JPS5834635A - Wide band portable telephone sytem - Google Patents

Abstract

PURPOSE:To obtain a system that enables communication even when a portable telephone travels the service area by making an automatic incoming transfer request through wireless channel every time when travelling the service area through a subscriber's network that has an automatic incoming transferring function. CONSTITUTION:When a portable telephone 10 travels to other service area B, transmission is made to base station radio equipment 9b adding a transfer register request signal to own subscriber's number. On receiving the signal, the radio equipment 9b sends out the received signal to an exchange 11b through a subscriber's line. The exchange 11b sends incoming transfer register request, the number of portable telephone 10a and the number of base station radio equipment 9b to an exchange 11a. The exchange 11a stores it, and in case of incoming to the telephone 10a, transfers to the radio equipment 9b through subscriber's network 12 adding the number of the telephone 10a. At the time of calling of the telephone 10a, the exchange 11b makes confirmation for starting talking to the exchange 11a and sends charge information to the exchange 11a when talking is terminated.

Description

[Detailed description of the invention] In this subscriber telephone network having the automatic transfer function of the letter of invention,
This invention relates to a wide area mobile phone system that expands the service area of a mobile phone system with a small reservice area to a subscriber telephone network by connecting a wireless device to a subscriber line.

As shown in FIG. 1, the conventional /JX mobile phone system in this type of service area has subscriber lines 1a, lb..., base station radio equipment 2a, 2b accommodated in a telephone exchange 11.
@*... is connected, the base station radio equipment 2m, 2b, and the mobile phone 3a, 3b, etc. are connected wirelessly, and the subscriber line is connected to the subscriber phone via the radio equipment. A mobile phone was connected. In this case, each of the mobile telephones 31, 3b, . . . is movable only within a predetermined small service area A, B, . That is, when an incoming call from another telephone subscriber is received by the base station wireless device 2& via the exchange 11, the base station wireless device 2m sets up the wireless line 1114m between the caller and the mobile phone 31, and communicates with the caller within the service area A. It was possible to make calls only to mobile phones 3 & located at Therefore, when the mobile phone 31 moves to the service area B, the mobile phone 31 becomes unable 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 an incoming call to a predetermined arbitrary subscriber telephone, and a function of requesting and registering automatic transfer from an arbitrary subscriber line. Telephone exchange 11&,llb... at 12
is service area A.

Subscriber lines 8 g, 8 b for subscribers within Bφ...
It houses... Subscriber #5atsb-*...
There is a 9m base station wireless device that can be used in common.

9bφ... are connected, and each exchanger 111°11b
. . . and means for transmitting and receiving signals for requesting and registering automatic call transfer.

In service areas A and B @@, there are mobile phones 10m, 10b, etc. that subscribe to those areas, respectively, and these mobile phones 10m, 10b,...e are connected to the base station wireless equipment 9m, 9b, etc. It has the ability to set up any wireless line with any device. Service area A, B
14 ml of wireless lines usable within...
14b...*Service is predetermined.

For example, the mobile phone 10a makes and receives calls to and from other phones in the same manner as in the case of the conventional wireless phone system within the service area of the subscriber. When the mobile phone 10& moves to another service area B, the mobile phone 10m 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 10& is always on standby for incoming calls within service area A, but due to movement to service area B, the mobile phone 10& can no longer receive a predetermined radio line from the base station wireless device 9a. 10m detects this and uses a predetermined control wireless line (this is used for each base station wireless device) to transmit mobile phone 1.
A signal indicating a transfer registration request is automatically transmitted with a subscriber number of 0m added. Or, if mobile phone 10m moves to service area B and becomes unable to receive calls over the wireless line even though it was previously assigned, a mobile phone 10 & transfer alarm will be generated, and the person carrying the mobile phone will be notified by operating the transfer registration request button. The subscriber number and transfer registration request signal are automatically transmitted through the control line.

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

The base station wireless device 9b that received the call transfer request is the exchange 1
1bK, a request signal for transferring an incoming call to the mobile phone 10m to the base station wireless device 9b and the mobile phone 10
& number is transmitted via the subscriber line 8b. Switchboard 11
When b receives the call transfer request and the number of the mobile phone 10m, it sends the signal to the exchange 111 accommodating the mobile phone 10m by adding the number of the base station wireless device 9b that is the transfer destination and sends the signal to the subscriber telephone network. Relay via 12.

The exchange 11Ati% that received the transfer request signal stores the subscriber number of the mobile phone 10m and the number of the transfer destination base station wireless device 9b, registers for transfer, and waits.

When a call is received to the mobile phone 10 in a state where forwarding registration has been performed in this way, the incoming call is received by the 9th exchange ttaa.
The base station radio equipment 9b is attached with the number of the mobile phone 10m and is housed in the exchange 11bK via the subscriber telephone network 12.
transfer to. Upon receiving the transfer signal and the number of the mobile phone 10m, the base station wireless device 9b sets up a wireless line for communication and calls the mobile phone 10m according to a predetermined wireless line setting procedure. The communication between the caller and the mobile telephone 10m via the telephone wireless line, subscriber line and subscriber telephone network set up in this way.
You will be able to talk to.

In the case of a call from mobile phone ioa, between the base station wireless device 9b! As in the case of receiving a call, a radio line for a call is set up according to a predetermined radio line setting procedure, and a dial signal is transmitted. Upon receiving the call request, the base station wireless device 9b issues a call request to the exchange 11b. Exchange 11bd Exchange 11a that accommodates the mobile phone 10& that made the call request
K via the subscriber telephone network 12, the base station wireless device 9b
Confirmation procedures will be taken to start a call in service area B. Furthermore, after the call ends, the exchange 11b also sends a call end signal and an information signal regarding the call charge to the exchange 11.
Send to a. After the exchange 11b finishes sending and receiving the confirmation signal, it receives a dial signal from the 1SIW telephone 10b, sets up a call line with the other party via the subscriber telephone network 12, and returns the mobile phone tea to its original service area. You will be able to make calls in service area B in the same way as if you were in your home.

As explained above, 1. 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 can If you are within the service area of any base station wireless device, you can now make and receive calls anywhere. In other words, by sequentially installing base station wireless equipment in places where subscriber lines are connected, such as general houses, offices, factories, restaurants, underground malls, and sidewalks, etc., according to the convenience of users, It is possible to provide mobile telephone services to subscriber telephones and public telephones with wide-area mobile telephone service that is mobile over the entire subscriber telephone network. Furthermore, the base station wireless device notifies the base station wireless devices 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 service area migration.

[Brief explanation of the drawing]

Figure 1 shows the line configuration of the conventional mobile phone system, Figure 2
The figure is a diagram showing a line configuration of an embodiment of the wide area mobile telephone system according to the present invention. 8m, 8b: subscriber line, 9m, 9b: base station radio equipment,
toa, tob: mobile phone, 14m, 14b: wireless line group, 11&,llb: exchange, 12: subscriber telephone network. Patent applicant: Nippon Telegraph and Telephone Public Corporation agent Taku Kusano Figure 71

Claims (1)

[Claims] (1) In a subscriber's telephone network, which 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 to and from the subscriber line via the subscriber line is connected to the subscriber line. Using a mobile phone that has a function to automatically send and receive signals for incoming call transfer requests and wireless line setup requests to and from a base station wireless device via a wireless line, the mobile phone connects to a nearby base station wireless device. If automatic call forwarding is registered with the switchboard where the subscriber number of the mobile phone is registered through the device via the subscriber telephone network, then when a call is received on the mobile phone, the call will be forwarded from the converter. The incoming call is transferred to the base station wireless device that made the request, and a wireless line is set up between the base station wireless device that received the call and the mobile phone that made the incoming call transfer request, and the call is transferred between the caller and the mobile phone. A wide-area mobile phone system that is characterized by the ability to make calls between telephones.