JPH08126046A - Radio communication system - Google Patents

Abstract

PURPOSE: To smoothly switch a mobile radio equipment to other base station by providing a means setting plural setting values used for comparing a measured electric field strength in the mobile radio equipment. CONSTITUTION: When a mobile radio equipment 14 registered in a base station 8 moves to the position of a mobile radio equipment 15, the equipment 14 receives effects from both the base stations 8, 9. In order to discriminate a best base station, the electric field strength is measured and received as data in a setting value input section. The electric field strength from a registered base station is processed as data by an electric field strength discrimination section and a comparator section compares the data with setting data. As a result, the data of the electric field strength is lower than the setting data, a base station changeover control operation is started to replace the base station 8 with the base station 9. Even when the electric field strength data are higher than the setting data and the electric field strength of the base station 9 is stronger, the comparator section is used to make discrimination and to select the base station. Since the input of setting data is made by using the operation switch used for the operation, the setting is made in a field depending on its environment.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a radio which automatically switches and moves a base station to be registered.

[0002]

2. Description of the Related Art As a conventional technique, in the system described in claim 1, in order for the mobile station radio to switch to the management of another base station, a signal from the currently registered base station is transmitted for a certain period. If it cannot be received, when the mobile station wireless device captures another base station that can receive the signal and re-registration is completed, or if it is set in advance and cannot be changed for a certain period of time or less Then, there is a method for when the re-registration is completed in another base station.

[0003]

In the above-mentioned prior art,
Even if the electric field strength is weak, if the signal from the registered base station cannot be received for a certain period, or if the electric field strength is below a fixed value for a certain period of time, Since it is not re-registered with the base station, the call must be made within the control of the base station with the bad communication line. SUMMARY OF THE INVENTION It is an object of the present invention to eliminate this drawback, enable setting of an electric field strength determination value according to a use environment, and smoothly perform switching operation of a mobile station radio to another base station.

[0004]

In order to achieve the above object, the present invention divides electric field strength judgment into a plurality of levels,
In addition, it has a level setting function, and if the level is less than or equal to an arbitrarily set value, the base station is switched.

[0005]

As a result, even if the mobile station radio moves to a place where the electric field strength is relatively weak, if the electric field strength falls below an arbitrary set value, the mobile station radio will automatically be Since it is re-registered to the base station having a strong electric field strength, it is possible to talk on the best communication line.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. A control station 1 controls a plurality of base stations. Two
-5 connect a control station and a base station with a connection line. Base stations 6 to 9 send and receive signals to and from each mobile station wireless device under the control of the control station. Reference numerals 10 to 13 represent ranges in which each base station can communicate with the mobile station radio. Reference numerals 14 and 15 are mobile station radios. Reference numeral 16 is a CPU of the mobile station radio. An electric field strength determination unit 17 converts information on electric field strength into data. 1
Reference numeral 8 denotes a set value input unit, which converts the input numerical value into data. A comparator 19 compares the actual electric field strength data with the setting data. Reference numeral 20 represents information on the electric field strength. Reference numeral 21 represents input information. 22 represents electric field strength data. 23
Represents setting data. Reference numeral 24 represents information on base station switching control. Reference numeral 25 represents information from the CPU.

Next, the operation of this system will be described. The mobile station radio 14 currently registered in the base station 8
However, if it moves to the position of the mobile station radio 15, it will be affected by both the base stations 8 and 9. For example, to determine which is the best base station when such a situation occurs, enter a certain field strength value and enter
Set as the data in the set value input section. The electric field strength from the registered base station is converted into data through the electric field strength judgment unit 17 and
Is compared with the setting data. As a result, if the value is lower than the setting data, the base station switching control operation is activated, and the base station 8 is switched to the base station 9.

Further, even if the electric field strength data is higher than the setting data, and the electric field strength of the base station 9 is strong, the comparison unit 19 makes a judgment and switches the base station. Since the setting data is input by using the operation switch used in operation, it is possible to set according to the environment in the field.

[0009]

According to the present invention, the mobile station radio selects the base station with the highest electric field strength from the base stations that can currently receive the signal, so that the communication line does not fall into a bad state. It is possible to talk with the mobile station wireless device.

[Brief description of drawings]

FIG. 1 is a diagram showing an overall configuration of the present invention.

FIG. 2 is a system operation diagram showing an embodiment of the present invention.

[Explanation of symbols]

 1 Control station 2 Communication line between base station 6 and control station 3 Communication line between base station 7 and control station 4 Communication line between base station 8 and control station 5 Communication line between base station 9 and control station 6 Base station 7 Base station 8 Base station 9 Base station 10 Management area for base station 6 Management area for base station 7 Management area for base station 8 Management area for base station 8 Management area for base station 9 Mobile station radio 15 Mobile station radio 16 CPU 17 Electric field strength determination unit 18 set value input section 19 comparison section 20 electric field strength information 21 input information 22 electric field strength data 23 setting data 24 base station switching control information 25 control information

Claims (1)

[Claims] 1. A plurality of base stations, a mobile radio that transmits and receives to and from the base station, and a control station that controls transmission and reception of the base station to and from the mobile radio. A wireless communication method for comparing a set value and a measured electric field strength, wherein the mobile wireless device is provided with means for setting a plurality of the set values.