WO2016150084A1

WO2016150084A1 - Method and apparatus for computing distance from mobile station to cell

Info

Publication number: WO2016150084A1
Application number: PCT/CN2015/087557
Authority: WO
Inventors: 谭耀斌; 马先才; 胡鹏
Original assignee: 中兴通讯股份有限公司
Priority date: 2015-03-24
Filing date: 2015-08-19
Publication date: 2016-09-29
Also published as: CN106162862A

Abstract

Disclosed are a method and apparatus for computing a distance from a mobile station to a cell, wherein the method comprises: separately obtaining a distance from a mobile station to preset cells and a preset variable value; fitting a preset link formula according to the distance from the mobile station to the preset cells and the preset variable value, and obtaining parameter values in the link formula; and obtaining a variable value from the mobile station to a cell to be detected, and computing and obtaining, according to the variable value of the cell to be detected and the parameter values in the link formula, the distance from the mobile station to the cell to be detected.

Description

Method and device for calculating mobile station to cell distance

Technical field

The present invention relates to the field of communications, and in particular, to a method and apparatus for calculating a distance from a mobile station to a cell.

Background technique

With the development of wireless networks, wireless positioning technology is becoming more and more widely used, and the requirements are getting higher and higher. Whether it is the daily operation and maintenance of the telecom operator or the value-added service after the location of the individual user, the accuracy of measuring the distance from the mobile station to the cell is very high.

Currently, one way is to estimate the distance from the mobile station to the cell using the timing advance TA. For example, using TOA (TimeofArrival), TDOA (TimeDifference of Arrival) and other algorithm positioning, the accuracy of the distance value represented by the timing advance affects the positioning accuracy. However, the distance represented by the unit time of some positioning systems is too large. For example, the timing advance of TA is GSM, and the measurement accuracy is about 554m. One unit of deviation leads to a long deviation of positioning, which is not suitable for direct use. Moreover, the antenna feeder system and the mobile phone processing all occupy some time advancement, and the time advance amount obtained by most mobile stations represents a distance value greater than the distance value actually transmitted by the mobile station to the base station cell. Therefore, the accuracy of the distance from the mobile station to the cell estimated by the advance amount TA is not high.

Another way is to estimate the distance from the mobile station to the cell using the measured signal strength. However, since the signal strength is an unstable measurement item, the distance accuracy of the mobile station to the cell obtained by using the signal strength estimation is not too high.

Summary of the invention

The invention provides a method and a device for calculating a distance from a mobile station to a cell, and the main purpose is to solve the technical problem of how to accurately obtain the distance from the mobile station to the cell.

To achieve the above objective, the present invention provides a method for calculating a mobile station to cell distance, the method comprising:

Obtaining the distance from the mobile station to the preset cell and the preset variable value respectively;

And according to the distance from the mobile station to the preset cell and the preset variable value, fitting a preset link formula to obtain a parameter value in the link formula;

Obtaining a variable value of the mobile station to the cell to be tested, and calculating a distance of the mobile station to the cell to be tested according to a variable value of the cell to be tested and a parameter value in the link formula.

Preferably, the variable value includes at least a timing advance of the mobile station to the respective cells and/or a signal strength of the mobile stations that the respective cells can actually receive.

Preferably, the step of fitting the preset link formula according to the distance from the mobile station to the preset cell and the preset variable value, and acquiring the parameter value in the link formula, includes:

Obtaining a distance from the mobile station to the preset cell and the moving in a case of acquiring a distance from the mobile station to a preset cell and a time advance of the mobile station to the preset set cell a time advancement amount of the cell to the preset setting, fitting a preset link formula, obtaining a parameter value in the link formula, and/or;

And obtaining, according to the distance from the mobile station to the preset cell, and the foregoing, in a case of acquiring a distance from the mobile station to a preset cell and a signal strength of the mobile station that the preset cell can actually receive The set cell can actually receive the signal strength of the mobile station, fit a preset link formula, obtain a parameter value in the link formula, and/or;

Obtaining a distance of the mobile station to a preset cell when the time advance amount is the same in the multiple sets of data, and a signal strength that the preset cell can actually receive the mobile station, when acquiring a plurality of sets of data; Obtaining a parameter value in the link formula according to the obtained distance from the mobile station to a preset cell and the signal strength of the pre-set cell actually receiving the mobile station; acquiring the multiple sets of data respectively The chain corresponding to each time advance a parameter value in the road formula; wherein the plurality of sets of data are distances, time advancements, and actual signal strengths of the mobile station that the mobile station can respectively receive to the plurality of preset cells, and the plurality of preset cells .

Preferably, the preset link formula is a linear fitting formula or a quadratic fitting curve formula or a cubic fitting curve formula or a polyline fitting formula.

Preferably, the acquiring the variable value of the mobile station to the cell to be tested, calculating the mobile station to the cell to be tested according to the variable value of the cell to be tested and the parameter value in the link formula Distances include:

Obtaining, in the case that the link formula is based on a distance from the mobile station to the preset cell and a time advance of the mobile station to the preset set cell, acquiring the cell to be tested a time advance amount, calculating a distance of the mobile station to the to-be-tested cell according to a timing advance of the to-be-tested cell and a parameter value in the link formula, and/or;

In the case that the link formula is based on the distance from the mobile station to the preset cell and the signal strength of the preset cell that can actually receive the mobile station, according to the cell to be tested Receiving a signal strength of the mobile station and a parameter value in the link formula, calculating a distance of the mobile station to the cell to be tested, and/or;

The link formula is that the time advance according to the distance from the mobile station to the preset cell, the time advance of the mobile station to the preset set cell, and the preset cell may actually receive the In the case that the signal strength of the mobile station is fitted, the corresponding link formula is selected according to the timing advance of the mobile station to the cell to be tested, and the signal strength and the selected chain of the mobile station are received according to the cell to be tested. The parameter value in the road formula calculates the distance of the mobile station to the cell to be tested.

In addition, in order to achieve the above object, the present invention further provides an apparatus for calculating a distance from a mobile station to a cell, the apparatus comprising:

a first acquiring unit, configured to separately acquire a distance from the mobile station to a preset cell, and pre- The variable value set first;

a second acquiring unit, configured to: fit a preset link formula according to a distance of the mobile station to a preset cell and the preset variable value, and acquire a parameter value in the link formula;

a calculating unit, configured to acquire a variable value of the mobile station to the cell to be tested, and calculate, according to the variable value of the cell to be tested and the parameter value in the link formula, the mobile station to the cell to be tested distance.

Preferably, the second obtaining unit is configured to:

Obtaining a distance of the mobile station to a preset cell when the time advance amount is the same in the multiple sets of data, and a signal strength that the preset cell can actually receive the mobile station, when acquiring a plurality of sets of data; Obtaining a parameter value in the link formula according to the obtained distance from the mobile station to a preset cell and the signal strength of the pre-set cell actually receiving the mobile station; acquiring the multiple sets of data respectively a parameter value in the link formula corresponding to each time advance amount; wherein the plurality of sets of data are distances, timing advances, and the plurality of presets of the mobile station to the plurality of preset cells respectively The cell can actually receive the mobile The signal strength of the station.

Preferably, the calculation unit is configured to:

In the embodiment of the present invention, by separately acquiring the distance from the mobile station to the preset cell and the preset variable value, the preset chain is matched according to the distance from the mobile station to the preset cell and the preset variable value. a path formula, obtaining a parameter value in the link formula, acquiring a variable value of the mobile station to the cell to be tested, and calculating the value according to the variable value of the cell to be tested and the parameter value in the link formula The distance from the mobile station to the cell to be tested is accurately obtained by the fitting algorithm to the distance from the mobile station to the cell, so that the location of the mobile station can be accurately located.

DRAWINGS

1 is a schematic flowchart of a first embodiment of a method for calculating a distance from a mobile station to a cell according to the present invention;

2 is a schematic diagram of functional modules of a first embodiment of a device for calculating a distance from a mobile station to a cell according to the present invention.

The implementation, functional features, and advantages of the present invention will be further described in conjunction with the embodiments.

detailed description

It is understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

The present invention provides a method of calculating a mobile station to cell distance.

Referring to FIG. 1, FIG. 1 is a schematic flowchart diagram of a first embodiment of a method for calculating a distance from a mobile station to a cell according to the present invention.

In a first embodiment, the method for calculating a mobile station to cell distance includes:

Step 101: Obtain a distance from the mobile station to a preset cell and a preset variable value respectively.

Specifically, the method for obtaining the distance from the mobile station to the preset cell may be: establishing a model by using Global System for Mobile Communications (GSM) road test data, the road test data includes the latitude and longitude of each cell and the latitude and longitude of the mobile station, and GSM requires two The parameters are modeled to fit the curve. Alternatively, the model can be built using CodeDivision Multiple Access (CDMA) drive test data. CDMA requires only one parameter to model the fitted curve. The following is only a detailed introduction of GSM as an example.

Through the latitude and longitude of the mobile station, and the latitude and longitude of each cell, the distance from the mobile station to each cell is calculated by using the distance formula.

The manner of obtaining the signal strength that the respective cells can actually receive the mobile station may be: establishing a model by using GSM road test data, where the road test data includes signal strength and work of each cell. Control, according to the signal strength and power control of each cell, calculate the signal strength that each cell can actually receive the mobile station.

Step 102: According to the distance from the mobile station to the preset cell and the preset variable value, fitting a preset link formula to obtain a parameter value in the link formula.

Preferably, the method according to the distance of the mobile station to a preset cell and the preset variable value is used to fit a preset link formula, and obtain a parameter value in the link formula, including at least the following One:

Obtaining a distance from the mobile station to the preset cell and the moving in a case of acquiring a distance from the mobile station to a preset cell and a time advance of the mobile station to the preset set cell And the time advance amount of the cell set to the preset setting, fitting a preset link formula, and acquiring a parameter value in the link formula;

And obtaining, according to the distance from the mobile station to the preset cell, and the foregoing, in a case of acquiring a distance from the mobile station to a preset cell and a signal strength of the mobile station that the preset cell can actually receive The set cell can actually receive the signal strength of the mobile station, fit a preset link formula, and obtain a parameter value in the link formula;

Obtaining a distance of the mobile station to a preset cell when the time advance amount is the same in the multiple sets of data, and a signal strength that the preset cell can actually receive the mobile station, when acquiring a plurality of sets of data; Obtaining a parameter value in the link formula according to the obtained distance from the mobile station to a preset cell and the signal strength of the pre-set cell actually receiving the mobile station; acquiring the multiple sets of data respectively a parameter value in the link formula corresponding to each time advance amount; wherein the plurality of sets of data are distances, timing advances, and the plurality of presets of the mobile station to the plurality of preset cells respectively The cell can actually receive the signal strength of the mobile station.

Specifically, the distance value and the time advance TA value of the batch are input, and the fitting formula is calculated. When the data distribution is average, the linear formula and the quadratic fitting curve are directly calculated; if the data distribution is not uniform, the segments are divided, and the linear formula is respectively calculated to obtain a multi-line formula.

Enter the distance value of the batch and the actual acceptable signal strength value to calculate the fitting formula. When the data distribution is average, the linear formula and the quadratic fitting curve are directly calculated; if the data distribution is not uniform, the segments are divided, and the linear formula is respectively calculated to obtain a multi-line formula.

Enter the distance value, TA value and signal strength value of the batch to calculate the fitting formula. Assuming that there are multiple TA values, the distance value and the signal strength value corresponding to the same TA value are selected, and the fitting formula is calculated according to the TA value in the same case.

If there are conditions, a separate link model can be separately made for each cell in the area; otherwise, it can be grouped by the cell radio environment or the cell coverage distance to make a universal link model.

Specifically, the calculation process of the fitting formula is as follows:

Set X to the time advance, set the Y value to the actual distance from the mobile station to the cell, process the data in batches, and calculate the fitting formula by industry fitting methods such as least squares method.

Linear fitting formula: Y=aX+b, a, b is the value of the variable calculated by fitting;

Quadratic fitting curve formula: Y=aX ² +bX+c, a, b, c are the formula variables calculated by fitting;

The cubic fitting curve formula: Y = aX ³ + bX ² + cX + d, a, b, c, d is the value of the variable calculated by fitting.

Multi-polyline calculation process: set X as the time advance amount, set Y value as the actual distance from the mobile station to the cell. According to the distribution of X, segment X, and then use the above linear fitting formula or quadratic formula for each segment. The curve formula or the cubic fitting curve formula is calculated. The following is an example of using each of the above linear fit formula calculations as an example:

If X is divided into the following segments x0, x1, x2...xN, then the formula

Y=a1X+b1(x0<=X<x1)

Y=a2X+b2(x1<=X<x2)

...

Y=aNX+bN(xN<=X<xN)

Step 103: Acquire a variable value of the mobile station to the cell to be tested, and calculate a distance of the mobile station to the cell to be tested according to the variable value of the cell to be tested and the parameter value in the link formula.

Preferably, the acquiring the variable value of the mobile station to the cell to be tested, calculating the mobile station to the cell to be tested according to the variable value of the cell to be tested and the parameter value in the link formula Distance, including at least one of the following:

Obtaining, in the case that the link formula is based on a distance from the mobile station to the preset cell and a time advance of the mobile station to the preset set cell, acquiring the cell to be tested Calculating a distance of the mobile station to the cell to be tested according to the time advance of the cell to be tested and the parameter value in the link formula;

In the case that the link formula is based on the distance from the mobile station to the preset cell and the signal strength of the preset cell that can actually receive the mobile station, according to the cell to be tested Receiving a signal strength of the mobile station and a parameter value in the link formula, and calculating a distance of the mobile station to the cell to be tested;

Specifically, it is assumed that the distance value and the time advance TA value of the batch are input, and the fitting formula is calculated. Then, when calculating the distance of the cell to be tested, the time advance TA value of the cell to be tested is obtained, and the distance of the cell to be tested is obtained according to the TA value of the cell to be tested and a fitting formula.

Assuming that the distance value of the batch is input and the actual acceptable signal strength value is calculated, the fitting formula is calculated, and when the distance of the cell to be tested is calculated, the actual acceptable signal strength value of the cell to be tested is obtained, according to the actual acceptable signal strength. The value and the fitting formula are used to obtain the distance of the cell to be tested.

Assuming that the distance value, the TA value, and the signal strength value of the batch are input, the fitting formula is calculated, and when the distance of the cell to be measured is calculated, the TA value and the signal strength value of the cell to be tested are obtained, and corresponding values are obtained according to the TA value. A fitting formula is obtained, and the distance of the cell to be tested is obtained according to the fitting formula and the signal strength.

In addition, in this embodiment, a method for calculating a distance from a mobile station to a base station cell by using a timing advance is provided. The specific implementation steps of the CDMA wireless positioning are as follows:

Do DT and DQT on the road near a certain cell, and collect the road test data with the cell as the serving cell;

Using the drive test data to establish a model of the time advance and the actual distance (can be regarded as a fitting relationship);

Obtain the latitude and longitude of the mobile station from the road test data, obtain the latitude and longitude and direction angle of the cell from the engineering parameters, and calculate the distance from the mobile station to the cell by using the distance formula;

The OneWayDelay value (time advance of CDMA) of the same mobile station is obtained from the matched MR and CDT data; the distance value of the batch and the OneWayDelay value are input, and the fitting formula is calculated. (When the data distribution is average, the linear formula and the quadratic fitting curve are directly calculated; if the data distribution is not uniform, the segments are divided and the linear formula is calculated to obtain the multi-line formula).

The formula is used as a link data model. If there are conditions, a separate link model can be separately made for each cell in the area; otherwise, it can be grouped by the cell radio environment or the cell coverage distance to make a universal link model.

Obtain the time advance required for positioning from the MR and CDT data, and then pass the link model to obtain the distance from the mobile station to the reference cell; refer to the cell OneWayDelay, the incoming link model, The distance from the mobile station to the reference cell is obtained by the calculation formula; the OneWayDelay of the non-reference cell and the OneWayDelay of the reference cell are used to calculate the OneWayDelay of the non-reference cell, the incoming link model, and the distance from the mobile station to the non-reference cell is obtained by the calculation formula; And the above system, the method of establishing the model of the above road test data is also applicable to the A-GPS data.

CDMA uses the same positioning algorithm, based on a large number of drive test data, after applying the mobile station to cell distance method of the present invention, the positioning accuracy of the mobile station is improved a lot, and the positioning accuracy of the mobile station when it is far away from the cell is particularly obvious.

Another method for calculating the distance from the mobile station to the base station cell by means of time advancement, signal strength and power control, and the specific implementation steps of GSM wireless positioning are as follows:

Modeling using GSM drive test data;

The road test data includes the service cell time advancement TA (one scale is 554m), the signal strength of the serving cell and the neighboring cell, the power control, and the latitude and longitude of the mobile station.

The mobile station to cell distance is calculated by using the distance formula and the latitude and longitude of the mobile station and the latitude and longitude of the base station.

Through the signal strength and power control, the actual acceptable signal strength of the mobile station is calculated;

Enter the distance value and TA value of the batch to calculate the fitting formula. (When the data distribution is average, directly calculate the linear formula and the quadratic fitting curve; if the data distribution is not even, divide the segments, calculate the linear formula separately, and obtain the multi-line formula);

Enter the distance value of the batch and the actual acceptable signal strength value to calculate the fitting formula. (When the data distribution is average, directly calculate the linear formula and the quadratic fitting curve; if the data distribution is not even, divide the segments, calculate the linear formula separately, and obtain the multi-line formula);

Enter the distance value, TA value and signal strength value of the batch to calculate the fitting formula.

Obtaining the timing advance, signal strength and power control required for positioning from the MR and CDT data, and then transmitting the link model to obtain the distance from the mobile station to the reference cell;

The signal strength and power control of the serving cell calculate the actual acceptable signal strength of the mobile station, and combine the serving cell TA with the incoming link model to obtain the distance from the mobile station to the serving cell through the calculation formula.

The signal strength and power control of the neighboring area calculate the actual acceptable signal strength of the mobile station, and the incoming link model is used to calculate the distance from the mobile station to the serving cell.

Embodiments of the present invention also provide an apparatus for calculating a distance from a mobile station to a cell.

Referring to FIG. 2, FIG. 2 is a schematic diagram of functional modules of a first embodiment of a device for calculating a distance from a mobile station to a cell according to the present invention. In the first embodiment, the means for calculating the mobile station to cell distance includes:

a first acquiring unit 201, configured to separately acquire a distance from the mobile station to a preset cell and a preset variable value;

Specifically, the method for obtaining the distance from the mobile station to the preset cell may be: establishing a model by using GSM road test data, where the road test data includes latitude and longitude of each cell and latitude and longitude of the mobile station.

The method for obtaining the signal strength of the mobile station can be obtained by using the GSM road test data, where the road test data includes signal strength and power control of each cell, according to the signal strength of each cell. The power control calculates the signal strength that each cell can actually receive the mobile station.

The second obtaining unit 202 is configured to: according to the distance from the mobile station to the preset cell and the preset variable value, fit a preset link formula, and obtain a parameter value in the link formula;

Preferably, the second obtaining unit 202 is configured to:

Specifically, the calculation process of the fitting formula is as follows:

If X is divided into the following segments x0, x1, x2...xN, then the formula

Y=a1X+b1(x0<=X<x1)

Y=a2X+b2(x1<=X<x2)

...

Y=aNX+bN(xN<=X<xN)

The calculating unit 203 is configured to acquire a variable value of the mobile station to the cell to be tested, and calculate, according to the variable value of the cell to be tested and the parameter value in the link formula, the mobile station to the cell to be tested the distance.

Preferably, the calculating unit 203 is configured to:

Specifically, assuming that the distance value and the time advance TA value of the batch are input, and the fitting formula is calculated, when the distance of the cell to be measured is calculated, the time advance TA value of the cell to be tested is obtained, according to the cell to be tested. The TA value and the fitting formula are used to obtain the distance of the cell to be tested.

Assume that the distance value, TA value, and signal strength value of the batch are input, and the fitting formula is calculated. When calculating the distance of the cell to be measured, the TA value and the signal strength value of the cell to be tested are obtained, and a corresponding fitting formula is obtained according to the TA value, and the distance of the cell to be tested is obtained according to the fitting formula and the signal strength.

A method for calculating the distance from a mobile station to a base station cell by using a time advance amount, and the specific implementation steps of the CDMA wireless positioning are as follows:

Do DT and DQT on the road near a certain cell, and collect the road test data with the cell as the serving cell.

Using the drive test data to establish a model of the time advance and the actual distance (can be seen as a fitting relationship):

The latitude and longitude of the mobile station are obtained from the drive test data, and the latitude and longitude and direction angle of the cell are obtained from the engineering parameters, and the distance from the mobile station to the cell is calculated by using the distance formula.

Obtain the time advance required for positioning from the MR and CDT data, and then input the link model to obtain the distance from the mobile station to the reference cell; refer to the cell OneWayDelay, the incoming link model, and obtain the mobile station to the reference cell by using the calculation formula. The non-reference cell PNPhase and the reference cell's OneWayDelay calculate the OneWayDelay of the non-reference cell, the incoming link model, and obtain the distance from the mobile station to the non-reference cell by using the calculation formula; if the system is 3G or above, the above road test data is established. The same method applies to A-GPS data.

CDMA uses the same positioning algorithm, based on a large number of drive test data, after applying the method of calculating the mobile station to cell distance of the present invention, the positioning accuracy of the mobile station is improved a lot, and the distance of the mobile station is improved. The positioning accuracy of the cell is far more obvious when it is far away.

Modeling using GSM drive test data:

Through the signal strength and power control, the actual acceptable signal strength of the mobile station is calculated; the distance value and TA value of the batch are input, and the fitting formula is calculated. (When the data distribution is average, directly calculate the linear formula and the quadratic fitting curve; if the data distribution is not uniform, divide the segments, calculate the linear formula separately, and obtain the multi-line formula); input the distance value of the batch, the actual acceptable signal The intensity value is calculated and the fitting formula is calculated. (When the data distribution is average, directly calculate the linear formula and the quadratic fitting curve; if the data distribution is not uniform, divide the segments, calculate the linear formula separately, and obtain the multi-line formula); input the distance value, TA value and signal of the batch The intensity value is calculated and the fitting formula is calculated.

Obtain the time advancement, signal strength and power control required for positioning from MR and CDT data, and then input the link model to obtain the distance from the mobile station to the reference cell; the signal strength and power control of the serving cell calculate the actual acceptable signal of the mobile station Intensity, combined with the serving cell TA, the incoming link model, the distance from the mobile station to the serving cell is obtained by the calculation formula.

The embodiment of the present invention separately acquires the distance from the mobile station to the preset cell and advances And setting a variable value, fitting a preset link formula according to the distance from the mobile station to the preset cell and the preset variable value, acquiring a parameter value in the link formula, and acquiring the mobile Calculating the distance of the mobile station to the cell to be tested according to the variable value of the cell to be tested and the parameter value in the link formula, and accurately obtaining the mobile by using a fitting algorithm The distance from the station to the cell, so that the location of the mobile station can be accurately located.

The above are only the preferred embodiments of the present invention, and are not intended to limit the scope of the invention, and the equivalent structure or equivalent process transformations made by the description of the present invention and the drawings are directly or indirectly applied to other related technical fields. The same is included in the scope of patent protection of the present invention.

Those skilled in the art will appreciate that embodiments of the present invention can be provided as a method, system, or computer program product. Accordingly, the present invention can take the form of a hardware embodiment, a software embodiment, or a combination of software and hardware. Moreover, the invention 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 and optical storage, etc.) including computer usable program code.

The present invention has been described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (system), and computer program products according to embodiments of the invention. 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. Means for implementing the functions specified in one or more of the flow or in a block or blocks of the flow chart.

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 device is implemented in a flow chart A function specified in a block or blocks of a process or multiple processes and/or block diagrams.

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.

The above is only the preferred embodiment of the present invention and is not intended to limit the scope of the present invention.

Claims

A method for calculating a mobile station to cell distance, the method comprising:

Obtaining a distance from the mobile station to the preset cell and a preset variable value respectively;

And according to the distance from the mobile station to the preset cell and the preset variable value, fitting a preset link formula to obtain a parameter value in the link formula;

Obtaining a variable value of the mobile station to the cell to be tested, and calculating a distance of the mobile station to the cell to be tested according to the variable value of the cell to be tested and the parameter value in the link formula.
The method of claim 1, wherein the variable value comprises at least: a timing advance of the mobile station to the respective cells and/or a signal strength at which the respective cells can actually receive the mobile station.
The method according to claim 1, wherein said fitting a preset link formula according to a distance of said mobile station to a preset cell and said preset variable value, obtaining said link formula The value of the parameter, including at least one of the following:

Obtaining a distance from the mobile station to the preset cell and the moving in a case of acquiring a distance from the mobile station to a preset cell and a time advance of the mobile station to the preset set cell And the time advance amount of the cell set to the preset setting, fitting a preset link formula, and acquiring a parameter value in the link formula;

And obtaining, according to the distance from the mobile station to the preset cell, and the foregoing, in a case of acquiring a distance from the mobile station to a preset cell and a signal strength of the mobile station that the preset cell can actually receive The set cell can actually receive the signal strength of the mobile station, fit a preset link formula, and obtain a parameter value in the link formula;

Obtaining a distance of the mobile station to a preset cell when the time advance amount is the same in the multiple sets of data, and a signal strength that the preset cell can actually receive the mobile station, when acquiring a plurality of sets of data; Obtaining the link according to the distance of the obtained mobile station to a preset cell and the signal strength of the preset mobile station that can actually receive the mobile station a parameter value in the formula; respectively, obtaining parameter values in the link formula corresponding to each time advance amount in the plurality of sets of data; wherein the multiple sets of data are respectively for the mobile station to multiple preset cells The distance, the timing advance, and the plurality of pre-set cells may actually receive the signal strength of the mobile station.
The method according to claim 3, wherein the preset link formula is a linear fitting formula or a quadratic fitting curve formula or a cubic fitting curve formula or a polyline fitting formula.
The method according to claim 1, wherein the acquiring the variable value of the mobile station to the cell to be tested, calculating the value according to the variable value of the cell to be tested and the parameter value in the link formula The distance from the mobile station to the cell to be tested includes at least one of the following:

Obtaining, in the case that the link formula is based on a distance from the mobile station to the preset cell and a time advance of the mobile station to the preset set cell, acquiring the cell to be tested Calculating a distance of the mobile station to the cell to be tested according to the time advance of the cell to be tested and the parameter value in the link formula;

In the case that the link formula is based on the distance from the mobile station to the preset cell and the signal strength of the preset cell that can actually receive the mobile station, according to the cell to be tested Receiving a signal strength of the mobile station and a parameter value in the link formula, and calculating a distance of the mobile station to the cell to be tested;

The link formula is that the time advance according to the distance from the mobile station to the preset cell, the time advance of the mobile station to the preset set cell, and the preset cell may actually receive the In the case that the signal strength of the mobile station is fitted, the corresponding link formula is selected according to the timing advance of the mobile station to the cell to be tested, and the signal strength and the selected chain of the mobile station are received according to the cell to be tested. The parameter value in the road formula calculates the distance of the mobile station to the cell to be tested.
A device for calculating a distance from a mobile station to a cell, the device comprising:

a first acquiring unit, configured to separately acquire a distance from the mobile station to a preset cell and a preset variable value;

a second acquiring unit, configured to: according to the distance from the mobile station to the preset cell and the preset variable value, fitting a preset link formula to obtain a parameter value in the link formula;

a calculating unit, configured to acquire a variable value of the mobile station to the cell to be tested, and calculate, according to the variable value of the cell to be tested and the parameter value in the link formula, the mobile station to the cell to be tested the distance.
The apparatus of claim 6, wherein the variable value comprises at least a timing advance of the mobile station to the respective cells and/or a signal strength at which the respective cells can actually receive the mobile station.
The apparatus according to claim 6, wherein

The second acquiring unit is configured to acquire a parameter value in the link formula in at least one of the following manners:

Obtaining a distance from the mobile station to the preset cell and the moving in a case of acquiring a distance from the mobile station to a preset cell and a time advance of the mobile station to the preset set cell And the time advance amount of the cell set to the preset setting, fitting a preset link formula, and acquiring a parameter value in the link formula;

And obtaining, according to the distance from the mobile station to the preset cell, and the foregoing, in a case of acquiring a distance from the mobile station to a preset cell and a signal strength of the mobile station that the preset cell can actually receive The set cell can actually receive the signal strength of the mobile station, fit a preset link formula, and obtain a parameter value in the link formula;

Obtaining a distance of the mobile station to a preset cell when the time advance amount is the same in the multiple sets of data, and a signal strength that the preset cell can actually receive the mobile station, when acquiring a plurality of sets of data; According to the distance of the mobile station after the acquisition to the preset cell And the pre-set cell actually receives the signal strength of the mobile station to obtain a parameter value in the link formula; respectively acquiring the link formula corresponding to each time advance amount in the multiple sets of data a parameter value; wherein the plurality of sets of data are distances, time advancements, and signal strengths that the plurality of preset cells can actually receive the mobile station, respectively, from the mobile station to the plurality of preset cells.
The apparatus according to claim 8, wherein the preset link formula is a linear fitting formula or a quadratic fitting curve formula or a cubic fitting curve formula or a polyline fitting formula.
The apparatus according to claim 6, wherein

The calculating unit is configured to calculate, by using at least one of the following calculation manners, a distance from the mobile station to the to-be-tested cell:

Obtaining, in the case that the link formula is based on a distance from the mobile station to the preset cell and a time advance of the mobile station to the preset set cell, acquiring the cell to be tested Calculating a distance of the mobile station to the cell to be tested according to the time advance of the cell to be tested and the parameter value in the link formula;

In the case that the link formula is based on the distance from the mobile station to the preset cell and the signal strength of the preset cell that can actually receive the mobile station, according to the cell to be tested Receiving a signal strength of the mobile station and a parameter value in the link formula, and calculating a distance of the mobile station to the cell to be tested;

The link formula is that the time advance according to the distance from the mobile station to the preset cell, the time advance of the mobile station to the preset set cell, and the preset cell may actually receive the In the case that the signal strength of the mobile station is fitted, the corresponding link formula is selected according to the timing advance of the mobile station to the cell to be tested, and the signal strength and the selected chain of the mobile station are received according to the cell to be tested. The parameter value in the road formula calculates the distance of the mobile station to the cell to be tested.