JPH09163449A - Composite mobile communication equipment - Google Patents

Abstract

PROBLEM TO BE SOLVED: To allow the user to receive an incoming call whichever communication system user may select and use it by allowing the equipment to discriminate whether or not the equipment connects to at least one communication system or over among plural communication systems at application of power and allowing the equipment to make position registration. SOLUTION: Plural system control sections 3 are provided as composite communication equipments, the connection with a conversion section (e.g. a cellular system control section 11 and a PHS system control section 10) of the plural systems is selected and the position registration in response to the system is conducted. A line processing section 9 discriminates after application of power whether of not the equipment is within a service area of a cellular system and makes position registration to the cellular system when the equipment is within the area. The line processing section 9 discriminates whether or not the equipment is within a service area of a PHS system when the equipment is at the outside of the service area of the cellular system and makes the position registration of the cellular system. When the equipment is within the service area of the PHS system, the equipment is made position registration to the PHS system and the equipment is in standby in the system selected by the user.

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to a portable telephone, a PH
The present invention relates to a compound mobile communication device in which services of a plurality of communication systems such as S and cordless telephones can be used by one terminal.

[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. The plurality of communication systems have different systems, and the system to be used is determined by using one communication device.

For this reason, there has been conventionally proposed one in which a plurality of services can be received by one terminal (Japanese Patent Laid-Open No. 6-8).
6350 and others).

[0004]

However, even if a communication device that can be used by a plurality of systems is used, the telephone number is different for each communication system. If the system does not have a communicator waiting, it cannot receive the incoming call. In the case of a wireless communication system,
There is a problem that incoming calls are sent only from the area where the location is registered.

For example, in a cellular telephone and a PHS that are widely used at present, even if the cellular and PHS are configured as a compound mobile communication device as they are, the cellular phone or the PHS is used.
If only one of the locations is registered during HS use, incoming calls from the cellular base station, PHS during cellular use
While in use, only an incoming call from the PHS base station will be transmitted. For this purpose, for example, while being used in the cellular, after registering the location in a certain base station, moving to a different area of the cellular while switching to the use in the PHS, turning off the power, and then switching to the cellular in the different area. When the power is turned on, the incoming call is not transmitted from the cellular base station in the area until the location registration is completed there. Also, after registering the location to the base station that is being used in the cellular, move to a different area of the cellular while switching to the use in the PHS, and switch to the cellular in the different area, the location of that area is completed until the location registration is completed there. There is a problem that the incoming call is not transmitted from the cellular base station.

[0006]

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and an object thereof is to provide a composite mobile body capable of receiving an incoming call regardless of which communication system the user is switching to and using. To provide a communication device.

[0007]

In order to achieve the above-mentioned object, the present invention provides a compound mobile communication device which is capable of using services of a plurality of communication systems and has means for switching the plurality of communication systems. When the compound mobile communication device is powered on, it is determined whether or not it is possible to connect to at least one of the plurality of communication systems, and location registration is performed for one or more communication systems of the connectable communication systems. I did it.

Further, while connecting to one of the plurality of communication systems, whether or not connection to another communication system is possible is determined in a random cycle or a fixed cycle, and location registration is performed.

[0009]

Since the present invention is configured as described above, a plurality of communication systems can be used by one mobile communication device, and the location registration is performed for the connectable system. It is possible to provide a compound mobile communication device capable of receiving an incoming call even when the system is in use.

[0010]

Embodiments of the present invention will be described below.

FIG. 1 is a block diagram showing the structure of a composite mobile communication device according to the present invention. Here, a combination of the cellular telephone system and PHS services will be described.

In FIG. 1, 1 is a system control unit, 2 is a voice processing unit, 3 is a plural system control unit, 4 is a receiver, and 5 is a receiver.
Is a transmitter, 6 is a call control unit, 7 is an operation interface,
Reference numeral 8 is an operation unit, 9 is a line processing unit, 10 is a PHS system conversion unit, and 11 is a cellular system conversion unit.

The operation unit 8 constitutes a telephone operation means, and an input signal from the operation unit 8 is output to the system control unit 1 via the operation interface 7. The call control unit 6 is controlled by the system control unit 5 to perform a call operation to a destination and a call operation to a call signal input from the line processing unit 9 via the system control unit 1. Voice processing unit 2
According to a control signal from the system control unit 5, converts the voice data from the line processing unit 9 into voice and outputs the voice to the handset 4, or converts the voice input from the transmitter 5 into voice data and connects the line. Output to the processing unit 9.

Although the broken line portion described above has the same configuration as the conventional telephone as a whole, a multiple system control unit 3 is further provided as a compound communication device, and a conversion unit of a plurality of systems (in this drawing, Cellular system converter 1
1. The connection with the PHS system conversion unit 10) can be switched and the location registration according to the system can be performed. This multiple system control unit 3
Is transmitted to the system control unit 1 under the control of the system control unit 1 and as a result of monitoring a plurality of systems.

The operation of the thus configured composite mobile communication device will be described with reference to a flow chart. FIG. 2 shows an example of a control flow of location registration (first invention) when the hybrid mobile communication device that can use the PHS system and the cellular system of the example of FIG. 1 is powered on.

After the power is turned on, the line processing unit 9 judges whether or not it is within the service area of the cellular system (step 1), and if it is within the area, the location is registered in the cellular system (step 2). Next, when it is outside the service area of the cellular system and when the location of the cellular system is registered in step 2, it is determined whether it is within the service area of the PHS system (step 3). If it is within the service area of the PHS system, the location is registered in the PHS system (step 4), and the process proceeds to step 5. When it is outside the service area of the PHS system, the process proceeds to step 5. Step 5 is a step of waiting in the system selected by the user, and after waiting, the processing shifts to the next processing.

FIG. 3 shows the operation of the second invention, and shows an example of a control flow for monitoring the other system at a random cycle or a fixed cycle while waiting for either PHS or cellular. The compound mobile communication device first waits in the system selected by the user (step 11) and starts a random timer or a periodic timer (step 12). It is determined whether the timer has timed out (step 13), and if it has timed out, it is determined whether the waiting system is PHS or cellular (step 14). When waiting for the cellular, it is checked whether the PHS can be connected (step 15). If the PHS can be connected, the PHS can be connected.
It is checked whether or not location registration is required (step 16), and if necessary, location registration is performed in the PHS (step 17), and then the process returns to the cellular standby (step 18). PHS in step 14
When it is waiting, it is checked whether it is possible to connect to the cellular (step 19). If it is possible, it is checked whether the location registration to the cellular is necessary (step 20). Return to standby (step 22).

According to the present invention, as described above, the waiting system is determined and the position registration for the system is performed. Therefore, even when the mobile communication device is connected to any system, it can be transmitted from other communication systems. It is possible to receive incoming calls without fail.

[0019]

As described above, according to the present invention, it is possible to perform communication using a plurality of communication systems by only having one mobile communication device at all times, and which communication system is used by the user. However, it is possible to provide a communication system capable of receiving an incoming call.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a configuration of a composite mobile communication device according to the present invention.

FIG. 2 is a flowchart showing a control flow of the first invention.

FIG. 3 is a flowchart showing a control flow of a second invention.

[Explanation of symbols]

 1 system control unit 2 voice processing unit 3 multiple system control unit 4 receiver 5 transmitter 6 call control unit 7 operation interface 8 operation unit 9 line processing unit 10 PHS system conversion unit 11 cellular system conversion unit

Claims (5)

[Claims] 1. A composite mobile communication device which is capable of using services of a plurality of communication systems and has means for switching the plurality of communication systems, wherein when the composite mobile communication device is powered on, the plurality of the plurality of communication systems are provided. Of at least one of the above communication systems, and position registration is performed for at least one of the connectable communication systems. 2. The compound mobile communication device according to claim 1, wherein a user can arbitrarily set the type of communication system for judging the connection. 3. A composite mobile communication device, wherein a service of a plurality of communication systems is available, and a means for switching the plurality of communication systems is provided. A compound mobile communication device, wherein position registration is performed by determining whether or not connection to a communication system is possible at a random cycle or a fixed cycle. 4. The compound mobile communication device according to claim 3, wherein a user can change a cycle for determining whether or not connection to another communication system is possible. 5. The compound mobile communication device according to claim 3, wherein a user can prohibit or permit checking whether connection to another communication system is possible.