JP3228010B2 - Wireless telephone equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

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

[0002]

2. Description of the Related Art In recent years, wireless telephone apparatuses have been rapidly spread, and wireless telephone apparatuses have been actively developed. As a communication method between a base station and a mobile station, a multi-zone system 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 using radio waves with low output, transmission power can be reduced. Since the same frequency is used repeatedly, the number of accommodated mobile stations can be increased.

[0003] A conventional wireless telephone device will be described below. FIG. 5 is a block diagram showing a 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 5, a voice interface for adjusting the gain of input and output of a voice signal, 6 a first control unit for controlling voice and control data between components, and 7 being registered. A base station ID storage unit that stores an identification code (hereinafter, referred to as an ID) of a base station, 8 is a mobile station ID storage unit that stores the ID of the mobile station 1, 9 is an external dial input or on-hook, An operation unit constituted by input means such as off-hook and the like, 10 is a radio interface between base stations for converting voice and control data in the mobile station 1 and a radio signal, 11 is an antenna for transmitting and receiving radio signals, and 12 is a mobile unit. A base station for communicating with the station 1; an antenna 13 for transmitting and receiving radio signals; a radio interface 14 between mobile stations for converting voice and control data in the base station 12 into radio signals;
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 storing the ID of the base station 12, and 18 is the ID of the mobile station in the wireless zone.
Is a location registration management unit, 19 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 and from the telephone line 19.

[0004] The operation of the wireless telephone device configured as described above will be described below. First, mobile station 1
Will be described. When the operation unit 9 is turned on, 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 radio signal is converted into voice and base station ID by the inter-mobile station radio interface 14. The second control unit 15 compares the base station ID with the base station ID stored in the base station ID storage unit 17, and when they match, connects the telephone line 19 and the mobile station 1 via the communication unit 20. .

Next, a case where the mobile station 1 receives a call will be described. When there is a call to the mobile station 1 from the telephone line 19, the second control unit 15 sends the location registration management unit 18 the mobile station 1
If the ID 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 transmitted to the inter-mobile station wireless interface 14. To a wireless signal. This wireless 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 a mobile station ID by the inter-base-station radio interface 10.
The first control unit 6 compares 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 if the mobile station ID and the mobile station ID match, so that the telephone line 19 and the mobile station 1 is connected.

[0006]

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

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

[0008]

In order to achieve this object, a wireless telephone device according to the first aspect of the present invention comprises a base station having at least one or more wireless zones, and a mobile station for performing wireless communication with the base station. A radio telephone device comprising:
The mobile station has an electric field management unit that measures the electric field strength of the electromagnetic wave emitted from the base station and transmits the electric field strength to the base station, the base station has a timer control unit that inquires the mobile station about the electric field strength at predetermined time intervals. The location registration control management unit that stores the history of the electric field strength of the mobile station, and the field strength transmitted from the mobile station is compared with the field strength history stored in the location registration control management unit. When the moving speed of 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 mobile station has a communication determination unit that 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 from the base station, transmits the electric field intensity to the base station, and the timer control unit inquires the mobile station of the electric field intensity at predetermined time intervals, and registers the position. The control management section stores the history of the electric field strength of the mobile station, and the communication determination section 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 section and transmits the result from the mobile station. If the obtained electric field strength is extremely weak and the moving 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 cut off. Battery life can be extended and unnecessary disruption of traffic in the wireless zone can be prevented.

[0010]

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

FIG. 1 is a block diagram showing a 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 receiver, 4 is a display unit, 5 is a voice interface, 6
Denotes a first control unit, 7 denotes a base station ID storage unit, and 8 denotes a mobile station I.
D storage unit, 9 is an operation unit, 10 is a radio interface between base stations, 11 is an antenna, 12 is a base station, 13 is an antenna, 14 is a radio interface between mobile stations, 15 is a second control unit, and 16 is a 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 those of the conventional example, and the same reference numerals are given and the description is omitted.

An electric field management unit 21 measures the electric field intensity of the electromagnetic wave emitted from the base station 12 and transmits the electric field intensity to the base station 12. A timer control unit 22 inquires the mobile station 1 of the electric field intensity at predetermined time intervals. 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 denotes a mobile station that compares the electric field strength transmitted from the mobile station 1 with the electric field strength history stored in the location registration control management unit 23. 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, the communication for disconnecting the radio of the mobile station 1 is performed. It is a judgment unit.

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 communication of a base station to a mobile station in the wireless telephone device according to one embodiment of the present invention. First, base station 1
Operation 2 will be described with reference to the drawings. First, the timer of the timer control unit 22 is started (S1). next,
It is determined whether or not a timeout has occurred (S2). no
If so, wait. If yes, it is determined whether there is a mobile station 1 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, a 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 the electric field strength (S6). If no, the process jumps to S1 after newly registering (S7) in the location registration control management unit 23. If yes, it is determined whether the change between the electric field strength of the electric field strength message and the history of the electric field strength of the position registration control management unit 23 is large (S
8). If no, the process jumps to S1 after updating the history of the electric field strength of the location registration control management unit 23 (S12). If yes, it is determined whether the electric field strength of the electric field strength message is gradually reduced (S9).
If no, the process jumps to S1 after updating the history of the electric field strength of the location registration control management unit 23 (S12). 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 (S10). If it is no, after updating the history of the electric field strength of the location registration control management unit 23 (S12), the process proceeds to 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 flowchart showing communication of a mobile station to a base station in the wireless telephone device according to one embodiment of the present invention. First, it is determined whether there is an electric field strength inquiry message from the base station 12 (S13). n
If it is o, wait. If yes, the field intensity at the current position is measured (S14). Next, an electric field strength message carrying the measured electric field strength is transmitted to the base station 12 (S15). Next, the process jumps 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 one embodiment of the present invention.
In FIG. 4, 25, 26, and 27 are base stations, 28 is a wireless zone in which electromagnetic waves of the base station 25 can reach normally and can communicate normally with a mobile station, 29 is a wireless zone of the base station 26, and 30 is a wireless zone. The wireless zone of the base station 27, 31 and 32 indicate mobile stations, and the arrow A indicates 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 radio disconnection message is sent from the base station 25 to the mobile station 31 before the mobile station 31 leaves the radio zone 28, and the mobile station 31 31 disconnects the radio.

As described above, according to the present embodiment, the mobile station is provided with the electric field management unit for measuring the electric field intensity of the electromagnetic wave emitted from the base station and transmitting the electric field intensity to the base station, and the base station is provided at every predetermined time. A timer control unit that inquires the mobile station of the electric field strength, a position registration control management unit that stores the history of the electric field strength of the mobile station, and an electric field strength transmitted from the mobile station. A communication determination unit that disconnects the radio of the mobile station if the electric field strength is extremely weak compared with 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; When the mobile station leaves the wireless zone at a high speed, the mobile station disconnects its radio, so the battery life of the mobile station is extended and the mobile station and the base station in the wireless zone are disconnected. Mix traffic unnecessarily Let not.

[0018]

As described above, the present invention comprises an electric field management unit in which a mobile station measures the electric field strength of an electromagnetic wave emitted from a base station and transmits the electric field strength to the base station, and the base station moves at predetermined time intervals. A timer control unit for inquiring the station of 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 history of the electric field strength 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 has a communication judgment unit that cuts off the radio of the mobile station when the speed is medium or high. Even if the mobile station moves in a plurality of wireless zones in a short time, it does not register a new location with the base station each time it moves, so that the battery of the mobile station is not unnecessarily wasted and the mobile station and the base station are not wasted. An excellent wireless telephone device that does not congest traffic during the period can be realized.

[Brief description of the 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 and a mobile station in a wireless telephone device according to an embodiment of the present invention;

FIG. 3 is a flowchart showing communication of a mobile station to a base station in the wireless telephone device in one 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 a configuration of a conventional wireless telephone device.

[Explanation of symbols]

 Reference Signs List 1 mobile station 2 transmitter 3 receiver 4 display unit 5 voice interface 6 first control unit 7 base station ID storage unit 8 mobile station ID storage unit 9 operation unit 10 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 Location registration control management unit 24 Communication Judgment unit 25, 26, 27 Base station 28, 29, 30 Wireless zone 31, 32 Mobile station

Claims (1)

(57) [Claims] 1. A radio telephone device comprising: a base station having at least one or more radio zones; and a mobile station that performs radio communication with the base station, wherein the mobile station transmits an electromagnetic wave generated by the base station. An electric field management unit that measures the electric field intensity and transmits the electric field intensity to the base station, the base station has a timer control unit that inquires the mobile station about the electric field intensity every predetermined time, A position registration control management unit that stores a history of the electric field strength, and the electric field strength transmitted from the mobile station is compared with the history of the electric field strength stored in the location registration control management unit, and the change with the electric field strength is different. 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 determining unit for disconnecting the radio of the mobile station is provided. And nothing Telephone device.