CN108337730B - Method for realizing position positioning by using time-division synchronous rotating wave beam - Google Patents
Method for realizing position positioning by using time-division synchronous rotating wave beam Download PDFInfo
- Publication number
- CN108337730B CN108337730B CN201810103405.6A CN201810103405A CN108337730B CN 108337730 B CN108337730 B CN 108337730B CN 201810103405 A CN201810103405 A CN 201810103405A CN 108337730 B CN108337730 B CN 108337730B
- Authority
- CN
- China
- Prior art keywords
- signal
- degree
- division synchronous
- modulation
- synchronous rotating
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W64/00—Locating users or terminals or network equipment for network management purposes, e.g. mobility management
- H04W64/003—Locating users or terminals or network equipment for network management purposes, e.g. mobility management locating network equipment
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
- H04B7/0408—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas using two or more beams, i.e. beam diversity
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/18—Phase-modulated carrier systems, i.e. using phase-shift keying
- H04L27/20—Modulator circuits; Transmitter circuits
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/02—Services making use of location information
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/02—Services making use of location information
- H04W4/023—Services making use of location information using mutual or relative location information between multiple location based services [LBS] targets or of distance thresholds
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W64/00—Locating users or terminals or network equipment for network management purposes, e.g. mobility management
Abstract
The invention discloses a method for realizing position location by utilizing time division synchronous rotating wave beams, which relates to the field of radio signal location. The invention provides an indoor and outdoor integrated positioning method, which is a universal technical scheme for indoor and outdoor positioning.
Description
Technical Field
The invention relates to the field of radio signal positioning, in particular to a method for realizing position positioning by using time-division synchronous rotating beams.
Background
Ubiquitous location positioning remains a strong market need. In the outdoor environment, satellite navigation positioning technology is the mainstream of positioning technology. Various short-range wireless communication technologies compete vigorously indoors, and no mainstream positioning technology exists yet. The indoor and outdoor integrated positioning technology has no universal technical scheme due to lack of targeted design.
The mainstream of the terrestrial communication technology is the wireless cellular communication technology, which is commonly called mobile phone communication. The 5 th generation international wireless cellular communication technology comprehensively adopts an array antenna technology and is matched with a baseband algorithm to realize beam control, but the beam control is quasi-static, and the communication between a mobile phone and a base station is still continuous wave communication. By changing the baseband algorithm, the dynamic scanning of the wave beam according to the space direction can be realized, the dynamic scanning of space imaging is similar to that of a radar, and the communication belongs to pulse wave communication.
The double-antenna navigation satellite receiver can accurately measure the plane azimuth angle between the base line of the double antenna and the true north line (namely the starting point of all the longitude lines on a map or a globe, also called the geographical north pole), so that the base station reference direction measurement can be provided. The pointing reference can provide reference for the base station to perform signal modulation according to angles. The satellite time service signal provided at the same time can provide a time reference for the base station, and the time reference can provide a reference basis for the base station to synchronize according to time.
Accordingly, those skilled in the art have endeavored to develop a method for achieving position location using time-division synchronized rotating beams.
Disclosure of Invention
In view of the above-mentioned drawbacks of the prior art, the technical problem to be solved by the present invention is to provide a universal indoor and outdoor positioning.
In order to achieve the above object, the present invention provides a method for achieving position location by using a time division synchronous rotating beam, which uses a time division synchronous rotating beam radio frequency signal to broadcast simultaneously in a plurality of base stations, a terminal obtains angle information between the terminal and the base stations by receiving the rotating beam signal, obtains absolute position coordinates of the base stations by navigation text information carried by the rotating beam signal, and achieves location of the terminal position by using angle information and coordinate information of more than 2 base stations according to a general location method of an arrival signal angle.
Furthermore, the time division synchronous rotating beam radio frequency signal is a beam forming radio frequency signal, and a beam emitted by the time division synchronous rotating beam radio frequency signal performs circular scanning in a 360-degree plane direction according to a fixed speed meeting a communication function.
Furthermore, the starting time of the transmission period and the starting direction angle of the transmission period of the time division synchronous rotating beam radio frequency signal are kept synchronous among the base stations, the transmission radio frequency signal is modulated with a modulation code with angle information, and the modulation code of the transmission radio frequency signal carries navigation message information which keeps the same format among the base stations.
Further, the transmission of the time division synchronous rotating beam radio frequency signal can be described as modulation while scanning, and after scanning for one circle, the modulation code also completes modulation for one complete cycle, so that the beams transmitted at different angles have different modulation code chip information.
Further, the modulation code has different physical parameters as the angle is scanned. One modulation code that achieves this requirement is a pseudo-random sequence code. Assuming that the pseudo-random sequence code consists of 1023 chips, the received chip sequence for each degree of space would be 1023/360 chips wide during a 360 degree scan. And assuming that the beam pointing angle of the initial modulation transmission is 0 degree from the true north line, the 1 st segment signal of 1023/360 of the pseudo-random sequence is received at about 1 degree, the 2 nd segment signal of 1023/360 of the pseudo-random sequence is received at about 2 degrees, the nth segment signal of 1023/360 of the pseudo-random sequence is received at about N degrees, and so on.
Further, the modulation code has different physical parameters as the angle is scanned. One modulation code that achieves this requirement is a wideband linear modulation code. Assuming that the wideband linear modulation code is a 20M signal bandwidth, the received signal sequence in each degree space will be a 20M/360 frequency signal during a 360 degree scan. And assuming that the beam pointing angle of the initial modulation transmission is 0 degree of true north line angle, about 1 degree, the 1 st frequency signal of the broadband linear modulation signal with the frequency range of 20M/360 is received, about 2 degrees, the 2 nd frequency signal of the broadband linear modulation signal with the frequency range of 20M/360 is received, about N degrees, the nth frequency signal of the broadband linear modulation signal with the frequency range of 20M/360 is received, and so on.
Furthermore, the navigation message information carried by the modulation code at least comprises absolute position coordinate information of the corresponding transmitting base station, and is periodically and circularly broadcast on the modulation code. The terminal receives the received signal which occurs at a certain angular orientation and is periodically obtained in a pulse form, and the communication at a fixed communication rate in a pulse form can be realized by using the modulation technique of BPSK (Binary Phase Shift Keying), which is one of the conversion methods for converting an analog signal into a data value and using a combination of a plurality of waves with deviated phases to express an information key Shift method, and the information can be transmitted from the base station to the terminal.
Furthermore, the invention needs a plurality of base stations to broadcast the time division synchronous rotating wave beam simultaneously, thereby realizing the coverage of the positioning area. The distribution of base stations may utilize existing cellular communication base stations. The terminal receives signals of at least two base stations, obtains absolute coordinate information of the two base stations, obtains included angle information of a connecting line and a true north line formed by the corresponding terminal and the base stations respectively, and realizes the positioning of the terminal by a positioning method based on the angle of an arrival signal.
Furthermore, the terminal positioning adopts a passive and passive positioning mode, namely, only the positioning signal needs to be received, the position is directly calculated by the received positioning signal, and the terminal positioning does not need to be positioned by carrying out interactive communication with a base station. The terminal positioning only needs a positioning signal receiving circuit without configuring a positioning signal transmitting circuit.
The invention provides an indoor and outdoor integrated positioning method, which is a universal technical scheme for indoor and outdoor positioning.
The conception, the specific structure and the technical effects of the present invention will be further described with reference to the accompanying drawings to fully understand the objects, the features and the effects of the present invention.
Drawings
FIG. 1 is a schematic diagram of a rotating beam signal rotating scan of the present invention;
FIG. 2 is a schematic view of the positioning principle of the present invention at time I;
FIG. 3 is a schematic view of the positioning principle II of the present invention at time II;
FIG. 4 is a diagram illustrating a terminal receiving a signal pulse wave according to the present invention;
fig. 5 is a schematic diagram of the positioning principle of the present invention based on the angle of the arrival signal.
Detailed Description
The technical contents of the preferred embodiments of the present invention will be more clearly and easily understood by referring to the drawings attached to the specification. The present invention may be embodied in many different forms of embodiments and the scope of the invention is not limited to the embodiments set forth herein.
In the drawings, structurally identical elements are represented by like reference numerals, and structurally or functionally similar elements are represented by like reference numerals throughout the several views. The size and thickness of each component shown in the drawings are arbitrarily illustrated, and the present invention is not limited to the size and thickness of each component. The thickness of the components may be exaggerated where appropriate in the figures to improve clarity.
As shown in fig. 1, in this embodiment, a true north direction line 1 is an initial direction angle of a periodic signal, a beam 2 is an initial beam, and after a rotational scan at a certain speed, the beam respectively goes through a beam 3, a beam 4, and a beam 5 around the center of a base station, and finally goes back to the beam 2, and so on, the beam continuously and periodically sweeps through the whole plane. The time division synchronization means that the starting time of the transmission period of the rotating wave beams of different base stations keeps synchronous between more than two base stations, the starting direction angle of the transmission period keeps synchronous between a plurality of base stations, the transmission period radio frequency signal modulates a modulation code with angle information, the modulation code of the transmission radio frequency signal carries, and navigation message information with the same format is kept among the plurality of base stations. Namely, at the same time, the included angles between the beams of different base stations and the true north line are the same, and the directions are completely synchronous. The principle of the embodiment is that a plurality of base stations are utilized to broadcast the time division synchronous rotating wave beams simultaneously, and each base station is loaded with navigation messages with the same format but with respective contents.
As shown in fig. 2, in the positioning principle of the present embodiment, two base stations a and B broadcast respective time division synchronous rotating beams 3 at the time point, and a terminal C receives a signal beam from the base station a at the time point. Thereby obtaining the angle theta-A of the azimuth angle between the terminal C and the base station A by taking the true north line as the reference.
As shown in fig. 3, the positioning principle ii of the present embodiment is that both base stations a, B broadcast respective time-division synchronous rotating beams 3, and terminal C receives a signal beam from base station B at this time. Thereby obtaining the angle theta-B of the azimuth angle of the terminal C and the base station B by taking the true north line as the reference.
As shown in fig. 4, in this embodiment, the terminal receives the signal pulse wave, and in one period T, the terminal obtains the beam signals of the base station a and the base station B at a specific time, and in two periods T, the beam signals of the base station a and the base station B are obtained twice, and so on, and in the period time of the navigation message, the terminal obtains the navigation message of the base station a and the base station B, so as to obtain the absolute position coordinates a (X, Y) of the base station a and the absolute position coordinates B (X, Y) of the base station B.
As shown in fig. 5, the present embodiment employs a positioning principle based on the angle of an arrival signal. After obtaining a (X, Y), B (X, Y), θ -a, θ -B, the absolute position coordinates C (X, Y) of the terminal are calculated from the four parameters. The receiving and positioning principles of more than 2 base stations are equivalent and similar to the receiving and positioning principles of 2 base stations. The interference signal formed by the reflection of the signal can be distinguished from the reception of a direct beam by the extreme attenuation of the signal strength.
The foregoing detailed description of the preferred embodiments of the invention has been presented. It should be understood that numerous modifications and variations could be devised by those skilled in the art in light of the present teachings without departing from the inventive concepts. Therefore, the technical solutions available to those skilled in the art through logic analysis, reasoning and limited experiments based on the prior art according to the concept of the present invention should be within the scope of protection defined by the claims.
Claims (5)
1. A method for realizing position location by using time division synchronous rotating wave beams is characterized in that time division synchronous rotating wave beam radio-frequency signals are used for broadcasting in a plurality of base stations simultaneously, a terminal obtains angle information of the terminal and the plurality of base stations by receiving the time division synchronous rotating wave beam radio-frequency signals, obtains absolute position coordinates of the plurality of base stations by navigation message information carried by the time division synchronous rotating wave beam radio-frequency signals, and realizes the location of the terminal position according to a general location method of an arrival signal angle by using the angle information of the plurality of base stations and the absolute position coordinates of the plurality of base stations;
the time division synchronous rotating beam radio frequency signal is a beam forming radio frequency signal, and a beam emitted by the time division synchronous rotating beam radio frequency signal performs circular scanning in a 360-degree plane direction according to a fixed speed meeting a communication function;
the starting time of the transmission period and the starting direction angle of the transmission period of the time division synchronous rotating beam radio frequency signals are kept synchronous among the plurality of base stations;
the time division synchronous rotating beam radio frequency signal is modulated with a modulation code with angle information, and the modulation code for transmitting the radio frequency signal carries navigation message information which keeps the same format among the plurality of base stations;
the time division synchronous rotation beam radio frequency signal is transmitted by scanning and modulating, a complete period of modulation is completed by the modulation code after scanning, and beams transmitted at different angles have different modulation code chip information.
2. The method as claimed in claim 1, wherein the modulation code is a pseudo random sequence code consisting of 1023 chips, the received chip sequence in each degree space is 1023/360 chips in width during 360 degree scanning, and when the beam pointing angle of the initial modulation transmission is 0 degree from the north line, the 1 st segment signal of 1023/360 of the pseudo random sequence is received at 1 degree, the 2 nd segment signal of 1023/360 of the pseudo random sequence is received at 2 degree, and the N th segment signal of 1023/360 of the pseudo random sequence is received at N degree.
3. The method as claimed in claim 1, wherein the modulation code is a wideband linear modulation code, the signal bandwidth is 20M, the signal sequence received in each degree space during the 360 degree scanning process is a 20M/360 frequency signal, when the beam pointing angle of the initial modulation transmission is 0 degree in true north line angle, the 1 st segment frequency signal of the wideband linear modulation signal with the frequency range of 20M/360 is received at 1 degree, the 2 nd segment frequency signal of the wideband linear modulation signal with the frequency range of 20M/360 is received at 2 degree, and the nth segment frequency signal of the wideband linear modulation signal with the frequency range of 20M/360 is received at N degree.
4. The method as claimed in claim 2 or 3, wherein the navigation message information carried by the modulation code includes absolute position coordinate information of a corresponding transmitting base station, and is periodically and cyclically broadcast on the modulation code, the terminal receives the modulation signal, and periodically obtains a pulse-type received signal, and uses the BPSK base station modulation technique to implement pulse-type communication with a fixed communication rate, so as to implement information transmission from the base station to the terminal.
5. The method according to claim 1, wherein the terminal is located by passive positioning, and the position is directly calculated from the received time-division synchronous rotating beam rf signal without performing interactive communication with the base station, and the time-division synchronous rotating beam rf signal transmitting circuit is not configured.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810103405.6A CN108337730B (en) | 2018-02-01 | 2018-02-01 | Method for realizing position positioning by using time-division synchronous rotating wave beam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810103405.6A CN108337730B (en) | 2018-02-01 | 2018-02-01 | Method for realizing position positioning by using time-division synchronous rotating wave beam |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108337730A CN108337730A (en) | 2018-07-27 |
| CN108337730B true CN108337730B (en) | 2020-10-23 |
Family
ID=62928069
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810103405.6A Active CN108337730B (en) | 2018-02-01 | 2018-02-01 | Method for realizing position positioning by using time-division synchronous rotating wave beam |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108337730B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110933741B (en) * | 2018-09-14 | 2022-04-29 | 中兴通讯股份有限公司 | Positioning method and device of user equipment |
| CN110278527A (en) * | 2019-06-20 | 2019-09-24 | 维沃移动通信有限公司 | A kind of method of locating terminal and mobile terminal |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1250582A (en) * | 1997-12-11 | 2000-04-12 | 诺基亚电信公司 | Locating method and arrangement |
| CN1998161A (en) * | 2004-08-10 | 2007-07-11 | 三菱电机株式会社 | Base station, mobile machine and orientation detecting method for mobile communication system |
| CN102752713A (en) * | 2012-06-13 | 2012-10-24 | 北京邮电大学 | Wireless locating method based on long-term evolution signal system, and terminal |
| CN104090283A (en) * | 2014-06-30 | 2014-10-08 | 北京邮电大学 | Method and device for generating positioning signal |
| WO2015027118A1 (en) * | 2013-08-22 | 2015-02-26 | Qualcomm Incorporated | Utilizing a reference signal for indoor positioning |
| CN104581942A (en) * | 2015-01-13 | 2015-04-29 | 西北工业大学 | Network distributed type positioning method based on rotatable transmission beam signals |
-
2018
- 2018-02-01 CN CN201810103405.6A patent/CN108337730B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1250582A (en) * | 1997-12-11 | 2000-04-12 | 诺基亚电信公司 | Locating method and arrangement |
| CN1998161A (en) * | 2004-08-10 | 2007-07-11 | 三菱电机株式会社 | Base station, mobile machine and orientation detecting method for mobile communication system |
| CN102752713A (en) * | 2012-06-13 | 2012-10-24 | 北京邮电大学 | Wireless locating method based on long-term evolution signal system, and terminal |
| WO2015027118A1 (en) * | 2013-08-22 | 2015-02-26 | Qualcomm Incorporated | Utilizing a reference signal for indoor positioning |
| CN104090283A (en) * | 2014-06-30 | 2014-10-08 | 北京邮电大学 | Method and device for generating positioning signal |
| CN104581942A (en) * | 2015-01-13 | 2015-04-29 | 西北工业大学 | Network distributed type positioning method based on rotatable transmission beam signals |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108337730A (en) | 2018-07-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US11784699B2 (en) | Method and apparatus for focused data communications | |
| CN110462432B (en) | Digital beamforming for radar sensing using wireless communication chip sets | |
| CN110462431B (en) | Full duplex operation for radar sensing using wireless communication chip sets | |
| CN1115568C (en) | Position determination using multiple base station signal | |
| US2257320A (en) | Direction finding system | |
| KR100298112B1 (en) | Directional control antenna device | |
| US7065373B2 (en) | Method of steering smart antennas | |
| US9146318B2 (en) | Pseudo-satellite transmitter and method of transmitting GPS signals using pseudo-satellite transmitter | |
| CN108337730B (en) | Method for realizing position positioning by using time-division synchronous rotating wave beam | |
| JP2021534701A (en) | Synthetic aperture antenna array for 3D imaging | |
| US11811492B2 (en) | Multi spoke beamforming for low power wide area satellite and terrestrial networks | |
| CN104581942A (en) | Network distributed type positioning method based on rotatable transmission beam signals | |
| US11796669B2 (en) | Multi-stream MIMO/beamforming radar | |
| TWI771923B (en) | Method and apparatus for radar modulations | |
| EP1300689B1 (en) | A method and a system for determining the geographic coordinates within mobile communications networks and related terminal | |
| TWI681204B (en) | Communication apparatus and method for performing digital beamforming and related computer-readable storage media | |
| US3351940A (en) | Microwave transhorizon broadcast radio system | |
| Zheng et al. | LEO Satellite and RIS: Two Keys to Seamless Indoor and Outdoor Localization | |
| WO2001084175A1 (en) | Method and system for determining geographical co-ordinates in mobile communications networks | |
| US20230333193A1 (en) | Dns spatial discoveries with on-going traffic | |
| KR20160114978A (en) | Apparatus and System for beam forming of array antenna | |
| TW201904213A (en) | Full-duplex operation for radar sensing using a wireless communication chipset | |
| Bocquet et al. | A focusing technique based on a data spatial diversity at millimetre-wave frequency | |
| US20140105099A1 (en) | System for synchronizing a satellite pointing device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |