CN113079456A - Terminal positioning method, device, equipment and computer storage medium - Google Patents

Terminal positioning method, device, equipment and computer storage medium Download PDF

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Publication number
CN113079456A
CN113079456A CN202011272438.7A CN202011272438A CN113079456A CN 113079456 A CN113079456 A CN 113079456A CN 202011272438 A CN202011272438 A CN 202011272438A CN 113079456 A CN113079456 A CN 113079456A
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China
Prior art keywords
positioning
cell
terminal
information
auxiliary information
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CN202011272438.7A
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Chinese (zh)
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徐宏亮
蒋鑫
赵悟
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China Mobile Communications Group Co Ltd
China Mobile Shanghai ICT Co Ltd
CM Intelligent Mobility Network Co Ltd
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China Mobile Communications Group Co Ltd
China Mobile Shanghai ICT Co Ltd
CM Intelligent Mobility Network Co Ltd
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Priority to CN202011272438.7A priority Critical patent/CN113079456A/en
Publication of CN113079456A publication Critical patent/CN113079456A/en
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    • 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

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Position Fixing By Use Of Radio Waves (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

The embodiment of the application provides a method, a device, equipment and a computer storage medium for positioning a terminal, wherein the method comprises the following steps: the method comprises the steps of obtaining first positioning auxiliary information of a base station corresponding to a first cell where a terminal is located, obtaining second positioning auxiliary information of a base station corresponding to at least one second cell, wherein the at least one second cell is a cell which is associated with the terminal except the first cell, positioning the terminal according to the first positioning auxiliary information and the at least one second positioning auxiliary information, and improving the positioning accuracy of the terminal by combining the base station of the cell where the terminal is located and the positioning auxiliary information of the base stations of other cells which can be detected.

Description

Terminal positioning method, device, equipment and computer storage medium
Technical Field
The present application belongs to the field of positioning technologies, and in particular, to a method, an apparatus, a device, and a computer storage medium for positioning a terminal.
Background
From the mobile internet to the internet of things/car networking, location is an essential piece of information. The position of the object/vehicle can be known more accurately by the positioning information with higher precision, and people and objects/vehicles can be better served. In order to realize high-precision positioning, the base station broadcasts differential positioning auxiliary information to the terminal needing positioning through a mobile communication network.
Currently, information for positioning in a third Generation Partnership Project (3rd Generation Partnership Project, 3GPP) protocol is broadcast by a base station to a terminal, and may specifically be in a mode of control plane broadcast or data plane unicast. In consideration of the problem of the broadcast overhead, the positioning assistance information broadcast by each base station is limited, and for different users within the service range of the base station, broadcasting some or a limited number of positioning assistance information cannot meet the positioning requirements of all users. In particular, when the terminal is located at the cell edge, the positioning accuracy is also reduced.
Disclosure of Invention
The embodiment of the application provides a method, a device, equipment and a computer storage medium for positioning a terminal, wherein when the terminal is located at the edge of a cell, the terminal can use the base station of the cell where the terminal is located and the positioning auxiliary information broadcasted or unicasted by the base stations of other cells which can be detected to perform positioning, so that the positioning accuracy of the terminal is improved.
In a first aspect, an embodiment of the present application provides a method for positioning a terminal, where the method is applied to the terminal, and the method includes:
acquiring first positioning auxiliary information of a base station corresponding to a first cell in which a terminal is located; acquiring second positioning auxiliary information of a base station corresponding to at least one second cell, wherein the at least one second cell is a cell associated with the terminal except the first cell;
and positioning the terminal according to the first positioning auxiliary information and the at least one second positioning auxiliary information.
In one possible implementation, the target parameter value of the second cell is greater than a preset threshold.
In a possible implementation manner, the obtaining second positioning assistance information of a base station corresponding to at least one second cell includes:
sending the identifier of the at least one second cell to a positioning server, wherein the identifier of the second cell is used for the positioning server to acquire second positioning auxiliary information of the base station corresponding to the at least one second cell;
and receiving at least one second positioning auxiliary information returned by the positioning server.
In a possible implementation manner, positioning the terminal according to the first positioning assistance information and the at least one item of second positioning assistance information specifically includes:
calculating a field average value of the first positioning auxiliary information and at least one second positioning auxiliary information to obtain first determined positioning auxiliary information;
and positioning the terminal according to the first determined positioning auxiliary information.
In a possible implementation manner, positioning the terminal according to the first positioning assistance information and the at least one second positioning assistance information specifically includes:
acquiring first position information of a terminal, a first cell and a second cell;
respectively calculating a first distance between the terminal and a base station corresponding to the first cell and a second distance between the terminal and a base station corresponding to the second cell according to the first position information of the terminal, the first cell and the second cell;
when the first distance is smaller than or equal to the second distance, positioning the terminal according to the first positioning auxiliary information;
and when the first distance is greater than the second distance, positioning the terminal according to the second positioning auxiliary information.
In one possible implementation, the target parameter value includes one or more of a reference signal received power value, a reference signal received quality value, a received signal strength indication value, an A3 event in a mobile communication protocol, an a4 event of the second cell.
In a second aspect, an embodiment of the present application provides a method for positioning a terminal, which is applied to a positioning server, and the method includes:
acquiring third positioning auxiliary information of a base station corresponding to a first cell in which a terminal is located;
receiving an identifier of at least one second cell sent by a terminal, wherein the at least one second cell is a cell associated with the terminal except the first cell;
acquiring fourth auxiliary positioning information of the base station corresponding to the at least one second cell according to the identifier of the at least one second cell;
and positioning the terminal according to the third positioning auxiliary information and at least one fourth positioning auxiliary information.
In a third aspect, an embodiment of the present application provides a terminal positioning apparatus, where the apparatus includes:
the first acquisition module is used for acquiring first positioning auxiliary information of a base station corresponding to a first cell in which a terminal is located; a second obtaining module, configured to obtain second positioning assistance information of a base station corresponding to at least one second cell, where the at least one second cell is a cell associated with the terminal except for the first cell;
and the first positioning module is used for positioning the terminal according to the first positioning auxiliary information and the at least one second positioning auxiliary information.
In a fourth aspect, an embodiment of the present application provides a terminal positioning apparatus, where the apparatus includes:
a third obtaining module, configured to obtain third positioning assistance information of a base station corresponding to a first cell in which a terminal is located;
a receiving module, configured to receive an identifier of at least one second cell sent by a terminal, where the at least one second cell is a cell associated with the terminal except for a first cell; (ii) a
A fourth obtaining module, configured to obtain fourth auxiliary positioning information of the base station corresponding to the at least one second cell according to the identifier of the at least one second cell;
and the second positioning module is used for positioning the terminal according to the third positioning auxiliary information and at least one fourth positioning auxiliary information.
In a fifth aspect, an embodiment of the present application provides a terminal positioning device, where the device includes:
a processor, and a memory storing computer program instructions; the processor reads and executes the computer program instructions to implement the first aspect or any one of the possible implementations of the first aspect, and the second aspect or any one of the possible implementations of the second aspect.
In a sixth aspect, the present application provides a computer storage medium, where computer program instructions are stored on the computer storage medium, and when executed by a processor, the computer program instructions implement the first aspect or any one of the possible implementations of the first aspect, and the method for positioning a terminal in the second aspect or any one of the possible implementations of the second aspect.
Compared with the prior art, the method has the following beneficial effects:
in the embodiment of the application, positioning is performed according to the first positioning auxiliary information of the base station corresponding to the cell where the terminal is located and the second positioning auxiliary information of the base station corresponding to the cell associated with the terminal except the cell where the terminal is located, and by combining the positioning auxiliary information of different base stations, the error of the positioning auxiliary information finally used for calculating the terminal position information is smaller, and the positioning accuracy of the terminal is further improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the embodiments of the present application will be briefly described below, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a flowchart illustrating a method for positioning a terminal according to an embodiment of the present application;
fig. 2 is a flowchart illustrating another method for positioning a terminal according to an embodiment of the present application;
fig. 3 is a flowchart illustrating a further method for positioning a terminal according to an embodiment of the present application;
fig. 4 is a schematic structural diagram of a terminal positioning apparatus according to an embodiment of the present application;
fig. 5 is a schematic structural diagram of another terminal positioning device provided in an embodiment of the present application;
fig. 6 is a schematic structural diagram of an end positioning apparatus device according to an embodiment of the present application.
Detailed Description
Features and exemplary embodiments of various aspects of the present application will be described in detail below, and in order to make objects, technical solutions and advantages of the present application more apparent, the present application will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are intended to be illustrative only and are not intended to be limiting. It will be apparent to one skilled in the art that the present application may be practiced without some of these specific details. The following description of the embodiments is merely intended to provide a better understanding of the present application by illustrating examples thereof.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
With the rapid development of the internet, the positioning service is more and more widely applied, and in our life, there are typical navigation, high-precision map display, and various driving assistance and automatic driving scenes in the internet of vehicles, such as intersection collision warning, travel service, and the like.
The most common Positioning method is satellite Positioning, the four Global satellite Positioning systems are respectively beidou of china, Global Positioning System (GPS) of the united states, Global Positioning System (Global Positioning System SATELLITE SYSTEM, GLONASS) of russia, and galileo of the european union, the working principles of various satellite Positioning systems are substantially the same, and taking GPS as an example, the Positioning method can be simply understood as being composed of 24 working satellites, so that more than 4 satellites can be observed at any place and any time in the world, the distance between the satellite with the known position and a user receiver is measured, and then the specific position of the receiver can be known by integrating the data of a plurality of satellites. Therefore, the quality of the received satellite signal is greatly related to the positioning accuracy, but the satellite signal is easily affected by factors such as sun black movement, severe weather, electromagnetic interference and the like, and the factors cannot be avoided.
In order to cancel these interferences, a differential positioning technique generally adopted in the industry is based on the principle that a ground base station is arranged to measure a current satellite signal, a differential parameter of the signal is calculated according to a known actual position of the ground base station and a received satellite signal, the differential parameter includes influences caused by various interference factors, the base station sends the differential parameter to a user, and the user corrects a measurement result by using the differential parameter to obtain an accurate positioning result. Therefore, in order to achieve high-precision positioning, the terminal performing positioning needs to receive differential positioning assistance information.
In the prior art, a Positioning terminal or a Positioning server broadcasts differential Positioning assistance Information of a base station through a mobile communication network, and specifically, in a 3GPP TS37.355 V15.0.0 protocol, broadcasts differential Positioning assistance Information through an infinite Resource Control (RRC) and a Positioning System Information Block (pos System Information blocks, SIs Information) in a System Information (SI) message, such as global real-time dynamic carrier phase difference component data GLO-RTK-biasinfo, global navigation satellite System real-time dynamic carrier phase difference component correction difference-RTK-MAC-correction differences, global navigation satellite System real-time dynamic carrier phase difference residual GNSS-RTK-Residuals, global navigation satellite System real-time dynamic carrier phase difference domain correction parameters GNSS-RTK-FKP-Gradients, and the like.
In practical application, the distance between the physical reference stations is generally set to be 20Km to 80Km, and the distance between the base stations of the 4G/5G network is generally several hundred meters to several kilometers, so that there are cases where the information of the reference stations matched and transmitted by the base stations distributed at different positions is the same.
In addition, in a wireless communication network, a terminal may move and the terminal may be handed over from one cell to another cell, or even to another base station. The decision of switching is that when the terminal measures that the signal of the adjacent cell is good enough, the terminal informs the base station through some signaling that the terminal measures the adjacent cell with good enough signal, at this moment, the base station can decide to initiate switching, and the terminal is switched to the new cell from this, and the subsequent service is provided by the new cell. In consideration of the problem of broadcasting overhead, the reference station information broadcast by each base station is limited, and for different users in the range served by the base station, broadcasting some or a limited number of reference station information cannot meet the requirement of all users for positioning, and especially when the terminal is located at the edge of a cell, the positioning accuracy is also reduced.
In order to solve the prior art problems, embodiments of the present application provide a method, an apparatus, a device, and a computer storage medium for positioning a terminal. First, a method for positioning a terminal provided in an embodiment of the present application is described below.
It should be noted that the positioning method of the present application may be applied to a terminal, and may also be applied to a positioning server.
When the method is applied to the terminal, the terminal respectively acquires the first positioning auxiliary information of the base station corresponding to the first cell where the terminal is located and the second positioning auxiliary information of the base station corresponding to the at least one second cell, and performs terminal positioning according to the first positioning auxiliary information and the at least one second positioning auxiliary information. Meanwhile, the terminal can report the identifier of the second cell to the positioning server, the positioning server determines the second positioning auxiliary information according to the identifier of the second cell and sends the second positioning auxiliary information to the terminal, and the terminal does not need to decode the broadcast information of the second cell, so that the energy consumption of the terminal is saved.
Fig. 1 shows a flowchart of a method for positioning a terminal according to an embodiment of the present application. The method for positioning a terminal provided in this embodiment is applied to a terminal, and as shown in fig. 1, the method may include the following steps:
s110, first positioning auxiliary information of a base station corresponding to a first cell where the terminal is located is obtained.
In order to improve the positioning accuracy of the terminal, the terminal obtains first positioning auxiliary information of a base station corresponding to a first cell where the terminal is located. The first positioning assistance information is a field value in a system information block used for positioning in broadcasting the differential positioning assistance information by a base station corresponding to a cell where the terminal is located through a 3GPP TS37.355 V15.0.0 protocol, for example, in a GLO-RTK-BiasInformation-r15 cell, the field value of l1-ca-cpBias-r15 is the first positioning assistance information.
The terminal may obtain the first positioning assistance information by receiving a message broadcast or unicast or multicast by the base station or the reference station. For example, a base station of a first cell in which the terminal is located broadcasts first positioning assistance information, and the terminal obtains the first positioning assistance information by receiving the broadcast message. The terminal may also request the reference station information from the base station or the positioning server, and then the base station or the positioning server sends the reference station information to the terminal, which is not limited herein.
S120, obtain second positioning assistance information of a base station corresponding to at least one second cell, where the at least one second cell is a cell associated with the terminal except the first cell.
When the terminal is located at the edge of the cell, the first auxiliary positioning information of the first cell where the terminal is located at this time may not necessarily meet the positioning requirement of the terminal, and in order to improve the positioning accuracy, the terminal needs to obtain more accurate auxiliary positioning information. The terminal obtains second positioning assistance information of a base station corresponding to at least one second cell, where the at least one second cell is a cell associated with the terminal except the first cell, and the cell associated with the terminal is a cell that can be detected by the terminal, that is, the second cell may be a neighboring cell of the first cell, or may be a cell that is not neighboring to the first cell, as long as the cell can be detected by the terminal, and this is not limited herein.
And the target parameter value of the second cell is greater than a preset threshold value. The target parameter values include one or more of an A3 event, an a4 event, a Reference Signal Receiving Power value (RSRP) of the neighboring cell, a Reference Signal Receiving Quality value (RSRQ) of the neighboring cell, a Received Signal Strength Indication value (RSSI) of the neighboring cell, and the like in the 3GPP protocol.
When the target parameter value is greater than the preset threshold value, it is indicated that the signal of the cell is good, and the positioning auxiliary information of the base station corresponding to the cell is beneficial to improving the positioning accuracy of the terminal.
For example, if the RSRP of the second cell is set to-90 dBm, the terminal may measure the pilot signal of a certain cell other than the first cell, and if the terminal measures the RSRP of the pilot signal of the certain cell to-80 dBm, the terminal may determine that the target parameter value of the certain cell is greater than the preset threshold value since-80 dBm is greater than-90 dBm.
Alternatively, the threshold of the A3 event of the second cell is set to 3dB, the terminal measures the pilot signal of a certain cell except the first cell and calculates the A3 value according to the 3GPP protocol, and if the A3 value measured by the terminal is 5dB, the terminal determines that the target parameter value of the neighboring cell is greater than the preset threshold value since 5dB is greater than 3 dB.
Besides, it is also possible to configure an a4 event of other cells than the first cell, or RSRQ values of other cells than the first cell, or RSSI values of other cells than the first cell, or overrun thresholds of all target parameter values, or combinations of more than one of all target parameter values, and compare the measured target parameter values or combinations of target parameter values with the corresponding overrun thresholds, respectively, in the same way as the above examples, which are not listed here.
And if the target parameter value of a certain second cell is larger than the preset threshold value, the terminal acquires second positioning auxiliary information of the base station corresponding to the cell. And if the target parameter values of the second cells are larger than the preset threshold value, the terminal acquires second positioning auxiliary information of the base station corresponding to the detected cells.
The second positioning assistance information is a field value in a system information block used for positioning in broadcasting the differential positioning assistance information by a base station corresponding to a cell which can be detected by the terminal except for the cell where the terminal is located through a 3GPP TS37.355 V15.0.0 protocol, for example, in a GLO-RTK-BiasInformation-r15 cell, the field value of l2-p-cpBias-r15 is the second positioning assistance information.
The terminal may receive a message broadcasted by the base station or the reference station or unicasted or multicasted to obtain the second positioning assistance information, for example, the base station of the second cell broadcasts the second positioning assistance information, and the terminal obtains the second positioning assistance information by receiving the broadcast message. The terminal may also request the reference station information from the base station or the positioning server, and the base station or the positioning server sends the second positioning assistance information to the terminal, which is not limited herein.
In one embodiment, obtaining second positioning assistance information of a base station corresponding to at least one second cell includes:
sending the identifier of the at least one second cell to a positioning server, wherein the identifier of the second cell is used for the positioning server to acquire second positioning auxiliary information of the base station corresponding to the at least one second cell;
and receiving at least one second positioning auxiliary information returned by the positioning server.
The terminal can directly acquire the positioning auxiliary information of the base station corresponding to the at least one second cell by decoding the broadcast message of the second cell, and also can send the identifier of the at least one second cell to the positioning server, the positioning server acquires the second positioning auxiliary information of the base station corresponding to the second cell according to the identifier of the second cell and sends the second positioning auxiliary information to the terminal, and the terminal does not need to decode the broadcast message of the second cell, so that the energy consumption of the terminal is saved.
The positioning server may obtain the second positioning assistance information through other servers or base stations or self-measurement. The positioning server may also request the positioning network server to obtain the second reference station information when the terminal requests the second reference station information from the positioning server.
And the terminal receives the second positioning auxiliary information sent by the positioning server for calculating the position information of the terminal.
S130, positioning the terminal according to the first positioning auxiliary information and the at least one second positioning auxiliary information.
And the terminal carries out terminal positioning according to the first positioning auxiliary information and the at least one second positioning auxiliary information.
In one embodiment, the positioning the terminal according to the first positioning assistance information of the target parameter value and the second positioning assistance information of the at least one target parameter value specifically includes:
calculating a field average value of the first positioning auxiliary information and at least one second positioning auxiliary information to obtain first determined positioning auxiliary information;
and positioning the terminal according to the first determined positioning auxiliary information.
And when the number of the second positioning auxiliary information is 1, adding the first positioning auxiliary information and the second positioning auxiliary information, and then dividing by 2 to obtain first determined positioning auxiliary information, wherein the first determined positioning auxiliary information is auxiliary positioning information finally used for terminal positioning.
Specifically, the GLO-RTK-BiasInformation value of the base station corresponding to the first cell is added to the GLO-RTK-BiasInformation value of the base station corresponding to the second cell, and then divided by 2 to obtain the GLO-RTK-BiasInformation value for final positioning calculation.
Taking the field value of l1-ca-cpBias-r15 in the GLO-RTK-BiasInformation cell of the first cell corresponding base station and the field value of l1-ca-cpBias-r15 in the GLO-RTK-BiasInformation cell of the second cell corresponding base station as an example, the first definite positioning assistance information can be expressed as the following formula:
l1-ca-cpBias-r15_Calculated＝(l1-ca-cpBias-r15(r1)+l1-ca-cpBias-r15(r2))/2·························(1)
wherein l1-ca-cpBias-r15_ called represents the first positioning assistance information, l1-ca-cpBias-r15(r1) represents the first positioning assistance information, and l1-ca-cpBias-r15(r2) represents the second positioning assistance information.
When the number of the second positioning assistance information is greater than 1, taking 2 as an example here, the first positioning assistance information and 2 second positioning assistance information are added, and then divided by 3, so as to obtain first determined positioning assistance information, which is the auxiliary positioning information finally used for terminal positioning.
Specifically, the GLO-RTK-BiasInformation value of the base station corresponding to the first cell is added to the GLO-RTK-BiasInformation values of the base stations corresponding to the 2 second cells, and then divided by 3 to obtain the GLO-RTK-BiasInformation value for the final positioning calculation.
Taking as an example the l1-ca-cpBias-r15(r1) field value in the first cell corresponding base station GLO-RTK-BiasInformation cell, the l1-ca-cpBias-r15(r2_1) field value in the first second cell corresponding base station GLO-RTK-BiasInformation cell, and the l1-ca-cpBias-r15(r2_2) field value in the second cell corresponding base station GLO-RTK-BiasInformation cell, the first determined positioning assistance information may be expressed as the following formula:
l1-ca-cpBias-r15_Calculated＝(l1-ca-cpBias-r15(r1)+l1-ca-cpBias-r15(r2_1)+l1-ca-cpBias-r15(r2_2))/3···············(2)
wherein l1-ca-cpBias-r15_ called represents the first positioning assistance information, l1-ca-cpBias-r15(r1) represents the first positioning assistance information, l1-ca-cpBias-r15(r2_1) represents the first second positioning assistance information, and l1-ca-cpBias-r15(r2_2) represents the second positioning assistance information.
Here, the first second positioning assistance information and the second positioning assistance information are not specifically ordered, but are merely to distinguish different second positioning assistance information. When there are 3 or 4 or more second positioning assistance information, they may be added one by one and then averaged in a manner similar to equation (2), which is not listed here.
The calculation method for other fields in the GLO-RTK-Biasinformation IE, such as fields l1-p-cpBIAs-r15, l2-ca-cpBIAs-r15, l2-p-cpBIAs-r15, is the same as that of the above formula (1) or formula (2), and is not repeated here. Meanwhile, the calculation method for the relevant fields in all the positioning assistance information, such as GNSS-RTK-MAC-correction relays, GNSS-RTK-results, GNSS-RTK-FKP-Gradients, etc., is the same as the method of the above formula (1) or formula (2), and is not repeated here.
The first determined positioning auxiliary information obtained by the calculation of the method is more stable and robust, so that the position information finally calculated by the terminal is more accurate.
In one embodiment, the positioning the terminal according to the first positioning assistance information and the at least one second positioning assistance information specifically includes:
acquiring first position information of a terminal, a first cell and a second cell;
respectively calculating a first distance between the terminal and a base station corresponding to the first cell and a second distance between the terminal and a base station corresponding to the second cell according to the first position information of the terminal, the first cell and the second cell;
when the first distance is smaller than or equal to the second distance, positioning the terminal according to the first positioning auxiliary information;
and when the first distance is greater than the second distance, positioning the terminal according to the second positioning auxiliary information.
The terminal may select a value of a corresponding field of a base station closest to itself as a corresponding field value with which the location information is finally calculated.
Specifically, the terminal acquires approximate location information of the terminal, the first cell, and the second cell, and determines which cell corresponds to the base station closer to the terminal. If the first distance between the terminal and the base station corresponding to the first cell is smaller than or equal to the second distance between the terminal and the base station corresponding to the second cell, selecting the first positioning auxiliary information to calculate the position of the terminal; and if the first distance is larger than the second distance, selecting the second positioning auxiliary information to calculate the position of the terminal. The positioning auxiliary information selected by the method can reflect the error information of the current position of the terminal more accurately, and the calculated terminal position information is more accurate.
In the embodiment of the application, the first positioning auxiliary information of the base station corresponding to the first cell in which the terminal is located is obtained, the second positioning auxiliary information of the base station corresponding to at least one second cell is obtained, the terminal is positioned according to the first positioning auxiliary information and the at least one second positioning auxiliary information, and the positioning accuracy of the terminal can be improved by combining the base station of the cell in which the terminal is located and the positioning auxiliary information of the base stations of other cells which can be detected.
Fig. 2 is a flowchart illustrating a method for positioning a terminal according to another embodiment of the present application. As shown in fig. 2, the method may include the steps of:
s210, acquiring first positioning auxiliary information of a base station corresponding to a first cell where the terminal is located.
S220, sending the identifier of the at least one second cell to a positioning server, and receiving at least one second positioning assistance information obtained by the positioning server according to the identifier of the at least one second cell, where the at least one second cell is a cell associated with the terminal except the first cell.
The terminal sends the identifier of the second cell, which can be detected except the first cell, to the positioning server, the positioning server acquires the second positioning auxiliary information of the base station corresponding to the second cell according to the identifier of the second cell and sends the second positioning auxiliary information to the terminal, and the terminal does not need to decode the broadcast information of the second cell, so that the energy consumption of the terminal is saved.
The positioning server may obtain the second positioning assistance information through other servers or base stations or self-measurement. The positioning server may also request the positioning network server to obtain the second reference station information when the terminal requests the second reference station information from the positioning server.
And the terminal receives the second positioning auxiliary information sent by the positioning server for calculating the position information of the terminal.
And S230, positioning the terminal according to the first positioning auxiliary information and the at least one second positioning auxiliary information.
S210 and S230 are the same as S110 and S130 in the above-described embodiments, and for the sake of brevity, will not be described in detail here.
In the embodiment of the application, by receiving the second positioning auxiliary information sent by the positioning server, the broadcast message of the base station corresponding to the second positioning auxiliary information does not need to be decoded, so that the positioning accuracy of the terminal is improved, and the energy consumption of the terminal is saved.
The foregoing embodiment is described as being applied to a terminal as an example, and as another embodiment of the present application, the present application further provides a positioning method applied to a positioning server, and specifically refer to fig. 3.
Fig. 3 is a flowchart illustrating a method for positioning a terminal according to another embodiment of the present application. As shown in fig. 3, the method may include the steps of:
s310, acquiring third positioning auxiliary information of a base station corresponding to a first cell where the terminal is located.
And the positioning server obtains the third positioning auxiliary information of the base station corresponding to the first cell through configuration or positioning of a network server or the base station or self measurement. The positioning server may also request the positioning network server to obtain the third positioning assistance information of the base station corresponding to the first cell when the terminal requests the reference station information from the positioning server.
S320, receiving an identifier of at least one second cell sent by the terminal, wherein the at least one second cell is a cell associated with the terminal except the first cell.
And the positioning server receives the identification of at least one second cell sent by the terminal, wherein the at least one second cell is a cell associated with the terminal except the first cell. Wherein the target parameter value of the second cell is greater than a preset threshold value, and the target parameter value comprises one or more of reference signal received power, reference signal received quality, received signal strength indication, A3 event in mobile communication protocol, and A4 event of the second cell.
S330, acquiring fourth auxiliary positioning information of the base station corresponding to the at least one second cell according to the identifier of the at least one second cell.
And when the number of the identifiers of the second cell sent by the receiving terminal of the positioning server is 1, acquiring fourth positioning auxiliary information of the base station corresponding to the second cell of the identifier. And if the number of the identifiers of the second cell sent by the receiving terminal of the positioning server is more than 1, the positioning server acquires the fourth positioning auxiliary information of the base stations corresponding to the plurality of adjacent cells.
And the positioning server obtains the fourth positioning auxiliary information of the base station corresponding to the first cell by configuring or positioning a network server or the base station or by self-measurement. The positioning server may also request the positioning network server to obtain the fourth positioning assistance information of the base station corresponding to the first cell when the terminal requests the reference station information from the positioning server.
The fourth positioning auxiliary information is acquired by the positioning server instead of the terminal, so that the terminal does not need to detect the broadcast message of the second cell in real time and decode the broadcast message of the second cell, and the energy consumption of the terminal is saved.
And S340, positioning the terminal according to the third positioning auxiliary information and the at least one fourth positioning auxiliary information.
The method for the positioning server to perform terminal positioning according to the third positioning assistance information and the at least one fourth positioning assistance information is the same as the method for the terminal to perform terminal positioning according to the first positioning assistance information and the at least one second positioning assistance information in the above-mentioned method S130, and for the sake of brevity, a detailed description is omitted here. Because the terminal does not need to participate in high-precision positioning, the requirement on terminal function configuration is reduced, and the cost of the terminal is further reduced.
In the embodiment of the present application, third positioning assistance information of a base station corresponding to a first cell in which a terminal is located is obtained, an identifier of at least one second cell sent by the terminal is received, where the at least one second cell is a cell associated with the terminal except the first cell, fourth positioning assistance information of the base station corresponding to the at least one second cell is obtained according to the identifier of the at least one second cell, and terminal positioning is performed according to the third positioning assistance information and the at least one fourth positioning assistance information. The fourth positioning auxiliary information of the adjacent cell is obtained through the positioning server, the positioning server calculates the high-precision positioning position information, the terminal does not need to participate in the calculation of the high-precision positioning position information, and meanwhile, the broadcast information of the adjacent cell does not need to be detected constantly, so that the cost of the terminal is reduced and the energy consumption of the terminal is saved while the high-precision positioning is realized.
Based on the terminal positioning methods provided by the embodiments, it can be known that the terminal positioning method shown in fig. 1 is applied to a terminal, the terminal can obtain first positioning auxiliary information of a first cell where the terminal is located and second positioning auxiliary information corresponding to a base station of a second cell which can be detected by the terminal except the first cell, and calculate position information of the terminal according to the first positioning auxiliary information and the second positioning auxiliary information, and particularly, when the terminal is located in an overlapping area of two cells, the positioning auxiliary information can be preferentially or weighted, so that more accurate auxiliary positioning information is determined to position the terminal, and the terminal positioning accuracy is improved. The method for positioning the terminal shown in fig. 2 is achieved by interaction between the terminal and the server, the positioning server obtains the second positioning auxiliary information, and sends the second positioning auxiliary information to the terminal for positioning, and the positioning server obtains the second positioning auxiliary information. The method for positioning the terminal shown in fig. 3 is also completed by the interaction of the terminal and the positioning server, and in the method, the positioning server completes the acquisition of the positioning auxiliary information of all the cells and the positioning of the terminal, so that the cost of the terminal can be reduced because the terminal does not need to participate in the calculation of the high-precision positioning position information, and meanwhile, the energy consumption of the terminal is saved because the broadcast information of the neighboring cell does not need to be detected in real time.
Based on the terminal positioning method provided by the above embodiment, correspondingly, the application further provides a specific implementation manner of the terminal positioning device.
Fig. 4 shows a schematic structural diagram of a terminal positioning device according to an embodiment of the present application. As shown in fig. 4, the terminal positioning apparatus 400 includes:
a first obtaining module 410, configured to obtain first positioning assistance information of a base station corresponding to a first cell in which a terminal is located;
a second obtaining module 420, configured to obtain second positioning assistance information of a base station corresponding to at least one second cell; the at least one second cell is a cell associated with the terminal other than the first cell; (ii) a
The first positioning module 430 is configured to position the terminal according to the first positioning assistance information and the at least one second positioning assistance information.
According to the embodiment of the application, the positioning accuracy of the terminal can be improved by combining the base station of the cell where the terminal is located and the positioning auxiliary information of the base stations of other cells which can be detected.
In one embodiment, in order to ensure that the second positioning assistance information of the base station corresponding to the second cell is beneficial to improving the positioning accuracy, the target parameter value of the second cell is greater than the preset threshold.
In an embodiment, in order to improve the positioning accuracy and save energy consumption of the terminal, the second obtaining module 420 is specifically configured to send an identifier of at least one second cell to the positioning server, where the identifier of the second cell is used for the positioning server to obtain second positioning assistance information of a base station corresponding to the at least one second cell;
receiving the at least one piece of second positioning assistance information returned by the positioning server.
In an embodiment, in order to improve the accuracy of calculating the position information of the terminal, the first positioning module 430 may be specifically configured to calculate a field average of the first positioning assistance information and the at least one second positioning assistance information, so as to obtain first determined positioning assistance information;
and positioning the terminal according to the first determined positioning auxiliary information.
In one embodiment, to improve the accuracy of calculating the location information of the terminal, the first location module 430 may be specifically configured to obtain first location information of the terminal, the first cell, and the second cell;
respectively calculating a first distance between the terminal and a base station corresponding to the first cell and a second distance between the terminal and a base station corresponding to the second cell according to the first position information of the terminal, the first cell and the second cell;
when the first distance is smaller than or equal to the second distance, positioning the terminal according to the first positioning auxiliary information;
and when the first distance is greater than the second distance, positioning the terminal according to the second positioning auxiliary information.
In one embodiment, the target parameter values include one or more of a reference signal received power value, a reference signal received quality value, a received signal strength indication value, an A3 event in a mobile communication protocol, an a4 event of the second cell.
Fig. 5 shows a schematic structural diagram of a terminal positioning device according to another embodiment of the present application. As shown in fig. 5, the terminal positioning apparatus 500 includes:
a third obtaining module 510, configured to obtain third positioning assistance information of a base station corresponding to a first cell in which the terminal is located;
a receiving module 520, configured to receive an identifier of at least one second cell sent by a terminal, where the at least one second cell is a cell associated with the terminal except for a first cell;
a fourth obtaining module 530, configured to obtain fourth auxiliary positioning information of the base station corresponding to the at least one second cell according to the identifier of the at least one second cell;
the second positioning module 540 is configured to position the terminal according to the third positioning assistance information and the at least one fourth positioning assistance information.
According to the embodiment of the application, the positioning server of the fourth acquisition module is used for acquiring the fourth positioning auxiliary information of other cells which can be detected except the first cell, the positioning server of the second positioning module is used for calculating the high-precision positioning position information, the terminal does not need to participate in the calculation of the high-precision positioning position information, and meanwhile, the terminal does not need to detect the broadcast information of the adjacent cell constantly, so that the cost of the terminal is reduced and the energy consumption of the terminal is saved while the high-precision positioning is realized.
In one embodiment, in order to ensure that the fourth positioning assistance information of the base station corresponding to the second cell is beneficial to improving the positioning accuracy, the target parameter value of the second cell is greater than the preset threshold.
In an embodiment, in order to improve the accuracy of calculating the position information of the terminal, the second positioning module 540 may be specifically configured to calculate a field average of the third positioning assistance information and at least one fourth positioning assistance information, so as to obtain second determined positioning assistance information;
and positioning the terminal according to the second determined positioning auxiliary information.
In one embodiment, to improve the accuracy of calculating the terminal location information, the second positioning module 540 may be specifically configured to obtain second location information of the terminal, the first cell and the second cell;
respectively calculating a third distance between the terminal and the base station corresponding to the first cell and a fourth distance between the terminal and the base station corresponding to the second cell according to the second position information of the terminal, the first cell and the second cell;
when the third distance is smaller than or equal to the fourth distance, positioning the terminal according to the third positioning auxiliary information;
and when the third distance is greater than the fourth distance, positioning the terminal according to the fourth positioning auxiliary information.
In one embodiment, the target parameter values include one or more of a reference signal received power, a reference signal received quality, a received signal strength indication, an A3 event in a mobile communication protocol, an a4 event of the second cell.
Fig. 6 shows a hardware structure diagram of a terminal positioning device provided in an embodiment of the present application.
The positioning device at the terminal may comprise a processor 601 and a memory 602 in which computer program instructions are stored.
Specifically, the processor 601 may include a Central Processing Unit (CPU), an Application Specific Integrated Circuit (ASIC), or one or more Integrated circuits configured to implement the embodiments of the present Application.
Memory 602 may include mass storage for data or instructions. By way of example, and not limitation, memory 602 may include a Hard Disk Drive (HDD), floppy Disk Drive, flash memory, optical Disk, magneto-optical Disk, tape, or Universal Serial Bus (USB) Drive or a combination of two or more of these. In one example, the memory 602 may include removable or non-removable (or fixed) media, or the memory 602 is non-volatile solid-state memory. The memory 602 may be internal or external to the integrated gateway disaster recovery device.
In one example, memory 602 may include Read Only Memory (ROM), Random Access Memory (RAM), magnetic disk storage media devices, optical storage media devices, flash memory devices, electrical, optical, or other physical/tangible memory storage devices. Thus, in general, the memory 602 includes one or more tangible (non-transitory) computer-readable storage media (e.g., a memory device) encoded with software comprising computer-executable instructions and when the software is executed (e.g., by one or more processors), it is operable to perform operations described with reference to a method according to an aspect of the present application.
The processor 601 reads and executes the computer program instructions stored in the memory 602 to implement steps S110 to S140 in the embodiment shown in fig. 1, or steps S210 to S240 in the embodiment shown in fig. 2, or steps S310 to S340 in the embodiment shown in fig. 3, and achieve the corresponding technical effects achieved by the example executing method/step shown in fig. 1, or fig. 2, or fig. 3, which are not described herein again for brevity.
In one example, the terminal positioning device may also include a communication interface 603 and a bus 610. As shown in fig. 6, the processor 601, the memory 602, and the communication interface 603 are connected via a bus 610 to complete communication therebetween.
The communication interface 603 is mainly used for implementing communication between modules, apparatuses, units and/or devices in the embodiments of the present application.
Bus 610 includes hardware, software, or both to couple the components of the end positioning device to each other. By way of example, and not limitation, a Bus may include an Accelerated Graphics Port (AGP) or other Graphics Bus, an Enhanced Industry Standard Architecture (EISA) Bus, a Front-Side Bus (Front Side Bus, FSB), a Hyper Transport (HT) interconnect, an Industry Standard Architecture (ISA) Bus, an infiniband interconnect, a Low Pin Count (LPC) Bus, a memory Bus, a Micro Channel Architecture (MCA) Bus, a Peripheral Component Interconnect (PCI) Bus, a PCI-Express (PCI-X) Bus, a Serial Advanced Technology Attachment (SATA) Bus, a video electronics standards association local (VLB) Bus, or other suitable Bus or a combination of two or more of these. Bus 610 may include one or more buses, where appropriate. Although specific buses are described and shown in the embodiments of the application, any suitable buses or interconnects are contemplated by the application.
The terminal positioning device may execute the method for positioning the terminal in the embodiment of the present application based on the first positioning assistance information of the base station corresponding to the first cell and the second positioning assistance information of the base station corresponding to the second cell, so as to implement the method for positioning the terminal described in conjunction with fig. 1, fig. 2, or fig. 3.
In addition, in combination with the method for positioning a terminal in the foregoing embodiments, the embodiments of the present application may provide a computer storage medium to implement. The computer storage medium having computer program instructions stored thereon; the computer program instructions, when executed by a processor, implement any of the above-described embodiments of the method for terminal positioning.
It is to be understood that the present application is not limited to the particular arrangements and instrumentality described above and shown in the attached drawings. A detailed description of known methods is omitted herein for the sake of brevity. In the above embodiments, several specific steps are described and shown as examples. However, the method processes of the present application are not limited to the specific steps described and illustrated, and those skilled in the art can make various changes, modifications, and additions or change the order between the steps after comprehending the spirit of the present application.
The functional blocks shown in the above-described structural block diagrams may be implemented as hardware, software, firmware, or a combination thereof. When implemented in hardware, it may be, for example, an electronic Circuit, an Application Specific Integrated Circuit (ASIC), suitable firmware, plug-in, function card, or the like. When implemented in software, the elements of the present application are the programs or code segments used to perform the required tasks. The program or code segments may be stored in a machine-readable medium or transmitted by a data signal carried in a carrier wave over a transmission medium or a communication link. A "machine-readable medium" may include any medium that can store or transfer information. Examples of a machine-readable medium include electronic circuits, semiconductor memory devices, ROM, flash memory, Erasable ROM (EROM), floppy disks, CD-ROMs, optical disks, hard disks, fiber optic media, Radio Frequency (RF) links, and so forth. The code segments may be downloaded via computer networks such as the internet, intranet, etc.
It should also be noted that the exemplary embodiments mentioned in this application describe some methods or systems based on a series of steps or devices. However, the present application is not limited to the order of the above-described steps, that is, the steps may be performed in the order mentioned in the embodiments, may be performed in an order different from the order in the embodiments, or may be performed simultaneously.
Aspects of the present application are described above 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 block of the flowchart illustrations and/or block diagrams, and combinations of blocks in the flowchart illustrations 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, 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, enable the implementation of the functions/acts specified in the flowchart and/or block diagram block or blocks. Such a processor may be, but is not limited to, a general purpose processor, a special purpose processor, an application specific processor, or a field programmable logic circuit. It will also be understood that each block of the block diagrams and/or flowchart illustration, and combinations of blocks in the block diagrams and/or flowchart illustration, can be implemented by special purpose hardware for performing the specified functions or acts, or combinations of special purpose hardware and computer instructions.
As described above, only the specific embodiments of the present application are provided, and it can be clearly understood by those skilled in the art that, for convenience and brevity of description, the specific working processes of the system, the module and the unit described above may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again. It should be understood that the scope of the present application is not limited thereto, and any person skilled in the art can easily conceive various equivalent modifications or substitutions within the technical scope of the present application, and these modifications or substitutions should be covered within the scope of the present application.

Claims (11)

1. A terminal positioning method is applied to a terminal, and is characterized by comprising the following steps:
acquiring first positioning auxiliary information of a base station corresponding to a first cell in which the terminal is located;
acquiring second positioning auxiliary information of a base station corresponding to at least one second cell, wherein the at least one second cell is a cell associated with the terminal except the first cell;
and positioning the terminal according to the first positioning auxiliary information and at least one piece of second positioning auxiliary information.
2. The method of claim 1, wherein the target parameter value of the second cell is greater than a preset threshold.
3. The method of claim 1, wherein the obtaining second positioning assistance information of a base station corresponding to at least one second cell comprises:
sending the identification of the at least one second cell to a positioning server; the identifier of the second cell is used for a positioning server to obtain the second positioning auxiliary information of the base station corresponding to at least one second cell;
receiving the at least one second positioning assistance information returned by the positioning server.
4. The method according to claim 1, wherein the positioning the terminal according to the first positioning assistance information and the at least one second positioning assistance information specifically includes:
calculating a field average value of the first positioning auxiliary information and at least one second positioning auxiliary information to obtain first determined positioning auxiliary information;
and positioning the terminal according to the first determined positioning auxiliary information.
5. The method according to claim 1, wherein the positioning the terminal according to the first positioning assistance information and the at least one second positioning assistance information specifically includes:
acquiring first position information of the terminal, the first cell and the second cell;
respectively calculating a first distance between the terminal and a base station corresponding to the first cell and a second distance between the terminal and a base station corresponding to the second cell according to first position information of the terminal, the first cell and the second cell;
when the first distance is smaller than or equal to the second distance, positioning the terminal according to the first positioning auxiliary information;
and when the first distance is greater than the second distance, positioning the terminal according to the second positioning auxiliary information.
6. The method of claim 1, wherein the target parameter value comprises one or more of a reference signal received power value, a reference signal received quality value, a received signal strength indicator value, an A3 event in a mobile communication protocol, an A4 event of the second cell.
7. A terminal positioning method is applied to a positioning server and is characterized by comprising the following steps:
acquiring third positioning auxiliary information of a base station corresponding to a first cell in which a terminal is located;
receiving an identifier of at least one second cell sent by the terminal, wherein the at least one second cell is a cell associated with the terminal except the first cell;
acquiring fourth auxiliary positioning information of a base station corresponding to at least one second cell according to the identifier of the at least one second cell;
and positioning the terminal according to the third positioning auxiliary information and at least one fourth positioning auxiliary information.
8. A terminal positioning apparatus, characterized in that the apparatus comprises:
the first acquisition module is used for acquiring first positioning auxiliary information of a base station corresponding to a first cell in which a terminal is located;
a second obtaining module, configured to obtain second positioning assistance information of a base station corresponding to at least one second cell, where the at least one second cell is a cell associated with the terminal except for the first cell;
and the first positioning module is used for positioning the terminal according to the first positioning auxiliary information and at least one piece of second positioning auxiliary information.
9. A terminal positioning apparatus, characterized in that the apparatus comprises:
a third obtaining module, configured to obtain third positioning assistance information of a base station corresponding to a first cell in which a terminal is located;
a receiving module, configured to receive an identifier of at least one second cell sent by the terminal, where the at least one second cell is a cell associated with the terminal except for the first cell;
a fourth obtaining module, configured to obtain, according to the identifier of the at least one second cell, fourth auxiliary positioning information of a base station corresponding to the at least one second cell;
and the second positioning module is used for positioning the terminal according to the third positioning auxiliary information and at least one fourth positioning auxiliary information.
10. A terminal positioning device, characterized in that the terminal positioning device comprises: a processor, and a memory storing computer program instructions; the processor reads and executes the computer program instructions to implement the method of terminal positioning according to any of claims 1-7.
11. A computer storage medium, characterized in that it has stored thereon computer program instructions which, when executed by a processor, implement a method of terminal positioning according to any one of claims 1-7.
CN202011272438.7A 2020-11-13 2020-11-13 Terminal positioning method, device, equipment and computer storage medium Pending CN113079456A (en)

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CN106465326A (en) * 2014-12-31 2017-02-22 华为技术有限公司 Positioning method and mobile terminal
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Application publication date: 20210706