JPS61177038A - Mobile communication system - Google Patents

Abstract

PURPOSE:To expand a range to be used by a mobile machine by assigning an individual discrimination No. to the mobile machine, arranging base stations properly decentralizedly in a service area, connecting the mobile machine to an equipped telephone set or connecting the mobile machine to another mobile machine, and arranging a mobile telephone exchange for charging the mobile machine subscriber in accordance with the using status of the mobile machine. CONSTITUTION:A range covering ranges (radio zones) 20-24 to which radio waves from the base station can be reached is the service area. Receiving a calling signal from the mobile machine 5, the base station executes automatic transmission to the mobile telephone exchange (center) 7 and sends a terminating subscriber's No. (#D) and a mobile machine No. (#A) on the basis of overdialing. The center checks whether the subscriber corresponding to #A exists or nor or whether the subscriber pays the telephone rate or not, and if the subscriber is a bad one, sends a busy tone (BT) and disconnects the circuit from the base station #B. When the subscriber is a normal one, executes automatic transmission to the #D, connects an output line to the #D with an input line from the #B, and if an answer from the #D is received, charging is started on the basis of the start of talking.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a mobile radio communication system, and particularly to a mobile communication system as a public communication system that can be connected to an existing telephone.

[Prior Art and Problems to be Solved by the Invention] Cordless telephones are conventional mobile communications of this type. Conventional cordless telephones cannot be used unless the base unit and handset are paired, and for example, even if the handset is taken to another location, it cannot be connected to another base unit. However, it had the disadvantage that its usable range was limited to a narrow range.

[Failure to solve the problem]

The present invention provides an individual identification number to a mobile device, which is a handset of a conventional cordless telephone, and base stations, which are a base device of a conventional cordless telephone, are appropriately distributed and arranged within a service area. By providing a mobile telephone exchange that connects mobile terminals and existing telephones or between mobile terminals and charges mobile terminal subscribers according to usage, the use of mobile terminals can be improved. The aim is to expand the scope to the entire city or even the whole country.

〔Example〕

Next, the present invention will be explained with reference to the drawings.

FIG. 1 is a system configuration diagram of an embodiment of the present invention. In the figure, 1 is the existing telephone network of Nippon Telegraph and Telephone Public Corporation (Pub
lic Switching Telephone N
network: PSTN). 20, 21,
22, 23, and 24 are the range of radio waves from the base station (wireless zone), and the range covered by this wireless zone is
This is the service area of this mobile phone system. 30, 31
, 32, 33, and 34 are base stations, which emit radio waves to mobile devices and receive radio waves from mobile devices within its own wireless zone.

40, 41, 42, 43, and 44 are subscriber lines from the local telephone office to the base station, and 5 is a mobile device (terminal station).

6 is a subscriber line from the local telephone office to the mobile telephone exchange 7;

Reference numeral 7 denotes a mobile telephone exchange which is a characteristic configuration of the present invention, and is a so-called private branch exchange.
Exchange: PBX). 8 is a code converter that converts a telephone number (mobile device/number) into a radio calling code. 9 is a transmitter, and 10 is an antenna.

11 is an existing telephone.

FIGS. 2 and 3 show an example of the operation of the mobile communication system of the present invention. FIG. 2 is a 70-chart for making a call from a mobile device, and FIG. 3 is a flowchart for receiving a call to a mobile device. be. The terminals in FIGS. 2 and 3 correspond to the mobile device 5 in FIG. The telephone includes a machine 9 and an antenna 10, and the telephone corresponds to an existing telephone 11. Further, in order to make the numbers easier to understand, terminal #A, base station #B, center #C2 and telephone #D are respectively used.

In Figure 2, when the base station receives a call signal from a mobile device, it automatically calls the center and uses overdial (Znd DIAL) to receive the destination number (#D).
) and the mobile device number (#A). At the center, first #A
It checks the subscriber file to see if there are any subscribers or if they are paying fees, and if the subscriber is a bad subscriber, it sends out a busy tone (BT) and disconnects the line with #B.

If the subscriber is a normal subscriber, a call is automatically made to #D, the outgoing line to #D and the incoming line from #B are connected, and if there is a response from #D, it is assumed that the call has started and billing starts.

The above is an example of a call originating from a mobile device, and an example of receiving a call to a mobile device will be explained with reference to FIG. The connection report from #D to #A is transmitted from #D to the center by over dialing. Validation check is carried out at the center.
), convert it to a calling code, and make a wireless call from the transmitter. At this time, there are two ways to call with only the calling number (#A), and
There is also a method of adding D and calling it.

If the mobile device is equipped with a display pager function that can display the #D number, the mobile device can also know who is calling.

Transmission of an incoming call response from the mobile device (terminal) in FIG. 3 can be done either by automatic response or by dialing the dialed number after seeing the #D display.

After that, #D and #A are connected in the same way as for the outgoing call.

〔Effect of the invention〕

As explained above, the present invention has the effect of dramatically expanding the conventional service area, which was limited to a narrow area, to a wider area. Moreover, it has the advantage that there is no need to make any changes to the existing network (PSTN) in order to realize this.

[Brief explanation of drawings]

FIG. 1 is a system configuration diagram of an embodiment of the present invention, FIG. 2 is a flowchart showing an example of the operation of making a call from a mobile device of the present invention, and FIG. 3 is a flowchart showing an example of the operation of receiving a call to the mobile device. be. 1...Existing telephone network (PSTN), 20.21.
22゜23, 24... Wireless zone, 30.31
．． 32.33.34...Base station, 40.41.
42.43.44...Subscriber line, 5...
・Mobile device, 6... Subscriber line, 7... Mobile telephone exchange (PBX), 8... Code converter, 9... Transmitter , 10... antenna,
11...It is a telephone. Agent: Susumu Uchihara, Patent Attorney, -1-O Figure Z

Claims (1)

[Claims] a mobile telephone exchange connected to a telephone line switching network through a plurality of subscriber lines; a code converter connected to the mobile telephone exchange and converting a telephone number into a radio calling code; and a code converter connected to the code converter. a radio transmitter that transmits a radio call code; a base station that is connected to a telephone circuit switched network via a subscriber line and is composed of a radio transceiver and a line controller; a receiver that receives the radio call code; and the base station. A mobile communication system comprising a mobile phone comprising a transmitter/receiver, an operation section, and a control section for transmitting and receiving radio signals to and from the mobile phone.