CN100512515C

CN100512515C - Mobile terminal period positioning method

Info

Publication number: CN100512515C
Application number: CNB2005101257803A
Authority: CN
Inventors: 阎晓路
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2005-12-01
Filing date: 2005-12-01
Publication date: 2009-07-08
Anticipated expiration: 2025-12-01
Also published as: CN1852594A

Abstract

The method includes steps: (1) client end for initiating positioning requests home-space location platform (H-SLP) to carry out periodic triggering positioning for object terminal; H-SLP informs the object terminal that periodic triggering positioning is needed; (2) time synchronization is carried out between H-SLP and object terminal; (3) interaction between H-SLP and object terminal obtains location of object terminal; and positioned result is sent to the said client end. In the invention, information of time synchronization is carried by the message adopted by interaction between H-SLP regulated by SUPL protocol of mobile positioning based on security user plane and object terminal. Thus, periodic positioning service in SUPL protocol self can implement synchronization between H-SLP and object terminal without need of specific network type or specific network equipment. Thus, periodic positioning service can be realized without any modification for current network.

Description

The method of a kind of mobile terminal period location

Technical field

The present invention relates to mobile positioning technique, particularly relate to the method for a kind of mobile terminal period location.

Background technology

In the running fix field, international Open Mobile Alliance (OMA, Open Mobile Alliance) in the running fix based on secure user plane (SUPL, the Secure User PlaneLocation) agreement of its formulation comprehensively standard mobile location service.

In some applications, initiation client in location need be carried out the periodicity location to target terminal.In order to realize this class application, in the prior art, the typical interactive step between location initiation client, ownership SUPL locating platform (H-SLP, Home SUPL Location Platform) and target terminal as shown in Figure 1.

Step 101, the location is initiated client and is proposed running fix agreement triggered location request (MLP TRRR to H-SLP, Mobile Location Protocol Triggered Location ReportingRequest), comprise the sign of target terminal and the zero hour, the termination moment and the blanking time of cycle location in the message at least.Wherein stop constantly can replacing with the duration.

Step 102, H-SLP carries out route inspection to target terminal, judge that target terminal is in non-roaming state, and definite terminal is supported the SUPL triggered location.

Step 103, H-SLP uses Short Message Service (SMS, Short Message Service) or WAP (wireless access protocol) (WAP, Wireless Access Protocol) mode sends SUPL triggered location initialization (SUPL TRIGGERED INIT) message to target terminal, informs that target terminal has the request of one-period triggered location to need target terminal to confirm.

Step 104, target terminal is tied to oneself on the data network.

Step 105 if target terminal is agreed this cycle triggered location request, then sends the SUPL triggered location to H-SLP and begins (SUPL TRIGGERED START) message, comprises the terminal capability parameter in the message at least.Terminal capability comprises: the localization method that target terminal is supported, as auxiliary agps system (A-GPS, the Assisted Global Positioning System) localization method of: terminal, based on the A-GPS localization method of terminal etc.; And located in connection agreement, as: Radio Resource location service agreement (RRLP, Radio Resource Location service Protocol), Radio Resource control (RRC, Radio Resource Control) agreement, telecommunications industry association (TIA, Telecommunication Industries Association)-801 agreements etc.

If target terminal is disagreed with this cycle triggered location request, then target terminal sends SUPL end (SUPL END) message to H-SLP, finishes whole flow process.

Step 106, agree at target terminal under the situation of triggered location request, H-SLP returns SUPL TRIGGERED RESPONSE message to target terminal, comprises the zero hour, the termination moment and the blanking time of final localization method of determining that is used for location sessions and cycle location in this message.Wherein stop constantly can replacing with the duration.

Step 107, H-SLP returns the MLP triggered location to location initiation client and answers (TLRA, Triggered Location Reporting Answer) message, and the triggered location request that expression is initiated the client proposition by the location has been accepted by target terminal.

If target terminal has been refused the triggered location request in step 105, then comprise the result parameter among the TLRA, identify the reason of location failure.

Step 108, target terminal is initiatively initiated mutual with H-SLP in the time of the parameter defined of SUPL TRIGGERED RESPONSE message, obtain target terminal position, by MLP triggered location report (TLREP, Triggered Location Report) message client is initiated in target terminal position notice location by H-SLP then.According to the parameter of SUPL TRIGGERED RESPONSE message, can repeated several times to the process that target terminal positions.

Step 109, after location sessions finished the last time, H-SLP sent SUPLEND message to target terminal, and the notification target terminal discharges resource.

By above step as can be seen, if the time on the time ratio H-SLP on the target terminal in advance, current time on might target terminal has surpassed in the step 101 initiates the cycle location that client proposes by the location and stops constantly, and the target terminal cycle of just can not carrying out locatees like this; If the time lag on the time ratio H-SLP on the target terminal, might appear at the location initiate client desired positioning time in cycle section for a long time later on, target terminal just begins to carry out the cycle location.Therefore, the retention time is extremely important synchronously between H-SLP and the target terminal.

In the prior art, have three kinds of methods can realize time synchronized between H-SLP and target terminal: code division multiple access (CDMA, Code Division Multiple Access) system can realize the time synchronized of all terminals; If adopt the device management server (DMS, DeviceManagement Server) of highest version in the network, also can carry out time synchronized to terminal; In addition, the terminal of some type can directly be obtained gps time, and H-SLP is usually also with the time of gps time as self.But, if target terminal self can't carry out time synchronized, do not dispose DMS in the simultaneity factor yet, perhaps the DMS version that is disposed in the system is low excessively, does not possess the time synchronized function, the problem in asynchronism(-nization) step between H-SLP and the target terminal will occur.

Summary of the invention

In view of this, main purpose of the present invention is to provide the method for a kind of mobile terminal period location, to be implemented in the time synchronized between the H-SLP and target terminal in the cycle positioning service.

In order to achieve the above object, the method for mobile terminal period provided by the present invention location comprises:

Steps A, location are initiated client and to ownership locating platform H-SLP request target terminal are carried out the cycle triggered location, and H-SLP notification target terminal need be carried out the cycle triggered location;

Step B, H-SLP and target terminal utilization begin message based on the triggered location that position fixing process adopted of the running fix SUPL agreement of secure user plane and the triggered location response message carries out time synchronized;

Step C, H-SLP and target terminal are mutual, obtaining the target terminal position, and the target terminal position is sent to the location as positioning result initiate client;

Wherein, the described time synchronized of carrying out of step B comprises:

Step B1, target terminal send the triggered location of carrying target terminal time synchronized ability to H-SLP and begin message;

Step B2 if H-SLP determines needs according to the time synchronized ability of target terminal target terminal is carried out time synchronized, then will be carried in the triggered location response message and send to target terminal the standard time;

After step B3, target terminal receive the triggered location response message, target terminal self time is modified to the standard time.

Wherein, it is characterized in that the described standard time is H-SLP time or global position system GPS time.

Wherein, will be carried at the standard time in the triggered location response message described in the step B2 and be sent as:

Utilize the retention parameter in the triggered location response message to represent the standard time, or, utilize the retention of existing parameter in the triggered location response message to represent the standard time, or, the newly-increased parametric representation standard time in the triggered location response message.

Wherein, the described target terminal time synchronized ability of carrying of step B1 is:

The retention parameter that utilizes triggered location to begin in the message is represented target terminal time synchronized ability, or, the retention that utilizes triggered location to begin existing parameter in the message is represented target terminal time synchronized ability, or, begin newly-increased parametric representation target terminal time synchronized ability in the message in triggered location.

Adopt technical scheme proposed by the invention, the H-SLP and the target terminal that time synchronization information are carried at SUPL agreement defined carry out in the mutual message that is adopted, thereby rely on SUPL agreement itself can in the cycle positioning service, realize synchronous between H-SLP and the target terminal, and needn't rely on special networks type or special networks equipment, with regard to need not existing network is carried out any transformation and positioning service performance period like this.

Description of drawings

Fig. 1 is the flow process of mobile terminal period positioning service in the prior art;

Fig. 2 is the flow chart of the method embodiment one of mobile terminal period provided by the invention location.

Fig. 3 is the flow chart of the method embodiment two of mobile terminal period provided by the invention location.

Fig. 4 is the flow chart of the method embodiment three of mobile terminal period provided by the invention location.

Embodiment

Core concept of the present invention is, utilizes the interaction message between H-SLP and target terminal in the cycle positioning service of SUPL agreement defined to finish time synchronized between H-SLP and target terminal

For making the purpose, technical solutions and advantages of the present invention clearer, the present invention is described in further detail below in conjunction with drawings and the specific embodiments.

Below each embodiment, all agree to carry out the situation of cycle triggered location at target terminal in step 105.

Please refer to Fig. 2, Fig. 2 is the flow chart of the method embodiment one of mobile terminal period provided by the invention location.

In the present embodiment, carrying out time synchronized between H-SLP and the target terminal is to be connected to data network at target terminal, just after the step 104 among Fig. 1, initiates client at H-SLP to the location and sends MLP TLRA, just before the step 107 among Fig. 1.Therefore, in Fig. 2, step 101 is identical with corresponding step among Fig. 1 to step 104, and step 107 is also identical with corresponding step among Fig. 1 to step 109, below only provides the detailed description of different step among Fig. 2 and Fig. 1, and promptly step 201 is to step 204.

Step 201, target terminal are accepted cycle triggered location request, send the SUPL triggered location to H-SLP and begin (SUPL TRIGGERED START) message, comprise terminal capability parameter and terminal synchronizes ability parameter in the message at least.

Wherein, terminal capability parameter identical with described in the step 105.The terminal synchronizes ability parameter, whether the expression target terminal needs to carry out time synchronized with H-SLP.Whether target terminal can obtain the standard time from other approach according to the DMS whether enough highest versions are arranged in residing network type, the network and target terminal self and judge whether that needs and H-SLP carry out time synchronized.If the residing network of target terminal is a cdma network, the DMS that enough highest versions are perhaps arranged in the network, perhaps target terminal self can obtain the standard time by other approach, and then target terminal thinks self can the deadline synchronous, does not need by coming the correction time alternately with H-SLP.Here, the standard time refers to H-SLP time or gps time.

Step 202, H-SLP is according to the terminal synchronizes ability parameter in the SUPL TRIGGERED START message, determine that terminal self is can't the deadline synchronous, for example, terminal is non-CDMA terminal, and the version that does not dispose DMS or DMS in the network at terminal place is crossed the low ability that does not have time synchronized.

Step 203, H-SLP returns SUPL TRIGGERED RESPONSE message to target terminal, comprises the zero hour, the termination moment and the blanking time of final localization method of determining that is used for location sessions and cycle location in this message.Wherein stop constantly can replacing with the duration.The current time or the gps time that also comprise H-SLP in this message can be represented with parameter Time.

If in step 202, H-SLP thinks that target terminal does not need to carry out time synchronized, does not just have the Time parameter at H-SLP in the SUPL TRIGGERED RESPONSE message that target terminal returns so, and perhaps the value of Time parameter is 0.

Step 204, target terminal is according to the time of the Time parameter correction self among the SUPL TRIGGERED RESPONSE.

If in step 203 kind, H-SLP does not have the Time parameter in the SUPL TRIGGEREDRESPONSE message that target terminal returns, perhaps the value of Time parameter is 0, and target terminal does not just carry out the correction of self time so.

Please refer to Fig. 3, Fig. 3 is the flow chart of the method embodiment two of mobile terminal period provided by the invention location.

In the present embodiment, carrying out time synchronized between H-SLP and the target terminal is to be connected to data network at target terminal, just after the step 104 among Fig. 1, initiates client at H-SLP to the location and sends MLP TLRA, just before the step 107 among Fig. 1.Therefore, in Fig. 3, step 101 is identical with corresponding step among Fig. 1 to step 104, and step 107 is also identical with corresponding step among Fig. 1 to step 109, below only provides the detailed description of different step among Fig. 3 and Fig. 1, and promptly step 301 is to step 304.

Step 301, target terminal are accepted cycle triggered location request, send the SUPL triggered location to H-SLP and begin (SUPL TRIGGERED START) message, comprise at least in the message terminal capability parameter and terminal time parameter Time1.

Wherein, terminal capability parameter identical with described in the step 105; Terminal time, parameter Time1 represented the current time on the target terminal.

Step 302, H-SLP is according to parameter terminal time in the SUPL TRIGGERED START message, determine that target terminal need carry out time synchronized, if that is: terminal time different with H-SLP time or gps time, think that then target terminal need carry out time synchronized.Terminal time described herein is with the H-SLP time or gps time is different refers to: the error of terminal time and H-SLP time or gps time has surpassed predefined thresholding.

Step 303, H-SLP returns SUPL TRIGGERED RESPONSE message to target terminal, comprises the zero hour, the termination moment and the blanking time of final localization method of determining that is used for location sessions and cycle location in this message.Wherein stop constantly can replacing with the duration.The current time or the gps time that also comprise H-SLP in this message can be represented with parameter Time2.

If in step 302, H-SLP thinks that target terminal does not need to carry out time synchronized, does not just have the Time2 parameter at H-SLP in the SUPL TRIGGERED RESPONSE message that target terminal returns so, and perhaps the value of Time2 parameter is 0.

Step 304, target terminal is according to the time of the Time2 parameter correction self among the SUPL TRIGGERED RESPONSE.

If in step 303 kind, H-SLP does not have the Time2 parameter in the SUPL TRIGGEREDRESPONSE message that target terminal returns, perhaps the value of Time2 parameter is 0, and target terminal does not just carry out the correction of self time so.

Please refer to Fig. 4, Fig. 4 is the flow chart of the method embodiment three of mobile terminal period provided by the invention location.

In the present embodiment, carrying out time synchronized between H-SLP and the target terminal is to send SUPL TRIGGERED START at target terminal to H-SLP to confirm the cycle Location Request, just after the step 105 among Fig. 1, initiate client at H-SLP to the location and send MLP TLRA, just before the step 107 among Fig. 1.Therefore, in Fig. 4, step 101 is identical with corresponding step among Fig. 1 to step 105, and step 107 is also identical with corresponding step among Fig. 1 to step 109, below only provides the detailed description of different step among Fig. 4 and Fig. 1, and promptly step 401 is to step 402.

Step 401, H-SLP returns SUPL TRIGGERED RESPONSE message to target terminal, comprises the zero hour, the termination moment and the blanking time of final localization method of determining that is used for location sessions and cycle location in this message.Wherein stop constantly can replacing with the duration.The current time or the gps time that also comprise H-SLP in this message can be represented with parameter Time.

Step 402, target terminal be according to the Time parameter among the SUPL TRIGGERED RESPONSE, judges whether self consistent with H-SLP time or gps time time, if the time inconsistent then that revise self is the represented value of Time.

In above three embodiment, utilize entrained being used to of message of prior art to carry out time synchronized parameters needed between H-SLP and the target terminal, for example Time, Time1, Time2 and target terminal time synchronized ability can utilize the reserved field in the existing message to realize; Also can utilize the retention of existing field in the existing message to realize; Can also be to realize by in existing message, increasing new parameter.

In above three embodiment, target terminal is after receiving the standard time, also can just retain the standard time, perhaps note the time difference of standard time and target terminal self time, in cycle triggered location flow process, using, and target terminal self time is not modified to the standard time.

The above is preferred embodiment of the present invention only, is not to be used to limit protection scope of the present invention.Within the spirit and principles in the present invention all, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.

Claims

1, the method for a kind of mobile terminal period location is characterized in that this method comprises:

Wherein, the described time synchronized of carrying out of step B comprises:

2, the method for mobile terminal period according to claim 1 location is characterized in that the described standard time is H-SLP time or global position system GPS time.

3, the method for mobile terminal period according to claim 1 location is characterized in that, will be carried at the standard time in the triggered location response message described in the step B2 to be sent as:

4, the method for mobile terminal period according to claim 1 location is characterized in that, carries target terminal time synchronized ability described in the step B1 and is: