JP2003338799A - Test server for technical standard conformance, software radio device, and technical standard conformance test method of the software radio device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To carry out technical standard conformance tests, in order to obtain technical standard conformance certification, in a condition a software radio device is mounted on a vehicle, which is possible to be used for plural communication systems by downloading and using a software radio module corresponding to the radio system to be used. <P>SOLUTION: The vehicle 350, which mounts a software radio communication device that can change-over communication systems to be used by changing over the software radio module to be used, is mode to stop at a specified position in a shielding room 330. The software radio communication device notifies the transmission loss information between an antenna of the vehicle 340 at this position and an antenna for test 335 to a base station 315 and a tasting device 318; and the base station 315 and the testing device 318, carry out the technical standard conformance test for the software radio communication device, using the transmission loss information. <P>COPYRIGHT: (C)2004,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a software defined radio capable of switching a communication system to be used by switching a software defined radio module, a technical standard conformance test device for performing a technical standard conformance test of this software defined radio, and The present invention relates to a method of performing a technical standard conformance test of this software defined radio using a technical standard conformity test apparatus.

[0002]

2. Description of the Related Art Conventionally, a wireless communication device as a product is manufactured,
In order to sell, inspect whether the product complies with the technical standards established by the country or the technical conditions of the telecommunications carrier,
A certification body must be certified to conform to the technical standards, which is to certify products that meet the standards. In order to receive this technical standard conformity certification, every time a new product is made, a part or all of the product is brought to the relevant certification body, and the technical standard and It is necessary to undergo an inspection to determine whether or not the technical conditions are met, that is, a technical standard conformance test, and to pass this technical standard conformance test.

Further, in recent years, the software radio communication device is being developed so that the function of the radio communication device can be changed only by changing the software defined radio module so as to be compatible with different communication systems. In such a software defined radio, a software defined module corresponding to a communication system to be used may be downloaded and used as needed. In addition, a software defined radio module for a communication system, which was not supposed to be supported at the time of manufacturing the wireless communication device, was developed after the manufacturing, and this software defined module was downloaded and used by the software defined communication device already installed in the vehicle. It is possible to be done.

[0004]

However, when a newly developed software defined radio module is used for this communication system which was not originally intended, the software defined radio is used. The communication device will have to undergo the technical standard conformance test again.

In that case, the radio communication device already mounted on the vehicle is removed and brought to the certification body for a technical standard conformance test, or the whole vehicle is brought to the certification body and the antenna is very difficult to remove. -Because it is necessary to remove the wireless cable between the wireless communication devices and connect the measuring wireless cable for inspection, the work of the technical standard conformance test becomes very complicated.

In view of the above points, according to the present invention, a software defined radio capable of using a plurality of communication systems is installed in a vehicle by downloading and using a software defined radio module corresponding to the communication system to be used. The purpose is to be able to take the technical standard conformance test as it is.

[0007]

In order to achieve the above object, the invention according to claim 1 is a software defined radio installed in a vehicle, wherein communication is performed by switching a software defined radio module to be used. It is located at the specified position for the technical standard conformity test facility equipped with the communication system switching means capable of switching the system and the antenna used for the technical standard conformance test for the use of the new communication system of the software defined radio. A memory for recording the propagation loss information of the radio wave from the software radio when the vehicle is stopped, from the time it is transmitted until it is received by the antenna, and the propagation loss during the technical standard compliance test. From the received power level of the signal received from the software defined radio using the information in Software transmission device, the transmission power level when it is transmitted is obtained, and using this transmission power level, the technical standard conformance testing device that conducts the technical standard conformity test by wireless communication with the software defined radio using the antenna, A software defined radio including: a propagation loss information transmission means for notifying the information of the propagation loss recorded in the memory.

As a result, when performing the technical standard conformance test using the technical standard conformity testing device for the software defined radio which can switch the software defined radio module to be used by the communication system switching means to switch the communication system to be used. Since the propagation loss information transmitting means can notify the technical standard conformance testing device of the propagation loss information recorded in the memory, the technical standard conformance testing device uses the propagation loss information to conform to the technical standard. For the test, the output level of the software defined radio installed in the vehicle where the concerned vehicle is stopped at the specified position with respect to the technical standard conformance test facility can be detected. You can take the technical standard conformance test as it is.

The invention described in claim 2 is the same as claim 1.
The software defined radio described in (1) is characterized by including an authentication key receiving means for receiving an authentication key, which is information notifying that the technical standard conformance test has passed by wireless communication, from the technical standard conformance test apparatus.

According to a third aspect of the present invention, a new communication of the software defined radio is performed by performing wireless communication with the software defined radio that can switch the communication system used by changing the software defined module used. A technical standard conformance test device that performs a technical standard conformity test for the use of the system, and the vehicle equipped with this software defined radio specifies the technical standard conformance test facility equipped with an antenna used for wireless communication. Propagation loss information receiving means for receiving from the software radio the propagation loss information of the radio wave from the software radio when it is stopped at the position When performing a technical standard conformance test of a vehicle stopped at a specified position with respect to the test facility, Propagation loss that is used to determine the carrying power information from the received power level of the signal received from the software radio to determine the transmission power level when the received signal is transmitted from the software radio, which is required in the technical standard conformance test. The technical standard conformity testing device is characterized by comprising: information use means.

As a result, when the technical standard conformance test is performed on the software defined radio by using the technical standard conformity test apparatus, the propagation loss information receiving means receives the propagation loss information from the software defined radio and propagates it. From the power level of the signal that the loss information using means receives from the software defined radio, it is used to determine the power level when the received signal is transmitted from the software defined radio.
The technical standard compliance test equipment uses this propagation loss information to output the software defined radio installed in the vehicle where the relevant vehicle has stopped at the specified position to the technical standard compliance test facility for the technical standard compliance test. Since the level can be detected, the software defined radio can be subjected to the technical standard compliance test while being mounted on the vehicle.

The invention according to claim 4 is the same as claim 3
In order to communicate with the technical standard conformity certification body to judge whether the software defined radio has passed the technical standard conformity test based on the result of the technical standard conformity test, A connecting means for connecting to the network to which the certification body is connected; and a test result transmitting means for transmitting the result of the technical standard conformance test of the software defined radio to the technical standard conforming certification body via the network,
Receives the authentication key, which is the information indicating that the technical standard conformance test has passed, which is returned from the technical standard conformity certification body based on the transmitted test result, and transmits the received authentication key to the software defined radio by wireless communication. And an authentication key transmitting means.

The invention described in claim 5 is the same as claim 1.
A vehicle equipped with the software defined radio according to claim 3 is stopped at a prescribed position with respect to a technical standard conformity test facility equipped with an antenna used by the technical standard conformity test apparatus according to claim 3 for a technical standard conformance test. The procedure to make, the procedure to notify the propagation loss information from the software radio to the technical standard conformance test device, the technical standard conformance test device, the propagation loss information, from the received power level of the signal received from the software radio, Technical standard conformity test equipped with the procedure for performing the technical conformity test of the software defined radio, which is used to determine the transmission power level when the received signal required for the technical standard conformance test is transmitted from the software defined radio. It is a test method.

As described above, by stopping the vehicle at the specified position and notifying the technical standard conformance test device of the propagation loss information from the software defined radio, the technical standard conformance test device uses the propagation loss information. Then, for the technical standard conformance test, the output level of the software defined radio installed in the vehicle where the concerned vehicle has stopped at the specified position can be detected with respect to the technical standard conformance test facility. , You can take the technical standard conformance test while it is mounted on the vehicle.

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 shows an overall configuration diagram of a technical standard conformance test system according to an embodiment of the present invention. This technical standard conformance test system is a car dealer 31 including a base station 315, an inspection device 318, and a shield room 330.
0, a base station 315 is connected to an Internet network 320 via a base station network (not shown), and a technical standard conforming certification body 325 connected to the Internet network 320. With such a technical standard conformance test system,
A technical standard conformance test of the wireless communication device mounted on the vehicle 350 is performed.

The shield chamber 330 prevents the electromagnetic waves emitted inside the shield chamber 330 from propagating to the outside and prevents the electromagnetic waves propagating outside from entering the inside of the shield chamber 330. The room consists of a ceiling and a ceiling. The vehicle 350 can enter and stop at a predetermined position in this room. The shield room 330 emits an electric signal output from the base station 315 into the shield room 330 as a radio wave inside the shield room 330, and converts the radio wave emitted from the vehicle 350 in the shield room 330 into an electric signal to convert the electric wave to the base station. It has a technique application antenna 335 which outputs to 315.

The technical standard conforming certification body 325 is a server of the technical standard conforming certification body connected to the Internet 320. This technical standard conformity certification body 325
A result of a technical standard conformance test, which will be described later, is received from the base station 315 via the Internet 320, and it is determined whether or not the result conforms to a prescribed standard, that is, whether the technical standard conformance test passes. Has become.

The technical standard conforming certification body 325 is
When it is determined that the received result of the technical standard conformance test conforms to the specified standard, that is, that is, the technical standard conformance test is passed, the authentication key is transmitted to the base station 315. It is like this. The authentication key is data in which the data of the identifier of the software defined radio 352 and the name of the software defined module is electronically signed by the technical standard conforming certification authority 325. In the present embodiment, a public key cryptosystem is used as a digital signature method. Specific software for digital signatures using public key cryptography is, for example, GPG (GNU Privacy).
Guard) is used. The public key for confirming the legitimacy of the signature is publicly distributed in advance.

FIG. 3 is a configuration diagram of devices in the vehicle 350 according to this embodiment. The vehicle 350 has a vehicle antenna 34.
0, software defined radio 352, wireless switch 356,
Navigation system 353, ETC receiver 361,
It has a keyless entry device 362, a Bluetooth communication device 363, and an audio device 364.

The navigation system 353 is a GPS
GP that acquires its own current position information through communication with satellites
It has an S receiver (not shown) and stores map information in its own memory (not shown). The navigation system 353 displays the position of the vehicle 350 on the map on a display device (not shown) based on the current position information and the map information.

The ETC receiver 361 is an ETC (Electron
ic Toll Collection System) is a receiver installed in the vehicle 350 for an automatic road charge collection system.

The keyless entry device 362 is used for the vehicle 35.
0 is a device that receives a lock / unlock control command for the door of the vehicle 350 from a wireless communication device carried by a user of 0 and controls the lock / unlock of the door of the vehicle 350 based on the command.

The Bluetooth communication device 363 is Bl
It is a communication device for configuring an in-vehicle wireless network based on Bluetooth.

The audio device 364 is a device for listening to music such as radio, CD, MD in the vehicle 350.

The vehicle battery 354 supplies power to the software defined radio 352 directly. The vehicle battery 354 is also connected to the navigation system 353 and the ETC receiver 36 via the wireless switch 356.
1, keyless entry device 362, Bluetooth
Power is supplied to the communication device 363 and the audio device 364.

The wireless switch 356 is used for the vehicle battery 3
54 to navigation system 353, ETC receiver 361, keyless entry device 362, Bluetooth
A switch for switching on and off of power supply to the th communication device 363 and the audio device 364. The wireless switch 356 has a switch antenna 357 that receives a radio wave and converts it into a radio signal. In addition, the wireless switch 356 is a switch antenna 35.
A control signal from the software defined radio 352 is received via the control unit 7 and connection / disconnection of the power supply line is switched according to the control signal. By doing so, for example, in a technical standard conformance test to be described later, communication waves or leakage waves are transmitted from the navigation system 353, the ETC receiver 361, the keyless entry device 362, the Bluetooth communication device 363, and the audio device 364 to the outside of the vehicle. When it is not desired to release the radio waves, the operation of these devices can be stopped by switching the wireless switch 356.

The software defined radio 352 reads and executes a different software defined module for each communication system to be used, so that it does not have a plurality of hardware for communication specialized for a particular communication system.
It is a wireless device that can switch and use a plurality of communication systems. In the present embodiment, the software defined radio 352 can perform communication by cdma2000, and this time, a technical standard conformance test for newly using a software defined radio module compatible with W-CDMA is performed. ing. cdma2000 and W-CDMA are IMT2000 standard 1 respectively.
Is one. The software defined radio 352 operates by receiving power directly from the vehicle battery 354.

FIG. 2 shows the configuration of the software defined radio 352 as a block diagram. This software radio 352 includes an antenna connector 114 and an integrated radio unit 11.
5, baseband signal processing section 120, software defined radio function realizing means 130, arithmetic processing section 140, memory 15
0, an image display unit 160, and an operation unit 170.

The antenna connector 114 is a connector to which an external antenna or cable can be connected.
The antenna connector 114 is the antenna connector 11
The signal from the antenna or cable connected to No. 4 is output to the antenna duplexer 113, and the signal from the antenna duplexer 113 is output to this antenna or cable. The vehicle antenna 340 is usually connected to the antenna connector 114, but the vehicle antenna 34
It is also possible to remove 0 and connect the cable. An example of connecting a cable is an inspection at the time of installing the software defined radio 352, which will be described later, in the vehicle 350.

The integrated radio section 115 comprises a transmitting section 111, a receiving section 112 and an antenna duplexer 113.
The integrated wireless unit 115 includes a baseband signal processing unit 12
The IF signal for wireless transmission output from 0 is frequency-converted, filtered, and amplified by the transmission unit 111, and this signal is output to the vehicle antenna 340 via the antenna duplexer 113 and the antenna connector 114. Has become. Further, the integrated radio unit 115 receives a radio signal from the vehicle antenna 340 via the antenna connector 114 and the antenna duplexer 113, amplifies, frequency converts, and filters this signal in the reception unit 112, and uses this as an IF signal. Baseband signal processing unit 12
It is designed to output to 0. In the present embodiment, the integrated wireless unit 115 can be used in the band used in IMT2000.

The baseband signal processing section 120 performs processing such as demodulation, rearrangement, decompression, and decoding on the signals received from the integrated radio section 115 according to a procedure determined by the integrated radio section 115 so that the arithmetic processing section 140 can process them. After being converted into the received data in the format, it is output to the arithmetic processing unit 140. In addition, the baseband signal processing unit 120 rearranges the transmission data output from the arithmetic processing unit 140,
It performs processing such as compression, encoding, and modulation, generates data according to an instruction from the arithmetic processing unit 140, modulates the data, and outputs the modulated IF signal to the transmission unit 111 according to a predetermined procedure. is there.

Further, the baseband signal processing unit 120 receives modulation / demodulation, data rearrangement, compression, decompression, encoding, decoding from the software defined radio function implementing means 130.
Receives control signals for switching methods such as transmission / reception procedures, and performs modulation / demodulation, data rearrangement based on this control signal,
It is possible to switch between compression, decompression, encoding, decoding and other methods.

The software defined radio function implementing means 130
It is a programmable control device that can change its operation by receiving a control signal from the arithmetic processing unit 140. In the present embodiment, the software defined radio function implementing means 130 is composed of an FPGA. The software defined radio function implementation unit 130 is a control device that outputs a control signal to the baseband signal processing unit 120 in order to implement wireless communication in the communication system used by the software defined radio 352. The software defined radio function implementing unit 130 outputs a control signal to the baseband signal processing unit 120 to perform modulation / demodulation of the baseband signal processing unit 120, data rearrangement, compression, expansion, encoding, decoding, and transmission / reception procedure. It is adapted to switch to a protocol of a communication system using the above method.

The image display unit 160 is a device for displaying an image under the control of the arithmetic processing unit 140.

The operation unit 170 is a user interface device that receives an operation by a user in the vehicle and outputs an input signal to the arithmetic processing unit 140 based on the operation.

The memory 150 is a software defined radio 35.
2 is an apparatus capable of recording information such as various software and data for use in 2. The memory 150 includes a software defined module storage section 153 for recording a software defined module for use by the arithmetic processing section 140, an authentication key and an authentication key storage section 1 for storing a public key for confirming the authenticity of the authentication key.
54, and an inspection data storage unit 155.

The software defined radio module is a program to be loaded and executed by the arithmetic processing unit 140. The arithmetic processing unit 140 executes one software defined radio module, and based on that, the arithmetic processing unit 140 transmits a control signal to the software defined radio function realizing means 130, and the software defined radio function realizing means 130.
By switching the operation of, the wireless communication in the communication system supported by this software defined radio module is enabled in the software defined radio 352. This software defined radio module is used for modulation / demodulation of the baseband signal processing unit 120 in a corresponding communication system,
It includes information on methods such as data rearrangement, compression, decompression, encoding, decoding, and transmission / reception procedures. Arithmetic processing unit 1 for executing such a software defined module
40 controls the software defined radio function implementing means 130 to regulate its operation, and the defined software radio function implementing means 130 controls the operation of the baseband signal processing section 120, so that the software defined radio module is compatible. The software defined radio 352 can perform the communication in the communication system.

The authentication key is the information that the technical standard conformity certification body 325 becomes effective in order to allow the software defined radio 352 to use one software defined module at normal times. One software defined module corresponds to one authentication key.

The inspection data means the shield room 33.
When the vehicle 350 is stopped at the specified position within 0,
This data includes data representing the power loss level due to the propagation of the radio wave when the radio wave output from the vehicle antenna 340 is received by the technique application antenna 335, that is, the propagation loss for a plurality of frequencies. The prescribed position can be specified by, for example, a line drawn on the floor of the shielded room 330 to meet the leading portions of the vehicles 350. However, this prescribed position does not have to be a strict position, and may be displaced within a range that does not significantly affect the technical compatibility test described later. FIG. 4 is a table showing an example of this inspection data. From this table, for example, a radio wave of 820 MHz is transmitted from the vehicle antenna 340 and the technique application antenna 33
It can be seen that there is a loss of 15 dB before being received at 5.

The arithmetic processing unit 140 is a processing device that loads software for operation from the memory 150 and executes processing for communication based on the loaded software. In this communication processing, the arithmetic processing unit 140 generates transmission data for wireless transmission as necessary for the processing, and outputs the generated transmission data to the baseband signal processing unit 120. The arithmetic processing unit 140 also receives the received data from the baseband signal processing unit 120, and performs processing on the received data based on the software being executed.

Further, the arithmetic processing section 140 outputs a control signal to the image display section 160 if necessary in this communication processing, thereby causing the image display section 160 to display an image. In the communication process, the arithmetic processing unit 140 receives a signal from the operation unit 170 to receive information input and control for wireless communication from the user in the vehicle.

Further, the arithmetic processing section 140 records information in the memory 150 and reads information from the memory 150 as needed for processing. For example, the arithmetic processing unit 140 reads the inspection data from the inspection data storage unit 155 if necessary in this communication process. Further, for example, when the arithmetic processing unit 140 receives the authentication key via the vehicle antenna 340, the integrated wireless unit 115, and the baseband signal processing unit 120, the arithmetic processing unit 140 records the authentication key in the authentication key storage unit 154. Further, for example, when the use of a certain communication system is started, the software defined radio module storage unit 1
The software defined radio module corresponding to the communication system is loaded from 53, and it is checked whether or not the authentication key corresponding to this software defined module exists in the software defined module storage unit 153. Run the wireless module.

Further, upon receiving a predetermined signal from the baseband signal processing unit 120, the arithmetic processing unit 140 shifts its operation state to the test mode. In this test mode, the arithmetic processing unit 140 operates based on the control signal received from the baseband signal processing unit 120. For example, if the control signal specifies to transmit a signal of a specific frequency at a specific output power level, the control signal to the baseband signal processing unit 120 to transmit the signal at the specified frequency and output power level. And output the data. Further, if the control signal specifies to repeat connection / disconnection to / from the base station, the control signal and data are output to the baseband signal processing unit 120 to repeat connection / disconnection to / from the base station according to the specification. In this test mode, the arithmetic processing unit 140
It is possible to use software defined radio modules that do not have a corresponding authentication key.

Software defined radio 3 having the above configuration
In 52, when performing radio reception by the communication system corresponding to the software defined radio module executed by the arithmetic processing unit 140, first, the radio wave received by the vehicle antenna 340 is converted into an electric signal, which is then used by the antenna duplexer 113. To the receiving unit 112, the receiving unit 112 demodulates, amplifies, and filters the received signal and outputs the signal to the baseband signal processing unit 120. The baseband signal processing unit 120 outputs the received signal. Then, the data generated by performing processing such as demodulation, rearrangement, expansion, and decoding is output to the arithmetic processing unit 140, and the arithmetic processing unit 140 processes the received data based on the software being executed. Further, when the software defined radio 352 performs wireless transmission, transmission data is generated based on the software executed by the arithmetic processing unit 140 and is output to the baseband signal processing unit 120. 120 is a sort, compression,
A signal generated by performing processing such as decoding and modulation is output to the transmission unit 111, the transmission unit 111 performs frequency conversion, amplification, and filtering of this signal, and the signal is transmitted to the vehicle antenna 340 via the antenna duplexer 113. Then, the vehicle antenna 340 converts the received signal into a radio wave and emits it.

In this embodiment, the software defined radio 352 communicates wirelessly with the base station 315 and the inspection device 318, and also transmits wirelessly to the switch antenna 357.

FIG. 5 shows the base station 315 and the inspection device 31.
8 is a block diagram showing a configuration of No. 8. The base station 315 includes a reception antenna 411, a transmission antenna 412, and a transmission / reception unit 41.
3, control unit 414, network interface 41
5 and an operation unit 416. Base station 315
Is installed on the rooftop of the car dealer's 310 building and communicates with surrounding wireless terminals. This base station 31
5 corresponds to the communication system of cdma2000 and W-CDMA. The inspection device 318 includes the antenna switch 42.
1, a spectrum analyzer 422, a demultiplexer 423, a termination switch 424, a termination device 425, an attenuator 426, an attenuator 427, and a technique application connector 428.
The inspection device 318 includes the base station 315 and the technique application antenna 33.
5 is a device for relaying a signal exchange with the device 5 and for investigating a spelltle distribution of a signal from the technique application antenna 335.

The receiving antenna 411 is an antenna that receives radio waves from surrounding wireless terminals, converts the received radio waves into an electric signal, and outputs the electric signal to the transmission / reception unit 413 and the attenuator 426. The transmitting antenna 412 is an antenna that converts the electric signal output from the transmitting / receiving unit 413 into a radio wave and emits the electric wave.

The transmitting / receiving unit 413 performs processing such as frequency conversion, filtering, demodulation, etc. on the electric signal received from the receiving antenna 411 or the attenuator 426, restores it to a baseband signal, and outputs it to the control unit 414. .
The transmission / reception unit 413 receives the baseband signal output from the control unit 414, performs processing such as modulation, frequency conversion, and filtering on the baseband signal, and outputs the baseband signal to the transmission antenna 412 and the attenuator 427. Is. Further, the transmission / reception unit 413 detects the power level of the electric signal received from the reception antenna 411 or the attenuator 426, and notifies the control unit 414 of the value as the electric signal.

The control unit 414 is a device that receives a baseband signal from the transmission / reception unit 413 and performs various processes such as generation of reply data for the received signal and transfer of the received data to the Internet 320. In addition, the control unit 41
4 can communicate with the base station network and the Internet 320 via the network interface 415. Further, the control unit 414 controls the attenuator 426 and the attenuator 427 to control the attenuation level of the attenuator. Further, the control unit 414 can receive the signal level value of the desired frequency component of the signal received by the spectrum analyzer 422 from the spectrum analyzer 422 by controlling the spectrum analyzer 422. In addition, the control unit 41
4 is an antenna switch 421 and a termination switch 42.
4 switching is controlled. Further, the control unit 414 can receive a control signal from the operation unit 416 and operate based on the control signal.

The network interface 415 is
In order to realize communication between the control unit 414 and the base station network and the Internet 320, processing such as address acquisition and data transfer timing control is performed, and the control unit 414 and the base station network
It relays communication with the Internet 320.

The operation unit 416 is an input device that can be operated by an operator who uses the base station 315 to transmit a control signal based on the operation to the control unit 414.

The attenuator 426 is a device that attenuates the level of the signal output from the demultiplexer 423 and outputs the attenuated signal to the transmitting / receiving unit 413 and the receiving antenna 411. This attenuator 4
26 is capable of changing the attenuation level under the control of the control unit 414. In this embodiment, a variable resistor is used as the attenuator 426.

The attenuator 427 is a device that attenuates the level of the signal output from the transmission / reception unit 413 and outputs it to the terminal switch 424. The attenuator 427 is provided in the control unit 41.
The control of 4 can change the level of attenuation. In the present embodiment, the attenuator 42
A variable resistor is used as 7.

The termination switch 424 controls the signal from the attenuator 427 based on the control signal from the control unit 414.
It is a device that switches between which of 5 and the demultiplexer 423 is output.

The antenna switch 421 has a control section 414.
Based on the control signal of the
This is a device for switching between connection with the H.23 or the spectrum analyzer 422.

The spectrum analyzer 422 is a device for detecting the spectral distribution of the signal received from the antenna switch 421. This spectrum analyzer 42
2 receives the control signal from the control unit 414, and based on the received control signal, sets the signal level of the specific frequency component of the signal received from the antenna switch 421 to the control unit 41.
4 will be notified.

The demultiplexer 423 is a device for outputting the signal received from the attenuator 426 to the antenna switch 421 and outputting the signal received from the antenna switch 421 to the terminal switch 424.

The technique application connector 428 is a connector to which an antenna or a cable can be connected. The technique application connector 428 outputs signals from the antenna and cable connected to the technique application connector 428 to the antenna switch 421, and outputs signals from the antenna switch 421 to the antenna and cable. . Although the normal technique applying antenna 335 is connected to the technique applying connector 428, this technique applying antenna 335 is used.
You can also remove and connect the cable. An example of connecting a cable is an inspection at the time of installing the software defined radio 352, which will be described later, in the vehicle 350.

In the base station 315 and the inspection device 318 having the above-described configurations, when the technical standard conformance test is performed, the terminal switch 424 includes the demultiplexer 423 and the attenuator 42.
It has been switched so that 7 and 7 are connected. In addition, when the technical standard conformance test is not performed and the normal communication between the base station 315 and the terminal using the reception antenna 411 and the transmission antenna 412 is performed, the termination switch 424 includes the terminator 425 and the attenuator 427. Switching to connect. With this configuration, it is possible to prevent a transmission signal during normal communication from being output from the technique application antenna 335 or the cable via the technique application connector 428.

Further, in the technical standard conformance test, when the technique application connector 428 and the duplexer 423 are switched to be connected by the antenna switch 421, the technique application antenna 335 connected to the technique application connector 428 is connected. Alternatively, the signal from the cable is received by the transmission / reception unit 413 via the demultiplexer 423 and the attenuator 426, and the transmission / reception unit 413 performs processing such as frequency conversion, filtering, and demodulation on the received signal. Transmitting the generated baseband signal to the control unit 414,
The control unit 414 receives this baseband signal. At this time, the baseband signal for transmission generated in the control unit 414 is output to the transmission / reception unit 413, and the transmission / reception unit 413 performs processing such as modulation, filtering, and frequency conversion on the baseband signal. The transmission signal generated by the processing is applied to the attenuator 427 and the demultiplexer 423.
To the technique application antenna 335 or a cable via the.

Further, in the technical standard conformance test, when the technique application connector 428 and the spectrum analyzer 422 are switched to be connected by the antenna switch 421, the technique application antenna 335 or the technique application antenna 335 connected to the technique application connector 428 or The signal from the cable is received by the spectrum analyzer 422, and the spectrum analyzer 422 detects the spectrum distribution of the received signal according to the control signal from the control unit 414, and outputs the result to the control unit 414.

When the cable is connected to the technique application connector 428, the control unit 414 increases the attenuation level of the attenuators 426 and 427,
When the technique application antenna 335 is connected to the technique application connector 428, the control unit 414 controls the attenuator 426.
And the level of attenuation of the attenuator 427 is reduced. This can prevent excessive power from being output to the cable connected to the technique application connector 428. It should be noted that detection of whether the technique application antenna 335 or the cable is connected to the technique application connector 428 is detected by
The operation is performed by the operator's input from the operation unit 416.

The above is the configuration of the technical standard conformance test system.

In the technical standard conformance test system according to the present embodiment, the software defined radio 352 mounted on the vehicle 350 as described above can use the defined software defined module for a new communication system. A technical standard conformance test of the software defined radio 352 when this software defined module is used is performed.

The technical standard conformance test is a test for judging whether or not the wireless communication device complies with the technical standard established by the country or the like and the technical condition of the communication carrier. In order to manufacture and sell a wireless communication device as a product, it is required to certify that the product has passed this technical standard conformance test and that this wireless communication device satisfies the standard, that is, technical standard conformity certification. Must be obtained from the certification body of. In Japan, the standard for certification of conformity with technical standards is established by the Ministry of Internal Affairs and Communications, and also the organization for performing technical standard conformance testing and certification of technical standard conformance is designated by the Ministry of Internal Affairs and Communications.

Specific contents of the technical standard conformance test of the wireless communication device are as follows, for example. One is an inspection as to whether or not the maximum transmission power is within a specified range (for example, within ± 3 dB from a reference value) at some frequencies in a frequency band used by a communication system used by a wireless communication device ( Hereinafter, it is referred to as a maximum power inspection).

Further, in each frequency described above, when the wireless communication device is set so as to reduce the transmission power from the maximum value by a specific amount (for example, 12 dB), the actual transmission power is within the specified range from the set value. (Eg ± 3dB)
There is an inspection (hereinafter, referred to as a power control inspection) for determining whether or not there is.

When the radio communication device is set to output radio waves at a certain frequency, the frequency of the actual transmission radio wave is within a specified range from the set value (for example, 5
There is an inspection (hereinafter referred to as frequency deviation inspection) for determining whether or not it is within ppm.

Further, when the radio communication device is set to output radio waves at a certain frequency, a test for determining whether or not noise of a frequency such as an integral multiple of the set frequency, that is, spurious is below a specified value. (Hereinafter referred to as spurious inspection).

Also, when the wireless communication device is in the receiving state, an inspection for determining whether or not the power of unwanted secondary emission of radio waves from the antenna of the wireless communication device is below a specified value (for example, -54 dBm) (Hereafter, there is a secondary emission inspection).

Further, whether the frequency of connection failure is less than or equal to a specified value by repeating a procedure of actual connection such as location registration with a wireless communication base station or a device having a function of a pseudo base station a plurality of times. There is an inspection (hereinafter referred to as a connection inspection) for determining whether or not.

The specified range, value, and frequency used for these inspections are predetermined. The base station 315 records these ranges, values, and frequencies in its own memory (not shown), and the control unit 4
14 can refer to these as needed.

In these inspections, a device for inspecting the wireless communication device, for example, the base station 315 and the inspection device 318 in this embodiment, wirelessly sends a control signal to notify the wireless communication device to enter the test mode. Then, the wireless communication device that receives it starts by entering the test mode. The test mode is one of the operating states of the wireless communication device, and it is possible to use functions that cannot be executed normally, such as changing the power and frequency of the radio wave output according to the wireless control signal from the outside. It is a state of becoming. The wireless communication device that has entered the test mode can receive the above-described test by operating in accordance with a control signal transmitted by the device that performs the test wirelessly. As one of the functions of the software defined radio 352 in the test mode, for example, a signal requesting the information of the propagation loss recorded in the inspection data storage unit 155 is received from the outside, and the propagation loss is requested according to the signal. There is a function to send. In the present embodiment, when the arithmetic processing unit 140 of the software defined radio 352 receives a predetermined signal and shifts to the test mode, the software defined radio 352 enters the test mode as described above.

In order to receive such technical standard conformity certification, every time a new product is produced, a part or all of the product is brought to the certification body and the technical standards are set in the laboratory of the certification body. Take a conformance test,
It is conventionally necessary to pass.

However, since the software-defined radio 352 is already installed in the vehicle 350, very complicated work is required to remove the software-defined radio 352 from the vehicle 350 and bring it to the certification body. Therefore, in the present embodiment, the vehicle 350 is stopped at a specified position in the shield room 330 installed in the car dealer 310 so that the vehicle antenna 340 and the technique application antenna 335 have a specified positional relationship. To do. And
In this state, the base station 315 and the inspection device 318 perform the technical standard conformance test of the software defined radio 352 via the technique applying antenna 335.

A problem in such a technical standard conformance test is that the environment of radio wave propagation around the antenna, such as the mounting position of the vehicle antenna 340, the shape of the vehicle, the installation status of metal accessories, etc., depends on the vehicle. It is different. Therefore, even if the vehicle stops at the prescribed position in the shield room 330, the propagation loss between the vehicle antenna 340 and the technique application antenna 335 differs depending on the vehicle. Therefore, in the technical standard conformance test, the base station 315 needs to detect the output power level of the wireless device, such as the maximum power test and the power control test, by the base station 315 in each vehicle to be tested. It is necessary to know the propagation loss between the vehicle antenna 340 and the technique application antenna 335.

Therefore, when the software defined radio 352 is installed in the vehicle 350, the data of the propagation loss between the vehicle antenna 340 and the technique application antenna 335 is measured, and the result is shown in the form of the table in FIG. Inspection data storage unit 1
Be sure to save it in 55. In order to use it for this actual measurement, there is a device having the same configuration as the base station 315 of the car dealer 310, the inspection device 318, and the shield room 330 in the factory or the like where the car dealer 310 is installed. Hereinafter, regarding the reference numerals of these devices and their components in the factory where they are installed, an apostrophe (') is added to the device reference codes equivalent to those of the car dealer 310.

FIG. 6 is a flow chart showing the procedure for actually measuring the propagation loss data when the software defined radio 352 is installed in the vehicle 350. First, the antenna connector 114 of the vehicle 350 and the technique application connector 428 of the inspection device 318 are directly connected by a high frequency cable (step 5).
10). The propagation loss of the electric power of the signal passing through this high frequency cable is known in advance. The control unit 414 ′ of the base station 315 ′ is adapted to receive notification of the propagation loss of the high frequency cable from the operation unit 416 ′ or the like in advance.

Next, the control unit 414 'controls the antenna switch 421', and the demultiplexer 423 'and the technique application connector 4 are controlled.
28 'is connected. In addition, the control unit 41
4'controls the termination switch 424 'and the attenuator 427'.
And the demultiplexer 423 'are connected.

Next, the control unit 414 'transmits a predetermined signal for shifting the software defined radio 352 to the test mode via this high frequency cable. Upon receiving this, the arithmetic processing unit 140 enters the test mode.

Next, the control unit 414 'sends a control signal requesting that the signals of a plurality of frequencies be sequentially output at the maximum output, the transmitting / receiving unit 413', the attenuator 427 ', and the terminating switch 42.
4 ', the demultiplexer 423', the antenna switch 421 ', and the technique application connector 428'.
Output to 2. The arithmetic processing unit 140 ′ that received it,
The signals are output to the baseband signal processing unit 120 so that signals of a plurality of designated frequencies are sequentially transmitted at the maximum output.
By such control, the software defined radio 352 sequentially transmits signals of a plurality of designated frequencies at the maximum output (step 520).

The control unit 414 ′ that has received these signals via the high frequency cable corrects them by the propagation loss of the high frequency cable which has been notified beforehand, so that these signals are output in the software defined radio 352. The power value at this time is calculated and acquired (step 52).
5).

Next, this high-frequency cable is removed from the technique application connector 428 'and the antenna connector 114. Then, the technique application antenna 335 'is connected to the technique application connector 428', and the vehicle antenna 340 is connected to the antenna connector 114 (step 530).

Then, the vehicle 350 is stopped at a prescribed position in the shielded room 330 ', and wireless communication is performed via the technique applying antenna 335' and the vehicle antenna 340. A control signal is output so that the signals are output in order, and the arithmetic processing unit 140 that has received the signal outputs the signal to the baseband signal processing unit 120 so that the signals of a plurality of designated frequencies are sequentially output at the maximum output. By such control, the software defined radio 3
52 sequentially transmits signals of a plurality of designated frequencies at the maximum output (step 540).

Upon receiving these signals, the control unit 414 '
Is the software defined radio 35 acquired in step 525.
The maximum transmission power at each frequency of 2 and the reception power acquired this time are compared. Then, the propagation loss at each frequency is calculated by this comparison (step 550).

Then, the control unit 414 'transmits this propagation loss information to the software defined radio 352, and the arithmetic processing unit 140 of the software defined radio 352 receives it and records it in the inspection data storage unit 155.

In this way, the software defined radio 35
When the second vehicle is installed in the vehicle 350, information about the propagation loss is recorded in the inspection data storage unit 155.

FIG. 7 is a flowchart showing the procedure of the technical standard conformance test performed by the software defined radio 352 mounted on such a vehicle 350 when downloading the defined software defined module for a new communication system.

First, the arithmetic processing unit 140 of the software defined radio 352 downloads the software defined module corresponding to the new communication system from the base station or the like by the conventionally available wireless communication system (step 610). Then, the arithmetic processing unit 140 records the downloaded software defined module in the software defined module storage unit 153.

As a next step, an operator who conducts the technical standard conformance test receives a notification from the user of the vehicle 350 by verbal communication or the like, and the propagation loss information is recorded in the inspection data storage unit 155 at the time of installation. Then, it is determined whether the vehicle 350 has been modified (step 630). That is, this worker determines whether or not there is a change in the propagation loss between the technique application antenna 335 and the vehicle antenna 340 due to modification such as installation of a carrier or movement of the position of the antenna.

If the operator judges that the car has been modified, that is, if it is necessary to calculate the propagation loss information again, the base station 315 in the car dealer 310,
Using the inspection device 318 and the shielded room 330, the procedure of steps 510 to 555 in FIG. 6 is performed to record new propagation loss information in the inspection data storage unit 155 (step 630).

If the operator determines that the vehicle has not been modified, that is, if the information on the propagation loss recorded in the inspection data storage unit 155 is currently valid, the operator determines that the vehicle 350 has been changed. The shield chamber 330 is stopped at a specified position (step 632). Then, this operator operates the operation unit 416 so that the base station 315 starts the technical standard conformance test. Accordingly, the control unit 414 of the base station 315 first transmits a predetermined signal for shifting the software defined radio 352 to the test mode in order to start the technical standard conformance test. In this case, the control unit 414 first controls the antenna switch 421, and the duplexer 4
23 and the technique application connector 428 are connected. Further, the control unit 414 controls the termination switch 424 so that the attenuator 427 and the demultiplexer 423 are connected.

Upon receiving the predetermined signal for shifting to the test mode, the arithmetic processing unit 140 enters the test mode (step 635).

Then, the control section 414 first sends a control signal requesting the software radio 352 to transmit the information on the propagation loss. Then, the arithmetic processing unit 140 that has received the control signal reads the information on the propagation loss from the inspection data storage unit 155 and transmits this information to the baseband signal processing unit 120. As a result, the information about the propagation loss is transmitted from the software defined radio 352 to the base station 315 (step 640).

Then, the control unit 414 of the base station 315 receives the transmitted information on the propagation loss (step 64).
2).

The control section 414 also uses the received propagation loss information as data for calculating the power level when the software radio 352 sends the power level from the power level of the signal received from the software radio 352 thereafter. adopt. That is, this propagation loss information is set as a factor for calculating the output power level at the time of transmission by multiplying the power level of the received signal (step 64).
5).

Then, the control unit 414 controls the wireless switch 3
A signal requesting to turn off the power supply by switching the switch of 56 is transmitted to the software defined radio 352. The arithmetic processing unit 140 that receives this signal causes the wireless switch 3 to
A control signal for switching off is wirelessly transmitted to 56. The wireless switch 356 that receives this control signal via the switch antenna 357 causes the vehicle battery 3
54 to navigation system 353, ETC receiver 361, keyless entry device 362, Bluetooth
The switch is switched so that the power supply to the th communication device 363 and the audio device 364 is turned off (step 650). As a result, it is possible to prevent the electronic devices other than the software defined radio 352 in the vehicle 350 from being deactivated and emitting an unnecessary electric wave for the technical standard conformance test from these electronic devices.

The base station 315 and the inspection device 318
Performs the technical standard conformance test of the software defined radio 352 for the new software defined module (step 655). Base station 3 at the time of this technical standard conformance test
15, examples of operations of the inspection device 318 and the software defined radio 352 will be described later.

When the technical standard conformance test is completed, the control unit 414 connects to the technical standard conformity certification body 325 via the base station network and the Internet 320, and the test result of the technical standard conformity certification test is transmitted to the technical standard conformity certification body. 325
(Step 665).

Upon receipt of this test result, the technical standard conforming certification body 325 receives the test result based on the test result and the prescribed acceptance standard.
It is determined whether or not the software defined radio 352 using this new software defined module has passed the technical standard conformance test (step 665).

When it is judged as a failure, the technical standard conforming certification body 325 notifies the base station 315 of the failure, and the control unit 4 of the base station 315 which has received the notification.
14 notifies the software defined radio module storage unit 153 of the failure (step 670). The arithmetic processing unit 140 of the software defined radio module storage unit 153, which has received the notification of failure, causes the image display unit 160 to display that the technical standard conformance test has failed.

The operator who sees this display repairs or replaces the software defined radio 352 if requested by the user based on this failure notification.

When the technical standard conformity certification body 325 determines in step 665 that the technical standard conformity test passes, the technical standard conformity certification body 325 generates a certification key from the identifier and the software name of the software defined radio 352. Then, this authentication key is transmitted to the base station 315. Then, the control unit 414 having received this authentication key transfers it to the software defined radio 352 (step 68).
0).

When the arithmetic processing unit 140 of the software defined radio 352 receives this authentication key, it records it in the authentication key storage unit 154 (step 685).

Here, the operations of the base station 315, the inspection device 318, and the software defined radio 352 in the various inspections of the technical standard conformance test described above are performed by the above-described maximum power inspection, power control inspection, frequency deviation inspection, spurious inspection,
The case of the secondary emission inspection and the connection inspection will be described.

In the maximum power inspection, first the control unit 41
4 controls the antenna switch 421 so that the duplexer 423 and the technique application connector 428 are connected. Further, the control unit 414 controls the termination switch 424 so that the attenuator 427 and the demultiplexer 423 are connected. That is, the transmission signal output from the transmission / reception unit 413 is emitted as a radio wave from the technique application antenna 335, and the signal received by the technique application antenna 335 is received by the transmission / reception unit 413. Then, the control unit 414 sends to the transmission / reception unit 413 a signal requesting the software defined radio 352 to send a radio wave with maximum output at a plurality of predetermined frequencies. When the arithmetic processing unit 140 of the software defined radio 352 receives this signal via the vehicle antenna 340,
The baseband signal processing unit 120 is controlled so as to transmit the radio wave with the maximum output at a predetermined plurality of frequencies according to the request. This causes the software defined radio 352 to emit radio waves from the vehicle antenna 340 according to the request.

The transmission / reception unit 413 of the base station 315 receives this electric wave converted into an electric signal by the technique applying antenna 335 via the demultiplexer 423, detects the power level of the received electric signal, and The control unit 414 is notified of the value. Then, the control unit 41 that has received this power level notification
4 calculates the output power level at the time of transmission in the software defined radio 352 from the received power level using the information on the propagation loss adopted as the factor in step 645. Then, it is determined whether the calculated output power level is within the specified range, and the determination result is included in the test result.

In the power control inspection, first, the control unit 414 controls the antenna switch 421 to cause the duplexer 4 to operate.
23 and the technique application connector 428 are connected. Further, the control unit 414 controls the termination switch 424 so that the attenuator 427 and the demultiplexer 423 are connected. Then, the control unit 414 lowers the output level from the maximum by a specific amount (for example, 12 dB) at a plurality of predetermined frequencies, and outputs the radio waves by the software defined radio 352.
The signal to be set to is transmitted to the transmitting / receiving unit 413. The arithmetic processing unit 14 that receives this signal via the vehicle antenna 340
0 controls the baseband signal processing unit 120 so as to transmit the radio wave with the output power reduced by the requested amount at the maximum output at a predetermined plurality of frequencies according to the request. As a result, the software defined radio 352 emits radio waves from the vehicle antenna 340 according to the setting.

The transmitter / receiver 413 uses the technique application antenna 335.
The electric wave converted into the electric signal is received, the power level of the received electric signal is detected, and the value is notified to the control unit 414. Then, the control unit 414 that has received this power level notification calculates the output power level at the time of transmission in the software defined radio 352 from the received power level using the information of the propagation loss adopted as the factor in step 645. Then, it is determined whether or not the calculated output power level falls within a specified range from the set level decrease amount, and the determination result is included in the test result.

In the frequency shift inspection, the control unit 414 first controls the antenna switch 421 so that the duplexer 423 and the technique application connector 428 are connected. Further, the control unit 414 controls the termination switch 424 so that the attenuator 427 and the demultiplexer 423 are connected. Then, the control unit 414 controls the software defined radio 35 to send out a radio wave as a carrier wave having one frequency.
The signal set to 2 is sent to the transmitting / receiving unit 413. After that, the control unit 414 controls the antenna switch 421,
Spectrum analyzer 422 and technique application connector 428
So that and are connected. That is, the signal received by the technique application antenna 335 is the spectrum analyzer 422.
To be output to. Further, the control unit 414 controls the spectrum analyzer 422, and the frequency of the signal received by the spectrum analyzer 422 is controlled by the control unit 414.
To notify.

Then, the arithmetic processing unit 140 which receives the signal transmitted by the control unit 414 via the vehicle antenna 340.
Controls the baseband signal processing unit 120 to transmit the radio wave at the requested frequency according to the setting. This causes the software defined radio 352 to emit radio waves from the vehicle antenna 340 according to the request.

The spectrum analyzer 422 receives the radio wave converted into the electric signal by the technique applying antenna 335, detects the frequency of the received electric signal, and notifies the control unit 414 of the value. Then, the control unit 414 that has received the notification of the frequency determines whether or not the deviation of the notified frequency falls within a specified range from the set frequency, and includes this determination result in the test result.

In the spurious inspection, the controller 414 first controls the antenna switch 421 so that the duplexer 423 and the technique application connector 428 are connected. Further, the control unit 414 controls the termination switch 424 so that the attenuator 427 and the demultiplexer 423 are connected. Then, the control unit 414 sends to the transmission / reception unit 413 a signal for setting the software defined radio 352 to send a radio wave signal at one frequency. After that, the control unit 414 controls the antenna switch 421 so that the spectrum analyzer 422 and the technique application connector 428 are connected. Further, the control unit 414 controls the spectrum analyzer 422, and the control unit 41 determines the frequency-strength characteristic of the signal received by the spectrum analyzer 422.
4 to be notified.

The arithmetic processing unit 140 which receives the signal transmitted by the control unit 414 via the vehicle antenna 340.
Controls the baseband signal processing unit 120 so as to transmit the radio signal at the requested frequency according to the setting. This causes the software defined radio 352 to emit radio waves from the vehicle antenna 340 according to the request.

The spectrum analyzer 422 receives the radio wave converted into the electric signal by the technique applying antenna 335, detects the frequency-strength characteristic of the received electric signal, and notifies the control unit 414 of the value. Then, the control unit 414 that has received the notification of the frequency determines whether or not the noise in the frequency component other than the set frequency in the notified frequency-strength characteristic, that is, spurious, is equal to or less than a predetermined value, and the determination result Are included in the test results.

In addition, in the secondary emission inspection, first, the control unit 414 controls the antenna switch 421 to cause the duplexer 4 to operate.
23 and the technique application connector 428 are connected. Further, the control unit 414 controls the termination switch 424 so that the attenuator 427 and the demultiplexer 423 are connected. Then, the control unit 414 transmits a signal for setting the software defined radio 352 to stop the transmission to the transmission / reception unit 413.
Send to. Upon receiving this signal via the vehicle antenna 340, the arithmetic processing unit 140 stops transmission upon request.

At this time, the transmitting / receiving unit 413 receives the electric wave converted into the electric signal by the technique applying antenna 335,
The power level of the received electric signal is detected, and the value is notified to the control unit 414. Then, the control unit 414 that has received this power level notification calculates the output power level at the time of radio wave emission in the software defined radio 352 from the received power level using the information of the propagation loss adopted as the factor in step 645. Then, it is determined whether or not the calculated output power level is equal to or lower than a specified value, and the determination result is included in the test result.

Then, the base station 315 transmits the result of the technical standard conformance test to the technical standard conforming certification body 325 via the base station network and the Internet network 320 (step 660). The result of the technical standard conformance test, that is, the test result includes the identifier of the software defined radio 352, the type of the software defined radio module to be subjected to the technical standard conformance test, and the judgment result by various inspections. As the identifier of the software defined radio 352, a lot number is used in this embodiment. Also, instead of the judgment results by various inspections, the values themselves such as power deviation, frequency deviation, spurious output power, secondary radiation output power, connection failure frequency, etc. during various inspections are the results of the technical standard conformance test. It may be included.

The technical standard conforming certification body 325 receives the test result and judges whether the received test result conforms to the prescribed standard (step 665). When it is determined that the software radio module 352 conforms, that is, the technical standard conformance test passes, the base station 315 transmits to the base station 315 an authentication key that allows the software defined radio module 352 to use the software defined radio module. Then, the base station 315 receives this authentication key and transmits it to the software defined radio 352 by wireless communication (step 68).
0). The arithmetic processing unit 1 of the software defined radio 352
40 receives this authentication key (step 685), confirms the validity of the signature using the public key recorded in the authentication key storage unit 154, and then records this authentication key in the authentication key storage unit 154.

If the technical standard conformity certification body 325 determines that the test fails in step 665, the technical standard conformity certification body 325 notifies the base station 315 to that effect, and the base station which received this notice. 315 notifies the software defined radio 352 of the failure (step 67).
0). And the software defined radio 3 which received the notification
The arithmetic processing unit 140 of 52 displays on the image display unit 160 that the technical standard conformance test has failed.

By doing so, the vehicle 350
The software defined radio 352 installed in the vehicle can receive the technical standard conformance test of the new software defined radio module and the technical standard conformance test with the software defined radio 352 attached to the vehicle.

In the present embodiment, the base station 315
And the inspection device 318 constitutes a technical standard conformance test device. However, the base station 315 and the inspection device 318 do not need to be separated in this way, and the inspection device 318 may be incorporated in the base station 315, for example.

The shield room 330 corresponds to the technical standard conformance test facility.

The technique application antenna 335 corresponds to the antenna used by the technical standard conformance testing apparatus for the technical standard conformance test.

The software defined radio function implementing means 13
The communication system switching means is configured to switch the communication system to be used by switching the software defined radio module used by 0.

[0126] Further, when the inspection data storage unit 155 stops the vehicle at the specified position with respect to the technical standard conformance test facility, the radio wave from the radio communication device is transmitted until it is received by the antenna. A memory for recording the information of the propagation loss between the two.

Further, the transmission processing of the arithmetic processing unit 140 described in step 640 of FIG. 7 notifies the information of the propagation loss at the technical standard conformance test to the technical standard conformity test apparatus via the antenna, the propagation loss information transmitting means. Make up.

Further, the reception process of the arithmetic processing unit 140 described in step 685 of FIG. 7 constitutes an authentication key receiving means for receiving the authentication key from the technical standard conformance testing device by wireless communication.

The reception processing of the control unit 414 described in step 642 of FIG. 7 constitutes a propagation loss information receiving means for receiving the information of the propagation loss from the software defined radio.

Further, when the processing of the control unit 414 described in step 645 of FIG. 7 performs the technical standard conformance test of the vehicle stopped at the specified position with respect to the technical standard conformance test equipment, the information of the propagation loss And a propagation loss information using means used to obtain the power level when the received signal is transmitted from the software defined radio, from the power level of the signal received from the software defined radio.

The transmission processing of the control unit 414 described in step 660 of FIG. 7 constitutes a test result transmitting means for transmitting the result of the technical standard conformance test of the software defined radio to the technical standard conformity certification body via the network. To do.

Further, the processing of the control unit 414 described in step 680 of FIG. 7 is the information which the technical standard conformity certification body returns based on the transmitted test result and which is the information indicating that the technical standard conformity test has been passed. Authentication key transmitting means for receiving the key and transmitting the received authentication key to the software defined radio by wireless communication is configured.

Further, the Internet 320 corresponds to a network to which a technical standard conforming certification body is connected.

Further, the network interface 41
Reference numeral 5 corresponds to connecting means for connecting to the network to which the technical standard conforming certification body is connected in order to communicate with the technical standard conforming certification body.

In the present embodiment, the car dealer 310 conducts the technical standard conformance test.
The car dealer 310 does not need to perform the test, and the technical standard conformance test may be performed at any place as long as there is a facility for the technical standard conformance test as in the present embodiment.

Further, in the present embodiment, the software defined radio 352 controls the wireless switch 356 by wireless communication, and the navigation system 353, the ETC receiver 361, the keyless entry device 362, and the Bluetooth.
Although the operations of the th communication device 363 and the audio device 364 are stopped, it is not always necessary to do so, and the operations may be stopped manually, for example.

In addition, in this embodiment, the base station 315
Can communicate with cdma2000 or W-CDMA communication system, but the technical standard conformance test device does not necessarily need to be a device that supports only the communication system determined in this way. It may be one that enables communication by a plurality of communication systems by switching the software defined radio module.

[Brief description of drawings]

FIG. 1 is an overall configuration diagram of a technical standard conformance test system.

FIG. 2 is a block diagram showing a configuration of a software defined radio 352 according to the first embodiment of the present invention.

FIG. 3 is a configuration diagram of devices in a vehicle 350.

FIG. 4 is a chart showing an example of inspection data.

5 is a block diagram showing configurations of a base station 315 and an inspection device 318. FIG.

FIG. 6 is a flowchart showing a procedure of actual measurement of propagation loss data when the software defined radio 352 is installed in the vehicle 350.

FIG. 7 is a software defined radio 3 mounted on a vehicle 350.
It is a flowchart which shows the procedure of the technical standard conformity test of 52.

[Explanation of symbols]

111 ... Transmitting section, 112 ... Receiving section, 113 ... Antenna duplexer, 114 ... Antenna connector, 115 ... Integrated radio section, 120 ... Baseband signal processing section, 130 ... Software radio function realizing means, 140 ... Arithmetic processing section, 150
... storage device, 153 ... software defined module storage unit, 154 ... authentication key storage unit, 155 ... inspection data storage unit, 160 ... image display unit, 170 ... operation unit, 310 ...
Car dealer 315 ... Base station, 318 ... Inspection device,
320 ... Internet, 325 ... Certification body, 330 ...
Shield room, 335 ... Technique applying antenna, 340 ... Vehicle antenna, 350 ... Vehicle, 352 ... Software wireless communication device, 353 ... Navigation system, 354 ... Vehicle battery, 356 ... Wireless switch, 357 ... Switch antenna, 361 ... ETC reception , 362 ... Keyless entry device, 363 ... Bluetooth communication device, 36
4 ... Audio device, 411 ... Receiving antenna, 412 ...
Transmitting antenna, 413 ... Transceiver, 414 ... Control, 4
15 ... Network interface, 416 ... Operation part, 421 ... Antenna switch, 422 ... Spectrum analyzer, 423 ... Divider, 424 ... Termination switch,
425 ... Terminator, 426, 427 ... Attenuator, 428 ... Technique application connector.

   ─────────────────────────────────────────────────── ─── Continued front page    F-term (reference) 5K011 DA26 JA01 LA01                 5K042 AA06 CA02 CA13 DA19 EA01                       FA20 GA02 HA14 JA10 LA11                       MA04                 5K101 KK02 LL12 MM07 NN14 NN21                       PP04

Claims (5)

[Claims] 1. A software defined radio installed in a vehicle, the communication system switching means being capable of switching the communication system used by changing the software defined module used, and a new communication system of the software defined radio. Of the radio wave from the software radio when the vehicle is stopped at the specified position with respect to the technical standard conformance test facility equipped with the antenna used for the technical standard conformance test for the use of A memory for recording the information of the propagation loss until it is received by the antenna, and the reception power level of the signal received from the software defined radio by using the information of the propagation loss at the time of the technical standard conformance test. From the software-defined radio when the received signal is transmitted from the Seeking the power level,
Utilizing this transmission power level, the information of the propagation loss recorded in the memory is stored in a technical standard conformance testing device that performs the technical standard conformance test by wireless communication with the software defined radio using the antenna. A software defined radio including a propagation loss information transmitting means for notifying. 2. An authentication key receiving means for receiving an authentication key, which is information notifying that the technical standard conformance test has been passed by the wireless communication, from the technical standard conformance test apparatus. The software defined radio according to Item 1. 3. A technical standard conformance test for use of a new communication system of the software defined radio by performing wireless communication with a software defined radio capable of changing the communication system used by changing the software defined module used. A technical standard conformity testing device for performing, when a vehicle equipped with the software defined radio has stopped at a specified position with respect to a technical standard conformity test facility equipped with an antenna used for the wireless communication. , A propagation loss information receiving means for receiving information on a propagation loss of the radio wave from the software defined radio from being transmitted to being received by the antenna, and the technical standard conformance test facility. On the other hand, the technical standard compliance test of the vehicle stopped at the specified position In this case, the information of the propagation loss, from the reception power level of the signal received from the software defined radio, the transmission power when the received signal required in the technical standard compliance test is transmitted from the software defined radio. A technical standard conformance test apparatus comprising: a propagation loss information use means used for obtaining a level. 4. The technical standard conformity certification body connects to communicate with the technical standard conformity certification body for judging whether or not the software defined radio has passed the technical standard conformity test based on the result of the technical standard conformity test. Connection means for connecting to the network, the test result transmitting means for transmitting the result of the technical standard conformance test of the software defined radio to the technical standard conformity certification body via the network, and based on the transmitted test result. Authentication key transmission means for receiving an authentication key, which is information indicating that the technical standard conformance test has passed, returned from the technical standard conformity certification body, and transmitting the received authentication key to the software defined radio by the wireless communication. The technical standard conformity testing device according to claim 3, further comprising: 5. A vehicle equipped with the software defined radio according to claim 1, and a technical standard conformity test provided with an antenna used by the technical standard conformity test apparatus according to claim 3 for the technical standard conformance test. Procedure to stop at a specified position for equipment, a procedure of notifying the information of the propagation loss from the software defined radio to the technical standard conformance test device, the technical standard conformity test device, the information of the propagation loss ,
From the received power level of the signal received from the software defined radio, the software is used to obtain the transmission power level when the received signal required in the technical standard conformance test is transmitted from the software defined radio. A procedure for performing a technical conformance test of a wireless device, and a technical conformance standard conformity test method including the procedure.