JPS6020937B2 - Mobile radio telephone connection method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a mobile radio telephone connection system, and more particularly to a dial connection system in which a mobile station connects sequentially to a plurality of parties in one operation.

As shown in Figure 1, a system that combines general radio communication and mobile radio lines, such as the public car telephone system, divides the service area into multiple radio zones, and each radio zone has its own radio network. The base station 3 is rebuilt and communicates with a plurality of mobile stations 1. Further, the radio base station 3 is connected to a switching center 9 of a general telephone network via a mobile telephone control center 7 and a mobile telephone switching center 8. The mobile telephone exchange 8 has a function of connecting the general telephone network and a mobile radio line, a function of connecting mobile station subscribers to and from their terminals, and processing of fraudulent charges.

In addition, the mobile telephone control station 7 manages the inorganic circuits of each radio base station 3, detects the radio zone where the mobile station 1 that makes and receives calls via the base station 3, and connects the mobile station 1 and the base station. Configure the line between 3. That is, more than half of the control station 7 is comprised of sequence circuits for setting up radio circuits, and also includes a circuit for temporarily storing information about the mobile station 1 and general telephone subscribers 15. The wireless base station 3 is equipped with a base station control device 31 and wireless communication transmitters 32 and 32'.

On the other hand, on the mobile station 1 side, as shown in FIG.
9. Transmitter 1 1, Receiver 12, Sequence circuit 13 for wireless line setting, Memory circuit 14 for storing transmitted/received messages or caller identification number, Input/output conversion circuit 15
, 16, an input section 47, an output section 48, and the like.
As for the mobile station 1, the configuration shown in FIG. 2 is merely an example, and the input/output method differs depending on the information format to be transmitted, so the configuration other than the transceivers 11 and 12 is not constant. In the public car telephone system shown in Figures 1 and 2, a limited number of wireless lines for calls are shared by a large number of mobile stations 1, so one mobile station 1 can handle long wireless lines and fixed lines. It is not allowed to be held for any length of time.

Therefore, once each call is dialed and connected to the other party, the wireless line for communication is immediately disconnected after the call, so it is necessary to set the wireless line for communication for each call. When setting up this radio line, various controls are required at the radio base station 3, mobile telephone control station 7, mobile switching center 8, etc., and these control system equipment is controlled according to the frequency of setting up the radio line. Be resolute. By the way, when making a call from one mobile station 1, there are cases where it is desired to make calls to a plurality of different subscriber subscribers 15 successively or sequentially at intervals of a little time.

Even in such a case, the subscriber must dial for each call, make the call after being connected to the first subscriber, disconnect the wireless line for the call when the call ends, and then dial again for the next call. When a call is made to a second subscriber and the call ends, the wireless line is disconnected, and although the same mobile station 1 should be using the wireless line continuously, it reconfigures the line after each call. Because of this, more equipment is required at the station,
Moreover, there is a lot of time loss for setting, and since a different wireless channel is used each time, adjustment is required. In such cases, reducing the frequency of wireless line setup will help reduce the amount of equipment at the station, making it more economical, and will also help save wasted time for setup.

On the other hand, when making a call while driving a car, dialing is the most difficult and dangerous operation.

With conventional mobile radio telephones, when you want to call multiple subscribers, you have to dial each subscriber individually, and in reality, dialing is not possible without stopping each time. It is. An object of the present invention is to solve these problems, and when a single mobile station makes calls to multiple subscribers and makes calls sequentially, it is possible to make continuous calls without having to set up a line for each call. By using wireless lines, we can reduce station equipment and
To provide a mobile radio telephone connection system capable of reducing the number of stops and stop time of a car by eliminating wasteful line setting time and performing dial operations all at once.

The mobile radio telephone connection system of the present invention is a mobile radio telephone system in which a plurality of mobile radio stations share a limited number of communication radio lines and make calls to subscribers of a public telephone network via a mobile telephone switching center. , the mobile telephone exchange is provided with a buffer memory for storing the telephone numbers of a plurality of incoming subscribers, and when the mobile radio station dials the telephone numbers of the plurality of incoming subscribers at once, the connection control device of the mobile telephone exchange The counterfeiter stores the telephone number of the called subscriber in the buffer memory, and after each call ends, while keeping the wireless line for the call on hold, retrieves the called subscriber's number from the buffer memory one by one and establishes the connection. It is characterized by

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 3 is a block diagram of the mobile radio telephone connection system of the present invention, and FIG. 4 is an explanatory diagram of the dialing procedure in FIG. 3.

In FIG. 3, 1 is a mobile station, 2 is an antenna of a wireless base station, 3 is a wireless base station, 4 is a communication line, 5 is a radio transceiver for controlling the wireless base station, 6 is a control line, and 10 is a communication station. 8 is a mobile telephone switching center (switching network), 22 is a number register, 23 is a buffer memory, and 24 is a mobile telephone switching center connection control device.

The connection control device 24 connects the telephone line from the mobile telephone control station 7 and the telephone exchange line from the telephone exchange 9 through a network, and also processes the batch incoming call numbers from the mobile station 1.

The communication radio transceivers 3-1 to 3-5 of the radio base station 3 are
Corresponding to the plurality of assigned radio communication lines, the corresponding number of communication lines 4-1 to 4-5 are installed, and the same number of communication lines 4-1 to 4-5 are installed. Furthermore, in such mobile radio telephone systems,
It is common to provide one or a small number of control radio lines 21 in addition to the telephone radio line 20, and the radio base station 3
Correspondingly, a control radio transceiver 5 is installed in the mobile telephone exchange, and a control line 6 is installed to the connection control device 24 of the mobile telephone exchange.

Now, when the mobile radio station 1 goes off-hook, a communication radio is established between the mobile silver line station 1 and the connection control device 24 via the control radio line 21, the antenna 2, the control transceiver 5, and the control line 6. Control information for setting up the line 20 is transmitted and received.

That is, the connection control device 24 performs control based on the control information, selects an appropriate line that is not in use at that time from among the plurality of communication radio lines 20, and instructs the mobile radio station to use this line. Command to 1. As a result, if the wireless communication transceiver corresponding to the selected wireless communication line 20 is set to 3-3, the wireless communication line 20 is set between the transceiver 3-3 and the wireless station 1, and the communication line 4-3, it passes through the mobile telephone control center 7 and is connected to the terminals of the switching network of the mobile telephone exchange 8.

The connection control device 24 of the mobile switching center 8 first connects the telephone line 4-3 to the number register 22 via the switching network. Next, the mobile radio station 1 dials the telephone number of the subscriber with whom it wants to talk all at once, and this dial signal is sent to the telephone radio line 20, the transceiver 3-3,
It is entered into the number register 12 via the switching network of the telephone lines 4-3, the mobile telephone control center 7 and the mobile telephone switching center 8.

Since only one telephone number is set in the number register 12, the incoming subscriber numbers that are input continuously are sent to the control device 24 under the control of the connection control device 24.
The data are sequentially stored in the buffer memory 23 via the buffer memory 23. Only the first telephone number is then retrieved, decoded and connected by the connection control device 24 to the terminal of the switching network towards the central office 9 corresponding to that telephone number.
The telephone number is sent to the register 19 of the telephone office 9,
For example, the connection control device 10 of the telephone office 9
Connected to 5-3. A telephone call is made between the mobile radio station 1 and the subscriber 15-3, and when the telephone call ends, the subscriber 15-3 goes on-hook, and the connection control device 24 of the mobile telephone exchange 8 accepts this call. The switching network is operated to separate the telephone exchange 9 and the subscriber 15-3, while keeping the telephone communication line 20, telephone transmitter/receiver 3-3, and telephone line 4-3 on hold. Thereafter, the telephone number of the next called subscriber is retrieved from the second area 23-2 of the buffer memory 23, and the switching network is activated to connect the subscriber 15-2 through the telephone exchange 9. In this way, the called subscriber numbers stored in the buffer memory 23 are sequentially presented and the connection is established. The dialing procedure in the mobile radio station 1 is, for example, as shown in FIG.
Separate 30-3 with separator code 40 and dial in order.
Finally, dial the final code 50. Usually, a mini-touchphone is installed at a car radio station, so 1
digits are done in one operation, and the separator symbol 4 rivers, for example *
(asterisk) You can do this in one operation by pressing each button, including the final sign 5 rivers, or # (digita), for example.

However, since the buttons are small and spaced closely apart, it is easy to operate them erroneously and it is dangerous to operate them while driving, so it is necessary to operate them after the vehicle has stopped. In Figure 4, telephone numbers 30-1, 30-2, and
30-3 is dialed and the "#" symbol is sent at the end.

These dial signals are analyzed by the connection control device 24 of the mobile telephone exchange 8, and 30-1 and 40 are stored in the first area 23-1 of the buffer memory 23, and 30-2 and 40 are stored in the next area 23-2. , 30-3,50 to the next area 23
-3 sequentially. The connection control device 24 has a terminal code 50.
Once identified, the contents of the first area 23-1 are read out, and
Drive the switching network to the terminating subscriber 15
-3 is accommodated in the telephone exchange 9. When the call between the called subscriber 15-3 and the mobile radio station 1 ends, the contents of the next area 23-2 are proposed and the telephone exchange corresponding to the contents of the called subscriber 15-2 is accommodated. station 9
Connect to.

Since the end code 50 is stored in the next area 23-3, the call between subscriber 15-2 and mobile radio station 1 ends, and subscriber 15-1 and mobile radio station 1 are connected and the call is made. rear,
When this call ends, the call line 4 that was on hold until then is
-3. Open the transmitter/receiver 3-3 and disconnect the wireless communication line 20.

Note that an existing memory can be used as the buffer memory 23 shown in FIG. 3, and an existing memory can be used as the number register 2.
It is necessary to newly provide a path for transmitting the subscriber number from to the buffer memory 23 and a program for batch number connection to be executed by the connection control device 24. As explained above, according to the present invention, since a mobile radio station only needs to perform radio line setting control once for a plurality of incoming subscribers, the degree of complicated radio line setting is reduced, and the control radio transceiver ,
The cost of station equipment for control systems such as control lines and connection control devices is reduced, making it possible to lower costs.

Furthermore, mobile radio stations can dial telephone numbers for multiple incoming subscribers in one round.
The number of times the vehicle must be stopped is short, and after that, it is possible to talk to multiple parties in sequence even while driving, making the mobile radio telephone extremely convenient.

[Brief explanation of the drawing]

FIG. 1 is a block diagram of a public automobile telephone system, FIG. 2 is a block diagram of the mobile radio station side of FIG. 1, FIG. 3 is a block diagram of a mobile radio telephone connection system showing an embodiment of the present invention, and FIG. The figure is a diagram showing the dialing procedure on the mobile radio station side of FIG. 3. 1: Mobile radio station, 2: Base station antenna, 3: Radio base station, 3-1 to 3-5: Telephone radio transceiver, 4, 4-1 to
4-5: telephone line, 5: control radio transceiver, 6: control line, 7: mobile telephone control station, 8: mobile telephone exchange, 9: telephone exchange, 10: telephone exchange connection control device, 15-1～
15-3: telephone subscriber, 19: telephone exchange number register, 20: radio line for telephone calls, 21: radio line for control, 2
2: Mobile fin exchange number register, 23: Buffer
Memory, 24: Connection control equipment of the mobile telephone exchange, 30-1 to 30-3: Telephone number of the other subscriber, 40: Delimiter code, 50: End code. Figure 2 Figure 3 Figure 4

Claims (1)

[Claims] 1. In a mobile radio telephone system in which multiple mobile radio stations share a limited number of telephone radio lines and make calls to subscribers of the public telephone network via a mobile telephone exchange, multiple incoming calls to a mobile telephone exchange A buffer memory for storing subscriber telephone numbers is provided, and when the mobile radio station dials the telephone numbers of multiple incoming subscribers at once, the connection control device of the mobile telephone exchange stores the incoming subscriber's telephone numbers in the buffer memory. This mobile radio telephone connection system is characterized in that numbers are stored and after each call is completed, the incoming subscriber numbers are sequentially read out from a buffer memory and connected while the radio line for the call is held.