KR100833300B1 - Method of checking signal received from repeater and checking device using the same - Google Patents

Abstract

A method and an apparatus for judging the existence of a signal transmitted through a repeater are provided to effectively correct a positioning error generated due to the existence of a repeater in a positioning system by judging whether a transmitted signal has been through a repeater. Using the strength information of transmitted signals, a signal judgement part judges an estimated repeater signal as a signal transmitted from a base station if the strength of the estimated repeater signal is smaller than the minimum critical strength(S910). In case the strength of the estimated repeater signal is larger than the minimum critical strength, however, the signal judgement part judges whether a signal received from another sector of the base station exists(S920). If such a signal doesn't exist, the signal judgement part judges whether the strength of the estimated repeater signal is larger than a call stabilization strength(S930). If so, the signal judgement part judges the estimated repeater signal as a signal transmitted through a repeater.

Description

Repeater signal determination method and determination device using the same {METHOD OF CHECKING SIGNAL RECEIVED FROM REPEATER AND CHECKING DEVICE USING THE SAME}

1 is a diagram schematically illustrating an example of a mobile communication network including a repeater.

2 is a flowchart illustrating a method of determining whether a signal is a repeater according to an embodiment of the present invention.

3 is a diagram illustrating an example of a base station antenna sector.

FIG. 4 is a diagram illustrating an example of radio signal strength according to a distance between a base station and a terminal shown in FIG. 3.

5 is a diagram illustrating a radio wave radiation pattern of the base station shown in FIG.

6 is a diagram illustrating an example of a base station and a terminal when there is a repeater.

FIG. 7 is a diagram illustrating radio signal strength according to a distance between a base station and a terminal shown in FIG. 6.

FIG. 8 is a diagram schematically illustrating the strength of radio signal according to the distance shown in FIG. 7.

9 is a flowchart illustrating a step-by-step method for determining whether or not a repeater signal according to an embodiment of the present invention.

10 is a block diagram showing an apparatus for determining whether or not a repeater signal according to an embodiment of the present invention.

<Explanation of symbols for the main parts of the drawings>

620: terminal

630: repeater

1010: signal receiver

1020: signal determination unit

The present invention relates to a wireless positioning technology, and more particularly, to a method and apparatus for determining whether the transmitted signal is a signal transmitted through a repeater using strength information and sector information of a signal transmitted from a base station or a repeater. It is about.

In general, wireless positioning technology includes a network-based method using a signal received by a base station of a communication network, a terminal-based method using a GPS receiver mounted on a terminal, and a hybrid method in which the above two methods are used. Doing.

The base station method uses the Angle of Arrival (AOA) method using the azimuth angle of the signal received from the terminal, the time of arrival (TOA) method that measures the distance of the propagation time between the base station and the terminal, and reaches the radio waves from two signal sources. It can be classified into TDOA (Time Difference of Arrival) scheme using time difference, and TDOA scheme is again a forward link based scheme consisting of multiple signal sources and one receiver, and one signal source and multiple receivers. It is divided into reverse link based scheme.

For example, the basic principle of positioning by TDOA method based on the most widely used forward link is that once the terminal measures the difference in propagation time that is proportional to the difference in distance from the two base stations to the terminal, It can be seen that the distance difference is located at a constant place, that is, on a hyperbola focusing on two base stations. Therefore, if two hyperbolas are obtained from three base stations, the intersection of the two hyperbolas becomes the position of the terminal.

In a mobile communication network, coverage of a base station cell is limited. There is a problem that mobile communication service is not provided smoothly in the underground space, apartment complex, high-rise buildings, etc., which are poor radio wave environments among mountain wallpaper, remote islands, and urban areas. Therefore, repeaters have been used for the purpose of replenishing the lowest limit signal range area to build a smooth communication environment and to extend the service area of the base station. The repeater is used for extending service coverage in the radio shadow area, the radio wave weak area in the cell (cell) of the base station because it has the advantage that the facility investment and operation costs and installation is easy compared to the new base station.

1 is a diagram schematically illustrating an example of a mobile communication network including a repeater.

Referring to FIG. 1, the terminal 140 is spaced apart from the base station BS1 110 of the cell to which it belongs by R1 and is spaced apart from the neighbor base stations BS2 120 and BS3 130 by R2 and R3. In addition, a repeater 150 exists between the terminal 140 and the base station BS3 130. If the repeater 150 does not exist, the terminal 140 acquires positioning information delayed by a time corresponding to the distance of R2-R1 from the neighboring base station BS2 120 when the base station BS1 110 is referred to. Positioning information delayed by a time corresponding to the distance of R3-R1 from another neighboring base station BS3 130 is obtained.

When there is a repeater in the mobile communication network, a repeater does not exist between the terminal 140 and the base stations BS1 110 and BS2 120, but a repeater 150 exists between the terminal 140 and the base station BS3 130. . Therefore, in this case, when the terminal 140 refers to the base station BS1 110, the terminal 140 acquires positioning information delayed by a time proportional to the distance of the R2-R1 from the neighboring base station BS2 120, and the other neighboring base station BS3 130. ) And positioning information delayed by a time proportional to the distance of R3-R1 and a time delay value of the repeater 150 itself. Although the distance between the actual terminal and the base station BS1 (110) is R1, there is a problem that an error corresponding to the distance corresponding to the time delay value by the repeater occurs.

Therefore, it is necessary to determine whether the signal is a signal transmitted from the repeater in order to correct the error of the positioning information generated due to the presence of the repeater.

The present invention has been made to solve the problems of the prior art described above, by determining whether the transmitted signal in the wireless positioning technology is a signal passed through the repeater to determine the positioning error caused by the presence of the repeater in the positioning system The objective is to be able to correct effectively.

In addition, an object of the present invention is to determine whether a repeater signal is simple and accurate by using signal strength information and sector information for each sector of a base station in determining whether a transmitted signal is a signal that has passed through a repeater.

In addition, the present invention provides an efficient positioning system by determining whether a transmitted signal passes through a repeater using the strength of the transmitted signal and the base station sector information without measuring the distance between the base stations and the round trip delay time between the terminal and the base station. Its purpose is to be able to implement.

In addition, an object of the present invention is to reduce the error of the positioning system in a wide range of areas by being easily applied to the synchronous network, asynchronous network, WiFi, WiMAX and WiBro of mobile communication in the network-based location tracking technology.

In addition, the present invention by simply mounting a repeater signal whether or not the conventional terminal or base station to determine whether or not the repeater signal without major changes in the system, it is possible to reduce the positioning error economically and efficiently because it is possible to correct the positioning error For that purpose.

In order to achieve the above object and to solve the above-mentioned problems of the prior art, a method for determining whether a repeater signal according to an embodiment of the present invention receives the signals transmitted from the base station or repeater and the strength information of the transmitted signals and Generating sector information and using the strength information and the sector information, whether there is a signal received from a sector other than the expected repeater signal among the transmitted signals, and the expected repeater signal has a strength equal to or greater than a predetermined reference value. And determining whether the expected repeater signal is a signal transmitted through the repeater.

In addition, the repeater signal determination device according to another embodiment of the present invention receives a signal transmitted from a base station or a repeater to obtain the strength information and sector information of the transmitted signals and using the strength information and the sector information Thus, the predicted repeater signal is transmitted through the repeater depending on whether there is a signal received from a sector other than the predicted repeater signal among the transmitted signals, and whether the predicted repeater signal has a strength greater than or equal to a predetermined reference value. Characterized in that it comprises a signal determination unit for determining whether or not.

In this case, the expected repeater signal may be a signal having the strongest signal strength among the transmitted signals.

Hereinafter, a method and a device for determining whether a transmitted signal passes through a repeater will be described in detail with reference to the accompanying drawings.

2 is a flowchart illustrating a method of determining whether a signal is a repeater according to an embodiment of the present invention.

Referring to FIG. 2, step S210 is a step of receiving signals transmitted from a base station or repeater and generating strength information and sector information of the transmitted signals. In this step, the strength of the signal may be measured for each transmitted signal to generate strength information for each signal. Since the transmitted signals each include sector information of the base station, sector information may be generated for each transmitted signal using, for example, a CELL ID scheme. In addition, the intensity information may be provided in various units, for example, may be provided in decibels (dB).

However, generating the strength information and the sector information of the transmitted signals may be to obtain the strength information and sector information of the transmitted signals by separating the signal for each base station when receiving a signal transmitted from one or more base stations.

In addition, since the base station antenna and the terminal antenna are reversible transmission and reception, both the base station antenna and the terminal antenna may correspond to the receiving device of the present invention.

Step S220 uses the strength information and the sector information of step S210 to determine whether there is a signal received from a sector other than the expected repeater signal among the transmitted signals, and the predicted repeater signal has a strength equal to or greater than a predetermined reference value. It is a step of determining whether the expected repeater signal is a signal transmitted through the repeater according to whether or not. The reference value may be set differently and changed according to a communication environment such as a mobile communication environment or other weather, geographical conditions, and the like.

In this case, the expected repeater signal may be a signal having the strongest signal strength among the transmitted signals. In addition, the expected repeater signal may be two or more in the order of the strongest signal strength of the transmitted signals.

The predicted repeater signal is determined using the strength information, and the sector information is used to determine which sector of the base station the expected repeater signal is used. It is then determined whether there is a signal received from a sector other than the sector that emitted the expected repeater signal.

3 is a diagram illustrating an example of a base station antenna sector.

Referring to FIG. 3, a structure of an antenna 310 of a base station 310 including three alpha, beta, and gamma sectors is shown. However, the number of sectors of the base station may be determined differently according to the type and characteristics of the antenna.

Each sector of the base station emits (receives) a signal mainly in its sector direction and emits (receives) a small signal in the other sector direction. The signals emitted for each sector are distinguished by a cell ID or the like.

As shown in FIG. 3, if the terminal 320 is in the region of the alpha sector, the terminal 320 will most strongly receive the signal emitted by the base station 310 antenna for the alpha sector. In this case, the strongest reception of the signal radiated by the terminal 320 will be the antenna in the alpha sector of the base station 310. And if the terminal 320 is in the alpha sector area and is moving away from the base station 310, the signal received by the terminal 320 will be gradually attenuated, but in this case, the terminal 320 will receive Among the signals, the expected repeater signal is a signal emitted by the antenna of the alpha sector.

FIG. 4 is a diagram illustrating an example of radio signal strength according to a distance between a base station and a terminal shown in FIG. 3.

Referring to FIG. 4, when a terminal exists in an alpha sector region of a base station and moves in a direction away from the base station, signal strength according to a distance between the base station and the terminal is gradually decreasing. However, regardless of the distance between the terminal and the base station, the terminal receives the alpha sector signal of the base station most strongly. In addition, the signal of the beta sector is not received at about 500m, and the signal of the gamma sector is not being received at about 350m.

That is, up to about 350m from the base station, the signals of the alpha sector, the beta sector, and the gamma sector are all received, so that the number of signals is three and each signal has different sector information. However, between about 350m and 500m from the base station, only the signals of the alpha sector and the beta sector are received, so that the number of signals is two, and only the signals of the alpha sector are received from 500m or more from the base station. This means that the number of signals in the sector that can be received varies depending on the distance between the base station and the terminal. Conversely, the number of corresponding sectors of the received signals is closely related to the distance between the base station and the terminal and provides data for determining whether a repeater is present.

4 is only one example showing a change in radio signal strength, and specific values may vary according to a mobile communication network and a communication environment.

5 is a diagram illustrating a radio wave radiation pattern of the base station shown in FIG.

Referring to FIG. 5, in general, a base station antenna emits signals in the form of a main lobe and a side lobe for each sector. The signal of the major protrusion is a strong signal, and has orthogonality (clear orthogonality) is a characteristic that is transmitted far, and the signal of the minor protrusion is a weak signal has a characteristic that is orthogonality and is not transmitted far. For example, when a terminal in the alpha sector region receives a signal transmitted from the beta sector, the terminal receives a sub-projection signal of the beta sector, and thus may be a weak signal.

6 is a diagram illustrating an example of a base station and a terminal when there is a repeater.

Referring to FIG. 6, a repeater 630 is located in an alpha sector of the base station 610, and the terminal 620 is located in the alpha sector and is moving away from the base station 610.

FIG. 7 is a diagram illustrating radio signal strength according to a distance between a base station and a terminal shown in FIG. 6.

Referring to FIG. 7, since the terminal exists in the region of the alpha sector, it can be seen that the intensity of the signal received from the alpha sector is greatest at any position. In addition, as described above, the number of received signals may vary according to the distance between the base station and the terminal.

Referring to FIG. 7, the signal intensity of the alpha sector shows a decreasing trend, but the intensity increases from 300 m to 400 m in the vicinity of the base station 710. This indicates that the signal strength of the alpha sector is amplified by the presence of a repeater in the alpha sector region around 400m from the base station.

Therefore, the signal of the reduced alpha sector is amplified as it goes through the repeater. Therefore, if the signal strength difference of the other sectors other than the sector of the signal and the number of signal receptions of the other sectors are used, it is determined that the signal is the signal that has passed through the repeater. can do.

FIG. 8 is a diagram schematically illustrating the strength of radio signal according to the distance shown in FIG. 7.

Referring to FIG. 8, the interval 810 means that the signal is amplified by the influence of the repeater in the alpha sector region. The signal in the alpha sector region after the section 810 is a signal that has passed through the repeater and needs to be corrected for positioning error in the positioning system.

As shown in FIG. 8, the signal strength and the number of sectors of the signal at a specific position vary depending on whether the signal is amplified through the repeater. Before the signal of an alpha sector passes through a repeater, the number of sectors of the signal is three alpha, beta, and gamma sectors. In addition, the signal strength of the alpha sector, which is an expected repeater signal, and the signal strength of other sectors are not significantly different. After the signal of the alpha sector passes through the repeater, the signals of the alpha and beta sectors are received according to the distance, and only the signals of the alpha sector are received. The signal strength of the alpha sector and that of the beta sector are very different.

After all, by using the strength information of the expected repeater signal and the number of sectors of the received signal, it is possible to determine whether or not the corresponding predicted repeater signal is a signal passed through the repeater.

Accordingly, the present invention generates and uses the strength information and sector information of the transmitted signals, whether there is a signal received from a sector other than the expected repeater signal of the transmitted signals and the strength of the predicted repeater signal more than a predetermined reference value Determining whether the expected repeater signal is a signal transmitted through the repeater.

9 is a flowchart illustrating a step-by-step method for determining whether or not a repeater signal according to an embodiment of the present invention. Receiving the above-described signals and generating strength information and sector information of the received signals are omitted.

Before describing each step, terms of each step are described as follows.

Expected Repeater Signal (X): One signal for determining a repeater signal among several sector signals of one base station. The expected relay signal X may be a signal having the strongest signal strength among the transmitted signals, and may be two or more in the order of the strongest signal strength among the transmitted signals.

Lowest Limit Strength (B): Signal strength that can receive radio waves but is unstable due to weak signals. Appropriate value for each mobile communication environment

Call Stability Strength (A): Stable signal strength without fear of disconnection. Appropriate value for each mobile communication environment

Residual signal strength (Yn + N + S): the strength (Yn) of the remaining signals excluding the expected repeater signal among the multiple sector signals of one base station, the major and minor protrusions of the signals received from several sectors of one base station The mean (N) of the difference in signal strength of and the standard deviation (S) of the difference in signal strength of the major and minor projections of a signal received from several sectors of one base station. N and S apply appropriate values for each mobile communication environment

However, the minimum threshold strength, the call stability strength, and the residual signal strength may be appropriately applied for each mobile communication environment, and may be changed depending on the communication environment such as weather and geographical requirements.

Referring to FIG. 9, in operation S910, when the strength of the predicted repeater signal X is smaller than the lowest threshold strength B using the strength information of the transmitted signals, the predicted repeater signal X may be transmitted from the base station. Judging by the signal. If the expected repeater signal (X) is less than the lowest threshold strength, it is very likely that the signal is not amplified by the repeater.

If the strength of the predicted repeater signal X in step S910 is greater than the lowest threshold strength B, whether there is a signal received from a sector other than the predicted repeater signal X and the strength of the predicted repeater signal X According to the information, it may be determined whether the expected repeater signal X is a signal transmitted through the repeater.

Step S920 is a step of determining whether there is a signal received from another sector of the base station which has transmitted the expected relay signal X. This step may use the sector information of the signals, if there is no signal received in a sector other than the expected repeater signal (X), go to step S930, and if there is a signal received in another sector goes to step S940 .

In step S930, if the strength of the predicted repeater signal X is higher than the lowest limit signal strength B and there is no signal received from a sector other than the predicted repeater signal X, the intensity of the predicted repeater signal X ) Is determined whether the predicted repeater signal X is a signal transmitted through the repeater. When the strength of the predicted repeater signal X is higher than the call stability strength A, the predicted repeater signal X is determined to be a signal transmitted through the repeater. If the predicted repeater signal X is less than the call stability strength A, it may be determined as a base station signal. Because if there is no signal received from a sector other than the expected repeater signal (X) from the base station, then the terminal is far enough away from the base station, in which case the strength of the expected repeater signal (X) is greater than the call stability strength (A). If it is large, the probability that the signal is amplified by the repeater is very high, and if the strength of the predicted repeater signal X is less than the call stability strength A, the signal transmitted from the base station is very high.

Step S940 is performed when the intensity of the predicted repeater signal X is higher than the lowest limit signal strength B and there is a signal received from a sector other than the predicted repeater signal X. It is determined whether the expected repeater signal X is a signal transmitted through the repeater according to whether the strength is higher than the residual signal strength Yn + N + S. That is, in this case, if the strength of the expected repeater signal X is greater than the residual signal strength Yn + N + S, it is determined as a repeater signal, and the strength of the expected repeater signal X is the residual signal strength Yn + N +. If less than S), it is determined as a base station signal. In this step, the residual signal strength (Yn + N + S) may be a plurality of values. That is, when there are two signals Yn received from sectors other than the expected repeater signal X, the residual signal strength Yn + N + S has two values. Because the predicted repeater signal (X) is greater than the sum of the difference between the signal strengths of the average main and minor protrusions and other signals except the predicted repeater signal (X), the predicted repeater signal (X) is the signal amplified by the repeater. This is because the possibility is very high.

Some specific embodiments according to the flowchart shown in FIG. 9 are as follows.

As shown in FIG. 6, the base station antenna is composed of three sectors, and is referred to as an alpha, beta, and gamma sector. In this case, the signal received from the terminal in one base station is -11dB in the alpha sector, -24dB in the beta sector, and -43dB in the gamma sector, and N = 6dB, S = 3dB, A = -15dB, Assume that B = -25 dB applied.

In the above example, the predicted repeater signal X has a strength of -11 dB as a signal received in the alpha sector. Also, since Yn is a signal other than X, it has two values of -24dB and -43dB received in the beta sector and the gamma sector.

When the signal of the above-described example is analyzed according to the flowchart shown in FIG. 9, the predicted repeater signal (X = -11dB) is greater than the minimum limit signal (B = -25dB) in step S910, and the flow moves to step S920. . In step S920, since a signal received from another sector of the base station exists, the process moves to step S940. In step S940, the residual signal strength Yn + N + S has two values as -24 + 6 + 3 = -15 or -43 + 6 + 3 = -34. Since both residual signal strengths are smaller than the strength of the predicted repeater signal X, the received predicted repeater signal X is determined to be a repeater signal.

In the above description, the technical idea of the present invention has been described with reference to a case in which an expected repeater signal is a signal having the strongest signal strength, but when receiving a signal from a base station composed of 4 sectors or more, the expected repeater signal may be two or more. Can be.

The repeater signal determination method according to the present invention is implemented in the form of program instructions that can be executed by various computer means may be recorded on a computer readable medium. The computer readable medium may include program instructions, data files, data structures, etc. alone or in combination. Program instructions recorded on the media may be those specially designed and constructed for the purposes of the present invention, or they may be of the kind well-known and available to those having skill in the computer software arts. Examples of computer-readable recording media include magnetic media such as hard disks, floppy disks, and magnetic tape, optical media such as CD-ROMs, DVDs, and magnetic disks, such as floppy disks. Magneto-optical media, and hardware devices specifically configured to store and execute program instructions, such as ROM, RAM, flash memory, and the like. The medium may be a transmission medium such as an optical or metal wire, a waveguide, or the like including a carrier wave for transmitting a signal specifying a program command, a data structure, or the like. Examples of program instructions include not only machine code generated by a compiler, but also high-level language code that can be executed by a computer using an interpreter or the like. The hardware device described above may be configured to operate as one or more software modules to perform the operations of the present invention, and vice versa.

10 is a block diagram showing an apparatus for determining whether or not a repeater signal according to an embodiment of the present invention.

Referring to FIG. 10, the apparatus for determining whether or not a repeater signal according to the present invention receives a signal transmitted from a base station or a repeater, and includes a signal receiver 1010 for obtaining strength information and sector information of the transmitted signals, and the strength information and the sector. By using the information, the predicted repeater signal passes through the repeater depending on whether there is a signal received from a sector other than the predicted repeater signal among the transmitted signals and whether the predicted repeater signal has a strength above a predetermined reference value. And a signal determination unit 1020 that determines whether the signal is a transmitted signal.

The signal determiner 1020 determines the predicted repeater signal as a signal transmitted from a base station when the strength of the predicted repeater signal is smaller than the minimum limit signal strength using the strength information, and the strength of the predicted repeater signal When the signal is greater than the lowest limit signal strength, it may be determined whether there is a signal received from a sector other than the expected repeater signal, and whether the expected repeater signal is a signal transmitted through the repeater according to the strength of the expected repeater signal.

Further, the signal determiner 1020 may determine that the strength of the expected repeater signal is greater than the minimum threshold signal strength and no signal is received from a sector other than the expected repeater signal. It may be determined whether the expected repeater signal is a signal transmitted through the repeater depending on whether it is higher.

In addition, the signal determiner 1020 may determine the expected repeater signal as a signal transmitted through the repeater when the strength of the expected repeater signal is higher than the call stability.

In addition, the signal determiner 1020 may determine that the strength of the expected repeater signal is higher than the minimum threshold signal strength and there is a signal received from a sector other than the expected repeater signal. It may be determined whether the expected repeater signal is a signal transmitted through the repeater depending on whether it is higher.

In addition, the signal determiner 1020 may determine whether the predicted repeater signal is a signal transmitted through a repeater when the strength of the predicted repeater signal is higher than the residual signal strength.

Up to now, the repeater signal determination apparatus according to the present invention has been described with reference to FIG. Since the details of the embodiments described above with reference to FIGS. 2 to 8 may be applied to the apparatus for determining whether or not a repeater signal according to the present invention, detailed descriptions related to the present apparatus will be omitted.

As described above, although the present invention has been described with reference to limited embodiments and drawings, the present invention is not limited to the above embodiments, and those skilled in the art to which the present invention pertains various modifications and variations from such descriptions. This is possible.

Therefore, the scope of the present invention should not be limited to the described embodiments, but should be determined not only by the claims below but also by the equivalents of the claims.

The present invention simply determines the presence of a repeater by determining whether the transmitted signal is a signal that has passed through a repeater based only on the strength information of the transmitted signals and information on the base station sector, and is generated due to the presence of the repeater in the positioning system. Positioning error can be corrected effectively.

In the present invention, in determining whether a transmitted signal is a signal passed through a repeater, whether or not a repeater signal can be determined with high accuracy by using signal strength information and sector information for each sector of the base station.

In addition, the present invention can contribute to cost reduction because it does not make a big change to the existing mobile communication network by determining whether the signal transmitted based on the existing mobile communication network is transmitted from the repeater.

In addition, the present invention by determining whether the transmitted signal is a signal passed through the repeater using the strength of the transmitted signal and the base station sector information without having to measure the repeater of the base station or the distance between the base station and the round trip delay time between the terminal and the base station The positioning system can be efficiently implemented.

In addition, the present invention can be easily applied to the synchronous network, asynchronous network, WiMAX and WiBro of the mobile communication in the network-based location tracking technology can reduce the error of the positioning system in a wide range.

In addition, the present invention is economical and efficient because it can be implemented without changing the system because it is possible to determine whether the repeater signal and the correction of the positioning error by simply mounting the repeater signal whether the terminal or base station in the conventional terminal or base station.

In addition, according to the present invention, it is possible to cope with the change of the communication network economically and flexibly by setting an appropriate reference value for each mobile communication environment despite the change of the communication network.

Claims (27)

Receiving signals transmitted from a base station or repeater to generate strength information and sector information of the transmitted signals; And The prediction is performed based on the strength information and the sector information according to whether there is a signal received from a sector other than the expected repeater signal among the transmitted signals, and whether the expected repeater signal has a strength equal to or greater than a predetermined reference value. Determining whether the repeater signal is a signal transmitted through the repeater Repeater signal determination method comprising a. The method of claim 1, The expected repeater signal is Repeater signal determination method characterized in that the signal strength of the transmitted signal is the strongest. The method of claim 2, The step of determining whether the signal is transmitted through the repeater When the strength of the expected repeater signal is less than the minimum threshold strength using the strength information, the expected repeater signal is determined to be a signal transmitted from a base station, If the strength of the expected repeater signal is greater than the lowest threshold strength, whether there is a signal received from a sector other than the expected repeater signal, and whether the expected repeater signal is a signal transmitted through the repeater according to the strength information of the expected repeater signal. Repeater signal determination method characterized in that it determines whether or not. The method of claim 3, The step of determining whether the signal is transmitted through the repeater If the strength of the expected repeater signal is higher than the lowest threshold strength and there is no signal received from a sector other than the expected repeater signal, the expected repeater signal is determined by whether the strength of the expected repeater signal is higher than the call stability strength. Repeater signal determination method characterized in that it is determined whether the signal transmitted through. The method of claim 4, wherein The step of determining whether the signal is transmitted through the repeater And determining the predicted repeater signal as a signal transmitted through the repeater when the strength of the predicted repeater signal is higher than the call stability. The method of claim 3, The step of determining whether the signal is transmitted through the repeater If the strength of the expected repeater signal is higher than the lowest threshold strength and there is a signal received from a sector other than the expected repeater signal, then the expected repeater signal is determined by whether the strength of the expected repeater signal is higher than the residual signal strength. Repeater signal determination method characterized in that it is determined whether the signal transmitted through. The method of claim 6, The step of determining whether the signal is transmitted through the repeater And determining the predicted repeater signal as a signal transmitted through the repeater when the strength of the predicted repeater signal is higher than the residual signal strength. The method of claim 7, wherein The residual signal strength is the strength of the remaining signals except for the expected repeater signal among the multiple sector signals of one base station, the average of the signal strength difference between the major and minor protrusions of the signals received from the multiple sectors of one base station, and one 10. A method for determining whether or not a repeater signal is obtained by adding a standard deviation of signal intensity differences between a main protrusion and a sub-projection of a signal received from various sectors of a base station. The method of claim 3, The minimum threshold strength may be set for each mobile communication environment and may be changed according to the communication environment. The method of claim 4, wherein The call stabilization strength may be set for each mobile communication environment and may be changed according to a communication environment. The method of claim 6, The residual signal strength may be set for each mobile communication environment and may be changed according to a communication environment. The method of claim 8, Among the several sector signals of the one base station, the strength of the remaining signals except for the expected repeater signal, the average of the signal strength difference between the major and minor protrusions of the signals received from the several sectors of the one base station, and the The standard deviation of the signal intensity difference between the main protrusion and the sub-projection of the signal received from the various sectors may be set for each mobile communication environment and may be changed according to the communication environment. The method of claim 2, Generating the strength information and sector information of the transmitted signals When receiving a signal transmitted from one or more base stations, a method for determining whether a repeater signal, characterized in that for obtaining the strength information and sector information of the transmitted signals by separating the signal for each base station. A computer-readable recording medium in which a program for executing the method of any one of claims 1 to 13 is recorded. A signal receiver for receiving signals transmitted from a base station or repeater and obtaining strength information and sector information of the transmitted signals; And The prediction is performed based on the strength information and the sector information according to whether there is a signal received from a sector other than the expected repeater signal among the transmitted signals, and whether the expected repeater signal has a strength equal to or greater than a predetermined reference value. Signal determination unit for determining whether the repeater signal is a signal transmitted through the repeater Repeater signal determination device comprising a. The method of claim 15, The expected repeater signal is Repeater signal determination device, characterized in that the signal strength of the transmitted signal is the strongest. The method of claim 16, The signal determination unit When the strength of the expected repeater signal is less than the minimum threshold strength using the strength information, the expected repeater signal is determined to be a signal transmitted from a base station, If the strength of the expected repeater signal is greater than the lowest threshold strength, whether there is a signal received from a sector other than the expected repeater signal, and whether the expected repeater signal is a signal transmitted through a repeater according to the strength of the expected repeater signal. Repeater signal determination device, characterized in that for determining The method of claim 17, The signal determination unit If the strength of the expected repeater signal is higher than the lowest threshold strength and there is no signal received from a sector other than the expected repeater signal, the expected repeater signal is determined by whether the strength of the expected repeater signal is higher than the call stability strength. Repeater signal determination device characterized in that it determines whether the signal transmitted through. The method of claim 18, The signal determination unit And a repeater signal determining apparatus, wherein the predicted repeater signal is determined to be a signal transmitted through a repeater when the strength of the expected repeater signal is higher than a call stability strength. The method of claim 17, The signal determination unit If the strength of the expected repeater signal is higher than the lowest threshold strength and there is a signal received from a sector other than the expected repeater signal, then the expected repeater signal is determined by whether the strength of the expected repeater signal is higher than the residual signal strength. Repeater signal determining device characterized in that it is determined whether the signal transmitted through The method of claim 20, The signal determination unit And a repeater signal determining apparatus, when the strength of the expected repeater signal is higher than the residual signal strength, the predicted repeater signal is determined as a signal transmitted through a repeater. The method of claim 21, The residual signal strength is Among the several sector signals of one base station, the strengths of the remaining signals except for the expected repeater signal, the average of the difference in signal strengths of the major and minor protrusions of the signals received from the multiple sectors of one base station, and the multiple sectors of one base station. Repeater signal determination device characterized in that the standard deviation of the difference in the signal strength of the main protrusion and the sub-projection of the received signal The method of claim 17, The minimum threshold strength may be set for each mobile communication environment and may be changed depending on the communication environment repeater signal determination device. The method of claim 18, The call stability may be set for each mobile communication environment and may be changed according to a communication environment. The method of claim 20, The residual signal strength may be set for each mobile communication environment and may be changed according to the communication environment. The method of claim 22, Among the several sector signals of the one base station, the strength of the remaining signals except for the expected repeater signal, the average of the signal strength difference between the major and minor protrusions of the signals received from the several sectors of the one base station, and the And a standard deviation of signal intensity differences between the main protrusions and the sub-projections of the signals received in the various sectors can be set for each mobile communication environment and can be changed according to the communication environment. The method of claim 16, The signal receiver determines whether a signal is transmitted from one or more base stations, and separates signals for each base station to obtain strength information and sector information of the transmitted signals.

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