CN107949051B - Terminal positioning method and device and positioning equipment - Google Patents
Terminal positioning method and device and positioning equipment Download PDFInfo
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- CN107949051B CN107949051B CN201610892238.9A CN201610892238A CN107949051B CN 107949051 B CN107949051 B CN 107949051B CN 201610892238 A CN201610892238 A CN 201610892238A CN 107949051 B CN107949051 B CN 107949051B
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Abstract
The invention discloses a terminal positioning method, a device and a positioning device, wherein the method comprises the following steps: when User Equipment (UE) is positioned, first positioning information and first position information provided by a communication module in the UE and second positioning information provided by a base station accessed by the UE are respectively obtained, the second position information of the UE is determined according to the second positioning information, if the first positioning information meets a preset positioning condition, the first position information is determined to be the position information of the UE, otherwise, the second position information is determined to be the position information of the UE, positioning of the terminal is realized under the assistance of the communication module, and the accuracy of indoor positioning of the terminal is improved on the premise that the deployment density of the base station is not increased.
Description
Technical Field
The present invention relates to the field of wireless positioning, and in particular, to a terminal positioning method, device and positioning apparatus.
Background
Currently, the LTE (Long Term Evolution) based positioning system includes a CID (Cell ID), an E-CID (Enhanced Cell ID), a fingerprint or three-point positioning technique based on a downlink RSRP (Reference Signal Receiving Power) Signal, a fingerprint or three-point positioning technique based on an Uplink SRS (Sounding Reference Signal), a positioning technique based on UTDOA (Uplink-Time Difference of Arrival) and OTDOA (observed Difference of Arrival), a positioning technique based on an ID having the lowest positioning accuracy (>50m), two positioning techniques having better positioning accuracy (10m to 30m), and a positioning technique based on a Difference of Arrival (10 m) having the best positioning accuracy (Cell accuracy about 10m), overall positioning accuracy is proportional to base station or antenna deployment spacing and density.
Based on bluetooth positioning, the position information of the device is mainly brought in through a Beacon broadcast frame at present, and when a terminal receives the Beacon with the position information, the position of the Beacon is identified as the position of a User Equipment (UE), or comprehensive positioning is performed by utilizing a plurality of received Beacon through a three-point or fingerprint positioning algorithm. The Beacon positioning range is divided into three stages: the Bluetooth positioning device comprises three levels of Immedia, Near and Far, different levels can have different reference signal settings, and as the transmitting power of the Bluetooth device is smaller than that of other mainstream indoor positioning technologies, the Bluetooth positioning accuracy is the highest (<10m) in the mainstream indoor positioning technologies in general, but the deployment density is also the highest, and the positioning accuracy is also in direct proportion to the distance and the density of the Beacon device deployment.
At present, based on LTE technology location under current inter-station distance deployment density, the precision is difficult to accomplish to accord with indoor positioning requirement (<6m), can promote positioning accuracy through increasing indoor LTE website, but can increase the deployment basic station cost on the one hand like this, on the other hand can introduce the reconfiguration transmission to the newly-increased equipment of indoor scene that has built LTE cover, walk the line scheduling problem, consequently adopt the scheme of low-cost low complexity to promote LTE indoor positioning accuracy and become the key problem of indoor location.
In addition, when providing high accuracy location through high density deployment bluetooth Beacon equipment indoors, also can bring the problem of deployment and management, bluetooth switch is opened to bluetooth location service needs terminal moreover to need can be fixed a position under the terminal is not in power saving mode, therefore the sample that uses bluetooth location must be limited, so adopt the bluetooth network alone to provide indoor location also has certain limitation.
Disclosure of Invention
The embodiment of the invention provides a terminal positioning method, a terminal positioning device and positioning equipment, which are used for improving the indoor positioning precision of a terminal on the premise of not increasing the deployment density of a base station.
The embodiment of the invention provides a terminal positioning method, which comprises the following steps:
when User Equipment (UE) is positioned, first positioning information and first position information provided by a communication module in the UE and second positioning information provided by a base station accessed by the UE are respectively obtained;
determining second position information of the UE according to the second positioning information;
if the first positioning information meets a preset positioning condition, determining that the first positioning information is the position information of the UE; otherwise, determining the second location information as the location information of the UE.
An embodiment of the present invention provides a terminal positioning apparatus, including:
an obtaining unit, configured to obtain first positioning information and first position information provided by a communication module in User Equipment (UE) and second positioning information provided by a base station to which the UE is accessed, respectively, when the UE is located;
a first determining unit, configured to determine second location information of the UE according to the second positioning information;
a second determining unit, configured to determine that the first location information is location information of the UE if the first location information meets a preset location condition; otherwise, determining the second location information as the location information of the UE.
The embodiment of the invention provides a positioning device, which comprises the terminal positioning device.
The beneficial effects of the invention include:
according to the terminal positioning method, the terminal positioning device and the positioning equipment provided by the embodiment of the invention, when the UE is positioned, the communication module and the base station are started to position, if the first positioning information obtained based on the communication module meets the preset positioning condition, the first positioning information is determined to be the position information of the UE, otherwise, the second positioning information obtained based on the base station positioning is determined to be the position information of the UE, so that the terminal is positioned with the assistance of the communication module, the indoor positioning precision is improved, and the deployment density of the base station is reduced because indoor equipment does not need to be newly added.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by the practice of the invention. The objectives and other advantages of the application may be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
fig. 1a is a schematic structural diagram of a terminal positioning system according to an embodiment of the present invention;
fig. 1b is a schematic view of an implementation flow of a terminal positioning method according to an embodiment of the present invention;
fig. 1c is a schematic diagram of an implementation flow of determining whether the first positioning information meets a preset positioning condition in the terminal positioning method according to the embodiment of the present invention;
fig. 1d is a schematic diagram of an implementation flow after determining that the first location information is location information of the UE in the terminal positioning method according to the embodiment of the present invention;
fig. 1e is a schematic diagram of an implementation flow of determining location information of a UE based on base station positioning in a terminal positioning method according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a terminal positioning device according to an embodiment of the present invention;
fig. 3a is a schematic structural diagram of a deployment scenario based on a terminal positioning method according to an embodiment of the present invention;
fig. 3b is a schematic structural diagram of another deployment scheme based on the terminal positioning method according to the embodiment of the present invention.
Detailed Description
In order to improve the indoor positioning accuracy of the terminal and reduce the network reconstruction cost and the equipment maintenance cost, the embodiment of the invention provides a terminal positioning method, a device and positioning equipment.
The base station involved in the embodiments of the present invention may be a base station deployed in a cellular network. For convenience of description, an LTE base station is taken as an example in the embodiment of the present invention for explanation.
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation. And the embodiments and features of the embodiments in the present application may be combined with each other without conflict.
In a conventional application based on a C/S (Client/Server) architecture, a Client application program and a Server device application program are generally cooperated with each other to provide a service for a user. The client application program is a client application program which is installed on the terminal, can perform information interaction with the server equipment on the network side, and provides service for the user through the mutual cooperation operation with the server equipment side application program.
Based on this, the terminal positioning method provided by the embodiment of the present invention can provide the positioning service for the user by the positioning client application installed in the terminal and the positioning device deployed on the network side. The location of the positioning device in the network is as shown in fig. 1a, when the UE is located, the UE obtains first location information based on a communication module and first location information based on the communication module through the communication module (e.g., a bluetooth module or a WLAN module) installed in the UE and an indoor deployed communication device (a bluetooth Beacon or an AP access point), and provides the first location information and the first location information to the positioning device through a base station or a distributed Radio Unit (RRU), the base station obtains second location information of the UE, provides the second location information to the positioning device, and the positioning device determines the second location information based on the base station of the UE according to the second location information.
In specific implementation, the UE may be triggered to be located by any one of the following manners:
in the first mode, a third-party APP installed in the UE, such as a taxi-taking APP, requests location information of the UE from a positioning APP through an API (Application Programming Interface) Interface between the taxi-taking APP and the positioning APP, the positioning APP sends a positioning request to a positioning device on a network side, and the positioning device triggers and starts to position the UE after receiving the positioning request.
And in the second mode, a third-party application APP installed in the UE requests the third service platform at the network side for the position information of the UE, the third service platform receives the request and then sends a positioning request to the positioning equipment through a core network (EPC), and the positioning equipment triggers and starts to position the UE after receiving the positioning request.
And thirdly, positioning the UE by the positioning equipment according to a preset period, and providing a positioning result for a positioning APP installed in the UE.
And in the fourth mode, when the UE starts the positioning APP, the UE is triggered to be started to be positioned.
And in the fifth mode, the UE starts a third-party application APP, the third-party application APP sends a positioning request to a third service platform on the network side, the third service platform sends the positioning request to the positioning equipment through an core network (EPC) after receiving the request, and the positioning equipment triggers and starts to position the UE after receiving the positioning request.
The following describes a terminal positioning method, device and positioning apparatus provided by the present invention in detail with specific embodiments in conjunction with the accompanying drawings.
Example one
As shown in fig. 1b, an implementation flow diagram of the terminal positioning method provided in the embodiment of the present invention may include the following steps:
s11, when the UE is located, first location information and first location information provided by a communication module in the UE and second location information provided by a base station accessed by the UE are respectively obtained.
The first positioning information provided by a communication module of the UE (User Equipment) includes a Received Signal strength indication (Received Signal strength indication) of a bluetooth Beacon RSSI (Received Signal strength indication) sent by the UE and measured by the bluetooth module; the second positioning information provided by the base station accessed by the UE includes a downlink Signal RSSI of the base station measured by the UE, or an uplink SRS (Sounding Reference Signal) reported by the UE.
In specific implementation, the communication module in the UE may include, but is not limited to, a bluetooth module, a WLAN (Wireless local area Network) module, and the like, and for convenience of description, the bluetooth module is taken as an example in the embodiment of the present invention for description.
Specifically, when User Equipment (UE) is located, a positioning APP calls a Bluetooth switch through an API (application program interface), the user starts the Bluetooth switch after receiving a Bluetooth switch start prompt, and after the Bluetooth switch is started, a Bluetooth module in the UE receives first position information and first positioning information sent by an indoor deployed Bluetooth beacon.
The first position information is position information of a Bluetooth Beacon, the Bluetooth Beacon is placed in a Beacon Beacon broadcast frame, after a user starts a Bluetooth switch, the UE can receive the Beacon Beacon with the position information, the UE identifies the position of the Beacon as the first position information of the UE, meanwhile, a Bluetooth module in the UE measures received Bluetooth Beacon RSSI to obtain first positioning information, the first position information and the first positioning information are sent to a base station, and the base station sends the first positioning information to positioning equipment.
In specific implementation, the positioning device may obtain second positioning information for the UE from the LTE base station, where the second positioning information may be obtained through a UE side triggering or a network side triggering manner, which is described below.
A UE side trigger mode,
After the positioning APP is started, the positioning APP sends a positioning request to the positioning device through the base station, or after the third-party APP is started, the third-party APP sends a positioning request to the third-party service platform, the third-party service platform sends a positioning request to the positioning device, and the like, after the positioning device receives the positioning request, the positioning device notifies the base station to send measurement configuration information to the UE, and a measurement report is obtained after the UE starts periodic measurement and completes measurement, wherein the measurement report contains measurement information obtained by the UE on a downlink signal according to the measurement configuration information sent by the base station, such as downlink RSSI of the base station, RSRP and the like, and the positioning device obtains second positioning information provided by the base station to which the UE is accessed from the received measurement information, and the second positioning information can be RSSI and/or RSRP.
A network side triggering mode,
In this embodiment, the second positioning information provided by the base station to which the UE accesses may be an uplink SRS reported by the UE, and the positioning device receives the uplink SRS sent by the base station and reported by the UE, and uses the received uplink SRS as the second positioning information provided by the base station to which the UE accesses.
And S12, determining second position information of the UE according to the second positioning information.
In specific implementation, if the second positioning information is a downlink signal RSSI of the base station, the positioning device performs algorithm analysis on the downlink signal RSSI of the base station to determine the second position information of the UE, where the algorithm may include, but is not limited to, a cell level positioning method based on CID and E-CID, a fingerprint based on downlink RSRP signal, or a three-point positioning method.
If the second positioning information is an uplink SRS reported by the UE through the LTE base station, the positioning equipment performs algorithm analysis on the uplink SRS to determine the second position information of the UE, wherein the algorithm can be but is not limited to a fingerprint or three-point positioning method based on the uplink SRS, and a UTDOA and OTDOA positioning method based on the uplink SRS.
And S13, judging whether the first positioning information meets the preset positioning condition, if so, executing the step S14, and if not, executing the step S15.
And S14, determining the first position information as the position information of the UE.
And S15, determining the second position information as the position information of the UE, and ending the process.
In specific implementation, step S13 can be implemented according to the flow shown in fig. 1 c:
s131, comparing the Beacon RSSI with a pre-stored reference signal strength indication threshold.
In specific implementation, the positioning device obtains first positioning information provided by a communication module in the UE in a bluetooth positioning mode, where the first positioning information may be a Beacon received signal strength indication RSSI of a bluetooth Beacon, and the positioning device compares the obtained Beacon RSSI with a pre-stored reference signal strength indication threshold.
The reference signal strength indication threshold may be set according to an empirical value, which is not limited in the embodiment of the present invention.
S132, judging whether the Beacon RSSI is smaller than a reference signal strength indication threshold value or not, and if so, executing a step S133; if not, step S134 is executed.
And S133, determining that the first positioning information does not meet the preset positioning condition.
In specific implementation, if it is determined that the first positioning information does not satisfy the preset positioning condition, the second positioning information is determined to be the positioning information of the UE.
S134, determining that the first positioning information meets a preset positioning condition.
Specifically, if it is determined that the first positioning information meets the preset positioning condition, it is determined that the first positioning information is the position information of the UE.
In order to improve the accuracy of the UE location information obtained based on the base station location method, in this embodiment of the present invention, if it is determined that the first location information is the location information of the UE at the current acquisition time, the first location information may be used to determine the location information of the UE located based on the base station at the next acquisition time, specifically, as shown in fig. 1d, the method may include the following steps:
s101, respectively recording first position information of the UE and second position information of the UE at the current acquisition time.
S102, after third positioning information provided by the base station is obtained at the next acquisition time, the UE position information positioned based on the base station at the next acquisition time is determined according to the third positioning information and the first position information of the UE at the current acquisition time.
Step S102 may be implemented according to the flow shown in fig. 1 e:
and S1021, determining the difference value of the first position information and the second position information.
When the Bluetooth mobile phone is specifically implemented, the first position information L determined by Bluetooth positioning at the current acquisition moment isBT(x, y, z) as a reference value and second position information L determined by positioning of the base station at the current acquisition timen(x, y, z) performing difference operation to obtain a difference value epsilon (L) of the first position information of the UE and the second position information of the UE at the current acquisition timen(x,y,z),LBT(x,y,z))。
And S1022, determining the UE position information positioned based on the base station at the next acquisition time according to the obtained difference and the third positioning information received at the next acquisition time.
Specifically, the third positioning information provided by the base station and received at the next acquisition time includes RSRP (reference signal Receiving Power), RSSI (received signal strength indicator) and/or the like, and the UE location information L based on the base station positioning at the next acquisition time is determined according to the difference between the received third positioning information and the difference determined in step S1021n+1(x,y,z)。
Preferably, the UE location information based on the base station location at the next acquisition time can be determined by using the following formula: l isn+1(x,y,z)＝F(RSRP,RSSI,...,ε(Ln(x,y,z),LBT(x,y,z)))
Wherein, F () is a base station positioning algorithm function, which may but not limited to include a downlink-based three-point positioning algorithm, etc.; the RSRP is the reference information receiving power sent by the receiving base station at the next acquisition moment; the RSSI is a received signal strength indication sent by a receiving base station at the next acquisition moment; epsilon (L)n(x,y,z),LBT(x, y, z)) is a difference value of the first location information and the second location information of the UE at the current acquisition time.
For better understanding of the embodiment of the present invention, the flow shown in fig. 1e is described below by taking an LTE downlink three-point positioning algorithm as an example:
the positions of the three LTE base stations A, B, C are (x)a,ya)、(xb,yb)、(xc,yc) The first position information of the UE is determined to be (x) by Bluetooth positioningbt,ybt) Selecting an attenuation factor model as an indoor path loss model:
PL(d)(dB)＝PL(d0)+10*n*log(d/d0)+R (1)
wherein: pl (d) is the path attenuation d meters from the antenna; PL (d)0) Is the path attenuation per unit length from the antenna; n is an attenuation factor, and the value of n is different according to different environments; and R is an attenuation adjustment parameter, in particular to the additional loss caused by floors, partition plates, walls and the like. Therefore, the relation between the RSRP received by the UE and the transmission power and the path loss of the base station can be knownComprises the following steps:
PR＝PT-PL(d)＝PT-PL(d0)-10*n*log(d/d0)-R (2)
wherein, PRA base station RSRP received for the UE; pTTransmitting power for the base station; in the formula, PR、PTAnd n is a fixed constant, and first position information (x) determined from the Bluetooth positioningbt,ybt) And position information of the LTE base station, the path distance d between the three base stations A, B, C and the UE can be obtaineda、db、dc：
The calculated path distance da、db、dcThe attenuation adjustment parameters R of the three LTE base stations A, B, C can be obtained by substituting the attenuation adjustment parameters into the path loss formula (2)a、Rb、Rc。
Because the measured value still has certain deviation with the theoretical value, an R compensation algorithm is introduced to compensate the attenuation adjustment parameter calculated by the path loss formula (2), and the R compensation algorithm is as follows:
in the formula, Rn+1Adjusting parameters for the attenuation of the base station at the next acquisition time; rnAdjusting parameters for the attenuation of the base station at the current acquisition time; rBTObtaining a base station attenuation adjustment parameter for the current acquisition time according to the first position information of the UE determined by Bluetooth positioning, namely calculating the attenuation adjustment parameter value of the path loss formula (2) at the current acquisition time; r'BTAnd obtaining the base station attenuation adjustment parameter for the next acquisition time according to the first position information of the UE determined by the Bluetooth positioning, namely the attenuation adjustment parameter value calculated by the path loss formula (2) at the next acquisition time.
Using the calculated R according to the R compensation algorithm described in equation (4)n+1To face downwardsAnd at the moment of acquisition, the LTE base station positions and determines the position information of the UE to perform position operation, and the operation is circulated in sequence to complete the optimization of the positioning precision of the position information of the UE determined by the LTE base station.
The embodiment of the invention provides a terminal positioning method, which is characterized in that when UE is positioned, first positioning information and first position information provided by a communication module in the UE and second positioning information provided by a base station accessed by the UE are obtained, the second position information of the UE is determined according to the obtained second positioning information, when the first positioning information of the UE meets a pre-stored reference signal intensity indication threshold value, the first position information is determined to be the position information of the UE, otherwise, the second position information obtained based on the base station positioning is determined to be the position information of the UE, the positioning of the terminal under the assistance of the communication module is realized, the indoor positioning precision is improved, and the deployment density of the base station is reduced because indoor equipment does not need to be newly added.
Example II,
The second embodiment provides a terminal positioning device, and as the principle of solving the problem of the device is similar to that of the terminal positioning method, the implementation of the device can refer to the implementation of the method, and repeated details are not repeated.
As shown in fig. 2, a schematic structural diagram of a terminal positioning apparatus provided in an embodiment of the present invention includes: an obtaining unit 21, a first determining unit 22 and a second determining unit 23, wherein:
an obtaining unit 21, configured to obtain first positioning information and first position information provided by a communication module in a user equipment UE and second positioning information provided by a base station to which the UE accesses, respectively, when the UE is located.
The first positioning information comprises a Bluetooth Beacon received signal strength indication RSSI (received signal strength indicator) sent by the UE and measured by the Bluetooth module; the first position information is directly acquired by the positioning equipment from a communication module in the UE, the UE can acquire the position information of the Bluetooth equipment carried in the Bluetooth beacon broadcast frame after starting the Bluetooth, the position information of the Bluetooth equipment is identified as the position of the UE, the UE sends the information as the first position information to the positioning equipment, and the positioning equipment takes the information as the first position information; the second positioning information comprises RSSI and/or RSRP.
A first determining unit 22, configured to determine second location information of the UE according to the second positioning information.
A second determining unit 23, configured to determine that the first location information is location information of the UE if the first location information meets a preset location condition; otherwise, determining the second location information as the location information of the UE.
In a specific implementation, the obtaining unit 21 may include:
when the second positioning information carries the RSSI of the downlink signal of the base station measured by the UE, the obtaining unit 21 includes a sending subunit, a first receiving subunit, and a fourth determining subunit, where:
a sending subunit, configured to send, to the UE, measurement configuration information through the base station.
And the first receiving subunit is configured to receive measurement information sent by the UE through the base station, where the measurement information is obtained by measuring a downlink signal of the base station according to the measurement configuration information.
And the fourth determining subunit is used for determining the second positioning information according to the measurement information.
Preferably, the apparatus further comprises a receiving unit 24, wherein:
and the receiving unit 24 is configured to receive the measurement request sent by the UE forwarded by the third party positioning platform before sending the measurement configuration information to the UE through the base station.
When the second positioning information carries the uplink sounding reference signal SRS reported by the UE, the obtaining unit 21 includes a second receiving subunit and a fifth determining subunit, where:
the second receiving subunit is used for receiving the uplink SRS sent by the base station and reported by the UE;
and a fifth determining subunit, configured to determine the second positioning information according to the uplink SRS.
In specific implementation, the second determining unit 23 includes a comparing subunit and a first determining subunit, where:
and the comparison subunit is used for comparing the Beacon RSSI with a prestored reference signal strength indication threshold value.
The first determining subunit is used for determining that the first positioning information does not meet the preset positioning condition when the Beacon RSSI is smaller than the reference signal strength indication threshold; and when the Beacon RSSI is not less than the reference signal strength indication threshold, determining that the first positioning information meets the preset positioning condition.
Optionally, the terminal positioning apparatus provided in the embodiment of the present invention may further include: a recording unit 25 and a third determination unit 26, wherein:
a recording unit 25, configured to record the first location information of the UE and the second location information of the UE at the current acquisition time, respectively, if the second determining unit 23 determines that the first location information is the location information of the UE.
And a third determining unit 26, configured to determine, after obtaining third positioning information provided by the base station at a next acquisition time, UE position information located based on the base station at the next acquisition time according to the third positioning information and the first position information of the UE.
In a specific implementation, the third determining unit 26 may include a second determining subunit and a third determining subunit, where:
and the second determining subunit is used for determining the difference value of the first position information and the second position information of the UE.
And the third determining subunit is used for determining the position information of the UE positioned on the basis of the base station at the next acquisition time according to the difference and the third positioning information received at the next acquisition time.
For convenience of description, the above parts are separately described as units (or modules) according to functional division. Of course, the functionality of the various elements (or modules) may be implemented in the same one or more pieces of software or hardware in practicing the invention. For example, the terminal positioning apparatus provided in the second embodiment of the present invention may be disposed in a positioning device, and the positioning device determines the location information of the UE.
Example III,
Based on the same inventive concept, according to the terminal positioning method, device and positioning apparatus provided in the above embodiments of the present invention, correspondingly, another embodiment of the present invention further provides a positioning deployment method, a schematic diagram of a positioning deployment structure of which is shown in fig. 3 a:
fig. 3a is a schematic structural diagram of a deployment scheme based on a terminal positioning method according to an embodiment of the present invention, and the deployment scheme based on the terminal positioning method can be described from two aspects of the number and the position of LTE base stations.
It should be noted that, in specific implementation, taking an LTE base station and a bluetooth Beacon device as examples, the number and the positions of the LTE base station and the bluetooth Beacon device are deployed based on the terminal positioning method provided by the embodiment of the present invention.
In terms of quantity, deployment can be performed according to the actual position of the LTE base station, and the distance between two base stations is generally more than 20 meters when the LTE base station is actually deployed, so that the deployment scheme of the terminal positioning method provided by the embodiment of the present invention is divided into two different situations according to the actual position of the LTE base station, as shown in fig. 3 a:
when the deployment position of the LTE base station is in the middle of the regional scene, actual deployment can be carried out according to the ratio of the LTE base station to the Bluetooth Beacon equipment being about 1: 3; if the deployment position of the LTE base station is the edge position of the area, actual deployment can be carried out according to the ratio of the LTE base station to the Bluetooth Beacon equipment being about 2: 3.
In the aspect of position, because the position of LTE basic station is relatively fixed in the present net, it is bigger to redeploye the transformation cost to LTE in the present net, and bluetooth Beacon equipment position is nimble relatively, consequently can use the position of LTE basic station as the center in the actual deployment, divide into three kinds with the position of bluetooth Beacon equipment and deploy, include: median, intermediate and edge positions, as shown in fig. 3 b:
fig. 3b is a schematic structural diagram of another deployment scheme based on the terminal positioning method according to the embodiment of the present invention, where the central position of the bluetooth Beacon device is generally that when the number of LTE base stations is greater than 3, taking the number of LTE base stations as an example, the central intersection point of the coverage areas of 4 LTE base stations can be detected through mobile phone measurement, where the number of LTE base stations is 4; the middle position is generally an area in the middle of a connecting line of two LTE base stations; the edge location is typically at an area scene edge location under the coverage of a single LTE base station.
In summary, the deployment scheme based on the terminal positioning method provided by the embodiment of the present invention can be deployed from both the number and the position of the LTE base stations, and in terms of changing the number of the LTE base stations, positioning of the terminal is achieved by setting the ratio of the LTE base stations to the bluetooth Beacon device according to the deployment of the LTE base stations in the middle of an area scene or at the edge of the area scene; when LTE position is fixed unchangeably, realize mixing the location through the position that changes bluetooth Beacon equipment, reduced the transformation cost of present net, and reduce the deployment precision of bluetooth Beacon equipment, and then reduce the maintenance cost of bluetooth Beacon equipment, and improved LTE positioning accuracy.
According to the terminal positioning method, the device and the positioning equipment provided by the embodiment of the invention, the UE equipment is positioned in a base station and Bluetooth mixed positioning mode, the first position information and the second position information of the UE are determined according to the first position information provided by a communication module in the UE and the second position information provided by the UE access base station, when the determined first position information of the UE meets the preset positioning condition, the first position information of the UE is determined to be the position information of the UE, the second position information of the UE determined by the base station positioning is calibrated according to the determined position information of the UE, and the steps are sequentially circulated, so that the positioning precision of the base station is improved, and the network reconstruction and equipment maintenance cost is reduced.
The terminal positioning device provided by the embodiment of the application can be realized by a computer program. It should be understood by those skilled in the art that the above-mentioned division of modules is only one of many divisions of modules, and if the division into other modules or no division into modules is performed, it is within the scope of the present application as long as the positioning apparatus has the above-mentioned functions.
As will be appreciated by one skilled in the art, embodiments of the present invention may be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The present invention is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (15)
1. A terminal positioning method is characterized by comprising the following steps:
when User Equipment (UE) is positioned, first positioning information and first position information provided by a communication module in the UE and second positioning information provided by a base station accessed by the UE are respectively obtained;
determining second position information of the UE according to the second positioning information;
if the first positioning information meets a preset positioning condition, determining that the first positioning information is the position information of the UE; otherwise, determining the second position information as the position information of the UE;
if the first location information is determined to be the location information of the UE, the method further includes:
respectively recording first position information of the UE and second position information of the UE at the current acquisition moment;
after third positioning information provided by the base station is obtained at the next acquisition time, determining UE position information positioned on the basis of the base station at the next acquisition time according to the third positioning information and the first position information;
after obtaining third positioning information provided by the base station at the next acquisition time, determining, according to the third positioning information and the first position information, the UE position information located based on the base station at the next acquisition time, specifically including:
determining a difference between the first location information and the second location information;
and determining the UE position information positioned based on the base station at the next acquisition time according to the difference and the third positioning information received at the next acquisition time.
2. The method of claim 1, wherein the communication module comprises a bluetooth module, and wherein the first positioning information comprises a bluetooth Beacon Received Signal Strength Indication (RSSI).
3. The method of claim 2, wherein obtaining the first positioning information provided by the bluetooth module specifically comprises:
and receiving the RSSI (received signal strength indicator) of the Beacon received signal strength, which is sent by the UE and measured by the Bluetooth module.
4. The method according to claim 2 or 3, wherein whether the first positioning information meets a preset positioning condition is judged as follows:
comparing the Beacon RSSI with a pre-stored reference signal strength indication threshold;
when the Beacon RSSI is smaller than the reference signal strength indication threshold, determining that the first positioning information does not meet a preset positioning condition;
and when the Beacon RSSI is not less than the reference signal strength indication threshold, determining that the first positioning information meets the preset positioning condition.
5. The method of claim 1, wherein the second positioning information comprises a base station downlink signal RSSI measured by the UE; and obtaining second positioning information provided by a base station accessed by the UE according to the following modes:
sending measurement configuration information to the UE through the base station;
receiving measurement information sent by the UE through the base station, wherein the measurement information is obtained by measuring a downlink signal of the base station according to the measurement configuration information;
and determining the second positioning information according to the measurement information.
6. The method of claim 5, wherein prior to sending measurement configuration information to the UE by the base station, further comprising:
and receiving a measurement request sent by the UE and forwarded by a third party positioning platform.
7. The method of claim 1, wherein the second positioning information comprises an uplink Sounding Reference Signal (SRS) reported by the UE; and obtaining second positioning information provided by a base station accessed by the UE according to the following modes:
receiving an uplink SRS sent by the base station and reported by the UE;
and determining the second positioning information according to the uplink SRS.
8. A terminal positioning device, comprising:
an obtaining unit, configured to obtain first positioning information and first position information provided by a communication module in User Equipment (UE) and second positioning information provided by a base station to which the UE is accessed, respectively, when the UE is located;
a first determining unit, configured to determine second location information of the UE according to the second positioning information;
a second determining unit, configured to determine that the first location information is location information of the UE if the first location information meets a preset location condition; otherwise, determining the second position information as the position information of the UE;
further comprising:
a recording unit, configured to record first location information of the UE and second location information of the UE at a current acquisition time, respectively, if the second determining unit determines that the first location information is location information of the UE;
a third determining unit, configured to determine, after obtaining third positioning information provided by the base station at a next acquisition time, UE position information based on base station positioning at the next acquisition time according to the third positioning information and the first position information;
the third determining unit specifically includes:
a second determining subunit, configured to determine a difference between the first location information and the second location information;
and the third determining subunit is used for determining the UE position information positioned based on the base station at the next acquisition time according to the difference and the third positioning information received at the next acquisition time.
9. The apparatus of claim 8, wherein the communication module comprises a bluetooth module, and wherein the first positioning information comprises a bluetooth Beacon Received Signal Strength Indication (RSSI).
10. The apparatus of claim 9,
the obtaining unit is specifically configured to receive a bluetooth Beacon received signal strength indication RSSI sent by the UE and obtained by measurement by the bluetooth module.
11. The apparatus according to claim 9 or 10, wherein the second determining unit specifically includes:
the comparison subunit is used for comparing the Beacon RSSI with a prestored reference signal strength indication threshold;
the first determining subunit is configured to determine that the first positioning information does not satisfy a preset positioning condition when the Beacon RSSI is smaller than the reference signal strength indication threshold; and when the Beacon RSSI is not less than the reference signal strength indication threshold, determining that the first positioning information meets the preset positioning condition.
12. The apparatus of claim 8, wherein the second positioning information comprises a base station downlink signal RSSI measured by the UE; and
the obtaining unit specifically includes:
a sending subunit, configured to send measurement configuration information to the UE through the base station;
a first receiving subunit, configured to receive measurement information sent by the UE through the base station, where the measurement information is obtained by measuring a downlink signal of the base station according to the measurement configuration information;
a fourth determining subunit, configured to determine the second positioning information according to the measurement information.
13. The apparatus of claim 12, further comprising:
a receiving unit, configured to receive, before the sending subunit sends measurement configuration information to the UE through the base station, a measurement request sent by the UE and forwarded by a third-party positioning platform.
14. The apparatus of claim 8, wherein the second positioning information comprises an uplink Sounding Reference Signal (SRS) reported by the UE; and
the obtaining unit specifically includes:
a second receiving subunit, configured to receive an uplink SRS, which is sent by the base station and reported by the UE;
a fifth determining subunit, configured to determine the second positioning information according to the uplink SRS.
15. A positioning device, characterized in that it comprises a terminal positioning device according to any one of claims 8 to 14.
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| CN110972068A (en) * | 2018-09-28 | 2020-04-07 | 中国移动通信集团甘肃有限公司 | User position distribution detection method and device |
| CN111148215B (en) * | 2019-03-27 | 2021-06-25 | 广东小天才科技有限公司 | Positioning method and system of mobile equipment and related equipment |
| CN110572778A (en) * | 2019-08-02 | 2019-12-13 | 深圳市科迈爱康科技有限公司 | position determination method and device based on multi-network cooperation |
| CN112469118A (en) * | 2020-11-11 | 2021-03-09 | 南京熊猫电子股份有限公司 | Indoor positioning system and method based on LTE small base station |
| CN115996355B (en) * | 2023-03-17 | 2023-06-27 | 新华三技术有限公司 | pRRU selection method and device and storage medium |
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