CN102014429A - Method for fast positioning of mobile terminal in cellular network - Google Patents
Method for fast positioning of mobile terminal in cellular network Download PDFInfo
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- CN102014429A CN102014429A CN2010106065660A CN201010606566A CN102014429A CN 102014429 A CN102014429 A CN 102014429A CN 2010106065660 A CN2010106065660 A CN 2010106065660A CN 201010606566 A CN201010606566 A CN 201010606566A CN 102014429 A CN102014429 A CN 102014429A
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Abstract
The invention provides a method for fast positioning of a mobile terminal in a cellular network. The method comprises the following steps: utilizing a terminal side to generate measuring reports transmitted by an ABIS interface or an Iub interface at a network side in the communication process with a network; for each measuring report in data record of the group of measuring reports, initially calculating the geographic location of the terminal when the measuring report is generated according to the geographic location, receiving level and type of an included cell; and then respectively carrying out arithmetic statistical average on longitude data and latitude data so as to obtain the geographic location of the target terminal finally. The method has higher positioning accuracy to the mobile terminal than that of the traditional positioning method taking the cell as the terminal position, also has low complexity, can be applied in second-generation and third-generation mobile communication cell networks such as a global system for mobile communication (GSM) network, a code division multiple access (CDMA) network, a CDMA2000 network, a wideband code division multiple access (WCDMA) network, a time division-synchronization code division multiple access (TD-SCDMA) network and the like.
Description
Technical field
The present invention relates to moving communicating field, relate in particular to the method for localisation of mobile terminals in the cellular network.
Background technology
Development along with mobile communication technology, location-based service extensively is penetrated in people's the productive life, utilizes the terminal positioning technology, the relevant information of can inquiring user required locality, as neighbouring which hotel, market, gas station are arranged, and the position of local weather situation and certain company etc.; When people run into the emergency traffic accident in the other places, rob, when sick and wounded, as long as beat emergency relief telephone with mobile phone, cellular network is when delivering to rescue center with this urgent call, can send terminal use's positional information and user's voice information to rescue center in the lump, with fast reaction, the success rate that improves rescue and fight crime; Adorn a moving carriage-table on each automobile or the every row train, communications and transportation unit can determine the position of vehicle, realizes management of vehicles and scheduling easily; By the long-time statistics of great amount of terminals positional information, can also provide significant data in addition for rational deployment, structure and the raising wireless resource utility efficiency of honeycomb.
The portable terminal location technology is divided into satellite system location and cellular network location two big classes at present, the utilization of satellite system location technology runs on the multi-satellite of trapped orbit and the Time Calculation end coordinates that satellite-signal arrives receiver, accuracy is higher, but terminal can't receive signal when the user is positioned at city or shelter, and positioning chip and algorithm need by the terminal support, if use the terminal that chip is not installed then can't enjoy location-based service; Simultaneously except user self, other personnel are difficult to learn user's position, and when the user was in dangerous situation or awkward situation and is difficult to send Location Request, board service personnel can't the positive location user, and these all provide difficulty for the popularization of location-based service.And the cellular network location technology is provided by Mobile Network Operator, its wide coverage, can locate any zone that mobile network signals covers, need not the user changes or upgrading terminals, can be by the disaster-stricken user of network management personnel's positive location, and locating information is often combined closely with data such as the intensity of base station signal, quality, frequency, user's scramblers, can be applied in access network preferably and optimize the field.
The angle of arrival of signal of communication between cellular network location technology general using base station and the terminal, the time of advent, the time of advent parameter acquiring terminal such as difference and received power the position, yet traditional is lower as the localization method precision of terminal location with the sub-district, and amount of information is less, is difficult to be applied to access network and optimizes the field.
Summary of the invention
The invention provides the method for quick localisation of mobile terminals in a kind of cellular network, utilize end side with the network service process in produce and measurement report consumer positioning by network side ABIS interface or Iub interface transmission, positioning accuracy is higher than traditional with the localization method of sub-district as terminal location, and complexity is lower, can be applied in the second generations such as GSM, CDMA, CDMA2000, WCDMA, TD-SCDMA and the 3G (Third Generation) Moblie cellular network.
For solving the problems of the technologies described above, the present invention proposes the method for quick localisation of mobile terminals in a kind of cellular network, it is characterized in that, may further comprise the steps:
Step 1, utilize the cellular network interface snooping equipment to intercept interface between base station and the base station controller, to obtain group measurement reporting data of corresponding target terminal;
Described step 3 specifically may further comprise the steps:
Step a, the Serving cell that comprises for each bar measurement report data record, in the engineering parameter table, carry out match search, matching process with the geographical position that obtains this Serving cell, affiliated base station is: search the data line record that has comprised the same cells sign in the engineering parameter table, as the engineering parameter data record of this Serving cell correspondence.
Step b, each adjacent area that comprises for each bar measurement report data record, in the engineering parameter table, carry out match search, matching process with the geographical position that obtains this sub-district, affiliated base station is: for gsm system or cdma system, search the data record row that comprises identical broadcasts control channel number and base station identity code in the engineering parameter table; For CDMA2000, WCDMA or TD-SCDMA system, in the engineering parameter table, search the data record row that comprises identical common signal channel center frequency point and scrambler.
Step c, each adjacent area that comprises for each bar measurement report data record, when the record line number order of the coupling that searches greater than 1 the time, geographical position according to the sub-district in the geographical position of the Serving cell of this measurement report data record and many data record in the engineering parameter table, matching, distance between difference calculation services sub-district and the data record respective cell, that data line record of a selected distance value minimum then is as the engineering parameter data record of this adjacent area correspondence.
Steps d, each adjacent area that comprises for each bar measurement report data record, according to the geographical position of the Serving cell of this measurement report data record and the geographical position of this adjacent area, the distance between calculation services sub-district and the adjacent area, when this distance greater than f
dWhen rice, then in thereafter step S07, the sub-district described in the S08, get rid of this adjacent area; f
dBe empirical coefficient, value is a 2000-3500 rice.
f
dBe preferably 2640 meters.
Described step 5 specifically comprises: to each the bar measurement report data record in this group measurement reporting data record, according to geographical position, incoming level, the type of its sub-district that comprises, the geographical position at terminal place when calculating this measurement report of generation according to following formula (1):
Wherein, x and y are respectively the longitude and the latitudes at terminal place when producing this measurement report; I is the numbering of each sub-district in this measurement report; According to the order of the sub-district that this measurement report write down, numbering increases progressively successively; Numbering 1 is represented Serving cell; x
iAnd y
iBe respectively the longitude and the latitude at cell i place; For gsm system or cdma system, R
iIt is the received signal level of cell i correspondence; For CDMA2000, WCDMA or TD-SCDMA system, R
iP-CCPCH received signal code power+110dbm for cell i; N is the number of the adjacent area that comprises of this measurement report; T represents the type of cell i; f
tAnd f
1It all is empirical coefficient; f
1Value be generally 1-2, f
1Be preferably 1.45; According to the difference of t, f
tHave following different values:
When cell i belongs to the 1st class sub-district, f
t∈ (0.75,1.25); When cell i belongs to the 2nd class sub-district, f
t∈ (1.35,2.25); When cell i belongs to the 3rd class sub-district, f
t∈ (2.25,3.75).
In above-mentioned steps, when cell i belongs to the 1st class sub-district, f
tBe preferably 1; When cell i belongs to the 2nd class sub-district, f
tBe preferably 1.8; When cell i belongs to the 3rd class sub-district, f
tBe preferably 3.05.
Complexity of the present invention is low, and positioning accuracy is moderate, under the sub-district mean radius is situation about 550 meters, field test according to all kinds of complex-terrains such as road, square, the foot of the hill, lakeside and building sides, average position error can reach about 250 meters, suitable general to positioning accuracy request, but the bigger occasion of deal with data amount.
Description of drawings
Accompanying drawing described herein has been used to be provided further understanding of the present invention, constitutes the application's a part, and illustrative examples of the present invention and explanation thereof are used to explain the present invention, do not constitute improper qualification of the present invention.Wherein:
Fig. 1 is the flow chart according to the method for quick localisation of mobile terminals in the cellular network of the embodiment of the invention;
Fig. 2 is based on an example of the present invention and shows base station in the GSM network sends to the measurement report data record of base station controller by the ABIS interface form.
Fig. 3 is based on an example of the present invention and shows the form that the measurement report data record of network side was intercepted and sent to end side in the GSM network;
Embodiment
In the following description, provided some detail so that fully understanding to a plurality of embodiment of the present invention.But, those skilled in the art do not have these details can realize the present invention as can be known yet.In other cases, there are not detailed expression or description and the relevant known configurations of equipment such as computer, transmission medium, measuring equipment, recording equipment, to avoid unnecessary interference description to the embodiment of the invention.
Unless content needs, otherwise in specification and claims, word " comprises " and change the meaning of " comprising " of being understood as that evolution, promptly " includes, but are not limited to ".
About the description of " sub-district ", " Serving cell " and " adjacent area " notion, based on the general knowledge of this area, the three has different implications in the literary composition, and " sub-district " extension of conception has included " Serving cell " and " adjacent area ".
The present invention proposes the method for localisation of mobile terminals in a kind of cellular network, improved positioning accuracy, and can be applied in the cellular network of multiple standard.As shown in Figure 1, the method according to quick localisation of mobile terminals in the cellular network of the embodiment of the invention may further comprise the steps:
Step S01 utilizes the cellular network interface snooping equipment, as Signaling Analyzer, intercepts the interface between base station and the base station controller, and to obtain a group measurement reporting of corresponding target terminal, the data format of measurement report as shown in Figure 2.The data format of " measurement report that MS reports " among Fig. 2 as shown in Figure 3.One group measurement reporting comprises the measurement report data record of the constant duration record of some (being generally less than 60); For GSM or cdma system, the data record of every measurement report comprises following parameter: timestamp, Serving cell sign, Serving cell received signal level, the Broadcast Control Channel of several (maximum 6, minimum 0) adjacent areas number, base station identity code, received signal level.
CDMA2000, WCDMA or TD-SCDMA system for 3G, every the measurement report data record comprises following parameter: timestamp, the Serving cell sign, the P-CCPCH received signal code power of Serving cell, common signal channel center frequency point, scrambler, the P-CCPCH received signal code power of several (maximum 6, minimum 0) adjacent areas.
For GSM or cdma system, the interface between base station and the base station controller is meant the ABIS interface; For the CDMA2000 system, the interface between base station and the base station controller is meant the ABIS interface; For WCDMA or TD-SCDMA system, the interface between base station and the base station controller is meant Iub interface.
Step S02 obtains the engineering parameter table from network operation maintenance centre;
The engineering parameter table comprises the several rows data record, and each line data writes down the configuration parameter of a sub-district in unique corresponding objective network.
For GSM or cdma system, each line data record has all comprised following configuration parameter: geographical position, cell ID, affiliated basic station number, adjacent area Broadcast Control Channel number, neighbor base station identification code;
For CDMA2000, WCDMA or the TD-SCDMA system of 3G, each line data record has all comprised following configuration parameter: geographical position, cell ID, affiliated basic station number, adjacent area common signal channel center frequency point, adjacent area scrambler.
Step S03, write down the Serving cell that comprises for each bar measurement report data, in the engineering parameter table, carry out match search, with the geographical position that obtains this Serving cell, affiliated base station, matching process is: search the data line record that has comprised the same cells sign in the engineering parameter table, as the engineering parameter data record of this Serving cell correspondence.
Step S04, write down each adjacent area that comprises for each bar measurement report data, in the engineering parameter table, carry out match search, with the geographical position that obtains this sub-district, affiliated base station, matching process is: for gsm system or cdma system, search the data record row that comprises identical broadcasts control channel number and base station identity code in the engineering parameter table; For CDMA2000, WCDMA or TD-SCDMA system, in the engineering parameter table, search the data record row that comprises identical common signal channel center frequency point and scrambler.
Step S05, write down each adjacent area that comprises for each bar measurement report data, when the record line number order of the coupling that searches greater than 1 the time, geographical position according to the sub-district in the geographical position of the Serving cell of this measurement report data record and many data record in the engineering parameter table, matching, distance between difference calculation services sub-district and the data record respective cell, that data line record of a selected distance value minimum then is as the engineering parameter data record of this adjacent area correspondence.
Step S06, each adjacent area that comprises for each bar measurement report data record, according to the geographical position of the Serving cell of this measurement report data record and the geographical position of this adjacent area, the distance between calculation services sub-district and the adjacent area, when this distance greater than f
dWhen rice, then in thereafter step S07, the sub-district described in the S08, get rid of this adjacent area; f
dBe empirical coefficient, general value is a 2000-3500 rice, is preferably 2640 meters.
Step S07, for each bar measurement report data record, judging whether each sub-district has with this sub-district belongs to the administration of same base station is documented in other sub-district in this measurement report data record equally, if do not have other sub-district and this sub-district when belonging to the administration of same base station, this sub-district belongs to the 1st class sub-district; When there being and only having other sub-district and this sub-district when belonging to the administration of same base station in this measurement report, this sub-district belongs to the 2nd class sub-district; When two other sub-district and this sub-districts when belonging to the administration of same base station are arranged in this measurement report, this sub-district belongs to the 3rd class sub-district.
Step S08, to each the bar measurement report data record in this group measurement reporting data record, according to geographical position, incoming level, the type of its sub-district that comprises, the geographical position at terminal place when calculating this measurement report of generation according to following formula (1):
Wherein, x and y are respectively the longitude and the latitudes at terminal place when producing this measurement report; I is the numbering of each sub-district in this measurement report; According to the order of the sub-district that this measurement report write down, numbering increases progressively successively; Numbering 1 is represented Serving cell; x
iAnd y
iBe respectively the longitude and the latitude at cell i place; For gsm system or cdma system, R
iIt is the received signal level of cell i correspondence; For CDMA2000, WCDMA or TD-SCDMA system, R
iP-CCPCH received signal code power+110dbm for cell i; N is the number of the adjacent area that comprises of this measurement report; T represents the type of cell i; f
tAnd f
1It all is empirical coefficient; f
1Value be generally 1.45,1---2; According to the difference of t, f
tHave following different values:
When cell i belongs to the 1st class sub-district (t=1), f
t∈ (0.75,1.25) is preferably 1;
When cell i belongs to the 2nd class sub-district (t=2), f
t∈ (1.35,2.25) is preferably 1.8;
When cell i belongs to the 3rd class sub-district (t=3), f
t∈ (2.25,3.75) is preferably 3.05;
Step S09, one group of geographic position data at being gone out by formula (1) primary Calculation carries out the arithmetic statistical average of longitude and latitude data respectively, promptly obtains the final geographical position of target terminal.
It should be noted last that, above embodiment is only unrestricted in order to technical scheme of the present invention to be described, although the present invention is had been described in detail with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can make amendment or be equal to replacement technical scheme of the present invention, and not breaking away from the spirit and scope of technical solution of the present invention, it all should be encompassed in the middle of the claim scope of the present invention.
Claims (6)
1. the method for localisation of mobile terminals fast in the cellular network is characterized in that, may further comprise the steps:
Step 1, utilize the cellular network interface snooping equipment to intercept interface between base station and the base station controller, to obtain group measurement reporting data of corresponding target terminal;
Step 2, obtain the engineering parameter table from network operation maintenance centre;
Step 3, each sub-district that each the bar measurement report in these group measurement reporting data is comprised, in the engineering parameter table, carry out match search, with the geographical position that obtains this sub-district, affiliated base station, judge whether this sub-district corresponding parameters is abandoned according to the geographical position of this sub-district;
Step 4, administer and determined the type of this sub-district according to base station under this sub-district by the number of cells of this measurement report record;
Step 5, to each the bar measurement report in this group measurement reporting data record, according to geographical position, incoming level, the type of its sub-district that comprises, the geographical position at terminal place when primary Calculation produces this measurement report;
Step 6, at one group of geographic position data that the 5th step calculates, that carries out longitude data and latitude data respectively carries out arithmetic statistical average, with the geographical position of final acquisition target terminal.
2. the method for quick localisation of mobile terminals in the cellular network according to claim 1 is characterized in that described step 3 specifically may further comprise the steps:
Step a, the Serving cell that comprises for each bar measurement report data record, in the engineering parameter table, carry out match search, matching process with the geographical position that obtains this Serving cell, affiliated base station is: search the data line record that has comprised the same cells sign in the engineering parameter table, as the engineering parameter data record of this Serving cell correspondence;
Step b, each adjacent area that comprises for each bar measurement report data record, in the engineering parameter table, carry out match search, matching process with the geographical position that obtains this sub-district, affiliated base station is: for gsm system or cdma system, search the data record row that comprises identical broadcasts control channel number and base station identity code in the engineering parameter table; For CDMA2000, WCDMA or TD-SCDMA system, in the engineering parameter table, search the data record row that comprises identical common signal channel center frequency point and scrambler;
Step c, each adjacent area that comprises for each bar measurement report data record, when the record line number order of the coupling that searches greater than 1 the time, geographical position according to the sub-district in the geographical position of the Serving cell of this measurement report data record and many data record in the engineering parameter table, matching, distance between difference calculation services sub-district and the data record respective cell, that data line record of a selected distance value minimum then is as the engineering parameter data record of this adjacent area correspondence;
Steps d, each adjacent area that comprises for each bar measurement report data record, according to the geographical position of the Serving cell of this measurement report data record and the geographical position of this adjacent area, the distance between calculation services sub-district and the adjacent area, when this distance greater than f
dWhen rice, then in thereafter step S07, the sub-district described in the S08, get rid of this adjacent area; f
dBe empirical coefficient, value is a 2000-3500 rice.
3. the method for quick localisation of mobile terminals is characterized in that described f in the cellular network according to claim 2
dBe preferably 2640 meters.
4. according to the quick method of localisation of mobile terminals in claim 2 or the 3 described cellular networks, it is characterized in that, described step 4 specifically comprises: write down each adjacent area that comprises for each bar measurement report data, when the record line number order of the coupling that searches greater than 1 the time, geographical position according to the sub-district in the geographical position of the Serving cell of this measurement report data record and many data record in the engineering parameter table, matching, distance between difference calculation services sub-district and the data record respective cell, that data line record of a selected distance value minimum then is as the engineering parameter data record of this adjacent area correspondence.
5. the method for quick localisation of mobile terminals in the cellular network according to claim 4, it is characterized in that, described step 5 specifically comprises: to each the bar measurement report data record in this group measurement reporting data record, according to geographical position, incoming level, the type of its sub-district that comprises, the geographical position at terminal place when calculating this measurement report of generation according to following formula (1):
Wherein, x and y are respectively the longitude and the latitudes at terminal place when producing this measurement report; I is the numbering of each sub-district in this measurement report; According to the order of the sub-district that this measurement report write down, numbering increases progressively successively; Numbering 1 is represented Serving cell; x
iAnd y
iBe respectively the longitude and the latitude at cell i place; For gsm system or cdma system, R
iIt is the received signal level of cell i correspondence; For CDMA2000, WCDMA or TD-SCDMA system, R
iP-CCPCH received signal code power+110dbm for cell i; N is the number of the adjacent area that comprises of this measurement report; T represents the type of cell i; f
tAnd f
1It all is empirical coefficient; f
1Value be generally 1-2, f
1Be preferably 1.45; According to the difference of t, f
tHave following different values:
When cell i belongs to the 1st class sub-district, f
t∈ (0.75,1.25); When cell i belongs to the 2nd class sub-district, f
t∈ (1.35,2.25); When cell i belongs to the 3rd class sub-district, f
t∈ (2.25,3.75).
6. the method for quick localisation of mobile terminals is characterized in that in the cellular network according to claim 5, when cell i belongs to the 1st class sub-district, and f
tBe preferably 1; When cell i belongs to the 2nd class sub-district, f
tBe preferably 1.8; When cell i belongs to the 3rd class sub-district, f
tBe preferably 3.05.
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WO2014015839A1 (en) * | 2012-07-27 | 2014-01-30 | 华为技术有限公司 | Positioning method, control device, and mobile communication system |
CN103747525B (en) * | 2014-01-26 | 2017-10-24 | 林汉忠 | A kind of compound alignment system based on mobile communications network |
CN108024327A (en) * | 2016-11-04 | 2018-05-11 | 中国电信股份有限公司 | Method for positioning user and device |
CN110012416A (en) * | 2017-12-29 | 2019-07-12 | 中国移动通信集团浙江有限公司 | A kind of localization method and device of user terminal |
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US20060240844A1 (en) * | 2002-11-18 | 2006-10-26 | Polaris Wireless Inc. | Computationally-Efficient Estimation of the Location of a Wireless Terminal Based on Pattern Matching |
CN101248680A (en) * | 2005-07-05 | 2008-08-20 | 凯锐恩Iq公司 | Rule based data collection and management in a wireless communications network |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2014015839A1 (en) * | 2012-07-27 | 2014-01-30 | 华为技术有限公司 | Positioning method, control device, and mobile communication system |
US10101434B2 (en) | 2012-07-27 | 2018-10-16 | Huawei Technologies Co., Ltd | Positioning method, control device, and mobile communications system |
CN103747525B (en) * | 2014-01-26 | 2017-10-24 | 林汉忠 | A kind of compound alignment system based on mobile communications network |
CN108024327A (en) * | 2016-11-04 | 2018-05-11 | 中国电信股份有限公司 | Method for positioning user and device |
CN108024327B (en) * | 2016-11-04 | 2021-01-08 | 中国电信股份有限公司 | User positioning method and device |
CN110012416A (en) * | 2017-12-29 | 2019-07-12 | 中国移动通信集团浙江有限公司 | A kind of localization method and device of user terminal |
CN110012416B (en) * | 2017-12-29 | 2021-03-02 | 中国移动通信集团浙江有限公司 | User terminal positioning method and device |
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Application publication date: 20110413 |