JP2006166405A - Location information calculation system, repeater station, mobile communication terminal, program, recording medium, copy unit and location information calculation method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a location information calculation system or the like capable of calculating location information of a mobile communication terminal 20b with high location precision when positioning the mobile communication terminal 20b in a cell-based manner or a multiple base station positioning scheme while the mobile communication terminal 20b communicates with a repeater station 38 using a CDMA scheme. <P>SOLUTION: The repeater station 30 transmits a signal M30 resulting from combining a copy signal RC30 for which a signal received from a base station 10 is copied based on conditions inherent to the repeater station 30, and that original signal R30, and the mobile communication terminal 20b transmits predetermined positioning information INF regarding the original signal R30 and a signal group including the copy signal RC30. If it is judged based on the positioning information INF and a predetermined judgement criterion that the mobile communication terminal 20b is communicating with the repeater station 30, a positioning server 40 calculates location information of the mobile communication terminal 20b based on location information of the repeater station 30 and a predetermined positioning scheme. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a position information calculation system that calculates position information of a mobile communication terminal that performs mobile communication using a predetermined connection method, particularly a code division multiple access method.

  In recent years, it has been said that the ratio of emergency calls from mobile phones has increased rapidly (see Non-Patent Document 1). The operator of the command board that has received the emergency call first identifies the location of the caller in a conversation with the caller, and then begins a detailed hearing. However, in general, whistleblowers may be in geographically unfamiliar places, and even if they are not, it is difficult to tell the command desk where they are. There are many cases. For this reason, a system that can specify the location of the caller has already been established in the landline telephone.

  For example, in a command board in which an ISDN (Integrated Services Digital Network) line is installed as a connection line, a telephone directory database is created based on information in an existing telephone directory. When receiving an emergency call, know the caller's phone number using the caller's phone number display function, and use the phone number to search the phone book database to obtain the address of the caller and specify the location. Can do. If the whistleblower has not posted the subscriber information in the phone book or if the phone number is not set to notify, the subscriber information of the specified telecommunications carrier under the conditions stipulated in the Personal Information Protection Guidelines A database is used. In this case, the telephone number of the whistleblower is first obtained using the telephone number obtaining function, and then the address of the whistleblower is obtained by accessing the subscriber information database of the predetermined telecommunications carrier via the network. The position can be specified.

  On the other hand, a mechanism that can specify the location of the caller has not been realized on a mobile phone. As described above, the rate of emergency calls from mobile phones is rapidly increasing, and early realization of the function of obtaining the location information of the caller in emergency calls from mobile phones is expected. For this reason, efforts have been made in recent years to location information providing services by mobile phone operators. The location information providing service includes a service in which the mobile phone user himself uses location information and a service in which a third party uses the location information of the mobile phone user. Services that use the location information of mobile phone users by third parties include services that notify the location information obtained by mobile phone users by positioning themselves, and requests from third parties. There is a service for notifying a third party of position information obtained by positioning a mobile phone user. The latter includes a service in which an elderly caregiver or the like searches for a user's location, a location information notification service in an emergency call, and the like.

  Various technical conditions are required to perform a location information notification service in an emergency call from a mobile phone. For example, there is a positioning method in matters relating to the network of a mobile phone operator, and a GPS (Global Positioning System) positioning method is provided as a basic method. However, since GPS positioning may not be sufficiently performed, it is assumed that one or more of a plurality of base station positioning methods and a cell-based positioning method is provided as an alternative method. The multiple base station positioning method is a method for calculating a position based on synchronization signals from three or more base stations, and the use environment is assumed to be in the city or indoors, and the positioning accuracy is considered to be several tens to several hundreds of meters. Yes. The cell-based positioning method is a method of calculating the position from the information of the cell of the base station to which the mobile communication terminal is connected, and the use environment is such as GPS positioning and multiple base station positioning methods such as indoor or underground mall The place where it cannot be assumed is assumed, and the positioning accuracy is considered to be about several hundred m to 10 km.

  In recent years, mobile phone operators are proceeding with the installation of repeater stations having a function of relaying radio waves in order to fill a dead zone in a service area of a base station. FIG. 15 shows a position information calculation system 6 in a conventional Code Division Multiple Access (CDMA) system using a repeater station. In FIG. 15, reference numeral 12 is a packet communication network, 10 is a base station connected to the packet communication network 12, SA10 is a service area of the base station 10, 20a is a mobile communication terminal that performs mobile communication with the base station 10, and 38. Is a repeater station connected to the base station 10 in a wired or wireless manner, SA 38 is a service area of the repeater station 38, 20 b is a mobile communication terminal that performs mobile communication with the repeater station 38, and 40 is connected to the packet communication network 12 to move. This is a positioning server that measures the position of the body communication terminal 20a and the like. The positioning server 40 may be connected to the packet communication network 12 via the Internet (not shown).

  Next, a case where positioning is performed by the cell-based positioning method or the multiple base station positioning method in the situation shown in FIG. 15 will be described. As shown in FIG. 15, the mobile communication terminal 20a transmits the identifier of the base station 10 to the positioning server 40 via the base station 10, the packet communication network 12, and the Internet. In the CDMA system, the identifier of the base station 10 is a spreading code generally used with the base station 10, for example, a pseudo noise (PN) code. The positioning server 40 calculates the position of the mobile communication terminal 20a as a predetermined position (such as the center of gravity of the service area SA10) assumed from the service area SA10 of the base station 10 based on the transmitted identifier of the base station 10.

Ministry of Internal Affairs and Communications Information and Communication Council, Information and Communication Technology Subcommittee, Emergency Call Function Advancement Committee, “Technical Conditions for Caller Location Information Notification Function for Emergency Calls from Mobile Phones”, [online] Materials (information communication news materials), [October 27, 2004 search], Internet <URL: http: //www.soumu.go.jp/s-news/2004/pdf/040517_3_b1.pdf>

  On the other hand, when the mobile communication terminal 20b is positioned by the cell-based positioning method or the multiple base station positioning method, the following problems occur. As shown in FIG. 15, the mobile communication terminal 20 b communicates directly with the repeater station 38. Since the repeater station 38 relays the radio wave of the base station 10 as it is, and therefore uses the same spreading code as the base station 10, the mobile communication terminal 20b side is the base station 10 or the repeater that is directly communicating. The station 38 cannot be determined. For this reason, the mobile communication terminal 20b transmits the identifier of the base station 10 to the positioning server 40 via the repeater station 38, the base station 10, the packet communication network 12, and the Internet. As a result, the positioning server 40 calculates the position of the mobile communication terminal 20b as a predetermined position assumed from the service area SA10 of the base station 10 based on the transmitted identifier of the base station 10. As described above, when the positioning of the mobile communication terminal 20b communicating with the repeater station 38 by the CDMA method is performed by the cell-based positioning method or the multiple base station positioning method, the calculated position accuracy may be extremely deteriorated. There was a problem that there was.

  Therefore, an object of the present invention is to solve the above-described problem. When the mobile communication terminal 20b communicates with the repeater station 38 by the CDMA method, the positioning of the mobile communication terminal 20b is performed in the cell. An object of the present invention is to provide a position information calculation system or the like that can calculate the position information of the mobile communication terminal 20b with high position accuracy even when performing the base positioning method or the multiple base station positioning method.

The position information calculation system according to the present invention is a position information calculation system for calculating position information of a mobile communication terminal that performs mobile communication using a predetermined connection method, wherein the position of the mobile communication terminal is set to a predetermined positioning method. A positioning server that performs positioning based on the positioning server, a base station connected to the positioning server via a network, and a repeater station that is connected to the base station and relays between the mobile communication terminals, the repeater station comprising: And a means for transmitting a duplicated signal and a signal to be duplicated, which are duplicated by a duplicating unit based on conditions specific to the repeater station, and the mobile communication terminal is a separate receiving unit. Positioning information transmitting means for transmitting predetermined positioning information related to the signal to be replicated and the signal group including the replicated signal obtained from the signals received by each of the positioning server, the positioning server, Positioning information receiving means for receiving the positioning information transmitted by the positioning information transmitting means via the network; positioning information received by the positioning information receiving means and a predetermined criterion; Determining means for determining whether or not communication is performed with a station, and when the determination means determines that the mobile communication terminal is communicating with the repeater station, the position information of the repeater station and the predetermined positioning And calculating means for calculating the position information of the mobile communication terminal based on the method.
The position information calculation system according to the present invention is a position information calculation system for calculating position information of a mobile communication terminal that performs mobile communication using a predetermined connection method, wherein the position of the mobile communication terminal is set to a predetermined positioning method. A positioning server that performs positioning based on the positioning server, a base station connected to the positioning server via a network, and a repeater station that is connected to the base station and relays between the mobile communication terminals, the repeater station comprising: And a means for transmitting a duplicated signal and a duplicated signal obtained by duplicating the signal transmitted from the mobile communication terminal by a duplicating unit based on conditions specific to the repeater station, and the base station Positioning information transmitting means for transmitting predetermined positioning information related to the replicated signal obtained from inside and a signal group including the replicated signal, and the positioning server includes the positioning information transmitting means. Positioning information receiving means for receiving the received positioning information via the network, and based on the positioning information received by the positioning information receiving means and a predetermined criterion, the mobile communication terminal communicates with the repeater station. A determination means for determining whether or not the mobile communication terminal is communicating with the repeater station by the determination means, and the movement based on the position information of the repeater station and the predetermined positioning method. And a calculation means for calculating position information of the body communication terminal.

  Here, in the position information calculation system according to the present invention, the conditions unique to the repeater station are a condition for delaying the duplicated signal by a delay time unique to the repeater station, and a condition unique to the repeater station for the duplicated signal. Including one or more conditions for giving an intensity ratio, and a condition for giving a phase difference specific to the repeater station to the replicated signal, and the predetermined positioning information includes an intensity ratio of each signal in the signal group to the replicated signal, Including one or more of a delay time or a phase difference, the predetermined criterion is that the intensity ratio to the replicated signal included in the positioning information depends on the content of the condition specific to the repeater station. A reference that is a specific intensity ratio, a reference that has a delay time with respect to a replicated signal included in the positioning information that is the same as a delay time that is specific to the repeater station, and a replicated signal included in the positioning information When one or more of the criteria that the phase difference is the same as the phase difference specific to the repeater station is satisfied, the mobile communication terminal shall be a criterion for determining that the mobile station is communicating with the repeater station Can do.

  Here, in the position information calculation system of the present invention, one or more repeater stations can be connected to the base station.

  Here, in the position information calculation system of the present invention, the position information of the mobile communication terminal calculated by the calculation means is used when calculating the latitude and longitude information of the mobile communication terminal and the position information. Position information for transmitting the position information of the mobile communication terminal calculated by the calculation means to the mobile communication terminal, including information on the satellite in the satellite positioning system and the identifier of the base station. The mobile communication terminal may further include a terminal-side calculation unit that newly calculates position information based on the position information transmitted by the position information transmission unit within a predetermined range.

  Here, in the position information calculation system according to the present invention, the duplication unit can be installed at any one of the repeater station, the base station, or a connection between the repeater station and the base station.

  Here, in the position information calculation system of the present invention, the predetermined positioning method may be a cell-based positioning method or a multiple base station positioning method.

  Here, in the position information calculation system of the present invention, the predetermined connection method may be a code division multiple access method.

  Here, the position information calculation system according to the present invention can further comprise monitoring means for monitoring the operation of the repeater station based on the determination result of the determination means.

  A repeater station according to the present invention is a repeater station in a position information calculation system that calculates position information of a mobile communication terminal that performs mobile communication using a predetermined connection method, and the position information calculation system includes the position information calculation system of the mobile communication terminal. A positioning server for positioning the position based on a predetermined positioning method; and a base station connected to the positioning server via a network. The repeater station is connected to the base station and connected to the mobile communication terminal. And a means for transmitting a duplicated signal and a duplicated signal obtained by duplicating a signal transmitted from the base station based on a condition specific to the repeater station, based on conditions unique to the repeater station, It is obtained from signals received by separate receiving units of the mobile communication terminal, and the mobile communication terminal performs a predetermined measurement on the signal to be copied and the signal group including the duplicate signal. Information is transmitted, the positioning information is received by the positioning server via the network, and the mobile communication terminal communicates with the repeater station by the positioning server based on the positioning information and a predetermined criterion. If it is determined that the mobile communication terminal is communicating with the repeater station, the position information of the mobile communication terminal is determined based on the position information of the repeater station and the predetermined positioning method. Is calculated.

  A repeater station according to the present invention is a repeater station in a position information calculation system that calculates position information of a mobile communication terminal that performs mobile communication using a predetermined connection method, and the position information calculation system includes the position information calculation system of the mobile communication terminal. A positioning server for positioning the position based on a predetermined positioning method; and a base station connected to the positioning server via a network. The repeater station is connected to the base station and connected to the mobile communication terminal. Means for transmitting a duplicated signal and a signal to be duplicated, which are duplicated by a duplicating unit based on conditions specific to the repeater station, relaying between the mobile communication terminals, Positioning information related to the copied signal obtained from the received signal and a signal group including the duplicated signal is transmitted, and the positioning information is transmitted to the positioning via the network. And the positioning server determines whether or not the mobile communication terminal is communicating with the repeater station based on the positioning information and a predetermined criterion, and the mobile communication terminal When it is determined that communication is performed with a station, the position information of the mobile communication terminal is calculated based on the position information of the repeater station and the predetermined positioning method.

  Here, in the repeater station according to the present invention, the condition unique to the repeater station is a condition for delaying the duplicated signal by a delay time unique to the repeater station, and an intensity ratio unique to the repeater station to the duplicated signal. And the predetermined positioning information includes an intensity ratio of each signal in the signal group to a replicated signal, a delay time, and a delay time. Or including at least one of phase differences, and the predetermined criterion is that the intensity ratio with respect to the replicated signal included in the positioning information is specific to the repeater station according to the content of the condition specific to the repeater station. A reference that is an intensity ratio, a reference that is the same as the delay time specific to the repeater station, and a phase difference with respect to the replicated signal included in the positioning information is the delay time for the replicated signal included in the positioning information. If more than one of the criteria is the same as the specific phase difference to the serial repeater station is satisfied, it can be assumed the mobile communication terminal is a reference to determine that it is communicating with the repeater station.

  Here, in the repeater station of the present invention, one or more repeater stations can be connected to the base station.

  Here, in the repeater station according to the present invention, the position information of the mobile communication terminal calculated by the positioning server includes the latitude and longitude information of the mobile communication terminal and the satellite used when calculating the position information. Information on the satellite in the positioning system and the identifier of the base station, the position information is transmitted to the mobile communication terminal, and based on the position information transmitted by the mobile communication terminal within a predetermined range The position information can be newly calculated.

  Here, in the repeater station according to the present invention, the duplication unit may be installed at any one of the repeater station, the base station, or a connection between the repeater station and the base station.

  Here, in the repeater station of the present invention, the predetermined positioning method may be a cell-based positioning method or a multiple base station positioning method.

  Here, in the repeater station according to the present invention, the predetermined connection method may be a code division multiple access method.

  Here, in the repeater station according to the present invention, the positioning server may further include monitoring means for monitoring the operation of the repeater station based on the determination result of the positioning server.

  The mobile communication terminal of the present invention is a mobile communication terminal in a position information calculation system that calculates position information of a mobile communication terminal that performs mobile communication using a predetermined connection method, and the position information calculation system A positioning server for positioning the position of the mobile communication terminal based on a predetermined positioning method, a base station connected to the positioning server via a network, and relaying between the base station and the mobile communication terminal A repeater station for transmitting a signal transmitted from the base station and a signal to be replicated, which is duplicated by a duplicating unit based on conditions specific to the repeater station, and a signal to be replicated. The terminal includes positioning information transmission means for transmitting predetermined positioning information related to the copied signal and the signal group including the duplicated signal obtained from signals received by separate receiving units, The positioning information transmitted by the positioning information transmitting means is received by the positioning server via the network, and the mobile communication terminal makes the repeater station use the positioning server based on the positioning information and a predetermined criterion. If the mobile communication terminal is determined to be communicating with the repeater station, the mobile communication terminal is determined based on the position information of the repeater station and the predetermined positioning method. The position information is calculated.

  A mobile communication terminal according to the present invention is a mobile communication terminal in a position information calculation system that calculates position information of a mobile communication terminal that performs mobile communication using a predetermined connection method, and the position information calculation system A positioning server for positioning the position of the mobile communication terminal based on a predetermined positioning method, a base station connected to the positioning server via a network, and relaying between the base station and the mobile communication terminal A repeater station for transmitting a signal transmitted from the mobile communication terminal and a signal to be replicated, which is duplicated by a duplicating unit based on conditions unique to the repeater station, and a signal to be replicated, The station includes positioning information transmitting means for transmitting predetermined positioning information related to the copied signal obtained from the received signals and the signal group including the duplicated signal, and the positioning information transmitting means The transmitted positioning information is received by the positioning server via the network, and whether the mobile communication terminal is communicating with the repeater station by the positioning server based on the positioning information and a predetermined criterion. If it is determined that the mobile communication terminal is communicating with the repeater station, the position information of the mobile communication terminal is calculated based on the repeater station position information and the predetermined positioning method. It is characterized by being.

  Here, in the mobile communication terminal according to the present invention, the conditions unique to the repeater station are a condition for delaying the duplicated signal by a delay time unique to the repeater station, and a condition unique to the repeater station for the duplicated signal. Including one or more conditions for giving an intensity ratio, and a condition for giving a phase difference specific to the repeater station to the replicated signal, and the predetermined positioning information includes an intensity ratio of each signal in the signal group to the replicated signal, Including one or more of a delay time or a phase difference, the predetermined criterion is that the intensity ratio with respect to the replicated signal included in the positioning information is determined by the repeater station according to the content of the condition specific to the repeater station. A reference that is an inherent intensity ratio, a reference that has the same delay time as the delay time that is specific to the repeater station, and a phase that is included in the positioning information. Can be a criterion for determining that the mobile communication terminal is communicating with the repeater station if one or more of the criteria that are the same as the phase difference inherent in the repeater station are satisfied. .

  Here, in the mobile communication terminal of the present invention, one or more repeater stations can be connected to the base station.

  Here, in the mobile communication terminal of the present invention, the location information of the mobile communication terminal calculated by the positioning server is used when calculating the latitude and longitude information of the mobile communication terminal and the location information. Information relating to the satellite in the satellite positioning system and the identifier of the base station, the position information is transmitted to the mobile communication terminal, and the mobile communication terminal is transmitted by the position information transmitting means within a predetermined range. Terminal side calculation means for newly calculating position information based on the transmitted position information can be further provided.

  Here, in the mobile communication terminal of the present invention, the duplicating unit can be installed at any one of the repeater station, the base station, or a connection between the repeater station and the base station.

  Here, in the mobile communication terminal of the present invention, the predetermined positioning method may be a cell-based positioning method or a multiple base station positioning method.

  Here, in the mobile communication terminal system of the present invention, the predetermined connection method may be a code division multiple access method.

  Here, in the mobile communication terminal of the present invention, the positioning server can further include monitoring means for monitoring the operation of the repeater station based on the determination result of the positioning server.

  A program according to the present invention is a program for positioning a position of a mobile communication terminal in a position information calculation system for calculating position information of a mobile communication terminal that performs mobile communication using a predetermined connection method based on a predetermined positioning method. The position information calculation system is a repeater station that relays between a base station connected to the positioning server via a network and the base station connected to the mobile communication terminal. A signal transmitted from a station is transmitted from a signal that is duplicated by a duplicating unit based on conditions specific to the repeater station and a signal to be copied, and a signal received by a separate receiving unit. A mobile communication terminal that transmits predetermined positioning information related to the signal to be replicated and a signal group including the replicated signal, and the computer of the positioning server transmits the positioning information Positioning information receiving means for receiving the positioning information transmitted by the means via the network, positioning information received by the positioning information receiving means and a predetermined criterion, the mobile communication terminal communicates with the repeater station. Determining means for determining whether or not the mobile communication terminal is communicating with the repeater station by the determining means, based on the position information of the repeater station and the predetermined positioning method It is a program for functioning as calculation means for calculating position information of a body communication terminal.

  A program according to the present invention is a program for positioning a position of a mobile communication terminal in a position information calculation system for calculating position information of a mobile communication terminal that performs mobile communication using a predetermined connection method based on a predetermined positioning method. The position information calculation system is a repeater station that relays between the base station connected to the positioning server via a network and the mobile station connected to the base station. A signal transmitted from a body communication terminal is transmitted by a duplicating unit based on conditions specific to the repeater station, and a signal to be replicated is transmitted. Transmitting predetermined positioning information regarding the obtained signal to be replicated and the signal group including the replicated signal, and the computer of the positioning server to the positioning information transmitting means Positioning information receiving means for receiving the positioning information transmitted via the network, positioning information received by the positioning information receiving means and predetermined judgment criteria, the mobile communication terminal communicates with the repeater station Determining means for determining whether or not the mobile communication terminal is communicating with the repeater station by the determining means, based on the position information of the repeater station and the predetermined positioning method It is a program for functioning as a calculation means for calculating position information of a communication terminal.

  Here, in the program of the present invention, the conditions specific to the repeater station are the conditions for delaying the replicated signal by a delay time specific to the repeater station, and the intensity ratio specific to the repeater station to the replicated signal. Including one or more conditions for giving a phase difference specific to the repeater station to the replicated signal, and the predetermined positioning information includes an intensity ratio of each signal to the replicated signal in the signal group, a delay time, or Including one or more phase differences, and the predetermined criterion is an intensity ratio with respect to a replicated signal included in the positioning information according to the content of a condition specific to the repeater station. A reference that is a ratio, a delay time with respect to a replicated signal included in the positioning information is the same as a delay time specific to the repeater station, and a phase difference with respect to the replicated signal included in the positioning information is Is satisfied one or more of the criteria are the same as specific phase difference to the serial repeater station can the mobile communication terminal is assumed to be the criterion assumed to be communicating with the repeater station.

  Here, in the program of the present invention, one or more repeater stations can be connected to the base station.

  Here, in the program of the present invention, the position information of the mobile communication terminal calculated by the calculation means includes the latitude and longitude information of the mobile communication terminal, and the satellite positioning used when calculating the position information. A positioning information transmitting means for transmitting the position information of the mobile communication terminal calculated by the calculating means to the mobile communication terminal, including information relating to a satellite in the system and an identifier of the base station; In addition, the mobile communication terminal can calculate new position information based on the position information transmitted by the position information transmitting means within a predetermined range.

  Here, in the program of the present invention, the duplicating unit can be installed at any one of the repeater station, the base station, or a connection between the repeater station and the base station.

  Here, in the program of the present invention, the predetermined positioning method may be a cell-based positioning method or a multiple base station positioning method.

  Here, in the program of the present invention, the predetermined connection method may be a code division multiple access method.

  Here, the program of the present invention can further comprise monitoring means for monitoring the operation of the repeater station based on the determination result of the determination means.

  The recording medium of the present invention is a computer-readable recording medium on which any program of the present invention is recorded.

  The duplication unit according to the present invention is a duplication unit used in a position information calculation system that calculates position information of a mobile communication terminal that performs mobile communication using a predetermined connection method, and the position information calculation system includes the mobile communication terminal. Positioning server that measures the position of a terminal based on a predetermined positioning method, a base station connected to the positioning server via a network, and a repeater that relays between the base station and the mobile communication terminal And the duplication unit generates a delay signal obtained by delaying the signal transmitted from the base station by a delay time specific to the repeater station, and the delayed signal and the delayed signal are the repeater station. Is transmitted as a duplicate signal and a signal to be duplicated, and the signal to be duplicated is obtained from signals respectively received by separate receiving units of the mobile communication terminal, and the duplicated signal is obtained by the mobile communication terminal. Is transmitted to the positioning server via the network, and the positioning server uses the positioning information and a predetermined determination criterion. On the basis of whether the mobile communication terminal is communicating with the repeater station, and if it is determined that the mobile communication terminal is communicating with the repeater station, the position information of the repeater station and the The position information of the mobile communication terminal is calculated based on a predetermined positioning method.

  The duplication unit according to the present invention is a duplication unit used in a position information calculation system that calculates position information of a mobile communication terminal that performs mobile communication using a predetermined connection method, and the position information calculation system includes the mobile communication Positioning server that measures the position of a terminal based on a predetermined positioning method, a base station connected to the positioning server via a network, and a repeater that relays between the base station and the mobile communication terminal The duplication unit generates a delayed signal obtained by delaying the signal transmitted from the mobile communication terminal by a delay time specific to the repeater station, and the delayed signal and the delayed signal are the A repeater station transmits a duplicate signal and a replicated signal, and the base station transmits predetermined positioning information related to the replicated signal and a signal group including the duplicated signal. Is received by the positioning server via a network, and the positioning server determines whether the mobile communication terminal is communicating with the repeater station based on the positioning information and a predetermined determination criterion. When it is determined that the communication terminal is communicating with the repeater station, the position information of the mobile communication terminal is calculated based on the position information of the repeater station and the predetermined positioning method.

  Here, in the duplicating unit of the present invention, the condition unique to the repeater station is a condition for delaying the duplicated signal by a delay time unique to the repeater station, and an intensity ratio unique to the repeater station to the duplicated signal. And the predetermined positioning information includes an intensity ratio of each signal in the signal group to a replicated signal, a delay time, and a delay time. Or including at least one of phase differences, and the predetermined criterion is that the intensity ratio with respect to the replicated signal included in the positioning information is specific to the repeater station according to the content of the condition specific to the repeater station. A reference that is an intensity ratio, a reference that has a delay time with respect to a replicated signal included in the positioning information that is the same as a delay time that is specific to the repeater station, and a phase difference with respect to the replicated signal that is included in the positioning information is If more than one of the criteria is the same as the specific phase difference Peter station is satisfied, it can be assumed the mobile communication terminal is a reference to determine that it is communicating with the repeater station.

  Here, in the duplicating unit of the present invention, one or more repeater stations can be connected to the base station.

  Here, in the duplication unit of the present invention, the position information of the mobile communication terminal calculated by the positioning server includes the latitude and longitude information of the mobile communication terminal, and the satellite used when calculating the position information. Information on the satellite in the positioning system and the identifier of the base station, the position information is transmitted to the mobile communication terminal, and the mobile communication terminal newly adds a new range based on the position information within a predetermined range. The position information can be calculated.

  Here, in the duplicating unit of the present invention, the duplicating unit can be installed at any one of the repeater station, the base station, or a connection between the repeater station and the base station.

  Here, in the duplicating unit of the present invention, the predetermined positioning method may be a cell-based positioning method or a multiple base station positioning method.

  Here, in the duplication unit of the present invention, the predetermined connection method may be a code division multiple access method.

  Here, in the duplicating unit of the present invention, the positioning server may further include monitoring means for monitoring the operation of the repeater station based on the determination result of the positioning server.

  The position information calculation method of the present invention is a position information calculation method for calculating position information of a mobile communication terminal that performs mobile communication by a predetermined connection method, and the position of the mobile communication terminal is set to a predetermined positioning method. A positioning server that performs positioning based on the base station connected to the positioning server via a network, and a repeater station that is connected to the base station and relays between the mobile communication terminals, A repeater station that transmits a duplicated signal and a duplicated signal obtained by duplicating the signal transmitted from the base station by a duplicating unit based on conditions unique to the repeater station; A positioning information transmitting step for transmitting predetermined positioning information related to the signal group including the copied signal and the duplicated signal obtained from signals received by the receiving unit; and the positioning server Positioning information receiving step for receiving the positioning information transmitted in the positioning information transmitting step via the network; positioning information received in the positioning information receiving step and a predetermined criterion; A determination step of determining whether or not communication is performed with a station, and if it is determined in the determination step that the mobile communication terminal is communicating with the repeater station, the position information of the repeater station and the predetermined positioning And a calculation step of calculating the position information of the mobile communication terminal based on the method.

  The position information calculation method of the present invention is a position information calculation method for calculating position information of a mobile communication terminal that performs mobile communication using a predetermined connection method, and the position of the mobile communication terminal is changed to a predetermined positioning method. A positioning server that performs positioning based on the base station connected to the positioning server via a network, and a repeater station that is connected to the base station and relays between the mobile communication terminals, A step in which a repeater station transmits a duplicated signal and a signal to be duplicated, which are duplicated by a duplicating unit based on a condition specific to the repeater station, and a signal received from the mobile communication terminal; A positioning information transmission step for transmitting predetermined positioning information related to the signal to be replicated obtained from the signal and a signal group including the replicated signal; and the positioning server, the positioning information transmission step. A positioning information receiving step for receiving the positioning information transmitted by the network via the network, and the mobile communication terminal communicates with the repeater station based on the positioning information received in the positioning information receiving step and a predetermined criterion. A determination step for determining whether or not the mobile communication terminal is communicating with the repeater station in the determination step, based on the position information of the repeater station and the predetermined positioning method A calculating step of calculating position information of the mobile communication terminal.

  Here, in the position information calculation method according to the present invention, the conditions unique to the repeater station are a condition for delaying the duplicated signal by a delay time unique to the repeater station, and a condition unique to the repeater station for the duplicated signal. Including one or more conditions for giving an intensity ratio, and a condition for giving a phase difference specific to the repeater station to the replicated signal, and the predetermined positioning information includes an intensity ratio of each signal in the signal group to the replicated signal, Including one or more of a delay time or a phase difference, the predetermined criterion is that the intensity ratio to the replicated signal included in the positioning information depends on the content of the condition specific to the repeater station. A reference that is a specific intensity ratio, a reference that has the same delay time as the delay time that is specific to the repeater station, and a position that is included in the positioning information It may be a criterion for determining that the mobile communication terminal is communicating with the repeater station when one or more of the criteria satisfying the difference is the same as the phase difference inherent to the repeater station. it can.

  Here, in the position information calculation method according to the present invention, one or more repeater stations can be connected to the base station.

  Here, in the position information calculation method according to the present invention, the position information of the mobile communication terminal calculated in the calculation step is used when calculating the latitude and longitude information of the mobile communication terminal and the position information. Position information including information on the satellite in the satellite positioning system and the identifier of the base station, and the positioning server transmits the position information of the mobile communication terminal calculated in the calculation step to the mobile communication terminal The mobile communication terminal may further include a terminal-side calculation step of calculating position information based on the position information transmitted in the position information transmission step within a predetermined range.

  Here, in the position information calculation method according to the present invention, the duplication unit can be installed at any one of the repeater station, the base station, or a connection between the repeater station and the base station.

  Here, in the position information calculation method of the present invention, the predetermined positioning method may be a cell-based positioning method or a multiple base station positioning method.

  Here, in the position information calculation method according to the present invention, the predetermined connection method may be a code division multiple access method.

  Here, the position information calculation method of the present invention may further include a monitoring step of monitoring the operation of the repeater station based on the determination result of the determination step.

  According to the position information calculation system and the like of the present invention, a repeater station combines a signal received from a base station by a duplicating unit based on conditions unique to the repeater station and an original signal (a signal to be replicated). Send the signal. The mobile communication terminal transmits predetermined positioning information related to the signal to be copied and the signal group including the duplicated signal from among the signals of the combined signals received by the separate receivers. The positioning server receives the positioning information via the network. Based on the received positioning information and a predetermined criterion, it is determined whether or not the mobile communication terminal is communicating with the repeater station. When it is determined that the mobile communication terminal is communicating with the repeater station, the position information of the mobile communication terminal is calculated based on the position information of the repeater station and a predetermined positioning method. As a result, it can be determined that the mobile communication terminal is located within the service area of the repeater station. On the other hand, when it is not determined that the mobile communication terminal is communicating with the repeater station, that is, when a duplicate radio wave is not found, based on the position information of the base station and a predetermined positioning method, the position information of the mobile communication terminal Is calculated. As a result, it can be determined that the mobile communication terminal is located within the base station service area. As described above, when the mobile communication terminal communicates with the repeater station by the CDMA method, even if the mobile communication terminal is positioned by the cell-based positioning method or the multiple base station positioning method, the position accuracy is high. There is an effect that the position information of the mobile communication terminal can be calculated.

  The duplication unit or the like can be set on the upstream side (from the mobile communication terminal to the base station via the repeater station) in communication between the base station and the mobile communication terminal. In this case, there is an effect that the positioning server can monitor the operation of the repeater station based on the determination result after calculating the position information of the mobile communication terminal.

  Hereinafter, each embodiment will be described in detail with reference to the drawings.

  FIG. 1 shows a position information calculation system 1 when a predetermined connection method in the first embodiment of the present invention is used. The CDMA system is suitable as the predetermined connection system. However, the base station is not limited to the CDMA system as long as it is a time-synchronized connection system in which the base stations synchronize with each other. In FIG. 1, reference numeral 12 denotes a packet communication network, 10 denotes a base station connected to the packet communication network 12, SA10 denotes a service area of the base station 10, G10 denotes a center of gravity of the service area SA10, and U10 denotes a base station in the service area SA10. 10 is a mobile communication terminal that performs mobile communication with the base station 10, Pa is an actual position of the mobile communication terminal 20a in the service area SA10, and La is a position between the base station 10 and the mobile communication terminal 20a. Is the distance between. Reference numeral 30 denotes a repeater station connected to the base station 10 by wire or wirelessly and having a function of relaying between the mobile communication terminals 20b, SA30 is a service area of the repeater station 30, G30 is a center of gravity position of the service area SA30, U30 Is the position immediately below the repeater station 30 in the service area SA30, 20b is a mobile communication terminal that performs mobile communication with the repeater station 30, Pb is the actual position of the mobile communication terminal 20b in the service area SA30, and Lb is the repeater station 30. This is the distance from the mobile communication terminal 20b. Reference numeral 40 denotes a positioning server connected to the packet communication network 12 for positioning the position of the mobile communication terminal 20a and the like. The positioning server 40 may be connected to the packet communication network 12 via the Internet (not shown).

  As shown in FIG. 1, the repeater station 30 synthesizes a duplicate signal RC30 obtained by duplicating a signal transmitted from the base station 10 based on conditions unique to the repeater station 30 and an original signal (replicated signal) R30. The signal M30 (described later, see FIG. 3) is transmitted. Specifically, the signal R30 transmitted from the base station 10 is branched at the branch point 33, and the duplicate signal RC30 duplicated through the duplication unit 31 side and the original signal R30 are synthesized at the synthesis point 34 and synthesized. The signal M30 is transmitted from the transmission / reception unit 32. The transmission / reception unit 32 may be referred to as a repeater station in a narrow sense. On the other hand, the repeater station 30 can be said to be a broadly defined repeater station in which the repeater station 32 in the narrow sense and the duplicating unit 31 are combined. The repeater station 30 in a broad sense makes a duplicate signal RC30 and an original signal R30 obtained by duplicating the signal transmitted from the base station 10 by the duplicating unit 31 based on conditions unique to the repeater station 30 in the broad sense or the repeater station 32 in the narrow sense. In other words, the function of transmitting the synthesized signal M30 may be provided. As shown in FIG. 1, the duplicating unit 31 can be installed in the vicinity of the repeater station 32 in the narrow sense in the repeater station 30 in the broad sense, but can also be incorporated in the repeater station 32 in the narrow sense. The broad-sense repeater station 30 may be a casing including a duplicating section 31 and a narrow-sense repeater station 32. In the following description of the first embodiment, the repeater station refers to the repeater station 30 in a broad sense, unless otherwise specified.

  The conditions unique to the repeater station 30 described above are the condition 1 for delaying the duplicated signal R30 by the delay time D30 unique to the repeater station 30, and the intensity ratio r unique to the repeater station 30 with respect to the duplicated signal R30. One or more of the condition 2 to be given and the condition 3 to give the phase difference θ inherent to the repeater station 30 to the copied signal R30 can be included. That is, any one of the conditions 1 to 3 may be set, any two conditions 1 to 3 may be set, or all the three conditions 1 to 3 may be set. Of course, other conditions 1 to 3 may be included. The duplicating unit 31 can use any delay circuit as long as it can delay the signal by the delay time D30 unique to the repeater station 30 with respect to the condition 1. Similarly, the duplicating unit 31 can use any circuit as long as it can give the signal the intensity ratio r and phase difference θ inherent to the repeater station 30 with respect to the conditions 2 and 3. In the following, for convenience of explanation, unless otherwise specified, only the above condition 1 (with delay time) is selected as a condition unique to the repeater station 30. Accordingly, the intensity ratio r is 1 and the phase difference θ is 0. As a delay circuit used by the duplicating unit 31, a delay cable that can take out an input signal with a delay time D30 can be used. In this case, if the capacitance per unit length of the delay cable is C and the inductance is L, the delay time is the square root of (L × C), so that D30 = (L × C) square root. What is necessary is just to determine the inductance L and the electrostatic capacitance C. As another delay circuit, a lumped constant circuit using a constant K filter or an induction m filter may be used. Alternatively, as the delay circuit, it is also possible to use a circuit that uses an ultrasonic wave that once converts the signal into an ultrasonic wave, propagates in a transmission medium such as glass or nickel for a certain period (delay time D30), and takes it out again as an electrical signal it can.

  Next, functions on the mobile communication terminals 20a and 20b will be described. In FIG. 1, reference numeral 21 denotes a functional block of the mobile communication terminal 20b or the like. As shown in the functional block 21, the mobile communication terminal 20b or the like uses the original signal R30 (replicated signal) and the duplicated signal obtained from signals received by separate receiving units (not shown). Positioning information transmission unit 22 (positioning information transmission means) for transmitting predetermined positioning information INF (described later, see FIG. 3) relating to a signal group including the signal group (signal RC30 and reflected wave delayed from original signal R30). . The positioning information INF includes one or more of a delay time D30, an intensity ratio r, or a phase difference θ of each signal in the signal group with respect to the replicated signal R30. The conditions can be set in advance by the position information calculation system 1, or can be specified in the header portion of the signal received by the mobile communication terminal 20b or the like. In general, radio waves (direct waves) transmitted from the repeater station 30 may be reflected by a building or the like, and the reflected waves may be received by the mobile communication terminal 20b together with the direct waves. For this reason, in the CDMA system, a plurality of receivers (reception units) are prepared in one mobile communication terminal 20b, etc., and each receiver independently receives a direct wave and a reflected wave due to multipath propagation, By combining these, path diversity is performed to improve the reception level. In the present invention, the original signal R30 and the signal RC30 duplicated (delayed) from the original signal R30 are received using a plurality of receivers prepared for the purpose of path diversity. Of course, signals received by a plurality of receivers may also include reflected waves due to multipath propagation. Therefore, as will be described later, in order to determine whether the signal RC30 is duplicated on the positioning server 40 side or the reflected wave due to multipath propagation, the positioning information transmission unit 22 duplicates the received original signal R30. Predetermined positioning information INF is obtained for a signal group including the signal RC30 (including a reflected wave by multipath propagation). That is, the delay time D30, the intensity ratio r or the phase difference θ of each signal in the signal group with respect to the replicated signal R30 is obtained. The positioning information transmission unit 22 transmits positioning information INF including the intensity of each signal and the delay times.

  FIG. 2A is a graph showing the relationship between the signal transmitted from the base station 10 and the signal received by the mobile communication terminal 20a. In FIG. 2A, the vertical axis represents signal intensity (bit energy (Eb) / noise power spectral density (Io)), and the horizontal axis represents time. In FIG. 2A, reflected waves due to multipath propagation are omitted for convenience of explanation. Since the mobile communication terminal 20a communicates directly with the base station 10, as shown in FIG. 2 (A), after the delay time D-La of the distance La from the transmission signal R10 of the base station 10, the transmission signal A signal R20a having an intensity S20a that has become somewhat weaker than the intensity S10 of R10 is received. On the other hand, FIG. 2B is a graph showing the relationship between the signal transmitted from the repeater station 30 and the signal received by the mobile communication terminal 20b. In FIG. 2B, the vertical axis represents signal intensity (bit energy (Eb) / noise power spectral density (Io)), and the horizontal axis represents time. In FIG. 2B, for convenience of explanation, a reflected wave due to multipath propagation is omitted. As shown in FIG. 2B, the repeater station 30 transmits a composite signal M30 of the original signal R30 and a duplicate signal RC30 delayed by a delay time D30 unique to the repeater station 30. The mobile communication terminal 20b receives the original signal R30 as a signal R20b having an intensity S20b that has become somewhat weaker than the intensity S30 of the transmission signal R30 after a delay time D-Lb of the distance Lb with respect to the original signal R30. Further, the mobile communication terminal 20b sets the duplicate signal RC30 as the signal RC20b of the strength SC20b that has become weaker to the same degree as the strength S20b of the received signal R20b after the delay time D30 from the received signal R20b with respect to the duplicated signal RC30. Receive. In general, the intensity of a reflected wave due to multipath propagation tends to be lower than the intensity S20b of the signal R20b or the intensity SC20b of the RC 20b. Receiving a reflected wave due to multipath propagation having almost the same intensity S20b as the signal R20b after the signal R20b after the preset delay time D30 is unlikely to actually occur. Therefore, when a signal having the same intensity SC20b as the signal R20b is received after the delay time D30 set in advance after the signal R20b is received, the signal is very likely to be the signal RC20b, not a reflected wave due to multipath propagation. high. When the mobile communication terminal 20b is directly communicating with the base station 10, the duplicate signal RC20b (corresponding to the duplicate signal RC30) is received in the same manner as the mobile communication terminal 20a shown in FIG. There is no. Therefore, when the mobile communication terminal 20b receives the signal RC20b as shown in FIG. 2B, it can be considered that the mobile communication terminal 20b is communicating with the repeater station 30 instead of the base station 10. it can.

  FIG. 2C is a graph showing the relationship between the signal transmitted from the repeater station 30 and the signal received by the mobile communication terminal 20b when all of the conditions 1 to 3 are included. In FIG. 2C, the Q axis is the quadrature component of the signal, the I axis is the in-phase component of the signal, and the t axis is time. In FIG. 2C as well, for convenience of explanation, the reflected wave due to multipath propagation is omitted. As shown in FIG. 2C, the repeater station 30 delays the original signal R30k (intensity S30k) and the original signal R30k by a delay time D30 unique to the repeater station 30, and with respect to the original signal R30k. A composite signal M30 is transmitted with a replica signal RC30k (intensity SC30k) in which a unique phase difference θ30 is given to the repeater station 30 and a unique intensity ratio r30 is given to the repeater station 30 with respect to the original signal R30k. Here, the intensity ratio r30 = SC30k / S30k. The mobile communication terminal 20b receives the original signal R30k as a signal R20bk having an intensity S20bk that has become somewhat weaker than the intensity S30k of the transmission signal R30k after a delay time D-Lb of the distance Lb with respect to the original signal R30k. Further, the mobile communication terminal 20b sets the duplicate signal RC30k as the signal RC20bk of the strength SC20bk that has become weaker to the same degree as the strength S20bk of the received signal R20bk after a delay time of the delay time D30 from the received signal R20bk. Receive. Here, the intensity ratio between the intensity S20bk and the intensity SC20bk is r30, and the phase difference between the signal R20bk and the signal RC20bk is θ30. When a signal that satisfies the conditions 1 to 3 set in advance for the signal R20bk after receiving the signal R20bk, that is, a signal having the delay time D30, the intensity ratio r30, and the phase difference θ30 is received, the signal is a reflected wave due to multipath propagation. It is very likely that the signal RC20bk. When the mobile communication terminal 20b is directly communicating with the base station 10, the duplicate signal RC20bk is not received as with the mobile communication terminal 20a shown in FIG. Therefore, when the mobile communication terminal 20b receives the signal RC20bk satisfying the preset conditions 1 to 3 as shown in FIG. 2C, the mobile communication terminal 20b does not communicate with the base station 10 but the repeater station 30. Can be thought of as communicating. In Example 1 below, the replicated signal is R30k, the replicated signal is RC30k, the replicated signal received by the mobile communication terminal 20b is R20bk, the replicated signal received by the mobile communication terminal 20b is RC20bk, and the repeater When referring to the conditions specific to the station 30, the description will be made assuming that the conditions are 1 (delay time D30), 2 (intensity ratio r30), and 3 (phase difference θ30).

  Under the above description, returning to FIG. 1, the function of the positioning server 40 will be described. In FIG. 1, reference numeral 41 denotes a functional block of the positioning server 40. As shown in the function block 41, the positioning server 40 includes a positioning information receiving unit 42 (positioning information receiving unit), a determining unit 43 (determining unit), a calculating unit 44 (calculating unit), and a position information database 45. And. The location information database 45 includes an identifier of the base station 10 and the like, location information of a cell in which the base station 10 and the repeater station 30 and the like exist, an identifier of the repeater station 30 and the like connected to the base station 10 and the like, and a repeater station Condition 1 etc. specific to 30 etc. are recorded. When there are a plurality of repeater stations 30 etc. connected to the base station 10 etc., conditions 1 etc. specific to each repeater station 30 etc. are recorded separately. The positioning information receiving unit 42 receives the positioning information INF transmitted by the positioning information transmitting unit 22 via the Internet and a network such as the packet communication network 12. Since the received information is attached with the positioning information INF and the identifier of the base station 10 or the like that transmitted the positioning information INF as in the case of normal communication, the positioning server 40 determines which base station 10 the positioning information INF is. It is possible to determine whether it is transmitted from the network. The positioning information INF is as follows, for example, according to conditions 1 to 3 unique to the repeater station 30 described above.

(1) In case of only condition 1 (delayed by delay time D30) ((delay time D30 of duplicate signal RC30k), (delay time Dt of reflected wave))
(2) In the case of condition 1 and condition 2 (giving a specific intensity ratio) ((delay time D30 of duplicate signal Rc30k, intensity ratio r30), (delay time Dt of reflected wave, intensity ratio St))
(3) In the case of condition 1, condition 2 and condition 3 (giving a specific phase difference) ((delay time D30 of replica signal RC30k, intensity ratio r30, phase difference θ30), (delay time Dt of reflected wave, intensity ratio) St, phase difference θt))

  The determination unit 43 determines whether the mobile communication terminal 20b and the like are communicating with the repeater station 30 based on the positioning information INF received by the positioning information receiving unit 42 and a predetermined determination criterion (described later). When the determination unit 43 determines that the mobile communication terminal 20b or the like is communicating with the repeater station 30, the calculation unit 44 uses the position information of the repeater station 30 recorded in the position information database 45 and a predetermined positioning method. Based on this, position information of the mobile communication terminal 20b and the like is calculated. As the predetermined positioning method, a method predetermined by the position information calculation system 1 can be used, and for example, a cell-based positioning method can be used. As described in the background art, the cell-based positioning method is a method for calculating a position from information on a cell of the base station 10 to which the mobile communication terminal 20b is connected. As described above, the determination unit 43 can determine whether the station to which the mobile communication terminal 20b is connected is the base station 10 or the repeater station 30. When the determination unit 43 determines that the mobile communication terminal 20b or the like is communicating with the repeater station 30, the calculation unit 44 obtains cell information (position information) of the repeater station 30 from the position information database 45. The information of the cell where the mobile communication terminal 20b or the like is located, that is, the position information of the mobile communication terminal 20b or the like can be calculated.

  As described above, the positioning information INF includes the strength ratio r30 of the duplicate signal RC20bk received by the mobile communication terminal 20b to the duplicated signal R20bk, each delay time D30 for the delayed signal, and the like. The predetermined judgment criteria described above are as follows. First, the column of the corresponding base station 10 or the like is found from the position information database 45 using the identifier of the base station 10 or the like received together with the positioning information INF as a search key. Next, in accordance with conditions specific to the repeater station 30 and the like, a reference (condition 1) that the intensity ratio with respect to the replicated signal R20bk included in the positioning information INF is the intensity ratio r30 specific to the repeater station, the positioning information INF The phase difference with respect to the replicated signal R20bk included in the reference (condition 2) and the positioning information INF is the same as the delay time D30 inherent to the repeater station 30 and the like, and the phase difference with respect to the replicated signal R20bk included in the repeater station 30 It is determined whether or not one or more of the reference (condition 3) that is the same as the phase difference θ30 inherent to the second phase is satisfied, and if one or more is satisfied, the mobile communication terminal 20b communicates with the repeater station 30. Judge that it is. For example, when the condition unique to the repeater station 30 or the like is only the condition 1, the positioning information INF is ((delay time D30 of the duplicate signal RC20bk), (delay time Dt of the reflected wave)), so the duplicate signal RC20bk It is searched whether or not the same delay time as the delay time D30 is in the column of the base station 10 or the like searched earlier. When there is the same delay time D30, it is determined that the mobile communication terminal 20b is communicating with the repeater station 30 with the same delay time D30. As a result, it can be determined that the mobile communication terminal 20b is within the service area SA30 of the repeater station 30. Specifically, it can be determined that it exists at the position U30 or the gravity center position G30 immediately below the repeater station 30 in the service area SA30. When it is not determined that the mobile communication terminal 20b is communicating with the repeater station 30, that is, the same delay time as the delay time D30 of the duplicate signal RC20bk is not found in the column of the base station 10 or the like searched earlier. In the case where a plurality of repeater stations are connected to the base station 10 or the like, the other repeater stations are searched in the same manner as described above. If the same delay time as the delay time D30 of the duplicate signal RC20bk is not found in the column of the base station 10 or the like previously searched for all the repeater stations, the mobile communication terminal 20b is communicating with the base station 10. to decide. This is because the fact that the positioning information INF is transmitted from the base station 10 or the like is clear from the identifier of the base station 10 or the like received together as described above. As a result, the mobile communication terminal 20b can be determined to be within the service area SA10 of the base station 10. Specifically, it can be determined that it is present at the position U10 or the center-of-gravity position G10 of the base station 10 in the service area SA10.

  Similarly, when only the condition 2 is unique to the repeater station 30 or the like, first, the identifier of the base station 10 or the like received together with the positioning information INF is used as a search key to search for the corresponding base station 10 or the like from the position information database 45. Find the column. Since the positioning information INF is ((intensity ratio r30 of the duplicate signal RC20bk), (intensity ratio St of reflected wave St)), the column of the base station 10 or the like in which the same intensity ratio as the intensity ratio r30 of the duplicate signal RC20bk has been searched It is searched whether it exists in. If there is the same intensity ratio r30, it is determined that the mobile communication terminal 20b is communicating with the repeater station 30 having the same intensity ratio r30. If the same intensity ratio as the intensity ratio r30 of the duplicate signal RC20bk is not found in the previously searched base station 10 etc. column, and if a plurality of repeater stations are connected to the base station 10 etc., other repeater stations Is searched in the same manner as described above. If the same intensity ratio as the intensity ratio r30 of the duplicate signal RC20bk is not found in the column of the previously searched base station 10 or the like for all the repeater stations, the mobile communication terminal 20b is communicating with the base station 10. to decide. The same applies to the case where the condition unique to the repeater station 30 and the like is only condition 3, and the description is omitted.

  When there are a plurality of conditions unique to the repeater station 30 or the like, for example, in the case of the conditions 1 and 2 as well, first, the identifier of the base station 10 or the like received together with the positioning information INF is used as a search key to apply Find the column for the base station 10 or the like. Since the positioning information INF is ((delay time D30 of duplicate signal RC20bk, intensity ratio r30, (delay time Dt of reflected wave, intensity ratio St)), a set of delay time D30 and intensity ratio r30 of duplicate signal RC20bk It is searched whether or not the same combination of delay time and intensity ratio is in the searched base station 10 etc. column, that is, whether there is a repeater station that satisfies the conditions 1 and 2 at the same time. If there is a set of D30 and intensity ratio r30, it is determined that the mobile communication terminal 20b is communicating with the repeater station 30 of the same set of delay time D30 and intensity ratio r30.Delay time D30 of the duplicate signal RC20bk If the combination of the delay time D30 and the intensity ratio r30 that are the same as the intensity ratio r30 is not found in the previously searched base station 10 or the like column, the base station 10 or the like When a plurality of repeater stations are connected, the other repeater stations are searched in the same manner as described above, and the same delay time D30 and intensity ratio as the set of the delay time D30 and the intensity ratio r30 of the duplicate signal RC20bk for all repeater stations If the group of r30 is not found in the previously searched base station 10 etc. column, the mobile communication terminal 20b determines that it is communicating with the base station 10. Conditions unique to the repeater station 30 etc. Since the three cases 1 to 3 are the same as above, the description thereof is omitted.

  FIG. 3 is a flowchart showing the function of the position information calculation system 1 and the flow of the position information calculation method according to the first embodiment of the present invention. In FIG. 3, the flowchart on the left shows the flow of the functions of the repeater station 30, the flowchart on the center shows the flow of the functions of the mobile communication terminal 20b, etc., and the flowchart on the right shows the functions of the program in the positioning server 40, etc. Show the flow. Communication between the repeater station 30 and the mobile communication terminal 20b and between the mobile communication terminal 20b and the positioning server 40 is indicated by broken lines. For convenience of explanation, it is assumed that conditions unique to the repeater station 30 are conditions 1 and 2 (specific delay time D30 and intensity ratio r30).

  As shown in FIG. 3, first, the repeater station 30 receives a signal transmitted from the base station 10 (step S10). Subsequently, the received signal is delayed by the duplicating unit 31 by a delay time D30 unique to the repeater station 30, and the duplicating signal RC30k and the original signal ( A signal M30 obtained by combining the signal to be copied (R30k) is transmitted (step S12).

  The mobile communication terminal 20b receives R20bk (corresponding to the original signal R30k) from among the signals of the combined signal M30 received by separate receivers (reception units), and a signal RC20bk (delayed from R20b and having a different strength from R20bk). Corresponding to the duplicate signal RC30k (which may include a reflected wave by multipath propagation) is obtained (step S20). Next, the signal RC20bk etc. based on the strength of each signal (the strength S20bk of the signal R20bk and the strength SC20bk such as the signal RC20bk delayed from the signal R20bk) according to the conditions set in advance or specified by the received signal as described above An intensity ratio r30 to the signal R20bk is obtained, and each delay time D30 and the like for each signal RC20bk is obtained, and positioning information INF including these is transmitted (positioning information transmission step, step S22).

  The positioning server 40 receives the positioning information INF transmitted in the positioning information transmitting step (step S22) via a network such as the Internet and the packet communication network 12 (positioning information receiving step, step S30). Based on the positioning information INF received in the positioning information receiving step (step S30) and the above-described predetermined determination criteria, it is determined whether or not the mobile communication terminal 20b is communicating with the repeater station 30 (determination step, step S32). . When it is determined in the determination step (step S32) that the mobile communication terminal 20b is communicating with the repeater station 30, the position information of the mobile communication terminal 20b is obtained based on the position information of the repeater station 30 and a predetermined positioning method. Calculate (calculation step, step S34). In this case, it is determined that the mobile communication terminal 20b is communicating with the repeater station 30. As a result, it can be determined that the mobile communication terminal 20b is within the service area SA30 of the repeater station 30. Specifically, it can be determined that it exists at the position U30 or the gravity center position G30 immediately below the repeater station 30 in the service area SA30. If it is not determined in the determination step (step S32) that the mobile communication terminal 20b is communicating with the repeater station 30, a plurality of repeater stations are included in the base station 10 or the like as described above, although not explicitly shown in the flowchart. If connected, search for other repeater stations in the same way, and if it is not determined that all the repeater stations are communicating, based on the location information of the base station 10 and a predetermined positioning method, mobile communication The position information of the terminal 20b is calculated (calculation step, step S36). In this case, it is determined that the mobile communication terminal 20b is communicating with the base station 10. As a result, the mobile communication terminal 20b can be determined to be within the service area SA10 of the base station 10. Specifically, it can be determined that it is present at the position U10 or the center-of-gravity position G10 of the base station 10 in the service area SA10.

  As described above, according to the first embodiment of the present invention, the duplicate signal RC30k and the duplicated signal R30k obtained by duplicating the signal received by the repeater station 30 from the base station 10 by the duplication unit 31 based on the conditions unique to the repeater station 30 Is transmitted. The mobile communication terminal 20b obtains a signal R20bk corresponding to the replicated signal R30k and a signal RC20bk corresponding to the replicated signal R30k from among the signals of the combined signal M30 respectively received by separate receivers. Next, predetermined positioning information INF relating to a signal group including the replicated signal R20bk and the replicated signal RC20k is transmitted. The positioning server 40 receives the positioning information INF via the Internet and a network such as the packet communication network 12. Based on the received positioning information INF and the above-described predetermined determination criteria, it is determined whether or not the mobile communication terminal 20b is communicating with the repeater station 30. When it is determined that the mobile communication terminal 20b is communicating with the repeater station 30, the position information of the mobile communication terminal 20b is calculated based on the position information of the repeater station 30 and a predetermined positioning method. As a result, it can be determined that the mobile communication terminal 20b is within the service area SA30 of the repeater station 30. On the other hand, if it is not determined that the mobile communication terminal 20b is communicating with the repeater station 30, or if a plurality of repeater stations are connected to the base station 10 or the like, the position information database is similarly applied to the other repeater stations. If 45 is searched and it is not determined that all the repeater stations are communicating, the position information of the mobile communication terminal 20b is calculated based on the position information of the base station 10 and a predetermined positioning method. As a result, the mobile communication terminal 20b can be determined to be within the service area SA10 of the base station 10. As described above, even when the mobile communication terminal 20b communicates with the repeater station 30 by the CDMA method, even if the mobile communication terminal 20b is positioned by the cell-based positioning method or the multiple base station positioning method, it is high. The position information of the mobile communication terminal 20b can be calculated with position accuracy.

  In the first embodiment, there is one repeater station 30 connected to the base station 10. However, the number of repeater stations 30 connectable to the base station 10 is not limited to one, and a plurality of repeater stations 30 can be connected.

  FIG. 4 shows the position information calculation system 2 when the CDMA system in the second embodiment of the present invention is used. In FIG. 4, the portions denoted by the same reference numerals as those in FIG. As shown in FIG. 4, in the position information calculation system 2, in addition to the repeater station 30, a repeater station 50 connected to the base station 10 by wire or wirelessly and having a relay function between the mobile communication terminals 20c is provided. It is connected. In FIG. 4, symbol SA50 is the service area of the repeater station 50, G50 is the center of gravity of the service area SA50, U50 is the position immediately below the repeater station 50 in the service area SA50, and 20c is mobile communication that performs mobile communication with the repeater station 50. The terminal, Pc, is the actual position of the mobile communication terminal 20c in the service area SA50, and Lc is the distance between the repeater station 50 and the mobile communication terminal 20c.

  In the second embodiment, for convenience of explanation, it is assumed that conditions unique to the repeater station 30 and the repeater station 50 are conditions 1 and 2 (a unique delay time D50 and an intensity ratio r50). As shown in FIG. 4, the repeater station 50 delays the signal transmitted from the base station 10 by a duplication unit 51 by a delay time D50 (described later) unique to the repeater station 50, and the intensity ratio inherent to the repeater station 50. A function of transmitting a signal M50 (described later, see FIG. 5) obtained by synthesizing a duplicate signal RC50 (intensity SC50) duplicated by giving r50 by the duplication unit 51 and an original signal (a signal to be duplicated) R50 (intensity S50) is provided. ing. Here, the intensity ratio r50 = (SC50 / S50). Specifically, the signal R50 transmitted from the base station 10 is branched at the branching point 53, and the duplicated signal RC50 and the original signal R50, which are duplicated by passing through the duplicating unit 51 side by a delay time D50 and giving an intensity ratio r50, Are synthesized at the synthesis point 54, and the synthesized signal M 50 is transmitted from the transmission / reception unit 52. As in the case of the first embodiment, the transmission / reception unit 52 may be referred to as a repeater station in a narrow sense. On the other hand, the repeater station 50 can be said to be a repeater station in a broad sense in which a repeater station 52 in a narrow sense and a duplication unit 51 are combined. A replica in which the repeater station 50 in a broad sense duplicates the signal R50 transmitted from the base station 10 by the duplication unit 51 by delaying the signal R50 transmitted from the base station 10 by a delay time D50 specific to the repeater station 50 in the broad sense or the repeater station 52 in the narrow sense. In other words, it may have a function of transmitting a signal M50 obtained by combining the signal RC50 and the original signal R50. As in the case of the first embodiment, the duplicating unit 51 can be installed in the vicinity of the repeater station 52 in the narrow sense in the repeater station 50 in the broad sense as shown in FIG. Can also be incorporated. The broad-sense repeater station 50 may be a casing that includes the duplicating section 51 and the narrow-sense repeater station 52. Hereinafter, in the second embodiment, like the first embodiment, the repeater station refers to the repeater station 50 in a broad sense, unless otherwise specified. In FIG. 4, two repeater stations 30 and 50 are connected to the base station 10, but this is for convenience of drawing, and as described above, the base station 10 includes two or more repeater stations 30 and the like. Can be connected.

  FIG. 5 is a graph showing the relationship between the signal transmitted from the repeater station 50 and the signal received by the mobile communication terminal 20c. In FIG. 5, the vertical axis represents signal intensity (bit energy (Eb) / noise power spectral density (Io)), and the horizontal axis represents time. In FIG. 5, for convenience of explanation, a reflected wave due to multipath propagation is omitted. As shown in FIG. 5, the repeater station 50 transmits a composite signal M50 of the original signal R50 and the duplicated signal RC50 which is delayed by a delay time D50 inherent to the repeater station 50 and given an intensity ratio r50. The mobile communication terminal 20c receives the original signal R50 as the signal R20c having the strength S20c that is somewhat weaker than the strength S50 of the signal R50 after the delay time D-Lc of the distance Rc with respect to the original signal R50. Further, the mobile communication terminal 20c receives the duplicate signal RC50 as a signal RC20c of strength SC20c having a strength ratio r50 to strength S20c of the signal R20c after a delay time of delay time D50 from reception of the signal R20c. Receive. That is, SC20c / SC20 = r50.

  As described in the first embodiment, after the signal R20c is received, the reflected wave due to multipath propagation with the intensity SC20c having the intensity ratio r50 with respect to the intensity S20c of the signal R20c is received after the preset delay time D50. In fact, it seems that it can hardly happen. Therefore, when a signal having the intensity SC20c having the intensity ratio r50 with respect to the intensity S20c of the signal R20c is received after the predetermined delay time D50 after the signal R20c is received, the signal is not a reflected wave due to multipath propagation. The possibility of being RC20c is extremely high. On the other hand, the mobile communication terminal 20c receives the signal RC20c after the delay time D50 after receiving the signal R20c. Assuming that the mobile communication terminal 20c is communicating with the repeater station 30 instead of the repeater station 50, as described in the first embodiment, the delay time from the reception of the signal R20c to the reception of the signal RC20c Should be D30 instead of D50. Further, when the mobile communication terminal 20c is directly communicating with the base station 10, neither the duplicate signal RC20c (corresponding to the duplicate signal RC50) nor the duplicate signal RC20b (corresponding to the duplicate signal RC30) is received. . Therefore, when the mobile communication terminal 20c receives the signal RC20c as shown in FIG. 5, it is considered that the mobile communication terminal 20c is communicating with the repeater station 50 instead of the base station 10 or the repeater station 30. Can do.

  The subsequent processing is the same as in the first embodiment, and the mobile communication terminal 20c determines the intensity ratio of each signal (the intensity ratio r50 of the signal RC20c and the intensity ratio of the reflected wave by multipath propagation (the intensity of the reflected wave / S20C)). Then, positioning information INF including each delay time D50 etc. for each signal RC20c etc. delayed from the signal R20c is transmitted. The positioning information INF is, for example, ((duplicate signal delay time D50, intensity ratio r50), (reflected wave delay time Dt, (reflected wave intensity / S20C))).

  The positioning server 40 receives the transmitted positioning information INF via a network such as the Internet and the packet communication network 12, and the mobile communication terminal 20 c is connected to the repeater station 50 based on the positioning information INF and the above-described predetermined determination criteria. It is determined whether or not communication is performed. When it is determined that the mobile communication terminal 20c is communicating with the repeater station 50, the position information of the mobile communication terminal 20c is calculated based on the position information of the repeater station 50 and a predetermined positioning method. In this case, it is determined that the mobile communication terminal 20c is communicating with the repeater station 50. As a result, it is possible to determine that the mobile communication terminal 20c is within the service area SA50 of the repeater station 50. Specifically, it can be determined that it exists at the position U50 or the gravity center position G50 directly below the repeater station 50 in the service area SA50. When it is not determined that the mobile communication terminal 20c is communicating with the repeater station 50, that is, a combination of the delay time and the intensity ratio that is the same as the combination of the delay time D50 and the intensity ratio r50 of the duplicate signal in the positioning information INF. If a plurality of repeater stations are connected to the base station 10 or the like when not found in the searched base station 10 or the like column, the other repeater stations are searched in the same manner as described above. If the same set of delay time and intensity ratio as the set of duplicate signal delay time D50 and intensity ratio r50 is not found in the searched base station 10 column for all repeater stations, the mobile communication terminal 20c 10 is in communication. As a result, it is possible to determine that the mobile communication terminal 20c is within the service area SA10 of the base station 10. Specifically, it can be determined that it is present at the position U10 or the center-of-gravity position G10 of the base station 10 in the service area SA10. Subsequently, the position information of the mobile communication terminal 20c is calculated based on the position information of the base station 10 and a predetermined positioning method.

  As described above, according to the second embodiment of the present invention, a plurality of repeater stations 50 and the like can be connected to the base station 10. Since the repeater station 50 and the like have their own delay time D50 and intensity ratio r50 set in advance, the positioning server 40 is based on the positioning information INF transmitted from the mobile communication terminal 20c and the predetermined positioning method described above. The position information of the mobile communication terminal 20c can be calculated. That is, the positioning server 40 determines the positioning information transmitted from the mobile communication terminal 20c when the mobile communication terminal 20c is communicating with any one of the base station 10, the repeater station 50, the other repeater station 30, and the like by the CDMA method. Based on the INF and the above-mentioned predetermined positioning method, the position information of the mobile communication terminal 20c can be obtained with high position accuracy even when the mobile communication terminal 20c is positioned by the cell-based positioning method or the multiple base station positioning method. Can be calculated.

  In the first and second embodiments, the position information of the mobile communication terminal 20b and the like is calculated on the positioning server 40 side during communication. However, only the first position information calculation may be performed on the positioning server 40 side, and the second and subsequent position information calculations may be performed on the mobile communication terminal 20b side. As in the case of the latter half of the first embodiment, for convenience of explanation, it is assumed that conditions unique to the repeater station 30 are conditions 1 and 2 (specific delay time D30 and intensity ratio R30).

  FIG. 6 shows the position information calculation system 3 when the CDMA system in the third embodiment of the present invention is used. In FIG. 6, the same reference numerals as those in FIG. As in the first embodiment described above, the positioning server 40 uses the positioning information INF and the like transmitted from the mobile communication terminal 20b and the like, the position information POS 20b and the like of the mobile communication terminal 20b and the like by the calculation unit 44 (see FIG. 7). ) Is calculated. The position information POS 20b and the like specifically include latitude and longitude information of the mobile communication terminal 20b and the like, information on GPS satellites used when calculating the position information, and an identifier of the base station 10. The latitude and longitude information of the mobile communication terminal 20b and the like, information on the GPS satellite, and the identifier of the base station 10 are recorded in the position information database 45. The information regarding GPS satellites includes, for example, distances between four GPS satellites, measurement times, and the like. In addition to these, the position information can include various information used for calculation. As shown in the function block 41 of FIG. 6, the positioning server 40 transmits the position information POS 20 b and the like of the mobile communication terminal 20 b calculated by the calculation unit 44 to the mobile communication terminal 20 b and the like. (Position information transmitting means) can be further provided. As shown in the functional block 21 of FIG. 6, the mobile communication terminal 20b or the like is a terminal that newly calculates position information based on the position information POS 20b or the like transmitted by the position information transmitting unit 46 within a predetermined range. A side calculation unit 23 (terminal side calculation means) can be further provided. In the above description, the case where there is one repeater station 30 is shown as in the case of the first embodiment, but the case where a plurality of repeater stations are connected to the base station 10 as in the case of the second embodiment is also shown. Of course, the same is shown.

  FIG. 7 is a flowchart showing the function of the position information calculation system 3 and the flow of the position information calculation method according to the second embodiment of the present invention. In FIG. 7, the flowchart on the left side shows the flow of functions and the like of the repeater station 30, the flowchart on the center shows the flow of functions and the like of the mobile communication terminal 20 b, and the flowchart on the right side shows the functions and the like of the program in the positioning server 40. Show the flow. Communication between the repeater station 30 and the mobile communication terminal 20b and between the mobile communication terminal 20b and the positioning server 40 is indicated by broken lines. In FIG. 7, the processing blocks with the same step numbers as in FIG. The flowchart shown in FIG. 7 is different from the flowchart shown in FIG. 3 in that the mobile communication terminal 20b calculated in the calculation step (step S34 or S36) after steps S34 and S36 in the flowchart on the positioning server 40 side. The position information POS 20b is transmitted to the mobile communication terminal 20b (position information transmission step, step S38). Further, after step S22 in the flow chart on the mobile communication terminal 20b side, its own position information is calculated based on the position information POS 20b transmitted in the position information transmission step (step S38) within a predetermined range (terminal side calculation). Step, step S24).

  For example, when the mobile communication terminal 20b is located in the service area SA30 shown in FIG. 6 when calculating the position information for the first time, the above-mentioned predetermined range is the range of the service area SA30. Or within a range that does not move significantly from the service area SA30. If the delay time D30 and the intensity ratio r30 are recorded on the mobile communication terminal 20b side and the delay time D30 and the intensity ratio r30 do not change during communication, the terminal side calculation step (step S24) renews its own position information. The immediately preceding position information may be used without calculating. When the mobile communication terminal 20b moves out of the service area SA30 or the like, it communicates with another base station or another repeater station. In this case, the mobile communication terminal 20b side can know the change of the identifier of the base station or the change of the delay time and the intensity ratio of the received duplicate radio wave, and this change is reflected in the positioning information INF and the positioning server 40 side. Sent to. On the positioning server 40 side, based on the new positioning information INF, the calculation unit 44 calculates the first position information again, and the position information transmission unit 46 newly calculates the position information of the mobile communication terminal 20b and the like. The POS 20b or the like is transmitted to the mobile communication terminal 20b or the like. Thereafter, the terminal side calculation unit 23 such as the mobile communication terminal 20b can newly calculate the position information based on the position information POS 20b transmitted within a predetermined range.

  As described above, according to the third embodiment of the present invention, in addition to the functions shown in the first and second embodiments, the positioning server 40 uses the position information POS 20b and the like of the mobile communication terminal 20b and the like calculated by the calculation unit 44. A position information transmission unit 46 for transmitting to the mobile communication terminal 20b or the like can be further provided. The mobile communication terminal 20b and the like further include a terminal side calculation unit 23 (terminal side calculation means) that newly calculates position information based on the position information POS 20b and the like transmitted by the position information transmission unit 46 within a predetermined range. be able to. Therefore, while the mobile communication terminal 20b and the like are within a predetermined range, only the first position information calculation is performed on the positioning server 40 side, and the second and subsequent position information calculations are performed on the mobile communication terminal 20b side. Can be done. As a result, in addition to the effects of the first and second embodiments, the amount of communication between the mobile communication terminal 20b and the positioning server 40 can be reduced while the mobile communication terminal 20b and the like are within a predetermined range. The effect that can be obtained.

  In the first to third embodiments, the duplication unit 31 and the like are installed in the repeater station 30 and the like in a broad sense. However, the duplication unit 31 or the like may be installed in the base station 10 or may be installed between the repeater station 32 and the base station 10 (between connections) in a narrow sense.

  FIG. 8 shows the position information calculation system 4 when the CDMA system in the fourth embodiment of the present invention is used. In FIG. 8, portions denoted by the same reference numerals as those in FIG. 1 indicate the same elements or functions, and thus description thereof is omitted. The position information calculation system 4 shown in FIG. 8 is different from the position information calculation systems 1 and the like of the first to third embodiments in that the duplication unit 31 is installed in the base station 10 instead of the repeater station 30. . As a result, only the transmission / reception unit 32 (a repeater station in a narrow sense) is installed in the repeater station 30 in a broad sense. Since the base station 10 includes the duplicating unit 31, the base station 10 according to the fourth embodiment can be rephrased as a base station in a broad sense. The base station 10 of the first to third embodiments may be said to be a narrow base station. When the repeater stations 50 and the like are connected to the plurality of base stations 10 as in the case of the second embodiment, a plurality of duplicating units 31 and 51 in the broad base station 10 correspond to the repeater stations 30 and 50, etc. Will be installed. As described above, by installing the duplication unit 31 and the like in the base station 10 in a broad sense, the installation and maintenance of the duplication unit 31 can be performed more easily than when the repeater stations 30 and the like are individually separated. it can. In particular, when the repeater station 30 or the like is placed in a place where maintenance or the like is difficult to perform, installation and maintenance of the duplication unit 31 can be performed very easily.

  FIG. 9 shows another position information calculation system 5 in the case of using the CDMA system in Embodiment 4 of the present invention. In FIG. 9, portions denoted by the same reference numerals as those in FIG. 1 indicate the same elements or functions, and thus description thereof is omitted. The position information calculation system 5 shown in FIG. 9 differs from the position information calculation systems 1 and the like of the first to third embodiments in that the duplication unit 31 is not in the repeater station 30 but between the base station 10 and the repeater station 30. It is a point installed at the position of. As a result, only the transmission / reception unit 32 (a repeater station in a narrow sense) is installed in the repeater station 30 in a broad sense. When the repeater stations 50 and the like are connected to the plurality of base stations 10 as in the case of the second embodiment, the duplicating units 31 and 51 are respectively installed between the base station 10 and the repeater stations 30 and the like. become. As described above, by installing the duplication unit 31 and the like between the base station 10 and each repeater station 30 and the like, the base station 10 and the repeater station 30 and the like are placed in places where it is difficult to perform maintenance and the like. Even in this case, installation and maintenance of the duplication unit 31 can be performed very easily.

  As described above, according to the fourth embodiment of the present invention, the duplicating unit 31 and the like can be installed in the base station 10 in the broad sense, or can be installed between the repeater station 32 in the narrow sense and the base station 10 in the narrow sense. it can. When the duplication unit 31 or the like is installed in the base station 10 in a broad sense, the duplication unit 31 can be installed and maintained more easily than when the repeater station 30 and the like are separated from each other. In particular, when the repeater station 30 or the like is placed in a place where maintenance or the like is difficult to perform, installation and maintenance of the duplication unit 31 can be performed very easily. When the duplication unit 31 or the like is installed between the base station 10 and the repeater station 30 in the narrow sense, even if the base station 10 and the repeater station 30 or the like are placed in a place where maintenance or the like is difficult to perform, the duplication Installation and maintenance of the part 31 can be carried out very easily.

  In the first to fourth embodiments, the predetermined positioning method in the positioning server 40 is a cell-based positioning method. However, a multiple base station positioning method can also be used as the predetermined positioning method.

  FIG. 10 is a diagram for explaining a predetermined positioning method in the fifth embodiment of the present invention. In FIG. 10, the same reference numerals as those in FIG. FIG. 10 shows only the elements necessary for explaining the predetermined positioning method from FIG. 1, and the packet communication network 12 to which the base station 10 is connected is omitted. As described in the background art, the multiple base station positioning method is a method of calculating a position based on synchronization signals from three or more base stations. In the situation shown in FIG. 10, when positioning the mobile communication terminal 20a by the multiple base station positioning method, the repeater station 30 is one of the base stations, and the other base station 10 and the base station 10c are two units. The position is calculated based on synchronization signals from the three base stations including the base station. Since the conventional position calculation system cannot distinguish between the base station 10 and the repeater station 30, the calculated position accuracy may be extremely deteriorated. However, according to the position calculation system 1 and the like of the present invention, the base station 10 and the repeater station 30 can be easily identified as described above. For this reason, when repeater stations are included in three or more stations, even if a multiple base station positioning method is used as a predetermined positioning method, position information of the mobile communication terminal 20a and the like is calculated with high position accuracy. can do.

  As described above, according to the fifth embodiment of the present invention, since the position calculation system 1 and the like of the present invention can easily identify the base station 10 and the repeater station 30, the repeater station is included in three or more stations. Even if the multiple base station positioning method is used as the predetermined positioning method, the position information of the mobile communication terminal 20a and the like can be calculated with high position accuracy.

  FIG. 11 is a block diagram showing an internal circuit 80 of a computer such as the positioning server 40 that executes the computer program of the present invention for realizing the above-described embodiments. As shown in FIG. 11, the CPU 81, ROM 82, RAM 83, image control unit 86, controller 87, input control unit 89, and external interface (I / F) unit 91 are connected to a bus 92. In FIG. 11, the above-described computer program of the present invention is recorded on a recording medium (including a removable recording medium) such as a ROM 82, a disk 88a, or a CD-ROM 88n. A position information database 45 and the like are recorded on the disk 88a. The computer program of the present invention is loaded into the RAM 83 from the ROM 82 via the bus 92 or from a recording medium such as the disk 88a or CD-ROM 88n via the controller 87 via the bus 92. The input control unit 89 is connected to an input operation unit 90 such as a mouse or a numeric keypad and performs input control and the like. The VRAM 85 as an image memory has a capacity corresponding to the data capacity of at least one screen of the display unit 84 of the positioning server 40, and the image control unit 86 converts the data in the VRAM 85 into image data and sends it to the display unit 84. It has a function to send out. The external I / F unit 91 has an input / output interface function with the packet communication network 12 or the like.

  As described above, the object of the present invention can be achieved by the CPU 81 executing the above-described computer program of the present invention. The computer program can be supplied to the computer CPU 81 in the form of a recording medium such as a CD-ROM 88n as described above, and a recording medium such as a CD-ROM 88n on which the computer program is recorded also constitutes the present invention. It will be. As a recording medium on which the computer program is recorded, for example, a memory card, a memory stick, a DVD, an optical disk, an FD, or the like can be used in addition to the recording medium described above.

  In each of the above-described embodiments, the duplicating unit 31 or the like is on the downstream side (from the base station 10 to the mobile communication terminal 20b through the repeater station 30) in the communication between the base station 10 and the mobile communication terminal 20b. It was set. The duplicate signal RC30 and the like duplicated by the duplication unit 31 and the like are detected by the mobile communication terminal 20b and the like, and the positioning information INF based on the duplicate signal RC30 and the like is transmitted from the mobile communication terminal 20b and the like to the positioning server 40 via the repeater station 30. It had been. In the seventh embodiment, the duplicating unit 31 or the like is set on the upstream side (from the mobile communication terminal 20b or the like to the base station 10 via the repeater station 30) in the communication between the base station 10 and the mobile communication terminal 20b or the like. To do. That is, in uplink communication from the mobile communication terminal 20b or the like to the base station 10 via the repeater station 30, the repeater station 30 creates a composite signal of the duplicate signal and the duplicated signal, and the base station 10 Send to. Based on the received composite signal, the base station 10 creates positioning information INF similar to that in the above-described embodiment, and transmits the positioning information INF to the positioning server 40. Thereafter, as in the above-described embodiment, the positioning server 40 determines the position of the mobile communication terminal 20b and the like depending on whether the positioning information INF includes the strength of the replicated signal and the delay time specific to the repeater station 30. calculate.

  FIG. 12 shows the position information calculation system 7 when a predetermined connection method in the seventh embodiment of the present invention is used. As the predetermined connection method, the CDMA method is suitable as in the above-described embodiments. In FIG. 12, portions denoted by the same reference numerals as those in FIG. The difference between the position information calculation system 7 shown in FIG. 12 and the position information calculation system 1 shown in FIG. 1 is that the direction of each signal in the repeater station 30 is directed to the upstream side, mobile communication For example, the functional block 21 of the terminal 20 b is the functional block 61 of the base station 10 and a monitoring unit (monitoring means) 47 is newly added to the positioning server 40. The conditions unique to the repeater station 30 may include one or more of the conditions 1 to 3 as in the case of the first embodiment. In the seventh embodiment, for the convenience of explanation, it is assumed that conditions unique to the repeater station 30 are conditions 1 and 2 (specific delay time D30 and intensity ratio R30).

  As shown in FIG. 12, the repeater station 30 includes a duplicate signal CUp30 obtained by delaying a signal transmitted from the mobile communication terminal 20b by a duplication unit 31 by a delay time D30 unique to the repeater station 30 and an original signal (replicated signal). Signal) A function of transmitting a signal UpM30 synthesized with Up30 is provided. Specifically, the signal transmitted from the mobile communication terminal 20 b is received by the transmission / reception unit 32, output as the signal Up 30, and branched at the branch point 33. The original signal Up30 and the duplicate signal CUp30 which is delayed by the delay time D30 through the duplicating unit 31 side and given the unique intensity ratio r30 are synthesized at the synthesis point 34, and the synthesized signal UpM30 is combined with the repeater station 30. To the base station 10. The concept of the repeater station in a narrow sense and in a broad sense including the installation position of the duplicating unit 31 is the same as that in each of the above-described embodiments, and will be omitted. Hereinafter, the repeater station refers to the repeater station 30 in a broad sense as in the above-described embodiments, except in the case of distinction also in the seventh embodiment.

  As in the above-described embodiments, the duplicating unit 31 can use any delay circuit as long as the signal can be delayed by the delay time D30 unique to the repeater station 30. Similarly, the duplicating unit 31 can use any circuit as long as it can give the signal the intensity ratio r30 specific to the repeater station 30 with respect to the condition 2.

  Next, functions of the base station 10 will be described. In FIG. 12, reference numeral 61 is a functional block of the base station 10. As shown in the functional block 61, the base station 10 determines predetermined positioning information regarding the signal group including the original signal Up30 (replicated signal) and the duplicate signal CUp3 obtained from the received signal UpM30. A positioning information transmitting unit 62 (positioning information transmitting means) for transmitting INF is provided. That is, the base station 10 includes a function (positioning information transmission unit 22) on the mobile communication terminal 20b side in each of the above-described embodiments. On the other hand, the positioning information transmission unit 22 in each of the above-described embodiments is not provided on the mobile communication terminal 20b side. For this reason, the functional load on the mobile communication terminal 20b side can be reduced. In each of the above-described embodiments, the duplicate signal RC30 is transmitted from the repeater station 30 to the mobile communication terminal 20b on the downstream side, and the positioning information INF is transmitted from the mobile communication terminal 20b to the repeater station 30 on the upstream side. However, in the seventh embodiment, in the communication between the repeater station 30 and the mobile communication terminal 20b, the duplicate signal RC30 and the positioning information INF are not transmitted or received on the downstream side or the upstream side. For this reason, the position information calculation system 7 of the seventh embodiment can effectively use radio waves as compared with the position information calculation system 1 and the like in each of the above-described embodiments.

  FIG. 13A is a graph showing the relationship between the (uplink) signal transmitted from the mobile communication terminal 20a and the signal received by the base station 10. In FIG. 13A, the vertical axis represents signal intensity (bit energy (Eb) / noise power spectral density (Io)), and the horizontal axis represents time. Since the mobile communication terminal 20a communicates directly with the base station 10, as shown in FIG. 13A, the base station 10 has a delay time D− of the distance La from the transmission signal Up20a of the mobile communication terminal 20a. After La, a signal Up10 having an intensity SUp10 that is weakened to some extent from the intensity SUp20a of the transmission signal Up20a is received. On the other hand, FIG. 13B is a graph showing the relationship between the signal transmitted from the repeater station 30 and the signal received by the base station 10. In FIG. 13B, the vertical axis represents signal intensity (bit energy (Eb) / noise power spectral density (Io)), and the horizontal axis represents time. Since the mobile communication terminal 20b communicates with the base station 10 via the repeater station 30, the repeater station 30 satisfies the conditions specific to the original signal Up30 and the repeater station 30 as shown in FIG. The composite signal UpM30 with the duplicated signal CUp30 duplicated (delayed by the delay time D30 and given a specific intensity ratio r30) is transmitted. Here, the inherent intensity ratio r30 = SCUp30 / SUp30. The base station 10 becomes weak to some extent from the intensity SUp30 of the transmission signal Up30 after the delay time DL of the distance L (distance between the repeater station 30 and the base station 10; see FIG. 12) for the original signal Up30. The original signal Up30 is received as the signal Up30 ′ having the intensity SUp30 ′. Furthermore, the base station 10 receives the duplicate signal CUp30 as the signal CUp30 ′ of the intensity SCUp30 ′ having the intensity ratio r30 with respect to the intensity SUp30 ′ of the signal Up30 ′ after a delay time of the delay time D30 from the signal Up30 ′ with respect to the duplicate signal CUp30. To do. That is, SCUp30 '/ SUp30' = r30. As described in the above embodiments, after the signal Up30 ′, the reflected wave due to the multipath propagation of the intensity SCUp30 ′ having the intensity ratio r30 with respect to the intensity SUp30 ′ of the signal Up30 ′ is received after the preset delay time D30. It seems that it is almost impossible to actually do. Therefore, when a signal having an intensity SCUp30 ′ having an intensity ratio r30 with respect to the intensity SUp30 ′ of the signal Up30 ′ is received after the delay time D30 set in advance after the signal Up30 ′ is received, the signal is not a reflected wave due to multipath propagation. There is a very high possibility that the signal CUp30 ′. When the mobile communication terminal 20a is directly communicating with the base station 10, the duplicate signal CUp30 ′ (corresponding to the duplicate signal CUp30) is received as in the mobile communication terminal 20a shown in FIG. There is nothing. Therefore, when the base station 10 receives the signal CUp30 ′ as shown in FIG. 13B, it can be considered that the mobile communication terminal 20b is communicating with the repeater station 30 instead of the base station 10. .

  Under the above description, returning to FIG. 12, the function of the positioning server 40 will be described. As shown in the functional block 41 of the positioning server 40 in FIG. 12, the positioning server 40 is similar to the above-described embodiments in that it includes a positioning information receiving unit 42 (positioning information receiving unit) and a determining unit 43 (determining unit). ), A calculation unit 44 (calculation means), and a position information database 45 in which position information of cells in which the base station 10 and the repeater station 30 and the like exist, conditions unique to the repeater station 30 and the like are recorded, A monitoring unit 47 (monitoring means) is newly provided. In the seventh embodiment, the base station 10 creates the positioning information INF instead of the mobile communication terminal 20 b and transmits it to the positioning server 40. For this reason, the functions on the positioning server 40 side are the same as those in the above-described embodiments except for the new monitoring unit 47. That is, the positioning information receiving unit 42 receives the positioning information INF transmitted by the positioning information transmitting unit 62 via a network such as the Internet and the packet communication network 12. The positioning information INF is, for example, ((delay time D30 of duplicate signal CUp30, intensity ratio r30)), (delay time of reflected wave, intensity ratio (= intensity of reflected wave / SUp30 ')), or the like. The determination unit 43 determines whether or not the mobile communication terminal 20b and the like are communicating with the repeater station 30 based on the positioning information INF received by the positioning information receiving unit 42 and the predetermined determination criterion described in the first embodiment. to decide. When the determination unit 43 determines that the mobile communication terminal 20b or the like is communicating with the repeater station 30, the calculation unit 44 uses the position information of the repeater station 30 recorded in the position information database 45 and the above-described embodiment. Based on the described predetermined positioning method, position information of the mobile communication terminal 20b and the like is calculated. As described above, the determination unit 43 can determine whether the station to which the mobile communication terminal 20b is connected is the base station 10 or the repeater station 30. When the determination unit 43 determines that the mobile communication terminal 20b or the like is communicating with the repeater station 30, the calculation unit 44 obtains cell information (position information) of the repeater station 30 from the position information database 45. The information of the cell where the mobile communication terminal 20b or the like is located, that is, the position information of the mobile communication terminal 20b or the like can be calculated.

  FIG. 14 is a flowchart showing the function of the position information calculation system 7 and the flow of the position information calculation method according to the seventh embodiment of the present invention. In FIG. 14, the processing blocks given the same step S numbers as in FIG. In FIG. 14, the flowchart on the left side shows the flow of functions and the like of the repeater station 30, the flowchart on the center shows the flow of functions and the like of the base station 10, and the flowchart on the right side shows the flow of program functions and the like in the positioning server 40. . Communication between the repeater station 30 and the base station 10 and between the base station 10 and the positioning server 40 is indicated by broken lines. Since the mobile communication terminal 20b only performs normal mobile communication with the repeater station 10 or the base station 10, its flowchart is omitted.

  As shown in FIG. 14, the repeater station 30 first receives a signal transmitted from the mobile communication terminal 20b (step S40). Subsequently, the duplicated signal CUp30 and the original signal (replicated signal) Up30 are synthesized by delaying the received signal by the duplicating unit 31 by a delay time D30 unique to the repeater station 30 and giving a unique intensity ratio r30. Signal UpM30 is transmitted (step S42).

  The base station 10 receives the composite signal UpM30 (step S50). Subsequently, Up30 ′ (corresponding to the original duplicated signal Up30), the signal CUp30 ′ duplicated from Up30 ′ (corresponding to the duplicated signal CUp30), and the reflected wave due to multipath propagation are obtained from the received synthesized signal UpM30 (step) S50). Next, predetermined positioning information INF relating to the signal group including Up30 'and CUp30' is transmitted (positioning information transmission step, step S52).

  Since the subsequent processing of the positioning server 40 is the same as that in the above-described embodiment, detailed description thereof is omitted. When it is determined in the determination step (step S32) that the mobile communication terminal 20b is communicating with the repeater station 30, the position information of the mobile communication terminal 20b is obtained based on the position information of the repeater station 30 and a predetermined positioning method. Calculate (calculation step, step S34). In this case, it is determined that the mobile communication terminal 20b is communicating with the repeater station 30. As a result, it can be determined that the mobile communication terminal 20b is within the service area SA30 of the repeater station 30. If it is not determined in the determination step (step S32) that the mobile communication terminal 20b is communicating with the repeater station 30, the position information of the mobile communication terminal 20b is based on the position information of the base station 10 and a predetermined positioning method. Is calculated (calculation step, step S36). In this case, it is determined that the mobile communication terminal 20b is communicating with the base station 10. As a result, the mobile communication terminal 20b can be determined to be within the service area SA10 of the base station 10. Although not shown in the flowchart of FIG. 14, as in the above-described embodiment, the base station 10 or the like in which the same delay time and intensity ratio pair as the set of the delay time D30 and the intensity ratio r30 of the duplicate signal has been searched. If not found in the column, and if a plurality of repeater stations are connected to the base station 10 or the like, the other repeater stations are searched in the same manner as described above. If the same set of delay time and intensity ratio as the set of duplicate signal delay time D30 and intensity ratio r30 is not found in the searched base station 10 column for all repeater stations, mobile communication terminal 20b 10 is in communication.

  The monitoring unit 47 monitors the operation of the repeater station 30 based on the determination result of the determination unit 43. For example, the mobile communication terminal 20b is placed at an appropriate position in the service area SA30 that can be received from the repeater station 30 for the purpose of monitoring the repeater station 30. By causing the mobile communication terminal 20b to perform transmission or reception periodically or irregularly, the positioning server 40 is caused to calculate the position information of the mobile communication terminal 20b. Here, when the positioning information INF received by the positioning server 40 includes the intensity ratio r30 and the delay time D30 specific to the repeater station 30, the determination unit 43 causes the mobile communication terminal 20b to communicate with the repeater station 30. Judge that In this case, the monitoring unit 47 can estimate that the repeater station 30 normally emits radio waves based on the determination result of the determination unit 43. On the other hand, if the positioning information INF does not include the intensity ratio r30 and the delay time D30 specific to the repeater station 30, the determination unit 43 determines that the mobile communication terminal 20b is not communicating with the repeater station 30. In this case, the monitoring unit 47 can estimate that the repeater station 30 is not normally emitting radio waves based on the determination result of the determination unit 43. As described above, the monitoring unit 47 can monitor the operation of the repeater station 30 based on the determination result of the determination unit 43.

  As described above, according to the seventh embodiment of the present invention, the repeater station 30 first receives a signal transmitted from the mobile communication terminal 20b. Subsequently, the duplicated signal CUp30 and the original signal (replicated signal) Up30 are synthesized by delaying the received signal by the duplicating unit 31 by a delay time D30 unique to the repeater station 30 and giving a unique intensity ratio r30. Signal UpM30 is transmitted. The base station 10 receives the composite signal UpM30. Subsequently, predetermined positioning information INF relating to a signal group including the duplicated signal Up30 'and the duplicated signal CUp30' obtained from the received combined signal UpM30 is transmitted. The positioning server 40 performs the same processing as in the above-described embodiment, and when the determination unit 43 determines that the mobile communication terminal 20b is communicating with the repeater station 30, the position information of the repeater station 30 and a predetermined positioning method. Based on the above, position information of the mobile communication terminal 20b is calculated. In this case, it is determined that the mobile communication terminal 20b is communicating with the repeater station 30. As a result, it can be determined that the mobile communication terminal 20b is within the service area SA30 of the repeater station 30. If the determination unit 43 does not determine that the mobile communication terminal 20b is communicating with the repeater station 30, or if a plurality of repeater stations are connected to the base station 10 or the like, the positions of the other repeater stations are the same. If the information database 45 is searched and it is not determined that all the repeater stations are communicating, the position information of the mobile communication terminal 20b is calculated based on the position information of the base station 10 and a predetermined positioning method. In this case, it is determined that the mobile communication terminal 20b is communicating with the base station 10. As a result, the mobile communication terminal 20b can be determined to be within the service area SA10 of the base station 10. The monitoring unit 47 can monitor the operation of the repeater station 30 based on the determination result of the determination unit 43 described above.

  As described above, when the duplicating unit 31 or the like is set on the upstream side in the communication between the base station 10 and the mobile communication terminal 20b or the like, the mobile communication terminal 20b by the CDMA method as in the above embodiments. Even when the mobile communication terminal 20b is positioned by the cell-based positioning method or the multiple base station positioning method when the mobile station 20 is communicating with the repeater station 30, the position information of the mobile communication terminal 20b is highly accurate. Can be calculated. That is, in the uplink communication from the mobile communication terminal 20b or the like to the base station 10 via the repeater station 30, the repeater station 30 creates a combined signal of the duplicate signal and the duplicated signal, and the base station 10 Send to. Based on the received composite signal, the base station 10 creates positioning information INF similar to that in the above-described embodiment, and transmits the positioning information INF to the positioning server 40. As a result, the positioning server 40 can calculate the position of the mobile communication terminal 20b or the like depending on whether or not the delay time D30 and the intensity ratio r30 specific to the repeater station 30 are included in the positioning information INF.

  In the seventh embodiment, in the case corresponding to the first embodiment, when the duplicating unit 31 or the like is set on the upstream side in the communication between the base station 10 and the mobile communication terminal 20b or the like, the mobile communication terminal 20b is connected by the CDMA method. Even when the mobile communication terminal 20b is positioned by the cell-based positioning method or the multiple base station positioning method when communicating with the repeater station 30, the position information of the mobile communication terminal 20b can be obtained with high positional accuracy. It explained that it can be calculated. Similarly, in the other embodiments 2 to 6, when the duplication unit 31 or the like is set on the upstream side in the communication between the base station 10 and the mobile communication terminal 20b or the like, the mobile communication terminal 20b is connected to the repeater by the CDMA method. Even when the mobile communication terminal 20b is positioned by the cell-based positioning method or the multiple base station positioning method when communicating with the station 30, the position information of the mobile communication terminal 20b is calculated with high positional accuracy. Of course it can be done.

  As an application example of the present invention, application to various location information providing services such as a mobile phone and a portable information terminal that perform mobile communication using the CDMA system can be cited.

It is a figure which shows the position information calculation system 1 at the time of using the CDMA system in Example 1 of this invention. It is a graph which shows the relationship between the signal transmitted from the base station 10, and the signal which the mobile communication terminal 20a received. It is a graph which shows the relationship between the signal transmitted from the repeater station 30, and the signal which the mobile communication terminal 20b received. It is a graph which shows the relationship between the signal transmitted from the repeater station 30, and the signal which the mobile communication terminal 20b received when all the conditions 1 thru | or 3 are included. It is a flowchart which shows the function and the flow of a method of the positional information calculation system 1 in Example 1 of this invention. It is a figure which shows the position information calculation system 2 at the time of using the CDMA system in Example 2 of this invention. It is a graph which shows the relationship between the signal transmitted from the repeater station 50, and the signal which the mobile communication terminal 20c received. It is a figure which shows the position information calculation system 3 at the time of using the CDMA system in Example 3 of this invention. It is a flowchart which shows the function of the positional information calculation system 3 in Example 2 of this invention, and the flow of a positional information calculation method. It is a figure which shows the positional infomation calculation system 4 at the time of using the CDMA system in Example 4 of this invention. It is a figure which shows the other location information calculation system 5 at the time of using the CDMA system in Example 4 of this invention. It is a figure for demonstrating the predetermined positioning system in Example 5 of this invention. It is a block diagram which shows the internal circuit 80 of computers, such as the positioning server 40 which performs the computer program of this invention for implement | achieving each Example mentioned above. It is a figure which shows the positional infomation calculation system 7 at the time of using the CDMA system in Example 7 of this invention. It is a figure which shows the relationship between the signal which the (uplink) signal transmitted from the mobile communication terminal 20a and the signal which the base station 10 received in the graph. It is a figure which shows the relationship between the signal transmitted from the repeater station 30, and the signal which the base station 10 received with the graph. It is a flowchart which shows the function of the position information calculation system 7 in Example 7 of this invention, and the flow of a method. It is a figure which shows the positional information calculation system 6 in the conventional code division multiple access system using a repeater station.

Explanation of symbols

1, 2, 3, 4, 5, 7 Location information calculation system, 6 Conventional location information calculation system, 10, 10c Base station, 12 packet communication network, 20a, 20b Mobile communication terminal, 21 Function block, 22, 62 Positioning information transmitter, 23 Terminal side calculator, 30, 38, 50 Repeater station, 31, 51 Replicator, 32, 52 Transmitter / receiver (narrow repeater station), 33, 53 Branch point, 34, 54 Composite point, 40 Positioning server, 41, 61 functional block, 42 positioning information receiving unit, 43 determining unit, 44 calculating unit, 45 location information database, 46 location information transmitting unit, 47 monitoring unit, 80 internal circuit, 81 CPU, 82 ROM, 83 RAM , 85 VRAM, 86 Image control unit, 84 Display unit, 87 Controller, 88a disk, 88n CD-ROM, 89 inputs Control unit, 90 input operation unit, 91 external I / F unit, 92 a bus.

Claims (55)

A position information calculation system for calculating position information of a mobile communication terminal that performs mobile communication using a predetermined connection method, a positioning server that measures the position of the mobile communication terminal based on a predetermined positioning method, and the positioning A base station connected to a server via a network, and a repeater station connected to the base station and relaying between the mobile communication terminals,
The repeater station
Means for transmitting a duplicated signal and a signal to be duplicated, which are duplicated by a duplicating unit based on conditions unique to the repeater station, transmitted from the base station;
The mobile communication terminal is
Positioning information transmitting means for transmitting predetermined positioning information related to the copied signal and the signal group including the duplicated signal obtained from signals received by separate receiving units,
The positioning server
Positioning information receiving means for receiving the positioning information transmitted by the positioning information transmitting means via the network;
Determination means for determining whether the mobile communication terminal is communicating with the repeater station based on the positioning information received by the positioning information receiving means and a predetermined determination criterion;
When the determination means determines that the mobile communication terminal is communicating with the repeater station, a calculation for calculating the position information of the mobile communication terminal based on the position information of the repeater station and the predetermined positioning method And a position information calculation system. A position information calculation system for calculating position information of a mobile communication terminal that performs mobile communication using a predetermined connection method, a positioning server that measures the position of the mobile communication terminal based on a predetermined positioning method, and the positioning A base station connected to a server via a network, and a repeater station connected to the base station and relaying between the mobile communication terminals,
The repeater station
Means for transmitting a duplicated signal and a signal to be duplicated, which are duplicated by a duplication unit based on a condition specific to the repeater station, the signal transmitted from the mobile communication terminal;
The base station
Positioning information transmitting means for transmitting predetermined positioning information related to the signal to be replicated obtained from received signals and a signal group including the replicated signal,
The positioning server
Positioning information receiving means for receiving the positioning information transmitted by the positioning information transmitting means via the network;
Determination means for determining whether the mobile communication terminal is communicating with the repeater station based on the positioning information received by the positioning information receiving means and a predetermined determination criterion;
When the determination means determines that the mobile communication terminal is communicating with the repeater station, a calculation for calculating the position information of the mobile communication terminal based on the position information of the repeater station and the predetermined positioning method And a position information calculation system. In the position information calculation system according to claim 1 or 2,
The conditions specific to the repeater station are: a condition for delaying the replicated signal by a delay time specific to the repeater station; a condition for giving a specific intensity ratio to the repeater station for the replicated signal; Including one or more conditions that provide a phase difference inherent to the repeater station;
The predetermined positioning information includes one or more of an intensity ratio, a delay time, or a phase difference of each signal in the signal group with respect to a replicated signal,
The predetermined criterion is a standard in which the intensity ratio with respect to the replicated signal included in the positioning information is an intensity ratio specific to the repeater station, according to the content of conditions specific to the repeater station, the positioning information The reference is the same as the delay time specific to the repeater station for the included duplicated signal, the phase difference for the duplicated signal included in the positioning information is the same as the phase difference unique to the repeater station A position information calculation system, which is a criterion for determining that the mobile communication terminal is communicating with the repeater station when one or more of the criteria are satisfied.   4. The position information calculation system according to claim 1, wherein one or more repeater stations can be connected to the base station. In the position information calculation system according to any one of claims 1 to 4,
The location information of the mobile communication terminal calculated by the calculation means includes latitude and longitude information of the mobile communication terminal, information on the satellite in the satellite positioning system used when calculating the location information, and the base Station identifier,
The positioning server further includes position information transmitting means for transmitting the position information of the mobile communication terminal calculated by the calculating means to the mobile communication terminal,
The mobile communication terminal further includes a terminal-side calculation unit that newly calculates position information based on the position information transmitted by the position information transmission unit within a predetermined range. .   6. The position information calculation system according to claim 3, wherein the duplication unit is installed in any one of the repeater station, the base station, or a connection between the repeater station and the base station. Position information calculation system.   7. The position information calculation system according to claim 1, wherein the predetermined positioning method is a cell-based positioning method or a multiple base station positioning method.   8. The position information calculation system according to claim 1, wherein the predetermined connection method is a code division multiple access method.   9. The positional information calculation system according to claim 1, further comprising a monitoring unit that monitors the operation of the repeater station based on a determination result of the determination unit. A repeater station in a position information calculation system that calculates position information of a mobile communication terminal that performs mobile communication using a predetermined connection method, wherein the position information calculation system sets the position of the mobile communication terminal to a predetermined positioning method. A positioning server for positioning based on a base station connected to the positioning server via a network;
The repeater station is connected to the base station and relays between the mobile communication terminals, and a duplicate signal obtained by duplicating a signal transmitted from the base station based on a condition specific to the repeater station And means for transmitting the copied signal,
The copied signal is obtained from signals received by separate receiving units of the mobile communication terminal, and the mobile communication terminal uses the predetermined signal related to the copied signal and a signal group including the replicated signal. Positioning information is sent,
The positioning information is received by the positioning server via the network, and the positioning server determines whether the mobile communication terminal is communicating with the repeater station based on the positioning information and a predetermined criterion. If it is determined that the mobile communication terminal is communicating with the repeater station, the position information of the mobile communication terminal is calculated based on the repeater station position information and the predetermined positioning method. Repeater station characterized by. A repeater station in a position information calculation system that calculates position information of a mobile communication terminal that performs mobile communication using a predetermined connection method, wherein the position information calculation system sets the position of the mobile communication terminal to a predetermined positioning method. A positioning server for positioning based on a base station connected to the positioning server via a network;
The repeater station is connected to the base station and relays to the mobile communication terminal, and a signal transmitted from the mobile communication terminal is replicated by a duplicating unit based on conditions specific to the repeater station Means for transmitting a replicated signal and a replicated signal;
The base station transmits positioning information about the copied signal obtained from the received signal and a signal group including the copied signal,
The positioning information is received by the positioning server via the network, and the positioning server determines whether the mobile communication terminal is communicating with the repeater station based on the positioning information and a predetermined criterion. If it is determined that the mobile communication terminal is communicating with the repeater station, the position information of the mobile communication terminal is calculated based on the repeater station position information and the predetermined positioning method. Repeater station characterized by. The repeater station according to claim 10 or 11,
The conditions specific to the repeater station are: a condition for delaying the replicated signal by a delay time specific to the repeater station; a condition for giving a specific intensity ratio to the repeater station for the replicated signal; Including one or more conditions that provide a phase difference inherent to the repeater station;
The predetermined positioning information includes one or more of an intensity ratio, a delay time, or a phase difference of each signal in the signal group with respect to a replicated signal,
The predetermined criterion is a standard in which the intensity ratio with respect to the replicated signal included in the positioning information is an intensity ratio specific to the repeater station, according to the content of conditions specific to the repeater station, the positioning information The reference is the same as the delay time specific to the repeater station for the included duplicated signal, the phase difference for the duplicated signal included in the positioning information is the same as the phase difference unique to the repeater station A repeater station that is a reference for determining that the mobile communication terminal is communicating with the repeater station when one or more of the criteria are satisfied.   13. The repeater station according to claim 10, wherein one or more repeater stations can be connected to the base station. Repeater station according to any of claims 10 to 13,
The location information of the mobile communication terminal calculated by the positioning server includes latitude and longitude information of the mobile communication terminal, information on the satellite in the satellite positioning system used when calculating the location information, and the base The location information is transmitted to the mobile communication terminal, and the location information is newly calculated based on the location information transmitted within a predetermined range by the mobile communication terminal. Repeater station characterized by.   The repeater station according to any one of claims 12 to 14, wherein the duplicating unit is installed at any one of the repeater station, the base station, or a connection between the repeater station and the base station. Repeater station.   The repeater station according to any one of claims 10 to 15, wherein the predetermined positioning method is a cell-based positioning method or a multiple base station positioning method.   17. The repeater station according to claim 10, wherein the predetermined connection method is a code division multiple access method.   18. The repeater station according to claim 10, wherein the positioning server further includes monitoring means for monitoring the operation of the repeater station based on a determination result of the positioning server. A mobile communication terminal in a position information calculation system for calculating position information of a mobile communication terminal that performs mobile communication using a predetermined connection method, wherein the position information calculation system determines a position of the mobile communication terminal by a predetermined positioning method. A positioning server that performs positioning based on a system, a base station that is connected to the positioning server via a network, and a repeater station that is connected to the base station and relays between the mobile communication terminals, the base station And a signal to be duplicated and a signal to be duplicated, which are duplicated by a duplication unit based on conditions specific to the repeater station,
The mobile communication terminal includes positioning information transmitting means for transmitting predetermined positioning information related to the copied signal and the signal group including the duplicated signal obtained from signals received by separate receiving units,
The positioning information transmitted by the positioning information transmitting means is received by the positioning server via the network, and the mobile communication terminal uses the positioning server and the repeater based on the positioning information and a predetermined criterion. When it is determined whether or not the mobile communication terminal is communicating with the repeater station, it is determined whether the mobile communication terminal is communicating with the repeater station. Based on the position information of the repeater station and the predetermined positioning method, the mobile communication A mobile communication terminal characterized in that position information of the terminal is calculated. A mobile communication terminal in a position information calculation system for calculating position information of a mobile communication terminal that performs mobile communication using a predetermined connection method, wherein the position information calculation system determines a position of the mobile communication terminal by a predetermined positioning method. A positioning server that performs positioning based on a system, a base station connected to the positioning server via a network, and a repeater station that is connected to the base station and relays to the mobile communication terminal, the mobile station A signal transmitted from a communication terminal and a signal to be replicated and a signal to be replicated, which are duplicated by a duplication unit based on conditions specific to the repeater station,
The base station includes positioning information transmitting means for transmitting predetermined positioning information related to the copied signal obtained from the received signal and a signal group including the duplicated signal,
The positioning information transmitted by the positioning information transmitting means is received by the positioning server via the network, and the mobile communication terminal uses the positioning server and the repeater based on the positioning information and a predetermined criterion. When it is determined whether or not the mobile communication terminal is communicating with the repeater station, it is determined whether the mobile communication terminal is communicating with the repeater station. Based on the position information of the repeater station and the predetermined positioning method, the mobile communication A mobile communication terminal characterized in that position information of the terminal is calculated. The mobile communication terminal according to claim 19 or 20,
The conditions specific to the repeater station are: a condition for delaying the replicated signal by a delay time specific to the repeater station; a condition for giving a specific intensity ratio to the repeater station for the replicated signal; Including one or more conditions that provide a phase difference inherent to the repeater station;
The predetermined positioning information includes one or more of an intensity ratio, a delay time, or a phase difference of each signal in the signal group with respect to a replicated signal,
The predetermined criterion is a standard in which the intensity ratio with respect to the replicated signal included in the positioning information is an intensity ratio specific to the repeater station, according to the content of conditions specific to the repeater station, the positioning information The reference is the same as the delay time specific to the repeater station for the included duplicated signal, the phase difference for the duplicated signal included in the positioning information is the same as the phase difference unique to the repeater station A mobile communication terminal, characterized in that if one or more of the criteria are satisfied, the mobile communication terminal is a criterion for determining that the mobile communication terminal is communicating with the repeater station.   The mobile communication terminal according to any one of claims 19 to 21, wherein one or more repeater stations can be connected to the base station. The mobile communication terminal according to any one of claims 19 to 22,
The position information of the mobile communication terminal calculated by the positioning server includes latitude and longitude information of the mobile communication terminal, information on the satellite in the satellite positioning system used when calculating the position information, and the base And the location information is transmitted to the mobile communication terminal,
The mobile communication terminal further comprises terminal side calculation means for newly calculating position information based on the position information transmitted by the position information transmission means within a predetermined range. .   24. The mobile communication terminal according to claim 21, wherein the duplicating unit is installed at any one of the repeater station, the base station, or a connection between the repeater station and the base station. A mobile communication terminal.   25. The mobile communication terminal according to claim 19, wherein the predetermined positioning method is a cell-based positioning method or a multiple base station positioning method.   26. The mobile communication terminal according to claim 19, wherein the predetermined connection method is a code division multiple access method.   9. The mobile communication terminal according to claim 1, wherein the positioning server further comprises monitoring means for monitoring the operation of the repeater station based on a determination result of the positioning server. Body communication terminal. A program for measuring the position of a mobile communication terminal in a position information calculation system for calculating position information of a mobile communication terminal that performs mobile communication using a predetermined connection method, based on the predetermined positioning method, The information calculation system is a repeater station that relays between the base station connected to the positioning server via the network and the mobile communication terminal connected to the base station, and a signal transmitted from the base station Transmitting a duplicated signal and a duplicated signal duplicated by the duplicating unit based on conditions specific to the repeater station, and the duplicated signal obtained from the signals respectively received by separate receiving units and the A mobile communication terminal for transmitting predetermined positioning information related to a signal group including a duplicate signal;
A computer of the positioning server;
Positioning information receiving means for receiving the positioning information transmitted by the positioning information transmitting means via the network;
Judgment means for judging whether or not the mobile communication terminal is communicating with the repeater station based on the positioning information received by the positioning information receiving means and a predetermined judgment criterion;
When the determination means determines that the mobile communication terminal is communicating with the repeater station, a calculation for calculating the position information of the mobile communication terminal based on the position information of the repeater station and the predetermined positioning method Program to function as a means. A program for measuring the position of a mobile communication terminal in a position information calculation system for calculating position information of a mobile communication terminal that performs mobile communication using a predetermined connection method, based on the predetermined positioning method, The information calculation system is a repeater station that relays between the base station connected to the positioning server via the network and the base station, and is transmitted from the mobile communication terminal. The base station is configured to transmit a duplicated signal and a duplicated signal that are duplicated by a duplication unit based on conditions specific to the repeater station, and the base station obtains the duplicated signal obtained from the received signal Transmitting predetermined positioning information related to a signal and a signal group including the duplicate signal,
A computer of the positioning server;
Positioning information receiving means for receiving the positioning information transmitted by the positioning information transmitting means via the network;
Judgment means for judging whether or not the mobile communication terminal is communicating with the repeater station based on the positioning information received by the positioning information receiving means and a predetermined judgment criterion;
When the determination means determines that the mobile communication terminal is communicating with the repeater station, a calculation for calculating the position information of the mobile communication terminal based on the position information of the repeater station and the predetermined positioning method Program to function as a means. The program according to claim 28 or 29,
The conditions specific to the repeater station are: a condition for delaying the replicated signal by a delay time specific to the repeater station; a condition for giving a specific intensity ratio to the repeater station for the replicated signal; Including one or more conditions that provide a phase difference inherent to the repeater station;
The predetermined positioning information includes one or more of an intensity ratio, a delay time, or a phase difference of each signal in the signal group with respect to a replicated signal,
The predetermined criterion is a standard in which the intensity ratio with respect to the replicated signal included in the positioning information is an intensity ratio specific to the repeater station, according to the content of conditions specific to the repeater station, the positioning information The reference is the same as the delay time specific to the repeater station for the included duplicated signal, the phase difference for the duplicated signal included in the positioning information is the same as the phase difference unique to the repeater station A program characterized in that if one or more of the criteria are satisfied, the mobile communication terminal is a criterion for communication with the repeater station.   31. The program according to claim 28, wherein one or more repeater stations can be connected to the base station. The program according to any one of claims 28 to 31,
The location information of the mobile communication terminal calculated by the calculation means includes latitude and longitude information of the mobile communication terminal, information on the satellite in the satellite positioning system used when calculating the location information, and the base Station identifier,
The positioning server further includes position information transmission means for transmitting the position information of the mobile communication terminal calculated by the calculation means to the mobile communication terminal, and the mobile communication terminal allows the position information transmission means within a predetermined range. A new position information is calculated based on the position information transmitted by the position information transmitting means.   33. The program according to claim 30, wherein the duplicating unit is installed in any one of the repeater station, the base station, or a connection between the repeater station and the base station. .   34. The program according to claim 28, wherein the predetermined positioning method is a cell-based positioning method or a multiple base station positioning method.   35. The program according to claim 28, wherein the predetermined connection method is a code division multiple access method.   36. The program according to claim 28, further comprising monitoring means for monitoring the operation of the repeater station based on the determination result of the determination means.   A computer-readable recording medium on which the program according to any one of claims 28 to 36 is recorded. A duplication unit used in a position information calculation system for calculating position information of a mobile communication terminal that performs mobile communication using a predetermined connection method, wherein the position information calculation system determines a position of the mobile communication terminal by a predetermined positioning method. A positioning server for positioning based on a method, a base station connected to the positioning server via a network, and a repeater station connected to the base station and relaying between the mobile communication terminals,
The duplication unit generates a duplication signal obtained by duplicating the signal transmitted from the base station based on conditions specific to the repeater station, and the duplication signal and the signal to be duplicated are transmitted by the repeater station,
The copied signal is obtained from signals received by separate receiving units of the mobile communication terminal, and the mobile communication terminal uses the predetermined signal related to the copied signal and a signal group including the replicated signal. Positioning information is sent,
The positioning information is received by the positioning server via the network, and the positioning server determines whether the mobile communication terminal is communicating with the repeater station based on the positioning information and a predetermined criterion. If it is determined that the mobile communication terminal is communicating with the repeater station, the position information of the mobile communication terminal is calculated based on the repeater station position information and the predetermined positioning method. A duplication section characterized by A duplication unit used in a position information calculation system for calculating position information of a mobile communication terminal that performs mobile communication using a predetermined connection method, wherein the position information calculation system determines a position of the mobile communication terminal by a predetermined positioning method. A positioning server for positioning based on a method, a base station connected to the positioning server via a network, and a repeater station connected to the base station and relaying between the mobile communication terminals,
The duplication unit generates a duplication signal obtained by duplicating the signal transmitted from the mobile communication terminal based on a condition specific to the repeater station, and the duplication signal and the signal to be duplicated are transmitted by the repeater station,
The base station transmits predetermined positioning information related to the signal to be replicated and the signal group including the replicated signal,
The positioning information is received by the positioning server via the network, and the positioning server determines whether the mobile communication terminal is communicating with the repeater station based on the positioning information and a predetermined criterion. If it is determined that the mobile communication terminal is communicating with the repeater station, the position information of the mobile communication terminal is calculated based on the repeater station position information and the predetermined positioning method. A duplication section characterized by The duplication unit according to claim 38 or 39,
The conditions specific to the repeater station are: a condition for delaying the replicated signal by a delay time specific to the repeater station; a condition for giving a specific intensity ratio to the repeater station for the replicated signal; Including one or more conditions that provide a phase difference inherent to the repeater station;
The predetermined positioning information includes one or more of an intensity ratio, a delay time, or a phase difference of each signal in the signal group with respect to a replicated signal,
The predetermined criterion is a standard in which the intensity ratio with respect to the replicated signal included in the positioning information is an intensity ratio specific to the repeater station, according to the content of conditions specific to the repeater station, the positioning information The reference is the same as the delay time specific to the repeater station for the included duplicated signal, the phase difference for the duplicated signal included in the positioning information is the same as the phase difference unique to the repeater station The duplication unit, which is a criterion for determining that the mobile communication terminal is communicating with the repeater station when one or more of the criteria are satisfied.   41. The duplication unit according to claim 38, wherein one or more repeater stations can be connected to the base station. The duplication unit according to any one of claims 38 to 41,
The location information of the mobile communication terminal calculated by the positioning server includes latitude and longitude information of the mobile communication terminal, information on the satellite in the satellite positioning system used when calculating the location information, and the base The position information is transmitted to the mobile communication terminal, and the mobile communication terminal newly calculates the position information based on the position information within a predetermined range. Duplicate part to be.   43. The duplication unit according to claim 40, wherein the duplication unit is installed in any one of the repeater station, the base station, or a connection between the repeater station and the base station. Duplicate part.   44. The duplicating unit according to claim 38, wherein the predetermined positioning method is a cell-based positioning method or a multiple base station positioning method.   45. The duplicating unit according to claim 38, wherein the predetermined connection method is a code division multiple access method.   46. The duplication unit according to claim 38, wherein the positioning server further comprises monitoring means for monitoring the operation of the repeater station based on a determination result of the positioning server. A position information calculation method for calculating position information of a mobile communication terminal that performs mobile communication using a predetermined connection method, the positioning server positioning the position of the mobile communication terminal based on a predetermined positioning method, and the positioning A base station connected to a server via a network, and a repeater station connected to the base station and relaying between the mobile communication terminals,
The repeater station
Transmitting a duplicated signal and a signal to be duplicated, which are duplicated by a duplicating unit based on conditions unique to the repeater station, the signal transmitted from the base station;
The mobile communication terminal is
A positioning information transmitting step for transmitting predetermined positioning information related to a signal group including the copied signal and the duplicated signal obtained from signals received by separate receiving units;
The positioning server is
Positioning information receiving step for receiving the positioning information transmitted in the positioning information transmitting step via the network;
A determination step of determining whether the mobile communication terminal is communicating with the repeater station based on the positioning information received in the positioning information receiving step and a predetermined determination criterion;
When the determination step determines that the mobile communication terminal is communicating with the repeater station, a calculation for calculating the position information of the mobile communication terminal based on the position information of the repeater station and the predetermined positioning method A position information calculation method comprising: a step. A position information calculation method for calculating position information of a mobile communication terminal that performs mobile communication using a predetermined connection method, the positioning server positioning the position of the mobile communication terminal based on a predetermined positioning method, and the positioning A base station connected to a server via a network, and a repeater station connected to the base station and relaying between the mobile communication terminals,
The repeater station
Transmitting a duplicate signal and a signal to be duplicated, which are duplicated by a duplication unit based on conditions specific to the repeater station, the signal transmitted from the mobile communication terminal;
The base station is
Positioning information transmission step for transmitting predetermined positioning information related to the signal to be replicated obtained from the received signal and a signal group including the replicated signal;
The positioning server is
Positioning information receiving step for receiving the positioning information transmitted in the positioning information transmitting step via the network;
A determination step of determining whether the mobile communication terminal is communicating with the repeater station based on the positioning information received in the positioning information receiving step and a predetermined determination criterion;
When the determination step determines that the mobile communication terminal is communicating with the repeater station, a calculation for calculating the position information of the mobile communication terminal based on the position information of the repeater station and the predetermined positioning method A position information calculation method comprising: a step. In the position information calculation method according to claim 47 or 48,
The conditions specific to the repeater station are: a condition for delaying the replicated signal by a delay time specific to the repeater station; a condition for giving a specific intensity ratio to the repeater station for the replicated signal; Including one or more conditions that provide a phase difference inherent to the repeater station;
The predetermined positioning information includes one or more of an intensity ratio, a delay time, or a phase difference of each signal in the signal group with respect to a replicated signal,
The predetermined criterion is a standard in which the intensity ratio with respect to the replicated signal included in the positioning information is an intensity ratio specific to the repeater station, according to the content of conditions specific to the repeater station, the positioning information The reference is the same as the delay time specific to the repeater station for the included duplicated signal, the phase difference for the duplicated signal included in the positioning information is the same as the phase difference unique to the repeater station A position information calculation method characterized by being a criterion for determining that the mobile communication terminal is communicating with the repeater station when one or more of the criteria are satisfied.   50. The position information calculation method according to claim 47, wherein one or more repeater stations can be connected to the base station. The position information calculation method according to any one of claims 47 to 50,
The location information of the mobile communication terminal calculated in the calculation step includes latitude and longitude information of the mobile communication terminal, information on the satellite in the satellite positioning system used when calculating the location information, and the base Station identifier,
The positioning server further includes a position information transmission step of transmitting the position information of the mobile communication terminal calculated in the calculation step to the mobile communication terminal,
The mobile communication terminal further comprises a terminal side calculation step for calculating position information based on the position information transmitted in the position information transmission step within a predetermined range.   52. The position information calculation method according to claim 49, wherein the duplication unit is installed in any one of the repeater station, the base station, or a connection between the repeater station and the base station. The position information calculation method.   53. The position information calculation method according to claim 47, wherein the predetermined positioning method is a cell-based positioning method or a multiple base station positioning method.   54. The position information calculation method according to claim 47, wherein the predetermined connection method is a code division multiple access method. 55. The position information calculation method according to claim 47, further comprising a monitoring step of monitoring an operation of the repeater station based on a determination result of the determination step.

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