WO2010099900A1 - Method and system for locating in mobile radio communication networks by means of direction finding with directional antennas - Google Patents
Method and system for locating in mobile radio communication networks by means of direction finding with directional antennas Download PDFInfo
- Publication number
- WO2010099900A1 WO2010099900A1 PCT/EP2010/001204 EP2010001204W WO2010099900A1 WO 2010099900 A1 WO2010099900 A1 WO 2010099900A1 EP 2010001204 W EP2010001204 W EP 2010001204W WO 2010099900 A1 WO2010099900 A1 WO 2010099900A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- terminal device
- base station
- locating
- mobile radio
- radio communication
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S5/00—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations
- G01S5/02—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations using radio waves
- G01S5/04—Position of source determined by a plurality of spaced direction-finders
Definitions
- the invention concerns a method and a mobile radio communication system for locating a mobile radio terminal device within a cellular mobile communication network, wherein the mobile radio communication network has a plurality of cells, each having a base station, wherein the terminal device is logged in one or more base stations.
- the location of mobile communication terminal devices in mobile radio communication networks is currently performed cell-based by using the position of the respective base station into which the terminal device is booked. It is disadvantageous thereby, that as a result of this, only the region of the cell is known, into the base station of which the mobile communication terminal device is booked, not however, the precise location of the mobile radio terminal device within this quite large region.
- propagation time measurements of electromagnetic signals from several base stations can also be analyzed. This more precise determination of position is then performed by triangulation.
- the mobile radio communication network has a plurality of cell, each having a base station, wherein the terminal device is booked into one or several base stations, is, that the locating by means of at least one base station is performed by a direction finding of the terminal device, wherein the direction finding is performed by means of a directional antenna of the base station by directing the main lobe of the directional antenna to the position of the terminal device.
- This method is known as beam-forming.
- the antenna systems pertaining to it are often described as smart antennas.
- MIMO antenna can be used as directional antenna.
- MIMO Multiple Input Multiple Output
- direction findings of the terminal device are performed by two or more base stations, and the intersection point of these direction findings is determined.
- the exact position of the terminal device within the cellular mobile communication network can be determined.
- the propagation time of the radio signal between each of the base stations and the terminal device is measured, from which the respective distance between the base stations and the terminal device can be determined / is determined.
- a direction finding in connection with a measurement of the propagation time, the position of the terminal device can be located precisely.
- the direction of the locating is calibrated with respect to a standard direction, especially to a cardinal point.
- the determination of the direction finding angle is with respect to north.
- the mobile radio communication system for locating a mobile communication terminal device within a cellular mobile communication system, whereby the system has a plurality of cells, each having a base station, whereby the terminal device is booked into one or more base stations, is, that at least some of the base stations have at least one directional antenna and are equipped to perform a direction finding by directing the major lobe of the directional antenna in the direction of the terminal device.
- mobile radio communication system can comprise the mobile communication network itself or a part of the mobile communication network, i.e. for example, some cells of the network, whereby this part of the network is equipped in accordance with the invention.
- the term mobile radio communication system can, however, also include additional equipment that is required for the operation of a mobile radio communication network.
- a so-called MIMO antenna can thereby be used.
- the system is equipped for measuring the propagation time of the radio signal between a base station and terminal device, from which the respective distance between the base station and terminal device can be determined/ is determined.
- the system is further equipped to calibrate the direction of the locating with respect to a standard direction, especially with respect to a cardinal point.
- the calibration or determination of the direction finding angle is performed with respect to the direction of north, N.
- the positions of the base stations are known. Respectively, it is easily possible to determine the exact positions of the base stations most precisely. Because these data are known, and on the basis of the locating of the terminal device within the cellular mobile communication network by means of direction finding with directional antennas, especially MIMO antennas, it is possible, on the one hand to determine the relative position of terminal device to a base, as well as the absolute position of the located terminal device, based on the known position of the base station.
- locating data is transmitted to an anonymous or non- anonymous processing unit for further processing. This enables the possibility, for example, to search for missing persons by means of locating the mobile communication terminal devices of these persons.
- the method in accordance with the invention and the system in accordance with the invention make it possible to perform a direction measurement in various mobile communication standards, in order to exactly locate terminal devices.
- a direction measurement of mobile communication terminal devices is made possible then, when directional antennas, especially MIMO antennas, are used in the mobile radio communication network, in which the radio lobe can be directed to the respective mobile communication subscriber, i.e. expressed more precisely, to the respective mobile communication terminal device, by means of phase shifting of the individual antennas.
- This method can be employed when a TDD mode (Time Division Duplex) is used, as the communication is then executed in each time interval with only one mobile communication terminal device in one mobile communication cell.
- TDD mode Time Division Duplex
- Possible mobile communication standards are in particular GSM (including GPRS, EDGE), UMTS in TDD mode (including HSxPA), WiMAZ, Long Term Evolution (LTE), High Speed OFDM Packet Access (HSOPA) or other mobile communication standards that permit the use of MIMO antennas or support such.
- GSM including GPRS, EDGE
- UMTS in TDD mode including HSxPA
- WiMAZ Long Term Evolution
- LTE Long Term Evolution
- HOPA High Speed OFDM Packet Access
- Figure 1 a first embodiment of an application of locating by means of a base station
- Figure 2 a second embodiment of an application of positioning by using two base stations.
- only one base station 11 is used for locating.
- the mobile communication terminal device 12 is booked into this base station 11 that covers a cell area.
- the base station 11 is provided with a directional antenna.
- a direction finding of terminal device 12 is performed by directing the main radio lobe, i.e. the main lobe of the directional antenna of the base station 11 in the direction of the mobile communication terminal device 12, which is to be located. From this direction finding, the angle ⁇ relative to the direction of north, N, can be found.
- a propagation time measurement of the signal between the base station 11 and mobile communication terminal device 12 is performed. Using the propagation time measurement, a distance d between the base station 11 and the terminal device 12 can be determined.
- the locating of terminal device 12 can be performed precisely.
- propagation time measurement i.e. the determination of the distance d
- direction finding i.e. determining the angle ⁇ with respect to the direction of north, N
- the exact position of the located terminal device 12 within the mobile communication network is now known.
- FIG 2 two possible cases of application of the invention are shown, which will be explained in the following.
- the mobile communication terminal device 23 is simultaneously booked into two base stations 21 and 22.
- two direction findings are performed starting with base stations 21 and 22.
- the first direction finding is performed by base station 21 to location 23 of the mobile communication terminal device, and the angle ⁇ is determined as a deviation to the direction of north, N, with respect to location 23 of the mobile communication terminal device.
- the angle ⁇ is determined as the deviation to the direction of north, N, with respect to location 23 of the mobile communication terminal device.
Abstract
The invention concerns a method and a system for locating a mobile radio communication terminal device within a cellular mobile radio communication network, wherein the mobile communication network has a plurality of cells, each having a base station, wherein the terminal (12, 23) is booked into one or more base stations (11, 21, 22), wherein at least some of the base stations (11, 21, 22) have at least one directional antenna and the locating by at least one base station (11, 21, 22) is performed by means of a direction finding of the terminal device (12, 23), wherein the direction finding is performed by means of a directional antenna of the base station (11, 21, 22) by directing the main lobe of the directional antenna to the location of the terminal (12, 23) device.
Description
Method and system for locating in mobile radio communication networks by means of direction finding with directional antennas
The invention concerns a method and a mobile radio communication system for locating a mobile radio terminal device within a cellular mobile communication network, wherein the mobile radio communication network has a plurality of cells, each having a base station, wherein the terminal device is logged in one or more base stations.
The location of mobile communication terminal devices in mobile radio communication networks is currently performed cell-based by using the position of the respective base station into which the terminal device is booked. It is disadvantageous thereby, that as a result of this, only the region of the cell is known, into the base station of which the mobile communication terminal device is booked, not however, the precise location of the mobile radio terminal device within this quite large region.
In order to improve the precision of locating, propagation time measurements of electromagnetic signals from several base stations can also be analyzed. This more precise determination of position is then performed by triangulation.
Thereby, it is disadvantageous that the precision of the known methods for determining location is quite limited and the known triangulation measurement is very laborious, as the terminal device must be booked into several base stations. This method fails, when the terminal device is booked only into a single base station.
It is an object of the invention to further develop a method and a mobile radio communication system for locating a mobile communication terminal device within a cellular mobile communication network in such a way that locating is made possible even if the mobile communication terminal device is booked only in a single base station. Further, it is an object of the invention to improve the precision of locating a mobile communication terminal device without requiring an extensive method such as, for example, a triangulation.
This object is achieved in accordance with the invention by a method indicated in claim 1 and a mobile radio communication system as described claim 5. Advantageous further developments of the method in accordance with the invention and the system in accordance with the invention are identified in the respective dependent claims.
Especially advantageous in the method for locating a mobile communication terminal device within a cellular mobile communication network, wherein the mobile radio communication network has a plurality of cell, each having a base station, wherein the terminal device is booked into one or several base stations, is, that the locating by means of at least one base station is performed by a direction finding of the terminal device, wherein the direction finding is performed by means of a directional antenna of the base station by directing the main lobe of the directional antenna to the position of the terminal device.
This method is known as beam-forming. The antenna systems pertaining to it are often described as smart antennas.
Especially a so-called MIMO antenna can be used as directional antenna. In telecommunications engineering, MIMO (Multiple Input Multiple Output) stand for the use of multiple transmitting and receiving antennas for wireless communication.
In an advantageous further development, direction findings of the terminal device are performed by two or more base stations, and the intersection point of these direction findings is determined.
As the result of finding the point of intersection of two direction findings, based on two base stations, the exact position of the terminal device within the cellular mobile communication network can be determined.
Preferably, in addition to one or more direction finding/s, the propagation time of the radio signal between each of the base stations and the terminal device is measured, from which the respective distance between the base stations and the terminal device can be determined / is determined.
A direction finding in connection with a measurement of the propagation time, the position of the terminal device can be located precisely.
Preferably, the direction of the locating is calibrated with respect to a standard direction, especially to a cardinal point. Preferably, the determination of the direction finding angle is with respect to north.
Especially advantageous in the mobile radio communication system for locating a mobile communication terminal device within a cellular mobile communication system, whereby the system has a plurality of cells, each having a base station, whereby the terminal device is booked into one or more base stations, is, that at least some of the base stations have at least one directional antenna and are equipped to perform a direction finding by directing the major lobe of the directional antenna in the direction of the terminal device.
The term mobile radio communication system can comprise the mobile communication network itself or a part of the mobile communication network, i.e. for example, some cells of the network, whereby this part of the network is equipped in accordance with the invention. The term mobile radio communication system can,
however, also include additional equipment that is required for the operation of a mobile radio communication network. In accordance with the invention, it only matters that at least some of the base stations of the cellular mobile communication network or mobile communication system have at least one directional antenna that permits performing a direction finding by means of directing of the major lobe of the directional antenna in the direction of the terminal device.
Especially, a so-called MIMO antenna can thereby be used.
Preferably, the system is equipped for measuring the propagation time of the radio signal between a base station and terminal device, from which the respective distance between the base station and terminal device can be determined/ is determined.
Preferably, the system is further equipped to calibrate the direction of the locating with respect to a standard direction, especially with respect to a cardinal point. Preferably, the calibration or determination of the direction finding angle is performed with respect to the direction of north, N.
In general, the positions of the base stations are known. Respectively, it is easily possible to determine the exact positions of the base stations most precisely. Because these data are known, and on the basis of the locating of the terminal device within the cellular mobile communication network by means of direction finding with directional antennas, especially MIMO antennas, it is possible, on the one hand to determine the relative position of terminal device to a base, as well as the absolute position of the located terminal device, based on the known position of the base station.
Further possibilities of use are navigation, location based services, tracking applications, as well as other telematic applications that require a positioning functionality.
The possibility exists that the locating data is transmitted to an anonymous or non- anonymous processing unit for further processing. This enables the possibility, for example, to search for missing persons by means of locating the mobile communication terminal devices of these persons.
The method in accordance with the invention and the system in accordance with the invention make it possible to perform a direction measurement in various mobile communication standards, in order to exactly locate terminal devices. A direction measurement of mobile communication terminal devices is made possible then, when directional antennas, especially MIMO antennas, are used in the mobile radio communication network, in which the radio lobe can be directed to the respective mobile communication subscriber, i.e. expressed more precisely, to the respective mobile communication terminal device, by means of phase shifting of the individual antennas.
This method can be employed when a TDD mode (Time Division Duplex) is used, as the communication is then executed in each time interval with only one mobile communication terminal device in one mobile communication cell.
Possible mobile communication standards are in particular GSM (including GPRS, EDGE), UMTS in TDD mode (including HSxPA), WiMAZ, Long Term Evolution (LTE), High Speed OFDM Packet Access (HSOPA) or other mobile communication standards that permit the use of MIMO antennas or support such.
Now, an angle measurement can be performed in each base station into which the mobile communication terminal device that is to be located is logged. It is advantageous if the angles are processed as values with respect to a reference size, e.g. with respect to the deviation of the measured angles from north direction. As a result of the analysis of the direction finding, various possibilities for locating now result, alone or in combination, which are explained in the following considering the figures.
The figures show:
Figure 1 a first embodiment of an application of locating by means of a base station;
Figure 2 a second embodiment of an application of positioning by using two base stations.
In the first embodiment shown in Figure 1 , only one base station 11 is used for locating. The mobile communication terminal device 12 is booked into this base station 11 that covers a cell area.
The base station 11 is provided with a directional antenna. A direction finding of terminal device 12 is performed by directing the main radio lobe, i.e. the main lobe of the directional antenna of the base station 11 in the direction of the mobile communication terminal device 12, which is to be located. From this direction finding, the angle α relative to the direction of north, N, can be found.
Further, a propagation time measurement of the signal between the base station 11 and mobile communication terminal device 12 is performed. Using the propagation time measurement, a distance d between the base station 11 and the terminal device 12 can be determined.
By combining propagation time measurement, i.e. the determination of the distance d, and the direction finding, i.e. determining the angle α with respect to the direction of north, N, the locating of terminal device 12 can be performed precisely. By determining the distance d between base station 11 and mobile communication terminal device 12, as well as the angle α as deviation from the direction of north, N, the exact position of the located terminal device 12 within the mobile communication network is now known.
In Figure 2, two possible cases of application of the invention are shown, which will be explained in the following. The mobile communication terminal device 23 is simultaneously booked into two base stations 21 and 22.
In a first application case, two direction findings are performed starting with base stations 21 and 22. The first direction finding is performed by base station 21 to location 23 of the mobile communication terminal device, and the angle α is determined as a deviation to the direction of north, N, with respect to location 23 of the mobile communication terminal device. In a second direction finding starting with the second base station 22, the angle β is determined as the deviation to the direction of north, N, with respect to location 23 of the mobile communication terminal device.
From both direction findings (angle α of the first base station 21 and angle β of the second base station 22, both with respect to north, N) the point of intersection can be calculated and thus at the point of intersection of the two direction finding directions, the position of the terminal device 23 can be found.
In a further case of application with two or more base stations, in addition to the two direction findings (angle α of the first base station 21 and angle β of second station 22, both with respect to north, N), determination of the point of intersection and finding the terminal device at this point of intersection, propagation time measurements of the signals between the base stations 21 and 22, as well as the terminal device 23 are performed, whereby a review and a more precise determination of the position of terminal device 23 is made possible, as from the propagation time measurements the distance between first base station 21 and terminal device 23, as well as the distance between second base station 22 and terminal device 23 can be determined.
Hereby, an additional verification of the location of terminal device 23, which was determined by finding the point of intersection of the two direction findings, is possible.
Claims
1. Method for locating a mobile radio terminal device within a cellular mobile radio communication network, wherein the mobile radio communication network has a plurality of cells, each having a base station (11 , 21 , 22), wherein the terminal device (12, 23) is booked into one or more base stations (11 , 21 , 22), characterized in that the locating by at least one base station (11 , 21 , 22) is performed by a direction finding of the terminal device (12, 23), wherein the direction finding is performed by means of a directional antenna of the base station (11 , 21 , 22) by directing the main lobe of the directional antenna to the position of the terminal device (12, 23).
2. Method according to claim 1 , characterized in that direction findings of the terminal device (12, 23) are performed by two or more base stations (11 , 21 , 22), and the intersection point of these direction findings is determined.
3. Method according to claim 1 or 2, characterized in that in addition to one or more direction finding/s the propagation time of the radio signal between each of the base stations and the terminal device (12, 23) is measured, and that the distance (d) between the respective base station (11 , 21 , 22) and terminal device (12, 23) can be determined/is determined from the measurements.
4. Method according to one of the preceding claims, characterized in that the direction of the locating is calibrated with respect to a standard direction, especially with respect to a cardinal point, particularly that the angle (α, β) is determined with respect to north direction(N).
5. Mobile radio communication system for locating a mobile radio terminal device within a cellular mobile radio communication system, especially for using and executing the method according to one of the preceding claims, whereby the system has a plurality of cells, each having a base station (11 , 21 , 22), whereby the terminal device (12: 23) is booked into one or more base stations (11 , 21 , 22), characterized in that at least some of the base stations (11 , 21 , 22) have at least one directional antenna and are equipped to perform a direction finding by directing the main lobe of the directional antenna in the direction of the terminal device (12, 23).
6. Mobile radio communication system according to Claim 5, characterized in that the system is equipped for measuring the propagation time of the radio signal between a base stations (11 , 21 , 22) and the terminal device (12, 23), and that the distance (d) between a base station (11 , 21 , 22) and terminal device (12, 23) can be determined/is determined from the measurement.
7. Mobile radio communication system according to claim 5 or 6, characterized in that the system is equipped to calibrate the direction of the locating with respect to a standard direction, especially with respect to a cardinal point, in particular, that the system is equipped to determine the angle (α, β) with respect to north direction (N).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102009017427.3 | 2009-03-03 | ||
| DE200910017427 DE102009017427A1 (en) | 2009-03-03 | 2009-03-03 | Method and system for locating in mobile networks by directional bearing with directional antennas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2010099900A1 true WO2010099900A1 (en) | 2010-09-10 |
Family
ID=42315556
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/EP2010/001204 WO2010099900A1 (en) | 2009-03-03 | 2010-02-26 | Method and system for locating in mobile radio communication networks by means of direction finding with directional antennas |
Country Status (2)
| Country | Link |
|---|---|
| DE (1) | DE102009017427A1 (en) |
| WO (1) | WO2010099900A1 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2510708C1 (en) * | 2012-10-11 | 2014-04-10 | Открытое акционерное общество "Всероссийский научно-исследовательский институт "Градиент" | Radio-frequency radiation source direction-finding method |
| JP2015072173A (en) * | 2013-10-02 | 2015-04-16 | 三星電子株式会社Ｓａｍｓｕｎｇ Ｅｌｅｃｔｒｏｎｉｃｓ Ｃｏ．，Ｌｔｄ． | Position estimation device, and position estimation method |
| CN108896960A (en) * | 2018-06-26 | 2018-11-27 | 四川中电昆辰科技有限公司 | Positioning system and route guidance system and its method |
| RU2722715C1 (en) * | 2019-08-29 | 2020-06-03 | федеральное государственное казенное военное образовательное учреждение высшего образования "Военная академия связи имени Маршала Советского Союза С.М. Буденного" Министерства обороны Российской Федерации | Method of amplitude direction finding of interfering radio waves and device realizing |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5945948A (en) * | 1996-09-03 | 1999-08-31 | Motorola, Inc. | Method and apparatus for location finding in a communication system |
| WO2003036324A1 (en) * | 2001-10-23 | 2003-05-01 | Abb Ab | Industrial robot system |
| US20030197645A1 (en) * | 2002-04-18 | 2003-10-23 | Fujitsu Limited | Positioning of mobile wireless terminal |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4321418A1 (en) * | 1993-06-26 | 1995-01-05 | Deutsche Aerospace | Method for locating mobile stations in a cellular cellular network and cellular network for performing the method |
| DE19528616A1 (en) * | 1995-08-04 | 1997-02-06 | Daimler Benz Aerospace Ag | Radio location of mobile station - comparing received subscriber number with number of mobile to be located, and if coincidence occurs, activating direction finder to determine mobile azimuth, TA value and hence distance and location |
-
2009
- 2009-03-03 DE DE200910017427 patent/DE102009017427A1/en not_active Withdrawn
-
2010
- 2010-02-26 WO PCT/EP2010/001204 patent/WO2010099900A1/en active Application Filing
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5945948A (en) * | 1996-09-03 | 1999-08-31 | Motorola, Inc. | Method and apparatus for location finding in a communication system |
| WO2003036324A1 (en) * | 2001-10-23 | 2003-05-01 | Abb Ab | Industrial robot system |
| US20030197645A1 (en) * | 2002-04-18 | 2003-10-23 | Fujitsu Limited | Positioning of mobile wireless terminal |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2510708C1 (en) * | 2012-10-11 | 2014-04-10 | Открытое акционерное общество "Всероссийский научно-исследовательский институт "Градиент" | Radio-frequency radiation source direction-finding method |
| JP2015072173A (en) * | 2013-10-02 | 2015-04-16 | 三星電子株式会社Ｓａｍｓｕｎｇ Ｅｌｅｃｔｒｏｎｉｃｓ Ｃｏ．，Ｌｔｄ． | Position estimation device, and position estimation method |
| CN108896960A (en) * | 2018-06-26 | 2018-11-27 | 四川中电昆辰科技有限公司 | Positioning system and route guidance system and its method |
| CN108896960B (en) * | 2018-06-26 | 2022-08-23 | 四川中电昆辰科技有限公司 | Positioning system and path guiding system and method thereof |
| RU2722715C1 (en) * | 2019-08-29 | 2020-06-03 | федеральное государственное казенное военное образовательное учреждение высшего образования "Военная академия связи имени Маршала Советского Союза С.М. Буденного" Министерства обороны Российской Федерации | Method of amplitude direction finding of interfering radio waves and device realizing |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102009017427A1 (en) | 2010-09-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109155984B (en) | Method for determining channel time delay, positioning method and related equipment | |
| EP2975892B1 (en) | Mobile terminal, and locating method and device | |
| US8369872B2 (en) | Method and device for determination of the position of a terminal in a mobile communication network | |
| EP2874449A1 (en) | Positioning information determination method and device | |
| EP2961231A1 (en) | Angle determining system and method | |
| CN100486355C (en) | Method and apparatus for realizing mobile station positioning in radio communication system | |
| US9848428B2 (en) | Positioning of wireless devices | |
| CN111148020B (en) | Positioning system, method, device and computer readable storage medium | |
| US20110244883A1 (en) | Method and mobile radio terminal device to determine position within mobile radio networks by means of direction finding | |
| CN112369086A (en) | Method, apparatus, and computer-readable medium for beam information based positioning | |
| US10531465B2 (en) | Communication device, access node and methods thereof | |
| US20090168674A1 (en) | Determining position of a node based on aged position data | |
| WO2010099900A1 (en) | Method and system for locating in mobile radio communication networks by means of direction finding with directional antennas | |
| CN105657820A (en) | Method and device for locating indoor target user equipment | |
| KR101829411B1 (en) | Apparatus for wireless positioning and method for the same | |
| US20130288705A1 (en) | Wireless location determination apparatus and method using weighted value in wireless communication network | |
| CN114980308A (en) | Positioning method, positioning device and computer storage medium | |
| CN115529661A (en) | Positioning processing method, positioning reference signal sending method, device and equipment | |
| Raja et al. | We know where you are [cellular location tracking] | |
| CN105793724A (en) | Method and apparatus to improve position accuracy for wi-fi technology | |
| KR20180117346A (en) | System and Method for Positioning Using Beam Scan of 5G Base Station | |
| US20220099789A1 (en) | Positioning system deployment | |
| EP4280719A1 (en) | Positioning method and apparatus, device, and storage medium | |
| US20220038920A1 (en) | Sample measurement toa correction | |
| CN110662160B (en) | Beamforming method and apparatus, and computer-readable storage medium |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 10712314 Country of ref document: EP Kind code of ref document: A1 |
|
| 122 | Ep: pct application non-entry in european phase |
Ref document number: 10712314 Country of ref document: EP Kind code of ref document: A1 |