JPH09130862A - Mobile communication system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable the use of a PHS with a small service zone in a high-speed mobile object such as a traveling train. SOLUTION: A base station 4 receiving a signal from a terminal(PHS) 1 and a first converter 12 converting information from this base station 4 are mounted to the mobile object 11 such as a train. A second converter 18 receiving a signal from the first converter 12 is installed at a mobile communication network 15 on a fixed side and this is connected to a network 8 composed of an exchange network 9 and a data base 10. An input device 19 such as a keyboard or a card reader is connected to the data base 10. The base station 4 and the network 8 are connected through a wire circuit conventionally but radio communication is attained through the use of radio wave.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mobile communication system applied to a simple mobile phone system (PHS) or a mobile phone.

[0002]

2. Description of the Related Art PHS (Personal Handyphone System) is one of the mobile communication systems that has recently spread as a simple mobile phone system. This is also called a second-generation cordless telephone (see Japanese Unexamined Patent Publication No. 6-152511) or a small zone mobile communication system (see Japanese Unexamined Patent Publication No. 5-14270). It is said that there is a big difference in that the service zone is narrow. That is, in the conventional mobile phone, the service zone is wide, and thus it is possible to make a call while moving at a high speed. On the other hand, the PHS has a narrow service zone, and therefore when used while moving at a high speed, a short time is required. It becomes impossible to call. However, even in the case of mobile phones, there are dead zones due to the location of base stations and the presence of tunnels.
Calls may be forcibly disconnected.

On the other hand, whether it is a PHS or a mobile phone,
The condition is that the communication terminal (PHS or mobile phone body; hereinafter referred to as a terminal) that is allowed to make a call is a legally registered one, and there is no problem in the payment of charges in the past. Therefore, when the user turns on the power switch of the terminal to make a call, or when the user turns on the power switch and dials for a call, whether or not the communication terminal is properly registered, It will be confirmed whether there are any problems in payment of fees.

A conventional PHS will be described with reference to FIG. The figure shows a system configuration when a mobile terminal makes a call to and receives another telephone, and a sequence showing a signal flow in this system configuration. Reference numeral 1 is a terminal, which is a PHS in this case. The terminal 1 is composed of a main body 2 and an antenna 3, and the main body 2 has an individual I
Information such as D and a telephone number is stored. When the power switch is turned on, the information becomes a radio wave having a predetermined frequency and is radiated into the air from the antenna 3.

Reference numeral 4 is a base station. This base station 4 is also the main body 5
And an antenna 6, and the antenna 6 exchanges information with the antenna 3 of the terminal 1. Information exchange will be described later. The base station 4 is connected to the switching network 9 in the network 8 by a wired line 7. The network 8 comprises a switching network 9 and a database 10. In the figure, the base station 4 and the switching network 9 are connected by a wired line 7, but in reality, the switching network 9 has a large number of base stations 4.
Is connected.

[0006] The database stores all the communication ID data for a large number of contracted terminals,
It can be pulled out whenever necessary.

The operation of the conventional one having such a configuration will be described. First, when the terminal 1 dials the other party's number to make a call, the signal is radiated from the antenna 3 and received by the antenna 6 of the base station 4. This is call setup. The base station 4 transmits this call setting signal to the network 8 via the wired line 7. Upon receiving this signal, the network 8 immediately makes an authentication request to the base station 4. The base station 4 returns this authentication request to the terminal 1.

Then, the terminal 1 performs an authentication calculation, sends the result as an authentication response to the base station 4, and the base station 4 sends it as an authentication response to the network 8. The network 8 collates the signal with the answer stored in the database 10, and if there is no error in the result, the line is set, the line is connected, and the call can be made. If there is an error, the circuit is disconnected and the call becomes impossible.

Next, the incoming call will be described. In this case, the line setting is entered into the network 8 from the outside. The network 8 sets up the call for the base station 4, and the base station 4 sets up the call for the terminal 1. When the terminal 1 performs the authentication calculation, the result is sent to the base station 4 as an authentication response, and the base station 4 sends it to the network 8. The network 8 verifies the authentication, and if there is no error in the result, the line connection processing is performed and the telephone call can be made.

[0010]

The conventional PHS operates in this manner, but since the base station 4 and the switching network 9 of the network 8 are connected by the wired line 7 for both outgoing and incoming calls, the base station It is only possible to communicate within a certain range centered on 4 and, when the service zone of one base station 4 is deviated and the service zone of another adjacent base station 4 is entered, it is necessary to continue the call. . In this case, switching may be performed without interruption if it is a gentle movement such as walking, but when using while moving at high speed such as use in a car or railroad car, at that time There is a problem that the call is cut off. In addition, there is a problem that a call is forcibly disconnected even in a mobile phone or the like depending on the arrangement of base stations, the presence or absence of a tunnel, and the like.

As a method for solving the above problem, it is conceivable to install a base station on a mobile unit, but in that case, it is necessary to connect the base station and the switching network of the network by a wireless line. However, the transmission capacity of a wireless line connecting a moving body such as a train to the ground is not so high as compared to a wired line, and it is not always necessary to provide the capacity necessary for transmitting information exchanged between a base station and a network switching network. I don't have it.

The present invention has been made in view of this point, and an object of the present invention is to provide a mobile communication system in which a PHS or a mobile phone can be used even in a moving body such as a railcar, a bus, or a ship. is there.

[0013]

As a means for solving the above-mentioned problems, the present invention, in the invention described in claim 1, exchanges information between a communication terminal and a base station by radio waves. Together with a base station and a mobile communication network having a database, by exchanging information about the communication terminal, in a mobile communication system for determining whether to permit or disallow the use of the communication terminal, a railway vehicle, a bus, or The mobile station such as a ship is provided with the base station, a first converter for converting an output signal of the base station, and an antenna for radiating the output of the first converter into the air. At the front stage of our network, an antenna for exchanging radio waves with the antenna mounted on the mobile unit,
A second conversion device for inversely converting a signal received by the antenna into a signal of the base station is connected, and information is exchanged between a communication terminal in a mobile body and a database of a mobile communication network. Is characterized by.

In the invention described in claim 2, information is exchanged between the communication terminal and the base station by radio waves, and the communication terminal is related to the base station and the mobile communication network having a database. In a mobile communication system that exchanges information and decides whether to permit or disallow the use of the communication terminal, the time required for exchanging information between a base station in a moving body such as a railcar, a bus, or a ship and a database is set. It is characterized in that the caller is made to stand by with a predetermined guidance voice, message, or silence.

In the invention described in claim 3, the communication first I registered in the database in advance by the input device.
The D data and the additional ID data are registered in advance in the network of the mobile communication network and the first conversion device mounted on the mobile body, and the communication terminal is configured to transmit the first data via the base station in the mobile body.
The authentication device is authenticated by the communication first ID data, and the first conversion device and the network are configured to determine whether the call is possible or not based on the communication first ID data and the additional ID data. .

According to the invention described in claim 4, in the communication first I registered in the database in advance by the input device.
The D data and the additional ID data are registered in advance in the first conversion device and the second conversion device mounted on the network of the mobile communication network and the mobile body, and the communication terminal is configured to store the data via the base station in the mobile body. The communication first to the first converter
Authentication is performed by the ID data, and the second conversion device communicates with the network and the communication second I assigned to the second conversion device.
It is characterized in that authentication is performed by the D data, and whether or not the call is possible is determined based on the result and the communication first ID data and the additional ID data.

In the invention described in claim 5, the communication terminal exchanges information for authentication confirmation with the first conversion device, and when the temporary authentication is completed, the information is requested to be authenticated. Is sent to the network as an authentication response signal from the network to the first conversion device, and when the first conversion device confirms that the communication is authenticated, the call is made available. .

In the invention described in claim 6, the call transfer service related to the communication terminal is registered in advance in the network, and when the communication terminal receives a call to the network, the call transfer service enables the general public network to be switched. It is characterized in that it is configured to be able to receive a call to the second conversion device via the communication terminal and communicate with the communication terminal.

In the invention described in claim 7, the communication terminal exchanges information for authentication confirmation with the first conversion device, and the first conversion device transmits to the second conversion device. A location registration request is made to the second conversion device, and the communication ID data of the communication terminal and the communication ID data previously given to the second conversion device are associated with each other and registered in the database, and are then registered in the network. When an incoming call arrives, the second conversion device has a communication ID assigned in advance to the second conversion device.
The communication terminal receives the data and the communication terminal receives the communication ID of the communication terminal.
It is characterized in that it is configured so that a call can be made by receiving an incoming data.

According to the first aspect of the present invention, when a dial is made from a PHS in a moving body such as a railroad car, a bus or a ship to an external telephone,
A series of procedures such as authentication starting from the dial operation is performed via radio waves in the middle. Also, in the call after the end of authentication, information is exchanged between the terminal and the base station and between the base station and the first conversion device in the mobile body, and the connection between the first conversion device and the second conversion device is made respectively. Radio waves will be transmitted through the antenna. The invention described in claims 3 to 7 newly invents a communication procedure up to a call.

[0021]

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of the present invention will be described below with reference to FIG. 1 and with the same parts as in FIG. In the present invention, the base station 4 is mounted on the moving body 11 such as a railroad vehicle, a bus or a ship. Moving object 11
In addition to this, the first conversion device 12, the wireless device 13, and the antenna 14, which are required in the present invention, are mounted on the device. Power is supplied from the vehicle. Since the terminal 1 is a PHS terminal and is held by the user, it is always outside the mobile unit 11, but when the mobile unit 11 is used, the terminal 1 is brought in, so naturally it is inside the mobile unit 11.

Reference numeral 15 is a mobile communication network. The mobile communication network 15 is provided with an antenna 16, a wireless device 17, and a second conversion device 18 required by the present invention. The same applies to the network 8 including the switching network 9 and the database 10 connected to the second conversion device 18. That is, the major difference from the prior art shown in FIG.
In the past, the base station 4 and the switching network 9 were connected by the wired line 7, but in the case of the present invention, a radio wave communication means is interposed therebetween.

Reference numeral 19 is an input device. This input device 19
Is for the user of the terminal 1 to input information such as his / her additional ID and communication first ID into the database 10 before attempting to use the terminal 1 by riding the Shinkansen, for example. , Cards whose passwords are stored in magnetic storage means (such as credit cards)
Can be done by passing through a card reader installed in the station yard, etc.
It is input using a keyboard installed in a station yard or the like. You may install a dedicated keyboard,
It is also possible to use the key of a public telephone. If the information input to the database 10 is deleted at the last time (24:00) of the input day, the capacity of the database 10 does not need to be unnecessarily increased.

The operation of the mobile communication system thus configured will be described. A user of the terminal 1 has a terminal (PHS main body), and before boarding a moving body such as a train, by a keyboard or a card reader installed on a platform or the like,
Inputs its own data into the database 10. The data input here are the communication first ID data which is a legally registered telephone number, and the additional ID data indicating whether there is any problem in the payment of the charges until then. If there is a problem with payment of the fee, it will be put on a so-called blacklist and transmission and reception will be impossible until the situation is resolved.

As a method of inputting the above-mentioned data, in addition to this, it is also possible that the business operator registers at the time of purchasing or contracting the PHS and thereafter the user does not have to perform any special operation.

When the input is completed, board a moving body such as a train. After that, send or receive as necessary. At this time, the first conversion device 12, the wireless device 13, the wireless device 17, and the second conversion device 18 perform the function of changing to the wired line 7 in FIG. 7.

2 to 6 show the operating procedure performed by using the system configuration shown in FIG. 1, and correspond to claims 3 to 7, respectively. In each drawing, the lines between the components below the circuit indicate the action of the components, and the arrows indicate the direction of information flow. Also,
The numbers in parentheses indicate the operating sequence. Claim 2 corresponds to all of FIGS. 2 to 6.

The one shown in FIG. 2 corresponds to claim 3. In this case, the communication first ID data and the additional ID data are registered in the network 8 from the input device 19, and at the same time, registered in the first conversion device 12. When the terminal 1 dials to make a call, the first conversion device 12 acts on behalf of the network 8 for call setting, authentication request, etc., which is started by the dialing.

Authentication request, authentication calculation, and authentication response are also first
When the authentication is completed between the first conversion device 12 and the terminal 1, the first conversion device 12 transmits the second conversion device 1 by radio waves.
The information is sent to 8, and at the same time, connection processing is performed to enable communication between the terminal 1 and the first conversion device 12. At this time, the first conversion device 12 sends to the terminal the above-mentioned predetermined guidance voice, for example, a message such as "Please wait for a while because the other party is connected". With this message, the user can be notified of the waiting time (corresponding to claim 2).

When the terminal 1 is already registered on the side of the network 8 and it is determined that there is no problem, the line setting and connection processing are performed, and then the call becomes possible.

The one shown in FIG. 3 corresponds to claim 4. In this case, the communication first I from the mobile communication network side
The D data and the additional ID data are registered in the network 8 and the first conversion device 12. As a result, FIG.
In this case, it is judged whether or not the terminal 1 is registered in the network 8, and if there is no problem as a result, the call can be made immediately, but in the case of FIG. 3, the second conversion device 18 is used. It is determined whether or not the terminal 1 is registered, and if there is no problem as a result, a call is set up for the network 8 and a second authentication calculation is performed upon receiving an authentication request. If there is no problem in the result of the authentication calculation, the call can be made.

The one shown in FIG. 4 corresponds to claim 5. In this case, unlike the ones shown in FIGS. 2 and 3, the communication first ID data and the additional ID data from the mobile communication network side are not registered in the second converter 18 in the first converter 12. Therefore, the first conversion device 12
Tentatively authenticates the terminal 1, and when the tentative authentication is completed, first issues an authentication request to the network 8 side. As a result, if the authentication is obtained, the call becomes possible.

What is shown in FIG. 5 and FIG.
It mainly corresponds to the incoming call. Of these, the one shown in FIG. 5 has an incoming call forwarding service registered in advance in the terminal 1, and when an incoming call is received, the incoming call is received by the second conversion device 18 via the general public network 20 by the forwarding service. Will be able to talk. For the individual work, refer to the above explanation.

The one shown in FIG. 6 corresponds to claim 7. The major feature in this case is that the second conversion device 18
Is to have independent communication second ID data, and is associated with the communication first ID data of a plurality of terminals 1. The second conversion device 18 issues a location registration request to the network 8 for the correspondence.
The network 8 issues an authentication request to this. The second conversion device 18 performs authentication calculation and outputs the result to the network 8 as an authentication request response. If there is no problem in the result, the location registration acceptance is completed.

When the network 8 receives an incoming call from the outside and the incoming call signal is sent to the second converting device 18, the second converting device 18 receiving the incoming signal receives a plurality of signals which have been temporarily authenticated. The terminal 1 that has received the incoming call is searched. When the relevant terminal 1 appears by the search, connection processing is performed with the terminal, and the call becomes possible. According to this method, since the network 8 exchanges information with the second conversion device 18 that does not move around, it is not necessary to always perform position registration.

[0036]

The present invention is a mobile communication system configured as described above, and has a configuration as described in claim 1. The usage pattern is as described in claims 2 to 7. Since the base station can be installed in a moving body such as a train, the PHS from a high-speed moving body that cannot be used conventionally can be used. In mobile phones and the like, calls were sometimes disconnected due to the arrangement of base stations and the presence / absence of tunnels, but this is resolved and continuous good calls become possible.
Further, according to the invention described in claim 2, the serviceability during the time when the telephone call is not actually made is improved, and it is not cut off due to the time constraint as the simultaneous operation. Further, according to the inventions described in claims 3 to 7, it is possible to make a call using the service area of another carrier without making a roaming contract which is conventionally required.

[Brief description of the drawings]

FIG. 1 is a circuit diagram of an embodiment of the present invention.

FIG. 2 is an explanatory diagram illustrating a usage pattern of the system configuration of FIG.

FIG. 3 is an explanatory diagram illustrating another usage pattern of the system configuration of FIG.

FIG. 4 is an explanatory diagram illustrating another usage pattern of the system configuration of FIG.

5 is an explanatory diagram illustrating another usage pattern of the system configuration of FIG. 1. FIG.

FIG. 6 is an explanatory diagram illustrating still another usage pattern of the system configuration of FIG. 1.

FIG. 7 is an explanatory diagram illustrating a conventional system configuration.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 terminal 3 antenna 4 base station 8 network 9 switching network 10 database 11 mobile body 12 first conversion device 14 antenna 15 mobile communication network 16 antenna 18 second conversion device 19 input device 20 general public network

Claims (7)

[Claims] 1. Information is exchanged between a communication terminal and a base station by radio waves, and information regarding the communication terminal is exchanged between the base station and a mobile communication network having a database to perform the communication. In a mobile communication system for deciding whether to permit or prohibit the use of a terminal, the first conversion device and the first conversion device for converting the base station and an output signal of the base station to a moving body such as a railroad car, a bus, or a ship. An antenna for radiating the output of the converter of the above into the air is installed, and an antenna for transmitting and receiving radio waves to and from the antenna mounted on the mobile body is provided in the front stage of the network of the mobile communication network, and the antenna. It is characterized in that a second conversion device for converting the signal received in step 2 into the signal of the base station is connected to exchange information between the communication terminal in the mobile body and the database of the mobile communication network. Mobile communication system to be considered. 2. Information is exchanged between a communication terminal and a base station by radio waves, and information about the communication terminal is exchanged between the base station and a mobile communication network having a database to perform the communication. In the mobile communication system that decides whether to permit or disallow the use of the terminal, the sender is given a predetermined information about the time required for exchanging information between the base station in a moving body such as a railway car, bus or ship and the database. A mobile communication system characterized by being configured to stand by by voice, message, or silence. 3. The communication first ID data and the additional ID data registered in the database in advance by the input device are registered in advance in the network of the mobile communication network and the first conversion device mounted on the mobile body, and the communication terminal is The communication first ID is transmitted to the first conversion device via a base station in a moving body.
A mobile communication system characterized in that authentication is performed based on data, and the first conversion device and the network are configured to determine whether or not a call is possible based on the communication first ID data and the additional ID data. 4. The communication first ID data and the additional ID data registered in the database in advance by the input device are registered in advance in the first conversion device and the second conversion device mounted on the network of the mobile communication network and the mobile body. The communication terminal authenticates the first conversion device with the communication first ID data via the base station in the moving body, and the second conversion device is connected to the network and the second conversion device. A mobile communication method, characterized in that authentication is performed by using the assigned communication second ID data, and whether or not a call is possible is determined based on the result and the communication first ID data and additional ID data. 5. The communication terminal exchanges information for authentication confirmation with the first conversion device, and when temporary authentication is completed, sends the information to the network as an authentication request, and the authentication is performed from the network. A mobile communication system, characterized in that a response signal is returned to the first conversion device, and when the first conversion device confirms that authentication has been completed, a call is made possible. 6. An incoming call transfer service for a communication terminal is registered in advance in a network, and when an incoming call arrives at the network for the communication terminal, the incoming call transfer service is used by the second conversion device via the general public network. A mobile communication system characterized in that it is configured to receive an incoming call and be able to talk with the communication terminal. 7. The communication terminal exchanges information for authentication confirmation with the first conversion device, the first conversion device sends a location registration request to the second conversion device, and The second conversion device associates the communication first ID data of the communication terminal with the communication second ID data pre-assigned to the second conversion device and registers it in the database. Of the second conversion device receives the communication second ID data given in advance to the second conversion device, and the communication terminal receives the communication first ID data of the communication terminal to enable communication. A mobile communication method characterized by.