JP2704141B2 - Wireless device and measurement adjustment method of the wireless device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a transmitter for controlling a transmission output level, a receiver for monitoring a reception input level, a radio apparatus including the transmitter and the receiver, and a measurement adjustment method for the radio apparatus. .

[0002]

2. Description of the Related Art As a conventional radio apparatus of this type, the technology disclosed in Japanese Patent Application Laid-Open No. 2-89428 (name of the invention: a radio apparatus having an automatic adjustment function) is disclosed. In the transmitter section of the wireless device, a fixed reference transmission output level is instructed from an external automatic measuring instrument, and the control section outputs a signal corresponding to the reference transmission output level and a detection signal of the transmission output output from the transmitter section. The automatic adjustment of the transmission output level is performed by controlling the transmission output control signal responding to the above. Then, the control unit stores each control data at the time of the automatic adjustment in the data holding type memory, and transmits the data using the stored control data at the next adjustment or operation after the power of the wireless device is turned off. The output level can be automatically adjusted.
Further, in the receiver unit, the reception input level received by the control unit at the time of adjustment of the receiver unit is stored in the data holding type memory, and various control during operation is performed based on the stored reception input level. Used for

[0003]

When a wireless device for mobile communication or the like is manufactured, it is necessary to appropriately and quickly set various characteristics such as a transmission output level and a reception input level of many wireless devices. However, the transmission output control signal-to-transmission output level characteristics, transmission output-to-detection signal output characteristics, reception electric field-to-reception input level characteristics, and the like of these wireless devices when no adjustment is performed vary from device to device. Therefore, in order to appropriately perform such quality control of the wireless device, it is necessary to not only set the various characteristics of the wireless device appropriately and quickly, but also to record the various characteristics and acquire quality data.

[0004] However, although the wireless device having the automatic adjustment function has the advantages of ensuring convenience in use and easy adjustment, the characteristics of the device are recorded by an adjustment device (measuring device). There was a disadvantage that it could not be done.

[0005]

SUMMARY OF THE INVENTION A transmitter according to the present invention comprises:
An electrically erasable read-only memory that stores a reference transmission output level and a reference detection signal level, a transmission unit that outputs a transmission signal having a level corresponding to a transmission output control signal, and detects the level of the transmission signal A detector that generates a detection signal, and stores the reference transmission output level and the reference detection signal level supplied to a control data input / output terminal in the read-only memory, and reads the stored reference transmission output level. A control unit that generates the transmission output control signal and outputs a comparison result between the stored reference transmission output level and the stored detection signal level and the stored reference detection signal level to the control data input / output terminal. Prepare.

In addition, a receiver according to the present invention includes an electrically erasable read-only memory for storing a reference reception input level, and a receiving section for detecting a level of a supplied reception signal and generating a reception input signal. Storing the reference reception input level supplied to the control data input / output terminal in the read-only memory, and comparing the result of comparison between the level of the reception input signal with the stored reference reception input level to the control data input / output terminal. And a control unit for outputting to the terminal.

Further, the radio apparatus according to the present invention has a function combining the function of the transmitter and the function of the receiver.

[0008] A measuring and adjusting method for a receiver according to the present invention includes a receiver and a measuring and adjusting device for adjusting and measuring the wireless device. A possible read-only memory, a receiving unit that detects a level of a supplied received signal to generate a received input signal, and stores the reference reception input level supplied to a control data input / output terminal in the read-only memory. A control unit for outputting a comparison result between the level of the reception input signal and the stored reference reception input level to the control data input / output terminal, wherein the measurement adjustment device generates a standard signal for generating the reception signal. And an initial value of the reference reception input level to the control data input / output terminal,
The reference reception input level is updated based on a comparison result between the level of the reception input signal from the control data input / output terminal and the stored reference reception input level, and the updated reference reception input level is controlled. A controller for supplying the data to the data input / output terminal.

According to another aspect of the present invention, there is provided a measurement and adjustment method for a wireless device, comprising: a wireless device; and a measurement and adjustment device for performing measurement and adjustment of the wireless device, wherein the wireless device includes a reference transmission output level, a reference detection signal level, and a reference detection signal level. An electrically erasable read-only memory for storing a reception input level, a transmission unit for outputting a transmission signal of a level corresponding to a transmission output control signal, and detecting a level of the transmission signal to generate a detection signal A detector, a receiving unit that detects a level of a supplied reception signal to generate a reception input signal, and the reference transmission output level, the reference detection signal level, and the reference reception input level supplied to a control data input / output terminal Is stored in the read-only memory and the stored reference transmission output level is read to generate the transmission output control signal. The control data input / output terminal outputs a quasi-transmission output level, a comparison result between the level of the detection signal and the stored reference detection signal level, and a comparison result between the level of the reception input signal and the stored reference reception input level. And a control unit for outputting to the measurement adjustment device,
A power meter for measuring the power of the transmission signal; a standard signal generator for generating the reception signal; and an initial value for each of the reference transmission output level, the reference detection signal level, and the reception input level. The reference transmission output level is supplied to an output terminal, and the reference transmission output level is updated until the measured power of the transmission signal substantially matches the reference transmission output level from the control data input / output terminal. The reference detection signal level is updated based on a comparison result between the level of the detection signal and the stored reference detection signal level, and the level of the reception input signal from the control data input / output terminal and the stored level are stored. The reference reception input level is updated based on a comparison result with the reference reception input level, and the updated reference transmission output level and reference detection level are updated. And a reference reception input level and a controller for supplying to each of the control data input and output terminals.

[0010]

Next, the present invention will be described with reference to the drawings. FIG. 1 is a configuration diagram showing a measurement adjustment method of a wireless device according to an embodiment of the present invention.

The measurement and adjustment method of the radio apparatus shown in FIG. 1 uses the automatic setting of the reference level (reference transmission output level) of the transmission signal S1 and the level (reference reception input level) of the reception input signal S8 corresponding to the reception signal S2 of the reference level. ), A power meter 2 for measuring the transmission power of the transmission signal S1, and a standard signal generator (S) for transmitting the reference level reception signal S2 when the reference reception input level is automatically set.
G) 3 and a controller 4 which is connected to the wireless device 1, the power meter 2 and the SG 3 via a bus and uses a personal computer or the like. The controller 4 controls the start / stop of the power meter 2 and the SG 3, reads the power value of the transmission signal S 1 measured by the power meter 2, sets the level of the reception signal S 2 for the SG 3, and controls the control data S 5 a with the wireless device 1. And S5b. The power meter 2, the SG 3, and the controller 4 constitute a measurement adjustment device of the wireless device 1. The power meter 2 and SG3 are
Regulations stipulate regular calibration so that a standard device of a public organization has traceability, and the power of the transmission signal S1 and the level of the reception signal S8 can be accurately measured and set.

A transmitter 12 in the wireless device 1 modulates a speech signal, a communication control signal and the like to generate a transmission signal S1, which is a high frequency signal. The transmission signal S1 is controlled to a transmission output level corresponding to the voltage of the transmission output control signal S7, which is an analog signal output from the digital-to-analog converter (DAC) 14. This level control is based on the PIN
This is performed by a variable attenuator having a diode or the like as a main element and a signal attenuation amount changing according to an applied voltage.
The transmission signal S1 is a detector 1 using a diode or the like as a detecting element.
3 and the level of the detected signal S6 corresponding to the level of the transmission signal S1 is converted to an analog-to-digital converter (AD
C) It is converted into a digital signal by 15.

The receiver 16 in the wireless device 1 receives the received signal S2, which is a high-frequency signal, and reproduces a call signal and a communication control signal. The receiver 12 detects a reception input level of the reception signal S2 and generates a reception input signal S8. Voltage (level) of this reception input signal S8
Is converted into a digital signal by an analog-to-digital converter (ADC).

The wireless device 1 includes a control unit (C) using a DAC 14, ADCs 15 and 17, a read-only memory (EEPROM) 20, a serial / parallel converter (SPC) 18, and a processor and the like which can be electrically written and erased.
PU) 11 are interconnected by a bus 19. SPC1
Reference numeral 8 denotes parallel data transmitted / received to / from the bus 19 and serial data transmitted / received to / from the controller 4 (control data S
5a and S5b) are mutually serial-parallel converted. The CPU 11 instructs the operation of the connected components.

The EEPROM 20 includes a transmission level table 101, a transmission level monitoring table 102, and a reception level table 103 in addition to a memory for storing a program for controlling the operation of the wireless device 1. In the transmission level table 101, a reference transmission output level (reference level of the transmission signal S1) to be output by the transmitter 12 is set.
In the transmission level monitoring table 102, a reference detection signal level (reference level of the detection signal S6) corresponding to the reference transmission output level is set. A reference reception input level (a reference level of the reception input signal S8) is set in the reception level table 103. The initial values of the reference levels set in these tables 101, 102 and 103 are set by sending the control data S5a from the controller 4 at the time of the initial adjustment before the activation of the wireless device 1. These reference levels can be automatically updated by the control data S5a from the controller 4.

Next, a measurement adjustment procedure for the wireless device 1 will be described.

First, setting and updating of the reference transmission level in the transmission level table 101 will be described with reference to the flowchart shown in FIG.

When the power of the wireless device 1 is turned on (step 11), the CPU 11 reads the initially set reference transmission output level from the table 101 and sends it to the DAC 14.
The DAC 14 converts the received reference transmission output level to an analog value to generate a transmission output control signal S7, and the transmitter 12 transmits the transmission signal S1 corresponding to the voltage of the transmission output control signal S7.
, That is, a desired transmission output level is set (step 12). The power meter 2 measures the power of the transmission signal S1 output from the transmitter 12, and sends this power value to the controller 4 by the data signal S3 (step 13). Then, the controller 4 sends out the control data S5a and requests the CPU 11 to supply the reference transmission output level set in the transmission level table 101. Then, the CPU 11 sends the reference transmission output level to the controller 4 with the control data S5b. The controller 4 compares the transmission signal power supplied by the data signal S3 with the transmitted reference transmission power level (step 14).

If the error of the comparison result is larger than a predetermined expected value (N in step 15), the controller 4 changes the reference transmission output level by a predetermined value in a direction in which the error of the comparison result decreases. The changed reference transmission output level is sent to the SPC 18 on the control data S5a. SPC
18 converts the control data S5a into a parallel signal,
The CPU 11 uses this parallel signal to control the EEPROM O2
The reference transmission output level set in the table 101 of 0 is updated (step 17). The updating of the table 101 is repeated until the error of the comparison result becomes equal to or less than the expected value, that is, until the set value of the reference transmission output level substantially matches the power value of the transmission signal S1 measured by the power meter 2 (step S1). Return to 12). When they are almost the same,
Alternatively, when the error of the comparison result is smaller than a predetermined expected value, the CPU 11 recognizes that the level of the transmission output S1 output from the transmitter 12 is appropriate, and sends the control data S5a indicating the coincidence to the controller 4. (Step 1
5 Y). The controller 4 records the reference transmission output level set in the table 101 of the wireless device 1 (step 1).
6).

Therefore, in this embodiment, since the controller 4 records the reference transmission output level set in the table 101 of the wireless device 1 for each device, it is easy to control the manufacturing quality of a large number of wireless devices 1 manufactured. Can be done.

Next, setting and updating of the reference detection signal level in the transmission level monitoring table 102 will be described with reference to the flowchart of FIG.

The detector 13 extracts a part of the transmission signal S1 and detects it, and outputs a detection signal S6. The level of the detection signal S6 is converted into a digital signal by the ADC 15. When the transmission output level of the wireless device 1 substantially matches the reference transmission output level set in the transmission level table 101 (step 21), the CPU 11 sets the ADC 15
Output signal and transmission level monitoring table 10
2 is compared with the reference detection signal level stored in step 2 (step 22).

If the error of the comparison result is larger than the predetermined expected value (N in step 23), the CPU 11 compares the digital signal output from the ADC 15 with the reference detection signal level set in the transmission level monitoring table 102. Is sent to the controller 4 in the control data S5b. Then, the controller 4 changes the reference detection signal level so that the error of the comparison result becomes equal to or less than the expected value, and transmits the changed reference detection signal level to the SPC 18 on the control data S5a. The SPC 18 converts the control data S5a into a parallel signal, and the CPU 11 updates the reference detection signal level set in the table 102 with the parallel signal (Step 25).

If the error of the comparison result between the reference detection signal level in the table 102 and the level of the detection signal S6 in step 23 is smaller than a predetermined expected value (step 2)
3) and update the reference detection signal level (step 2)
When 5) is completed, the CPU 11 sends control data S5a indicating the coincidence of the reference detection signal level and the level of the detection signal S6 to the controller 4. The controller 4 controls the table 10 of the wireless device 1.
The reference detection signal level set or updated to 2 is recorded (step 24).

Accordingly, since the controller 4 can record the reference detection signal level set in the transmission level monitoring table 102 for each device, it is possible to easily control the manufacturing quality of a large number of wireless devices 1 manufactured. Further, in the wireless device 1, there is no need to adjust the sensitivity of the detector 13 in principle, so that the configuration of the detector 13 can be simplified and the adjustment time is not required.

Note that a calibration table of the transmission output level versus the detection signal level can also be stored in the table 102 in advance. In this case, the CPU 11 changes the calibration table of the transmission output level versus the detection signal level stored in the table 102 using a predetermined calculation formula or an experimental value. During operation of the wireless device 1, the CPU 11 performs maintenance and inspection of the wireless device 1 by comparing the reference detection signal level set in the table 102, and further, the calibration table with the level of the detection signal S7.

Finally, setting and updating of the reference reception input level in the reception level table 103 will be described with reference to the flowchart shown in FIG.

The controller 4 sends a control signal S4 to SG3 to generate a reference level reception signal S2 (step 3).
1). The receiver 16 detects the level of the reception signal S2 with a built-in level detection circuit to generate a reception input signal S8 (step 32). The received input signal S8 is converted into a digital signal by the ADC 17. The CPU 11 compares the digital signal output from the ADC 17 with the reference reception input level stored in the reception level table 103 (step 3).
3).

If the error of the comparison result is larger than the predetermined expected value (N in step 34), the CPU 11 compares the digital signal output from the ADC 17 with the reference reception input level set in the reception level table 103. It is sent to the controller 4 on the control data S5b. Then, the controller 4
Changes the reference reception input level so that the error of the comparison result becomes equal to or less than the expected value, and sends the changed reception input level to the SPC 18 on the control data S5a. SP
C18 converts this control data S5a into a parallel signal, and the CPU 11 uses this parallel signal to
The reference reception input level set to 3 is updated (step 36).

When the error of the comparison result between the reference reception input level of the table 103 in step 34 and the level of the reception input signal S8 is smaller than a predetermined expected value (Y in step 34), and the reference reception input level is updated (step 34). 36), the CPU 11 sets the control data S5 indicating that the reference reception input level matches the level of the reception input signal S8.
a is sent to the controller 4. The controller 4 records the set or updated reference reception input level in the table 103 of the wireless device 1 (step 35).

Accordingly, since the controller 4 can record the reference detection signal level set in the table 103 of the wireless device 1 for each device, it is possible to easily control the manufacturing quality of a large number of wireless devices 1 manufactured. Further, the wireless device 1 can use the received input signal S8 for level determination and monitoring of the received signal S2.

As described above, in the measurement adjustment method of the wireless device 1 according to the present embodiment, the reference transmission output level, the reference detection signal level and the reference reception input level can be updated in accordance with the characteristics of a large number of wireless devices. EEPROM2
By setting to 0, anyone can automatically adjust the transmission output level and set the reference detection signal level and the reference reception input level for monitoring the transmission output level while keeping the configuration of the wireless device 1 simple. This has the effect that it can be performed quickly and accurately, and that each reference level set in the wireless device 1 can be recorded by the controller 4 for each device. In addition, since the wireless device 1 does not need to adjust the gain of the receiver 16 in principle, there is an effect that the configuration of the receiver 16 can be simplified and no gain adjustment time is required.

Although the embodiment of FIG. 1 does not describe the number of reference transmission output levels and reference detection signal levels to be set and the number of reference reception input levels to be set, the number of each level may be singular. It goes without saying that there may be more than one.

The initial values of the reference transmission output level, the reference detection signal level and the reference reception input level are set by the controller 4.
May be stored. This eliminates the need to transfer the initial value of each level from the CPU 11 to the controller 4 when comparing the initial value with the actually measured value.

[0035]

As described above, the present invention provides a transmitter,
The transmission output level control of a receiver or a wireless device including both, a reference detection signal level which is a monitoring reference of the transmission output level, and a reference reception input level which is a monitoring reference of the reception signal are used to measure the transmission output and the reception signal. The level can be updated by a measurement adjustment device, so that the configuration of each of the above devices can be simplified, the transmission output level can be adjusted, and the reference detection signal level and the reference reception input level for monitoring the transmission output level can be set. Can be performed automatically, quickly and accurately by anyone, and the reference level set for each device can be recorded by the measurement adjustment device for each device.

As a result, the present invention makes it possible to easily obtain quality data of a large number of the respective devices by using the above-mentioned measuring and adjusting device, thereby contributing to the improvement of the quality of the respective devices.

[Brief description of the drawings]

FIG. 1 is a configuration diagram showing a measurement adjustment method of a wireless device according to an embodiment of the present invention.

FIG. 2 is a transmission level table 10 according to the embodiment.
7 is a flowchart illustrating a flow of setting and updating a reference transmission level to 1.

FIG. 3 is a flowchart illustrating a flow of setting and updating a reference detection signal level in a transmission level monitoring table 102 according to the present embodiment.

FIG. 4 is a reception level table 10 according to the embodiment.
6 is a flowchart for explaining the flow of setting and updating the reference reception input level to No. 2;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Radio apparatus 2 Power meter 3 Standard signal generator (SG) 4 Controller 11 Control part (CPU) 12 Transmitter 13 Detector 14 Digital-to-analog converter (DAC) 15, 17 Analog-to-digital converter (ADC) 16 Receiver Reference Signs List 18 serial-parallel converter (SPC) 19 bus 20 read-only memory (EEPROM) 101 transmission level table 102 transmission level monitoring table 103 reception level table

Claims (5)

(57) [Claims] 1. An electrically erasable read-only memory for storing a reference transmission output level and a reference detection signal level, a transmission unit for outputting a transmission signal of a level corresponding to a transmission output control signal, and the transmission unit. A detector for detecting a signal level to generate a detection signal; and storing the reference transmission output level and the reference detection signal level supplied to a control data input / output terminal in the read-only memory and storing the reference transmission signal. An output level is read to generate the transmission output control signal, and a comparison result between the stored reference transmission output level and the detected detection signal level and the stored reference detection signal level is output to the control data input / output terminal. A transmitter comprising: 2. An electrically erasable read-only memory for storing a reference reception input level, a receiving section for detecting a level of a supplied reception signal to generate a reception input signal, and a control data input / output terminal. A control unit that stores the supplied reference reception input level in the read-only memory, and outputs a comparison result between the level of the reception input signal and the stored reference reception input level to the control data input / output terminal; A receiver comprising: 3. An electrically erasable read-only memory for storing a reference transmission output level, a reference detection signal level, and a reference reception input level, and a transmission for outputting a transmission signal of a level corresponding to the transmission output control signal. Unit, a detector that detects the level of the transmission signal to generate a detection signal, a reception unit that detects the level of the supplied reception signal to generate a reception input signal, and the control unit that is supplied to a control data input / output terminal. A reference transmission output level, the reference detection signal level, and the reference reception input level are stored in the read-only memory, and the stored reference transmission output level is read to generate the transmission output control signal. A transmission output level, a comparison result of comparing the level of the detection signal with the stored reference detection signal level, and a level of the reception input signal. A wireless device, comprising: a control unit that outputs a comparison result between a bell and the stored reference reception input level to the control data input / output terminal. 4. An electronically erasable read-only memory for storing a reference reception input level, comprising: a receiver; and a measurement adjustment device for performing measurement adjustment of the wireless device. A receiving unit that detects a level of a received signal to generate a received input signal, stores the reference received input level supplied to a control data input / output terminal in the read-only memory, and stores the level of the received input signal. A control unit that outputs a comparison result with the reference reception input level to the control data input / output terminal, wherein the measurement adjustment device generates a reception signal, a standard signal generator, and the reference reception input level. An initial value is supplied to the control data input / output terminal, and a comparison result between the level of the reception input signal from the control data input / output terminal and the stored reference reception input level is stored. Based updating the reference receiver input level, the measurement adjustment method of a receiver, characterized in that it comprises a controller for supplying the updated reference received input level to the control data input and output terminals. 5. An electric writing device comprising: a wireless device; and a measurement adjustment device for performing measurement adjustment of the wireless device, wherein the wireless device stores a reference transmission output level, a reference detection signal level, and a reference reception input level. An erasable read-only memory, a transmission unit that outputs a transmission signal at a level corresponding to a transmission output control signal, a detector that detects a level of the transmission signal to generate a detection signal, A receiving unit that detects a level to generate a reception input signal, and stores and stores the reference transmission output level, the reference detection signal level, and the reference reception input level supplied to a control data input / output terminal in the read-only memory. Reading the stored reference transmission output level to generate the transmission output control signal; and storing the stored reference transmission output level and the level of the detection signal. A control unit that outputs, to the control data input / output terminal, a comparison result of the stored reference detection signal level and a comparison result of the received input signal level and the stored reference reception input level, wherein the measurement is performed. An adjusting device for measuring a power of the transmission signal; a standard signal generator for generating the reception signal; and an initial value of each of the reference transmission output level, the reference detection signal level, and the reception input level. Supplying the control data input / output terminal and updating the reference transmission output level until the measured power of the transmission signal substantially matches the reference transmission output level from the control data input / output terminal; Updating the reference detection signal level based on a comparison result between the level of the detection signal from the input / output terminal and the stored reference detection signal level; The reference reception input level is updated based on a comparison result between the level of the reception input signal from the control data input / output terminal and the stored reference reception input level, and the updated reference transmission output level and reference detection are updated. A controller for supplying a level and a reference reception input level to the control data input / output terminal, respectively.