JPS6351581B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention is a wide-area mobile telephone system that expands the service area of a small mobile telephone system to a subscriber telephone network by connecting a wireless device to the subscriber line in a subscriber telephone network having an automatic transfer function. It concerns the telephone system.

In the conventional mobile telephone system for small service areas of this type, as shown in FIG. and the base station wireless devices 2a, 2b... and the mobile phones 3a, 3a, 3b, respectively.
3b...... were wirelessly connected, and a mobile phone was connected to the subscriber line via a wireless device instead of the subscriber's telephone. In this case, each mobile phone 3a, 3
b...... was a system that allowed mobility only within predetermined small service areas A, B, etc., respectively. That is, when an incoming call from another telephone subscriber is received by the base station wireless device 2a via the exchange 11, the base station wireless device 2a sets up a wireless line 4a between the caller and the mobile phone 3a, and connects the caller with the mobile phone 3a. It was possible to make calls only to the mobile phone 3a located at the mobile phone 3a. Therefore, mobile phone 3
When a moves to service area B, mobile phone 3
A had the disadvantage that it was impossible to make and receive calls.

In order to eliminate these drawbacks, this invention utilizes the automatic transfer function of the subscriber telephone network and the function of setting up any wireless line with any base station wireless device, so that calls can be made even if the service area is changed. This provides a wide-area mobile phone system that makes it possible to

FIG. 2 shows an embodiment of the present invention, which is a subscriber telephone network having a function of automatically forwarding incoming calls to any predetermined subscriber telephone, and a function of requesting and registering automatic forwarding from any subscriber line. Telephone exchanges 11a and 11b in 12 are service area A,
Subscriber lines 8a and 8b for subscribers in B...
It houses... Subscriber lines 8a, 8b...
… has base station wireless equipment 9a, 9b that can be used in common.
...... are connected, and the exchanges 11a and 11 are connected, respectively.
b... and means for transmitting and receiving signals for requesting and registering automatic call transfer. In service areas A and B, there are mobile phones 10a and 10b that subscribe to these areas, respectively, and these mobile phones 10a and 10b are connected to base station radio equipment 9a and 9b. It has the ability to set up any wireless line with any device.
The wireless line groups 14a, 14b, etc. that can be used within the service areas A, B, etc. are determined in advance.

For example, while the mobile telephone 10a is within the service area A of the subscriber, it makes and receives calls to and from other telephones in the same manner as in the conventional system. When the mobile phone 10a moves to another service area B, the mobile phone 10a automatically sets up a wireless line with the base station wireless device 9b of the service area B, and sends a call transfer request signal to the service area B. Send. For example, the mobile phone 10a is always on standby for incoming calls within service area A, but due to movement to service area B, the mobile phone 10a becomes unable to receive a predetermined wireless line from the base station wireless device 9a. 10a detects this and sends a signal indicating a transfer registration request by adding the subscriber number of mobile phone 10a using a predetermined control wireless line (this is used for each base station wireless device). Send automatically. Alternatively, if the mobile phone 10a moves to service area B and it is no longer possible to receive calls using the previously assigned wireless line, the mobile phone 10a will issue an alarm, and the user can subscribe by operating the transfer registration request button. A user number and a transfer registration request signal are automatically transmitted through a control line.

Base station wireless device 9 that received the call transfer request signal
b transmits a response signal and a signal for a wireless line setting procedure, such as an available wireless line number for telephone calls, to the mobile phone 10a. The mobile phone 10a that has received the response signal and the wireless line number memorizes available wireless lines and stands by.

The base station wireless device 9b that received the call transfer request sends a request signal for transferring the incoming call to the mobile phone 10a to the base station wireless device 9b and the number of the mobile phone 10a to the exchange 11b via the subscriber line 8b. and send. When the exchange 11b receives the call transfer request and the number of the mobile phone 10a, the exchange 11b transmits the signal to the exchange 1 that accommodates the mobile phone 10a.
The number of the base station wireless device 9b, which is the forwarding destination, is added to 1a and relayed via the subscriber telephone network 12. The exchange 11a that has received the transfer request signal stores the subscriber number of the mobile phone 10a and the number of the transfer destination base station wireless device 9b, that is, performs transfer registration and waits.

When a call is received to the mobile phone 10a with transfer registration performed in this way, the exchange 11a that received the call adds the number of the mobile phone 10a and transfers the call to the exchange 11b via the subscriber telephone network 12. The data is transferred to the base station wireless device 9b located there. Upon receiving the transfer signal and the number of the mobile phone 10a, the base station wireless device 9b sets up a wireless line for communication and calls the mobile phone 10a according to a predetermined wireless line setting procedure. A call can be made between the caller and the mobile phone 10a via the call wireless line, subscriber line, and subscriber telephone network thus set.

In the case of a call from the mobile phone 10a, a radio line for the call is set up by a predetermined radio line setting procedure in the same manner as in the case of an incoming call with the base station radio device 9b, and a dial signal is transmitted. The base station wireless device 9b, which has received the call request, issues a call request to the exchange 11b. The exchange 11b sends the base station wireless device 9b via the subscriber telephone network 12 to the exchange 11a that accommodates the mobile phone 10a that made the call request.
Confirmation procedures are taken before starting a call in service area B. Further, after the call ends, the exchange 11b also transmits a call termination signal and an information signal regarding the call charge to the exchange 11a. After the exchange 11b finishes transmitting and receiving the above-mentioned confirmation signal, it receives a dial signal from the mobile phone 10b, sets up a call line with the other party via the subscriber telephone network 12, and the mobile phone 10a returns to the original service. Area A
You can make calls in service area B in the same way as if you were in service area B.

As explained above, by making an automatic call forwarding request via a wireless line each time the service area changes via a subscriber telephone network with an automatic call forwarding function, mobile phones have traditionally been serviced only in one service area. However, if you are within the service area of any base station wireless device, you can make and receive calls anywhere. In other words, by sequentially installing base station wireless equipment in places where subscriber lines are connected, such as ordinary houses, offices, factories, restaurants, underground malls, and sidewalks, according to the convenience of users, it will be possible to replace conventional general subscriber telephone lines. It is possible to provide mobile, wide-area mobile phone service over the entire subscriber telephone network instead of public telephones or public telephones. Further, the base station wireless device includes:
Notifies base station radio equipment in other adjacent service areas accommodated in the same exchange that the mobile phone has made a call transfer request. This allows the mobile phone to suppress an increase in traffic due to call transfer requests due to a change in service area.

[Brief explanation of the drawing]

FIG. 1 is a diagram showing a line configuration of a conventional mobile phone system, and FIG. 2 is a diagram showing a line configuration of an embodiment of a wide area mobile phone system according to the present invention. 8a, 8b: subscriber line, 9a, 9b: base station radio equipment, 10a, 10b: mobile phone, 14a,
14b: Wireless line group, 11a, 11b: Exchange,
12: Subscriber telephone network.

Claims (1)

[Claims] 1. In a subscriber telephone network that has the function of automatically forwarding incoming calls to any predetermined telephone subscriber line and the function of requesting and registering automatic forwarding from any telephone subscriber line, A base station wireless device having a function of transmitting and receiving signals for automatic transfer requests via a subscriber line is connected to the subscriber line, and when the base station wireless device leaves the vicinity of the base station wireless device, other nearby base station wireless devices Call transfer requests to and from
Using a mobile phone that has a function of automatically transmitting and receiving signals for requesting wireless line settings via a wireless line, the mobile phone can communicate with the mobile phone via the subscriber telephone network through a nearby base station wireless device. By registering automatic call forwarding with the exchange that registers the subscriber number, when a mobile phone receives a call, the exchange forwards the call to the base station wireless device that has requested the call forwarding. death,
The base station wireless device receiving an incoming call sets up a wireless line with the mobile phone that has made a call transfer request, and enables a call between the caller and the mobile phone. Telephone method.