JP2000236581A - Communication system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enhance the economical efficiency for a caller in a communication system where a plurality of communication networks with different communication systems are intermingled. SOLUTION: An integral communication network 22 is built up with a personal digital cellular PDC communication network 18, a personal handy phone system PHS public communication network 19, and a PHS private communication network 20 in mixture. When a portable telephone set 1 registers its position to the PHS private communication network 20 (position registration), an incoming call switching signal is transmitted to an integral communication network 22 (incoming call changeover). On the occurrence of an incoming call request from the PDC communication network 18 to the portable telephone set 1, the integral communication network 22 receives an incoming call switching signal to transfer the incoming telephone number from the PDC telephone number to a PHS private telephone number. Thus, the portable telephone set 1 receives the PHS private communication network 20 (call reception). Since the communication charge using the PHS private communication network 20 is not accounted on a caller, the communication charge is reduced.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an integrated communication network in which a plurality of communication networks having different communication systems are mixed, and a simplified portable telephone system (PHS) private communication network is provided in the integrated communication network. And a communication device comprising a communication device configured to be communicable through the integrated communication network.

[0002]

At present, as a communication system applied to mobile communication, for example, a personal digital cellular (PDC) communication system represented by a portable telephone system and a car telephone system, , A simplified mobile phone system developed as a second generation cordless phone system (PHS: Pe
rsonal Handyphone System).

[0003] The communication system of the PDC system has a wide service area since the base station (BS: Base Station) has an area radius of 1.5 km to several km (macro cell), and can communicate even during high-speed movement. On the other hand, there is an advantage that the power consumption is large in the mobile phone device and the car phone device. On the other hand, in the PHS communication system, the area radius of a radio base station (CS: Cell Station) is 100 m to several hundred m (microcell), which is smaller than the area radius in the PDC communication system. Therefore, the simple portable telephone device has an advantage of low power consumption, but has a disadvantage that a service area is narrow and communication cannot be performed during high-speed movement.

[0004] Under such circumstances, in recent years, in order to take advantage of each communication system depending on the usage form, the communication system is used in both the PDC communication system and the PHS communication system. Possible mobile telephone devices are being considered.

Now, consider a case where such a portable telephone device receives a call. The mobile phone device is a PHS
It supports a public communication system and a privately-owned communication system as a communication system of the PDS system. Corresponding telephone number (PHS public telephone number) and PH
S The telephone number (PHS) corresponding to the self-employed communication system
In the case where the mobile phone has three telephone numbers (self-owned telephone number), when the caller who calls the mobile phone enters a PDC phone number as the calling phone number, the mobile phone performs PDC communication. When an incoming call is received from the network and the caller inputs the PHS public telephone number as the calling telephone number, the portable telephone device receives the call from the PHS public communication network, and the caller receives the PHS private telephone number as the calling telephone number. When the number is input, the portable telephone device receives a call from the PHS private communication network.

[0006] In this case, when the portable telephone device receives a call from the PDC communication network, the subsequent communication is executed through the PDC communication network. Therefore, a communication fee for using the PDC communication network is charged. On the other hand, when the portable telephone device receives a call from the PHS private communication network, the subsequent communication is executed through the PHS private communication network.
No communication fee is charged for using the S private communication network.

[0007] That is, for the caller, a comparison between a case where the call arrives at the portable telephone device from the PDC communication network and a case where the call arrives at the portable telephone device from the PHS private communication network shows that the portable telephone device arrives at the PHS private communication network. There is an advantage that the communication charge is lower when the call arrives at the mobile phone than when the call arrives at the portable telephone device from the PDC communication network.

[0008] However, since the caller cannot recognize the standby state of the portable telephone device, which is the call destination, the portable telephone device is temporarily executing standby on the PHS private communication system. , The mobile phone device is P
Even in a situation where it is possible to receive a call from the HS private communication network, a PDC phone number may be input as a calling phone number. When this happens, the mobile phone device becomes a PHS
Since the call is not received from the private communication network but from the PDC communication network, the cost of the caller is poor.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and an object of the present invention is to construct an integrated communication network in which a plurality of communication networks having different communication systems are mixed, and to construct the integrated communication network. Mobile phone system (PH
S) An object of the present invention is to provide a communication system that includes a private communication network and can improve the economical efficiency for a caller.

[0010]

According to the communication system of the present invention, the control means in the communication device transmits an incoming call switching signal to the integrated communication network on condition that the location is registered in the PHS private communication network. Send. The incoming call request switching means in the integrated communication network transmits the call from the communication device when an incoming call request from another communication network other than the PHS private communication network to the communication device occurs in response to the transmission from another communication device. On the condition that the received incoming call switching signal is received, the incoming call request is switched so as to receive an incoming call from the PHS private communication network to the communication device.

That is, the communication device transmits an incoming call switching signal on condition that the location is registered in the PHS private communication network, and the integrated communication network transmits the communication device from another communication network other than the PHS private communication network to the communication device. Is received from the PHS private communication network instead of receiving from another communication network other than the PHS private communication network on condition that the incoming call switching signal transmitted from the communication device is received. The incoming call request is switched so that the incoming call arrives at the device.

Thus, the communication device will thereafter
Since communication is performed through the PHS private communication network rather than through other communication networks other than the S private communication network, the caller who has transmitted to the communication device is provided with the PHS private communication network. No communication fee is charged for using. Therefore, compared to the case where communication is performed through a communication network other than the PHS private communication network, the communication fee is lower for the caller, and the economic efficiency can be improved accordingly.

According to the communication system of the second aspect, the control means in the communication device is configured to be able to set whether or not to transmit the incoming call switching signal. That is, the user using the communication device sets the control means, so that, for example, only during the daytime, an incoming call request from another communication network other than the PHS private communication network to the communication device occurs. In such a case, the incoming call request is switched to receive an incoming call from the PHS private communication network, that is, the economical efficiency can be improved for the caller only during a specific time zone. It is possible to respond flexibly according to the usage form.

[0014] According to the communication system of the third aspect, the control means in the communication device, when receiving from another communication network other than the PHS private communication network, in response to the transmission by the other communication device, operates the PHS private communication system. On the condition that the location is registered in the communication network, the integrated communication network is caused to transmit the incoming call switching signal. When the incoming call switching means in the integrated communication network receives the incoming call switching signal transmitted from the communication device, the incoming call switching device disconnects the incoming call from the communication device other than the PHS private communication network to the communication device and performs the other communication. The incoming call is switched so that the incoming call from the device is received from the PHS private communication network to the communication device.

[0015] That is, the communication device is registered in the PHS private communication network and receives a call from another communication network other than the PHS private communication network in response to a call from another communication device. In addition to disconnecting an incoming call from another communication network other than the network,
The incoming call is switched so that the incoming call comes from the HS private communication network. As a result, the communication device does not execute communication through a communication network other than the PHS private communication network,
Since the communication is performed through the HS private communication network, the communication fee is reduced for the caller in the same manner as in the above-described claim 1, and the economic efficiency can be improved accordingly. it can.

According to the communication system of the fourth aspect, when the incoming call is switched, the incoming call switching means in the integrated communication network causes another communication device to transmit a notification signal. That is, by receiving the broadcast signal transmitted from the integrated communication network, the caller disconnects the incoming call from the communication network other than the PHS private communication network to the communication device, and transmits the communication device from the PHS private communication network to the communication device. It can recognize that the incoming call has been switched so that it can be received, and when executing communication,
It is possible to recognize that the communication fee has become low.

According to the communication system of the fifth aspect, the incoming call disconnecting means in the communication device transmits the PHS private communication network and the P-related communication in response to the transmission by another communication device.
When an incoming call is simultaneously received from a communication network other than the HS private communication network, the incoming call from another communication network other than the PHS private communication network is disconnected.

That is, when a communication device receives a call from another PHS private communication network and another communication network other than the PHS private communication network at the same time in response to a call from another communication device, the communication device other than the PHS private communication network. Disconnect incoming calls from other communication networks. As a result, the communication device will thereafter
Since the communication is performed only through the PHS private communication network rather than through another communication network other than the private communication network, similar to the above-described claim 1, the communication is performed by the caller. In addition, the communication fee is reduced, and the economic efficiency can be improved accordingly.

[0019]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS (First Embodiment) The present invention will be described below with reference to a PDC (Personal Digital Cellular) communication system, a PHS (Personal Handyphone System) public communication system and a PHS self-owned communication system. A first embodiment (corresponding to claims 1 and 2) applied to a portable telephone device configured to be usable will be described with reference to FIGS.

FIG. 2 is a functional block diagram showing the electrical configuration of the portable telephone device. Mobile phone device 1
Is a control unit 2 mainly composed of a microcomputer.
(Control means in the present invention). The control unit 2 includes a PDC radio unit 4 and a PDC
DC baseband processing unit 5, PHS wireless unit 7 and PHS baseband processing unit 8, which constitute PHS communication unit 6, P
The DC / PHS common voice processing unit 9, the key operation detection unit 10, and the display control unit 11 are connected to each other.
Are configured to control the respective units 3 to 11 by transferring control signals between the respective units 3 to 11.

The PDC radio unit 4 of the PDC communication unit 3 includes a receiving circuit and a demodulation circuit as a receiving system. For example, a 1.5 GHz band radio wave is captured by the PDC antenna 12, and a received signal is accordingly received. Is given, reception processing, demodulation processing, and the like are performed on the received signal, and the received signal is output to the PDC baseband processing unit 5.

The PDC radio section 4 includes a modulation circuit, a quadrature modulation circuit, a power amplifier circuit, and the like as a transmission system. When a transmission signal is supplied from the PDC baseband processing section 5, the supplied transmission signal is transmitted. Modulation processing for
It performs quadrature modulation processing and power amplification processing and outputs a transmission signal to the PDC antenna 12. The PDC antenna 12 receives the transmission signal from the PDC radio unit 4 when the transmission signal is supplied. The transmission signal is radiated as radio waves.

The PDC baseband processing unit 5 has a TDMA
The PDC radio unit 4 is mainly composed of a control circuit.
, A TDMA process is performed on the received signal, and the received signal is converted to a PDC / P
The data is output to the HS common audio processing unit 9. Further, when a transmission signal is provided from PDC / PHS common voice processing section 9, PDC baseband processing section 5 executes TDMA processing on the provided transmission signal and outputs the transmission signal to PDC radio section 4. It is supposed to.

The PHS radio section 7 of the PHS communication section 6 has basically the same function as the PDC radio section 4 described above. In this case, the PDC radio unit 4
Processing a transmission signal and a reception signal in a 1.5 GHz band conforming to the communication standard of the PHS radio system,
Is configured to process 1.9 GHz band transmission signals and reception signals conforming to the PHS communication standard.

That is, the PHS radio section 7 includes a receiving circuit and a demodulating circuit as a receiving system. For example, a radio wave in a 1.9 GHz band is captured by the PHS antenna 13 and a received signal is provided accordingly. And performs a receiving process and a demodulating process on the given received signal, and converts the received signal into a PHS baseband processing unit 8.
Output.

The PHS radio section 7 includes a modulation circuit, a quadrature modulation circuit, a power amplifier circuit, and the like as a transmission system. When a transmission signal is supplied from the PHS baseband processing section 8, the supplied transmission signal is provided. Modulation processing for
The PHS antenna 13 performs a quadrature modulation process, a power amplification process, and outputs a transmission signal to the PHS antenna 13. When the PHS radio unit 7 receives the transmission signal, the PHS antenna 13 receives the transmission signal. The transmission signal is radiated as radio waves.

The PHS baseband processing section 8 basically has a function substantially the same as that of the PDC baseband processing section 5 described above. In this case, the PDC baseband processing unit 5 is adapted to the PDC communication standard 1.5.
The PHS baseband processing unit 8 is configured to process a 1.9 GHz band transmission signal and a reception signal compliant with the PHS communication standard, while processing a transmission signal and a reception signal in the GHz band. I have.

That is, the PHS baseband processing unit 8
Is mainly composed of a TDMA control circuit.
When a received signal is supplied from the HS radio unit 7, the received signal is subjected to TDMA processing, and the received signal is output to the PDC / PHS common voice processing unit 9. Also, the PHS baseband processing unit 8
When a transmission signal is provided from the C / PHS common voice processing unit 9, TDMA processing is performed on the provided transmission signal, and the transmission signal is output to the PHS radio unit 7.

The PDC / PHS common voice processing unit 9 is provided with a DS
P, an audio interface circuit, and the like. When a reception signal is provided from the PDC baseband processing unit 5 or the PHS baseband processing unit 8, the received reception signal is subjected to audio decoding processing and A reception signal is generated by executing a D / A conversion process or the like, and the reception signal is output to the receiver 14.

The PDC / PHS common audio processing unit 9
Receives a transmission signal from the microphone 15, performs A / D conversion processing, voice encoding processing, and the like on the supplied transmission signal, generates a transmission signal, and converts the transmission signal to P
The data is output to the DC baseband processing unit 5 or the PHS baseband processing unit 8.

With such a configuration, the mobile phone 1
Is controlled by the control unit 2 controlling the PDC communication unit 3 (the PDC wireless unit 4 and the PDC baseband processing unit 5).
When a 1.5 GHz band radio wave is captured by the PDC antenna 12, a reception signal corresponding to the radio wave is received by the receiver 1.
4, when a transmission signal is given to the microphone 15, a 1.5 GHz band radio wave corresponding to the transmission signal is radiated from the PDC antenna 12. In the mobile phone device 1, the control unit 2 controls the PHS communication unit 6 (the PHS wireless unit 7 and the PHS baseband processing unit 8), so that a 1.9 GHz band radio wave is captured by the PHS antenna 13. The receiver 14 outputs a reception signal corresponding to the radio wave from the receiver 14, and when a transmission signal is given to the microphone 15, the PHS antenna 13 emits a 1.9 GHz band radio wave corresponding to the transmission signal. It has become.

The key operation detecting section 10 includes a power key, a call start key, a call end key, numeric keys “0” to “9”,
It is connected to a keypad 16 on which various keys such as (function) keys are arranged, and when a key operation signal corresponding to the key operation is given from the keypad 16, the key operation signal according to the given key operation signal is given. The control signal is output to the control unit 2. Then, when a control signal is given from the key operation detecting unit 10, the control unit 2 executes a process according to the given control signal.

The display control unit 11 is connected to a display 17 having a liquid crystal display unit. When a control signal is supplied from the control unit 2, the display control unit 11 outputs a display command signal corresponding to the supplied control signal. Output. The display 17 is connected to the display control unit 1.
When a display command signal is given from 1, the display information corresponding to the given display command signal is displayed.

The control unit 2 stores an execution program in a predetermined storage area, and executes processing described later in detail according to an algorithm described in the execution program.

Next, FIG. 3 schematically shows a configuration of a communication system in which the portable telephone device 1 is used. The mobile phone device 1 has a PDC for an outside line as shown below.
Number (PDC telephone number) corresponding to the PHS public communication system, telephone number (PHS public telephone number) corresponding to the PHS public communication system, and telephone number (PHS private telephone number) corresponding to the PHS private communication system Has three telephone numbers.

PDC telephone number ... "0903AB Ai-Weo" PHS public telephone number ... "0705CD Kakikukeko" PHS private telephone number ... Yes, “0705” means PHS
This is a predetermined code corresponding to a public communication system. Actually, as a code corresponding to the PDC communication system, for example, "093"
01, 0902 and 0904, etc., but here, it is assumed that it is "0903", and the code corresponding to the PHS public communication system is "0705". Alternatively, for example, "070
6 ", but here, it is assumed that it is" 0705 ".

"AB" is a person identification code consisting of two digits assigned to a communication carrier providing the PDC communication system, and "CD" is a PHS public communication system. This is a person identification code consisting of a two-digit number assigned to a communication carrier that provides the system. In addition, “Aiueo” and “Kakikukeko” are subscriber numbers composed of five-digit numbers individually assigned to the mobile phone device 1. Further, the “Scissors” is a nine-digit number corresponding to a fixed telephone number (including an area code and a local code).

With such a configuration, the mobile phone 1
Is P if the incoming phone number is a PDC phone number
When an incoming call is received from the DC communication network 18 and the incoming telephone number is a PHS public telephone number, the incoming call comes from the PHS public communication network 19 and the incoming telephone number is
When the telephone number is a private telephone number, a call is received from the PHS private communication network 20. The PDC communication network 18, the PHS public communication network 19, and the PHS private communication network 20 are connected to a PSTN (Public Switched Telephone Network).
ork) and ISDN (Integrated Services Digital)
Network), which are interconnected with each other, and the integrated communication network 22 according to the present invention is connected to each of these communication networks 1.
8-21.

The integrated communication network 22 constructed as described above is provided with a service control station (call request switching means according to the present invention). Hereinafter, this service control station will be described with reference to FIG. I will explain.

The service control station 23 transfers the subscriber information to and from the subscriber database 24, and
5 is transferred.
In this case, when performing the connection process, the service control station 23 reads necessary subscriber information from the subscriber database 24 and causes the exchange 25 to execute the switching process based on the read subscriber information. The connection control in the integrated communication network 22 is executed and managed.

The subscriber information managed by the subscriber database 24 includes, in addition to the subscriber's telephone number, location information, billing information, transmission history information and reception history information, etc. It is configured to include information.
Here, the incoming call restriction information will be described by taking as an example the case where the subscriber is the mobile phone device 1.

When the subscriber is the portable telephone 1, the subscriber database 24 stores the PDC telephone number, the PHS public telephone number and the PH as the telephone number of the subscriber.
In addition to managing three telephone numbers of the S-owned telephone numbers, it manages a call restriction flag corresponding to each telephone number as call restriction information. Here, the incoming call restriction flag is set by “0” and “1”, and the PDC communication network 18, the PHS public communication network 19 and the PHS
When an incoming request to the mobile phone device 1 occurs from any of the private communication networks 20, whether to allow or prohibit the incoming from the communication network to the mobile phone device 1 in response to the incoming request Is information indicating

That is, when an incoming call request from any of the communication networks to the portable telephone device 1 occurs, the service control station 23 responds to the incoming call request from the subscriber database 24 in a situation where predetermined conditions are satisfied. The incoming call restriction flag is read together with the telephone number corresponding to the communication network, and if the read out call restriction flag is set to “0”, the exchange 2 is configured to permit the incoming call from the communication network to the portable telephone device 1.
5 on the other hand, if the incoming call restriction flag is set to "1", incoming calls from the communication network to the mobile phone 1 are prohibited, and at this time, the incoming call restriction flag is set to "0". If there is another telephone number set in, the incoming telephone number is transferred, so that the exchange 25 executes the exchange processing so that the mobile telephone device 1 receives the call from the other communication network. I have.

More specifically, the service control station 23 sets, for example, the incoming call restriction flag of the PDC telephone number of the portable telephone device 1 to “1” and sets the incoming call restriction flag of the PHS private telephone number to “0”. In the set state, when an incoming call request from the PHS private communication network 20 to the mobile phone device 1 occurs, the incoming call restriction flag of the PHS private telephone number is set to “0”. From the PHS private communication network 20 to allow the mobile phone 1 to transmit an incoming signal to the mobile phone 1, so that the exchange 25 executes an exchange process.

On the other hand, when an incoming call request from the PDC communication network 18 to the portable telephone device 1 occurs, the service control station 23
Since the incoming call restriction flag of the PDC telephone number is set to “1”, incoming calls from the PDC communication network 18 to the mobile phone device 1 are prohibited, and at this time, the incoming call restriction flag of the PHS private telephone number is set to “1”. Since the telephone number is set to "0", the incoming telephone number is transferred from the PDC telephone number to the PHS private telephone number.
The exchange 25 executes the exchange processing so that the call is received from 0 to the mobile telephone device 1.

Next, the operation of the above configuration will be described with reference to FIGS. 1, 5 and 6. FIG. 1 schematically shows a signal flow between the mobile phone device 1 and the integrated communication network 22, and FIG. 5 shows, as a flowchart, control contents executed by the control unit 2 in the mobile phone device 1. FIG. 6 is a flowchart showing the control contents executed by the service control station 23.

The control unit 2 of the portable telephone device 1 firstly
It is determined whether the "PHS private communication priority mode" is set (step S1). Here, the user using the mobile phone 1 is referred to as “PHS private communication priority mode”.
Perform key operations to set the
When the “PHS private communication priority mode” is set, the control unit 2 determines “YES” in step S1.

Next, the control unit 2 controls the PHS private communication network 2
0 is determined (step S
2). Here, the mobile phone device 1 is connected to the PHS private communication network 20.
Of the PHS private communication network 20
When the position is registered at the step S, the control unit 2 proceeds to step S
It is determined “YES” in 2.

Next, the control unit 2 sets the PDC function stop flag to "1" (step S3), sets the PHS public function stop flag to "1" (step S4), and sets the PHS
Set the self-employed function stop flag to “0” (step S
5). Then, the control unit 2 causes the service control station 23 to transmit the incoming call switching signal through the PHS private communication network 20 (step S6).

When the service control station 23 receives the incoming call switching signal transmitted from the portable telephone device 1 in this way, the service control station 23 stops the PDC function in the portable telephone device 1 by identifying the received incoming call switching signal. The flag is set to "1" and the PHS public function stop flag is set to "1".
And the PHS self-employed function stop flag is set to “0”.

The service control station 23 responds to the fact that the PDC function stop flag is set to “1”.
In response to the fact that the incoming call restriction flag of the PDC telephone number of the mobile phone device 1 is set to “1” in the subscriber information of the subscriber database 24 and the PHS public function stop flag is set to “1”, The incoming call restriction flag of the PHS public telephone number is set to “1”, and the incoming call restriction flag of the PHS private telephone number is set to “0” in response to the PHS private function stop flag being set to “0”. .

As described above, when the service control station 23 receives the incoming call switching signal transmitted from the portable telephone device 1, the service control station 23 stores the telephone number of each telephone number in the subscriber information of the subscriber database 24 based on the incoming call switching signal. Set the incoming call restriction flag.

Now, let us consider a case where, for example, a user using another portable telephone device inputs any one of the PDC telephone number, the PHS public telephone number and the PHS private telephone number of the portable telephone device 1. A user who uses another mobile telephone device inputs one of the telephone numbers of the mobile telephone device 1 and accordingly, any one of the PDC communication network 18, the PHS public communication network 19 and the PHS private communication network 20 When an incoming call request from the communication network to the mobile phone device 1 is generated, the service control station 23 first determines the value of the incoming call restriction flag of the incoming telephone number in response to the incoming call request (step S11).

Here, the sender is the PDC of the portable telephone device 1.
Assuming you have entered a phone number, the incoming phone number is PD
The service control station 23 determines “YES” in step S11 because the CDC phone number is set and the incoming call restriction flag of the PDC phone number is set to “1” as described above.
Is determined.

Next, the service control station 23 determines whether or not the "telephone announcement mode" is set (step S12). Here, assuming that the "telephone announcement mode" is not set, the service control station 23 determines "NO" in step S12, and the call restriction flag is set to "0" in the subscriber information of the subscriber database 24. Is read out (step S13). In this case, since the incoming call restriction flag of the PHS private telephone number is set to “0”, the service control station 23 reads the PHS private telephone number.

Then, the service control station 23 transfers the called telephone number from the PDC telephone number to the read telephone number, that is, the PHS private telephone number (step S14),
The communication network corresponding to the incoming telephone number of the transfer destination, that is,
A call is received from the PHS private communication network 20 to the mobile phone device 1 (step S15). Thereby, the mobile phone device 1
Instead of receiving the call from the PDC communication network 18, the call comes from the PHS private communication network 20.

That is, when the mobile phone device 1 is registered in the PHS private communication network 20 (in FIG. 1, “
Location registration "), the service control station 2 of the integrated communication network 22.
When the service control station 23 receives the incoming call switching signal, the incoming call request from the PDC communication network 18 to the portable telephone device 1 is generated, for example. Occasionally, by transferring the incoming telephone number from the PDC telephone number to the PHS private telephone number,
The incoming call request is switched so as to receive an incoming call from the HS private communication network 20 to the mobile phone device 1 (see “incoming call” in FIG. 1).

By the way, assuming that the "telephone announcement mode" has been set, the service control station 23 determines "YES" in step S12, and transmits the telephone number of the transfer destination to another portable telephone device as the call destination. That is, PH
The S-owned telephone number is transmitted by voice guidance (step S16). As a result, the caller can call the destination PH
The S-owned telephone number can be recognized, and the PHS-owned telephone number can be input.

If the incoming call restriction flag of the incoming telephone number is set to "0", the service control station 23 determines "YES" in step S11 and transfers the incoming telephone number as described above. Instead, a call is received from the communication network corresponding to the called telephone number to the mobile phone device 1 (step S17).

Further, the control unit 2 of the mobile phone 1
If the location has not been registered in the S private communication network 20, "NO" is determined in step S2, all the function stop flags are set to "1" (step S7), and the incoming call switching signal is transmitted through the PHS private communication network 20. It is transmitted to the service control station 23 (step S6).

When the “PHS private communication priority mode” is not set, the control unit 2 determines “NO” in step S1. In this case, each control is performed by a mechanical operation different from the key operation. Since the function stop flag may be set, the setting by the hardware is read (step S8), and the function stop flag may be set by the processing of the execution program. Read the settings (Step S
9) Send the incoming call switching signal to the service control station 23 through the PHS private communication network 20 (step S6).

As described above, according to the first embodiment, the location of the portable telephone device 1 is registered in the PHS private communication network 20.
When the “PHS private communication priority mode” is set, a configuration is made such that an incoming call switching signal is transmitted to the service control station 23, and the service control station 23 receives the incoming call switching signal transmitted from the mobile phone 1. For example, when an incoming call request from the PDC communication network 18 to the mobile telephone device 1 is generated, the incoming telephone number is transferred from the PDC telephone number to the PHS private telephone number, thereby making the PHS private communication network 20 available.
The mobile phone device 1 is configured to switch the incoming call request so as to receive the incoming call.

As a result, the portable telephone device 1 does not communicate thereafter through the PDC communication network 18 but communicates through the PHS private communication network 20. The caller who has made the call will not be charged a communication fee for using the PHS private communication network 20. Therefore, compared to the case where communication is performed through the PDC communication network 18, the communication fee is lower for the caller, and the economic efficiency can be improved accordingly.

Further, the user using the portable telephone device 1 can set the “PHS private communication priority mode” only during the daytime, for example, so that the PDC communication network 1 can be used.
8 can be switched so that the incoming request from the PHS private communication network 18 is received in response to the incoming request from the PHS 8 to the mobile phone device 1, that is, the economical efficiency is improved for the caller only in a specific time zone. For example, it is possible to flexibly cope with the usage mode, for example, by making it possible.

In addition, when the PDC communication network 18 is switched to the PHS private communication network 20, the voice coding system is also switched. In this case, the voice coding system used in the PDC system and the PHS Comparing with the audio coding method adopted in the PHS method, in general, the sound quality of the audio coding method adopted in the PHS method is lower than the sound encoding method adopted in the PDC method. Since it is good, there is also an advantage that the voice quality is improved. further,
Since the radio base station of the PHS private communication network 20 is generally installed indoors, in a PDC communication system, radio waves may be shielded by buildings and the environment for supplementing radio waves indoors may deteriorate. However, in this case, there is an advantage that the environment for capturing radio waves does not deteriorate.

In the above embodiment, the PDC communication network 1
8 describes a case where the incoming call request from the PHS 8 to the mobile phone device 1 is switched from the PHS private communication network 20 to the mobile phone device 1, but the same applies when the caller inputs a PHS public telephone number. That is, it is also possible to switch the incoming call request from the PHS public communication network 19 to the mobile phone device 1 so that the incoming request is received from the PHS private communication network 20 to the mobile phone device 1. It is also possible to transmit an incoming call switching signal at the time of location registration.

(Second Embodiment) Next, a second embodiment of the present invention will be described.
An embodiment (corresponding to claims 3 and 4) will be described with reference to FIG. The same parts as those in the first embodiment are denoted by the same reference numerals, and the description thereof will be omitted. Hereinafter, different parts will be described. In the first embodiment described above, the service control station 23 manages the incoming call restriction flag, and the service control station 23
Sets an incoming call control flag based on the incoming call switching signal, and when an incoming call request from another communication network other than the PHS private communication network 20 to the portable telephone device 1 is generated, the PHS private communication network 20 sends the portable telephone device 1 The second embodiment is configured so that the incoming call request is switched so that the incoming call arrives at the portable telephone device 1 from another communication network other than the PHS private communication network 20. By transmitting an incoming call switching signal from the PHS to the service control station 23, the service control station 23 switches the incoming call from the PHS private communication network 20 to the mobile phone device 1.

That is, in the second embodiment, when the mobile phone device 1 is registered in the PHS private communication network 20 (see “location registration” in FIG. 7), it receives an incoming call from the PDC communication network 18 ( 7, see "Incoming"), PD
An incoming call switching signal is transmitted to the service control station 23 (corresponding to incoming call switching means in the present invention) via the C communication network 18 (FIG. 7).
When the service control station 23 receives the incoming call switching signal transmitted from the mobile phone device 1, the service control station 23 transfers the incoming telephone number from the PDC telephone number to the PHS private telephone number, thereby making the PHS privately operated. The incoming call is switched so that an incoming call is received from the communication network 20 to the mobile phone device 1 (FIG. 7).
Medium, see Incoming Calls). And the service control station 23
Transmits the notification signal to the destination when the incoming call is switched in this way.

As described above, according to the second embodiment, the location of the portable telephone device 1 is registered in the PHS private communication network 20.
When an incoming call is received from the PDC communication network 18, an incoming call switching signal is transmitted to the service control station 23 through the PDC communication network 18, and the service control station 23 receives the incoming call switching signal transmitted from the mobile phone 1. , PHS
The incoming call is switched so that the mobile phone device 1 receives an incoming call from the private communication network 20.

As a result, the portable telephone device 1 thereafter executes the communication via the PHS private communication network 20 instead of executing the communication via the PDC communication network 18. Similarly, for the caller, the communication fee is reduced, and the economy can be improved accordingly.

Further, since the service control station 23 is configured to transmit a notification signal to the destination when the incoming call is switched, the caller can receive the notification signal by receiving the notification signal.
It is possible to recognize that the incoming call has been switched from the PHS private communication network 20 to the mobile phone device 1, and to recognize that the communication fee has become low when executing communication.

(Third Embodiment) Next, a third embodiment of the present invention will be described.
An embodiment (corresponding to claim 5) will be described with reference to FIG. The same parts as those in the above-described second embodiment are denoted by the same reference numerals, and description thereof will be omitted. Hereinafter, different parts will be described. In the second embodiment, the PHS private communication network 20 is used.
When the mobile phone device 1 receives a call from another communication network, the mobile phone device 1 transmits an incoming call switching signal to the service control station 23. In the third embodiment, the incoming call is switched so that the incoming call is received. In this third embodiment, the PHS private communication network 20 and the PH
S from the other communication network than the private communication network 20
Simultaneously, the mobile phone device 1 transmits a termination disconnection signal to the service control station 23, thereby disconnecting a call from another communication network other than the PHS private communication network 20, and
The communication is executed only through the S private communication network 20.

That is, in the third embodiment, when the mobile phone device 1 is registered in the PHS private communication network 20 (see “location registration” in FIG. 8), the PHS private communication is performed from the same destination. When a call arrives from the network 20 and the PDC communication network 18 at the same time (refer to “Termination” in FIG. 8), the PDC
By transmitting an incoming call disconnection signal to the service control station 23 through the communication network 18, the incoming call from the PDC communication network 18 is cut off (refer to "call disconnection" in FIG. 8). That is, in this case, the incoming call disconnecting means according to the present invention is the mobile phone device 1.
Of the control unit 2.

As described above, according to the third embodiment, the location of the mobile phone device 1 is registered in the PHS private communication network 20.
When an incoming call is simultaneously received from the PHS private communication network 20 and the PDC communication network 18, an incoming disconnection signal is transmitted to the service control station 23 through the PDC communication network 18 and the PDC communication network 1
8 is configured to disconnect the incoming call.

As a result, the portable telephone device 1 thereafter executes communication only through the PHS private communication network 20 instead of executing communication through the PDC communication network 18, and thus the first embodiment described above. In the same manner as described above, for the caller, the communication fee is reduced, and the economic efficiency can be improved accordingly.

In the above embodiment, the mobile phone 1
Describes the case where the incoming call from the PDC communication network 18 is disconnected.
It is also possible to cut off the incoming call from the mobile phone 8 to the mobile phone device 1.

(Other Embodiments) The present invention is not limited to the above embodiment, but can be modified or expanded as follows. The communication device is not limited to a mobile phone device, but may be a car phone device or the like. The integrated communication network may be any network including a PHS private communication network, and may be a CDMA communication network employing a code division multiple access (CDMA) communication system, a DECT (Digita).
l European Cordless Telephone) Network and GSM
(Grobal System for Mobile communications) It may be constructed including a communication network and the like.

The PDC communication section is not limited to the one corresponding to the 1.5 GHz band conforming to the PDC communication standard, but may be the one corresponding to the 800 MHz band conforming to the PDC communication standard. The configuration is not limited to the configuration in which the PDC antenna and the PHS antenna are separately provided, but may be a configuration in which the PDC antenna and the PHS antenna are shared by providing an antenna duplexer.

The PHS private telephone number is not limited to four digits but may be any number of digits conforming to the communication standard. In the integrated communication network, the configuration may be such that the functions of the service control stations are distributed, and accordingly, the subscriber database may be distributed and managed.

[Brief description of the drawings]

FIG. 1 is a view showing a first embodiment of the present invention and schematically showing a signal flow;

FIG. 2 is a functional block diagram showing an electrical configuration.

FIG. 3 is a diagram schematically showing a configuration of a communication system.

FIG. 4 is a diagram schematically showing a configuration around a service control station;

FIG. 5 is a flowchart showing control contents executed by a control unit of the mobile phone device.

FIG. 6 is a flowchart showing control contents executed by a service control station.

FIG. 7 is a view corresponding to FIG. 1, showing a second embodiment of the present invention;

FIG. 8 is a view corresponding to FIG. 1, showing a third embodiment of the present invention.

[Explanation of symbols]

In the drawing, 1 is a mobile phone device (communication device), 2 is a control unit (control means, incoming call disconnecting means), 18 is a PDC communication network (communication network), 19 is a PHS public communication network (communication network), and 20 is P
An HS private communication network (communication network), 21 is a public communication network (communication network), 22 is an integrated communication network, and 23 is a service control station (an incoming request switching means, an incoming switching means).

 ────────────────────────────────────────────────── ─── Continuing on the front page (72) Inventor Hiroshi Sakai 1-1-1, Showa-cho, Kariya-shi, Aichi Prefecture Inside Denso Corporation (72) Inventor Toru Yamazaki 1-1-1, Showa-cho, Kariya City, Aichi Prefecture (72) Inventor Akira Inoue 1-1-1 Showa-cho, Kariya-shi, Aichi F-term in Denso Corporation (reference) 5K024 AA61 CC11 GG03 5K067 AA41 BB04 BB08 EE04 EE16 GG11 HH11 JJ61 9A001 CC05 HH34 JJ12

Claims (5)

[Claims] An integrated communication network is constructed by mixing a plurality of communication networks having different communication systems from each other, and the integrated communication network includes a simple mobile telephone system (PHS) private communication network. In a communication system in which a communication device is configured to be communicable through the integrated communication network, the communication device causes the integrated communication network to transmit an incoming call switching signal on condition that the communication device is registered in the PHS private communication network. Control means, the integrated communication network, when an incoming call request from another communication network other than the PHS private communication network to the communication device occurs in response to transmission from another communication device, the communication An incoming call request switcher that switches the incoming call request from the PHS private communication network to the communication device on condition that the incoming call switching signal transmitted from the device is received. Communication system characterized in that it comprises a. 2. The communication system according to claim 1, wherein said control means is configured to be able to set whether or not to transmit said incoming call switching signal. 3. An integrated communication network is constructed by mixing a plurality of communication networks having different communication systems from each other, and the integrated communication network includes a simplified portable telephone system (PHS) private communication network. In a communication system in which a communication device is configured to be communicable through the integrated communication network, the communication device may receive a call from another communication network other than the PHS private communication network in response to transmission from another communication device. , The PH
S, provided that the integrated communication network transmits an incoming call switching signal on condition that the location is registered in the private communication network. The integrated communication network receives the incoming call switching signal transmitted from the communication device. In this case, the incoming call from the communication device other than the PHS private communication network to the communication device is disconnected, and the call from the other communication device is received from the PHS private communication network to the communication device. A communication system comprising: incoming call switching means for switching incoming calls. 4. The system according to claim 3, wherein the incoming call switching means causes the other communication device to transmit a notification signal when the incoming call is switched from the PHS private communication network to the communication device. A communication system as described. 5. An integrated communication network is constructed by mixing a plurality of communication networks having different communication systems from each other, and the integrated communication network includes a simplified portable telephone system (PHS) private communication network. In a communication system in which a communication device is configured to be communicable through the integrated communication network, the communication device is configured to transmit the PHS in response to a call from another communication device.
When a call is simultaneously received from the private communication network and another communication network other than the PHS private communication network, there is provided an incoming call disconnecting means for disconnecting a call from another communication network other than the PHS private communication network. Communications system.