CN103139901A - Positioning method of time division-synchronization code division multiple access (TD-SCDMA) mobile phone terminal - Google Patents
Positioning method of time division-synchronization code division multiple access (TD-SCDMA) mobile phone terminal Download PDFInfo
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- CN103139901A CN103139901A CN2013100950921A CN201310095092A CN103139901A CN 103139901 A CN103139901 A CN 103139901A CN 2013100950921 A CN2013100950921 A CN 2013100950921A CN 201310095092 A CN201310095092 A CN 201310095092A CN 103139901 A CN103139901 A CN 103139901A
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Abstract
The invention discloses a positioning method of a time division-synchronization code division multiple access (TD-SCDMA) mobile phone terminal. A target mobile phone terminal is forcibly dragged to a pseudo-base-station. Through a special time slot which is synchronized to a TD- SCDMA sub-frame in which the target terminal is located, and measurement to the sub-frame special time slot in which the target mobile phone terminal is located, the position in which the target terminal is located can be precisely identified, and therefore the target mobile phone terminal can be more precisely found and the positioning function can be completed.
Description
Technical field
The invention belongs to the pressure location technology of mobile phone terminal, be specifically related to a kind of localization method of TD-SCDMA mobile phone terminal.
Background technology
The 3G (Third Generation) Moblie standard that TD-SCDMA proposes as China (being called for short 3G) since 1998 formally submit to ITU (International Telecommunication Association), has experienced the time of more than ten years.TD-SCDMA is owing to adopting time division duplex, and the provisional capital, up and down is on same frequency, and the uplink and downlink channel characteristic is basically identical, and therefore, the base station is easier to according to receiving Signal estimation uplink and downlink channel characteristic ratio.In addition, TD-SCDMA uses intelligent antenna technology that inborn advantage is arranged, and the advantage of SDMA has been introduced in the use of intelligent antenna technology, can reduce inter-user interference, thereby improves the availability of frequency spectrum.TD-SCDMA also has advantages of TDMA, can the ratio of uplink and downlink time slot be set flexibly and adjust the ratio of the data rate of uplink and downlink, is particularly suitable for few and the occasion that downlink data is many of upstream data in internet service.
For the demand that need to position TD-SCDMA target mobile phones terminal, due to provisional capital, TD-SCDMA up and down at same frequency, if come the method for the signal strength signal intensity of test target terminal by the method for testing whole all time slot signals of frequency, meeting cause the signal strength measurement of target terminal own inaccurate because the base station transmit signals energy comparison is large, cause at last the very large deviation of target terminal location existence.The present invention therefore.
Summary of the invention
The object of the invention is to provide a kind of cooperation pseudo-base station to carry out paging and controls, make TD-SCDMA target mobile phones terminal be in the peak signal emission state always, and then the particular time-slot at target mobile phones terminal upward signal place is carried out the localization method that the variation of transmission direction and power level is measured, thereby complete the location to target terminal.
In order to solve these problems of the prior art, technical scheme provided by the invention is:
A kind of localization method of TD-SCDMA mobile phone terminal, it is characterized in that building in advance in described method the pseudo-base station that is independent of grand net network, pseudo-base station is arranged to the Lin Qu base station of grand net network, according to pseudo-base station and grand net network phase mutual interference minimum principle, PLMN, frequency, LAI, the Cellparaid information of using the grand net network of scanning to obtain are configured, and with suitable power emission base station signal; Comprise the following steps:
(1) continuous paging operation is carried out to monitored TD-SCDMA target mobile phones terminal in pseudo-base station, make TD-SCDMA target mobile phones terminal automatically be drawn to residential quarter that pseudo-base station is built, and TD-SCDMA target mobile phones terminal is under the control of pseudo-base station, and constantly the transmitting power with maximum sends upward signal;
(2) after positioning equipment carries out time synchronized by the signal with pseudo-base station, carry out continuous measurement to wanting monitored TD-SCDMA target mobile phones terminal upward signal place time slot, the direction of estimation TD-SCDMA target mobile phones terminal and with the distance of positioning equipment.
Preferably, the direction of TD-SCDMA target mobile phones terminal is by using directional antenna that the direction at TD-SCDMA target mobile phones terminal place is tested in described method step (2); When the signal strength signal intensity of accepting the target terminal time slot in the direction of certain was maximum, the direction of judgement directional antenna indication was the direction at TD-SCDMA target mobile phones terminal place.
Preferably, the distance of TD-SCDMA target mobile phones terminal and positioning equipment is on the basis of the direction at definite TD-SCDMA target mobile phones terminal place in described method step (2), by running fix equipment on the direction at TD-SCDMA target mobile phones terminal place, the time slot power diversity judgement TD-SCDMA target mobile phones terminal of testing according to positioning equipment and the distance between positioning equipment.
Preferably, in described method, positioning equipment is hand-held position indicator.
Technical solution of the present invention is that the target mobile phones terminal is forced to be drawn on pseudo-base station to the position of TD-SCDMA target mobile phones terminal, by being synchronized to the particular time-slot of target terminal place TD-SCDMA subframe, by the measurement to the subframe particular time-slot at target mobile phones terminal place, just can more accurately identify the target terminal position, thereby can find more exactly the 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 normally is in the grand net network of operator.
B) use the TD-SCDMA testing mobile phone mobile phone of engineering mode (perhaps with) the grand net network of scanning, obtain the information of pseudo-base station necessity, such as: the information such as PLMN, frequency, LAI, Cellparaid.
C) be independent of the pseudo-base station start of grand net work, according to pseudo-base station and grand net phase mutual interference minimum principle, use b) information that obtains: one of selected grand net base station is specifically faced district's parameter PLMN, frequency, the information such as LAI, Cellparaid of pseudo-base station is configured, pseudo-base station is arranged to the Lin Qu base station of grand net, and with suitable power emission base station signal.
D) TD-SCDMA target mobile phones terminal can automatically be drawn to residential quarter that pseudo-base station is built.
E) pseudo-base station to wanting monitored TD-SCDMA target mobile phones terminal to carry out continuous paging operation, makes the target mobile phones terminal under the control of pseudo-base station, and constantly the transmitting power with maximum sends upward signal.
F) after positioning equipment carries out time synchronized by the signal with pseudo-base station, carry out continuous measurement to wanting monitored TD-SCDMA target terminal upward signal place particular time-slot.
The concrete grammar of measuring is as follows:
1) by using directional antenna that the direction at target terminal place is tested.When the signal strength signal intensity of accepting the target terminal time slot in the direction of certain was maximum, the direction that just can judge the directional antenna indication was the direction at target terminal place.
2) on the direction of target terminal, when the time slot power of testing when positioning equipment becomes large, show that positioning equipment is near target terminal, when the time slot power of testing when hand-held position indicator diminishes, show that hand-held position indicator is in the wide terminal, by measuring the signal power size, the use Propagation models of electromagnetic wave propagation can roughly calculate the distance between target terminal and hand-held position indicator, completes the location to target terminal simultaneously.
The principle of technical solution of the present invention is by with frequency and the time slot of positioning equipment precise synchronization to the target terminal place, avoided whole frequency is measured and can not be distinguished the shortcoming of base station and other interference signal sources, thereby make target terminal side signal transmission that positioning equipment measures to measuring more accurately with time slot signal intensity, positioning accuracy to target terminal improves greatly
With respect to scheme of the prior art, advantage of the present invention is:
Technical solution of the present invention will be by after carrying out time synchronized with pseudo-base station signal, positioning equipment can precise synchronization to the particular time-slot at target terminal place.Cooperation in pseudo-base station, and target terminal is carried out under paging control, positioning equipment can be located more accurately to target terminal.
Description of drawings
The invention will be further described below in conjunction with drawings and Examples:
Fig. 1 positioning equipment forces to be drawn to grand online target mobile phones terminal the mobile phone that pseudo-base station is set up.
Fig. 2 positioning equipment is synchronized to the time slot TS1 at target mobile phones terminal place.
Embodiment
Below in conjunction with specific embodiment, such scheme is described further.Should be understood that these embodiment are not limited to limit the scope of the invention for explanation the present invention.The implementation condition that adopts in embodiment can be done 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, build in advance the pseudo-base station that is independent of grand net network in the localization method of this TD-SCDMA mobile phone terminal, pseudo-base station is arranged to the Lin Qu base station of grand net network, according to pseudo-base station and grand net network phase mutual interference minimum principle, PLMN, frequency, LAI, the Cellparaid information of using the grand net network of scanning to obtain are configured, and with suitable power emission base station signal; Position according to following steps:
(1) continuous paging operation is carried out to monitored TD-SCDMA target mobile phones terminal in pseudo-base station, make TD-SCDMA target mobile phones terminal automatically be drawn to residential quarter that pseudo-base station is built, and TD-SCDMA target mobile phones terminal is under the control of pseudo-base station, and constantly the transmitting power with maximum sends upward signal;
(2) after positioning equipment carries out time synchronized by the signal with pseudo-base station, carry out continuous measurement to wanting monitored TD-SCDMA target mobile phones terminal upward signal place time slot, the direction of estimation TD-SCDMA target mobile phones terminal and with the distance of positioning equipment.
The below only comes operation principle and the flow process of illustrative system with particular time-slot and frequency.Its principle and flow process also are applicable to TDD-LTE system and other similar TDD(time division multiple accesses) system.Positioning equipment adopts hand-held position indicator, and the localization method that TD-SCDMA target mobile phones terminal is positioned specifically carries out in accordance with the following steps:
(1) when beginning, TD-SCDMA target mobile phones terminal works is in residential quarter, grand net network place, for example: frequency is in the 2010.8MHz(residential quarter 1).The residing grand net network approximate location of mobile phone can obtain by number of ways, for example: can inquire below TD-SCDMA target mobile phones terminal some residential quarters resident by operator.
(2) the use test mobile phone test to obtain frequency be 2010.8MHz(residential quarter 1) grand net network cell system message in find a 2012.4MHz(residential quarter 2) Lin Qu, testing mobile phone test simultaneously finds in test point 2012.4MHz(residential quarter 2) signal of residential quarter smaller (for example: less than-90dBm).2012.4MHz(relevant information residential quarter 2): working frequency points is that 2012.4MHz, LAI are 43047, Cellparaid is 5.
(3) parameter configuration is carried out in pseudo-base station.Its running parameter is configured to and 2012.4MHz(residential quarter 2) in full accord, and with 2012.4MHz(residential quarter 2) signal power be adjusted at least greater than 2010.8MHz(residential quarter 1) 6dB, for example: the working frequency points of pseudo-base station cell, LAI, Cellparaid are set to respectively 2012.4MHz, 43047,5.With the start of pseudo-base station, pseudo-base station cell will be set up according to the parameter of configuration automatically in pseudo-base station, the base station signal of the broadcasting Lin Qu that simulates in coverage, and mobile phone will detect pseudo-base station signal.
(4) the target mobile phones terminal will be automatically by from the 2010.8MHz(residential quarter 1) be drawn to 2012.4MHz(residential quarter 2), pseudo-base station.As shown in Figure 1, the ascending time slot of target mobile phones terminal is assigned to: TS1.
(5) paging is continuously carried out to the target mobile phones terminal in pseudo-base station, makes the target mobile phones terminal constantly send upward signal with maximum power at TS1.
(6) operating frequency of positioning equipment is set to working frequency points 2012.4MHz(residential quarter, pseudo-base station 2), follow the tracks of time slot and be set to TS1.Positioning equipment is started working, and with after synchronizeing in pseudo-base station, then will receive the information time slot and be adjusted at TS1, continues to receive and calculate the TS1 signal power.
(7) use directional antenna to carry out the 360 comprehensive scannings of degree, when the signal strength signal intensity of TS1 on certain specific direction was maximum, the direction that just can judge the directional antenna indication was the direction at target mobile phones terminal place.
(8) on the direction at target mobile phones terminal place, running fix equipment (hand-held position indicator) when the TS1 power of testing when positioning equipment diminishes, shows that hand-held position indicator is in the wide terminal; When the TS1 power of testing when positioning equipment becomes large, show that positioning equipment is near target terminal.
(9) on the direction at target mobile phones terminal place, test TS1 power along positioning equipment and become gradually large direction, near the target mobile phones terminal, finally complete the location to target terminal.
Above-mentioned example only is explanation technical conceive of the present invention and characteristics, and its purpose is to allow the person skilled in the art can understand content of the present invention and implement according to this, can not limit protection scope of the present invention with this.All equivalent transformations that Spirit Essence is done according to the present invention or modification are within all should being encompassed in protection scope of the present invention.
Claims (4)
1. the localization method of a TD-SCDMA mobile phone terminal, it is characterized in that building in advance in described method the pseudo-base station that is independent of grand net network, pseudo-base station is arranged to the Lin Qu base station of grand net network, according to pseudo-base station and grand net network phase mutual interference minimum principle, PLMN, frequency, LAI, the Cellparaid information of using the grand net network of scanning to obtain are configured, and with suitable power emission base station signal; Comprise the following steps:
(1) continuous paging operation is carried out to monitored TD-SCDMA target mobile phones terminal in pseudo-base station, make TD-SCDMA target mobile phones terminal automatically be drawn to residential quarter that pseudo-base station is built, and TD-SCDMA target mobile phones terminal is under the control of pseudo-base station, and constantly the transmitting power with maximum sends upward signal;
(2) after positioning equipment carries out time synchronized by the signal with pseudo-base station, carry out continuous measurement to wanting monitored TD-SCDMA target mobile phones terminal upward signal place time slot, the direction of estimation TD-SCDMA target mobile phones terminal and with the distance of positioning equipment.
2. method according to claim 1, the direction that it is characterized in that TD-SCDMA target mobile phones terminal in described method step (2) are by using directional antenna that the direction at TD-SCDMA target mobile phones terminal place is tested; When the signal strength signal intensity of accepting the target terminal time slot in the direction of certain was maximum, the direction of judgement directional antenna indication was the direction at TD-SCDMA target mobile phones terminal place.
3. method according to claim 2, it is characterized in that the distance of TD-SCDMA target mobile phones terminal and positioning equipment in described method step (2) is on the basis of the direction at definite TD-SCDMA target mobile phones terminal place, by running fix equipment on the direction at TD-SCDMA target mobile phones terminal place, the time slot power diversity judgement TD-SCDMA target mobile phones terminal of testing according to positioning equipment and the distance between positioning equipment.
4. method according to claim 3, is characterized in that in described method, positioning equipment is hand-held position indicator.
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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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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN111935719A (en) * | 2020-09-25 | 2020-11-13 | 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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- 2013-03-22 CN CN201310095092.1A patent/CN103139901B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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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 |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN111935719A (en) * | 2020-09-25 | 2020-11-13 | 南京嘉环科技股份有限公司 | Pseudo base station identification and positioning method and vehicle-mounted system |
| 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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| CN103139901B (en) | 2016-07-06 |
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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. |