JPH0833030A - Radio telephone system - Google Patents

Abstract

PURPOSE:To obtain a radio telephon system for preventing traffic inside a radio zone from being uselessly congested without loading the battery of a mobile station by cutting off the radio of the mobile station when moving the mobile station inside the radio zone at medium or high speed. CONSTITUTION:A mobile station 1 is provided with an electric field managing part 21 for measuring electric field intensity and transmitting the electric field intensity to a base station 12, and the base station 12 is provided with a timer control part 22 for inquiring the electric field intensity to the mobile station 1 at every prescribed time, position registration control managing part 23 for storing the history of electric field intensity, and communication judging part 24 for comparing the electric field intensity transmitted from the mobile station 1 with the history of electric field intensity and cutting off the radio of the mobile station 1 when the electric field intensity is extremely weak and the moving speed of the mobile station 1 is medium or high.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wireless telephone device having a base station.

[0002]

2. Description of the Related Art In recent years, wireless telephone devices have rapidly spread, and along with this, the development of wireless telephone devices has been actively carried out. As a communication method between a base station and a mobile station, a multi-zone method is adopted in which the base stations are distributed and arranged to increase the number of mobile stations accommodated by repeatedly using the same frequency band. In this method, since the service area is divided into relatively narrow zones and communication is performed with a low-power radio wave, transmission power can be reduced. Also, since the same frequency is repeatedly used, it is possible to accommodate a large number of mobile stations.

A conventional radio telephone device will be described below. FIG. 5 is a block diagram showing the configuration of a conventional wireless telephone device. In FIG. 5, 1 is a mobile station, 2 is a transmitter for outputting voice, 3 is a receiver for inputting voice, 4 is an LED and LCD for displaying information such as dial number and date.
And the like, 5 is a voice interface that adjusts the gain of input and output of a voice signal, 6 is a first control unit that controls voice and control data between each component, and 7 is registered A base station ID storage unit that stores an identification code of the base station (hereinafter referred to as an ID), a mobile station ID storage unit 8 that stores the ID of the mobile station 1, a dial input from the outside or an on-hook, An operation unit including input means such as off-hook, 10 is a radio interface between base stations for converting voice and control data in the mobile station 1 and radio signals, 11 is an antenna for transmitting and receiving radio signals, and 12 is a mobile unit. A base station communicating with the station 1, 13 is an antenna for transmitting and receiving radio signals, 14 is a mobile station radio interface for converting voice and control data in the base station 12 and radio signals, 15
Is a second control unit for controlling voice and control data in the base station 12, and 16 is a mobile station I storing the ID of the mobile station 1.
D storage unit, 17 is a base station ID storage unit that stores the ID of the base station 12, and 18 is an ID of a mobile station in the wireless zone.
Is a normal telephone line, and 20 is a communication unit for transmitting and receiving voice and control data in the base station 12 to the telephone line 19.

The operation of the radiotelephone device configured as described above will be described below. First, mobile station 1
Will be described. When the operation unit 9 is on-hook, the first control unit 6 converts the voice and the base station ID stored in the base station ID storage unit 7 into a radio signal by the inter-base station radio interface 10 and transmits the radio signal via the antenna 11. . The base station 12 receives this radio signal via the antenna 13. The received wireless signal is converted into voice and base station ID by the mobile station wireless interface 14. The second control unit 15 collates the base station ID with the base station ID stored in the base station ID storage unit 17, and if they match, connects the telephone line 19 and the mobile station 1 via the communication unit 20. .

Next, the case where the mobile station 1 receives a call will be described. When the mobile station 1 is called from the telephone line 19, the second control unit 15 causes the location registration management unit 18 to call the mobile station 1.
Of the mobile station 1 is found in the location registration management unit 18, it is determined that the mobile station 1 is located in the wireless zone, and the voice and the mobile station ID are stored in the inter-mobile station wireless interface 14. To a wireless signal via. This radio signal is transmitted via the antenna 13. The mobile station 1 receives this radio signal via the antenna 11, and converts it into voice and mobile station ID by the inter-base station radio interface 10.
The first control unit 6 collates the mobile station ID with the mobile station ID stored in the mobile station ID storage unit 8, and outputs a voice to the transmitter 2 when they match, and the telephone line 19 and the mobile station. Connect with 1.

[0006]

However, in the above-mentioned conventional radiotelephone device, when the position-registered mobile station moves from the radio zone formed by the base station to the radio zone formed by another base station, Since the wireless zone to be formed is extremely small, there is no problem in the case of low speed such as walking, but while moving by a car or the like, in the case of high speed movement, a plurality of wireless zones move in a short time. As a result, it is necessary to re-register the location with the base station every time communication is interrupted or the wireless zone is changed, which imposes a heavy burden on the battery of the mobile station. In addition, since the communication between the mobile station and the base station occurs frequently, there is a problem that traffic is confused.

The present invention solves the above-mentioned conventional problems. When a mobile station moves in a wireless zone at a high speed in the middle of a wireless zone, the radio of the mobile station is cut off and the battery of the mobile station is not burdened. An object of the present invention is to provide a wireless telephone device that does not unnecessarily congest traffic in a wireless zone.

[0008]

In order to achieve this object, a radiotelephone apparatus according to claim 1 of the present invention is a mobile station which performs radio communication with a base station having at least one radio zone. A wireless telephone device having a station,
The mobile station has an electric field management unit that measures the electric field strength of the electromagnetic wave emitted by the base station and transmits the electric field strength to the base station, and the base station has a timer control unit that inquires the electric field strength from the mobile station at predetermined intervals. , The location registration control management unit that stores the history of the electric field strength of the mobile station, and the electric field strength transmitted from the mobile station are compared with the history of the electric field strength stored in the location registration control management unit When the mobile station is large and the moving speed of the mobile station calculated from the electric field strength transmitted from the mobile station is medium or high, the communication judging section disconnects the radio of the mobile station.

[0009]

With this configuration, the electric field management unit measures the electric field intensity of the electromagnetic wave emitted by the base station and transmits the electric field intensity to the base station, and the timer control unit inquires the mobile station of the electric field intensity at every predetermined time and registers the position. The control management unit stores the history of the electric field strength of the mobile station, and the communication determination unit compares the electric field strength transmitted from the mobile station with the history of the electric field strength stored in the location registration control management unit and transmits from the mobile station. If the electric field strength of the mobile station is extremely weak and the mobile speed of the mobile station calculated from the electric field strength transmitted from the mobile station is medium or high, the radio of the mobile station can be disconnected. Battery life can be extended and unnecessary disruption of traffic in the wireless zone can be prevented.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment will be described below with reference to the drawings.

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

In FIG. 1, 1 is a mobile station, 2 is a transmitter,
3 is a handset, 4 is a display unit, 5 is a voice interface, 6
Is a first control unit, 7 is a base station ID storage unit, and 8 is a mobile station I.
D storage unit, 9 operation unit, 10 base station radio interface, 11 antenna, 12 base station, 13 antenna, 14 mobile station radio interface, 15 second control unit, 16 mobile station An ID storage unit, 17 is a base station ID storage unit, 18 is a location registration management unit, 19 is a telephone line, and 20 is a communication unit. These are the same as in the conventional example, and the same reference numerals are given and the description thereof is omitted.

Reference numeral 21 denotes an electric field management section for measuring the electric field strength of the electromagnetic wave emitted by the base station 12 and transmitting the electric field strength to the base station 12, 22 a timer control section for inquiring the electric field strength of the mobile station 1 at every predetermined time, Reference numeral 23 denotes a location registration control management unit that stores a history of the electric field strength of the mobile station 1, and reference numeral 24 indicates that the electric field strength transmitted from the mobile station 1 is compared with the history of the electric field strength stored in the location registration control management unit 23 to move. Communication for disconnecting the radio of the mobile station 1 when the electric field strength transmitted from the station 1 is extremely weak and the moving speed of the mobile station 1 calculated from the electric field strength transmitted from the mobile station 1 is medium or high. It is a judgment part.

The operation of the wireless telephone device configured as described above will be described with reference to the drawings. FIG. 2 is a flowchart showing the communication of the base station of the wireless telephone device with the mobile station according to the embodiment of the present invention. First, base station 1
The operation 2 will be described with reference to the drawings. First, the timer of the timer control unit 22 is activated (S1). next,
It is determined whether it is a time-out (S2). no
If so, wait. If yes, it is determined whether the mobile station 1 is in the wireless zone (S3). no
If so, the process returns to S1. If yes, an electric field strength inquiry message is transmitted to the mobile station 1 (S
4). Next, the electric field strength message is received from the mobile station 1 (S5). Next, it is determined whether or not the location registration control management unit 23 has a history of electric field strength (S6). If the answer is no, the location registration control management unit 23 is newly registered (S7) and then the process jumps to S1. If yes, it is determined whether or not there is a large change in the field strength of the field strength message and the history of the field strength of the location registration control management unit 23 (S).
8). If no, the history of the electric field strength of the position registration control management unit 23 is updated (S12), and then the process jumps to S1. If yes, it is determined whether the electric field strength of the electric field strength message is gradually decreasing (S9).
If no, the history of the electric field strength of the position registration control management unit 23 is updated (S12), and then the process jumps to S1. y
If it is es, it is determined whether the moving speed of the mobile station calculated from the electric field strength of the electric field strength message is medium or high speed (S10). If no, the history of the electric field strength of the location registration control management unit 23 is updated (S12) and then S1.
Jump to. If yes, a wireless disconnection message is sent to the mobile station 1 (S11). Next, jump to S1.

Next, the operation of the mobile station 1 will be described with reference to the drawings. FIG. 3 is a flow chart showing communication between the mobile station and the base station of the wireless telephone device according to the embodiment of the present invention. First, it is determined whether there is a field strength inquiry message from the base station 12 (S13). n
If o, wait. If yes, the electric field strength at the current position is measured (S14). Next, the electric field strength message carrying the measured electric field strength is transmitted to the base station 12 (S15). Next, jump to S13.

Next, the operation of the mobile station when the mobile station moves at a medium or high speed will be described with reference to the drawings. FIG. 4 is a schematic diagram of a wireless telephone device according to an embodiment of the present invention.
In FIG. 4, reference numerals 25, 26 and 27 are base stations, 28 is a wireless zone in which electromagnetic waves of the base station 25 normally reach and can normally communicate with a mobile station, 29 is a wireless zone of the base station 26, and 30 is The wireless zone of the base station 27, 31 and 32 are mobile stations, and arrow A is the moving direction of the mobile station 31. As shown in FIG. 4, when the mobile station 31 starts moving at high speed in the direction of arrow A, a wireless disconnection message is sent from the base station 25 to the mobile station 31 before the mobile station 31 leaves the wireless zone 28. 31 disconnects the radio.

As described above, according to this embodiment, the mobile station is provided with the electric field management unit for measuring the electric field strength of the electromagnetic wave emitted from the base station and transmitting the electric field strength to the base station, and the base station is provided at predetermined time intervals. A timer control unit for inquiring the electric field strength to the mobile station, a position registration control management unit for storing the history of the electric field strength of the mobile station, and an electric field strength transmitted from the mobile station for the electric field strength stored in the position registration control management unit. Equipped with a communication judgment unit that disconnects the radio of the mobile station when the electric field strength is extremely weak compared to the history and the moving speed of the mobile station calculated from the electric field strength transmitted from the mobile station is medium or high Therefore, if the mobile station leaves the wireless zone at a medium or high moving speed, it disconnects the radio of the mobile station, so the battery life of the mobile station becomes longer, and the distance between the mobile station and the base station in the wireless zone increases. Uselessly mix traffic Let not.

[0018]

As described above, according to the present invention, the mobile station is provided with the electric field management unit for measuring the electric field strength of the electromagnetic wave emitted from the base station and transmitting the electric field strength to the base station, and the base station moves every predetermined time. A timer control unit for inquiring the station about the electric field strength, a location registration control management unit for storing the history of the electric field strength of the mobile station,
The electric field strength transmitted from the mobile station is extremely weak compared to the electric field strength history stored in the location registration control management unit, and the movement of the mobile station calculated from the electric field strength transmitted from the mobile station When the mobile station leaves the wireless zone at a medium or high speed, it can disconnect the radio of the mobile station because it has a communication determination unit that disconnects the radio of the mobile station when the speed is medium or high. Therefore, even if you move in multiple wireless zones in a short time, the location of the mobile station is not newly registered each time you move, so you do not waste the battery of the mobile station and the mobile station It is possible to realize an excellent wireless telephone device that does not cause traffic congestion between the two.

[Brief description of drawings]

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

FIG. 2 is a flowchart showing communication between a base station of a wireless telephone device and a mobile station according to an embodiment of the present invention.

FIG. 3 is a flowchart showing communication between a mobile station and a base station of a wireless telephone device according to an embodiment of the present invention.

FIG. 4 is a schematic diagram of a wireless telephone device according to an embodiment of the present invention.

FIG. 5 is a block diagram showing the configuration of a conventional wireless telephone device.

[Explanation of symbols]

 1 Mobile Station 2 Transmitter 3 Handset 4 Display 5 Voice Interface 6 First Control 7 Base Station ID Storage 8 Mobile Station ID Storage 9 Operation 10 Inter-Base Station Wireless Interface 11 Antenna 12 Base Station 13 Antenna 14 Radio interface between mobile stations 15 Second control unit 16 Mobile station ID storage unit 17 Base station ID storage unit 18 Location registration management unit 19 Telephone line 20 Communication unit 21 Electric field management unit 22 Timer control unit 23 Position registration control management unit 24 Communication Judgment unit 25, 26, 27 Base station 28, 29, 30 Radio zone 31, 32 Mobile station

Claims (1)

[Claims] 1. A radiotelephone device comprising a base station having at least one or more radio zones, and a mobile station performing radio communication with the base station, wherein the mobile station emits electromagnetic waves emitted from the base station. It has an electric field management unit for measuring the electric field strength and transmitting the electric field strength to the base station, the base station, a timer control unit for inquiring the mobile station about the electric field strength at every predetermined time, and the mobile station A location registration control management unit that stores a history of electric field strength, and a change between the electric field strength transmitted from the mobile station and the electric field strength compared with the history of the electric field strength stored in the location registration control management unit. Is large, and when the moving speed of the mobile station calculated from the electric field strength transmitted from the mobile station is medium or high, a communication determination unit for disconnecting the radio of the mobile station is provided. And nothing Telephone device.