CN103139901B - The localization method of TD-SCDMA mobile phone terminal - Google Patents
The localization method of TD-SCDMA mobile phone terminal Download PDFInfo
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- CN103139901B CN103139901B CN201310095092.1A CN201310095092A CN103139901B CN 103139901 B CN103139901 B CN 103139901B CN 201310095092 A CN201310095092 A CN 201310095092A CN 103139901 B CN103139901 B CN 103139901B
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Abstract
The invention discloses a kind of localization method for TD-SCDMA mobile phone terminal is positioned, force to be drawn in pseudo-base station by target mobile phones terminal, by being synchronized to the particular time-slot of target terminal place TD-SCDMA subframe, measurement by the subframe particular time-slot to target mobile phones terminal place, just can more accurately identify target terminal position, it is thus possible to more correctly find target mobile phones terminal, complete positioning function.
Description
Technical field
The invention belongs to the pressure location technology of mobile phone terminal, be specifically related to the localization method of a kind of TD-SCDMA mobile phone terminal.
Background technology
The 3G (Third Generation) Moblie standard (being called for short 3G) that TD-SCDMA proposes as China, formal since ITU (International Telecommunication Association) submission from 1998, experience the time of more than ten years.TD-SCDMA is owing to adopting time division duplex, and upper and lower provisional capital is on same frequency, and uplink and downlink channel characteristic is basically identical, and therefore, base station is easy according to receiving Signal estimation uplink and downlink channel Property comparison.Additionally, TD-SCDMA uses intelligent antenna technology to have an inborn advantage, and the advantage that the use of intelligent antenna technology introduces SDMA, it is possible to reduce inter-user interference, thus improving the availability of frequency spectrum.The advantage that TD-SCDMA also has TDMA, it is possible to arrange the ratio of uplink and downlink time slot flexibly and adjust the ratio of the data rate of uplink and downlink, is particularly suitable in internet service that upstream data is few and occasion that downlink data is many.
For needing demand that TD-SCDMA target mobile phones terminal is positioned, owing to the upper and lower provisional capital of TD-SCDMA is at same frequency, if by testing the method that the method for all time slot signals of whole frequency carrys out the signal intensity of test target terminal, can cause the signal strength measurement of target terminal own inaccurate because Base Transmitter signal energy is relatively larger, finally result in and target terminal location is existed very big deviation.The present invention is therefore.
Summary of the invention
Present invention aim at providing a kind of coordinates pseudo-base station to carry out paging control, TD-SCDMA target mobile phones terminal is made to be constantly in peak signal emission state, and then the particular time-slot at target mobile phones terminal uplink signal place is transmitted the localization method that the change of direction and power level measures, thus completing the location to target terminal.
In order to solve these problems of the prior art, present invention provide the technical scheme that
A kind of localization method of TD-SCDMA mobile phone terminal, it is characterized in that described method builds pseudo-base station independent of grand net network in advance, pseudo-base station is arranged to the Lin Qu base station of grand net network, minimum principle is interfered according to pseudo-base station and grand net network, the PLMN scanning grand net network and obtaining, frequency, LAI, Cellparaid information is used to configure, and with suitable power emission base station signal；Comprise the following steps:
(1) monitored TD-SCDMA target mobile phones terminal is carried out continuous print paging operation by pseudo-base station, TD-SCDMA target mobile phones terminal is made automatically to be drawn to pseudo-base station Suo Jian community, and TD-SCDMA target mobile phones terminal is under the control of pseudo-base station, constantly send upward signal with maximum transmitting power；
(2) location equipment is by, after carrying out time synchronized with the signal of pseudo-base station, measuring continuously TD-SCDMA target mobile phones terminal uplink signal place time slot to be monitored, estimation TD-SCDMA target mobile phones terminal direction and with location equipment distance.
Preferably, in described method step (2), the direction of TD-SCDMA target mobile phones terminal is by using beam antenna that the direction at TD-SCDMA target mobile phones terminal place is tested；When the signal intensity accepting target terminal time slot in the direction of certain is maximum, it is judged that the direction of beam antenna indication is the direction at TD-SCDMA target mobile phones terminal place.
Preferably, in described method step (2), TD-SCDMA target mobile phones terminal is determining on the basis in direction at TD-SCDMA target mobile phones terminal place with the distance of location equipment, by running fix equipment on the direction at TD-SCDMA target mobile phones terminal place, according to the distance between time slot power diversity judgement TD-SCDMA target mobile phones terminal and location equipment that location equipment is tested.
Preferably, in described method, location equipment is hand-held position finder.
The position of TD-SCDMA target mobile phones terminal is force to be drawn in pseudo-base station by target mobile phones terminal by technical solution of the present invention, by being synchronized to the particular time-slot of target terminal place TD-SCDMA subframe, measurement by the subframe particular time-slot to target mobile phones terminal place, just can more accurately identify target terminal position, it is thus possible to more correctly find target mobile phones terminal, complete positioning function.
The method that concrete TD-SCDMA target mobile phones terminal positions, comprises the following steps:
A) initial, TD-SCDMA target mobile phones terminal is normally in the grand net network of operator.
B) TD-SCDMA testing mobile phone (or the mobile phone with engineering mode) is used to scan grand net network, it is thus achieved that the information that pseudo-base station is necessary, for instance: the information such as PLMN, frequency, LAI, Cellparaid.
C) start shooting independent of the pseudo-base station of grand net work, minimum principle is interfered according to pseudo-base station and grand net, use information b) obtained: selected one, grand net base station is specifically faced district's parameter and the information such as the PLMN of pseudo-base station, frequency, LAI, Cellparaid is configured, pseudo-base station is arranged to base station, Hong Wanglin district, and with suitable power emission base station signal.
D) TD-SCDMA target mobile phones terminal can automatically be drawn to pseudo-base station Suo Jian community.
E) TD-SCDMA target mobile phones terminal to be monitored is carried out continuous print paging operation by pseudo-base station so that target mobile phones terminal, under the control of pseudo-base station, constantly sends upward signal with maximum transmitting power.
F) location equipment is by, after carrying out time synchronized with the signal of pseudo-base station, measuring continuously TD-SCDMA target terminal upward signal place particular time-slot to be monitored.
The concrete grammar of measurement is as follows:
1) by using beam antenna that the direction at target terminal place is tested.When the signal intensity accepting target terminal time slot in the direction of certain is maximum, it is possible to judge the direction that direction is target terminal place of beam antenna indication.
2) on the direction of target terminal, when the time slot power that location equipment is tested becomes big, show that location equipment is close to target terminal, when the time slot power that hand-held position finder is tested diminishes, show that hand-held position finder is in wide terminal, simultaneously by measuring signal power size, use Propagation models of electromagnetic wave propagation can substantially calculate the distance between target terminal and hand-held position finder, complete the location to target terminal.
The principle of technical solution of the present invention is by by location equipment precise synchronization to the frequency at target terminal place and time slot, avoid the shortcoming that the measurement of whole frequency can not be distinguished base station and other interference signal sources, so that location device measuring to target terminal signal transmission direction and time slot signal intensity measure more accurately, the positioning precision of target terminal is greatly improved
Relative to scheme of the prior art, the invention have the advantage that
Technical solution of the present invention will by after carrying out time synchronized with pseudo-base station signal, location equipment can precise synchronization to the particular time-slot at target terminal place.In the cooperation of pseudo-base station, and target terminal being carried out under paging control, target terminal can be positioned by location equipment more accurately.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the invention will be further described:
Fig. 1 positions equipment and forces to be drawn to the mobile phone that pseudo-base station is set up by grand online target mobile phones terminal.
Fig. 2 positions equipment and is synchronized to the time slot TS1 at target mobile phones terminal place.
Detailed description of the invention
Below in conjunction with specific embodiment, such scheme is described further.Should be understood that these embodiments to be an illustration for the present invention and be not limited to restriction the scope of the present invention.The implementation condition adopted in embodiment can do further adjustment according to the condition of concrete producer, and not marked implementation condition is generally the condition in normal experiment.
Embodiment
As depicted in figs. 1 and 2, the localization method of this TD-SCDMA mobile phone terminal builds pseudo-base station independent of grand net network in advance, pseudo-base station is arranged to the Lin Qu base station of grand net network, minimum principle is interfered according to pseudo-base station and grand net network, the PLMN scanning grand net network and obtaining, frequency, LAI, Cellparaid information is used to configure, and with suitable power emission base station signal；Position according to following steps:
(1) monitored TD-SCDMA target mobile phones terminal is carried out continuous print paging operation by pseudo-base station, TD-SCDMA target mobile phones terminal is made automatically to be drawn to pseudo-base station Suo Jian community, and TD-SCDMA target mobile phones terminal is under the control of pseudo-base station, constantly send upward signal with maximum transmitting power；
(2) location equipment is by, after carrying out time synchronized with the signal of pseudo-base station, measuring continuously TD-SCDMA target mobile phones terminal uplink signal place time slot to be monitored, estimation TD-SCDMA target mobile phones terminal direction and with location equipment distance.
Operation principle and the flow process of system are only described with particular time-slot and frequency below.Its principle is also applied for TDD-LTE system and other similar TDD(time division multiple acesses with flow process) system.Location equipment adopts hand-held position finder, and the localization method that TD-SCDMA target mobile phones terminal is positioned specifically carries out in accordance with the following steps:
(1), when starting, TD-SCDMA target mobile phones terminal works is in community, grand net network place, for instance: frequency is in 2010.8MHz(community 1).Grand net network approximate location residing for mobile phone can be obtained by number of ways, for instance: can inquire below some community of TD-SCDMA target mobile phones terminal resident by operator.
(2) using testing mobile phone test, to obtain frequency be 2010.8MHz(community 1) grand net network cell system message in find a 2012.4MHz(community 2) Lin Qu, testing mobile phone test simultaneously finds in test point 2012.4MHz(community 2) signal smaller (such as: less than-90dBm) of community.2012.4MHz(community 2) relevant information: working frequency points is 2012.4MHz, LAI is 43047, Cellparaid is 5.
(3) pseudo-base station is carried out parameter configuration.Its running parameter is configured to and 2012.4MHz(community 2) completely the same, and by 2012.4MHz(community 2) signal power be adjusted at least above 2010.8MHz(community 1) 6dB, for instance: the working frequency points of pseudo-base station community, LAI, Cellparaid are respectively set to 2012.4MHz, 43047,5.Pseudo-base station being started shooting, pseudo-base station will set up pseudo-base station community automatically according to the parameter of configuration, broadcasts the base station signal of simulated Lin Qu in coverage, and mobile phone will detect pseudo-base station signal.
(4) target mobile phones terminal will automatically by from 2010.8MHz(community 1) it is drawn to 2012.4MHz(community 2), pseudo-base station.As it is shown in figure 1, the ascending time slot of target mobile phones terminal is assigned to: TS1.
(5) target mobile phones terminal is carried out paging continuously by pseudo-base station so that target mobile phones terminal constantly sends upward signal with peak power at TS1.
(6) operating frequency positioning equipment is set to pseudo-base station working frequency points 2012.4MHz(community 2), follow the tracks of time slot and be set to TS1.Location equipment is started working, and carry out with pseudo-base station synchronize after, then by reception information time slot adjustment at TS1, persistently receive and calculate TS1 signal power.
(7) beam antenna is used to carry out 360 degree of comprehensive scannings, when the signal intensity of TS1 is maximum on certain specific direction, it is possible to judge the direction that direction is target mobile phones terminal place of beam antenna indication.
(8) on the direction at target mobile phones terminal place, running fix equipment (hand-held position finder), when the TS1 power that location equipment is tested diminishes, it was shown that hand-held position finder is in wide terminal；When TS1 power that location equipment is tested becomes big, it was shown that location equipment is close to target terminal.
(9) on the direction at target mobile phones terminal place, test, along location equipment, the direction that TS1 power becomes larger, close to target mobile phones terminal, be finally completed the location to target terminal.
Examples detailed above only for technology design and the feature of the present invention are described, its object is to allow person skilled in the art be able to understand present disclosure and implement according to this, can not limit the scope of the invention with this.All equivalent transformations done according to spirit of the invention or modification, all should be encompassed within protection scope of the present invention.
Claims (4)
1. the localization method of a TD-SCDMA mobile phone terminal, it is characterized in that described method builds pseudo-base station independent of grand net network in advance, pseudo-base station is arranged to the Lin Qu base station of grand net network, minimum principle is interfered according to pseudo-base station and grand net network, the PLMN scanning grand net network and obtaining, frequency, LAI, Cellparaid information is used to configure, and make the signal power 6dB at least bigger than the signal power of Hong Wang community of pseudo-base station, with suitable power emission base station signal；Comprise the following steps:
(1) monitored TD-SCDMA target mobile phones terminal is carried out continuous print paging operation by pseudo-base station, TD-SCDMA target mobile phones terminal is made automatically to be drawn to pseudo-base station Suo Jian community, the ascending time slot making TD-SCDMA target mobile phones terminal is assigned to time slot TS1, and TD-SCDMA target mobile phones terminal is under the control of pseudo-base station, constantly sends upward signal with maximum transmitting power at TS1；
(2) operating frequency of location equipment is set to the operating frequency of pseudo-base station, follow the tracks of time slot and be set to TS1, location equipment is by after carrying out time synchronized with the signal of pseudo-base station, signal slot adjustment will be received at TS1, TD-SCDMA target mobile phones terminal uplink signal place time slot to be monitored is measured continuously, estimation TD-SCDMA target mobile phones terminal direction and with location equipment distance.
2. method according to claim 1, it is characterised in that in described method step (2), the direction of TD-SCDMA target mobile phones terminal is by using beam antenna that the direction at TD-SCDMA target mobile phones terminal place is tested；When the signal intensity accepting target terminal time slot in the direction of certain is maximum, it is judged that the direction of beam antenna indication is the direction at TD-SCDMA target mobile phones terminal place.
3. method according to claim 2, it is characterized in that in described method step (2), the distance of TD-SCDMA target mobile phones terminal and location equipment is to determine on the basis in direction at TD-SCDMA target mobile phones terminal place, by running fix equipment on the direction at TD-SCDMA target mobile phones terminal place, according to the distance between time slot power diversity judgement TD-SCDMA target mobile phones terminal and location equipment that location equipment is tested.
4. method according to claim 3, it is characterised in that in described method, location equipment is hand-held position finder.
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| CN201310095092.1A CN103139901B (en) | 2013-03-22 | 2013-03-22 | The localization method of TD-SCDMA mobile phone terminal |
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| CN201310095092.1A CN103139901B (en) | 2013-03-22 | 2013-03-22 | The localization method of TD-SCDMA mobile phone terminal |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104202819A (en) * | 2014-09-29 | 2014-12-10 | 重庆大学 | Mobile phone positioning method and system |
| CN104619012A (en) * | 2014-12-31 | 2015-05-13 | 中兴仪器（深圳）有限公司 | Mobile terminal position acquisition method and system |
| CN110430533A (en) * | 2019-08-26 | 2019-11-08 | 浙江三维通信科技有限公司 | Mobile terminal locating method, device, system, computer equipment and storage medium |
| CN111935719B (en) * | 2020-09-25 | 2020-12-18 | 南京嘉环科技股份有限公司 | Pseudo base station identification and positioning method and vehicle-mounted system |
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| CN1220069A (en) * | 1996-05-27 | 1999-06-16 | 诺基亚电信公司 | Method for determining position of mobile station |
| CN102413565A (en) * | 2011-12-06 | 2012-04-11 | 大唐移动通信设备有限公司 | Method and device for determining position of terminal |
| CN102883267A (en) * | 2012-09-25 | 2013-01-16 | 武汉邮电科学研究院 | Method for positioning long term evolution (LTE) terminal in cell range |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1220069A (en) * | 1996-05-27 | 1999-06-16 | 诺基亚电信公司 | Method for determining position of mobile station |
| CN102413565A (en) * | 2011-12-06 | 2012-04-11 | 大唐移动通信设备有限公司 | Method and device for determining position of terminal |
| CN102883267A (en) * | 2012-09-25 | 2013-01-16 | 武汉邮电科学研究院 | Method for positioning long term evolution (LTE) terminal in cell range |
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Address after: Linquan street Suzhou Industrial Park in Jiangsu province 215123 No. 399 southeast hospital (1) Room 408 Patentee after: Suzhou wisdom casting communication Polytron Technologies Inc Patentee after: Shanghai Spideradio Telecommunication Technology Co., Ltd. Address before: Linquan Road District of Suzhou City Dushu Lake Higher Education in Jiangsu province 215123 No. 399 National University Science Park of Southeast University (Suzhou), Southeast (1) Room 408 Patentee before: Suzhou Spideradio Telecommunication Technology Co., Ltd. Patentee before: Shanghai Spideradio Telecommunication Technology Co., Ltd. |