JP2567240B2 - Wireless telephone method and method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention is suitable for use in a wireless telephone system using a wireless telephone known as a cordless telephone.

When communication devices of the same type using the same frequency are arranged and a method of making a call with the same control procedure is installed at a plurality of places, the communication system becomes a closed system at each place in a normal usage pattern. The present invention relates to a method for allowing a telephone call using a wireless telephone even when the wireless telephone is brought into a communication system at another place for some reason.

[Conventional technology]

In the conventional wireless telephone system, the wireless line control device, wireless connection device, and wireless telephone in the same system all use a common identification code, and only the devices with the same identification code can talk. Therefore, a method is known in which it is prevented from being mistakenly connected to a communication system at another place. In such a method, the identification code and its telephone number are fixedly set in the wireless telephone, and when the wireless telephone and the wireless connection device are connected for communication, the identification code, the own number, and the other party's number are set. The wireless line can be set up only when the transmission and reception are performed and the identification codes of both sides match. Therefore, independent systems are formed around each line control device.

[Problems to be solved by the invention]

As described above, in the conventional wireless telephone system, since each system is independent, there is a drawback that the wireless telephone cannot be used when the wireless telephone moves to another system.

SUMMARY OF THE INVENTION It is an object of the present invention to solve the above problems and provide a wireless telephone method and system capable of setting a wireless line with a wireless telephone even when the wireless telephone moves to another system.

[Means for solving problems]

A radiotelephone method according to a first aspect of the present invention is a radiotelephone method in which an identification code stored in each of the radio connection device and a radiotelephone is collated when a radio line is set between the radiotelephone and the radiotelephone. When the wireless telephone to which the wireless telephone to which the wireless telephone belongs belongs to the line controller that requests the location registration via the wireless connection device, and the system to which the wireless telephone belongs is a system that permits communication, The identification code of the system to which the wireless telephone belongs is stored in the wireless connection device communicating with the wireless telephone, the identification code of its own system is notified to the wireless telephone, and the identification code is stored in the wireless telephone belonging to the other system. When setting a wireless line between the wireless connection device and a wireless telephone belonging to the other system, it is characterized that the two identification codes match each other.

A second invention of the present invention is a device configuration for implementing the method of the first invention, comprising a line control device connected to a fixed network, and one or more wireless connection devices connected to the line control device. Means for equipping each of the wireless connection devices with a wireless telephone connectable by a wireless line, and collating identification codes stored therein when setting a wireless line between the wireless connection device and the wireless telephone. In the wireless telephone system including, the wireless telephone includes means for requesting location registration to the line control device, and the line control device receives a location registration request from a wireless telephone belonging to another system. At this time, if the system to which the wireless telephone belongs permits communication, the identification code of the system to which the wireless telephone belongs is stored in the wireless connection device that communicates with the wireless telephone, and A control means for notifying another code to the wireless telephone, further said radiotelephone includes means for storing an identification code that is notified from the line controller,
A means for transmitting this identification code at the time of connection request, and the means for collating, when the wireless line is set up between the wireless connection device and the wireless telephone belonging to the other system, the two identification codes are It is characterized in that it includes a means for checking that there is a match.

[Work]

In the wireless telephone system of the present invention, a wireless telephone (hereinafter referred to as “Roma wireless telephone”) that has moved from another system is manually identified by its own identification to the line control apparatus via the nearest wireless connection apparatus. Notify the code and telephone number. The line control device selects the wireless connection device that has the highest reception strength of the signal from the Roman radio telephone, notifies the identification code and the telephone number of the Roman radio telephone, and further identifies the identification code of its own system to the Roman radio telephone. To notify. The Roman radiotelephone stores the notified identification code. After that, when a wireless line is set up between the wireless telephone and the Roman wireless telephone, the identification codes of both systems are used to identify each other. As a result, the subordinate radio telephone and the Roman radio telephone can be treated substantially equivalently and can be connected.

〔Example〕

FIG. 1 shows a block diagram of a wireless telephone device according to an embodiment of the present invention.

The wireless telephones 11-1 to 11-j are accommodated in the first system and can be connected to one of the wireless connection devices 12-1 to 12-n via a wireless line. The wireless connection devices 12-1 to 12-n are connected to the line control device 13 by a wired line. Wireless telephone 21-
l to 21-k are accommodated in the second system, and the wireless connection device 22-l
It is possible to connect to one of ~ 22-m via a wireless line. The wireless connection devices 22-1 to 22-m are connected to the line control device 23 by a wired line. Line controllers 13 and 23 are fixed networks
Connected to 30. The solid state network 30 is a public telecommunications network or a premises network.

Although only two systems are shown here, a larger number of systems can be connected to the fixed network 30.

Explaining an example of the form of use, the fixed network 30 is a premises telephone network of a business office in one building, and the line control devices 13 and 23 are provided one on each floor of this building,
The wireless connection devices 12-1 to 12-n and 22-1 to 22-m are provided for each department on the floor.

The wireless connection devices 12-l to 12-n, 22-l to 22-m and the wireless telephones 11-l to 11-j and 21-l to 21-k respectively store them when setting a wireless line. Means are provided to verify the identifying code. Wireless telephone 11-l-
11-j and 21-l to 21-k are provided with means for requesting the location registration from the line control device. The line control devices 12 and 13 are
When a location registration request is received from a wireless telephone belonging to another system, if the system to which the wireless telephone belongs permits communication, a wireless connection for communicating the identification code of that system with the wireless telephone A control means for storing the information in the device and notifying the wireless telephone of the identification code of its own system is provided. The radio telephones 11-1 to 11-j and 21-1 to 21-k further include means for storing the identification code notified from the line control device and means for transmitting the identification code when a connection request is made. The means for collating includes means for collating that the two identification codes are the same when setting the wireless line between the wireless telephone belonging to the other system and the wireless connection device.

Wireless telephones 11-l to 11-j and wireless connection device 12-l
.. 12-n mutually transmit and receive the identification code peculiar to the first system when establishing a wireless line with each other, and confirm that they belong to the same system. The same applies to the setting of the wireless line between the wireless telephones 12-1 to 21-j and the wireless connection devices 22-1 to 22-m.

Further, even when the wireless telephone moves to another system, the apparatus of this embodiment can set a wireless line with the wireless connection line of the system to which the wireless telephone moves.

FIG. 2 shows a position registration control sequence when the wireless telephone moves to another system.

As an example, a case where the first type wireless telephone 11-j moves to the second type and becomes a Roman wireless telephone will be described.

When the user presses the location registration button of the wireless telephone 11-j, the wireless telephone 11-j manually registers the location including the identification code of the first system, which is its own system, and its own telephone number. Send a signal. Wireless connection device 22-l-22-m
Upon receipt of this manual position registration signal, adds the reception level information to this signal and sends it to the line control device 23.

The line control device 23 stores the identification code of another system permitted to communicate in this system. For example, when another company is contained in one building, communication is not permitted for the systems of other companies. The line control device 23 checks whether or not the received identification code from the wireless telephone 11-j matches the code stored in advance. If they match, the wireless connection device that has received the signal from the same wireless telephone 11-j at the highest level within a fixed time is selected and the Roman line is allocated. In the following, it is assumed that the wireless connection device 22-1 receives the signal at the highest level.

When the assignment of the Roman line is completed, the line controller
23 sends a manual position registration completion signal including the identification code of this system, the identification code of the wireless telephone 11-j, and the telephone number to the selected wireless connection device 22-1. The wireless connection device 22-l stores the identification code and the telephone number of the wireless telephone 11-j included in the manual position registration completion signal, and adds the own connection device number to this signal to notify the wireless telephone 11-j. Send out.

Upon receiving the manual position registration signal from the wireless telephone 11-j, the wireless telephone 11-j stores the identification code of this system and the number of the wireless connection device 22-l that can be used by itself, and sends a completion signal by a tone signal. Wireless connection device to send to user
A line registration confirmation signal including the identification code of the system to which the user originally belongs, the connection device number notified by the manual position registration completion signal, the identification code of the destination system, and the telephone code is sent via 22-1. It is sent to the control device 23.

When the line control device 23 receives the position registration completion signal from the wireless telephone 11-j, the extension number of the Roman wireless telephone assigned to the wireless telephone 11-j, the wireless telephone number, the identification code of the original system, and the connection device. Remember the number.

With the above location registration, the line control device 23 and the wireless connection device 22-1 store the identification code of the system to which the wireless telephone 12-j belongs and the telephone number thereof. Wireless phone
12-j stores the identification code of the destination system and the nearest connected device number. After that, when the wireless telephone 11-j and the wireless connection device 22-l set up a wireless line, the wireless telephone 11-j determines the identification code of the system to which it belongs, the identification code of the system of the moving destination, and the connection of the moving destination. The wireless connection device 22-l sends out the device number and its own telephone number, and the wireless connection device 22-l identifies the system to which it belongs, the identification code of the system to which the wireless telephone 11-j belongs, its own connected device number and the wireless telephone 11-j. Send the telephone number of. As a result, the other parties can be collated with each other and a wireless line can be established.

Although all the wireless telephones in the same system can be used in other systems, two types, that is, a movable wireless telephone and a non-movable wireless telephone, may be provided in the same system.

FIG. 3 shows wireless telephones 11-1 to 11-j and 21-l to 21-k.
It is a block configuration diagram showing an example.

The wireless telephones 11-1 to 11-j and 21-1 to 21-k are provided with two antennas 31 for transmission and reception, and these antennas 31 are connected to a wireless transceiver 32. Radio transceiver 32
Is connected to the receiver 33, the transmitter 34, and the controller 35. A position registration button 36 is connected to the control unit 35. Further, the destination code memory 37, the identification code memory 38, the telephone number memory 39, and the connection device number memory 40 are connected to the control unit 35.

The destination code memory 37 is composed of a random access memory, and temporarily stores the identification code of the destination system. The identification code memory 38 is a read-only memory and stores the identification code of the system to which it belongs. The telephone number memory 39 is a read-only memory and stores its own telephone number. The connection device number memory 40 is composed of a random access memory and stores the number of the nearest wireless connection device that can be used by itself.

FIG. 4 shows wireless connection devices 12-l to 12-n, 22-l to 22-.
It is a block diagram showing an example of m.

The voice line of the line control device 13 or 23 is connected to a wireless transceiver 43 via a line relay 41 for opening and closing the line and a two-wire / four-wire conversion circuit 42. The wireless transceiver 43 has two antennas 44 for transmitting and receiving. The control circuit of the line control device 13 or 23 is connected to the control unit 46 via the control signal transceiver 45. However, in FIG. 4, the voice line and the control line are shown by the same line. The control unit 46 is a line relay 41
And a wireless transceiver 43. Further, a telephone number memory 47, a connection device number memory 48 and an identification code memory 49 are connected to the control unit 46.

Among the outputs of the receiving unit of the wireless transceiver 43, the audio signal is sent to the wired line via the two-wire / four-wire conversion circuit 42 and the line relay 41, and the data signal is sent to the control unit 46. Voice signal sent to the two-wire / four-wire conversion circuit 42 and control unit
The data signal from 46 is input to the transmitter of the wireless transceiver 43.

The telephone number memory 47 is composed of a random access memory, and temporarily stores the identification code and the telephone number of the wireless telephone during the call connection process. The connected device number memory 48 is composed of a read-only memory and stores its own connected device number. The identification code memory is composed of a read-only memory and stores the identification code of the system to which it belongs.

FIG. 5 is a block diagram showing an example of the line control devices 13 and 23.

The matrix switch 52 is a multiple line interface
It is connected to the fixed network 30 via 51, and is connected to each of the wireless connection devices 12-1 to 12-n or 22-1 to 22-m via the wireless connection device interface 53. Matrix switch
A dial signal transmission trunk 54 is further connected to 52. The matrix switch 52, the office line interface 51, the wireless connection device interface 53, and the dial signal transmission trunk 54 are connected to the control unit 55. The control unit 55 is further connected to a Rome permission table 56, a position information management table 57, and a Rome management table 58.

The matrix switch 52 includes a line connected to the fixed network 30 and wireless connection devices 12-l-12-n or 22-l-22-m.
The circuit is exchanged with. The office line interface 51 detects an incoming signal (16 Hz) with the fixed network 30 and opens and closes a DC loop. The wireless connection device interface 53 exchanges control signals with the wireless connection devices 12-1 to 12-n or 22-1 to 22-m. Dial signal transmission trunk 54
Sends a DTMF format dial signal to the fixed network 30.

The Roman permission table 56 stores the identification code of the system of the other party who is permitted to register as a Roman radio telephone. The location information management table 57 stores the wireless connection device with which each of the wireless telephones 11-1 to 11-j or 21-l to 21-k communicates. The Rome management table 58 is an identification code of a registered Roman radio telephone and its telephone number,
The Rome line assigned to this Rome radio telephone is stored.

〔The invention's effect〕

As described above, in the wireless telephone system of the present invention, even if the communication system is independent,
If it is a wireless telephone of a system that has been registered in advance, it is possible to make a call even within the system of the moving destination. Therefore, the service area can be expanded without expanding the area of each system.

[Brief description of drawings]

FIG. 1 is a block diagram of a wireless telephone device according to an embodiment of the present invention. FIG. 2 is a diagram showing a position registration control sequence when the wireless telephone moves to another system. FIG. 3 is a block diagram showing an example of a wireless telephone. FIG. 4 is a block diagram showing an example of a wireless connection device. FIG. 5 is a block diagram showing an example of the line controller. 11-l to 11-j, 21-l to 21-k ... Wireless telephone, 12-
l-12-n, 22-l-22-m ... Wireless connection device, 13, 23
...... Line control device, 30 ...... Fixed network, 31 ...... Antenna, 32
...... Wireless transceiver, 33 …… Handset, 34 …… Transmitter, 35…
… Control unit, 35… Position registration button, 37… Destination code memory, 38… Identification code memory, 39… Telephone number memory, 40… Connected device number memory, 41… Line relay,
42 …… 2-wire to 4-wire conversion circuit, 43 …… Wireless transceiver, 44 ……
Antenna, 45 ... Control signal transceiver, 46 ... Control section, 47
...... Phone number memory, 48 ...... Connected device number memory, 49
...... Identification code memory, 51 ...... Local line interface, 52 ...
... Matrix switch, 53 ... Wireless connection device interface, 54 ... Dial signal sending trunk, 55 ... Control unit, 56 ... Roman permission table, 57 ... Location information management table, 58 ... Roman management table.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor, Yoshitoshi Murata 1-2356 Takeshi, Yokosuka, NTT Communication Network Co., Ltd. 2nd Research Laboratory (72) Inventor Noriaki Nagashima 5-33, Shiba, Minato-ku, Tokyo No. 1 within NEC Corporation (72) Inventor Toshihiko Shibata 4-3-1 Tsunashima Higashi, Kohoku-ku, Yokohama Matsushita Communication Industrial Co., Ltd. (72) Mitsuo Sato 4--3 Tsunashima Higashi, Kohoku-ku, Yokohama No. 1 in Matsushita Communication Industry Co., Ltd. (56) Reference JP-A-61-177039 (JP, A) JP-A-63-160434 (JP, A)

Claims (2)

(57) [Claims] 1. A wireless telephone method for collating identification codes stored in a wireless line when setting a wireless line between the wireless connection device and the wireless telephone, wherein the wireless connection device is connected to a wireless telephone belonging to another system. A request for location registration is made to the line control device via the line control device, and the line control device that has received the request communicates with the wireless telephone when the system to which the wireless telephone belongs is a system that permits communication. Stores the identification code of the system to which the wireless telephone belongs, notifies the wireless telephone of the identification code of its own system, and stores the identification code in the wireless telephone belonging to the other system, and the wireless connection device and the other The wireless telephone method is characterized by verifying that the two identification codes match when setting up a wireless line with a wireless telephone belonging to the system. 2. A line control device connected to a fixed network, one or more wireless connection devices connected to the line control device, and a wireless telephone connectable to each of the wireless connection devices by a wireless line. In the wireless telephone system provided with means for collating the identification codes stored in the wireless connection device and the wireless telephone when setting the wireless line, the wireless telephone may be the line control device. In response to a location registration request from a wireless telephone belonging to another system, the line control means is a system to which the system to which the wireless telephone belongs permits communication. If so, the system is provided with control means for storing the identification code of the system in the wireless connection device communicating with the wireless telephone and notifying the wireless telephone of the identification code of the own system. The machine includes means for storing the identification code notified from the line control device, and means for transmitting the identification code at the time of connection request, and the means for collating belongs to the wireless connection device and the other system. A wireless telephone system characterized by including a means for verifying that the two identification codes match when setting up a wireless line with the wireless telephone.