WO2018161255A1 - 一种室内基站定位方法及装置 - Google Patents

一种室内基站定位方法及装置 Download PDF

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Publication number
WO2018161255A1
WO2018161255A1 PCT/CN2017/075887 CN2017075887W WO2018161255A1 WO 2018161255 A1 WO2018161255 A1 WO 2018161255A1 CN 2017075887 W CN2017075887 W CN 2017075887W WO 2018161255 A1 WO2018161255 A1 WO 2018161255A1
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WIPO (PCT)
Prior art keywords
base station
position information
arrival time
pieces
positioning parameter
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PCT/CN2017/075887
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English (en)
French (fr)
Inventor
朱伟
张伟
陈项
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华为技术有限公司
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Priority to PCT/CN2017/075887 priority Critical patent/WO2018161255A1/zh
Publication of WO2018161255A1 publication Critical patent/WO2018161255A1/zh

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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01SRADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S5/00Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations

Definitions

  • the present application relates to the field of communications technologies, and in particular, to an indoor base station positioning method and apparatus.
  • the embodiment of the present application provides an indoor base station positioning method and device, which are used to accurately locate an indoor base station.
  • the present application provides an indoor base station positioning method, including: acquiring, by a server, N pieces of position information corresponding to a terminal at N different positions, and performing positioning parameter measurement results corresponding to the N pieces of position information respectively, and the server according to the N pieces of position information And the positioning parameter measurement result corresponding to the N pieces of position information respectively, determining the position information of the base station to be located.
  • the measurement result of the positioning parameter corresponding to the i-th position information is used to indicate the positional relationship between the terminal and the base station to be located when the terminal is in the i-th position, where i is an arbitrary integer of 1 to N, and N is a positive integer.
  • the server determines the location information of the base station to be located according to the N location information of the terminal at the N locations and the positioning parameter measurement result corresponding to the N location information respectively, that is, according to the terminal that is relatively easy to obtain.
  • the location information and the corresponding positioning parameter measurement result determine the location information of the base station in the unknown location, and the method is simple and convenient, which greatly facilitates maintenance personnel to perform maintenance and inspection on the base station.
  • the measurement result of the positioning parameter corresponding to the i-th position information includes: a first arrival time and a second arrival time; wherein the first arrival time is the first to be located when the terminal is located at the ith position The arrival time of the uplink signal sent by the base station, where the second arrival time is the arrival time of the uplink signal sent to the second to-be-located base station when the terminal is located at the ith position.
  • the measurement result of the positioning parameter corresponding to the N pieces of position information is obtained by the server: the server receives the first arrival time corresponding to the N pieces of position information sent by the first to-be-located base station, and the second to-be-located base station sends the The second arrival time corresponding to each of the N pieces of position information.
  • the first to-be-located base station and the second to-be-located base station are any two of the indoor to-be-located base stations.
  • the first to-be-targeted base station and the second to-be-targeted base station of the time and the second arrival time respectively transmit the first arrival time and the second arrival time to the server.
  • the positioning parameter measurement result corresponding to the i-th position information includes: a first arrival time and a second arrival time; wherein, the first arrival time is that the first to-be-located base station is located at the ith position of the terminal The time of arrival of the downlink signal is sent to the terminal, and the second time of arrival is the arrival time of the second base station to send the downlink signal to the terminal when the terminal is located at the ith position.
  • the server obtains the positioning parameter measurement results corresponding to the N pieces of position information respectively.
  • the following method obtains: the server receives the first arrival time and the second arrival time corresponding to the N pieces of position information sent by the terminal respectively.
  • the first arrival time and the second arrival time are measured by the terminal according to the downlink signal sent by the first to-be-located base station and the downlink signal sent by the second to-be-located base station, the first arrival time needs to be measured.
  • the terminal at the second arrival time sends the first arrival time and the second arrival time to the server.
  • the server determines the location information of the base station to be located according to the N location information and the positioning parameter measurement result corresponding to the N location information respectively, and the following method may be adopted: the server according to the N location information, and the N
  • the positioning parameter corresponding to the position information respectively obtains a system of equations consisting of N equations, N ⁇ 5.
  • the server solves a system of equations composed of N equations, and obtains location information of the first to-be-located base station and location information of the second to-be-located base station.
  • the server obtains the i-th equation for the measurement result of the positioning parameter corresponding to the i-th position information and the i-th position information:
  • the i-th position information is (Xi, Yi), the i-th position information is any one of N pieces of position information, and the position information of the first to-be-located base station is (X1, Y1), and the second to-be-positioned base station position information (X2, Y2), the first base station to be located mounting height H 1, the installation height of the second base station is positioned to be H 2, a first arrival time information corresponding to the i-th position is ToA i1, the first The second arrival time corresponding to the i position information is ToA i2 , and the timing error between the first to-be-located base station and the second to-be-located base station is TAE 12 and the speed of light is c.
  • the arrival time corresponding to multiple base stations can be obtained at each location, and each two base stations are a group, and the simultaneous equations solve the position coordinates of the base station until the position coordinates of all the base stations are completed.
  • the calculation therefore, provides a simple mathematical method for accurately obtaining the location information of the base station to be located.
  • the measurement result of the positioning parameter corresponding to the i-th position information includes: an angle of arrival corresponding to the first base station to be located; wherein the arrival angle of the first base station to be located is when the terminal is located at the ith position The angle of arrival of the uplink signal is sent to the first to-be-located base station.
  • the server obtains the positioning parameter measurement result corresponding to the N pieces of position information respectively, and the method may be as follows: the server receives an arrival angle corresponding to the first to-be-targeted base station corresponding to the N pieces of position information sent by the base station.
  • the server determines the location information of the base station to be located according to the N location information and the positioning parameter measurement result corresponding to the N location information respectively, and the following method may be adopted: the server according to the N location information, and the N The location information corresponding to the positioning parameter measurement result is obtained by Equations consisting of equations, N ⁇ 3, the server solves by The equations formed by the equations obtain the position information of the first base station to be located.
  • the i-th position information is (X i , Y i ), the i-th position information is any one of N pieces of position information, and the i-th position information is (X i+1 , Y i+1 )
  • the location information of the base station to be located is (X 1 , Y 1 ), the measurement result of the positioning parameter corresponding to the i-th position information is ⁇ i , and the measurement result of the positioning parameter corresponding to the i+1th position information is ⁇ i+1 .
  • the other base stations are sequentially selected to determine the location coordinates, respectively, until the location coordinate calculation of all the base stations is completed. Therefore, the embodiment of the present application provides a simple mathematical method, which can accurately obtain the location information of the base station to be located.
  • the present application provides an indoor base station positioning apparatus for performing the method of any of the above aspects or the first aspect of the first aspect.
  • the apparatus comprises means for performing the method of any of the above-described first aspect or any of the possible aspects of the first aspect.
  • the application provides a server including a communication interface, a processor, and a memory.
  • the communication interface, the processor and the memory can be connected by a bus system.
  • the memory is for storing a program, instruction or code for executing a program, instruction or code in the memory to perform the method of any of the first aspect or the first aspect of the first aspect.
  • the application provides a communication system, comprising: a terminal, at least one base station to be located, and a server according to the third aspect.
  • the present application provides a computer readable storage medium or computer program product for storing a computer program for performing the method of any of the above first aspect or any of the possible implementations of the first aspect. instruction.
  • FIG. 1 is a schematic diagram of a network architecture according to an embodiment of the present application.
  • FIG. 2 is a flowchart of an overview of an indoor base station positioning method according to an embodiment of the present application
  • FIG. 3 is a schematic diagram of a scenario in which a terminal sends an uplink signal to a base station a and a base station b in an embodiment of the present application;
  • FIG. 4 is a schematic diagram of a difference TDoA between a ToAa and a ToAb corresponding to a base station a and a base station b in the embodiment of the present application;
  • FIG. 5 is a schematic diagram of a difference TDoA' between a ToAa and a ToAb corresponding to a base station a and a base station b in the embodiment of the present application;
  • FIG. 6 is a schematic diagram of a triangle in which the terminal is in the ith position, the terminal is in the (i+1)th position, and the location of the base station is in the embodiment of the present application;
  • FIG. 7 is a schematic structural diagram of an indoor base station positioning apparatus according to an embodiment of the present application.
  • FIG. 8 is a schematic structural diagram of a server in an embodiment of the present application.
  • the base station in the embodiment of the present application may be a base station in an independent cell form, or may be a radio frequency head end of a common cell base station.
  • the wireless signal sent by the terminal propagates at the speed of light.
  • the base station measures the time when the wireless signal propagates from the terminal to the base station, and multiplies the measured propagation time by the speed of light c to obtain the distance between the terminal and the base station.
  • this is only a theoretical algorithm. In fact, since the base station cannot know the time at which the terminal transmits the wireless signal, and the base station needs to introduce an additional delay when processing the wireless signal, the above theoretical algorithm cannot be directly used to directly calculate the terminal and The distance between base stations.
  • the network architecture diagram of the embodiment of the present application is as shown in FIG. 1 , and includes a terminal, a server, and a base station, where a base station or multiple base stations can be installed in the room, and the server is an independent device capable of communicating with the terminal and the base station, or is a terminal. Or a functional module on another measuring device.
  • Figure 1 includes two base stations, base station a and base station b, respectively, and base station a and base station b can communicate with the terminal (final The communication connection between the terminal and the base station a is not shown, and communication with the server is possible, and the server can communicate with the terminal.
  • the embodiment of the present application provides an indoor base station positioning method, which is used to accurately locate an indoor base station.
  • the method includes:
  • Step 200 The server acquires N pieces of position information corresponding to the N different positions of the terminal, and a positioning parameter measurement result corresponding to each of the N pieces of position information.
  • the measurement result of the positioning parameter corresponding to the i-th position information is used to indicate the positional relationship between the terminal and the base station to be located when the terminal is in the i-th position, where i is an arbitrary integer of 1 to N, and N is a positive integer.
  • Step 210 The server determines location information of the base station to be located according to the N location information and the positioning parameter measurement result corresponding to the N location information respectively.
  • the measurement result of the positioning parameter corresponding to the i-th position information includes: a first arrival time and a second arrival time;
  • the first arrival time is an arrival time of the uplink signal sent by the first to-be-located base station when the terminal is located at the ith position
  • the second arrival time is an arrival of the uplink signal sent by the second to-be-located base station when the terminal is located at the ith position. time.
  • the first to-be-located base station and the second to-be-located base station are any two of the indoor to-be-located base stations. It should be understood that the time of arrival of the base station measurement terminal to transmit the uplink signal is called “time of arrival (ToA)”, and the first arrival time and the second arrival time can be obtained by the method provided in the prior art, and the base station measures. The specific method of arrival time will not be described again.
  • the server performs step 200 the measurement result of the positioning parameter corresponding to the N pieces of position information is obtained, specifically:
  • the server receives a first arrival time corresponding to the N pieces of position information sent by the first to-be-located base station, and a second arrival time corresponding to the N pieces of position information sent by the second to-be-located base station.
  • the measurement result of the positioning parameter corresponding to the i-th position information includes: a first arrival time and a second arrival time;
  • the first arrival time is an arrival time of the first to-be-located base station to send a downlink signal to the terminal when the terminal is located at the ith position
  • the second arrival time is that the second to-be-targeted base station sends the terminal to the terminal when the terminal is located at the ith position.
  • the arrival time of the terminal to measure the downlink signal sent by the base station can be obtained by the method provided in the prior art, and the specific process is not described again.
  • the server performs step 200 the measurement result of the positioning parameter corresponding to the N pieces of position information is obtained, specifically:
  • the server receives the first arrival time and the second arrival time respectively corresponding to the N pieces of position information sent by the terminal.
  • the first arrival time and the second arrival time are respectively measured according to the uplink signal received by the first to-be-located base station and the uplink signal received by the second to-be-located base station, the first arrival time needs to be measured separately. And the first to-be-targeted base station and the second to-be-targeted base station that are the second arrival time respectively send the first arrival time and the second arrival time to the server.
  • the first arrival time and the second arrival time are measured by the terminal according to the downlink signal sent by the first to-be-located base station and the downlink signal sent by the second to-be-located base station, the first arrival time and the second arrival time need to be measured.
  • the terminal sends the first arrival time and the second arrival time to the server.
  • the server determines the location information of the base station to be located according to the N location information and the positioning parameter measurement results corresponding to the N location information respectively, and adopts the following method:
  • the server obtains the result of the positioning parameter corresponding to the N pieces of position information and the N pieces of position information respectively, obtained by N Equations consisting of equations, N ⁇ 5;
  • the server solves a system of equations composed of N equations, and obtains location information of the first to-be-located base station and location information of the second to-be-located base station;
  • the server obtains the i-th equation for the measurement result of the positioning parameter corresponding to the i-th position information and the i-th position information:
  • the i-th position information is (X i , Y i ), and the i-th position information is any one of N pieces of position information, and the position information of the first to-be-located base station is (X 1 , Y 1 ),
  • the location information of the second to-be-located base station is (X 2 , Y 2 ), the installation height of the first to-be-located base station is H 1 , the installation height of the second to-be-located base station is H 2 , and the first arrival of the i-th position information corresponds to
  • the time is ToA i1
  • the second arrival time corresponding to the i-th position information is ToA i2
  • the timing error between the first to-be-located base station and the second to-be-located base station is TAE 12
  • the speed of light is c.
  • the first arrival time and the second arrival time respectively correspond to the arrival time of the uplink signal sent by the terminal to the first to-be-located base station and the second to-be-located base station, and specifically how to locate the two to-be-located base stations.
  • the base station a measures the arrival time of the uplink signal sent by the terminal to the base station a at a certain position, and the base station b measures the terminal at the same position.
  • the arrival time of the uplink signal is transmitted to the base station b, so that the difference TDoA of the two arrival times can be calculated, wherein the TDoA corresponds to the difference between the distances of the two base stations to the terminal.
  • the terminal does not move at a fixed position in the room, and sends an uplink signal to the base station a and the base station b respectively.
  • the base station a measures the uplink signal sent by the terminal to the base station a, and the base station b transmits the uplink signal to the base station b.
  • the uplink signal is measured, and the base station a and the base station b measure two arrival times, ToAa and ToAb, respectively, and calculate the difference TDoA between the ToAa and the ToAb. Therefore, every two base stations can obtain one TDoA.
  • TDoA does not accurately correspond to the difference between the distances of two base stations to the terminal, and there is still a certain error.
  • the specific reason is that the time synchronization between the base stations is not completely accurate, and the additional delays introduced by the devices of different base stations when processing the uplink signals sent by the terminals are different, so that the ToAs obtained by measuring the signals simultaneously reaching the antenna ports of the base station are also different.
  • TAE Time of Error
  • TAE In order to overcome the positioning error caused by TAE between base stations, TAE needs to be used as an unknown quantity, and the terminal is used in multiple The measurement results of the position are jointly obtained by solving the equations.
  • the position coordinates of the base station a and the base station b are respectively denoted as (X a , Y a ), (X b , Y b ), and the timing error between the base station a and the base station b is denoted as TAE ab .
  • the installation heights of the base station a and the base station b are H a and H b , respectively, and the speed of light is c.
  • the terminal is used to collect the location information of the n locations in the vicinity of the two base stations.
  • an APP can be installed on the terminal, and the operator operates the current location of the terminal on the display interface of the terminal, and reports it to the server, and the server also receives
  • the base station a transmits ToAa for measuring the uplink signal to the base station a at the current location, and the ToAb for the uplink signal measured by the receiving base station b for the terminal to the base station b at the current location, and the above information is included in the following table 1 in:
  • the server receives n location information reported by the terminal, and two arrival times corresponding to each location information reported by the base station a and the base station b respectively.
  • the server uses the measurement data shown in Table 1 to obtain the following equations:
  • Location coordinates (X a, Y a) the need to solve a set of equations for the unknowns a base station, the clock deviation between the position coordinates (X b, Y b) two base stations and base station b TAE ab, a total of five Unknown.
  • the number of equations is n, and as long as n is greater than 5, the equations can be solved. If the base station and a base station installation height b, are H a and H b is unknown, may be installed and a height of base station b solved by increasing the number of equations.
  • the number of position information measured by the terminal is much larger than 5, and there are also ToAa and ToAb corresponding to the base station a and the base station b, respectively.
  • the solution of the system of equations may use a least squares method (a known mathematical algorithm). Order function
  • the base station a and the base station b can be accurately found according to the obtained location coordinates of the base station a and the base station b, so that the maintenance personnel can perform maintenance and inspection on the base station.
  • the arrival time corresponding to multiple base stations can be obtained at each location, and each two base stations are a group, and the simultaneous equations solve the position coordinates of the base station until the positions of all the base stations are completed. Coordinate calculation.
  • the measurement result of the positioning parameter corresponding to the i-th position information includes: an angle of arrival corresponding to the first base station to be located; wherein the arrival angle of the first base station to be located is when the terminal is located at the ith position The angle of arrival of the uplink signal is sent to the first to-be-located base station.
  • the angle of arrival of the uplink signal sent by the base station measurement terminal can be obtained by the method provided in the prior art, and the specific process is not described again.
  • the server performs step 200 the measurement result of the positioning parameter corresponding to the N pieces of position information is obtained, specifically:
  • the server receives an arrival angle corresponding to the first to-be-located base station corresponding to the N pieces of location information sent by the base station.
  • the server determines the location information of the base station to be located according to the N location information and the positioning parameter corresponding to the N location information respectively, and adopts the following method:
  • the server obtains the measurement result of the positioning parameter corresponding to the N pieces of position information and the N pieces of position information respectively. Equations consisting of equations, N ⁇ 3.
  • any two pieces of position information and the positioning parameter measurement results corresponding to the two pieces of position information respectively constitute an equation.
  • the i-th position information is (X i , Y i ), and the i-th position information is any one of N pieces of position information, and the position information of the first to-be-located base station is (X 1 , Y 1 ),
  • the measurement result of the positioning parameter corresponding to the i position information is ⁇ i
  • the measurement result of the positioning parameter corresponding to the i+1 position information is ⁇ i+1 .
  • the following takes the measurement result of the positioning parameter as the example of the arrival angle of the base station to be located, and specifically describes how to locate the positioning base station.
  • the terminal uses the terminal to collect the location information of the n locations.
  • an APP can be installed on the terminal.
  • the operator operates the current location of the terminal on the display interface of the terminal, and reports the location to the server.
  • the server also receives the base station a.
  • ⁇ a measured by the terminal transmitting the uplink signal at the current position the position coordinates of the terminal at each position and the arrival angle measured by the corresponding base station a are as shown in Table 2 below:
  • the server receives n location information reported by the terminal, and an arrival angle corresponding to each location information reported by the base station.
  • the server uses the data shown in Table 2 to join the following equations:
  • the unknown quantity is (X a , Y a ), and when n is greater than or equal to 3, the equation system can be solved. Since there is an error in the angle of arrival measurement, in order to improve the accuracy, the number of terminal position information to be measured is much larger than three, and there is also a ⁇ a corresponding to the base station a .
  • the solution of the system of equations may use a least squares method (a known mathematical algorithm). Order function
  • the other base stations are sequentially selected to determine the location coordinates, The position coordinate calculation of all base stations is completed.
  • the present application further provides an indoor base station locating device, which can be used to perform the method embodiment corresponding to FIG. 2 above. Therefore, the implementation manner of the indoor base station locating device provided by the embodiment of the present application can be referred to the method. The embodiments are not repeated here.
  • an indoor base station positioning apparatus 700 includes:
  • the transceiver unit 710 is configured to acquire N pieces of position information corresponding to the N different positions of the terminal, and the positioning parameter measurement results corresponding to the N pieces of position information respectively, wherein the positioning parameter measurement result corresponding to the i-th position information is used for Indicates a positional relationship between the terminal and the base station to be located when the terminal is in the i-th position, where i is an arbitrary integer of 1 to N, and N is a positive integer;
  • the processing unit 720 is configured to determine location information of the to-be-located base station according to the N pieces of position information and the positioning parameter measurement result corresponding to the N pieces of position information respectively.
  • the positioning parameter measurement result corresponding to the i-th position information includes: a first arrival time and a second arrival time;
  • the first arrival time is an arrival time of the uplink signal sent by the terminal to the first to-be-located base station when the terminal is located at the ith position
  • the second arrival time is that the terminal is located at the ith position. And sending an arrival time of the uplink signal to the second to-be-located base station;
  • the transceiver unit 710 is specifically configured to:
  • the positioning parameter measurement result corresponding to the i-th position information includes: a first arrival time and a second arrival time;
  • the first arrival time is an arrival time of the first to-be-targeted base station to send a downlink signal to the terminal when the terminal is located at the ith position
  • the second arrival time is the second to-be-positioned
  • the base station sends an arrival time of the downlink signal to the terminal when the terminal is located at the ith position
  • the transceiver unit 710 is specifically configured to:
  • the processing unit 720 is specifically used. to:
  • the server obtains an i-th equation for the measurement result of the positioning parameter corresponding to the i-th position information and the i-th position information:
  • the i-th location information is (X i , Y i ), the i-th location information is any one of the N location information, and the location information of the first to-be-located base station is ( X 1 , Y 1 ), the location information of the second to-be-located base station is (X 2 , Y 2 ), the installation height of the first to-be-located base station is H 1 , and the installation height of the second to-be-located base station For H 2 , the first arrival time corresponding to the i-th position information is ToA i1 , and the second arrival time corresponding to the i-th position information is ToA i2 , the first to-be-targeted base station and the second The timing error between the base stations to be located is TAE 12 and the speed of light is c.
  • the measurement result of the positioning parameter corresponding to the ith position information includes: an angle of arrival corresponding to the first to-be-located base station; wherein an angle of arrival corresponding to the first to-be-located base station is the terminal Sending an arrival angle of an uplink signal to the first to-be-located base station when the i-th location is located;
  • the transceiver unit 710 is specifically configured to:
  • the processing unit 720 is specifically used. to:
  • the positioning parameter measurement result corresponding to the i-th position information and the ith position information, and the (i+1)th position information and the positioning parameter corresponding to the (i+1)th position information are obtained as follows:
  • the i-th position information is (X i , Y i ), the i-th position information is any one of the N pieces of position information, and the i-th position information is (X i+ 1 , Y i+1 ), the location information of the first to-be-located base station is (X 1 , Y 1 ), and the positioning parameter corresponding to the i-th position information is ⁇ i , and the i+1th position
  • the measurement result of the positioning parameter corresponding to the information is ⁇ i+1 .
  • the present application further provides a server, which can be used to perform the method embodiment corresponding to the foregoing FIG. 2, and therefore, the implementation manner of the terminal provided by the embodiment of the present application can refer to the implementation manner of the method, where it is repeated. No longer.
  • the present application provides a server 800, including: a communication interface 810, a processor 820, and a memory 830.
  • the communication interface 810, the processor 820, and the memory 830 can be connected by a bus system.
  • the memory 830 is configured to store a program, an instruction, or a code
  • the processor 820 is configured to execute a program, an instruction, or a code in the memory 830 to perform: obtaining, by the communication interface 810, N locations corresponding to the terminal at N different locations.
  • the information and the positioning parameter measurement result corresponding to the N pieces of position information respectively determine the position information of the base station to be located according to the N position information and the positioning parameter measurement result corresponding to the N pieces of position information respectively.
  • the measurement result of the positioning parameter corresponding to the i-th position information is used to indicate the positional relationship between the terminal and the base station to be located when the terminal is in the i-th position, where i is an arbitrary integer of 1 to N, and N is a positive integer.
  • the processor 820 may be a central processing unit (CPU), and may be other general-purpose processors, digital signal processors (DSPs), application specific integrated circuits (ASICs), Field Programmable Gate Array (FPGA) or other programmable logic device, discrete gate or transistor logic device, discrete hardware components, etc.
  • the general purpose processor may be a microprocessor or the processor or any conventional processor or the like.
  • the memory 830 can include read only memory and random access memory and provides instructions and data to the processor 820. A portion of the memory 830 may also include a non-volatile random access memory. For example, the memory 830 can also store information of the device type.
  • the bus system may include a power bus, a control bus, and a status signal bus in addition to the data bus.
  • each step in the method of the embodiment corresponding to FIG. 2 may be completed by an integrated logic circuit of hardware in the processor 820 or an instruction in a form of software.
  • the steps of the message processing method disclosed in the embodiment of the present application may be directly implemented by the hardware processor, or may be performed by using a combination of hardware and software modules in the processor.
  • the software module can be located in a conventional storage medium such as random access memory, flash memory, read only memory, programmable read only memory or electrically erasable programmable memory, registers, and the like.
  • the storage medium is located in the memory 830.
  • the processor 820 reads the information in the memory 830 and combines the hardware to complete the steps in the method of the embodiment corresponding to FIG. 2. To avoid repetition, it will not be described in detail here.
  • the function of the transceiver unit 710 in FIG. 7 can be implemented by the communication interface 810 of FIG. 8, and the function of the processing unit 720 can be implemented by the processor 820 of FIG.
  • the server determines the location information of the base station to be located according to the N location information of the terminal at the N locations and the positioning parameter measurement result corresponding to the N location information respectively, that is, according to the terminal that is relatively easy to obtain.
  • the location information and the corresponding positioning parameter measurement result determine the location information of the base station in the unknown location, and the method is simple and convenient, which greatly facilitates maintenance personnel to perform maintenance and inspection on the base station.
  • embodiments of the present application can be provided as a method, system, or computer program product. Therefore, the embodiments of the present application may take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware. Moreover, embodiments of the present application can 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, etc.) including computer usable program code.
  • computer-usable storage media including but not limited to disk storage, CD-ROM, optical storage, etc.
  • Embodiments of the present application are described with reference to flowchart illustrations and/or block diagrams of methods, devices (systems), and computer program products according to embodiments of the present application. It will be understood that each flow and/or block of the flowchart illustrations and/or FIG.
  • These computer program instructions can be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing device to produce a machine for the execution of instructions for execution by a processor of a computer or other programmable data processing device.
  • the computer program instructions can also be stored in a computer readable memory that can direct a computer or other programmable data processing device to operate in a particular manner, such that the instructions stored in the computer readable memory produce an article of manufacture comprising the instruction device.
  • the apparatus implements the functions specified in one or more blocks of a flow or a flow and/or block diagram of the flowchart.
  • These computer program instructions can also be loaded onto a computer or other programmable data processing device such that a series of operational steps are performed on a computer or other programmable device to produce computer-implemented processing for execution on a computer or other programmable device.
  • the instructions provide steps for implementing the functions specified in one or more of the flow or in a block or blocks of a flow diagram.

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Abstract

一种室内基站定位方法及装置,用以实现准确定位室内基站。该方法包括:服务器获取终端在N个不同位置对应的N个位置信息,以及N个位置信息分别对应的定位参数测量结果,服务器根据N个位置信息,以及N个位置信息分别对应的定位参数测量结果,确定待定位基站的位置信息。其中,第i个位置信息对应的定位参数测量结果用于指示终端在第i个位置时与待定位基站的位置关系,i为取遍1~N的任意整数,N为正整数。因此,采用本申请提供的方法,简便易行,极大方便了维护人员对基站进行维护和检查。

Description

一种室内基站定位方法及装置 技术领域
本申请涉及通信技术领域,尤其涉及一种室内基站定位方法及装置。
背景技术
随着运营商对室内网络的深度覆盖,以及伴随着室内容量的需求的提升,越来越多的小基站被应用于室内。一般地,业主从安装美观考虑,要求小基站安装在天花板吊顶内,安装完成之后,维护人员无法看到这些小基站,导致后续要对这些小基站维护的时候,维护人员无法找到这些小基站。
发明内容
本申请实施例提供一种室内基站定位方法及装置,用以实现准确定位室内基站。
第一方面,本申请提供一种室内基站定位方法,包括:服务器获取终端在N个不同位置对应的N个位置信息,以及N个位置信息分别对应的定位参数测量结果,服务器根据N个位置信息,以及N个位置信息分别对应的定位参数测量结果,确定待定位基站的位置信息。其中,第i个位置信息对应的定位参数测量结果用于指示终端在第i个位置时与待定位基站的位置关系,i为取遍1~N的任意整数,N为正整数。因此,采用本申请提供的方法,服务器根据终端在N个位置的N个位置信息,以及N个位置信息分别对应的定位参数测量结果,确定待定位基站的位置信息,即根据较容易获得的终端位置信息和对应的定位参数测量结果,确定未知位置的基站的位置信息,该方法简便易行,极大方便了维护人员对基站进行维护和检查。
在一种可能的设计中,第i个位置信息对应的定位参数测量结果包括:第一到达时间和第二到达时间;其中,第一到达时间是终端位于第i个位置时向第一待定位基站发送上行信号的到达时间,第二到达时间是终端位于第i个位置时向第二待定位基站发送上行信号的到达时间。此时,服务器获取N个位置信息分别对应的定位参数测量结果通过以下方法获得:服务器接收第一待定位基站发送的N个位置信息分别对应的第一到达时间,以及第二待定位基站发送的N个位置信息分别对应的第二到达时间。其中,第一待定位基站与第二待定位基站为室内待定位基站中的任意两个基站。由上可知,由于上述第一到达时间和第二到达时间分别是根据第一待定位基站接收的上行信号和第二待定位基站接收的上行信号测得的,因此需要由分别测得第一到达时间和第二到达时间的第一待定位基站和第二待定位基站将第一到达时间和第二到达时间分别发送给服务器。通过利用现有技术中测量到达时间的方法,不必增加基站的处理复杂度即可获得用于定位待定位基站所需的定位参数测量结果。
在一种可能的设计中,第i个位置信息对应的定位参数测量结果包括:第一到达时间和第二到达时间;其中,第一到达时间是第一待定位基站在终端位于第i个位置时向终端发送下行信号的到达时间,第二到达时间是第二待定位基站在终端位于第i个位置时向终端发送下行信号的到达时间。此时,服务器获取N个位置信息分别对应的定位参数测量结果通过 以下方法获得:服务器接收终端发送的N个位置信息分别对应的第一到达时间和第二到达时间。由上可知,由于上述第一到达时间和第二到达时间是终端根据第一待定位基站发送的下行信号和第二待定位基站发送的下行信号测得的,因此需要测得第一到达时间和第二到达时间的终端发送第一到达时间和第二到达时间给服务器。通过利用现有技术中测量到达时间的方法,不必增加终端的处理复杂度即可获得用于定位待定位基站所需的定位参数测量结果。
在一种可能的设计中,服务器根据N个位置信息,以及N个位置信息分别对应的定位参数测量结果,确定待定位基站的位置信息可以采用如下方法:服务器根据N个位置信息,以及N个位置信息分别对应的定位参数测量结果,获得由N个方程构成的方程组,N≥5。服务器求解由N个方程构成的方程组,获得第一待定位基站的位置信息和第二待定位基站的位置信息。其中,服务器针对第i个位置信息和第i位置信息对应的定位参数测量结果获得第i个方程:
Figure PCTCN2017075887-appb-000001
其中,第i个位置信息为(Xi,Yi),第i个位置信息为N个位置信息中的任一信息,第一待定位基站的位置信息为(X1,Y1),第二待定位基站的位置信息为(X2,Y2),第一待定位基站的安装高度为H1,第二待定位基站的安装高度为H2,第i个位置信息对应的第一到达时间为ToAi1,第i个位置信息对应的第二到达时间为ToAi2,第一待定位基站与第二待定位基站之间的定时误差为TAE12,光速为c。因此,采用本申请实施例提供的方法,可以在每个位置获得多个基站对应的到达时间,每两个基站为一组,联立方程组求解基站的位置坐标,直至完成全部基站的位置坐标计算,因此,本申请实施例提供了简单的数学方法,能够精准地获得待定位基站的位置信息。
在一种可能的设计中,第i个位置信息对应的定位参数测量结果包括:第一待定位基站对应的到达角度;其中,第一待定位基站对应的到达角度是终端位于第i个位置时向第一待定位基站发送上行信号的到达角度。此时,服务器获取N个位置信息分别对应的定位参数测量结果可采用如下方法:服务器接收基站发送的N个位置信息分别对应的第一待定位基站对应的到达角度。通过利用现有技术中测量到达角度的方法,不必增加基站的处理复杂度即可获得用于定位待定位基站所需的定位参数测量结果。
在一种可能的设计中,服务器根据N个位置信息,以及N个位置信息分别对应的定位参数测量结果,确定待定位基站的位置信息可以采用如下方法:服务器根据N个位置信息,以及N个位置信息分别对应的定位参数测量结果,获得由
Figure PCTCN2017075887-appb-000002
个方程构成的方程组,N≥3,服务器求解由
Figure PCTCN2017075887-appb-000003
个方程构成的方程组,获得第一待定位基站的位置信息。其中,服务器针对第i个位置信息和第i位置信息对应的定位参数测量结果,以及第(i+1)个位置信息和第(i+1)位置信息对应的定位参数测量结果,获得的方程为:
Figure PCTCN2017075887-appb-000004
其中,第i个位置信息为(Xi,Yi),第i个位置信息为N个位置信息中的任一信息,第i个位置信息为(Xi+1,Yi+1)第一待定位基站的位置信息为(X1,Y1),第i位置信息对应 的定位参数测量结果为βi,第i+1位置信息对应的定位参数测量结果为βi+1。采用本申请实施例提供的方法,依次选择其他基站分别确定出位置坐标,直至完成全部基站的位置坐标计算。因此,本申请实施例提供了简单的数学方法,能够精准地获得待定位基站的位置信息。
第二方面,本申请提供一种室内基站定位装置,用于执行上述第一方面或第一方面的任意可能的设计的方法。具体地,该装置包括用于执行上述第一方面或第一方面的任意可能的设计的方法的单元。
第三方面,本申请提供一种服务器,包括通信接口、处理器和存储器。其中,通信接口、处理器以及所述存储器之间可以通过总线系统相连。该存储器用于存储程序、指令或代码,所述处理器用于执行所述存储器中的程序、指令或代码,以完成上述第一方面或第一方面的任意可能的实现方式中的方法。
第四方面,本申请提供了一种通信系统,包括:终端,至少一个待定位基站和如第三方面所述的服务器。
第五方面,本申请提供了一种计算机可读存储介质或者计算机程序产品,用于存储计算机程序,该计算机程序用于执行上述第一方面或第一方面的任意可能的实现方式中的方法的指令。
附图说明
图1为本申请实施例的网络架构示意图;
图2为本申请实施例中室内基站定位方法的概述流程图;
图3为本申请实施例中终端分别向基站a和基站b发送上行信号的场景示意图;
图4为本申请实施例中基站a和基站b分别对应的ToAa和ToAb的差值TDoA的示意图;
图5为本申请实施例中基站a和基站b分别对应的ToAa和ToAb的差值TDoA’的示意图;
图6为本申请实施例中终端处于第i个位置、终端处于第(i+1)个位置,以及基站所在位置构成的三角形示意图;
图7为本申请实施例中室内基站定位装置的结构示意图;
图8为本申请实施例中服务器的结构示意图。
具体实施方式
下面结合附图,对本申请的实施例进行描述。
本申请实施例中的基站可以是独立小区形态的基站,也可以是共小区基站的射频头端。
终端发出的无线信号,以光速传播,基站通过测量无线信号从终端传播到基站的时间,将测得的传播时间乘以光速c,就能得到终端和基站之间的距离。但这仅仅是理论上的算法,事实上,由于基站无法获知终端发送无线信号的时刻,并且基站在处理无线信号时需要引入额外的时延,所以无法直接使用上述理论上的算法直接计算终端和基站之间的距离。
本申请实施例的网络架构图如图1所述,包括终端,服务器和基站,其中,室内可安装一个基站或多个基站,服务器为能与终端和基站进行通信的独立设备,或者,为终端或其他测量设备上的一个功能模块。
图1中包括两个基站,分别为基站a和基站b,基站a和基站b能够与终端进行通信(终 端与基站a的通信连接未画出),且能够与服务器进行通信,服务器能够与终端进行通信。
本申请实施例提供一种室内基站定位方法,用以实现准确定位室内基站,参阅图2所示,该方法包括:
步骤200:服务器获取终端在N个不同位置对应的N个位置信息,以及N个位置信息分别对应的定位参数测量结果。
其中,第i个位置信息对应的定位参数测量结果用于指示终端在第i个位置时与待定位基站的位置关系,i为取遍1~N的任意整数,N为正整数。
步骤210:服务器根据N个位置信息,以及N个位置信息分别对应的定位参数测量结果,确定待定位基站的位置信息。
在一种可能的设计中,第i个位置信息对应的定位参数测量结果包括:第一到达时间和第二到达时间;
其中,第一到达时间是终端位于第i个位置时向第一待定位基站发送上行信号的到达时间,第二到达时间是终端位于第i个位置时向第二待定位基站发送上行信号的到达时间。
其中,第一待定位基站与第二待定位基站为室内待定位基站中的任意两个基站。应理解的是,基站测量终端发送上行信号的到达时间称为“到达时间(time of arrival,ToA)”,第一到达时间和第二到达时间可以通过现有技术中提供的方法获得,基站测量到达时间的具体方法不再赘述。
此时,服务器在执行步骤200时,获取N个位置信息分别对应的定位参数测量结果,具体为:
服务器接收第一待定位基站发送的N个位置信息分别对应的第一到达时间,以及第二待定位基站发送的N个位置信息分别对应的第二到达时间。
在一种可能的设计中,第i个位置信息对应的定位参数测量结果包括:第一到达时间和第二到达时间;
其中,第一到达时间是第一待定位基站在终端位于第i个位置时向终端发送下行信号的到达时间,第二到达时间是第二待定位基站在终端位于第i个位置时向终端发送下行信号的到达时间。
应理解的是,终端测量基站发送下行信号的到达时间可以通过现有技术中提供的方法获得,具体过程不再赘述。
此时,服务器在执行步骤200时,获取N个位置信息分别对应的定位参数测量结果,具体为:
服务器接收终端发送的N个位置信息分别对应的第一到达时间和第二到达时间。
由上可知,当上述第一到达时间和第二到达时间分别是根据第一待定位基站接收的上行信号和第二待定位基站接收的上行信号测得时,需要由分别测得第一到达时间和第二到达时间的第一待定位基站和第二待定位基站将第一到达时间和第二到达时间分别发送给服务器。当上述第一到达时间和第二到达时间是终端根据第一待定位基站发送的下行信号和第二待定位基站发送的下行信号测得时,因此需要测得第一到达时间和第二到达时间的终端发送第一到达时间和第二到达时间给服务器。
进一步地,针对上述两种可能的设计,服务器根据N个位置信息,以及N个位置信息分别对应的定位参数测量结果,确定待定位基站的位置信息时,采用如下方法:
服务器根据N个位置信息,以及N个位置信息分别对应的定位参数测量结果,获得由N 个方程构成的方程组,N≥5;
服务器求解由N个方程构成的方程组,获得第一待定位基站的位置信息和第二待定位基站的位置信息;
其中,服务器针对第i个位置信息和第i位置信息对应的定位参数测量结果获得第i个方程:
Figure PCTCN2017075887-appb-000005
其中,第i个位置信息为(Xi,Yi),第i个位置信息为N个位置信息中的任一信息,第一待定位基站的位置信息为(X1,Y1),第二待定位基站的位置信息为(X2,Y2),第一待定位基站的安装高度为H1,第二待定位基站的安装高度为H2,第i个位置信息对应的第一到达时间为ToAi1,第i个位置信息对应的第二到达时间为ToAi2,第一待定位基站与第二待定位基站之间的定时误差为TAE12,光速为c。
其中,
Figure PCTCN2017075887-appb-000006
表示终端位于第i个位置时与第一待定位基站之间的距离,
Figure PCTCN2017075887-appb-000007
表示终端位于第i个位置时与第二待定位基站之间的距离。
Figure PCTCN2017075887-appb-000008
表示终端位于第i个位置时第一待定位基站与第二待定位基站分别到终端的距离的差值,c×(ToAi1-ToAi2+TAE12),也表示终端位于第i个位置时与第一待定位基站与第二待定位基站分别到终端的距离的差值。
下面以第一到达时间和第二到达时间分别对应终端向第一待定位基站和第二待定位基站发送上行信号的到达时间为例,具体说明如何对这两个待定位基站进行定位。
由于终端发送上行信号的时刻不可知,所以无法直接通过上行信号到达时间计算终端和基站之间的距离。在存在两个待定位基站的场景中,例如基站a和基站b,如图3所示,基站a测量终端在某个位置上向基站a发送上行信号的到达时间,基站b测量终端在相同位置上向基站b发送上行信号的到达时间,因此可以计算两个到达时间的差值TDoA,其中,TDoA是与两个基站到终端的距离的差值对应的。
如图4所示,终端在室内一个固定位置上不动,向基站a和基站b分别发送上行信号,基站a对终端向基站a发送的上行信号进行测量,基站b对终端向基站b发送的上行信号进行测量,基站a和基站b测量得到两个到达时间分别为ToAa和ToAb,计算ToAa和ToAb的差值TDoA,因此,每两个基站可以得到一个TDoA。
在实际网络中,TDoA并非准确地与两个基站到终端的距离的差值对应,还存在一定的误差。具体原因在于,基站之间不是完全精确的时间同步,并且不同基站的器件在处理终端发送的上行信号时引入的额外时延不同,导致同时到达基站天线口的信号测量得到的ToA也是不同的,这个差异构成定时误差(Time of error,TAE)。如图5所示,由于基站之间存在定时误差TAE,造成针对每两个基站测量得到的TDoA’是由实际TDoA和定时误差TAE组成,其中,TDoA’=TDoA+TAE,TAE是未知量,因此需要考虑TAE,否则将会造成定位结果出现误差。
为了克服基站间TAE造成的定位误差,需要把TAE作为一个未知量,使用终端在多个 位置的测量结果联立获得方程组进行求解。
假设基站a和基站b的位置坐标分别记为(Xa,Ya)、(Xb,Yb),基站a和基站b之间的定时误差记为TAEab。基站a和基站b的安装高度分别为Ha和Hb,光速为c。
在这两个基站附近使用终端采集n个位置的位置信息,例如,终端上可以安装一个APP,操作人员在该终端的显示界面上操作标记该终端的当前位置,并上报给服务器,服务器还接收基站a针对该终端在当前位置上向基站a发送上行信号测量得到的ToAa,以及接收基站b针对该终端在当前位置上向基站b发送上行信号测量得到的ToAb,将上述信息计入下表1中:
表1
终端位置 终端到基站a的ToA 终端到基站b的ToA
(X1,Y1) ToA1a ToA1b
(X2,Y2) ToA2a ToA2b
(X3,Y3) ToA3a ToA3b
…… …… ……
(Xn,Yn) ToAna ToAnb
如表1可知,服务器接收终端上报的n个位置信息,以及基站a和基站b分别上报的每个位置信息对应的两个到达时间。
服务器使用如表1所示的测量数据,可以联立得到下面的方程组:
Figure PCTCN2017075887-appb-000009
这个方程组中需要求解的未知量为基站a的位置坐标(Xa,Ya)、基站b的位置坐标(Xb,Yb)和两个基站之间的时钟偏差TAEab,总共5个未知量。方程的个数为n个,只要n大于5,就可以使方程组有解。若基站a和基站b的安装高度分别为Ha和Hb为未知,还可通过增加方程的个数进行求解基站a和基站b的安装高度。
进一步地,由于ToA测量存在误差,为了使基站的位置坐标计算更加准确,终端测量的位置信息数量要远远大于5,同时还要有基站a和基站b分别对应的ToAa和ToAb。
具体的,方程组的解法可使用最小二乘法(已知的数学算法)。令函数
Figure PCTCN2017075887-appb-000010
构建最小二乘函数
Figure PCTCN2017075887-appb-000011
当函数Oab取值最小时,获得的(Xa,Ya)(Xb,Yb)的取值就是基站a和基站b的坐标位置。
进一步地,根据获得的基站a和基站b的位置坐标就可准确找到基站a和基站b,方便维护人员对基站进行维护和检查。
进一步地,采用本申请实施例提供的方法,可以在每个位置获得多个基站对应的到达时间,每两个基站为一组,联立方程组求解基站的位置坐标,直至完成全部基站的位置坐标计算。
在一种可能的设计中,第i个位置信息对应的定位参数测量结果包括:第一待定位基站对应的到达角度;其中,第一待定位基站对应的到达角度是终端位于第i个位置时向第一待定位基站发送上行信号的到达角度。
应理解的时,基站测量终端向其发送上行信号的到达角度可以通过现有技术中提供的方法获得,具体过程不再赘述。
此时,服务器在执行步骤200时,获取N个位置信息分别对应的定位参数测量结果,具体为:
服务器接收基站发送的N个位置信息分别对应的第一待定位基站对应的到达角度。
针对上述可能的设计,服务器根据N个位置信息,以及N个位置信息分别对应的定位参数测量结果,确定待定位基站的位置信息时,采用如下方法:
服务器根据N个位置信息,以及N个位置信息分别对应的定位参数测量结果,获得由
Figure PCTCN2017075887-appb-000012
个方程构成的方程组,N≥3。
即任意两个位置信息以及这两个位置信息分别对应的定位参数测量结果构成一个方程。
服务器求解由
Figure PCTCN2017075887-appb-000013
个方程构成的方程组,获得第一待定位基站的位置信息。
其中,服务器针对第i个位置信息和第i位置信息对应的定位参数测量结果,以及第(i+1)个位置信息和第(i+1)位置信息对应的定位参数测量结果,获得的方程为:
Figure PCTCN2017075887-appb-000014
其中,第i个位置信息为(Xi,Yi),第i个位置信息为N个位置信息中的任一信息,第一待定位基站的位置信息为(X1,Y1),第i位置信息对应的定位参数测量结果为βi,第i+1位置信息对应的定位参数测量结果为βi+1
上述方程根据余弦定理获得,如图6所示,以终端处于第i个位置、终端处于第(i+1)个位置,以及基站a所在位置,这三个位置为三个顶点,构成一个三角形,如图6中虚线所示的三角形。
下面以定位参数测量结果为待定位基站对应的到达角度为例,具体说明如何对待定位基站进行定位。
在基站a附近使用终端采集n个位置的位置信息,例如,终端上可以安装一个APP,操作人员在该终端的显示界面上操作标记该终端的当前位置,并上报给服务器,服务器还接收基站a针对该终端在当前位置上发送上行信号测量得到的βa,终端在各个位置的位置坐标和对应基站a测量得到的到达角度如下表2所示:
表2
终端位置 终端到基站a的达到角度
(X1,Y1) β1a
(X2,Y2) β2a
(X3,Y3) β3a
…… ……
(Xn,Yn) βna
如表2可知,服务器接收终端上报的n个位置信息,以及基站上报的每个位置信息对应的到达角度。
服务器使用如表2所示的数据,可以联立得到下面的方程组:
Figure PCTCN2017075887-appb-000015
其中未知量为(Xa,Ya),当n大于等于3,就能够使方程组有解。由于到达角度测量存在误差,所以为了提高精度,需要测量的终端位置信息的数量远远大于3个,同时还要有基站a对应的βa
具体的,方程组的解法可使用最小二乘法(已知的数学算法)。令函数
Figure PCTCN2017075887-appb-000016
构建最小二乘函数
Figure PCTCN2017075887-appb-000017
当函数Oa取值最小的时候,(Xa,Ya)的取值就是基站a的位置坐标。
进一步地,采用本申请实施例提供的方法,依次选择其他基站分别确定出位置坐标, 直至完成全部基站的位置坐标计算。
基于同一构思,本申请还提供了一种室内基站定位装置,该装置可以用于执行上述图2对应的方法实施例,因此本申请实施例提供的室内基站定位装置的实施方式可以参见该方法的实施方式,重复之处不再赘述。
参阅图7所示,一种室内基站定位装置700,包括:
收发单元710,用于获取终端在N个不同位置对应的N个位置信息,以及所述N个位置信息分别对应的定位参数测量结果,其中,第i个位置信息对应的定位参数测量结果用于指示所述终端在第i个位置时与待定位基站的位置关系,i为取遍1~N的任意整数,N为正整数;
处理单元720,用于根据所述N个位置信息,以及所述N个位置信息分别对应的定位参数测量结果,确定所述待定位基站的位置信息。
在一种可能的设计中,所述第i个位置信息对应的定位参数测量结果包括:第一到达时间和第二到达时间;
其中,所述第一到达时间是所述终端位于所述第i个位置时向所述第一待定位基站发送上行信号的到达时间,所述第二到达时间是所述终端位于第i个位置时向所述第二待定位基站发送上行信号的到达时间;
获取所述N个位置信息分别对应的定位参数测量结果时,所述收发单元710,具体用于:
接收所述第一待定位基站发送的所述N个位置信息分别对应的第一到达时间,以及所述第二待定位基站发送的所述N个位置信息分别对应的第二到达时间。
在一种可能的设计中,所述第i个位置信息对应的定位参数测量结果包括:第一到达时间和第二到达时间;
其中,所述第一到达时间是所述第一待定位基站在所述终端位于第i个位置时向所述终端发送下行信号的到达时间,所述第二到达时间是所述第二待定位基站在所述终端位于第i个位置时向所述终端发送下行信号的到达时间;
获取所述N个位置信息分别对应的定位参数测量结果时,所述收发单元710,具体用于:
接收所述终端发送的所述N个位置信息分别对应的第一到达时间和第二到达时间。
在一种可能的设计中,根据所述N个位置信息,以及所述N个位置信息分别对应的定位参数测量结果,确定所述待定位基站的位置信息时,所述处理单元720,具体用于:
根据所述N个位置信息,以及所述N个位置信息分别对应的定位参数测量结果,获得由N个方程构成的方程组,N≥5;
求解所述由N个方程构成的方程组,获得所述第一待定位基站的位置信息和所述第二待定位基站的位置信息;
其中,所述服务器针对第i个位置信息和第i位置信息对应的定位参数测量结果获得第i个方程:
Figure PCTCN2017075887-appb-000018
其中,所述第i个位置信息为(Xi,Yi),所述第i个位置信息为所述N个位置信息中的任一信息,所述第一待定位基站的位置信息为(X1,Y1),所述第二待定位基站的位置信息为(X2,Y2),所述第一待定位基站的安装高度为H1,所述第二待定位基站的安装高度为H2,所述第i个位置信息对应的第一到达时间为ToAi1,所述第i个位置信息对应的第二到 达时间为ToAi2,所述第一待定位基站与所述第二待定位基站之间的定时误差为TAE12,光速为c。
在一种可能的设计中,所述第i个位置信息对应的定位参数测量结果包括:第一待定位基站对应的到达角度;其中,所述第一待定位基站对应的到达角度是所述终端位于所述第i个位置时向所述第一待定位基站发送上行信号的到达角度;
获取所述N个位置信息分别对应的定位参数测量结果时,所述收发单元710,具体用于:
接收所述基站发送的所述N个位置信息分别对应的第一待定位基站对应的到达角度。
在一种可能的设计中,根据所述N个位置信息,以及所述N个位置信息分别对应的定位参数测量结果,确定所述待定位基站的位置信息时,所述处理单元720,具体用于:
根据所述N个位置信息,以及所述N个位置信息分别对应的定位参数测量结果,获得由
Figure PCTCN2017075887-appb-000019
个方程构成的方程组,N≥3;
求解所述由
Figure PCTCN2017075887-appb-000020
个方程构成的方程组,获得所述第一待定位基站的位置信息;
其中,所述服务器针对第i个位置信息和所述第i位置信息对应的定位参数测量结果,以及第(i+1)个位置信息和所述第(i+1)位置信息对应的定位参数测量结果,获得的方程为:
Figure PCTCN2017075887-appb-000021
其中,所述第i个位置信息为(Xi,Yi),所述第i个位置信息为所述N个位置信息中的任一信息,所述第i个位置信息为(Xi+1,Yi+1),所述第一待定位基站的位置信息为(X1,Y1),所述第i位置信息对应的定位参数测量结果为βi,所述第i+1位置信息对应的定位参数测量结果为βi+1
基于同一构思,本申请还提供了一种服务器,该服务器可以用于执行上述图2对应的方法实施例,因此本申请实施例提供的终端的实施方式可以参见该方法的实施方式,重复之处不再赘述。
参阅图8所示,本申请提供一种服务器800,包括:通信接口810、处理器820和存储器830。其中,通信接口810、处理器820以及存储器830之间可以通过总线系统相连。该存储器830用于存储程序、指令或代码,处理器820用于执行存储器830中的程序、指令或代码,以具体执行:通过所述通信接口810获取终端在N个不同位置对应的N个位置信息,以及N个位置信息分别对应的定位参数测量结果,根据N个位置信息,以及N个位置信息分别对应的定位参数测量结果,确定待定位基站的位置信息。其中,第i个位置信息对应的定位参数测量结果用于指示终端在第i个位置时与待定位基站的位置关系,i为取遍1~N的任意整数,N为正整数。
应理解,在本申请实施例中,该处理器820可以是中央处理单元(Central Processing Unit,CPU),还可以是其他通用处理器、数字信号处理器(DSP)、专用集成电路(ASIC)、现场可编程门阵列(FPGA)或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件等。通用处理器可以是微处理器或者该处理器也可以是任何常规的处理器等。
该存储器830可以包括只读存储器和随机存取存储器,并向处理器820提供指令和数据。存储器830的一部分还可以包括非易失性随机存取存储器。例如,存储器830还可以存储设备类型的信息。
该总线系统除包括数据总线之外,还可以包括电源总线、控制总线和状态信号总线等。
在实现过程中,图2对应的实施例的方法中的各步骤可以通过处理器820中的硬件的集成逻辑电路或者软件形式的指令完成。结合本申请实施例所公开的报文处理方法的步骤可以直接体现为硬件处理器执行完成,或者用处理器中的硬件及软件模块组合执行完成。软件模块可以位于随机存储器,闪存、只读存储器,可编程只读存储器或者电可擦写可编程存储器、寄存器等本领域成熟的存储介质中。该存储介质位于存储器830中,处理器820读取存储器830中的信息,结合其硬件完成图2对应的实施例的方法中的各步骤。为避免重复,这里不再详细描述。
需要说明的是,一个具体的实施方式中,图7中的收发单元710的功能可以用图8的通信接口810实现,处理单元720的功能可以用图8的处理器820实现。
因此,采用本申请提供的方法,服务器根据终端在N个位置的N个位置信息,以及N个位置信息分别对应的定位参数测量结果,确定待定位基站的位置信息,即根据较容易获得的终端位置信息和对应的定位参数测量结果,确定未知位置的基站的位置信息,该方法简便易行,极大方便了维护人员对基站进行维护和检查。
本领域内的技术人员应明白,本申请实施例可提供为方法、系统、或计算机程序产品。因此,本申请实施例可采用完全硬件实施例、完全软件实施例、或结合软件和硬件方面的实施例的形式。而且,本申请实施例可采用在一个或多个其中包含有计算机可用程序代码的计算机可用存储介质(包括但不限于磁盘存储器、CD-ROM、光学存储器等)上实施的计算机程序产品的形式。
本申请实施例是参照根据本申请实施例的方法、设备(系统)、和计算机程序产品的流程图和/或方框图来描述的。应理解可由计算机程序指令实现流程图和/或方框图中的每一流程和/或方框、以及流程图和/或方框图中的流程和/或方框的结合。可提供这些计算机程序指令到通用计算机、专用计算机、嵌入式处理机或其他可编程数据处理设备的处理器以产生一个机器,使得通过计算机或其他可编程数据处理设备的处理器执行的指令产生用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的装置。
这些计算机程序指令也可存储在能引导计算机或其他可编程数据处理设备以特定方式工作的计算机可读存储器中,使得存储在该计算机可读存储器中的指令产生包括指令装置的制造品,该指令装置实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能。
这些计算机程序指令也可装载到计算机或其他可编程数据处理设备上,使得在计算机或其他可编程设备上执行一系列操作步骤以产生计算机实现的处理,从而在计算机或其他可编程设备上执行的指令提供用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的步骤。
显然,本领域的技术人员可以对本申请实施例进行各种改动和变型而不脱离本申请的精神和范围。这样,倘若本申请实施例的这些修改和变型属于本申请权利要求及其等同技术的范围之内,则本申请也意图包含这些改动和变型在内。

Claims (12)

  1. 一种室内基站定位方法,其特征在于,包括:
    服务器获取终端在N个不同位置对应的N个位置信息,以及所述N个位置信息分别对应的定位参数测量结果,其中,第i个位置信息对应的定位参数测量结果用于指示所述终端在第i个位置时与待定位基站的位置关系,i为取遍1~N的任意整数,N为正整数;
    所述服务器根据所述N个位置信息,以及所述N个位置信息分别对应的定位参数测量结果,确定所述待定位基站的位置信息。
  2. 如权利要求1所述的方法,其特征在于,所述第i个位置信息对应的定位参数测量结果包括:第一到达时间和第二到达时间;
    其中,所述第一到达时间是所述终端位于所述第i个位置时向所述第一待定位基站发送上行信号的到达时间,所述第二到达时间是所述终端位于第i个位置时向所述第二待定位基站发送上行信号的到达时间;
    服务器获取所述N个位置信息分别对应的定位参数测量结果,包括:
    所述服务器接收所述第一待定位基站发送的所述N个位置信息分别对应的第一到达时间,以及所述第二待定位基站发送的所述N个位置信息分别对应的第二到达时间。
  3. 如权利要求1所述的方法,其特征在于,所述第i个位置信息对应的定位参数测量结果包括:第一到达时间和第二到达时间;
    其中,所述第一到达时间是所述第一待定位基站在所述终端位于第i个位置时向所述终端发送下行信号的到达时间,所述第二到达时间是所述第二待定位基站在所述终端位于第i个位置时向所述终端发送下行信号的到达时间;
    服务器获取所述N个位置信息分别对应的定位参数测量结果,包括:
    所述服务器接收所述终端发送的所述N个位置信息分别对应的第一到达时间和第二到达时间。
  4. 如权利要求2或3所述的方法,其特征在于,所述服务器根据所述N个位置信息,以及所述N个位置信息分别对应的定位参数测量结果,确定所述待定位基站的位置信息,包括:
    所述服务器根据所述N个位置信息,以及所述N个位置信息分别对应的定位参数测量结果,获得由N个方程构成的方程组,N≥5;
    所述服务器求解所述由N个方程构成的方程组,获得所述第一待定位基站的位置信息和所述第二待定位基站的位置信息;
    其中,所述服务器针对第i个位置信息和第i位置信息对应的定位参数测量结果获得第i个方程:
    Figure PCTCN2017075887-appb-100001
    其中,所述第i个位置信息为(Xi,Yi),所述第i个位置信息为所述N个位置信息中的任一信息,所述第一待定位基站的位置信息为(X1,Y1),所述第二待定位基站的位置信息为(X2,Y2),所述第一待定位基站的安装高度为H1,所述第二待定位基站的安装高度为H2,所述第i个位置信息对应的第一到达时间为ToAi1,所述第i个位置信息对应的第二到 达时间为ToAi2,所述第一待定位基站与所述第二待定位基站之间的定时误差为TAE12,光速为c。
  5. 如权利要求1所述的方法,其特征在于,所述第i个位置信息对应的定位参数测量结果包括:第一待定位基站对应的到达角度;其中,所述第一待定位基站对应的到达角度是所述终端位于所述第i个位置时向所述第一待定位基站发送上行信号的到达角度;
    服务器获取所述N个位置信息分别对应的定位参数测量结果,包括:
    所述服务器接收所述基站发送的所述N个位置信息分别对应的第一待定位基站对应的到达角度。
  6. 如权利要求5所述的方法,其特征在于,所述服务器根据所述N个位置信息,以及所述N个位置信息分别对应的定位参数测量结果,确定所述待定位基站的位置信息,包括:
    所述服务器根据所述N个位置信息,以及所述N个位置信息分别对应的定位参数测量结果,获得由
    Figure PCTCN2017075887-appb-100002
    个方程构成的方程组,N≥3;
    所述服务器求解所述由
    Figure PCTCN2017075887-appb-100003
    个方程构成的方程组,获得所述第一待定位基站的位置信息;
    其中,所述服务器针对第i个位置信息和所述第i位置信息对应的定位参数测量结果,以及第(i+1)个位置信息和所述第(i+1)位置信息对应的定位参数测量结果,获得的方程为:
    Figure PCTCN2017075887-appb-100004
    其中,所述第i个位置信息为(Xi,Yi),所述第i个位置信息为所述N个位置信息中的任一信息,所述第i个位置信息为(Xi+1,Yi+1)所述第一待定位基站的位置信息为(X1,Y1),所述第i位置信息对应的定位参数测量结果为βi,所述第i+1位置信息对应的定位参数测量结果为βi+1
  7. 一种室内基站定位装置,其特征在于,包括:
    收发单元,用于获取终端在N个不同位置对应的N个位置信息,以及所述N个位置信息分别对应的定位参数测量结果,其中,第i个位置信息对应的定位参数测量结果用于指示所述终端在第i个位置时与待定位基站的位置关系,i为取遍1~N的任意整数,N为正整数;
    处理单元,用于根据所述N个位置信息,以及所述N个位置信息分别对应的定位参数测量结果,确定所述待定位基站的位置信息。
  8. 如权利要求7所述的装置,其特征在于,所述第i个位置信息对应的定位参数测量结果包括:第一到达时间和第二到达时间;
    其中,所述第一到达时间是所述终端位于所述第i个位置时向所述第一待定位基站发送上行信号的到达时间,所述第二到达时间是所述终端位于第i个位置时向所述第二待定位基站发送上行信号的到达时间;
    获取所述N个位置信息分别对应的定位参数测量结果时,所述收发单元具体用于:
    接收所述第一待定位基站发送的所述N个位置信息分别对应的第一到达时间,以及所述第二待定位基站发送的所述N个位置信息分别对应的第二到达时间。
  9. 如权利要求7所述的装置,其特征在于,所述第i个位置信息对应的定位参数测量结果包括:第一到达时间和第二到达时间;
    其中,所述第一到达时间是所述第一待定位基站在所述终端位于第i个位置时向所述终端发送下行信号的到达时间,所述第二到达时间是所述第二待定位基站在所述终端位于第i个位置时向所述终端发送下行信号的到达时间;
    获取所述N个位置信息分别对应的定位参数测量结果时,所述收发单元具体用于:
    接收所述终端发送的所述N个位置信息分别对应的第一到达时间和第二到达时间。
  10. 如权利要求8或9所述的装置,其特征在于,根据所述N个位置信息,以及所述N个位置信息分别对应的定位参数测量结果,确定所述待定位基站的位置信息时,所述处理单元具体用于:
    根据所述N个位置信息,以及所述N个位置信息分别对应的定位参数测量结果,获得由N个方程构成的方程组,N≥5;
    求解所述由N个方程构成的方程组,获得所述第一待定位基站的位置信息和所述第二待定位基站的位置信息;
    其中,所述服务器针对第i个位置信息和第i位置信息对应的定位参数测量结果获得第i个方程:
    Figure PCTCN2017075887-appb-100005
    其中,所述第i个位置信息为(Xi,Yi),所述第i个位置信息为所述N个位置信息中的任一信息,所述第一待定位基站的位置信息为(X1,Y1),所述第二待定位基站的位置信息为(X2,Y2),所述第一待定位基站的安装高度为H1,所述第二待定位基站的安装高度为H2,所述第i个位置信息对应的第一到达时间为ToAi1,所述第i个位置信息对应的第二到达时间为ToAi2,所述第一待定位基站与所述第二待定位基站之间的定时误差为TAE12,光速为c。
  11. 如权利要求7所述的装置,其特征在于,所述第i个位置信息对应的定位参数测量结果包括:第一待定位基站对应的到达角度;其中,所述第一待定位基站对应的到达角度是所述终端位于所述第i个位置时向所述第一待定位基站发送上行信号的到达角度;
    获取所述N个位置信息分别对应的定位参数测量结果时,所述收发单元具体用于:
    接收所述基站发送的所述N个位置信息分别对应的第一待定位基站对应的到达角度。
  12. 如权利要求11所述的装置,其特征在于,根据所述N个位置信息,以及所述N个位置信息分别对应的定位参数测量结果,确定所述待定位基站的位置信息时,所述处理单元具体用于:
    根据所述N个位置信息,以及所述N个位置信息分别对应的定位参数测量结果,获得由
    Figure PCTCN2017075887-appb-100006
    个方程构成的方程组,N≥3;
    求解所述由
    Figure PCTCN2017075887-appb-100007
    个方程构成的方程组,获得所述第一待定位基站的位置信息;
    其中,所述服务器针对第i个位置信息和所述第i位置信息对应的定位参数测量结果,以及第(i+1)个位置信息和所述第(i+1)位置信息对应的定位参数测量结果,获得的方程为:
    Figure PCTCN2017075887-appb-100008
    其中,所述第i个位置信息为(Xi,Yi),所述第i个位置信息为所述N个位置信息中的任一信息,所述第i个位置信息为(Xi+1,Yi+1),所述第一待定位基站的位置信息为(X1,Y1),所述第i位置信息对应的定位参数测量结果为βi,所述第i+1位置信息对应的定位参数测量结果为βi+1
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CN103857035A (zh) * 2012-12-06 2014-06-11 中国电信股份有限公司 三点立体基站定位方法与装置
CN103997757A (zh) * 2014-05-13 2014-08-20 电信科学技术研究院 伪基站定位方法、设备及信息上报方法、设备
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