JPH0693789B2 - Mobile unit position information detection method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to the position of a moving partner (hereinafter also referred to as a mobile device) in a mobile communication system such as a car phone system or a mobile phone system. The present invention relates to a mobile station position information detection method for detecting information.

In such a mobile communication system, there is a case where rather than making a call to the mobile device, it is desired to know the location of the mobile device in some detail. For example, when the courier car is a mobile device loaded with a mobile phone, it may be very convenient if the location of the mobile device can be easily inquired to the telephone station. In such a case, the present invention relates to a mobile station position information detection method for enabling a telephone station to provide a service that responds to such a request.

[Conventional technology]

FIG. 3 is an explanatory diagram showing an example of a conventional mobile communication network configuration. In the figure, 101 is a fixed network, 121 and 122 are mobile communication exchanges (stations), 131, 132, 133, 134, 135 and 136 are radio base stations, 141 and 142 are home memories, 151, 152, 153, 154, 155 and 156.
Is a wireless zone, 161,162 is a switching control zone, 171,172 is a fixed network-mobile communication switch line, 173,174,175,177,178,17
Reference numeral 9 is a line between the mobile communication exchange and the radio base station, and 181 is a mobile device.

In FIG. 3, the mobile station 181 makes a call or the exchange control zone 161.
Location information from mobile device 181 to mobile device 162,
It is registered in the home memory accommodating the 181 such as the home memory 141 for each exchange control zone.

When an incoming call is received from the fixed network 101 to the mobile communication switch 121 via the fixed network-mobile communication switch line 171, the mobile communication switch 121
Based on the position information in the home memory 141 of the mobile device 181, makes a simultaneous call to the radio base stations 131, 132, 133 by an incoming connection signal for general connection, and the radio base station having the highest level of the response signal from the mobile device 181. , For example, a radio base station
The line 173 to 131 is selected, a call signal is sent to the subscriber of the mobile device 181, a response from the subscriber is held, and a call is started after the subscriber answers. That is, in the incoming call connection, not the position information in units of the exchange control zone of the mobile device, but the position information more detailed than that (for example, the position information in units of wireless zones) is not registered.

[Problems trying to solve the invention]

As described above, the conventional method has a drawback in that even if a detailed location information inquiry is made from the telephone network, only the location information for each exchange control zone is known and the answer cannot be answered. Also, in order to be able to answer, if a system that sends a location registration signal to the exchange every time the mobile unit crosses from one wireless zone to another wireless zone is adopted, in that case, the control line of the wireless section is used. However, there is a problem that the call control signal is compressed by the traffic for registering the position information.

It is an object of the present invention to provide a mobile station position information detection method that enables detailed location information of a mobile station to be detected without compressing a call control signal.

[Means for solving problems]

In the present invention, as a signal for calling the mobile unit from the mobile communication exchange, an instruction to return a response signal for detecting only the radio base station existing in the mobile unit in addition to the incoming call signal for performing a general incoming connection is provided. A position information call signal is provided.

[Operation] It is possible to finely identify the location of the mobile device only when necessary without registering the position in units of the radio base station each time the mobile device moves and the radio base station changes. It is now possible to provide location information guidance for each wireless base station in response to information inquiries.

〔Example〕

FIG. 1 is a block diagram showing an embodiment of the present invention. In the figure, 1 is a fixed telephone, 2 is a fixed network, 3 is a fixed network 2.
And a mobile communication switch 4, a mobile communication switch 4, a mobile communication switch 5, an incoming trunk device accommodating a communication selection 3 from the fixed network 2, 6 a switch network, 7 a fixed network 2
A dial signal receiver for receiving a dial signal sent from, 8 is a PB signal receiver for receiving a second dial, 9 is a voice synthesizer for performing voice guidance under the control of the control device 10, and 10 is a mobile device. A control device controlling the telecommunication exchange 4, 11 is a control election for the mobile telecommunication exchange 4 and the radio base station 14, 12 is a control election for the telecommunication switch 4 and the radio base station 15, and 13 is a mobile telecommunication exchange 4. Control base station 16 for wireless base station 16; wireless base stations 14, 15 and 16; wireless control station 17 common to each wireless base station; and mobile station 18.

FIG. 2 is an explanatory diagram showing an example of a control sequence of one embodiment of the present invention. In the figure, 21 is an incoming signal, 22 is a dial signal, 23 is a second dial request for instructing the fixed telephone 1 to input the number of the mobile unit for which position information is desired, 24
Is a second dial signal which is the mobile unit number input from the fixed telephone 1, 25 is a position information request signal including the mobile unit number of the mobile unit 18 for which position information is desired, and 26 is a mobile unit for which position information is desired.
Location information call signal including mobile number of 18 and mobile station 18
, A position information response signal including the mobile device number, 28 is a position information signal including the mobile device number of the mobile device 18, 29 is position information guidance guided by the voice synthesizer 9, and 30 is a disconnection signal from the fixed network. . An embodiment of the present invention will be described below with reference to FIGS. 1 and 2.

When using the location information notification service, the fixed telephone 1 dials (mobile service designation number + location information notification service number) (for example, a special number such as 123). The fixed network 2 activates the trunk device 5 of the mobile communication exchange 4 on the line 3 connected to the mobile communication exchange 4 from the mobile service designated number dialed from the fixed telephone 1 and sends out the position information notification service number.

The control device 10 of the mobile telecommunication switch 4 monitors the incoming trunk device 5, and when it detects the incoming signal 21 from the fixed network 2, it controls the switch network 6 to connect the communication line 3 and the dial signal receiver 7, The dial signal 22 sent from the fixed network 2 is received.

The control device 10 that has received the dial signal 22
22 is analyzed, and if it is not the location information notification service number (for example, a special number such as 123), an ordinary incoming signal is sent to the wireless base station to perform incoming connection. If the location information notification service number is the result of analysis of the dial signal, the control device 10
Controls the switch network 6, connects the communication line 3 to the voice synthesizing device 9, operates the voice synthesizing device 9, and inputs the mobile unit number for which the fixed number 1 user wants the position information by the PB signal. The second dial request 23 is made by giving guidance. After that, the control device 10 controls the switch network 6 to connect the communication line 3 and the PB signal receiver 8 to monitor the second dial sent from the fixed telephone 1.

After confirming the second dial request 23, the user of the fixed-line telephone 1 inputs the mobile device number for which the position information is desired as the second dial signal by the PB signal.

When the PB signal receiver 8 receives the second dial from the user of the fixed-line telephone 1, the control device 10 of the mobile communication exchange 4 causes the radio base stations 14, 15, 16 controlled by the mobile communication exchange 4 to receive the second dial. On the other hand, a position information request signal 25 including the mobile station number of the mobile station 18 which the user of the fixed telephone 1 dialed by the PB signal receiver 8 wants to receive the location information is sent out, and a request is made to perform a simultaneous call. To do.

Receiving the position information request signal 25, each wireless base station 14, 15, 16 uses the common wireless control line 17 for each wireless station 14, 15, 16 which is constantly monitored by the mobile device, and the mobile device 18 moves. The position information calling signal 26 including the machine number is transmitted to carry out simultaneous calling.

The mobile device 18 constantly monitors the wireless control circuit 17. When the mobile unit 18 receives the position information calling signal 26 on the wireless control line 17, the mobile unit 18 checks the mobile unit number included in the signal, and if the mobile unit number matches the own mobile unit number, the position information including the own mobile unit number is received. The response signal 27 is transmitted through the wireless control line 17.

When each wireless base station 14, 15, 16 receives the position information response signal 27 on the wireless control line 17, the position information signal 28 including the received electric field strength information of the signal and the received mobile unit number wireless base station number 28. A control line 1 connected to the mobile switching center 4
Send at 1,12,13.

The control device 10 of the mobile communication switchboard 4 includes the radio base stations 14, 15, 16
The received electric field strength information of the position information response signal 27 of the position information signal 28 including the mobile unit number of the mobile unit 18 transmitted from the mobile station 18 is inspected, and the most strongly received radio base station (here, the radio base station 14 (Assuming the strongest information is from), select 14 and identify that the radio base station has a mobile device. After that, the controller 10 controls the switch network 6 to connect the communication line 3 and the voice synthesizer 9. Then the controller
10 is a message that controls the voice synthesizer 9 and informs that the mobile device 18 is in the area of the radio base station 14 (for example, an announcement saying "Otazune's mobile device is in the area of Chiyoda Ward"). Is sent.

A user of the fixed-line telephone 1 can use the mobile unit 18 from the mobile communication exchange 4.
When you confirm the message in the area where you are currently in, end the call. When the fixed network 2 detects the end of the fixed telephone 1, the fixed network 2 sends a disconnection signal to the mobile communication exchange 4 through the communication line 3. When the trunk device 5 detects the disconnection signal 30 of the communication line 3, the control device 10 of the mobile communication exchange 4 stops the operation of the voice synthesizing device 9 and then controls the switch network 6 to connect the communication line 3 and the voice synthesizing device 9. Disconnect the connection between.

As described above, the location of the mobile device can be detected in units of wireless base stations only when necessary without constantly performing location registration in units of wireless base stations, and detailed location information notification guidance can be implemented. Is.

〔The invention's effect〕

As described above, according to the present invention, a general incoming call and a service for which only position information is known are identified by connecting to the exchange with a service identification number from the fixed network, and in addition to the general incoming signal, the position By providing a signal for information request,
It is possible to detect the in-vehicle position of the mobile device in units of wireless base stations only when necessary without constantly performing position registration in units of wireless base stations, and to provide detailed position information notification guidance. Further, at this time, it is possible to know the current location of the target mobile device in units of radio base stations with simple control without causing the mobile device to ring.

[Brief description of drawings]

FIG. 1 is a block diagram showing an embodiment of the present invention, FIG. 2 is an explanatory diagram showing an example of a control sequence thereof, and FIG. 3 is a block diagram showing a configuration example of a conventional mobile communication network. Explanation of symbols 1 ... Fixed telephone, 2 ... Fixed network, 3 ... Communication line, 4 ...
… Mobile communication switch, 5 …… Incoming trunk device, 6 …… Switch network, 7 …… Dial signal receiver, 8 ……
PB signal receiver, 9 ... Voice synthesizer, 10 ... Control device,
11,12,13 …… Control line, 14,15,16 …… Wireless base station, 17…
… Wireless control line, 18 …… Mobile unit.

 ─────────────────────────────────────────────────── ─── Continued Front Page Examiner Toshiyuki Ikeda

Claims (1)

[Claims] 1. A mobile switching center having a home memory,
The exchange control zone in which the mobile unit is located is registered in the memory, and when the incoming connection is made to the mobile unit, the exchange control zone in which the mobile unit is located is determined by the information read from the memory at the mobile communication switching center. In the mobile communication system in which the wireless base station in the zone makes a call to the mobile device, the mobile device position information that wants to know the location of a certain mobile device in a unit smaller than the control zone unit. Is made to the mobile switching center, the mobile switching center
As in the case of the incoming connection, the exchange control zone in which the mobile station is located is known from the information read from the home memory, and the wireless base station in the zone is set separately from the incoming connection signal. By sending a position information request signal, those wireless base stations call the mobile station, the response is received by the mobile communication switching center via the wireless base station, and the mobile station is related to the received response information from the received response information. A mobile station position information detection method characterized by detecting desired position information.