CN102281494A - Method and system for modifying positioning parameter - Google Patents
Method and system for modifying positioning parameter Download PDFInfo
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- CN102281494A CN102281494A CN2010101971298A CN201010197129A CN102281494A CN 102281494 A CN102281494 A CN 102281494A CN 2010101971298 A CN2010101971298 A CN 2010101971298A CN 201010197129 A CN201010197129 A CN 201010197129A CN 102281494 A CN102281494 A CN 102281494A
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Abstract
The invention discloses a method for modifying a positioning parameter. The method comprises the following steps that: in the process of performing a positioning service, if a requesting party needs to modify the positioning parameter, the requesting party transmits a positioning modification message to a requested party, wherein the positioning modification message carries the positioning parameter required to be modified; and after receiving the positioning modification message, the requested party initiates the positioning consultation process or saves the positioning parameter required to be modified for the subsequent positioning process. The invention also correspondingly discloses a system for modifying the positioning parameter. By the method and the system, the positioning parameter can be modified according to the actual requirement in the process of performing the positioning service; and a terminal and a network can update the related positioning parameter timely and realizes the positioning service according to the latest positioning parameter so as to improve the flexibility of the positioning service.
Description
Technical field
The present invention relates to location technology, relate in particular to a kind of amending method and system of positional parameter.
Background technology
At present mobile communication technology is faced with to the user provides higher data rate, the problem of better covering and bigger capacity is provided for network.In order to address the above problem, third generation partner program (3rdGeneration Partnership Project, 3GPP) started wireless access network Long Term Evolution (Long TermEvolution, LTE) access network (E-UTRAN) of the access technology of project, evolution (E-UTRA), evolution and towards packet domain core network evolution (SAE) project of all-IP, wish by lasting evolution and enhancing from the wave point to the core network, for operator and the ever-increasing demand of user provide better support.
LTE is a kind of with orthogonal frequency division multiplexi (Orthogonal Frequency DivisionMultiplexing, OFDM), (Single Carrier-Frequency DivisionMultiple Access SC-FDMA) is the technology of core to the single carrier frequency division multiplex technique.The main performance target of 3GPP LTE project comprises: the peak rate that descending 100Mbps, up 50Mbps can be provided in the 20MHz spectral bandwidth; Improve the performance of Cell Edge User; Improve cell capacity; Reduce system delay, the inner unidirectional transmission time delay of user plane is lower than 5ms, and control plane is lower than 50ms from sleep state to the state of activation transit time, and the transit time from the resident state to the state of activation is less than 100ms; Support the sub-district of 100Km radius to cover; Can provide access service for 350Km/h high-speed mobile user greater than 100kbps; Support paired or non-paired frequency spectrum, but and flexible configuration 1.25MHz to the 20MHz various bandwidth.
(Location Services LCS) is a kind of novel value-added service that mobile radio communication provided in positioning service.LCS obtains positional information such as longitude and latitude, the translational speed etc. of travelling carriage by wireless location technology, offers mobile subscriber, mobile communication network or other external entity, to realize the various business relevant with the position.Use LCS, the mobile subscriber can be known own present residing position easily, and the information in inquiry or near the various places of search; Can also position specific user or tissue, monitor in real time, follow the tracks of,, realize monitoring and scheduling in conjunction with electronic chart according to user's position.Determine that customer location mainly is divided into two and goes on foot greatly: wireless signal is measured; Calculate based on the location estimation of measuring, wherein, signal measurement can carry out in user terminal, base station and Location Measurement Unit, and location estimation is calculated and can be carried out in user terminal or wireless access network.
For support location service, on the basis of LTE prior art, introduced new agreement LTE location protocol (LTE Positioning Protocol, LPP/LPPa), be used for that (Enhanced Serving Mobile Location Centre transmits locator data between E-SMLC) at UE/eNB and enhanced service mobile location centre Chinese.
LCS can utilize a kind of or more localization method to determine customer location, and the localization method of supporting among the LTE has: and the global navigation satellite auxiliary system (Assisted-Global Navigation Satellite System, A-GNSS); Downlink positioning method such as OTDOA (Observed Time Difference Of Arrival), E-CID (Enhanced Cell-ID enhancement type district ID localization method), wherein, it is multiple that A-GNSS can be subdivided into global positioning system (GPS), Galileo etc. again.According to the tenability of terminal and network, in a position fixing process, may use above-mentioned one or more localization methods.
Fig. 1 is the realization flow schematic diagram of positioning service in the existing embodiment LTE system, and as shown in Figure 1, the Location Request process is initiated to E-SMLC by terminal (UE), and this method may further comprise the steps:
Step 101:UE initiates Location Request, carries location Qos, reporting types (periodically report sum/report the time interval), and the information that each localization method (A-GNSS, OTDOA, E-CID) is corresponding etc. send to E-SMLC by the LPP location information request message.
After step 102:E-SMLC receives Location Request, the stationkeeping ability of request UE.
Step 103:UE sends the stationkeeping ability indication, carries the stationkeeping ability of support, feeds back to E-SMLC, the stationkeeping ability that E-SMLC supports according to terminal, and in conjunction with Qos etc., selected localization method.
Step 104:UE may ask to locate required positioning assistance data, is used for location survey etc.
Step 105:E-SMLC sends positioning assistance data and provides, the indication positioning assistance data, and as the ephemeris figure of A-GNSS correspondence, revise data, enciphered message etc., UE uses this positioning assistance data to initiate location survey, reports E-SMLC.
Step 106:E-SMLC calculates positioning result, issues location information response and gives UE.
The LPP message of above-mentioned steps 101～step 106 correspondence can be respectively: location information request (Location information request), stationkeeping ability request (Capability request), stationkeeping ability indication (Capability indication), positioning assistance data request (Assistance data request), positioning assistance data provide (Assistance data delivery), location information response (Locationinformation).
In above-mentioned position fixing process, LPP message can't be changed positional parameter after sending, and still, has some scenes, and for example: in the position fixing process, because requirement change is located required Qos and improved, the localization method of current selected can't satisfy Qos; Except the reporting terminal geographical location information,, need to increase terminal velocity information and report because of service needed; Because terminal can't satisfy the location Calculation requirement, positioning result calculates end and needs to change to E-SMLC by UE; The locating reporting triggering mode, may report to be revised as periodically by single and report, or periodicity reports number of times, report the interval to need change etc., under above-mentioned scene, need carry out revising in the process part positional parameter in positioning service, still, for existing positioning service implementation procedure, in case after positioning service was carried out, follow-up position fixing process can not be controlled flexibly, can't satisfy the demand.
Summary of the invention
In view of this, main purpose of the present invention is to provide a kind of amending method and system of positional parameter, can carry out according to the actual requirements positional parameter being made amendment in the process in positioning service, improves the flexibility of positioning service.
For achieving the above object, technical scheme of the present invention is achieved in that
The invention provides a kind of amending method of positional parameter, comprising:
Positioning service is carried out in the process, and the requesting party need revise positional parameter, then sends the location to Requested Party and revises message, and described location is revised message and carried the positional parameter that need revise;
After described Requested Party receives that message is revised in described location, initiate the location negotiations process or preserve the positional parameter that needs to revise to be used for follow-up position fixing process.
In the such scheme, after described Requested Party received that message is revised in described location, this method also comprised: the positional parameter that described Requested Party is revised according to the needs that carry in the described location modification message judges whether to initiate the location negotiations process.
In the such scheme, after described Requested Party was received described location modification message, this method also comprises: Requested Party was judged the modification request of the described location of acceptance, then positional parameter is made amendment, and the modification of transmission location is accepted message to the requesting party.
In the such scheme, after described Requested Party receives that message is revised in described location, this method also comprises: Requested Party judges that the described location of refusal revises request, then carries out positioning service according to original positional parameter, and sends the location and revise refuse information to the requesting party or directly stop position fixing process.
In the such scheme, this method also comprises: described Requested Party is judged when needs are initiated the location negotiations process, Requested Party is initiated the location negotiations process and is consulted positional parameter, and after new positional parameter was used for follow-up position fixing process, Requested Party sent the location modification and accepts message to the requesting party.
The present invention also provides a kind of modification system of positional parameter, comprising: requesting party and Requested Party; Wherein, described request side is used for determining whether needs modification positional parameter in the positioning service process of carrying out, and when needs are revised positional parameter, revises message to Requested Party transmission location, and described location modification message is carried the positional parameter that needs modification;
Described Requested Party is used for initiating the location negotiations process or preserve the positional parameter of revising to be used for follow-up position fixing process after the described location modification message of receiving from the requesting party.
In the such scheme, described Requested Party also is used for after receiving that message is revised in described location, and the positional parameter according to the needs that carry in the described location modification message are revised judges whether to initiate the location negotiations process.
In the such scheme, described Requested Party also is used for after receiving that message is revised in described location, judge whether to accept described location and revise request, judge the modification request of the described location of acceptance, then positional parameter is made amendment, and the modification of transmission location is accepted message to the requesting party.
In the such scheme, described Requested Party, also be used for after receiving that message is revised in described location, judge whether to accept described location and revise request, judge when request is revised in the described location of refusal, carry out positioning service according to original positional parameter, and send the location and revise refuse information to the requesting party or directly stop position fixing process.
In the such scheme, described Requested Party also is used for consulting positional parameter initiating the location negotiations process, and after new positional parameter is used for follow-up position fixing process, sends the location modification and accept message to the requesting party.
The amending method of positional parameter of the present invention and system, when positioning service needing in the process to be carried out positional parameter made amendment, requesting party's (as terminal/network terminal) sends the location to Requested Party (as network terminal/terminal) and revises message, and described location is revised message and carried the positional parameter that need revise; After Requested Party receives that message is revised in described location, initiate the location negotiations process or preserve the positional parameter that needs to revise to be used for follow-up position fixing process.By the present invention, realized carrying out in the process according to the actual requirements modification to positional parameter in positioning service, terminal and the network located in connection parameter that can upgrade in time, and realize positioning service according to up-to-date positional parameter, thus can improve the flexibility of positioning service.
Description of drawings
Fig. 1 is the realization flow schematic diagram of positioning service in the existing embodiment LTE system;
Fig. 2 is the amending method schematic flow sheet of positional parameter of the present invention;
Fig. 3 is the amending method schematic flow sheet of the embodiment of the invention 1 positional parameter;
Fig. 4 is the amending method schematic flow sheet of the embodiment of the invention 2 positional parameters.
Embodiment
Basic thought of the present invention is: when positioning service needing in the process to be carried out positional parameter made amendment, requesting party's (as terminal/network terminal) sends the location to Requested Party (as network terminal/terminal) and revises message, and described location is revised message and carried the positional parameter that need revise; After Requested Party receives that message is revised in described location, initiate the location negotiations process or preserve the positional parameter that needs to revise to be used for follow-up position fixing process.
Fig. 2 is the amending method schematic flow sheet of positional parameter of the present invention, and as shown in Figure 2, the amending method of positional parameter of the present invention comprises:
Step 201: positioning service is carried out in the process, and the requesting party determines to need to revise positional parameter.
Among the present invention, the requesting party is the either party in the positioning service, can be terminal, eNB, MME, E-SMLC or EPC LCS entity (as GMLC) etc.
Step 202: described request direction Requested Party sends the location and revises message, and described location is revised message and carried the positional parameter that need revise.
Here, Requested Party is the opposite end entity that the requesting party is revised in the location, can be the either party in the positioning service.
Step 203: after described Requested Party received that message is revised in described location, the positional parameter according to the needs that carry in the described location modification message are revised judged whether to initiate the location negotiations process, if, execution in step 204; Otherwise, forward step 205 to.
At the different positional parameters that relate in the modification process of location, the subsequent treatment mode is also different, and the overall principle is as follows:
The positional parameter of Xiu Gaiing needs Requested Party and requesting party to consult if desired, and then described Requested Party initiates to locate negotiations process again.As: terminal is revised in the message in the location that sends, revised location Qos, the current localization method (as E-CID Enhanced Cell-ID enhancement type district ID localization method) that uses in the process that positions can't satisfy new Qos, may need mutual stationkeeping ability between terminal, network, select other localization method according to Qos, as global navigation satellite auxiliary system (A-GNSS Assisted-GlobalNavigation Satellite System), at new localization method, obtain corresponding positioning assistance data simultaneously.
The positional parameter of Xiu Gaiing only notifies Requested Party to get final product if desired, does not then need to initiate the location negotiations process, and the positional parameter that only will need to revise is used for follow-up position fixing process and gets final product.As: network is revised in the message in the location that sends, and has revised the periodically locating reporting time interval (as reporting the interval to be revised as 10 minutes by 1 minute), and then Requested Party is preserved the new time interval that reports, and in follow-up position fixing process, uses new reporting parameters.
Optionally, Requested Party can also comprise step after receiving that message is revised in described location: judge whether to accept the modification request of described location, revise request if accept described location, then send to locate to revise and accept message to the requesting party; If refusal is accepted described location and is revised request (parameter of revising as needs relates to the unsupported localization method of current system, ungratified location quality of service (Qos)), then carry out positioning service, and send the location and revise refuse information to the requesting party or directly stop position fixing process according to original positional parameter.
Need to prove that the location is revised and accepted message, can consult positional parameter requesting party and Requested Party, begin to send again behind the position fixing process according to new positional parameter, or save the message signaling, and need not to send the location modification and accept message, directly continue position fixing process.
Step 204: the positional parameter that described Requested Party is revised as required, initiate the location negotiations process.
Step 205: described Requested Party does not initiate to locate negotiations process, preserves the positional parameter that needs to revise and is used for follow-up position fixing process.
In positioning service, when terminal or network have the demand of revising positional parameter, the location modification process that just can use the present invention to propose can use this process in any moment in position fixing process.
The present invention also proposes a kind of modification system of positional parameter, comprising: requesting party and Requested Party; Wherein,
Described request side is used for determining whether needs modification positional parameter in the positioning service process of carrying out, and when needs are revised positional parameter, revises message to Requested Party transmission location, and described location modification message is carried the positional parameter that needs modification;
Described Requested Party is used for initiating the location negotiations process or preserve the positional parameter of revising to be used for follow-up position fixing process after the described location modification message of receiving from the requesting party.
Described Requested Party also is used for revising the positional parameter that carries in the message according to described location after receiving that message is revised in described location, judges whether to initiate the location negotiations process.
Described Requested Party also is used for after receiving that message is revised in described location, declares end and whether accepts described location and revise request, judges that accepting described location revises request, then revises positional parameter, and sends the location and revise and accept message to the requesting party.
Described Requested Party also is used for carrying out positioning service according to original positional parameter when judging that refusal is accepted described location and revised request, and sends the location and revise refuse information to the requesting party or directly stop position fixing process.
Described Requested Party also is used for consulting positional parameter initiating the location negotiations process, and after restarting position fixing process according to new positional parameter, sends the location and revises and accept message to the requesting party.
Be described in further detail below in conjunction with the enforcement of specific embodiment technical scheme.
Embodiment 1
Present embodiment is revised Qos in position fixing process, the requesting party is a terminal, and Requested Party is E-SMLC, and Fig. 3 is the amending method schematic flow sheet of the embodiment of the invention 1 positional parameter, and as shown in Figure 3, this method comprises:
Step 301: terminal is initiated Location Request, carries location Qos etc., sends to E-SMLC by LPP location information request (Location information request) message.
After step 302:E-SMLC receives Location Request, by the stationkeeping ability of stationkeeping ability request (Capability request) message request terminal.
Step 303: terminal is carried the stationkeeping ability of support in stationkeeping ability indication (Capability indication) message, feeds back to E-SMLC, the stationkeeping ability that E-SMLC supports according to terminal, and in conjunction with Qos etc., selected localization method.Suppose this moment selected localization method be the observable time of advent poor (ObservedTime Difference of Arrival, OTDOA).
Step 304:E-SMLC provides (Assistance data delivery) message to issue the OTDOA positioning assistance data by positioning assistance data, as reference cell information, adjacent cell information.
Step 305: because service needed, UE needs high-precision positioning result, and the OTDOA of current selected can't satisfy this requirement.UE carries new Qos, sends the location and revises (Modify Req) message to E-SMLC, and E-SMLC is in conjunction with terminal, network positions ability, and selected new localization method is A-GNSS.
Step 306:E-SMLC sends the location and revises acceptance (Modify Accept) message to UE.This location is revised and is accepted in the message, may carry new localization method, positioning assistance data etc.
Need to prove that this step is an optional step.
Step 307: new if desired positioning assistance data, terminal sends positioning assistance data request (Assistance data request) message and gives E-SMLC.
Step 308:E-SMLC provides (Assistance data delivery) message to issue the A-GNSS positioning assistance data by positioning assistance data and gives terminal, as the ephemeris figure of A-GNSS correspondence, revise data, enciphered message etc., terminal uses this positioning assistance data to initiate location survey, reports E-SMLC.
Step 309:E-SMLC calculates positioning result, is handed down to terminal by locating information response (Locationinformation) message.
In the said process, if terminal, E-SMLC are not supported the localization method of new Qos correspondence, request is revised in the location of E-SMLC refusal UE, continues to use OTDOA to finish positioning service, perhaps directly stops this position fixing process.
In the said process, the treatment step after the modification process of location, according to positional parameter and the localization process process progress that modification process relates to, different.As: may ask stationkeeping ability again, issue positioning assistance data, finally report location survey, finish the positioning service process.
Embodiment 2
Present embodiment is revised the periodic report time interval in position fixing process, and the requesting party is a terminal, and Requested Party is E-SMLC, and Fig. 4 is the amending method schematic flow sheet of the embodiment of the invention 2 positional parameters, and as shown in Figure 4, this method comprises:
Step 401: terminal is initiated Location Request, carries location Qos, and reporting types (periodically report sum/report the time interval) etc. send to E-SMLC by LPP location information request (Location information request) message.Suppose to be periodically to report herein, reporting the time interval is 2 minutes.
After step 402:E-SMLC receives Location Request, by the stationkeeping ability of stationkeeping ability request (Capability request) message request terminal.
Step 403: terminal is carried the stationkeeping ability of support in stationkeeping ability indication (Capability indication) message, feed back to E-SMLC, the stationkeeping ability that E-SMLC supports according to terminal, and in conjunction with Qos etc., selected localization method.
Step 404: terminal may be used for location survey etc. by the required positioning assistance data in positioning assistance data request (Assistance data request) message request location.
Step 405:E-SMLC provides (Assistance data delivery) message indication positioning assistance data by positioning assistance data, and terminal uses this positioning assistance data to initiate location survey, reports E-SMLC.
Step 406: because service needed, terminal need be revised and periodically report the time interval is 10 minutes, and then terminal is carried the new time interval, sends location modification (Modify Req) message and gives E-SMLC.
Step 407:E-SMLC preserves this positioning time at interval, is used for the follow-up process that reports, and E-SMLC sends location modification acceptance (Modify Accept) message and gives terminal.
Need to prove that this step is an optional step.
Step 408: according to the new time interval, E-SMLC calculates positioning result according to the measurement that reports, and is handed down to terminal by locating information response (Location information) message.
After step 409:10 minute, the triggered location measurement report.
In the said process, the periodic report time interval that E-SMLC preserves the terminal request modification gets final product, and new argument is used for follow-up locating reporting process.If owing to reasons such as resource limit, positioning service restrictions, can not revise this time interval, request is revised in the location of E-SMLC refusal terminal, continues to use primitive period to report parameter to finish positioning service, perhaps directly stops this position fixing process.
Same, at the LPPa agreement of transmitting locator data between eNB and E-SMLC, above-mentioned location modification process still is suitable for.That is, in position fixing process, when eNB or E-SMLC need revise positional parameter, carry this parameter, send the LPPa location and revise message to the opposite end, subsequent processes is the same.
In sum, by means of technical scheme of the present invention, by in positioning service, increasing the location modification process, user terminal, the network located in connection parameter that can upgrade in time, and realize positioning service according to up-to-date positional parameter, be beneficial to flexible control position fixing process.
The above is preferred embodiment of the present invention only, is not to be used to limit protection scope of the present invention.
Claims (10)
1. the amending method of a positional parameter is characterized in that, this method comprises:
Positioning service is carried out in the process, and the requesting party need revise positional parameter, then sends the location to Requested Party and revises message, and described location is revised message and carried the positional parameter that need revise;
After described Requested Party receives that message is revised in described location, initiate the location negotiations process or preserve the positional parameter that needs to revise to be used for follow-up position fixing process.
2. method according to claim 1, it is characterized in that, after described Requested Party received that message is revised in described location, this method also comprised: the positional parameter that described Requested Party is revised according to the needs that carry in the described location modification message judges whether to initiate the location negotiations process.
3. method according to claim 1, it is characterized in that after described Requested Party received that message is revised in described location, this method also comprised: Requested Party judges that accepting described location revises request, then positional parameter is made amendment, and the modification of transmission location is accepted message to the requesting party.
4. method according to claim 1, it is characterized in that, after described Requested Party receives that message is revised in described location, this method also comprises: Requested Party is judged the modification request of the described location of refusal, then carry out positioning service, and send the location and revise refuse information to the requesting party or directly stop position fixing process according to original positional parameter.
5. method according to claim 2, it is characterized in that, this method also comprises: described Requested Party is judged when needs are initiated the location negotiations process, Requested Party is initiated the location negotiations process and is consulted positional parameter, and after new positional parameter was used for follow-up position fixing process, Requested Party sent the location and revises and accepts message to the requesting party.
6. the modification system of a positional parameter is characterized in that, this system comprises: requesting party and Requested Party; Wherein,
Described request side is used for determining whether needs modification positional parameter in the positioning service process of carrying out, and when needs are revised positional parameter, revises message to Requested Party transmission location, and described location modification message is carried the positional parameter that needs modification;
Described Requested Party is used for initiating the location negotiations process or preserve the positional parameter of revising to be used for follow-up position fixing process after the described location modification message of receiving from the requesting party.
7. system according to claim 6 is characterized in that,
Described Requested Party also is used for after receiving that message is revised in described location, and the positional parameter according to the needs that carry in the described location modification message are revised judges whether to initiate the location negotiations process.
8. system according to claim 6 is characterized in that,
Described Requested Party also is used for judging whether to accept described location and revising request after receiving that message is revised in described location, judges that accepting described location revises request, then positional parameter is made amendment, and sends the location and revise and accept message to the requesting party.
9. system according to claim 6 is characterized in that,
Described Requested Party, also be used for after receiving that message is revised in described location, judge whether to accept described location and revise request, judge when request is revised in the described location of refusal, carry out positioning service according to original positional parameter, and send the location and revise refuse information to the requesting party or directly stop position fixing process.
10. system according to claim 7 is characterized in that,
Described Requested Party also is used for consulting positional parameter initiating the location negotiations process, and after new positional parameter is used for follow-up position fixing process, sends the location modification and accept message to the requesting party.
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| WO2016127662A1 (en) * | 2015-02-12 | 2016-08-18 | 中兴通讯股份有限公司 | Method, apparatus and system for controlling acquisition of m2m node position information, and storage medium |
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| CN108512882A (en) * | 2017-02-28 | 2018-09-07 | 腾讯科技（深圳）有限公司 | The amending method and device of location information |
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| WO2022222004A1 (en) * | 2021-04-19 | 2022-10-27 | 北京小米移动软件有限公司 | Cell positioning method and apparatus, and storage medium |
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