JPH06311554A - Radiotelephony communications system - Google Patents

Abstract

PURPOSE:To enable line connection between a portable telephone set and a line connection device to be performed even when no position registration operation is performed by a user carrying the portable telephone set after roaming out from a radio zone where the user is located at present. CONSTITUTION:A line controller 1 reads out the arranging information of a fixed machine 2-5 which manages the radio zone where the portable telephone set 3 is located, for example, (01, 01) from the position information of the portable telephone set 3 registered on a storage device 12 when it is desired to perform the line connection with the portable telephone set 3 of destination. The controller calls the portable telephone set 3 by sending an incoming call signal sequentially to the fixed machines 2-1 to 2-9 which manage the radio zones neighboring to the fixed machine 2-5 centering about it based on the information. Therefore, since the incoming call signal is transmitted by radio from the fixed machine 2 which manages the radio zone of a moving destination even when the portable telephone set 3 is moved separately from a registered radio zone, it is possible to perform the line connection by radio to the portable telephone set 3 even without performing a registration operation by the user after moving.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a radiotelephone communication system for providing a telephone service to a mobile phone, and more particularly to a radio connection with a mobile phone.

[0002]

2. Description of the Related Art Conventionally, a radio telephone communication system of this type is
A plurality of fixed devices arranged at appropriate intervals are connected to the line connection device by wire, and the fixed device and the mobile phone are wirelessly connected to each other. Calls are being made between line networks. Therefore, the range in which one fixed device can provide wireless service is defined as one wireless zone, and it is checked in which wireless zone the mobile phone is currently located, and the fixed device that manages the wireless zone in which the mobile phone exists is selected. A communication path is set between the mobile phone and the line control device via the communication line. Therefore, position information indicating the position of the mobile phone is registered in the internal table of the line control device, and position information indicating the position of the mobile phone is also registered in the internal table on the mobile phone side. . For this purpose, a user who has a mobile phone must perform a location registration operation, and this location registration will be described below.

A user who has a mobile phone operates the mobile phone to transmit a position signal indicating the position from the mobile phone. A plurality of fixed devices near the mobile phone receive the position signal and send the reception level to the line control device. The line control device identifies the fixed device of the receiving source in the order of the higher level, and registers the position of this fixed device in the internal table. For example, the position of the two fixed devices that has notified the highest level and the next level. Shall be registered. On the other hand, when the mobile phone side transmits the above position registration signal, it receives the response signal from the fixed device that has received this position registration signal, and the position of the upper two persons of the fixed devices that have transmitted the response signals in the order of higher level To the internal table.

Therefore, the line control device executes the call processing for the portable telephone based on the position information registered in the internal table. Therefore, when a user who has a mobile phone leaves the wireless zone in which he / she is currently located and there is an incoming call to the mobile phone before performing a location registration operation in another wireless zone, the line control device causes the line control device to According to the position information of the mobile phone, an incoming signal is wirelessly transmitted from a fixed device that controls the wireless zone in which the mobile phone is supposed to be located. Therefore, when the mobile phone does not exist in the wireless zone, the incoming signal is sent to the mobile phone. The wireless connection may not be possible. To avoid such a problem, it is necessary to always perform the location registration operation immediately after the user holding the mobile phone leaves the wireless zone in which he / she is currently located. It is difficult to determine whether or not the user has moved, and in the end, the probability that the wireless connection will fail until the position registration signal comes from the line control device becomes very high.

[0005]

In the conventional radiotelephone communication system, when the user holding the mobile phone has left the radio zone in which he / she is currently located and has not yet performed a location registration operation, the line connection device is used to Even if a wireless connection is attempted based on the position information of the mobile phone before the movement, there is a drawback that a transmission signal does not reach the mobile phone and the wireless connection may not be possible. To avoid this drawback, the user with the mobile phone may perform the location registration operation immediately after leaving the wireless zone in which he / she is currently located, but the user often does not know the timing of leaving the wireless zone. For,
There is a problem that the above-mentioned drawbacks are likely to occur.

Therefore, the present invention eliminates the above-mentioned drawbacks, and makes high wireless connection with the mobile phone even if the user holding the mobile phone has left the wireless zone in which he / she is currently located and has not performed the position registration operation. It is an object to provide a radiotelephone communication system that can be possible with probability.

[0007]

The present invention has a line control device in which a plurality of fixed devices for controlling a plurality of wireless zones provided at appropriate intervals in a one-to-one correspondence are connected by wire. From the fixed mobile device to the fixed device that controls the wireless zone in which the mobile phone of the destination is located, and wirelessly transmits the incoming signal from the fixed device to the mobile phone. In the wireless telephone communication system having the function of registering the position information of the mobile phone, the mobile phone sends a position registration signal to the line control device via the nearest fixed device while making line connection. , When transmitting an incoming signal to the destination mobile phone, the wireless zone in which the mobile phone is located is controlled from the registered location information of the destination mobile phone. Specifying means for specifying a device, selecting means for selecting a fixed device that controls a wireless zone adjacent to a wireless zone controlled by the fixed device specified by the specifying means, and specifying and selected by the specifying means and the selecting means In addition, the line control device is provided with line connection means for sequentially transmitting an incoming signal to each fixed device and wirelessly transmitting the incoming signal to the destination wireless telephone in order from these fixed devices.

[0008]

In the wireless telephone communication system of the present invention, when the specifying means of the line control device sends an incoming signal to the destination mobile telephone, the mobile telephone is located from the registered location information of the destination mobile telephone. Identify the fixed device that controls the wireless zone. The selecting means selects a fixed device which controls a wireless zone adjacent to a wireless zone which is controlled by the fixed device specified by the specifying means. The line connecting means sequentially outputs the incoming signal to each of the fixed devices specified and selected by the specifying means and the selecting means, and causes the fixed devices to sequentially wirelessly transmit the incoming signal to the wireless telephone of the destination. This increases the probability that an incoming signal will be transmitted from the nearest fixed device in which the mobile phone is located, even if the destination mobile phone does not exist in the position registered in the line control device. It is possible to enable wireless connection to a mobile phone without the user performing a location registration operation.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a block diagram showing an embodiment of a wireless telephone communication system of the present invention. 1 is a line controller, 2-
1 to 2-9 are fixing devices arranged in a matrix, 3
Is a mobile phone, 4 is a maintenance console connected to the line control device 1 by a cable 5, 5 is a cable, and 6 is a fixed device 2.
It is a cable that connects -1 to 2-9 and the switch unit 13 in the line control device 1. The line control device 1 includes a CPU 11 that controls the inside of the device, a storage device 12 that stores various data necessary for the CPU 11 to operate, and a fixed device 2.
The switch unit 13 has a switch unit 13 that connects and disconnects each other, and these units are connected by a bus line 14.

Next, the operation of this embodiment will be described. First, the operator operates the maintenance console 4 through the fixing device 2-1.
2 to 9 of the fixing device information as shown in FIG.
To notify the CPU 11 of the line control device 1 via. CP
When the U11 receives the fixed device information as shown in FIG. 2, the U11 stores the arrangement information indicating the arrangement of the fixed devices from the received fixed information as a table in the storage device 12 as shown in FIG. This FIG. 3 shows the fixing devices 2-1 to 2-9.
For each identification number (ID) 0000 to 0008, the position of each fixed device is shown in a matrix form.

For example, when the user of the mobile phone 3 in the wireless zone controlled by the fixed device 2-1 performs a position registration operation,
A position registration signal is transmitted from this mobile phone 3. This position registration signal is sent to, for example, the fixed devices 2-1, 2-2, 2-4.
Is received, the reception level is set to the CP of the line control device 1.
Notify U11 through the switch unit 13. CPU11
Registers the ID number of the fixed device having the highest reception level in the storage device 12 in correspondence with the ID number of the mobile phone as shown in FIG. In this case, since the fixed device 2-1 has the highest reception level, the ID number 0011 of the mobile phone 3 is set.
On the other hand, the ID number 0000 of the fixed device 2-1 is registered in the storage device 12 as shown in FIG. On the other hand, when the fixed devices 2-1, 2-2, 2-3 receive the position registration signal from the mobile phone 3, they transmit a response signal to the mobile phone 3, so that the fixed level with the highest reception level also on the mobile phone 3 side. The ID number of the device is registered in the internal table. The line control device 1 updates the internal position information table (see FIG. 4) every time the above-described position registration operation of the mobile phone 3 is performed.

Next, from the wireless zone under the control of the fixed device 2-1, the user who has the above-mentioned mobile phone 3 starts from FIG.
It is assumed that the fixed device 2-5 has moved to the wireless zone under its control and has not yet performed the location registration operation as shown in FIG. In such a case, when an incoming call to the mobile phone 3 (ID 0011) occurs in the line control device 1, the CPU 11 of the line control device 1 sets the position information of the mobile phone 3 in the storage device 12. It reads from the position information table shown in FIG. 4, but in this case, the fixed device 00
It can be seen that the mobile phone 3 is located in the wireless zone 00. After the CPU 11 selects a plurality of fixed devices that control a wireless zone adjacent to the wireless zone (ID 0000) where the read mobile phone 3 should be located, the CPU 11 sends incoming signals to these fixed devices in sequence. As shown in FIG. 3, the fixed signal is sent out via the cable 6 and an incoming signal is wirelessly transmitted to the mobile phone 3 from each of the fixed devices. In the example of FIG. 6, first, ID 0000, ID 0001, ID 00
Incoming signals are sent from the line control device 1 through the cable 6 to the fixed devices 03 and ID 0004 in this order. Therefore, to the mobile phone 3, the incoming signal is wirelessly transmitted from the fixed device 2-1, the incoming signal is wirelessly transmitted from the fixed device 2-2, and the incoming signal is then wirelessly transmitted from the fixed device 2-4. Then, the incoming signal is wirelessly transmitted from the fixed device 2-5. After all, the mobile phone 3 is fixed to the fixed device 2-5.
The mobile phone 3 is connected to the line control device 1 via the fixed device 2-5 by receiving the incoming signal from the device and returning the response signal to the fixed device 2-5. Become.

FIG. 7 shows the CPU 1 of the line control device 1 described above.
1 is a flowchart showing a process when selecting a plurality of fixed devices in the vicinity of a wireless zone in which a mobile phone to be connected to a line is located and sequentially transmitting incoming signals from these fixed devices. First, in step 701, the CPU 11 reads the identification number of the fixed device as the position information of the mobile phone from the table shown in FIG. 4 which is set in the storage device 12 using the identification number of the mobile phone to be connected as a key, and this The arrangement information of the fixed device having the read identification number is read from the table shown in FIG. For example, the identification number of the mobile phone 3 is 001
When it is 0, the identification number 0004 of the fixed device is read from the table of FIG. 4 as its position information, and therefore the arrangement information of this 0004 is read from the table shown in FIG. In this example, the arrangement information is row number 01 and column number 0.
It becomes 1. Next, in step 702, the CPU 11 substitutes the position information obtained by subtracting 1 from the column number B and the row number A of the read layout information into b and a, and then proceeds to step 703 to indicate this (b, a). It is determined whether or not there is a fixed device at the position of the placement information to be provided.
If there is, the process proceeds to step 704, and if there is, an incoming signal is sent to the corresponding fixed device 2, the fixed device 2 wirelessly transmits the incoming signal to the mobile phone 3, and then the process proceeds to step 705.

In step 705, it is determined whether or not a is the column number A + 1 of the position information or more. If not, the process proceeds to step 706, increments this a by +1 and then returns to step 703. If the a is greater than or equal to the column number A + 1 in step 705, step 7
After proceeding to 08, the column number A-1 of the position information is substituted for a, and then proceeds to step 709. C at step 709
The PU 11 determines whether or not b is greater than or equal to the line number B + 1 of the position information, and if not, increments b by 1 in step 707, returns to step 703, and in step 709, b is the position information. Line number B +
If it is determined that the number is 1 or more, the process ends.

As a result, when the arrangement information of the fixed device which controls the wireless zone where the mobile phone 3 is supposed to be located is, for example, (01, 01), the above flow chart is executed. , The identification number of the fixed device 2 from the line control device 1, 0000, 0001,000
2,0003,0004,0005,0006,000,000
Incoming signals are transmitted through the cable 6 in the order of 7,0008, and the incoming signals are wirelessly transmitted from the fixed devices 2 to the mobile phone 3 in this order. That is, in this example, the fixed device 2 that manages the wireless zone in which the mobile phone 3 should be located and the fixed devices 2 that manage eight wireless zones adjacent to this wireless zone are connected to the mobile phone. Since the incoming signal is wirelessly transmitted to the mobile phone 3, even if the mobile phone 3 is moving from the wireless zone 0004 to another wireless zone, the incoming signal from the line control device 1 is transmitted to any one of the fixed devices 2. After receiving more, the wireless connection is established.

According to the present embodiment, when the line control device 1 wants to receive an incoming call to the destination mobile phone 3, the line zone control device 1 determines the wireless zone in which the mobile phone exists from the registered location information of the destination mobile phone 3. After reading the arrangement information of the fixed device 2 that is in charge of the jurisdiction and selecting the fixed device 2 that is in charge of a plurality of wireless zones adjacent to the wireless zone with this fixed device 2 as the center, the mobile phone is sequentially operated from these fixed devices 2. Since the incoming signal is wirelessly transmitted to the mobile phone 3, the probability that the mobile phone 3 can be wirelessly connected to the mobile phone 3 even if the mobile phone 3 is moving from the registered wireless zone. You can Therefore, even if the user holding the mobile phone 3 does not immediately perform the position registration operation after moving to another wireless zone, the mobile phone 3 can be wirelessly connected to improve the wireless phone service. be able to.

It should be noted that the incoming signal is sequentially sent to the fixed device 2 which controls the wireless zone where the destination mobile phone 3 is located and the fixed device 2 which controls the wireless zone adjacent to this wireless zone. When sending from 1, the fixed device 2 which controls the wireless zone corresponding to the registered position information of the mobile phone 3 is firstly sent to the mobile phone 3 as a first rank, and then the mobile phone 3 is adjacent. If the method of sequentially transmitting the incoming signal to the fixed device 2 that controls the wireless zone is adopted, since the probability that the mobile phone 3 is normally registered is high, the wireless connection to the mobile phone 3 is established. It can be done quickly.

[0018]

As described above, according to the wireless telephone communication system of the present invention, even when the user holding the portable telephone leaves the wireless zone in which he / she is currently located and has not performed the location registration operation, The wireless connection with can be made possible with high probability.

[Brief description of drawings]

FIG. 1 is a block diagram showing an embodiment of a wireless telephone communication system of the present invention.

FIG. 2 is a diagram showing an example of fixed device information set in the line control device from the maintenance console shown in FIG.

FIG. 3 is a diagram showing an example of arrangement information of fixed devices registered in the storage device shown in FIG.

FIG. 4 is a diagram showing an example of location information of mobile phones registered in the storage device shown in FIG.

FIG. 5 is a diagram showing a state where the mobile phone shown in FIG. 1 has moved between wireless zones.

6 is a diagram showing a timing when an incoming signal is transmitted from the line control device shown in FIG. 1 to a plurality of fixed devices.

7 is a flowchart showing an operation of the CPU shown in FIG. 1 when controlling an incoming signal transmission.

[Explanation of symbols]

1 ... Line control device 2-1 to 2-9 ...
Fixed device 3 ... Mobile phone 4 ... Maintenance console 5, 6 ... Cable 11 ... CPU 12 ... Storage device 13 ... Exchange switch unit 14 ... Data bus

Claims (1)

[Claims] 1. A line control device having a plurality of fixed devices wiredly managing a plurality of wireless zones provided at appropriate intervals in a one-to-one correspondence, and the destination mobile phone is located from the line control device. By transmitting an incoming signal to a fixed device that controls the wireless zone, and wirelessly transmitting an incoming signal from the fixed device to the mobile phone, thereby establishing a line connection between the mobile phone and the fixed device, and The mobile phone sends a position registration signal to the line control device via the nearest fixed device so that the line control device receives a call to the destination mobile phone in the wireless telephone communication system having a function of registering the position information of the mobile phone. When transmitting a signal, a specifying unit that specifies a fixed device that controls the wireless zone in which this mobile phone is located, from the registered position information of this destination mobile phone And selecting means for selecting a fixed device which controls a wireless zone adjacent to a wireless zone controlled by the fixed device specified by the specifying means, and for each fixed device specified and selected by the specifying means and the selecting means A radio telephone communication system, wherein the line control device is provided with line connection means for sequentially transmitting the incoming signals to these destination wireless telephones in sequence from these fixed devices.