JPH09172678A - Composite vehicular communication system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable call-incoming in whichever communication system a user uses a communication equipment by using the communication equipment which is provided with a function corresponding to the plural communication systems and constituting the system an exchange corresponding to the communication equipment. SOLUTION: An input signal from an operating part 28 is outputted to a system control part 21 with an operation interface 27. A call control part 26 is controlled by the control part 21 and executes the calling operation to a destination and a terminating operation from a line processing part 29 as against an incoming call signal. A voice processing part 22 outputs voice data from the line processing part 29 to a telephone receiver as voice and outputs voice from a transmitter 25 to the line processing part 29 as a voice signal. A plural system-control part 23 monitors whether the communication system selected by the user is connected, reports that the system is changed to more than one communication system if there is a change request, reports system change to the communication system and executes connection to the set communication system. Thus, call-incoming is surely enabled to whichever system connection is executed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a composite mobile communication system capable of utilizing a plurality of communication systems.

[0002]

2. Description of the Related Art In recent years, the demand for various communications has increased,
Multiple systems are running for the convenience of the user. For example, there are a cordless telephone system, a PHS, a cellular telephone system, an amateur radio system and the like that use radio waves, a light that uses the IrDA standard and the like, a general subscriber telephone, and a line that uses a wired line such as ISDN.

[0003]

The plurality of communication systems have different systems, and the system to be used is determined by using one communication device. Also, even if you use a communication device with multiple systems, the telephone number is different for each communication system, so if an incoming call arrives in one of the communication systems, the incoming call will be received unless the communication device is waiting for that communication system. I can't do it.

For example, in the currently widely used cellular telephones and PHS, the PH is used when waiting in the cellular.
The S incoming call cannot be received, and the cellular incoming call cannot be received when waiting in the PHS. Therefore, even a mobile communication device having two communication systems of cellular and PHS may have different telephone numbers, and the base station of each system determines which one the mobile communication device is waiting for. And if the exchange does not know, it cannot reliably receive the incoming call.

An object of the present invention is to carry a plurality of mobile communication devices by using a communication device having a function corresponding to a plurality of communication systems and by configuring the system with a switching device corresponding to the communication devices. An object of the present invention is to provide a communication system capable of receiving an incoming call regardless of which communication system the user is using without needing to use it.

[0006]

In order to achieve the above object, the present invention provides a compound mobile communication device having a control means having a function of switching and connecting a plurality of communication systems, and the compound mobile communication. A composite mobile communication system is configured from an exchange having a function of detecting connection from an exchange and notifying the exchange of another communication system.

Further, the exchange notifies the composite mobile communication device of an incoming call from one or more communication systems including at least a communication system which has detected a connection when an incoming call is received from any of the communication systems.

Further, the exchange is configured to notify the caller of the complex mobile communication device of the change of the communication system when the communication is changed and communication is performed due to an incoming call from a certain communication system.

Further, when changing the communication system to which the compound mobile communication device is connected, when changing the communication system to another communication system,
It is configured to notify the communication system to be connected.

As the connection detecting means from the compound mobile communication device, the position registration information of the compound mobile communication device to the communication system is used.

As described above, the mobile communication device and the composite mobile communication device are connected to each other by adding the function corresponding to the communication system and the function of judging whether or not the communication system provided in the communication device can be used. Since the mobile communication system is composed of an exchange having a function of detecting the fact and notifying the exchange of another communication system, a plurality of communication systems can be used by one mobile communication device, and a composite mobile communication device can be used. It is possible to provide a communication system capable of receiving an incoming call regardless of which system is waiting.

[0012]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to FIGS.

FIG. 1 is an explanatory diagram showing an embodiment of a composite mobile communication system according to the present invention. Here, a cellular phone and a PHS compound telephone will be described as an example.

In FIG. 1, reference numeral 1 denotes a compound mobile communication device, which is provided with means capable of utilizing two communication systems of cellular and PHS in this example. Symbols 2 and 3 are P respectively
Radio lines of HS and cellular, reference numerals 3 and 4 are PHS and cellular base stations, respectively, and a PHS switch 8 and a cellular switch 9 are provided through wired lines 6 and 7, respectively.
It is connected to the. The PHS switch 8 and the cellular switch 9 are connected through wired lines 11 and 12, respectively, to the wired line switch 1.
3 is connected to the wired line 14. Here, the PHS switch 8 and the cellular switch 9 are further connected by a wired line 10. When one of the PHS switch 8 and the cellular switch 9 detects a connection from the complex mobile communication device 1, another switch is connected. It is possible to notify that it is connected to 8 or 9.

FIG. 2 shows a control flow processed in the PHS switch 8 and the cellular switch 9 of FIG.

Any of the exchanges constantly monitors whether or not there is a connection from the mobile communication device (STEP 1), and if there is a connection, checks whether the connection request is a composite mobile communication device (STEP 2), If it is a mobile communication device, it notifies the other communication system that there is a connection to the other communication system (STEP 3). It is also possible to use the location registration information to determine whether or not there is a connection at this time.

FIG. 3 is a control flow when the PHS exchange 8 and the cellular exchange 9 of FIG. 1 receive an incoming call after performing the notification processing.

First, each of the PHS switch 8 and the cellular switch 9 determines whether there is an incoming call to the composite mobile communication device 1 (STEP 11), and if there is an incoming call, determines whether there is a notification from another communication system. (STEP 1
2) If there is a notification, an incoming call is notified to another communication system (STEP 13), and the caller is notified that the communication system has changed (STEP 14). At this time, it is possible to receive an incoming call from one or more communication systems including the system notified of the incoming call.

[0019]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT FIG. 4 is a block diagram showing the configuration of a compound mobile communication device having two communication systems of PHS and cellular. FIG. 5 shows a control flow when the communication system is changed.

Reference numeral 21 is a system control unit, 22 is a voice processing unit, 23 is a plurality of system control units, 24 is a receiver, 25 is a transmitter, 26 is a call control unit, 27 is an operation interface, 28 is a telephone operation means. An operating unit which is an input means to configure, 29 is a line processing unit, 30 is a PHS system conversion unit, and 31 is a cellular system conversion unit.

In the figure, an input signal from the operation unit 28 is output to the system control unit 21 via the operation interface 27. The call controller 26 is the system controller 2
Controlled by 1, the call-out operation to the destination and the call-in operation for the call-in signal input from the line processing unit 29 via the system control unit 21 are performed. The voice processing unit 22 converts the voice data from the line processing unit 29 into voice and outputs it to the handset 24 according to the state controlled by the system control unit 21, or outputs the voice input from the transmitter 25 as voice data. And output to the line processing unit 29.

The portion shown by the broken line in FIG. 4 has the same structure as the conventional telephone as a whole. This embodiment is characterized by the cellular system conversion unit 31, the PHS system conversion unit 30 and the control method for switching them. The plural system control unit 23 is the system control unit 2
The system control unit 21 is informed of the status of the results of monitoring of a plurality of systems under the control of 1.

In FIG. 5, the compound mobile communication device is first connected to the system selected by the user, and constantly monitors whether or not the communication system selected by the user is connected (ST.
EP21), and whether or not there is a system change request is checked (STEP22), and if there is a system change request, one or more communication systems are notified of the system change and the system change is notified to the communication system. (ST
EP23). Then, it connects to the set communication system (STEP 24).

With the above-mentioned functions, it is possible to reliably receive an incoming call regardless of which system the mobile communication device is connected to.

[0025]

As described above, according to the present invention,
It is possible to provide a communication system capable of receiving an incoming call regardless of which communication system the user is using, by providing a single mobile communication device for communication.

[Brief description of the drawings]

FIG. 1 is an explanatory diagram showing an embodiment of a composite mobile communication system according to the present invention.

FIG. 2 is a chart showing a control flow processed in a PHS switch 8 and a cellular switch 9 of FIG.

FIG. 3 is a control flow chart when the incoming call is received after the notification processing is performed in the PHS switch 8 and the cellular switch 9 of FIG.

FIG. 4 is a block diagram of a case where the present invention is applied to a combined mobile device of cellular and PHS.

FIG. 5 is a chart diagram showing a control flow when the present invention is applied to a combined mobile device of cellular and PHS.

[Explanation of symbols]

 1 compound mobile communication device 2 line by PHS radio wave 3 line by cellular radio wave 4 PHS base station 5 cellular base station 6 line between PHS base station and PHS switch 7 line between cellular base station and cellular switch 8 PHS switch 9 Cellular exchange 10 Line between PHS exchange and cellular exchange 11 Line between PHS exchange and general exchange 12 Line between cellular exchange and general exchange 13 General exchange 14 General line network 21 System control unit 22 Voice processing unit 23 Multiple system control unit 24 Handset 25 Transmitter 26 Call control unit 27 Operation interface 28 Operation unit 29 Line processing unit 30 PHS system conversion unit 31 Cellular system conversion unit

Claims (5)

[Claims] 1. A compound mobile communication device comprising a control means having a function of connecting and switching a plurality of communication systems,
A composite mobile communication system comprising: an exchange having a function of detecting connection from the composite mobile communication device and notifying the exchange of another communication system. 2. The exchange, when receiving an incoming call from any one of the communication systems, notifies the composite mobile communication device of an incoming call from one or more communication systems including at least a communication system which has detected a connection. The composite mobile communication system according to claim 1, which is configured. 3. The exchange is configured to notify a caller of the complex mobile communication device of the change of the communication system when the communication is changed and communication is performed by an incoming call from a certain communication system. The composite mobile communication system according to claim 2, characterized in that: 4. When changing the communication system to which the complex mobile communication device connects, the communication system to be connected is notified to another communication system. Hybrid mobile communication system. 5. The composite mobile communication according to claim 1, wherein position registration information of the composite mobile communication device in a communication system is used as connection detecting means from the composite mobile communication device. system.