CN101547397A - Method for rapidly reporting position in emergency call - Google Patents
Method for rapidly reporting position in emergency call Download PDFInfo
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- CN101547397A CN101547397A CN200810035071A CN200810035071A CN101547397A CN 101547397 A CN101547397 A CN 101547397A CN 200810035071 A CN200810035071 A CN 200810035071A CN 200810035071 A CN200810035071 A CN 200810035071A CN 101547397 A CN101547397 A CN 101547397A
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Abstract
The invention discloses a method for rapidly reporting a position in an emergency call, which effectively improves the initial positioning time to a terminal. The technical proposal comprises that: the method adjusts the sequence of reporting the position, and reports the information needed by the positioning in advance through the terminal in an emergency call state. Compared with the prior art, the method can effectively improve the initial positioning time to the terminal and is applied in the field of mobile communication.
Description
Technical field
The present invention relates to the method that mobile terminal locations reports, relate in particular in emergency calling process the method and apparatus that the terminal location to portable terminal reports.
Background technology
Along with the development of wireless communication technique, particularly the U.S. proposes after the emergency position service request, and the wireless location service more and more receives the concern of industry.According to whether needing the participation of mobile phone to classify, mainly be divided into two types for the location technology of collecting: the mobile phone location technology that needs the mobile phone location technology of mobile phone reporting information and do not need the mobile phone reporting information.The former, network system need be passed through the signaling mobile phone, and needs mobile phone initiatively to report relevant metrical information just can determine the particular location of mobile phone.So, mobile phone is full of ideas separates it and is in the state of being positioned.And mobile phone also can need stop under the prerequisite that is positioned the user, by not reporting relevant metrical information and reporting the method for false metrical information, makes the privacy of positional information of oneself be protected.But for the latter, owing to do not need the active of mobile phone to participate in, mobile phone can't confirm whether it is in the state that is positioned, and this protection for mobile phone location has caused certain difficulty.
A typical case of these class methods just is based on the localization method of cell id.According to location reference signals classification, mainly be divided into 3 types: based on the location of mobile phone cell id, based on the location of base station signal/mobile phone signal and based on the location of satellite navigation system for the location technology of collecting.Wherein, relatively poor based on the localization method precision of mobile phone cell id; Localization method based on satellite navigation system needs extra equipment and cost; Localization method based on base station signal/mobile phone signal does not need to add extras and have medium positioning accuracy substantially.
The third generation (3G, 3rd Generation) mobile communication system is the mobile communication system that present most countries in the world and area are all being used or will used.3GPP (3rd GenerationPartnership Project) has finished all relevant standard operations as the normal structure of 3G.The suggestion of each side has been adopted in relevant wireless location aspect, 3GPP tissue, has adopted whole three kinds of station-keeping modes in its standard: based on the location of mobile phone cell id, based on the location of base station signal/mobile phone signal and based on the location of satellite navigation system.For location, adopted the method that reports of measuring of collecting based on base station signal/mobile phone signal.By each signal of base station of mobile phone for measuring time of advent, and by the signaling report network, network is then finished the function of calculating mobile phone location.
Fig. 1 shows traditional system handles flow process.Seeing also Fig. 1, is the signaling process that traditional core net is sent Location Request to service wireless network controller below.
(1) core net (CN) sends Location Request to service wireless network controller (SRNC).
(2) SRNC prolongs the request of measurement to mobile phone (UE) the transmission indirect time receiving of base station.
(3) SRNC sends mobile phone measurement reception-launch time request to UE.
(4) UE measuring process.
(5) UE prolongs measurement result to the indirect time receiving of SRNC reporting base station.
(6) UE reports mobile phone measurement result reception-launch time to SRNC.
(7) SRNC sends emission latency measurement request between the base station to base station (Node B).
(8) Node B measuring process.
(9) Node B launches time delay measures between the SRNC reporting base station.
(10) SRNC position location computation.
(11) SRNC reports the position calculation result to CN.
Fig. 2 shows the basic principle based on base station signal difference time of advent location.See also Fig. 2, system has three base stations 111～113 and the mobile phone 12 with measurement capability, has the signal 131～133 of radio transmission between base station and the mobile phone, and the signal propagation time that its correspondence measures is t
1～t
3Because the radio velocity of wave propagation is constant light velocity c, so the distance of mobile phone and respective base station is d
i=t
i* c (i=1,2 ...), be the center of circle with the respective base station, d
iDraw circle 141～143 for radius, then the position of intersecting point of all circles that obtain is the mobile phone correspondence position.
Emergence call service is meant that the mobile subscriber initiates a call to EC (as first-aid centre) nearby.Emergence call service is a kind of in the teleservice, it be similar to telephone service but set up call out simple and direct comparatively speaking fast.PLMN operator can be provided with emergency telephone number according to this country and this area actual conditions.Emergence call service derives from telephone service, its allows mobile client in case of emergency, carries out the urgent call operation, when promptly dialling 119 or 110 or 120 etc., according to client's base station location of living in, insert fire alarm center (119), robber and police center (110), first-aid centre (120) etc. nearby.When the client presses emergency call key (SOS key), should how to dial the urgent center of crying to client's prompting.Emergence call service has precedence over other business, when travelling carriage does not insert client's identification card (SIM) or mobile client and is in the lock state, also can or dial 112 (the unified emergency call service central number of using in Europe by the SOS key, the equal conform European standard of travelling carriage of China's use at present), can connect the emergency call service center.
Because the particularity of emergence call service, when its professional generation, the voice call service not only being provided but also not relying on the user simultaneously provides terminal (user) position, all is necessary.For more effectively protecting user's interests in case of emergency, being provided at the user and not knowing under the self-position prerequisite it is necessary of position.
In present 3G system flow, the position fixing process under the emergence call service situation is not carried out special processing, so finish and to finish CN for user's location and judge for the foundation of business, CN and need that all processes just can obtain customer position information among customer location and Fig. 1.The processing time of above process is very big, if user's dropped calls in above process then might be lost the chance that valuable acquisition is rescued.
Summary of the invention
The objective of the invention is to address the above problem, the method for quickly reporting position in a kind of urgent call is provided, effectively improve primary positioning time terminal.
Technical scheme of the present invention is: the present invention has disclosed the method for quickly reporting position in a kind of urgent call, comprising:
(1) user uses the terminal call emergency telephone number;
(2) terminal to apply Radio Resource control connection is set up former because urgent call;
(3) radio network controller is set up the Radio Resource control connection;
(4) terminal is carried out the measurement relevant with the location;
(5) terminal reports by signaling and locatees relevant measurement, wherein measures the retention that is numbered prior regulation;
(6) radio network controller receives and measures the laggard line position estimation of the measurement report that is numbered retention, the terminal location that urgent call is carried out in storage;
(7) judge whether core net receives the position requests order of counterpart terminal, if receive order then enter step (8), otherwise repeating step (7);
(8) radio network controller reports the terminal location of storage in the step (6).
The method of quickly reporting position in the above-mentioned urgent call, wherein, the measurement in the step (4) comprises the measurement to the Serving cell of terminal and each neighbor cell base station time of arrival (toa) relation.
The method of quickly reporting position in the above-mentioned urgent call, wherein, for the terminal that has the GPS receiver, the measurement in the step (4) also comprises the relevant position of measuring or calculating acquisition according to these measurements of GPS.
The present invention has also disclosed the method for quickly reporting position in a kind of urgent call, comprising:
(1) user uses the terminal call emergency telephone number;
(2) terminal to apply Radio Resource control connection is set up former because urgent call;
(3) radio network controller is set up the Radio Resource control connection;
(4) radio network controller starts timer;
(5) terminal is carried out the measurement relevant with the location;
(6) terminal reports by signaling and locatees relevant measurement, wherein measures the retention that is numbered prior regulation;
(7) radio network controller receives and measures the laggard line position estimation of the measurement report that is numbered retention, the terminal location that urgent call is carried out in storage;
(8) judge whether timer arrives the longest position retention time and whether corresponding Radio Resource control connection disconnects,, otherwise enter step (9) if then flow process finishes;
(9) judge whether core net receives the position requests order of counterpart terminal,, otherwise return step (8) if then enter step (10);
(10) radio network controller reports the terminal location of storage in the step (7), and timer is resetted, and returns step (8) then.
The method of quickly reporting position in the above-mentioned urgent call, wherein, the measurement in the step (5) comprises the measurement to the Serving cell of terminal and each neighbor cell base station time of arrival (toa) relation.
The method of quickly reporting position in the above-mentioned urgent call, wherein, for the terminal that has the GPS receiver, the measurement in the step (5) also comprises the relevant position of measuring or calculating acquisition according to these measurements of GPS.
The present invention has also disclosed the method for quickly reporting position in a kind of urgent call, comprising:
(1) customer call emergency telephone number;
(2) terminal to apply Radio Resource control connection is set up former because urgent call;
(3) radio network controller is set up the Radio Resource control connection;
(4) terminal is according to carrying out the measurement relevant with the location measuring period;
(5) terminal reports by signaling and locatees relevant measurement, wherein measures the retention that is numbered prior regulation;
(6) radio network controller receives and measures the laggard line position estimation of the measurement report that is numbered retention, the terminal location that urgent call is carried out in storage;
(7) judge whether core net receives the position requests order of counterpart terminal,, otherwise return step (4) if receive then enter step (8);
(8) radio network controller reports the terminal location of storage in the step (6).
The method of quickly reporting position in the above-mentioned urgent call, wherein, the measurement in the step (4) comprises the measurement to the Serving cell of terminal and each neighbor cell base station time of arrival (toa) relation.
The method of quickly reporting position in the above-mentioned urgent call, wherein, for the terminal that has the GPS receiver, the measurement in the step (4) also comprises the relevant position of measuring or calculating acquisition according to these measurements of GPS.
The present invention has disclosed the method for quickly reporting position in a kind of urgent call in addition, comprising:
(1) user uses the terminal call emergency telephone number;
(2) terminal to apply Radio Resource control connection is set up former because urgent call;
(3) radio network controller is set up the Radio Resource control connection;
(4) radio network controller starts timer;
(5) terminal is according to carrying out the measurement relevant with the location measuring period;
(6) terminal reports by signaling and locatees relevant measurement, wherein measures the retention that is numbered prior regulation;
(7) radio network controller receives and measures the laggard line position estimation of the measurement report that is numbered retention, the terminal location that urgent call is carried out in storage;
(8) judge whether timer arrives the longest position retention time and whether corresponding Radio Resource control connection disconnects,, otherwise enter step (9) if then flow process finishes;
(9) judge whether core net receives the position requests order of counterpart terminal,, otherwise return step (5) if then enter step (10);
(10) radio network controller reports the terminal location of storage in the step (7), and timer is resetted, and returns step (5) then.
The method of quickly reporting position in the above-mentioned urgent call, wherein, the measurement in the step (5) comprises the measurement to the Serving cell of terminal and each neighbor cell base station time of arrival (toa) relation.
The method of quickly reporting position in the above-mentioned urgent call, wherein, for the terminal that has the GPS receiver, the measurement in the step (5) also comprises the relevant position of measuring or calculating acquisition according to these measurements of GPS.
The present invention contrasts prior art following beneficial effect: the present invention adjusts the order of reporting position, reports the required information in location when the urgent call state in advance by terminal, and the contrast prior art can effectively improve the primary positioning time to terminal.
Description of drawings
Fig. 1 is traditional core net (CN) sends signaling process figure from Location Request to service wireless network controller (SRNC).
Fig. 2 is based on base station signal difference time of advent Positioning Principle figure.
Fig. 3 is the flow chart of first embodiment of the method for quickly reporting position in the urgent call of the present invention.
Fig. 4 is the flow chart of second embodiment of the method for quickly reporting position in the urgent call of the present invention.
Fig. 5 is the flow chart of the 3rd embodiment of the method for quickly reporting position in the urgent call of the present invention.
Fig. 6 is the flow chart of the 4th embodiment of the method for quickly reporting position in the urgent call of the present invention.
Fig. 7 is signaling process figure of the present invention.
Embodiment
The invention will be further described below in conjunction with drawings and Examples.
Fig. 3 shows the flow process of first embodiment of the method for quickly reporting position in the urgent call of the present invention.Seeing also Fig. 3, is the detailed description to each step in this method below.
Step S100: the user uses the terminal call emergency telephone number.
Step S101: terminal connects according to traditional process application RRC (Radio Resource Control, Radio Resource control), sets up former because urgent call.
Step S102:RNC (Radio Network Controller, radio network controller) sets up RRC and connects.
Step S103: terminal is carried out the measurement relevant with the location.
The measurement relevant with the location comprises: for general mobile phone terminal, be to Serving cell and each neighbor cell base station (cell information is measured by Neighboring Cell List in the broadcast and terminal and obtained) time of arrival (toa) relation.For the terminal that has GPS (independence or network assistance) receiver, also comprise the relevant position of measuring or calculating acquisition according to these measurements of GPS.
Step S104: terminal reports by signaling and locatees relevant measurement, wherein measures the retention that is numbered prior regulation.Here the retention of regulation can be selected at random in advance, also can be by network and terminal agreement.
Step S105:RNC receives the laggard line position of measurement report of measuring the retention be numbered the prior regulation of previous step in rapid and estimates the terminal location that urgent call is carried out in storage.
Step S106: judge whether core net receives the position requests order of counterpart terminal, that is whether RNC receives position requests.If then enter step S107, otherwise repeating step S106.
Step S107:RNC reports the memory location of step S105.
Fig. 4 shows the flow process of second embodiment of the method for quickly reporting position in the urgent call of the present invention.Seeing also Fig. 4, is the detailed description to each step in this method below.
Step S200: the user uses the terminal call emergency telephone number.
Step S201: terminal connects according to traditional process application RRC, sets up former because urgent call.
Step S202:RNC sets up RRC.
Step S203:RNC starts timer T.
Step S204: terminal is carried out the measurement relevant with the location.
The measurement relevant with the location comprises: for general mobile phone terminal, be Serving cell and each neighbor cell base station (cell information is measured by Neighboring Cell List in the broadcast and terminal and obtained) the time of arrival (toa) relation to terminal.For the terminal that has GPS (independence or network assistance) receiver, also comprise the relevant position of measuring or calculating acquisition according to these measurements of GPS.
Step S205: terminal reports by signaling and locatees relevant measurement, wherein measures the retention that is numbered prior regulation.Here the retention of regulation can be selected at random in advance, also can be by network and terminal agreement.
Step S206:RNC receives the laggard line position of measurement report of measuring the retention be numbered the prior regulation of previous step in rapid and estimates the terminal location that urgent call is carried out in storage.
Step S207: judge whether timer T arrives regularly T0 and whether corresponding RRC connection disconnects.If then flow process finishes, otherwise enter step S208.Wherein regularly T0 is the longest position retention time, by operator or the decision of relevant EC.
Step S208: judge whether core net receives the position requests order of counterpart terminal, that is whether RNC receives position requests.If then enter step S209, otherwise return step S207.
Step S209:RNC reports the terminal location of storing among the step S206, and timer T is resetted, and returns step S207 then.
Fig. 5 shows the flow process of the 3rd embodiment of the method for quickly reporting position in the urgent call of the present invention.Seeing also Fig. 5, is the detailed description to each step in this method below.
Step S300: the user uses the terminal call emergency telephone number.
Step S301: terminal connects according to traditional process application RRC, sets up former because urgent call.
Step S302:RNC sets up RRC and connects.
Step S303: terminal is carried out the measurement relevant with the location according to t measuring period that determines, wherein measuring period, t was by operator or the decision of relevant EC, notified terminal by broadcasting or dedicated signaling by network.
The measurement relevant with the location comprises: for general mobile phone terminal, be Serving cell and each neighbor cell base station (cell information is measured by Neighboring Cell List in the broadcast and terminal and obtained) the time of arrival (toa) relation to terminal.For the terminal that has GPS (independence or network assistance) receiver, also comprise the relevant position of measuring or calculating acquisition according to these measurements of GPS.
Step S304: terminal reports by signaling and locatees relevant measurement, wherein measures the retention that is numbered prior regulation.Here the retention of regulation can be selected at random in advance, also can be by network and terminal agreement.
Step S305:RNC receives the laggard line position of measurement report of measuring the retention be numbered the prior regulation of previous step in rapid and estimates the terminal location that urgent call is carried out in storage.
Step S306: judge whether core net receives the position requests order of counterpart terminal, that is whether RNC receive the position requests order,, otherwise return step S303 if then enter step S307.
Step S307:RNC reports the terminal location of storing among the step S305.
Fig. 6 shows the flow process of the 4th embodiment of the method for quickly reporting position in the urgent call of the present invention.Seeing also Fig. 6, is the detailed description to each step in this method below.
Step S400: the user uses the terminal call emergency telephone number.
Step S401: terminal connects according to traditional process application RRC, sets up former because urgent call.
Step S402:RNC sets up RRC and connects.
Step S403:RNC starts timer T.
Step S404: terminal is carried out the measurement relevant with the location according to t measuring period that determines, wherein measuring period, t was by operator or the decision of relevant EC, notified terminal by broadcasting or dedicated signaling by network.
The measurement relevant with the location comprises: for general mobile phone terminal, be Serving cell and each neighbor cell base station (cell information is measured by Neighboring Cell List in the broadcast and terminal and obtained) the time of arrival (toa) relation to terminal.For the terminal that has GPS (independence or network assistance) receiver, also comprise the relevant position of measuring or calculating acquisition according to these measurements of GPS.
Step S405: terminal reports by signaling and locatees relevant measurement, wherein measures the retention that is numbered prior regulation.Here the retention of regulation can be selected at random in advance, also can be by network and terminal agreement.
Step S406:RNC receives the laggard line position of the measurement report of measuring the retention that is numbered the rapid prior regulation of previous step and estimates the terminal location that urgent call is carried out in storage.
Step S407: judge whether timer T arrives regularly T0 and whether corresponding RRC connection disconnects.If then flow process finishes, otherwise change step S408 over to.Wherein regularly T0 is the longest position retention time, by operator or the decision of relevant EC.
Step S408: judge whether core net receives the position requests order of counterpart terminal, that is whether RNC receives the position requests order.If then enter step S409, otherwise return step S404.
Step S409:RNC reports the terminal location of storing among the step S406, and returns step S404 after timer T resetted.
In the method for above-mentioned four embodiment, user terminal finishes that urgent call is set up and the timely reporting functions of independently relevant with location measurement, reports relevant measured value to RNC.The information transfer function between user terminal and the RNC is finished in the base station.The reception of RNC completing place metrical information and relevant location estimation function, the reporting terminal position is to core net.Core net is finished the relevant function of emergence call service.
Fig. 7 shows signaling procedure of the present invention.See also Fig. 7, at first the user uses the terminal call emergency telephone number.Terminal connects according to traditional process application RRC (Radio ResourceControl, Radio Resource control) then, sets up former because urgent call.Set up RRC by RNC control again.Position relevant measurement by terminal then, comprise terminal measuring process and base station measurement process.After measurement is finished, report by signaling and locate relevant measurement, wherein measure the retention that is numbered prior regulation by terminal.Report content comprise the indirect time receiving of base station prolong measure report, mobile phone measurement receptions-launch time reports, launch latency measurement between the base station reports etc.RNC receives the laggard line position of the measurement report of measuring the retention that is numbered prior regulation and estimates the terminal location that urgent call is carried out in storage.Receive the position requests order of counterpart terminal in core net after, report the position of storage by RNC.
The foregoing description provides to those of ordinary skills and realizes or use of the present invention; those of ordinary skills can be under the situation that does not break away from invention thought of the present invention; the foregoing description is made various modifications or variation; thereby protection scope of the present invention do not limit by the foregoing description, and should be the maximum magnitude that meets the inventive features that claims mention.
Claims (12)
1, the method for quickly reporting position in a kind of urgent call comprises:
(1) user uses the terminal call emergency telephone number;
(2) terminal to apply Radio Resource control connection is set up former because urgent call;
(3) radio network controller is set up the Radio Resource control connection;
(4) terminal is carried out the measurement relevant with the location;
(5) terminal reports by signaling and locatees relevant measurement, wherein measures the retention that is numbered prior regulation;
(6) radio network controller receives and measures the laggard line position estimation of the measurement report that is numbered retention, the terminal location that urgent call is carried out in storage;
(7) judge whether core net receives the position requests order of counterpart terminal, if receive order then enter step (8), otherwise repeating step (7);
(8) radio network controller reports the terminal location of storage in the step (6).
2, the method for quickly reporting position in the urgent call according to claim 1 is characterized in that, the measurement in the step (4) comprises the measurement to the Serving cell of terminal and each neighbor cell base station time of arrival (toa) relation.
3, the method for quickly reporting position in the urgent call according to claim 2 is characterized in that, for the terminal that has the GPS receiver, the measurement in the step (4) also comprises the relevant position of measuring or calculating acquisition according to these measurements of GPS.
4, the method for quickly reporting position in a kind of urgent call comprises:
(1) user uses the terminal call emergency telephone number;
(2) terminal to apply Radio Resource control connection is set up former because urgent call;
(3) radio network controller is set up the Radio Resource control connection;
(4) radio network controller starts timer;
(5) terminal is carried out the measurement relevant with the location;
(6) terminal reports by signaling and locatees relevant measurement, wherein measures the retention that is numbered prior regulation;
(7) radio network controller receives and measures the laggard line position estimation of the measurement report that is numbered retention, the terminal location that urgent call is carried out in storage;
(8) judge whether timer arrives the longest position retention time and whether corresponding Radio Resource control connection disconnects,, otherwise enter step (9) if then flow process finishes;
(9) judge whether core net receives the position requests order of counterpart terminal,, otherwise return step (8) if then enter step (10);
(10) radio network controller reports the terminal location of storage in the step (7), and timer is resetted, and returns step (8) then.
5, the method for quickly reporting position in the urgent call according to claim 4 is characterized in that, the measurement in the step (5) comprises the measurement to the Serving cell of terminal and each neighbor cell base station time of arrival (toa) relation.
6, the method for quickly reporting position in the urgent call according to claim 5 is characterized in that, for the terminal that has the GPS receiver, the measurement in the step (5) also comprises the relevant position of measuring or calculating acquisition according to these measurements of GPS.
7, the method for quickly reporting position in a kind of urgent call comprises:
(1) customer call emergency telephone number;
(2) terminal to apply Radio Resource control connection is set up former because urgent call;
(3) radio network controller is set up the Radio Resource control connection;
(4) terminal is according to carrying out the measurement relevant with the location measuring period;
(5) terminal reports by signaling and locatees relevant measurement, wherein measures the retention that is numbered prior regulation;
(6) radio network controller receives and measures the laggard line position estimation of the measurement report that is numbered retention, the terminal location that urgent call is carried out in storage;
(7) judge whether core net receives the position requests order of counterpart terminal,, otherwise return step (4) if receive then enter step (8);
(8) radio network controller reports the terminal location of storage in the step (6).
8, the method for quickly reporting position in the urgent call according to claim 7 is characterized in that, the measurement in the step (4) comprises the measurement to the Serving cell of terminal and each neighbor cell base station time of arrival (toa) relation.
9, the method for quickly reporting position in the urgent call according to claim 8 is characterized in that, for the terminal that has the GPS receiver, the measurement in the step (4) also comprises the relevant position of measuring or calculating acquisition according to these measurements of GPS.
10, the method for quickly reporting position in a kind of urgent call comprises:
(1) user uses the terminal call emergency telephone number;
(2) terminal to apply Radio Resource control connection is set up former because urgent call;
(3) radio network controller is set up the Radio Resource control connection;
(4) radio network controller starts timer;
(5) terminal is according to carrying out the measurement relevant with the location measuring period;
(6) terminal reports by signaling and locatees relevant measurement, wherein measures the retention that is numbered prior regulation;
(7) radio network controller receives and measures the laggard line position estimation of the measurement report that is numbered retention, the terminal location that urgent call is carried out in storage;
(8) judge whether timer arrives the longest position retention time and whether corresponding Radio Resource control connection disconnects,, otherwise enter step (9) if then flow process finishes;
(9) judge whether core net receives the position requests order of counterpart terminal,, otherwise return step (5) if then enter step (10);
(10) radio network controller reports the terminal location of storage in the step (7), and timer is resetted, and returns step (5) then.
11, the method for quickly reporting position in the urgent call according to claim 10 is characterized in that, the measurement in the step (5) comprises the measurement to the Serving cell of terminal and each neighbor cell base station time of arrival (toa) relation.
12, the method for quickly reporting position in the urgent call according to claim 11 is characterized in that, for the terminal that has the GPS receiver, the measurement in the step (5) also comprises the relevant position of measuring or calculating acquisition according to these measurements of GPS.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810035071A CN101547397A (en) | 2008-03-25 | 2008-03-25 | Method for rapidly reporting position in emergency call |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810035071A CN101547397A (en) | 2008-03-25 | 2008-03-25 | Method for rapidly reporting position in emergency call |
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| CN101547397A true CN101547397A (en) | 2009-09-30 |
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| CN200810035071A Pending CN101547397A (en) | 2008-03-25 | 2008-03-25 | Method for rapidly reporting position in emergency call |
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Open date: 20090930 |