JPH05227337A - Public telephone charging control system in radio communication system - Google Patents

Abstract

PURPOSE:To attain a connection in its own station not through a subscriber exchange and to use a radio speech channel effectively. CONSTITUTION:A charging pulse measurement section 61 measures a pulse width and a pulse interval of a charging pulse sent from a subscriber exchange 1 and stores the result to a memory 7 as charging pulse information. A charging pulse transmission section 62 reads the charging pulse information stored in the memory 7 and sends the information to all terminal stations connected to a base station 4 via a control channel. A charging pulse reception section 101 receives the charging pulse information sent from the charging pulse transmission section 62 and stores it to a memory 11. A speech channel release instruction section 102 forms a loop (a) for its own station call called from a public telephone set 12 accommodated in the terminal station 8 to a subscriber 13 of a same terminal station based on a command of a base station controller 6 to release radio speech channels 14,15 between the base station 4 and the terminal station 8. A charging pulse transmitter 19 sends a charging pulse to the public telephone set 12 according to the charging pulse information stored in the memory 11.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a public telephone billing control system in a wireless communication system.

[0002]

2. Description of the Related Art Conventionally, as shown in FIG. 2, a subscriber exchange 1, a base station 4 connected to the subscriber exchange 1, and a terminal station connected to the base station 4 by wireless communication channels 14 and 15. In a wireless communication system configured to control charging for a local call made from a public telephone 12 accommodated in a terminal station 8 to a subscriber 13 accommodated in the same terminal station. In the telephone billing control system, the call path from the public telephone 12 to the subscriber 13 is used to connect the call switch 9 of the terminal station 8, the radio call channels 14 and 15, the call switch 5 of the base station 4, and the subscriber exchange 1. If the internal trunk 16 of the subscriber switch and the call switch 2 of the subscriber exchange 1 are used, the charge pulse from the charge pulse transmitter 3 of the subscriber exchange 1 to the public telephone 12 via the radio call channel 14 Sending billing control has been performed.

[0003]

In the public telephone billing control method in the above-mentioned conventional wireless communication system, when a call is made from a public telephone to a subscriber accommodated in the same terminal station, the base station wirelessly transmits to the terminal station. Since the billing pulse is sent to the public telephone using the call channel, even if the in-station connection can be made in the same terminal station, the in-station connection cannot be performed,
Since the wireless call channel cannot be released, there is a drawback that the wireless call channel cannot be effectively used.

[0004]

SUMMARY OF THE INVENTION A public telephone billing control system in a wireless communication system of the present invention comprises a subscriber exchange and
In a wireless communication system including a base station connected to the subscriber exchange and at least one terminal station connected to the base station by a wireless line, a public telephone housed in the terminal station is connected to the same terminal station. In a public telephone billing control system in a wireless communication system for controlling billing for a local call issued to a subscriber, a pulse width and a pulse interval of a billing pulse sent from the subscriber exchange to the base station are measured. Means for storing the charging pulse information in the first memory, and means for reading the charging pulse information stored in the first memory and transmitting it to all terminal stations connected to the base station via a control channel. Means for receiving the charging pulse information transmitted from the base station in the terminal station and storing the charging pulse information in the second memory; Means for forming a call path loop for this local call based on an instruction from the local station and releasing the corresponding radio call channel between the base station and the terminal station; and the second memory after the radio call channel is released. And a means for transmitting a charging pulse to the public telephone according to the charging pulse information stored in.

[0005]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, the present invention will be described with reference to the drawings.

FIG. 1 is a block diagram of an embodiment of the present invention.
A wireless communication system comprising a subscriber exchange 1, a base station 4 connected to the subscriber exchange 1, and a terminal station 8 connected to the base station 4 by radio communication channels 14 and 15 is shown. A case is shown in which an in-house call is issued from a public telephone 12 accommodated in a station 8 to a subscriber 13 of the same terminal station. In this example, the terminal station is illustrated, but it may be a relay station, and for convenience of explanation, one of the plurality of terminal stations is shown.

[0007] The subscriber exchange 1 has a call switch 2 constituting a call path, a trunk 16 connected to the call switch 2 for use in a call within the station, and a charging pulse for transmitting a charging pulse through the trunk 16 within the station. The base station 4 is configured to include the transmitter 3, the call switch 5, the base station control device 6, the memory 7, and pseudo loop circuits 17 and 18 forming a loop circuit. The base station controller 6 measures the pulse width and pulse interval of the charging pulse and stores the charging pulse information in the memory 7 as the charging pulse information, and the charging pulse information stored in the memory 7 is read out and sent to the terminal station 8. The charging pulse transmission unit 62 is provided. The terminal station 8 includes a call switch 9 and a terminal station control device 1
0, a memory 11, and a billing pulse transmitter 19 for sending a billing pulse to a public telephone. The terminal station control device 10 receives the charging pulse information transmitted from the base station 4 and stores the charging pulse information in the memory 11.
1 and a call channel release instruction unit 102 that forms a call path loop a in the terminal station and releases the wireless call channels 14 and 15.

The operation when a call is made from the public telephone 12 to the subscriber 13 accommodated in the same terminal station will be described below.

After a predetermined time, for example, 3 minutes, from the subscriber 13, the subscriber exchange 1 switches from the charging pulse transmitter 3 to the in-station trunk 16, the call switch 2, the call switch 5 of the base station 4, the wireless call. The first charging pulse is sent to the public telephone 12 via the channel 14 and the call switch 9 of the terminal station 8. When the instruction for collecting the charging pulse information is set from the terminal (not shown) of the base station control device 6 by the maintenance control, the charging pulse measuring unit 61 of the base station control device 6 of the base station 4 determines the pulse width and the pulse width of the charging pulse. Measure the distance,
The measured pulse width and pulse interval of the charging pulse are stored in the memory 7 as charging pulse information, and at the same time, the charging pulse transmitting unit 62 charges the terminal station controller 10 of all terminal stations through a control channel (or monitoring channel) not shown. It is sent to the pulse receiving unit 101. This charging pulse information is stored in the memory 7 of the base station 4 and the memory 11 of the terminal station 8 until the charging pulse information collection instruction is set again by the maintenance control.

Next, when the subscriber exchange 1 sends the billing pulse to the public telephone 12 for the first time and then shifts to the in-station connection state, the base station controller 6 of the base station 4 joins the public telephone 12. In order to notify the subscriber exchange 1 that the person 13 is in a call, a pseudo loop is formed by the pseudo loop circuits 17 and 18 to store the in-station connection information of the terminal station 8 in the memory 7 and the terminal station of the terminal station 8. An in-station connection instruction is sent to the control device 10 via the wireless communication channel 14.

The call channel release instructing unit 102 of the terminal station controller 10 of the terminal station 8 which has received the local station connection instruction from the base station controller 6 of the base station 4 makes a wireless call to the base station controller 6 of the base station 4. The local station connection instruction response is sent back via the channel 14, and the call switch 9 forms a call path loop a to connect the public telephone 12 and the subscriber 13 to form a terminal station call path and release the wireless call channels 14 and 15. To do. After that, the terminal station control device 10 of the terminal station 8 sends a charging pulse from the charging pulse transmitter 19 to the public telephone 12 according to the charging pulse information stored in the memory 11 to start the charging control.

[0012] Note that, once the charging pulse information is once registered in the memories 7 and 11, when the same local call is originated, the public telephone 12 receives the first charging pulse from the subscriber exchange 1. Instead, it is received from the charging pulse transmitter 19. Therefore, the release of the radio communication channel can be accelerated accordingly.

After the call is completed, a termination instruction is transmitted from the terminal station control device 10 to the base station control device 6 via the control channel, and the base station 4 and the subscriber exchange 1 are sequentially restored.

[0014]

As described above, according to the present invention, when a call is made from a public telephone and the in-station connection to the subscriber accommodated in the same terminal station is possible, the base station is transmitted from the subscriber exchange. Measures the pulse width and pulse interval of the charging pulse to notify the terminal station as charging pulse information, forms a call loop for connecting within the terminal station based on the instruction of the base station, and releases the wireless call channel used for the call. Since the terminal station itself is configured to send the billing pulse to the public telephone in accordance with the received billing pulse information, there is an effect that the own station can be connected without using the subscriber exchange and the wireless communication channel can be effectively used.

[Brief description of drawings]

FIG. 1 is a configuration diagram of an embodiment of the present invention.

FIG. 2 is a diagram showing a configuration of a public telephone billing control system in a conventional wireless communication system.

[Explanation of symbols]

 1 Subscriber switch 2, 5, 9 Call switch 3, 19 Charging pulse transmitter 4 Base station 6 Base station controller 7, 11 Memory 8 Terminal station 10 Terminal station controller 12 Public telephone 13 Subscriber 14, 15 Radio call channel 16 Intra-station trunk 17, 18 Pseudo loop circuit 61 Charging pulse measuring unit 62 Charging pulse transmitting unit 101 Charging pulse receiving unit 102 Call channel release instruction unit

Claims (1)

[Claims] 1. A radio communication system comprising a subscriber exchange, a base station connected to the subscriber exchange, and at least one terminal station connected to the base station by a radio line, wherein the terminal station In a public telephone billing control system in a wireless communication system for controlling billing for calls within the local station, which are sent from subscribers of the accommodated public telephone to subscribers of the same terminal station, the subscriber telephone exchange sends the bill to the base station. Means for measuring the pulse width and pulse interval of the charging pulse and storing the charging pulse information in the first memory, and to all terminal stations connected to the base station for reading the charging pulse information stored in the first memory. Means for transmitting via a control channel, said terminal station receiving means for receiving charging pulse information sent from said base station and storing it in a second memory; At the time of call control of a call within the local station, means for forming a call path loop for the call within the local station based on an instruction from the base station, and releasing the corresponding radio call channel between the base station and the terminal station, and releasing the radio call channel Means for transmitting a charging pulse to the public telephone according to the charging pulse information stored in the second memory after being charged, and a public telephone charging control method in a wireless communication system.