reuse in this locating information of in this SUPL INIT message, comprising and this previously stored locating information at least one by this target SET; When can the time, determine positional information by at least one that reuse in this locating information of in this SUPL INIT message, comprising and this previously stored locating information; And provide this positional information to this SUPL AGENT.

In order to finish above-mentioned purpose, according to a further aspect of the invention, a kind of system be used to positioning service is provided is provided, this system comprises: H-SLP, be used for according to the request for location services from SUPL AGENT, send SUPL INIT message, this SUPL INIT message comprises the QoP of this locating information that locating information, SUPLAGENT ask and the standard of this locating information, and wherein this locating information comprises at least one in previous position estimation and the location assistance data; And target SET, in the middle of the locating information that is used for comprising from previously stored locating information and this SUPL INIT message, provide the locating information that satisfies the QoP that comprises in this SUPL INIT message and standard to this SUPL AGENT.

In order to finish above-mentioned purpose, according to a further aspect of the invention, a kind of method is provided, target SET provides extension Location Request service by the location estimation with previous calculating by the method in location service-providing system, the method comprises: receive SUPL INIT message, this SUPL INIT message comprise target SET locating information, this locating information QoP and be used for selecting the standard of this locating information, wherein this locating information comprise that previous position is estimated and location assistance data at least one; And the available locating information of selecting to satisfy this QoP and standard in the locating information that from this SUPL INIT message, comprises and the previously stored locating information; And the locating information that this selection is provided is to this SUPL AGENT.

Specifically, according to an aspect of the present invention, provide a kind of and located the system that SUPL locating platform H-SLP provides positioning service by the domestic safety user plane, this system comprises: the device that is used for receiving from SUPL AGENT request for location services; Be used for according to described request for location services, the SUPL INIT message that will comprise the previous position condition sends to the device of the terminal that target SUPL enables; Be used for receiving from the terminal that target SUPL enables the device of locating information; Be used for the locating information that receives is offered the device of SUPL AGENT; And the device that is used for locating information that storing received arrives and the locality condition corresponding with this locating information, wherein, described previous position condition represents the condition of previous locating information, this previous locating information comprises for target SUPL enables the previous position estimation of terminal or the condition of location assistance data, wherein, described device for sending SUPL INIT message comprises: be used for determining whether to exist and satisfy the device previous position condition, previously stored locating information; And be used for when existence satisfy the previous position condition, during previously stored locating information, determine the device of positional information by reusing previously stored locating information.

According to another aspect of the present invention, provide a kind of and enabled the system that terminal provides positioning service by target domestic safety user plane location SUPL, this system comprises: be used for receiving the device of the SUPL INIT message that comprises the previous position condition according to the request for location services from family expenses SUPL locating platform H-SLP; Be used for determining whether to exist and satisfy the device previous position condition, previously stored locating information; Be used for when existence satisfy the previous position condition, during previously stored locating information, determine the device of positional information by reusing this previously stored locating information; Be used for providing to H-SLP the device of this positional information; And the device that is used for storing determined locating information and the locality condition corresponding with this locating information, wherein, the previous position condition represents the condition of previous locating information, and this previous locating information comprises previous position estimation or the location assistance data of enabling terminal for target SUPL.

According to a further aspect of the invention, provide a kind of and located the method that SUPL locating platform H-SLP provides positioning service by the domestic safety user plane, the method comprises: receive request for location services from SUPL AGENT; According to described request for location services, the SUPL INIT message that will comprise the previous position condition sends to target SUPL and enables terminal; Enable terminal from target SUPL and receive locating information; The locating information that receives is offered SUPLAGENT; And the locating information that arrives of storing received and the locality condition corresponding with this locating information, wherein, described previous position condition represents the condition of previous locating information, this previous locating information comprises previous position estimation or the previous position auxiliary data of enabling terminal for target SUPL, and wherein, the step of described transmission SUPL INIT message comprises: determine whether to exist and satisfy the previous position condition, previously stored locating information; And, when existence satisfy the previous position condition, during previously stored locating information, determine positional information by reusing previously stored locating information.

According to a further aspect of the invention, provide a kind of and enabled the method that terminal provides positioning service by target domestic safety user plane location SUPL, the method comprises: according to the request for location services from family expenses SUPL locating platform H-SLP, receive the SUPL INIT message that comprises the previous position condition; Determine whether to exist and satisfy the previous position condition, previously stored locating information; When existence satisfy the previous position condition, during previously stored locating information, determine positional information by reusing previously stored locating information; Provide this positional information to H-SLP; And store determined locating information and the locality condition corresponding with this locating information, wherein, the previous position condition represents to represent the condition of previous locating information, and this previous locating information comprises previous position estimation or the previous auxiliary data of enabling terminal for target SUPL.

Description of drawings

By the detailed description below in conjunction with accompanying drawing, above-mentioned and other objects, features and advantages of the present invention will be more obvious, wherein:

Fig. 1 is that explanation is a kind of according to the staircase chart of prior art for the method that the service of extension Location Request is provided;

Fig. 2 is that explanation is according to the block diagram of the structure of location service-providing system of the present invention;

Fig. 3 be explanation according to of the present invention, be used at location service-providing system by using the location estimation that had before calculated that the staircase chart of the method for extension Location Request service is provided;

Fig. 4 has illustrated the operation according to target SET of the present invention;

Fig. 5 be explanation according to of the present invention, be used at location service-providing system by using the location estimation that had before calculated that the staircase chart of the method for extension Location Request service is provided;

Fig. 6 explanation is according to structure of the present invention, that be used for the parameter of the previous locating information of request transmission;

Fig. 7 explanation is according to the structure of the condition of the previous position in the criterion of of the present invention, previous locating information; And

Fig. 8 is that explanation is according to the flow chart of the operation of target SET of the present invention.

Embodiment

After this, be described in connection with accompanying drawing according to a preferred embodiment of the invention.Should be noted that identical parts are referred to by identical Reference numeral, although they illustrate in different figure.And in the following description, known function combined herein and the detailed description of configuration will be omitted when it may make theme of the present invention smudgy.

Fig. 2 has shown according to location service-providing system of the present invention.This location service-providing system comprises that secure user plane location (SUPL) AGENT 100, Home-SUPL locating platform (H-SLP) 200, target enable terminal (SET) 300 and the mobile communications network 150 of SUPL.

In order to ask the location of this target SET 300, this SUPL AGENT 100 is corresponding with the service access pointer of this H-SLP 200 that is used for access support SUPL.Can the delay request of Location Request service or triggered location request service of such SUPL AGENT 100.When the service of this extension Location Request of request or triggered location request service, this SUPL AGENT 100 in the time of will occuring with an event relevant item be established as standard, and transmit this standard to this H-SLP 200.In addition, when the previous locating information of request, this SUPL AGENT 100 will insert service request information for standard or the condition of corresponding previous locating information, and wherein previous locating information can comprise that location estimation, location assistance data, previous position estimation, location assistance data location estimation, previous position estimation request auxiliary data, location assistance data position, location assistance data transmit required parameter etc.

This positioning assistance data refers to additional information, calculates its locating information by this target SET 300 of this additional information.For example, when this target SET 300 when using global positioning system (GPS) to calculate its locating information, this locating information can be corresponding to the orbit information of the gps satellite that is applicable to this target SET 300 with the reception gps signal.At least one of localization method that the standard of previous locating information or condition can calculate the time cycle of this previous locating information and be used for calculating this previous information corresponding to the position quality (QoP) of this previous locating information, by the timestamp that uses this previous locating information.

H-SLP 200 calculates the locating information of SET according to the request of serving from this extension Location Request of this SUPL AGENT 100 by using SUPL.If this SUPL AGENT 100 carried out should the service of extension Location Request request, then this H-SLP 200 will represent the parameter that the request of this extension Location Request service exists and insert in the SUPL INIT message, and this SUPL INIT message is sent to this target SET 300, thereby notify this target SET 300 will start service.If receive the standard of previous locating information from this SUPLAGENT 100, the request standard that then this H-SLP 200 will this corresponding previous locating information sends this target SET 300 to.If the standard of the previous locating information that sends from this SUPL AGENT 100 is not enough or relate to extraneous term, then this H-SLP 200 can increase the request standard of previous locating information, and should the request standard send this target SET 300 to subsequently.

For example, consider that 100 of this SUPL AGENT have asked the previous position estimation, and this H-SLP200 asks this target SET 300 that the previous position auxiliary data is provided in order to calculate the situation that this previous position is estimated.This is because this target SET 300 may have this previous location assistance data of calculating rather than this previous position is estimated.If this target SET 300 has this previous location assistance data of calculating, then this H-SLP 200 can ask this target SET 300 that this previous location assistance data of calculating is provided.

If this H-SLP 200 has stored this previous position auxiliary data of this target SET 300, then this H-SLP 200 can transmit this previous position auxiliary data to this target SET 300.In addition, this H-SLP200 can oneself calculate the position of this target SET 300, or to these target SET 300 delivering position auxiliary datas, be the orbit information of assistant GPS (A-GPS) information and the satellite that can communicate by letter with this H-SLP 200, thereby allow this target SET 300 to calculate its positions.And the locating information that this H-SLP 200 storages calculate, and allowing when the generation of event or being determined is reused this previous locating information according to standard or the condition of the QoP of the previous locating information that comprises this target SET 300.

This target SET 300 is the SET as the target of location, uses the SUPL agreement, and is carrying out the location when using SUPL and this H-SLP 200 exchanging orientations to measure the information that needs.Especially, the locating information that these target SET 300 storages calculate, and when carrying out the location of back, determine to reuse or do not reuse the locating information of storing according to standard or the condition of the QoP that comprises this previous locating information.This target SET 300 will this previous locating information QoP and the QoP of request for location services person (for example this SUPL AGENT 100) request or the QoP that is had by this H-SLP 200 or this target SET 300 compare, and determine to reuse or do not reuse the current previous locating information that is stored in this target SET 300.

This target SET 300 can be stored a plurality of previous locating information.In this case, this target SET 300 is selected these various previous locating information one according to the standard of this previous locating information that sends from this request for location services person (for example this SUPL AGENT 100 or this H-SLP200) or condition.The standard of this previous locating information or condition can be corresponding in the QoP, timestamp, time cycle and the localization method that are stored in a plurality of previous locating information in this target SET 300 at least one.

Having previous position auxiliary data rather than previous position at SET estimates and receives in the situation to the transmission request of this previous position auxiliary data, this SET carries out with condition the same when this previous position of request is estimated and compares, and selects correct previous locating information.

As determining to reuse or do not reuse the result who before had been stored in the previous locating information in this target SET 300, if this previous locating information can be reused, then this H-SLP 200 or this target SET 300 be by determining with this previous locating information of calculating whether event occurs, and need not calculate new locating information.

The present invention can also be applied to the positioning service that locating information is provided when particular event occurs as described above, and the periodicity positioning service that locating information periodically is provided.

When the locating information of the previous calculating that can not reuse this target SET 300, this H-SLP200 or this target SET 300 recomputate the location of this target SET 300.The situation of calculating the location of this target SET 300 can be classified as H-SLP 200 and calculate the situation of the location of this target SET 300, namely assists the MS method, and perhaps this target SET 300 is calculated the situation that it locates itself, namely based on the MS method.

When this H-SLP 200 calculated the location of this target SET 300, namely in the situation of auxiliary MS method, this target SET 300 sends calculating, and it located the needed network information to this H-SLP 200 itself.This network information can comprise the information relevant with the residential quarter at these target SET 300 current places or the information relevant with the locating area that is made of a plurality of residential quarters.If this target SET 300 is supported A-GPS functions, then this target SET 300 with the process of available satellite communication in calculate the time of advent poor (TDOA), and send this TDOA to this H-SLP 200.

Directly calculate in this target SET 300 in its situation of location, namely, in the situation based on the MS method, this target SET 300 receives the orbit information of the current satellite that can communicate by letter with this target SET 300 from this H-SLP 200, calculate this TDOA, then oneself calculates its locating information.If finish this location survey, then this target SET 300 will compare from this H-SLP 200 event criteria that receives and the locating information of calculating, thereby the event that determines whether occurs.If event occurs, then this target SET 300 is with this H-SLP 200 that reports to of this event.

This mobile communications network 150 refers to the communication network of wireless transmission/reception between this H-SLP 200 and this target SET 300, can comprise global system for mobile communications (GSM) network, universal mobile telecommunications system (UMTS) network etc.This mobile communications network 150 comprises core network 152, radio network controller (RNC) 154 and Node B 156.The information of these core network 152 these target SET 300 of management, and carry out mobile management function, conversation management functional and call management functionality.This RNC154 will send this target SET 300 to from H-SLP 200 from the data that core network 152 sends by Node B 156, and will send this H-SLP 200 to from the data that this target SET 300 receives.This Node B 156 to/from these target SET 300 sending/receiving wireless signals.

According to the location service-providing system based on the invention described above, because the locating information of the previous calculating of this target SET 300 can be reused, therefore can eliminate unnecessary finder and only determine whether an event occurs (if not must carry out several times) by the one-time positioning program.

Below, the locating information of describing a kind of previous calculating by using this target SET 300 in aforesaid location service-providing system is provided the method for this extension Location Request service.

In the present invention, will the ask for a postponement situation of Location Request service or triggered location request service of SUPL AGENT 100 be described.In this case, the specific criteria that this SUPL AGENT 100 proposes to use previous locating information is to this H-SLP 200, and this H-SLP 200 and this target SET 300 these previous locating information of use.This target SET 300 compares the standard that previously stored locating information and this SUPLAGENT100 ask.If this previously stored locating information satisfies this standard, then this target SET 300 reports to this SUPL AGENT 100 (in the situation of trigger event service) with corresponding event.

Different from the situation of trigger event service, trigger in the cycle that location estimation periodically is provided in the situation of service, the location estimation that this target SET 300 periodically will use previous locating information to calculate sends to this SUPL AGENT 100.

In addition, in the present invention, will be described in the situation of the network startup in the triggered location service, be included in the situation of the network startup in the immediately positioning service.The situation that SET starts is also used the previous locating information corresponding with core of the present invention.This SUPLAGENT 100 proposes the standard of previous position estimation or location assistance data, and this target SET 300 selects this fact of the previous locating information consistent with this standard can be applied in this immediately positioning service.

In the situation of network startup, this target SET 300 is present in the zone of being controlled by this H-SLP 200, this H-SLP 200 should SUPL AGENT 100 request, the location of calculating this target SET 300, and send the locating information of calculating to this SUPL AGENT 100.Yet the present invention can be applied to the situation that SET starts, and, according to the request of serving from the extension Location Request of this target SET 300, transmits the locating information of this target SET 300 to this target SET 300 that is.In addition, in the present invention, will be described this target SET 300 and determine that event occurs or nonevent situation.Yet self-evident, this H-SLP 200 can determine that also event occurs or do not occur.

Fig. 3 has shown according to a kind of method for the service of extension Location Request is provided by the locating information of using previous calculating at location service-providing system of the present invention.

This SUPL AGENT 100 is by using running fix agreement (MLP) to ask this H-SLP 200 that the service of extension Location Request or triggered location request service are provided.MLP Triggered LocationReporting Request (TLRR, triggered location report request) message sends this H-SLP 200 to from this SUPL AGENT 100.

This MLP TLRR message comprises parameter, such as the condition of MSID (mobile subscriber identifier), CLIENT_ID, START_TIME, STOP_TIME, TLRR_EVENT, past data pattern, previous search modes and previous position.This MSID represents unique ID of this target SET 300 (object of location), and this CLIENT_ID represents unique ID of this SUPL AGENT 100, this START_TIME representative service time started, and this STOP_TIME representative service concluding time.This TLRR_EVENT represents the positioning reporting request event and comprises TARGET_AREA and CHANGE_AREA_STATE.This TARGET_AREA represents the target area, and this CHANGE_AREA_STATE represents the state of SET and comprises ARRIVAL (arrival), LEAVING (leaving) and STAY (stop).This ARRIVAL represents this target SET 300 and whether arrives this target area, and this LEAVING represents this target SET 300 and whether leaves this target area, and this STAY represents this target SET 300 and whether is present in this target area.The past data model representative is that the request previous position is estimated or request previous position auxiliary data.This parameter also can directly be sent by this SUPL AGENT 100, perhaps can add this target SET 300 to when the standard that these H-SLP 200 these SUPL AGENT100 of transmission ask.

For example, when this SUPL AGENT 100 had asked this H-SLP 200 that previous locating information is provided, this H-SLP 200 can send the message that is used for asking previous auxiliary data to this target SET 300.Can estimate or ask by the previous position that previous search modes indication is this target SET 300 of request the previous auxiliary data of this target SET 300.The reason of request previous position auxiliary data is because this H-SLP 200 can be by using the location assistance data compute location information (for example A-GPS SET auxiliary mode) that receives from this target SET 300.

This previous search modes represents at least one in the previous locating information that this SUPL AGENT 100 is these target SET 300 of request, still asks at least one in the current locating information of this target SET 300.That is to say that it is that the previous position of only asking this target SET 300 is estimated, only asks the previous position auxiliary data of this target SET 300 or asked these two previous locating information of this target SET 300 that this previous search modes represents this SUPL AGENT 100.

The condition of previous position represents standard or the condition of previous locating information.The standard of previous locating information or QoP, timestamp and the time cycle that condition can comprise previous locating information, calculate the localization method of this previous locating information etc.

That is to say that the condition of previous position is be used to the condition of selecting previous locating information.As shown in Figure 7, this condition comprises maximum location age 702, horizontal accuracy 704, vertical precision 706, delay 708, localization method 710 (agreement, localization method etc., be used for calculating the locating information between SET and the H-SLP, for example based on SET pattern or auxiliary SET pattern, the example of agreement has: Radio Resource location services protocol (RRLP), interim standard (IS)-801 (by telecommunications industry association's issue) etc.), timestamp 712 and time restriction 714.The time that the previous locating information of these timestamp 712 representatives produces.The cycle that this time restriction 714 or the previous locating information of time cycle 714 representatives can be used.

Further, this QoP represents the precision of previous locating information.When these SUPL AGENT 100 requests have the previous locating information of previous position condition, this SUPL AGENT 100 can propose standard or condition, and this target SET 300 selects to satisfy the locating information of corresponding standard or condition from the previous locating information of storage, and sends the previous locating information of selecting.

If receive this MLR TLRR message from this SUPL AGENT 100, then determined whether to store the previous locating information of this target SET 300 at this H-SLP 200 of step 304, as shown in Figure 3.This H-SLP 200 identifies this target SET 300 by the MSID that is included in this MLR TLRR message.If stored this previous locating information, then the rank of this H-SLP 200 QoP that this SUPL AGENT 100 is asked with comprise that the previous position condition of the QoP of previous locating information compares, thereby determine whether this previous locating information can be reused.If this previous locating information can be reused, then this H-SLP 200 should previous locating information send to this target SET 300.

And self-evident if stored this previous locating information, this H-SLP 200 also can directly send this previous locating information to this target SET 300, and does not need to use the previous position condition to carry out the condition inspection.

In step 306, this H-SLP 200 sets up the routing iinformation of this target SET 300.That is to say that this H-SLP 200 determines whether this target SET 300 is in roaming state, uses this SUPL, then determines that based on this result sets up routing iinformation.In the present invention, suppose that this target SET 300 is not in roaming state and can uses this SUPL to carry out the location.

After setting up routing iinformation, at this H-SLP 200 of step 308 this SUPL INIT message is sent to this target SET 300, thereby begin this extension Location Request service.When this H-SLP 200 had this previous locating information and can reuse this previous locating information, this H-SLP 200 is estimated by previous position or location assistance data is inserted in this SUPL INIT message.This H-SLP 200 can send also that this previous position is estimated or location assistance data to this target SET 300, and need to be by means of the process of reusing or not reusing of this previous locating information of standard.And when existence comprised the condition of previous position of the QoP that is asked by this SUPL AGENT 100, this H-SLP 200 also can be inserted into this QoP in this SUPL INIT message and transmit this SUPL INIT message.

This SUPL INIT message comprises SESSION_ID, SLP-MODE, POS METHOD, CRITERIA (standard), the residing past data pattern of SERVICE_TYPE from these SUPL AGENT 100 receptions, previous search modes and previous position condition.When in the ban prelocalization information existed, this SUPL INIT message comprised this previous locating information.When the QoP by these SUPL AGENT 100 requests existed, this SUPL INIT message comprised this QoP.

This SESSION_ID representative is used for being identified at the ID of information exchange between this H-SLP 200 and this target SET 300, and this SLP-MODE represents this H-SLP 200 and whether is divided into location-server and message management services device.When this location-server and this message management services device integrated, this SLP-MODE can be indicated by PROXY_MODE.When this location-server separated with this message management services device, this SLP-MODE can be indicated by NON_PROXY_MODE.The localization method that this POSMETHOD representative is used when this H-SLP 200 and this target SET 300 compute location.For example, in global system for mobile communications (GSM) network, can use RRLP.In Wideband Code Division Multiple Access (WCDMA) (WCDMA) network, can use RRC.In cdma network, can use IS-801, SERVICE_TYPE (immediately request service or extension request service) etc.

A standard whether event occurs is determined in the standard representative, and it is sent to this target SET 300 from this H-SLP 200.This standard can comprise parameter, for example TLRR_EVENT, INTERVAL, STOP_TIME and START_TIME.TLRR_EVENT can comprise TARGET_AREA and CHANGE_AREA_STATE.This TARGET_AREA represents the target area, and this CHANGE_AREA_STATE represents the state of SET.The cycle of the position fixing process of INTERVAL representative between this H-SLP 200 and this target SET 300.START_TIME representative service time started, and STOP_TIME representative service concluding time.

If receive this SUPL INIT message from this H-SLP 200, then check this previous locating information in this target SET 300 of step 310.This previous locating information can receive from this H-SLP 200 by this SUPL INIT message in this target SET 300, perhaps can be corresponding to the previous locating information that before was stored in this target SET 300.Correspondingly, this target SET 300 determines whether comprise previous locating information in the SUPL of this reception INIT message, and determines whether this previously stored previous locating information is present in this target SET 300.

In step 312, this target SET 300 determines to reuse or do not reuse this previous previous locating information of calculating.That is to say, if there is the previous previous locating information of calculating, then these target SET 300 references comprise the previous position condition by the QoP of this SUPL AGENT 100 requests, select to satisfy the previous locating information from the standard (QoP that is for example asked by SUPL AGENT 100) of this H-SLP 200 or this SUPL AGENT 100 propositions in the previous locating information from be stored in this target SET 300.

Here, when this target SET 300 has these two previous locating information of receiving from this H-SLP 200, during the previous locating information that has again therein storage simultaneously, this target SET 300 is according in QoPs, timestamp, time restriction and the speed of each previous locating information at least one, selects to satisfy the locating information of the standard (being the previous position condition) of this proposition.Then, this target SET 300 is determined reusing or not reusing of selected locating information.In step 314, this target SET 300 is attempted data network and is connected.That is to say that this target SET 300 determines whether this target SET 300 just is being connected to packet data network.If this target SET 300 is not connected to packet data network, then this target SET 300 attempts being connected to this packet data network.This target SET 300 is determined PROXY_MODE and NON_PROXY_MODE with reference to the parameter S LP_MODE 62 in the SUPL INIT message that is included in this reception.In the situation of PROXY_MODE, this target SET 300 is carried out the connection of this H-SLP 200 by Internet Protocol.

After carry out connecting, when as determine to reuse or do not reuse the result of this previous locating information, when allowing to reuse this previous locating information, this target SET 300 is by using this previous locating information to determine the generation of event.Yet when not allowing to reuse this previous locating information, this target SET 300 is just calculated new locating information and is determined the generation of event.In the present invention, according to determining that by the locating information of using SET whether an event result who obtains has occured, and provides reservation service.Yet, in the situation of periodicity positioning service, determines whether previous locating information satisfies the condition of this elder generation's precondition, and do not need to determine whether an event has occured, and the value that will satisfy the condition of this elder generation's precondition sends to network.

In this case, will provide description based on allowing to reuse this this supposition of previous locating information.When reusing of this previous locating information was allowed to, step 316 and 318 was omitted and step 320 is performed.That is, this target SET 300 determines whether event occurs.If this event occurs, then this target SET 300 is with this H-SLP 200 that reports to of this event.For the generation of reporting event, this target SET 300 sends to this H-SLP 200 with SUPL DEFERRED_REPORT message.This SUPL DEFERRED_REPORT message comprises SESSION_ID, CLIENT_ID and POS_ESTIMATE.This POS_ESTIMATE represents the locating information of this target SET 300, and can comprise the previous locating information of this target SET 300.

If receive this SUPL DEFERRED_REPORT message from this target SET 300, then at this H-SLP 200 of step 322 by using MLP TLR message with this SUPL AGENT 100 that reports to of this event.This MLP TLR message comprises REQ_ID and TLR_POS.This REQ_ID is the ID for the request of sign extension request service, and this TLR_POS represents the previous locating information of this target SET 300.

Yet, when not allowing this previous locating information to reuse, execution in step 316.That is, this target SET 300 sends SUPL POS INIT message to this H-SLP 200.This SUPL POS INIT message comprises parameter, such as SESSION_ID, LOCATION_ID, SET_CAPABILITY etc.This SESSION_ID representative is identified at the ID of information exchange between this H-SLP 200 and this target SET 300.This LOCATION_ID represents the information relevant with the network that comprises this target SET 300, cell information, NETWORK_ID information, SYSTEM_ID information etc.This SET_CAPABILITY representative at the A-GPS of auxiliary MS with based on the A-GPS of MS between which kind of method be used as localization method and in the middle of RRLP, RRL and IS-801 which kind of agreement be used as location protocol.

If receive this SUPL POS INIT message from this target SET 300, then in step 318, this H-SLP 200 determines the localization methods that will use in position fixing process, and calculates the new locating information of this target SET 300 by determined localization method.When the localization method that will use in the position fixing process of being carried out by this target SET 300 or this H-SLP 200 has been determined in advance, the step of determining this localization method just is omitted, and the location of calculating this target SET 300 according to this predetermined localization method.

Yet, when localization method is not determined in advance, the parameter S ET_CAPABILITY that this H-SLP 200 will comprise in this SUPL POSINIT message and its stationkeeping ability compare, determine the localization method that in this position fixing process, will use, then calculate the new locating information of this target SET 300.

After the location of this target SET 300 is recalculated, determine in this target SET 300 of step 320 whether event occurs.If this event occurs, then this target SET 300 is just with this H-SLP 200 that reports to of this event.In order to report the generation of this event, this target SET 300 sends to this H-SLP 200 with this SUPL DEFERRED_REPORT message.This SUPLDEFERRED_REPORT message comprises SESSION_ID, CLIENT_ID and POS_ESTIMATE.This POS_ESTIMATE represents the position location information of this target SET 300, and can comprise the locating information that recomputates of this target SET 300.

If receive this SUPL DEFERRED_REPORT message from this target SET 300, then in step 322, this H-SLP 200 is by using this MLP TLR message with this SUPL AGENT 100 that reports to of this event.This MLP TLR message comprises REQ_ID and TLR_POS.This REQ_ID is the ID for the request of sign extension request service, and this TLR_POS represents the locating information that recomputates of this target SET 300.

According to after whether allowing to reuse this previous locating information, reporting the generation (the first report) of this event, this H-SLP 200 and this target SET 300 need to determine whether the generation of report back event as mentioned above.Because this target SET 300 is known the event generation standard by this SUPL AGENT 100 request, so this target SET 300 need can determine whether the generation of report back event, and can know the order of each event report.

When needs were reported the generation of back event, this target SET 300 entered the step (the second report) of the generation of report back event, and before the generation of determining the back event or not having generation, checks previous locating information in step 324.In step 326, this target SET 300 is determined reusing or not using of this previous locating information.Because step 324 and 326 is similar to step 310 and 312, but so details refer step 310 and 312.

As the result who determines in step 326, when allowing to reuse this previous locating information, this target SET 300 is determined generation or the not generation of the event of back by this previous locating information.Otherwise this target SET 300 is calculated new locating information and is determined generation or the not generation of the event of back.

When allowing to reuse this previous locating information, step 328 and 330 is omitted and step 332 is performed.That is, this target SET 300 is determined generation or the not generation of the event of back.Yet if do not allow to reuse this previous locating information, step 328 and 330 is performed.That is, this target SET 300 is calculated generation or the not generation of the event of new locating information and definite back.

This target SET 300 and this H-SLP 200 are with reference to this STOP_TIME and this INTERVAL, determine when that the current extension Location Request service of using finishes, and repeating step 324,326,328,330,332 and 334, until the STOP_TIME that the service of extension Location Request finishes.

In the method according to the invention, when this target SET 300 is repeatedly determined the generation of an event with this H-SLP 200 or do not occured, determine whether the position location information of previous this target SET 300 of calculating can be reused.If the locating information that should before calculate can be reused, then omit new position fixing process, and determine the generation of event or not generation with this previous locating information of calculating.Therefore, according to the method that this extension Location Request service is provided based on the previous locating information of use of the present invention, can eliminate unessential ancient city, location, and can only determine by the one-time positioning process whether event occurs (if not position fixing process must be performed several times).

Describe in more detail operation for executive basis target SET 300 of the present invention with reference to Fig. 4, the method uses previous locating information that this extension Location Request service is provided.

In step 402, this target SET 300 determines whether this SUPL INIT message is received from this H-SLP 200.This SUPL INIT message comprises SESSION_ID, SLP-MODE, POS METHOD, CRITERIA and SERVICE_TYPE.If there is this previous locating information, then this SUPL INIT message comprises this previous position.If there is the QoP of these SUPL AGENT 100 requests, then this SUPLINIT message also can comprise this QoP.

If receive this SUPL INIT message, then check this previous locating information in this target SET 300 of step 404.Can receive this previous locating information by this SUPL INIT message from this H-SLP 200 in this target SET 300, perhaps this previous locating information can be corresponding to the previous locating information that before was stored in this target SET 300.Correspondingly, this target SET 300 determines whether comprise this previous locating information in the SUPLINIT of this reception message, and determines whether to exist this previous locating information that is stored in this target SET 300.

If there is this previous locating information, then in step 406, this target SET 300 determines with reference to the previous position condition that comprises by the QoP of this SUPL AGENT 100 requests whether this previous locating information or previous auxiliary data satisfy respective standard.When SET has a plurality of locating information, maybe when this SET has the value of the quantity that surpasses the value of asking, determine whether this a plurality of locating information satisfy this previous position condition, namely from the standard of this SUPL AGENT 100 or this H-SLP 200 propositions.If some locating information satisfy this previous position condition, then this target SET 300 is selected to satisfy the locating information of this standard, and allows selected locating information to be reused.In step 410, this target SET 300 is determined the generation of event according to this locating information or is not occured.If this event occurs, the then generation of these target SET 300 these events of report.

Simultaneously, if previous locating information does not exist, if the previous locating information that perhaps exists does not satisfy this previous position condition, then carry out new location in this target SET 300 of step 412.

Under these circumstances, determine in this target SET 300 of step 412 whether localization method is determined in advance.If there is predetermined localization method, then calculate new location estimation in this target SET 300 of step 414 according to predetermined localization method.Yet if there is no predetermined localization method is identified for calculating the localization method of new location estimation in this target SET 300 of step 418, and should new definite new location estimation of localization method calculating in step 420 basis.In step 416, this target SET 300 is determined the generation of event or not generation according to the locating information of the new SET that calculates.If this event occurs, the then generation of these target SET 300 these events of report.

The method of locating information (current locating information) that Fig. 3 and 4 relates to the future of the SET this H-SLP 200 beginning to the beginning of this target SET 300 report location follow-up service requests and request from this location follow-up service request.

This target SET 300 is used the standard of the QoP that comprises this previous locating information etc., determines reusing or not reusing of previous locating information.When this previous locating information can be reused, this target SET 300 should previous locating information be regarded current locating information as, and should previous locating information send to this H-SLP 200.This H-SLP 200 admits that this previous locating information that sends from this target SET 300 is current locating information, then uses the locating information that receives.

The present invention can be applied to such situation,, follows the tracks of stolen vehicle if receive the theft reporting requirement that is, then can light the position of following the tracks of this target SET 300 from the time that receives this theft report.Yet, owing to lighting executing location from the time that receives this theft report, the present invention follows the tracks of, and therefore perhaps the position tracking before receiving this theft report is impossible.

Correspondingly, the present invention also can make the location tracking carry out before the time point that location follow-up service request begins.For example, as described below, if receive the theft report, then follow the tracks of by using locating information before receiving this theft report, to carry out the location.

Follow the tracks of for location before putting in this time started of locating the follow-up service request, when this location follow-up service request of report began, these H-SLP 200 these target SET 300 of request provided the preceding locating information.This target SET 300 is stored in the previous locating information in the predetermined period of time.If location estimation or the location assistance data of this H-SLP200 request before this location follow-up service request begins, then the QoP grade of these H-SLP 200 requests or the locating information of standard are satisfied in these target SET 300 transmission.Correspondingly, this H-SLP 200 uses this locating information that sends from this target SET 300, and the time point before beginning from this location follow-up service request provides the location follow-up service.

In Fig. 5, will a kind of method of using previous locating information when immediately Location Request service is provided be described.Yet the present invention can be applied to the triggered location request service.

In step 502, this SUPL AGENT 100 sends to this H-SLP 200 with Mobile Location Protocol SUPLLocation Immediate Request (MLP SLIR, the immediately request of running fix agreement SUPL location) message.This MLP SLIR message comprises the parameter that transmits this previous locating information for request.Fig. 6 has shown the parameter that is used for the previous locating information of request transmission.This parameter comprises quantity 602, set time 604, duration 606, sign 608, previous position condition 610, past data pattern 612, previous search modes 614 and the previous position condition of previous position.

The quantity of the requested previous locating information of quantity 602 representatives of previous position, 604 these calculated times of previous locating information (or timing data) of representative of set time.The order of these 606 interim duration of representative of duration or this previous locating information (for example, the first locating information and the second locating information).In addition, this duration 606 representative is with when definite by the relevant information of the previous locating information of these H-SLP 200 requests.This sign 608 represents the existence of the previous locating information of asking or does not exist.For example, when having the standard that is used for this previous locating information, this sign 608 can have value 0.Otherwise this sign 608 can have value 1.

This past data model representative is this previous position estimation of request or asks this auxiliary data.This parameter also can directly send from this SUPL AGENT 100, maybe is added when this H-SLP 200 will send to this target SET 300 by the standard of these SUPLAGENT 100 requests.

For example, when this SUPL AGENT 100 had asked this H-SLP 200 that previous locating information is provided, this H-SLP 200 can send the message that is used for this previous locating information of request to this target SET 300.Can indicate the previous auxiliary data of request SET or the previous locating information of request SET by using this past data pattern.The reason of these H-SLP 200 these previous position auxiliary datas of request is because this H-SLP 200 can be by using the previous position estimation (for example A-GPS SET auxiliary mode) of calculating this target SET 300 from the previous auxiliary data of these target SET 300 receptions.

Whether this previous search modes represents this H-SLP 200 asks the previous position of this target SET 300 to be estimated or the previous position auxiliary data.This previous search modes can represent following four kinds of situations: 1. the request previous position is estimated; 2. ask the previous position auxiliary data; 3. the request previous position is estimated or request previous position auxiliary data; And 4. the request previous position estimate and the previous position auxiliary data the two.

This previous position represent the standard of previous locating information when precondition.The standard of previous locating information comprise this previous locating information QoP, timestamp and time cycle, calculate the localization method of this previous locating information etc.

The standard of the previous locating information of the condition 610 representative requests of this previous position.Fig. 7 has shown the condition 610 of this previous position in the standard of locating information formerly.The condition 610 of this previous position comprises maximum location age 702, horizontal accuracy 704, vertical precision 706, delay 708, localization method 710 (agreement, localization method etc., be used for calculating the locating information between SET and the H-SLP, for example based on SET pattern or auxiliary SET pattern, the example of agreement has: RRLP, IS-801 etc.), timestamp 712 and time restriction or time cycle 714.The time that the previous locating information of these timestamp 712 representatives produces.The cycle that this time restriction or time cycles 714 representative wherein can be used previous locating information.

The available period of the previous locating information of these maximum location age 702 representatives.This maximum location age, to be this previous locating information of expression began the effectively standard of time cycle from its set time.The precision of horizontal accuracy 704 and the previous locating information of vertical precision 706 representatives, and corresponding to the information of indicating this QoP.The precision of this previous locating information is that this previous locating information of indication must have many accurate standards.This delay 708 represents the delay of this previous locating information.To be this previous locating information of indication begin to postpone standard how long from its set time in the delay of this previous locating information.

Comprise this MLP SLIR message that transmits the parameter of locating information for request if send from this SUPL AGENT 100 as mentioned above, then this H-SLP 200 determines the routing iinformation of this target SET 300 in the step 504 of Fig. 5.That is to say that this H-SLP 200 determines whether this target SET 300 is in roaming state and uses this SUPL.As this result who determines, this H-SLP 200 determines this routing iinformation.In the present invention, suppose that this target SET 300 is not in roaming state and uses this SUPL.

After determining this routing iinformation, in step 506, this H-SLP 200 sends SUPL INIT message to this target SET 300, thereby allows to start this immediately Location Request service.When this H-SLP 200 had previous locating information and can reuse it, this H-SLP 200 inserted this previous locating information to this SUPL INIT message, and transmits this SUPL INIT message.In addition, this H-SLP 200 inserts and is used for parameter that request sends this previous locating information to this SUPL INIT message, and transmits this SUPL INIT message.The transmission of this previous locating information has the structure shown in Fig. 6 and 7.

If receive this SUPL INIT message from this H-SLP 200, then check this previous locating information in this target SET 300 of step 508.At this, this target SET 300 can receive this previous locating information from this H-SLP 200 by this SUPL INIT message, or wherein can have this previous locating information.Correspondingly, whether this previous locating information that this target SET 300 is determined to be included in the SUPL INIT message of this reception exists, and whether this previous locating information of determining to be stored in this target SET 300 exists.

If this previous locating information exists, then in step 510, this target SET 300 selects to satisfy this standard of the previous locating information that will be sent to this H-SLP 200 and the locating information of QoP from this previous locating information.

That is to say that this target SET 300 will be compared by the QoP of these SUPL AGENT 100 requests and the QoP of this previous locating information.When this requested QoP was higher, this target SET 300 was selected the previous locating information of this requested QoP.In addition, this target SET 300 determines whether each this previous locating information satisfies the standard by the previous locating information of these H-SLP 200 requests.As this result who determines, this target SET 300 is selected best previous locating information.For example, this target SET 300 compares set time of previous locating information and maximum location age by the previous locating information of these H-SLP 200 requests, and selects the previous locating information calculated recently in the age of location in this maximum.The precision of the previous locating information that this target SET 300 will wherein be stored compares with the precision of the previous locating information of being asked by this H-SLP 200, and selects to have more high-precision previous locating information.And, this target SET 300 will be lighted the information how long that is delayed about set time from the current time that is stored in previous locating information wherein and compare with delay tolerance level by the previous locating information of this H-SLP 200 requests, and select to have this previous locating information in minimum delay.

After this previous position estimation of having selected as mentioned above to be sent out or auxiliary data, this target SET 300 is attempted data network in step 512 and is connected.That is to say that this target SET 300 determines whether this target SET 300 is being connected to packet data network.If this target SET 300 is not connected to this packet data network, then this target SET 300 is attempted this data network connection.This target SET 300 is determined PROXY_MODE or NON_PROXY_MODE with reference to the parameter S LP_MODE 62 that comprises in the SUPL of this reception INIT message.In the situation of this PROXY_MODE, this target SET 300 is carried out the connection of this H-SLP 200 by IP.

After having carried out this connection, this target SET 300 comprises that in step 514 transmission the SUPL REPORT message of previous position estimation is to this H-SLP 200.

If receive this SUPL REPORT message from this target SET 300, then report this previous locating information by use MLP SLIA message to this SUPL AGENT 100 at this H-SLP 200 of step 516.

After this, will the operation of this target SET 300 when this H-SLP 200 has asked previous locating information as mentioned above be described in more detail.Fig. 8 has shown the operation according to this target SET 300 of the present invention.

In step 802, this target SET 300 determines whether to receive this SUPLINIT message from this H-SLP 200.This SUPL INIT message can comprise previous locating information.In addition, this SUPL INIT message can comprise the quantity of previous locating information, and the QoP of the previous locating information that will be sent out.And this SUPL INIT message can comprise the maximum location age of the previous locating information that will be sent out, horizontal accuracy and the vertical precision of previous locating information, the set time of previous locating information, the delay of previous position estimation or auxiliary data etc.The maximum of this previous locating information location age, to be the previous locating information of indication began the effectively standard of time cycle from its set time.This horizontal accuracy and vertical precision are that this previous locating information of indication must have many accurate standards.This set time is the standard that indication calculates the time point of locating information.To be this previous locating information of indication begin to be delayed standard how long from its set time in the delay of this previous locating information.In addition, shown in Fig. 6 and 7, the localization method that uses when this SET and this H-SLP compute location information is used as standard.

If receive this SUPL INIT message from this H-SLP 200, then determine in this SUPL INIT message, whether to comprise previous locating information in this target SET 300 of step 804.Here, this target SET 300 can receive this previous locating information from this H-SLP 200 by this SUPL INIT message, or can wherein have this previous locating information.Correspondingly, whether this previous locating information that this target SET 300 is determined to be included in the SUPL INIT message of this reception exists, and whether this previous locating information of determining to be stored in this target SET 300 exists.

If this previous locating information does not exist, then send the non-existent message of this previous locating information of report to this H-SLP 200 in this target SET 300 of step 808.Yet, if this previous locating information exists, determine that in this target SET 300 of step 810 quantity of previous locating information of these existence is whether greater than the quantity of the previous locating information of this request.If more, then this target SET 300 must be selected previous locating information by this H-SLP 200 request from a plurality of previous locating information.

Correspondingly, if the quantity of the previous locating information that should exist is greater than the quantity of the previous locating information of this request, then in step 812, in this target SET 300 this previous locating information from be stored in this target SET 300, select to satisfy the previous locating information that comprises by the previous position condition of the standard of the previous locating information of this H-SLP 200 requests and QoP.

Here, standard and the QoP of this previous locating information that will wherein store of this target SET 300 and the previous position condition by the QoP of the standard of the previous locating information of this H-SLP 200 requests and the previous locating information that will be sent out that comprises compare.As this result relatively, this target SET 300 is selected optimum previous locating information.

For example, the set time that this target SET 300 will be stored in previous locating information wherein compared with maximum location age by the previous locating information of these H-SLP 200 requests, and selected the previous locating information of latest computed in the age of location in this maximum.In addition, the precision that this target SET 300 will be stored in previous locating information wherein compares with precision by the previous locating information of these H-SLP 200 requests, and selects to have the previous locating information of full accuracy.And, this target SET 300 will be delayed information how long from current point in time about set time of the previous locating information of storage wherein and compare with delay tolerance level by the previous locating information of this H-SLP 200 requests, and select to have this previous locating information in minimum delay.

After having selected as mentioned above optimum previous locating information, the previous locating information that this target SET 300 will be selected in step 814 sends to this H-SLP 200.As a result, this H-SLP 200 can this locate the follow-up service request begin prerequisite for the location follow-up service.For example, steal report if receive, then this H-SLP 200 follows the tracks of with regard to carrying out to locate before receiving this theft report by the locating information of use before this theft report.

As mentioned above, when the previous locating information that should before calculate of target SET is present in SET or H-SLP, provide the Location Request service by the previous locating information of reusing this existence.As a result, according to the present invention, when the Location Request service is provided, can eliminate unnecessary position fixing process by using this previous locating information, and obtain location estimation in the past.

In addition, according to the present invention, can only just carry out to determine whether event has occured and the processing of the generation of reporting event (if not must carry out repeatedly) by the one-time positioning process, thereby the service of extension Location Request can be provided effectively.

And, according to the present invention, by using previous locating information, can provide positioning service in the place before the time point that request for location services begins.For example, if receive the theft report, then by the locating information before using this to steal report, carry out the location tracking before receiving this theft report.

Although the preferred embodiments of the present invention are described for illustrative purposes, but only it will be appreciated by those skilled in the art that otherwise break away from additional claim to comprise disclosed scope and spirit of the present invention in the four corner of its equivalent, various modifications, increase and replacement all are possible.

Claims

1. one kind provides the system of positioning service by domestic safety user plane location SUPL locating platform H-SLP, and this system comprises:

Be used for receiving from SUPL AGENT the device of request for location services;

Be used for according to described request for location services, the SUPL INIT message that will comprise the previous position condition sends to the device of the terminal that target SUPL enables;

Be used for receiving from the terminal that target SUPL enables the device of locating information;

Be used for the locating information that receives is offered the device of SUPL AGENT; And

The device that is used for locating information that storing received arrives and the locality condition corresponding with this locating information,

Wherein, described previous position condition represents the condition of previous locating information, and this previous locating information comprises for target SUPL enables the previous position estimation of terminal or the condition of location assistance data,

Wherein, described device for sending SUPL INIT message comprises:

Be used for determining whether to exist and satisfy the device previous position condition, previously stored locating information; And

Be used for when existence satisfy the previous position condition, during previously stored locating information, determine the device of positional information by reusing previously stored locating information.

2. the system as claimed in claim 1, wherein, described previous position condition comprises at least one in precision, timestamp, time cycle and the localization method of described previous locating information.

3. the system as claimed in claim 1, wherein, described device for sending SUPL INIT message comprises:

Device for the previous position condition of inserting the locating information that is included in described SUPL INIT message; And

Be used for sending the device of this SUPL INIT message.

4. the system as claimed in claim 1, wherein, described previous position condition is provided by one of this H-SLP and this SUPL AGENT.

5. the system as claimed in claim 1, wherein, described request for location services comprises the position quality Q oP of the locating information that locating information, SUPL AGENT ask and the criterion of this locating information, and described locating information comprises at least one in previous position estimation and the previous auxiliary data.

6. the system as claimed in claim 1 wherein, by the message that is connected with request for location services, provides the previous position condition by SUPL AGENT to H-SLP.

7. enable the system that terminal provides positioning service by target domestic safety user plane location SUPL for one kind, this system comprises:

Be used for receiving the device of the SUPL INIT message that comprises the previous position condition according to the request for location services from family expenses SUPL locating platform H-SLP;

Be used for determining whether to exist and satisfy the device previous position condition, previously stored locating information;

Be used for when existence satisfy the previous position condition, during previously stored locating information, determine the device of positional information by reusing this previously stored locating information;

Be used for providing to H-SLP the device of this positional information; And

Be used for storing the device of determined locating information and the locality condition corresponding with this locating information,

Wherein, the previous position condition represents the condition of previous locating information, and this previous locating information comprises previous position estimation or the location assistance data of enabling terminal for target SUPL.

8. system as claimed in claim 7, wherein, described previous position condition comprises at least one in precision, timestamp, time cycle and the localization method of described previous locating information.

9. system as claimed in claim 7, also comprise for when do not exist satisfy described SUPL INIT message previous position condition, during previously stored locating information, carry out new location and the device of positioning service be provided.

10. system as claimed in claim 7, wherein, describedly satisfy the device previous position condition, previously stored locating information and comprise be used to determining whether to exist:

Be used for being chosen in one device the previous position condition of the previous position condition of the locating information that the SUPL INIT message that receives from H-SLP comprises and previously stored locating information;

For the device that selected previous position condition is compared with the previous position condition that SUPL AGENT asks; And

Be used for determining to reuse or do not reuse the device of described locating information.

11. system as claimed in claim 7 wherein, describedly satisfies the device previous position condition, previously stored locating information and comprises be used to determining whether to exist:

For the device that selected previous position condition is compared with the previous position condition that H-SLP has; And

12. system as claimed in claim 7 also comprises: be used for the position quality Q oP of the locating information of H-SLP is compared with the QoP of previously stored locating information, and the device that selection has high other locating information of QoP level when the previous position condition is QoP.

13. one kind provides the method for positioning service by domestic safety user plane location SUPL locating platform H-SLP, the method comprises:

Receive request for location services from SUPL AGENT;

According to described request for location services, the SUPL INIT message that will comprise the previous position condition sends to target SUPL and enables terminal;

Enable terminal from target SUPL and receive locating information;

The locating information that receives is offered SUPL AGENT; And

The locating information that storing received arrives and the locality condition corresponding with this locating information,

Wherein, described previous position condition represents the condition of previous locating information, and this previous locating information comprises previous position estimation or the previous position auxiliary data of enabling terminal for target SUPL, and

Wherein, the step of described transmission SUPL INIT message comprises:

Determine whether to exist and satisfy the previous position condition, previously stored locating information; And,

When existence satisfy the previous position condition, during previously stored locating information, determine positional information by reusing previously stored locating information.

14. method as claimed in claim 13, wherein, described previous position condition comprises at least one in precision, timestamp, time cycle and the localization method of described previous locating information.

15. method as claimed in claim 13, wherein, the step of described transmission SUPL INIT message comprises:

Insertion is included in the previous position condition of the locating information in the described SUPL INIT message; And

Send this SUPL INIT message.

16. method as claimed in claim 13, wherein, described request for location services comprises the position quality Q oP of the locating information that locating information, SUPL AGENT ask and the criterion of this locating information, and described locating information comprises at least one in previous position estimation and the previous auxiliary data.

17. method as claimed in claim 13, wherein, the step of described reception request for location services comprises: by the message that is connected with described request for location services, receive the previous position condition that provides from SUPL AGENT.

18. locate SUPL by target domestic safety user plane and enable the method that terminal provides positioning service for one kind, the method comprises:

According to the request for location services from family expenses SUPL locating platform H-SLP, receive the SUPL INIT message that comprises the previous position condition;

Determine whether to exist and satisfy the previous position condition, previously stored locating information;

When existence satisfy the previous position condition, during previously stored locating information, determine positional information by reusing previously stored locating information;

Provide this positional information to H-SLP; And

Store determined locating information and the locality condition corresponding with this locating information,

Wherein, the previous position condition represents to represent the condition of previous locating information, and this previous locating information comprises previous position estimation or the previous auxiliary data of enabling terminal for target SUPL.

19. method as claimed in claim 18, wherein, described previous position condition comprises at least one in precision, timestamp, time cycle and the position location method of described previous locating information.

20. method as claimed in claim 18, wherein, described determine whether to exist satisfy the previous position condition, previously stored locating information comprises:

Selection is included in the previous position condition of the previous position condition of the locating information in the described SUPL INIT message and previously stored locating information;

Selected previous position condition and target SUPL are enabled the previous position condition that terminal has to be compared; And

Determine to reuse or do not reuse described locating information.

21. method as claimed in claim 20, wherein, described selection step comprises:

The position quality Q oP that is included in the locating information in the described SUPL INIT message is compared with the QoP that target SUPL enables the previously stored locating information in the terminal; And

When the previous position condition is QoP, select to have high other locating information of QoP level.

22. method as claimed in claim 18, wherein, described determine whether to exist satisfy the previous position condition, previously stored locating information comprises:

The previous position condition that selected previous position condition and SUPL AGENT are asked compares; And

Determine to reuse or do not reuse described locating information.

23. method as claimed in claim 22, wherein, described selection step comprises:

The position quality Q oP that is included in the locating information in the SUPL INIT message is compared with the QoP that target SUPL enables the previously stored locating information in the terminal; And

24. method as claimed in claim 18, wherein, described determine whether to exist satisfy the previous position condition, previously stored locating information comprises:

Enabling terminal by target SUPL compares the previous position condition that previous position condition and the H-SLP of selected locating information has; And

Determine to reuse or do not reuse described locating information.

25. method as claimed in claim 24, wherein, described selection step comprises: