JP2001292111A - Method for testing radio communications equipment - Google Patents

Abstract

PROBLEM TO BE SOLVED: To solve a problem that an evaluation result, corresponding to an environment cannot be obtained by a conventional testing method at the time of evaluating the radio wave characteristic of the object of a test since the spread of a radio wave in an arriving direction (spread of radio wave) to the object of the test cannot be realized by the conventional testing method, at the time of outputting the test radio wave to the object of the test. SOLUTION: A plurality of antennas, arranged to the object input controlled test signals and a plurality of antennas radiate the radio waves to the object based on a procedure for outputting a test signal conducting the test on the object, a procedure for controlling the test signal, based on the radio wave environment which is previously decided and a prescribed condition.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a radio communication device test method for evaluating radio wave characteristics of radio communication devices.

[0002]

2. Description of the Related Art As a conventional test method for a wireless communication device, there is one disclosed in Japanese Patent Application Laid-Open No. H11-188693.

The above prior art will be described below with reference to FIG. In FIG. 1, 1 is a signaling tester that simulates a base station, 8 is a measurement box, 9 is a radio wave absorber mounted on one side inside the measurement box 8, 2 is connected to the signaling tester 1, and a signal from the signaling tester 1 is provided. Is connected to the distributor 2 and the distributor 2 is connected to the distributor 2.
A phase shifter for changing the phase of the signal output from the phase shifter; 6 an amplifier for amplifying the output signal from the phase shifter 3; 7 a transmission antenna connected to the amplifier 6 for transmitting the signal amplified by the amplifier 6 Reference numeral 5 denotes a D / A converter for generating a signal for switching the phase shifter 3, and 4 a timing signal for D / A conversion of the phase shifter 3 to the D / A converter 5, A personal computer that supplies digital data to the signaling tester 1 and controls the operation of the signaling tester 1;
Reference numeral 10 denotes a wireless terminal to be tested, which is installed in the measurement box 8, and 11 denotes a receiving antenna that receives a wireless signal output from the wireless terminal 10. The solid line in the figure indicates the signal flow.

Next, the operation will be described. The output signal of the signaling tester 1 which is a single frequency transmission signal source is distributed to a plurality of signals by the distributor 2. Based on different random numbers generated by the personal computer 4 for each signal, each of the distributed signals is subjected to a phase shift of the output by each phase shifter 3 by the signal output by the D / A converter 5. Change randomly. After the respective signals are amplified by the respective amplifiers 6, the amplified signals are transmitted from the respective transmitting antennas 7, and fading is generated by actually causing radio waves to interfere in the measuring box 8. By mounting the radio wave absorber 9 on the surface of the measurement box 8 facing the transmission antenna 7, the difference from the actual environment is reduced. That is, in order to prevent the reflected wave from attenuating in a narrow space, the radio wave absorber 9 is provided to attenuate the radio wave, thereby creating the same environment as the actual environment.

[0005]

The conventional method for testing wireless communication equipment is constructed as described above.
When a test radio wave is output from the wireless terminal 10 to the wireless terminal 10 (test object), the spread of the arrival direction of the radio wave to the test object (spread of the radio wave) cannot be realized. Therefore, when evaluating the radio wave characteristics of the test object, it was not possible to obtain an evaluation result corresponding to the actual environment.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-described problem, and has an object to provide a test radio wave with a simple configuration and obtain a highly accurate radio wave characteristic evaluation result.

[0007]

In order to achieve the above object, a method for testing a wireless communication device according to claim 1 is provided.
A procedure for outputting a test signal for testing the object, a procedure for controlling the test signal based on a predetermined radio wave environment, and a plurality of steps arranged for the object based on predetermined conditions. Antennas input the controlled test signal, and the plurality of antennas emit radio waves to the object.

[0008] According to a second aspect of the present invention, a plurality of antennas are arranged on a vertical line to an object based on a predetermined condition.

According to a third aspect of the present invention, there is provided a method for testing a radio communication device, wherein on a vertical line with respect to an object, the antenna and the vertical portion are arranged at a narrower predetermined interval between the antennas, and more antennas are arranged. In the portion, the antenna is arranged with a predetermined arrangement interval of the antenna widened, so that the spread of the radio wave to the object is made to have a normal distribution.

[0010] According to a fourth aspect of the present invention, fading is generated by moving a plurality of antennas based on predetermined conditions.

According to a fifth aspect of the present invention, there is provided a wireless communication device test method, comprising: outputting a test signal for testing an object; controlling the test signal based on a predetermined radio wave environment; A procedure in which an antenna arranged on the object based on the condition for inputting the controlled test signal and radiating radio waves, based on predetermined conditions on a side opposite to the object side of the antenna, The reflector arranged in the vertical direction radiates radio waves radiated from the antenna to the object.

According to a sixth aspect of the present invention, in the method for testing a wireless communication device, the reflecting portion is a plurality of reflecting plates arranged based on predetermined conditions.

According to a seventh aspect of the present invention, there is provided a radio communication device test method, wherein the arrangement of a plurality of reflectors is controlled based on predetermined conditions, thereby changing the distance to an object and transmitting a radio wave having a wide delay time. Radiate.

In the wireless communication device test method according to the present invention, fading is generated by moving a plurality of reflectors based on predetermined conditions.

According to a ninth aspect of the present invention, the intensity of the reflected radio wave is made variable by controlling the direction of the reflector near the antenna based on a predetermined condition.

According to a tenth aspect of the present invention, there is provided a wireless communication device test method, comprising: outputting a test signal for testing an object; controlling the test signal based on a predetermined radio wave environment; A step of inputting the controlled test signal and radiating a radio wave based on the condition of the antenna placed on the object, and disposing the antenna between the antenna and the object based on predetermined conditions. The radio wave radiated from the antenna is radiated to the object via the lens.

[0017]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiment 1 Embodiment 1 of the present invention provides a procedure for outputting a test signal for testing an object, a procedure for controlling the test signal based on a predetermined radio wave environment, and a procedure for controlling the test signal based on a predetermined condition. Inputting the controlled test signal to a plurality of antennas arranged with respect to an object, and radiating radio waves to the object with the plurality of antennas. I do. FIG. 2 shows an embodiment of a wireless communication device test method according to the present invention. The test signal generator 101 outputs a test signal for testing an object, and the test signal generator 101 outputs the test signal based on a predetermined radio wave environment. A control unit 102 for controlling, a pseudo line unit 106, a plurality of antennas 110a to 110a-1 arranged for the object based on predetermined conditions.
Radiation antenna group 110 composed of 10f, test object 11
1 and an anechoic chamber 109 including the radiation antenna group 110 in the room. Further, the control unit 102 includes a setting unit 104 for setting a radio wave environment, an evaluation data holding unit 103 in which data regarding various radio wave environments is stored, and a setting content of the setting unit 104 based on the data of the evaluation data holding unit 103. A calculation unit 105 that calculates the amount of phase shift and amount of attenuation of the signal according to the
Having. Further, the pseudo line unit 106 controls the control unit 102 with respect to the signal output from the test signal generation unit 101.
Phase shifter 10 that imparts a desired amount of phase according to the control from
7. It has an attenuator 108 for giving a desired amount of attenuation to the signal to which the phase has been added. Next, details of the first embodiment will be described. The test signal generation unit 101 simulates a signal generated by a normal base station or terminal. The setting unit 104 of the control unit 102 sets the radio wave environment for the test. According to this setting, based on the data of the evaluation data holding unit 103, the arithmetic unit 105 calculates the phase shifter 107 and the attenuator of the pseudo line unit 106. The amount of phase shift and the amount of attenuation of 108 are calculated. The data of the evaluation data holding unit 103 is
It may be based on a simulation result or based on an actual measurement value itself. Subsequently, the phase shift amount and the attenuation amount of the phase shifter of the pseudo line unit 106 are respectively controlled by the phase shift amount and the attenuation amount obtained by the arithmetic unit 105, and the signal obtained by the pseudo line unit 106 is controlled. To the anechoic chamber 109, and this signal is input to the radiating antenna group 110 in the anechoic chamber 109. The input signal is transmitted to a plurality of antennas 110a to 11a of the antenna group 110.
0f is omnidirectionally radiated as radio waves into the anechoic chamber 109. The anechoic chamber 109 has a shielding effect of blocking a frequency band of a radio wave environment to be generated from the outside, and at least an inner wall of the room is covered with a radio wave absorber to prevent unexpected reflection in this frequency band. . Therefore, the plurality of antennas 110 of the antenna group 110
a to be tested 11 out of radio waves radiated from
Anything other than the one in the direction of 1 is absorbed by the radio wave absorber on the inner wall of the anechoic chamber, and only the one in the direction of the test object 111 reaches the test object 111. The test object 111 and the plurality of antennas 110a to 110f of the antenna group 110
Is placed in a predetermined position as a condition.
The arrangement and operation are shown in FIG. 2 as an example. Antenna group 110
The plurality of antennas 110a to 110f are placed slightly apart from each other. Therefore, for example, a radio wave reaching the test object 111 from the antenna 110a and a radio wave reaching the test object 111 from the antenna 110f arrive at an angle as can be seen from FIG.
The other antennas 110b to 110e are
From the viewpoint, the antennas 110a to 110f are installed so as to be located between the antennas 110a to 110f, so that the
Since 0f radiates the radio wave of the same signal, the radio wave of the same signal arrives at the test object 111 from within this angle, so that the spread of the arrival direction of the radio wave can be realized. Further, as shown in FIG.
a to 110f, these antennas 110a
距離 110f to the test object 111 can have different distances from each other. All antennas 110
Since the same radio waves are radiated from a to 110f, the arrival times of the radio waves to the test object 111 are different between the respective antennas 110a to 110f.
Spread of delay time can be realized.

Embodiment 2 FIG. Embodiment 2 of the present invention
Describes a wireless communication device test method in which a plurality of antennas are arranged on a vertical line with respect to the object based on predetermined conditions. FIG. 3 shows an example of the embodiment in an anechoic chamber. The signal output from the pseudo line section 106 is input to the radiating antenna group 110 in the anechoic chamber 109. At this time, the antenna group 110
Are input to the respective antennas 110a to 110f via delay circuits 112a to 112f connected to the respective antennas. Also, the antennas 110a to 110f of the antenna group 110
Are arranged substantially linearly vertically toward the test object 111. The operation will be described. Pseudo line section 106
Input into the anechoic chamber 109 from the delay circuit 1
The delay time is set by each of 12a to 112f.
This delay time may be set in advance,
It may be settable from outside. Output signals from each of the delay circuits 112a to 112f
Due to 0a to 110f, it is radiated omnidirectionally as radio waves. This radio wave is absorbed by the radio wave absorber on the inner wall of the anechoic chamber except for the one in the direction of the test object 111, and only the one in the direction of the test object 111 is tested. The object 111 is reached. Antenna 110a
As shown in FIG. 3, the radio waves reaching the test object 111 from each of the antennas 110a to 110f come from slightly different directions, respectively. Therefore, the spread of the arrival direction of the radio wave can be realized. Further, the distance between each of the antennas 110a to 110f and the test object 111 is determined by the fact that the antennas 110a to 110f are arranged in a line and perpendicular to the test object 111.
It is almost the same. Here, each of the antennas 110a to 110a
f denotes a signal output from the pseudo line section 106, which is input after being delayed by values set separately by the delay circuits 112a to 112f and radiated from the antenna. Also the delay circuit 11
2a to 112f, the delay times are set individually, and therefore, the delay circuits 112a to 112f
By setting 2f, a radio wave having a wide delay time can be realized. As described above, since the delay amount can be adjusted by the delay circuit, it is possible to easily adjust the delay amount and realize a free (large) delay amount which is not affected by the size of the dark room.

Embodiment 3 Embodiment 3 of the present invention
In a vertical line with respect to the object, the antenna and the vertical portion (central portion) narrow the predetermined arrangement interval of the antenna to arrange more antennas, and the portion away from the vertical portion (central portion) is A method of testing a wireless communication device in which the spread of radio waves to the object is made to have a normal distribution by arranging the antennas with a predetermined arrangement interval wide will be described. FIG. 4 shows an example of the arrangement of the antenna. As shown in the drawing, the arrangement of the antennas 110a to 110g is such that the interval between the antennas is narrowed at the center and the interval between the antennas is widened at a portion away from the center. Test object 1
Radio waves reach the antenna 11 from each of the antennas 110a to 110g as shown by the broken lines. FIG. 5A shows a graph of a radio wave reaching the test object 111 and its arrival angle. As shown in this figure, it can be seen that radio waves arrive densely at the center and sparsely arrive at the periphery.
In general, it can be considered that radio waves arrive according to the distribution shown by the solid line in FIG. 5B. That is, as shown here, by disposing the antennas 110a to 110g densely in the central part and sparsely in the peripheral part, the spread of the radio wave reaching the test object 111 is increased. The parts can be sparse and have a normal distribution. Conversely, as a method of determining the arrangement of each antenna, a distribution of the spread in the direction of arrival is determined, a value is generated according to this distribution (for the number of antennas), and the antenna is arranged in the direction of the angle of this value. Can be. Also, antennas 110a to 110g
Are arranged at equal intervals, an incoming wave having a uniform spread can be obtained.

Embodiment 4 Embodiment 4 of the present invention
In the following, a description will be given of a wireless communication device test method in which fading occurs by moving a plurality of antennas based on predetermined conditions. As shown in FIG.
Each of Oa to 110f is installed so as to be able to move back and forth in the direction of the test object 111. Specifically, instead of directly fixing each of the antennas 110a to 110f to a floor or the like, a rail or the like is used, and the rail is provided in the direction of the test object, and can be moved along the rail on the rail. This can be realized by providing a cart and fixing the antenna to the cart at an appropriate height. When testing the test object, each antenna is individually moved on the rail back and forth as indicated by the arrow in FIG. As a result, since the distance between the antenna and the test object changes, the phase of the radio wave reaching the test object changes. Fading occurs when the radio waves having changed phases interfere with each other. Thus, fading can be generated relatively easily.

Embodiment 5 Embodiment 5 of the present invention
A procedure for outputting a test signal for testing an object, a procedure for controlling the test signal based on a predetermined radio wave environment, and a procedure for controlling the test signal based on a predetermined condition. A step in which the controlled antenna receives the controlled test signal and emits a radio wave, and a reflecting portion (reflecting mirror) arranged on a side opposite to the object side of the antenna based on a predetermined condition, Radiating a radio wave radiated from an antenna to the object will be described. The procedure for outputting a test signal in this embodiment and the procedure for controlling the test signal are as follows:
This is the same as in the first embodiment. FIG. 7 shows a pseudo line unit 106 which is a part for controlling a test signal in this embodiment.
1 shows an example of an anechoic chamber into which a signal is input. The signal output from the pseudo line unit 106 is input to a single antenna 113 in an anechoic chamber 109,
From the anechoic chamber 109 as a radio wave in a non-directional manner. In the anechoic chamber 109, the reflector 114 is arranged on the side of the antenna 113 opposite to the test object 111.
The reflecting mirror 114 is connected to the antenna 113 and the test object 11.
It is placed in a shape that forms part of an elliptical surface (indicated by a dashed line in FIG. 7) having two points of focus at position 1. Antenna 1
Radio waves radiated omnidirectionally from the test object 111
The object in the direction of the reflecting mirror 114 placed on the opposite side is reflected by the reflecting mirror 114, but in the other directions, except for the direction of the test object 111, It is absorbed by the radio wave absorber on the inner wall of the dark room 109. That is, the radio waves that reach the test object 111 are only the radio waves radiated from the antenna 113 that directly go to the test object 111 and those that are reflected by the reflector 114. Here, the reflecting mirror 114 is the test object 1
11 and the antenna 113 are part of an ellipsoid having two focal points, so that the radio wave radiated from the antenna 113 located at one focal point and reflected by the reflecting mirror 114 is located at the other focal point. Toward the test object 111 to be tested. Therefore, all the radio waves radiated from the antenna 113 and reflected by the reflecting mirror 114 are directed to the test object 111, and at the position of the test object 111,
The radio wave arrives from the entire direction of the reflector 114, and a radio wave having a spread in the arrival direction can be obtained. In this way, as shown in FIG. 7, the use of one antenna 113 and the reflecting mirror 114 eliminates the need for many antennas as shown in the previous examples, and allows the antenna to easily spread in the direction of arrival. Incoming waves can be obtained.

Embodiment 6 FIG. Embodiment 6 of the present invention
In the following, a description will be given of a wireless communication device test method provided with a reflecting portion composed of a plurality of reflecting plates arranged based on predetermined conditions. As shown in FIG. 8, a plurality of reflecting mirrors 114a to 114g are replaced by a test object 111 and an antenna 113 instead of the elliptical reflecting mirror 114 as described in the fifth embodiment. Are arranged so as to be in contact with the ellipsoid. Radio waves radiated from the antenna 113 are reflected by these reflecting mirrors 114a to 114g. Since these reflecting mirrors 114a to 114g are arranged so as to be in contact with the elliptical surface, the antenna 113 located at one focal point
, And reflected by the reflecting mirrors 114a to 114g reach the test object 111 located at another focal point. That is, in the test object 111,
Radio waves radiated from the antenna 113
Since the waves arrive from the directions of a to 114g, an incoming wave having a spread in the direction of arrival of the radio wave can be realized. Further, in this case, the reflecting mirrors 114a to 114g can be realized not only by elliptical shapes but also by flat mirrors.

Embodiment 7 Embodiment 7 of the present invention
In the following, a description will be given of a method of testing a wireless communication device that radiates radio waves having a wide delay time by changing the distance to the object by controlling the arrangement of a plurality of reflectors based on predetermined conditions. The reflecting mirrors 114a to 114g of the sixth embodiment shown in FIG. 8 are arranged so as to be in contact with one elliptical surface, but the reflecting mirrors 114a to 114g are respectively connected to the antenna 113 and the test object 111. They may be arranged so as to be in contact with different elliptical surfaces whose positions are focal points.
As shown in FIG. 8, all the reflecting mirrors 114a to 114g
Is arranged so as to be in contact with one elliptical surface, the light is reflected from the antenna 113 by each of the reflecting mirrors 114a to 114g, and the distance to the test object 111 is
All are the same. However, as shown here, the reflector 1
When 14a to 114g are arranged in contact with different elliptical surfaces, the distances from the antenna 113 to the test object 111 via the respective reflecting mirrors can be set differently. Thus, each of the reflecting mirrors 114a-1114a-1
By arranging the 14 g in contact with different elliptical surfaces, it is possible to change the distance from the antenna 113 to the test object 111 and realize a radio wave having a wide delay time.

Embodiment 8 FIG. Embodiment 8 of the present invention
In the following, a description will be given of a wireless communication device test method in which fading occurs by moving a plurality of reflectors based on predetermined conditions. As shown in FIG.
4a to 114g are respectively moved back and forth in the direction of the test object 111 separately. By moving in this way, the distance from the antenna 113 to the test object 111 changes, and a phase change occurs, whereby fading can be generated due to mutual interference with other radio waves. .

Embodiment 9 Embodiment 9 of the present invention
In the following, a description will be given of a wireless communication device testing method in which the intensity of a reflected radio wave is made variable by controlling the direction of a reflector near an antenna based on predetermined conditions. Each reflecting mirror 114a
To 114 g are the antenna 113 and the test object 11, respectively.
Arranged so as to be in contact with different ellipsoids having 1 as two focal points, all the radio waves reflected by the respective reflectors from the antenna 113 were directed toward the test object 111, but the When the direction is changed, the antenna 11
The reflected radio wave coming from 3 is reflected in a direction deviating to the test object 111. That is, if the direction of the reflecting mirror is controlled and the direction is slightly changed, only a part of the reflected radio wave goes to the direction of the test object 111, and by increasing this angle, the angle of the test object 111 is increased. Radio waves going in the direction can be reduced. In this way, by controlling the angle of the reflecting mirror, the intensity of the reflected radio wave can be made variable.

Embodiment 10 FIG. Embodiment 1 of the present invention
0 is a procedure for outputting a test signal for testing an object;
A procedure for controlling the test signal based on a predetermined radio wave environment, and an antenna arranged for the object based on predetermined conditions inputs the controlled test signal and transmits a radio wave. Wireless communication comprising a step of radiating, and a step of radiating a radio wave radiated from the antenna to the object through a lens arranged based on predetermined conditions between the antenna and the object. The device test method will be described. FIG. 10 shows an embodiment. In FIG.
The steps from output from the pseudo line section 106 to emission from the antenna 113 disposed in the anechoic chamber 109 as radio waves are the same as in the first and fifth embodiments. Antenna 113
A radio wave lens 115 such as a derivative lens is placed between the test object 111 and the test object 111. Generally, the refractive index n of the dielectric lens and the dielectric constant ε of the dielectric are n ² = ε
> 1. Therefore, if the shape of the dielectric lens is a convex lens, a lens that collects radio waves can be configured. This convex lens-shaped radio wave lens transmits radio waves radiated from the antenna 113 in the same manner as the optical lens.
5 and the radio wave passing through the radio lens
Set up to gather at 11. Thus, by installing the radio wave lens 115 between the antenna 113 and the test object 111, the radio waves radiated from the antenna 113 and passed through the radio wave antenna 115 collectively reach the test object 111. Thus, the test object 111 includes:
Radio waves having a spread in the direction of arrival can be transmitted and received from the entire surface of the radio wave lens 115.

[0027]

As described above, the method for testing a wireless communication device of the present invention is configured as described above. Therefore, when outputting a radio wave to the test object, the spread of the arrival direction of the radio wave to the test object (the spread of the radio wave) ) Can be realized with a simple configuration. Therefore,
When the radio wave characteristic of the test object is evaluated, an evaluation result corresponding to the actual environment can be obtained.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a conventional wireless communication device test method.

FIG. 2 is a block diagram of an example showing a method according to the first embodiment of the present invention;

FIG. 3 is a block diagram of an example showing a method according to the second embodiment of the present invention;

FIG. 4 is a block diagram of an example showing a method according to Embodiment 3 of the present invention;

FIG. 5 is a diagram illustrating a distribution of a radio wave arrival direction according to a third embodiment of the present invention.

FIG. 6 is a block diagram of an example showing a method according to a fourth embodiment of the present invention.

FIG. 7 is a block diagram of an example showing a method according to the fifth embodiment of the present invention.

FIG. 8 is a block diagram of an example showing a method according to the sixth embodiment of the present invention.

FIG. 9 is a block diagram of an example showing a method according to the eighth embodiment of the present invention.

FIG. 10 is a block diagram of an embodiment showing a method according to the tenth embodiment of the present invention.

[Explanation of symbols]

101 Test signal generator for outputting test signal, 10
6 Pseudowire section for controlling the test signal, 102 Control section for controlling the test signal generation section and the pseudowire section, 111 test object, 110 Plurality of antennas for emitting the pseudowire section output signal, 114 Reflecting part (reflecting mirror), 114a to 114f Plural reflecting mirrors, 115 radio wave lens.

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Claims (10)

[Claims] A step of outputting a test signal for testing the object, a step of controlling the test signal based on a predetermined radio wave environment, and a step of outputting the test signal based on a predetermined condition. A plurality of antennas arranged in the same direction to input the controlled test signal, and the plurality of antennas emit radio waves to the object. 2. The method according to claim 1, wherein the plurality of antennas are arranged on a vertical line to the object based on a predetermined condition. 3. On a vertical line to the object,
In the portion perpendicular to the antenna, the predetermined arrangement interval of the antenna is reduced to arrange more antennas, and in the portion away from the portion perpendicular to the antenna, the antenna is arranged by increasing the predetermined arrangement interval of the antenna. The method according to claim 2, wherein the spread of the radio wave to the object is made to have a normal distribution. 4. The radio communication equipment test method according to claim 1, wherein fading is generated by moving the plurality of antennas based on a predetermined condition. 5. A step of outputting a test signal for testing an object, a step of controlling the test signal based on a predetermined radio wave environment, and a step of controlling the object based on predetermined conditions. A step of inputting the controlled test signal and radiating a radio wave, and a reflector disposed on a side opposite to the object side of the antenna based on predetermined conditions, the antenna disposed in the antenna, Radiating a radio wave radiated from the object to the object. 6. The method according to claim 5, wherein the reflector is a plurality of reflectors arranged based on a predetermined condition. 7. The radio according to claim 6, wherein the arrangement of the plurality of reflectors is controlled based on a predetermined condition to change the distance to the object and emit a radio wave having a wide delay time. Communication equipment test method. 8. The method according to claim 4, wherein fading is generated by moving the plurality of reflectors based on predetermined conditions. 9. The method according to claim 6, wherein the intensity of the reflected radio wave is varied by controlling the direction of the reflector near the antenna based on a predetermined condition. 10. A procedure for outputting a test signal for testing an object, a procedure for controlling the test signal based on a predetermined radio wave environment, and a procedure for controlling the object based on predetermined conditions. A procedure in which the arranged antenna receives the controlled test signal and emits a radio wave, and a lens arranged based on predetermined conditions between the antenna and the object, from the antenna. Radiated radio waves,
Radiating the object.