JP2737274B2 - Mobile communication system - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention includes a mobile exchange connected to a public communication network and serving as a radio base station, and a mobile terminal connected to the exchange via radio waves. The present invention relates to a mobile communication system.

[Conventional technology]

In the conventional mobile communication system, a usage fee for the public communication network is imposed on the public communication network for each subscriber number assigned in the public communication network, and a fee for mobile communication is also subscribed to by the mobile exchange. Are tabulated by user number.

FIG. 8 is a block diagram showing an example of the prior art. As shown in FIG. 8, the mobile switching center 9 is a subscriber-based charge totaling unit.
90, and connects to a plurality of mobile terminals 8 via radio waves from a radio base station 51, while connecting to the public communication network 6,
The mobile terminal 8 is called by the subscriber number of the public communication network 6 which is individually assigned. With regard to charging of the transmission from the mobile terminal 8, the mobile exchange 9 collects the charges for each subscriber number by the subscriber corresponding charge totaling section 90 and charges the subscriber.

[Problems to be solved by the invention]

With the spread of mobile communication systems, car rental with mobile terminals, and moreover, mobile terminals are expensive (subscription fees, purchase costs, etc.), and personal lending is about to be implemented.

Therefore, it has been desired to realize a mobile communication system that can receive a call to a short-term user without fail while maintaining the subscriber number of the mobile terminal unchanged and can charge a fee.

However, since the conventional mobile communication system as described above is configured to be called and charged by a subscriber number in a public communication network given to each mobile terminal, the mobile terminal When used by unspecified persons for a short period of time, such as "lending", there is a problem that a call is received to a previous user under a fixed telephone number, and that it is easy for errors to occur in the settlement of charges. there were.

An object of the present invention is to provide a mobile communication system which solves the above-mentioned problems by adding a personal identification code to each user in addition to a subscriber number to a mobile terminal.

[Means for solving the problem]

The basic means of the mobile communication system according to the present invention is to add a password to a subscriber number given in a public communication network to each predetermined mobile terminal in advance, and to receive a subscriber number when the mobile terminal receives a call. A mobile exchange that calls a mobile terminal assigned with this subscriber number and waits for a response only when the personal identification code received next matches the password added to the received subscriber number; and a mobile terminal. And charging means for imposing a communication fee for each personal identification code added to the subscriber number.

One embodiment of the basic means is that the mobile terminal, when the personal identification code received at the time of calling is coincident with the personal identification number registered in advance, sounds a preliminary signal and returns a response signal. The provision of a password collating unit for returning a mismatch signal in the case of a mismatch while preparing is provided.

Another embodiment is that the mobile terminal receives billing information when the inserted prepaid card has a balance and a communication charge is imposed by dialing, for example, billing information received by a public telephone. Pulse to reduce the balance of the prepaid card.

Still another embodiment is that, when the mobile exchange receives the subscriber number and the password of the mobile terminal, the received password is registered in advance with respect to the subscriber number. If the password does not match, the mobile terminal to which the receiving subscriber number is assigned is called, while if the password does not match, a password matching unit is returned to the calling party.

Still another embodiment is that the mobile switchboard is
A billing index storage unit that translates the dialed subscriber number received from the mobile terminal and outputs a billing index; An operation unit;
A password code totaling unit for counting the communication fee for each password.

One of the detailed means to the first embodiment is
When the mobile exchange receives a code mismatch signal from a mobile terminal via a radio wave signal path, the mobile switch converts the code into a predetermined mismatch message and transmits the message to the caller via the communication path. Another one is to convert a code mismatch signal received by the mobile terminal into a mismatch message and send it to a caller via a communication path.

Further, one of the detailed means for the second embodiment is:
A charging index storage unit for storing the charging index for each dial number, a charging pulse generating unit for generating charging information determined by the charging index (for example, a charging pulse received by a public telephone), A charge collection unit for reducing the balance of the inserted prepaid card.

Next, the second basic means is that the mobile exchange returns a charging index translated from the originating dial number to the calling mobile terminal via a radio wave in response to the call from the mobile terminal,
A billing pulse generator for the mobile terminal to insert and transmit a prepaid card and to generate a billing pulse by itself based on a billing index received from the mobile exchange; and reduce the balance of the prepaid card by receiving the billing pulse. A charge collection unit that collects communication charges, and, when an incoming call is received, a password is added to a predetermined subscriber number in advance, and when a predetermined subscriber number is received, a password to be received next is already received. Only when the password coincides with the password added to the subscriber number, is there provided a password verification unit which activates the ringing of the calling signal and waits for a response.

[Action]

In the mobile communication system of the present invention according to the above-described means, when an incoming call to the mobile terminal is received, when the personal identification code corresponding to the subscriber number is received, the mobile terminal is called by a ringing by a call signal. Calling by calling can be performed by at least one of charge summarization and charge collection by the subscriber number and the password.

〔Example〕

 Next, the present invention will be described with reference to the drawings.

FIG. 1 is a block diagram showing one embodiment of the present invention.
In the mobile communication system, the mobile terminal 1 is connected to a wireless base station 51 via a radio wave, and this connection control is performed by the mobile exchange 5.
Runs.

The mobile terminal 1 includes an antenna 10 for transmitting and receiving a radio wave,
PIN code collating section 20 and charge collecting section 30 as a charging means
Having. The personal identification code collating unit 20 compares the personal identification number added to the subscriber's cipher with the received personal identification number and compares it with the received personal identification number. . Details will be described later with reference to FIG. The toll collection unit 30 receives a billing index (billing pulse) from the mobile switching center 5 using a prepaid card, for example, and reduces and displays the remaining amount of the card by a unit fee. A specific example of the mobile terminal 1 will be described later with reference to FIGS.

The mobile switchboard 5 is connected to the public communication network 6, handles incoming and outgoing calls to and from the public communication network, and accommodates a plurality of mobile terminals 1 to be accommodated.
And the antenna 50 of the wireless base station 51 and the antenna 10 of the mobile terminal 1 are connected via a radio wave.

FIG. 2 is a block diagram showing another embodiment of the present invention. In FIG. 2, the mobile switching center 4 has a security code collating unit 20 and a security code charge totaling unit 70 as a billing means. One is to the public communication network 6 and the other is via a radio base station 51 and an antenna 50. Connect to mobile terminal 8. The mobile terminal 8 is connected by a radio wave between the radio base station 60 and the antennas 10 and 50 as in the related art, and is controlled by the mobile exchange 4. The PIN code collating unit 20 will be described with reference to FIG. 3, and the PIN code charge totaling unit 70 will be described with reference to FIG.

FIG. 3 is a block diagram showing an example of the reference code collating unit. The security code collating unit 20 is connected to a security code storage unit 21 that stores and registers a security code in advance. When receiving the personal identification code, the personal identification code collating part 20 collates the personal identification code with the personal identification code registered in the personal identification code storage part 21, and outputs a coincidence signal when they coincide with each other, and outputs a non-coincidence signal when they do not coincide with each other. As shown in FIG.
If it is included in the mobile exchange 4, the password storage 21
, A password is registered for each subscriber number.

FIG. 4 is a block diagram showing an example of a security code charge totaling unit. The secret code fee totaling unit 70 stores a total fee value for each combination of the subscriber number and the personal identification number assigned to the mobile terminal, and includes a charging index storage unit 71 and a fee calculating unit 72 for calculating the fee. Charging index storage unit 71 stores a charging index for each dial number (called subscriber number) at the time of calling, inputs a subscriber number by outgoing dial, and outputs a charging index to fee calculating unit 72. The charge calculation unit 72 calculates a communication charge based on the received clock pulse and the charge index during the period from the reception of the response signal to the reception of the end signal for the call receiving the charge index, and after the reception of the end signal. The communication fee is output to the security code fee totalizing unit 70. The security code fee totaling unit 70 records the communication fee and the charging information such as the connection destination, communication date, and communication time for each security code including the subscriber number, and executes the accumulation of the communication fee. Output. When a charge is stored, the integrated value of the communication charge excluding the charge information for the stored charge is output and displayed, and all data of the charge information is printed out upon request, but these means do not limit the present invention.

Although the security code charge summation unit 70 is included in the mobile exchange 4 in FIG. 2, it may be provided in place of the charge collection unit 30 of the mobile terminal 1 in FIG. This security code charge totaling unit can be provided separately from the security code verification unit in the mobile exchange or the mobile terminal.

Further, the mobile terminal stores a charging index for the dialed number and outputs the corresponding charging index when dialing a call, and a charging index storage unit for generating a charging pulse at predetermined time intervals based on the output charging index. It may have a pulse generation unit and a charge collection unit for subtracting a charge from the prepaid card attached by the generated charging pulse.

In this way, after the mobile terminal completes the output of the billing index, collects or collects the charges, and forms a communication path from the calling terminal to the called mobile terminal based on the subscriber number, the terminals directly communicate with each other. By performing the password request and the password reception, all the equipment other than the mobile terminal can be the same as the conventional one.

Conversely, all the additional functions can be provided in the mobile switch, and the mobile terminal can be used for general purposes.

Next, an example of the mobile terminal will be described with reference to FIG. 5 to FIG.

FIG. 5 is a functional block diagram showing an embodiment of the mobile terminal of the present invention, FIG. 6 shows an example of a call receiving procedure of the present invention, and FIG. 7 shows an example of a calling procedure of the present invention. It is a flowchart.

5, FIG. 1 to FIG. 4 and FIG.
The same components as those shown and described in the drawings are denoted by the same reference numerals, and description thereof will be omitted.

In FIG. 5, the mobile terminal 1 is portable by an antenna 10, a radio transmission / reception unit 11, a radio conversion unit 12, a transmission path 13, a receiver 14, a control unit 15, a dial transmission unit 16, and a disconnection signal transmission unit 17. Telephone part, PIN code collating section 20, PIN code storage section 21, incoming buzzer 22, match signal sending section 23, and mismatch signal sending section
The collation part of the security code by 24 and the collection part of the communication fee by the fee collection part 30, the billing index extraction part 31, the billing pulse generation part 32, the card insertion part 33, the balance reading part 34, and the balance display part 35, that is, billing Means.

When the prepaid card 3 is purchased in advance by paying the communication charge of the mobile terminal 1 and inserted into the card insertion unit 33 of the mobile terminal 1 to make a call, the communication charge is reduced during communication and the balance is zero. The communication path is disconnected and communication becomes impossible.

The radio wave transmitted and received by the antenna 10 is transmitted and received by the radio transmitting and receiving unit 11. The radio conversion unit 12 converts the audio frequency in the mobile terminal 1 into a predetermined radio wave frequency, converts various signals to be transmitted into a radio wave frequency, and converts the signal into a radio wave frequency.
And demodulates and converts the radio wave frequency received from the radio transmission / reception unit 11 into an audio frequency and a predetermined signal. The transmitter 13 and the receiver 14 are connected to the radio converter 12 and are transmitted and received by the antenna 10 by radio waves. Control unit 15
Drives the dial transmission unit 16 when the information with the balance is received from the balance reading unit 33, and drives the disconnection signal transmission unit 17 to disconnect the connected communication when the information with the balance is received. The dial transmission unit 16 transmits the operated dial number to the wireless conversion unit 12 at the time of calling. The telephone dial number is a combination signal of audible frequencies by a push button (PB) dial, and is transmitted via a communication path. The dial number may be transmitted to the mobile switching center via a signal path. The disconnection signal transmitting unit 17 converts the disconnection signal into a wireless
Mobile exchange (of FIG. 1) 5 by signal path via 12
Send to

The PIN code collating unit 20 collates the PIN code received by the wireless conversion unit 12 with the PIN code written in the PIN code storage unit 21 in advance, and outputs information of coincidence or non-coincidence. The coincidence information drives the incoming buzzer 22 to make it ring, and also drives the coincidence signal transmitting unit 23 to be transmitted to the mobile switching center 5 via the wireless conversion unit 12. The non-coincidence information drives the non-coincidence signal transmission unit 24 and is transmitted to the mobile switching center 5 in the same manner as the coincidence information.

The charge collecting unit 30 is formed and output by the charging pulse generating unit 32 that inputs the charging index output from the charging index extraction unit 31.
Upon receiving the billing pulse to the public telephone, the balance of the prepaid card 3 attached to the card insertion unit 33 is decremented by one. The balance reading unit when the prepaid card 3 is mounted on the card insertion unit 33
34 reads the balance recorded on the prepayment card 3, displays it on the balance display 35, and notifies the controller 15 of the presence or absence of the balance.

An operation procedure when a call is received to the mobile terminal shown in FIG. 5 will be described with reference to FIG. 6 and FIG. 1 and FIG. FIG. 6 is a time chart showing an example of the main operation procedure of the present invention.

First, the calling terminal makes a call to the public communication network 6 and dials the dial number "030-AB-DEFGH". The mobile communication switch 5 to which the dial number “030-AB” is assigned is connected to the public communication network 6, and the mobile communication switch 5 is connected to the mobile terminal 1.
Receives the dial number "DEFGH", which is the calling number for.
The mobile switching center 5 transmits a request signal requesting a password to the caller. When the calling terminal is a telephone, the request signal for the password is preferably a voice message. When this request signal is received by the calling terminal, the calling terminal transmits a code "JKL" of the audio frequency band by the push button of the push button dial.

The mobile switching center 5 transmits the received subscriber number and the password “DEFGH-JKL” to the mobile terminal 1 by radio waves. In the mobile terminal 1, the wireless conversion unit 12 uses the number code “DEFGH-J
Since the KL is restored, the personal identification code collating unit 20 outputs the personal identification code “JKL” added to the subscriber number “DEFGH” assigned to itself.
The password is fetched and collated with the password stored in the password storage unit 21 in advance. If the number matches do not match, the mobile terminal 1 sends the mismatch signal to the mobile switch 5 via the wireless conversion unit 12, the wireless transmission / reception unit 11, and the antenna 10 by driving the mismatch code sending unit 24 by the password code checking unit 20. Send out. The mobile switching center 5 issues a mismatch signal, for example, a voice message "This number is not used. Please check and call again."
Is transmitted to the calling terminal via the communication path. On the other hand, if there is a match in the number matching, the mobile terminal 1 causes the password code matching unit 20 to transmit a matching signal to the incoming buzzer 22 to sound a buzzer serving as a calling signal and to drive the matching signal sending unit 23, Like the mismatch signal, the signal is transmitted to the mobile switching center 5 via the antenna 10, and the calling signal is transmitted from the mobile switching center 5 to the calling terminal via a communication path by a ringback sound in the case of a telephone line, for example.

Thereafter, the transfer of the response signal in response to the response of the mobile terminal 1 of the called party forms a communication path, the on-hook state of the calling terminal sends a disconnection signal, and the on-hook state of the mobile terminal 1 sends the end signal. The state is restored by transmitting a signal, and the conventional operation procedure proceeds.

In this embodiment, the mobile terminal is provided with the number collating portion arranged and illustrated in the mobile terminal. However, it is also possible to use a method in which the mobile exchange performs the number collation and calls the mobile terminal only when there is a match. The subscriber number is assigned to the mobile terminal, but the password is assigned to the actual user of the mobile terminal and works effectively in the case of a rental terminal.

In this embodiment, the inconsistency signal from the mobile exchange has been described as a message. However, if the mobile exchange has a circuit configuration in which a voice-coupled speech path is closed, the inconsistency due to a voice message from the mobile terminal is not considered. A signal may be transmitted.

Next, referring to FIG. 7 and FIG. 1 and FIG.
A procedure for making a call from the mobile terminal shown in the figure will be described. FIG. 7 is a time chart showing an example of the main operation procedure of the present invention.

The mobile terminal 1 originates a call in the same manner as before, and transmits the destination dial number “OA-BCD-EFGH” from the dial transmission unit 16 to the mobile exchange 5 via the radio conversion unit 12, the radio transmission / reception unit 11, and the antenna 10. I do. The mobile switch 5 sets a communication path to the called terminal accommodating switch using the received dial number. The called terminal accommodating exchange is one of the public communication networks 6 in this example, and when receiving the subscriber number "BCD-EFGH", transmits a paging signal to the corresponding called terminal to ring the paging signal and Then, a calling signal (ringback sound in the case of telephone) is returned to the calling side to notify the calling party of the calling. A response signal resulting from the response of the called terminal is returned to the mobile terminal 1. In the case of a telephone, the transmitter 13 and the receiver 14 are sent to the communication path together with the radio conversion unit 12, the radio transmission / reception unit 11, and the communication path to the antenna 10 together with the communication path. A road is also formed.

The mobile switching center 5 serving as the originating station extracts the charging index based on the originating dial number (connection destination) from the calling mobile terminal 1 and transmits it when receiving a response signal from the called terminal. After receiving the response signal and entering the communication state, the mobile exchange 5 transmits a charging pulse to the mobile terminal 1 at predetermined time intervals according to the charging index until the end of the communication. When the communication is terminated, the on-hook state of the calling mobile terminal 1 transmits a disconnection signal and is transferred to the called terminal, and the end signal is transferred to the calling mobile terminal 1 by the on-hook state of the called terminal, The state is restored.

In the mobile terminal 1 according to the present embodiment, when making a call, the control unit 15 drives the dial transmission unit 16 only when the prepaid card 3 is attached to the card insertion unit 33 and a notice indicating that there is a balance is received from the balance reading unit 34. You can make a call. The caller knows the balance of the prepayment card 3 from the balance display section 35. When the mobile terminal 1 receives and converts the charging pulse in the wireless conversion unit 12, the charging index extracting unit 31
Is extracted and notified to the fee collection unit 30, so that the card insertion unit
A few minutes are subtracted from the balance of the prepaid card 3 attached to 33 once, and the balance is displayed on the balance display section 35. When the balance becomes zero, the control unit 15 receives a notification from the balance reading unit 34 and drives the disconnection signal transmitting unit 17 to disconnect the communication path in order to terminate the communication.

In this embodiment, the means for collecting a charge at the terminal using the prepayment card has been described. However, the terminal may have a charge totalizing section and a charge display section, and may be a means for returning to zero from the exchange by collecting the charge. . Alternatively, the mobile switching center may have a password collection unit for a combination of the subscriber number and the password, and may collect the information from this information. As a rental terminal, a combination of a terminal and a prepayment card will increase the use value. The charge display and the balance may be a monetary amount or a frequency for a unit amount.

〔The invention's effect〕

As described above, according to the mobile communication system of the present invention, in addition to the subscriber number given to the mobile terminal,
By connecting the mobile terminal only when the dialed number with the security code added is received and matches the security code registered in advance, the user's movement due to lending of the mobile terminal is also set before lending. By registering a password different from the above, it is possible to avoid an incorrect connection, and it is possible to clarify the settlement by totalizing or collecting communication charges for each password.

[Brief description of the drawings]

FIG. 1 is a block diagram showing an embodiment of the mobile communication system of the present invention, FIG. 2 is a block diagram showing another embodiment different from FIG. 1, and FIG. 3 is FIGS. 1 and 2. FIG. 4 is a block diagram showing an example of the partial details of FIG. 2, FIG. 5 is a functional block diagram showing an example of the partial details of FIG. 1, and FIG. 7 is a time chart showing an example of the main operation procedure of FIG. 1 according to FIG. 5, and FIG. 8 is a block diagram showing an example of the conventional art. 1,8 mobile terminal, 3 prepaid card, 4,5 mobile switch, 6 public communication network, 10,50 antenna, 20
... PIN code collating unit, 21 ... PIN code storage unit, 30 ... Charge collection unit (charging means), 70 ... PIN code charging unit (charging means), 71 ... Charging index storage unit, 72 ... Charge Arithmetic unit.

Claims (9)

(57) [Claims] In a mobile communication system having a mobile switch connected to a public communication network and serving as a radio base station and a mobile terminal connected to the switch via radio waves, a predetermined mobile terminal is provided for each mobile terminal. A security code is added in advance to a subscriber number given in a public communication network, and a security code to be received next when the mobile terminal receives a subscriber number at the time of an incoming call is added to a received subscriber number. The mobile exchange, which calls the mobile terminal assigned this subscriber number and waits for a response only when the mobile terminal matches,
A mobile communication system comprising: charging means for charging a communication fee for each personal identification code added to a subscriber number. 2. The mobile terminal, when the personal identification code received at the time of calling is coincident with a personal identification number registered in advance, sounds a calling signal to prepare a reply of a response signal, while the mobile terminal does not match. 2. The mobile communication system according to claim 1, further comprising a password collating unit that returns a mismatch signal. 3. The mobile terminal according to billing information to be received, for example, a billing pulse received by a public telephone, when the inserted prepaid card has a balance and a communication charge is imposed by dialing. 2. The mobile communication system according to claim 1, further comprising a charge collection unit for reducing a balance of the prepaid card. 4. When the mobile exchange receives a subscriber number and a personal identification code of a mobile terminal, if the received personal identification code matches a personal identification code registered in advance with respect to the subscriber number, the mobile subscriber exchange receives the personal identification number. 3. The mobile communication system according to claim 1, further comprising a password collating unit for calling the mobile terminal to which the caller number is assigned and returning a mismatch message to the caller when the mobile terminal does not match. 5. A charging index storage unit for translating a dialed subscriber number received from the mobile terminal to output a charging index, and terminating a call from a response based on a clock pulse and the received charging index. 2. The mobile communication system according to claim 1, further comprising: a charge calculation unit that calculates a communication charge for the communication time up to and a PIN code tally unit that totals the communication fee for each PIN code. 6. When the mobile exchange receives a code mismatch signal from a mobile terminal via a radio wave signal path, it converts the code into a predetermined mismatch message and transmits it to a caller via a communication path. The mobile communication system according to claim 1 or 2, wherein: 7. The mobile terminal according to claim 1, wherein the mobile terminal converts the received code mismatch signal into a mismatch message and transmits the message to a caller via a communication path. 2) The mobile communication system according to the above. 8. The mobile terminal, wherein a charging index storage unit for storing a charging index for each dialed number, and charging for generating charging information determined by the charging index (for example, a charging pulse received by a public telephone). The mobile communication system according to claim 1, further comprising a pulse generation unit and a charge collection unit for reducing a remaining amount of the inserted prepaid card. 9. A mobile communication system having a mobile exchange connected to a public communication network and serving as a radio base station and a mobile terminal connected to the exchange via radio waves, wherein the mobile exchange is a mobile terminal. In response to the call from, the billing index translated from the outgoing dial number is returned to the calling mobile terminal via radio waves, and the mobile terminal inserts a prepaid card to make a call and from the mobile exchange. A charging pulse generating unit that generates a charging pulse by itself based on a charging index to be received, a charge collecting unit that receives the charging pulse, reduces the balance of the prepaid card, and collects a communication charge, and is predetermined when an incoming call is received. When a PIN code is added to the received subscriber number in advance and a predetermined subscriber number is received, when the next received PIN code matches the PIN code added to the received subscriber number Mobile communication system characterized by having a personal identification code verification unit for driving the ringing of the calling signal and waits for a response.