JPS6352823B2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention expands the service area of a mobile telephone system, which has a small service area, to the entire subscriber telephone network by connecting a wireless device to the subscriber line in a subscriber telephone network having an automatic transfer function. It is related to the method.

Conventionally, as a small mobile phone system for this type of service area, subscriber line 1 (1a,
1b) consists of a base station wireless device 2a connected to a mobile phone 3a, and a wireless device is connected to the subscriber line instead of a telephone to give the mobile phone mobility only within a small service area A. It has been known. That is, when an incoming call from another telephone subscriber arrives at the base station wireless device 2a via the exchange 5, the base station wireless device 2a sets up a wireless line 4a between the mobile phone 3a and the caller and the service area. It was possible to make a call only to the mobile phone 3a located inside A. Therefore, the mobile phone 3a
When mobile phone 3a moves to service area B,
had the drawback that it was impossible to make and receive calls.

The present invention aims to eliminate these drawbacks by providing an automatic call forwarding function to the subscriber telephone network, connecting a wireless device that is intended for multiple shared use as a terminal of the subscriber line, and making it possible to notify incoming calls over a wide area. We installed a wireless device that sends signals wirelessly, and when necessary, calls a mobile phone using an incoming call notification signal.Even if the service area changes, the system tracks and automatically forwards the call, making it possible to make a call. The drawings will be described in detail below.

FIG. 2 shows an embodiment of the present invention, in which reference numeral 6 indicates a subscriber line having a function of automatically forwarding an incoming call to a predetermined arbitrary subscriber phone, and a function of requesting and registering automatic transfer from an arbitrary subscriber line. Telephone network, 7a, 7b
8a, 8b, 8c, and 8d are subscriber lines connected to the service areas A, B, C, and D; 9a, 9b, 9c and 9d are subscriber lines 8a,
8b, 8c, and 8d, and is a base station wireless device that can be used in common, and has means for transmitting and receiving signals for requesting and registering automatic call transfer with exchanges 7a and 7b. 10a, 10b, 1
0c and 10d are mobile phones that subscribe to service areas A, B, C, and D, and have the function of setting up any wireless line with any base station wireless device. 11a, 11b, 11c, and 11d are radio line groups that can be used within service areas A, B, C, and D. Reference numeral 12 denotes a radio device for making calls over a wide area, and transmits an incoming call notification signal over the radio 13 to the entire calling area in response to a calling request from a mobile phone from the exchanges 7a and 7b.

When the mobile phone 10a receives an incoming call, the exchange 7a accommodating the mobile phone 10a requests the paging radio device 12 to send out an incoming notification signal. Upon receiving the request, the paging radio device 12 transmits an incoming call notification signal via the radio 13 to a wide paging area.
After receiving the corresponding incoming call notification signal, the mobile phone 10a sets up a wireless line with a nearby base station wireless device, for example, if it has moved within the service area D, it sets up a wireless line with the base station wireless device 9d. Make a call transfer request to. Upon receiving the call transfer request, the base station wireless device 9d issues a call transfer request to the exchange 7a that accommodates the mobile phone 10a via the exchange 7b and the subscriber telephone network 6. The exchange 7a that received the call transfer request transfers the incoming call to the mobile phone 10a to the subscriber telephone network 6, the exchange 7b, and the subscriber line 8d.
The data is transferred to the base station wireless device 9d via the base station wireless device 9d. The base station wireless device 9d that received the transfer and the mobile phone 10a are connected by the wireless line that has already been set up, and thereby a call can be made between the caller and the mobile phone 10a.

In the case of a call, if the mobile phone 10a moves into the service area D, it sets up a radio line for a call through a predetermined radio line setting procedure with the base station radio device 9d, and sends out a dial signal.

The base station wireless device 9d that has received the request for outgoing calls makes a request to the exchange 7b to make outgoing calls. The exchange 7b performs a confirmation procedure for starting a call in the service area D of the base station wireless device 9d, via the subscriber telephone network 6, to the exchange 7a that accommodates the mobile phone 10a that has made the outgoing call request. Take. Furthermore, after the call ends, the exchange 7b also transmits a call termination signal and an information signal regarding the call charge to the exchange 7a. After receiving all the confirmation signals, the exchange 7b receives a dial signal from the mobile phone 10a, sets up a call line with the other party via the subscriber telephone network 6, and returns the mobile phone 10a to the original service area A. service area D as if you were in
It is also possible to make calls.

As explained above, a mobile phone can make and receive calls in the same way as conventional mobile phone systems with small service areas, regardless of where the mobile phone moves as long as it is in the vicinity where a base station wireless device is installed. By sequentially installing base station wireless equipment in places where subscriber lines are connected, such as ordinary houses, offices, and restaurants, according to the convenience of users, it will be possible to replace conventional subscriber telephones and public telephones. A more mobile wide area mobile phone system can be constructed.

[Brief explanation of the drawing]

FIG. 1 shows an example of a line configuration of a conventional mobile telephone system, and FIG. 2 shows an example of a line configuration of an embodiment of the present invention. 1a, 1b: subscriber line, 2a, 2b: base station radio equipment, 3a, 3b': mobile phone, 4a, 4b:
Wireless line group, 5: Exchange, 6: Subscriber telephone network, 7
a, 7b: exchange, 8a, 8b, 8c, 8d: subscriber line, 9a, 9b, 9c, 9d: base station radio equipment, 10a, 10b, 10c, 10d: mobile phone, 11a, 11b, 11c, 11d: Radio line, 12: Calling radio device, 13: Calling radio line.

Claims (1)

[Claims] 1. The telephone network has a function to automatically forward incoming calls to any predetermined subscriber line, and a function to request and register automatic forwarding from any subscriber line, and each subscriber line terminal and each The mobile phone has a wireless device that establishes a wireless line between an unspecified subscriber line terminal and an unspecified mobile phone, and the entire service area of the mobile phone spans the service area of multiple subscriber line terminals. A paging radio device that wirelessly transmits an incoming call notification signal is provided, and when the mobile phone receives the incoming call notification signal, the incoming call is automatically transferred to the nearby subscriber line terminal via the nearby subscriber line terminal. Request and registration, and set up a wireless line between the transferred subscriber line terminal and the mobile phone according to a predetermined procedure, thereby establishing a subscriber telephone line between the caller and the mobile phone. Wide area mobile phone system.