JP5592864B2 - Wireless characteristic evaluation system and wireless characteristic evaluation method - Google Patents

Description

  The present invention relates to a wireless characteristic evaluation system and a wireless characteristic evaluation method.

  In recent years, cellular phones and wireless local area networks (LANs) have become widespread, and wireless transmission paths have become increasingly wideband. Therefore, frequency tightness has become a problem, and more effective use of frequency is desired.

  The frequency band used for TV broadcasting has a different use channel in each region, and a frequency band that is not used limited to a certain region or time zone occurs due to a broadcast stop time or the like. This is called a TV white space. By sharing this frequency band among a plurality of wireless systems, improvement in frequency utilization efficiency can be expected. In FCC (Federal communication commission) and Ofcom (Office of communication), as a sharing method of such frequency bands, the frequency information that can be used in each region is made into a database and used based on the report of the location information of each wireless terminal. A method for notifying a possible frequency is proposed (for example, see Non-Patent Document 1).

  By the way, in order to use normal radio waves, it is necessary to open a radio station equipped with radio equipment and the like, and in order to open a radio station, it is necessary to obtain a license from the Minister of Internal Affairs and Communications. The validity period of this license varies depending on its use. For example, in the case of a mobile phone system, a telecommunications carrier opens a wireless base station, and a user connects to the wireless base station using a terminal device to perform communication. However, in order to simplify and streamline the licensing procedure and reduce the burden on license applicants, registration is required for radio equipment for use in small-scale radio stations and specified by the Ordinance of the Ministry of Internal Affairs and Communications (specific radio equipment: mobile phones, etc.) As a special case, there is a system (technical standard conformity certification system) for certifying that the certification body complies with the technical standards stipulated in the Radio Law (see Non-Patent Document 2, for example). By using a radio station with this technical standard conformity certification, the procedure for applying for a radio station license is greatly simplified, and the radio station has a radio station power of about 0.01 W or less. Wireless LAN and cordless telephones do not require licenses for radio stations, which helps reduce the burden on those who use radio equipment.

  In addition, in order to connect a terminal device to a telecommunication carrier's telecommunications line facility, it is necessary to undergo a connection inspection of the carrier, which contributes to an improvement in convenience for those who use the terminal device. In view of the above, a special system has been established for the terminal equipment specified by the Ordinance of the Ministry of Internal Affairs and Communications (Registration Accreditation System) that the accreditation body recognizes conformity to the technical standards specified by the Ordinance of the Ministry of Internal Affairs and Communications. The terminal device that has received this certification takes measures to eliminate the need for a connection inspection by the operator when connecting the terminal device, which is useful for improving the convenience of the user of the terminal device.

  In order to obtain technical standard conformity certification and technical standard conformity certification, submit the construction design document to the registration certification body, and after reviewing the documents, test the quality of the radio waves emitted by actually bringing in the terminal equipment, Check whether various call codes are automatically sent out, "Does it have a function that does not interfere with other communications?", "Does it have a structure that cannot be opened easily?" After that, a “technical conformity certification” or “technical conformity certification” is issued and the user can use it.

  FIG. 6 shows a test system for radio characteristics in the conventional technical standard conformity certification. When the terminal device 100 that requires the technical certification conformity to the registration certification authority 9 is brought in, the terminal device 100 is connected to the spectrum analyzer 5, power meter 6, oscilloscope 7, etc., and the frequency characteristics, transmission power, time response, etc. Transmission characteristics are measured. These measurement results are compared with reference values registered in the wireless standard database 12 or the like, and the measurement results satisfy the standards, and other conformance standards (structures that cannot be opened easily) other than the wireless characteristics. The terminal device 100 is approved. The registration certification authority 9 is provided with reference terminals 8-1 to 8-n that have acquired technical standard conformity certification, and of these, the reference terminal 8-i that uses the same wireless method as the terminal device 100. Interoperability is also determined by performing a connection test with (i is any one of 1 to n).

Sasaki, “Standardization of White Space Type Cognitive Radio”, IEICE Technical Report, March 2010, SR2009-91, p. 1-7 Ministry of Internal Affairs and Communications: Homepage using radio waves, “Standard certification system for radio station equipment”, [Search September 9, 2011], Internet <URL: http://www.tele.soumu.go.jp/j/sys /equ/index.htm>

  The above-mentioned technical standard conformity certification and technical standard conformity certification generally require several months for registration such as application procedures and certification tests, which is one of the factors that hinder the spread of terminal equipment. For example, introduction of remote wireless characteristic evaluation or the like is desired. However, in order to remotely evaluate wireless characteristics, it is necessary to bring out a measuring instrument or the like, and thus it is difficult to introduce it. In addition, when the frequency of the terminal device to be evaluated is approved based on incorrect position information, a radio wave interference problem occurs, and it is necessary to determine whether the position information is true or false.

  The present invention has been made in consideration of such circumstances, and a wireless characteristic evaluation system and a wireless characteristic evaluation method capable of remotely evaluating the wireless characteristics of a terminal device while suppressing the occurrence of radio wave interference I will provide a.

  In order to solve the above-described problem, the present invention includes a base station apparatus, a signal processing apparatus, a radio system management apparatus, a measurement apparatus, and a database, and the radio characteristics for evaluating the radio characteristics of the radio station apparatus In the evaluation system, the database stores location information and available frequencies in association with each other, and stores a setting parameter including at least a frequency used for transmission of the test radio wave. The usable frequency is set among the frequencies used for transmitting the test radio wave obtained based on the usable frequency stored in the database corresponding to the location information of the base station device and the setting parameter. A notification unit for notifying the wireless station device and the base station device of the setting parameter, and a radio wave indicating a radio wave state of a test radio wave transmitted by the wireless station device. A measurement result acquisition unit that obtains a measurement result of radio characteristics measured by the measurement device based on the data, and the base station device receives the test radio wave transmitted using the setting parameter from the terminal station device And a radio receiving unit for outputting the received radio wave data of the test radio wave to the signal processing device, wherein the signal processing device converts the radio wave data input from the base station device into a radio signal and the measuring device. It is the radio | wireless characteristic evaluation system characterized by including the conversion part input into this.

  Further, the present invention is the above-described wireless characteristic evaluation system, wherein the notification unit acquires an available frequency from the database based on information on a position of the base station device and outputs the frequency to the base station device. The base station apparatus further includes a radio transmission unit that informs the radio station apparatus of a radio system to be used for a setting parameter inquiry signal according to the available frequencies received from the radio system management apparatus, The unit outputs a setting parameter inquiry signal received from the wireless station device to the wireless method management device by the notified wireless method.

  Further, the present invention is the above-described wireless characteristic evaluation system, further comprising a monitor device installed around the base station device, wherein the monitor device does not require the test radio wave received from the wireless station device. The launch and signal quality are analyzed and transferred to the wireless management device.

  The present invention is also a wireless characteristic evaluation method of a wireless characteristic evaluation system comprising a base station device, a signal processing device, a wireless method management device, a measurement device, and a database, wherein the database is position information. And a usable frequency are stored in association with each other, and a setting parameter including at least a frequency used for transmission of the test radio wave is stored, and the wireless system management device corresponds to the location information of the base station device in the database. Obtained from the stored available frequency and the setting parameter, the setting parameter in which the usable frequency is set among the frequencies used for the transmission of the test radio wave is set as the radio station device and the base station. A notification step of notifying a device, and the base station device transmits a test radio wave transmitted using the setting parameter from the terminal station device. Transmitting and outputting the radio wave data indicating the radio wave state of the received test radio wave to the signal processing device, and the signal processing device converts the radio wave data input from the base station device into a radio signal. A radio step comprising: a conversion step for inputting to the measurement device; and a measurement result acquisition step for the wireless method management device to obtain a measurement result of a radio characteristic measured by the measurement device based on the radio wave data. This is a characteristic evaluation method.

  According to the present invention, it is possible to remotely evaluate the radio characteristics of a terminal device (radio station apparatus) while suppressing the occurrence of radio wave interference.

It is a block diagram which shows the structure of the radio | wireless characteristic evaluation system by the 1st Embodiment of this invention. It is a sequence diagram of the radio | wireless characteristic evaluation system by the embodiment. It is a block diagram which shows the structure of the radio | wireless characteristic evaluation system by the 2nd Embodiment of this invention. It is a block diagram which shows the structure of the radio | wireless characteristic evaluation system by the 3rd Embodiment of this invention. It is a block diagram which shows the structure of the radio | wireless characteristic evaluation system by the 4th Embodiment of this invention. It is a figure which shows the test system of the conventional technical standard conformity certification.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

  FIG. 1 is a block diagram showing a configuration of a wireless characteristic evaluation system according to a first embodiment of the present invention. The wireless characteristic evaluation system of the present embodiment evaluates whether the wireless characteristic of the terminal device 1 conforms to the standard of technical standard conformity certification (or technical standard conformity certification). As shown in the figure, the wireless characteristic evaluation system of the present embodiment includes monitor terminals 10-1 to 10-n (hereinafter also collectively referred to as “monitor terminal 10”), wireless base station 2, signal processing. The apparatus 3 includes a radio system management apparatus 14, a spectrum analyzer 5, a power meter 6, an oscilloscope 7, reference terminals 8-1 to 8 -n, a frequency management database 11, and a radio standard database 12.

  The terminal device 1 is a wireless station device that requests technical standard conformity certification, and it is assumed that it satisfies the provisions for all unnecessary emissions such as spurious emission, out-of-band emission, and transmitter noise in a transmittable wireless band. Further, it is assumed that the terminal device 1 satisfies a standard other than wireless characteristics such as a structure that cannot be easily opened.

  The monitor terminal 10 notifies the radio system management device 14 of the frequency of the radio signal received from another device in real time. Further, the monitor terminal 10 receives a test radio wave (wireless test signal) transmitted from the terminal device 1, analyzes unnecessary emission such as spurious emission and out-of-band emission, signal quality, and the like, and the analysis result is a wireless method. It transmits to the management apparatus 14.

  The wireless base station 2 is a base station device that communicates with the terminal device 1 and the monitor terminal 10 wirelessly and communicates with the signal processing device 3 via the optical fiber 13. The radio base station 2 includes a radio reception unit 21 and a radio transmission unit 22. The wireless reception unit 21 converts the wireless signal received from the terminal device 1 and the monitor terminal 10 into a wired signal and relays it to the signal processing device 3. Further, the wireless transmission unit 22 converts the wired signal received from the signal processing device 3 into a wireless signal and relays it to the terminal device 1 and the monitor terminal 10.

  The signal processing device 3 includes a relay unit 31 and a conversion unit 32. The relay unit 31 relays the signal received from the radio base station 2 to the radio system management device 14 and relays the signal received from the radio system management device 14 to the radio base station 2. The conversion unit 32 receives a wired signal obtained by converting the wireless signal of the terminal device 1 from the wireless base station 2, reconverts the received wired signal into a wireless signal, and measures the spectrum analyzer 5, the power meter 6, the oscilloscope 7, and the like. The transmission characteristics of the terminal device 1 are evaluated.

  The spectrum analyzer 5 measures power and voltage for each frequency. The power meter 6 measures the amount of power for each frequency. The oscilloscope 7 measures the change over time of the voltage of the signal for each frequency. Hereinafter, the spectrum analyzer 5, the power meter 6, and the oscilloscope 7 are collectively referred to as “measuring instrument”.

The registration certification organization 9 which is a public organization and gives technical standard conformity certification has two databases, a frequency management database 11 and a radio standard database 12.
The frequency management database 11 stores the position information of the radio base station 2 and the position information of the monitor terminal 10 and stores available frequencies corresponding to the area.
In the wireless standard database 12, specification data of various wireless standards in Japan and overseas are registered. The specification data includes setting parameters indicating transmission power and frequency for test radio waves, and data indicating certification conditions for certification of technical standard conformity.

  The wireless system management device 14 is connected to the frequency management database 11 and the wireless standard database 12 of the registration certification authority 9 via the core network 4 such as the Internet. The wireless system management device 14 includes an update unit 141, a notification unit 142, a measurement result acquisition unit 143, and an authentication result acquisition unit 144. The update unit 141 updates the usable frequency for each region stored in the frequency management database 11 based on the position information and radio wave data received from the monitor terminal 10. When the notification unit 142 periodically receives position information such as latitude and longitude of the radio base station 2 in the frequency management database 11 and receives available frequencies, the notification unit 142 notifies the terminal device 1 of the received frequencies. Further, the notification unit 142 reads out the setting parameter corresponding to the wireless standard of the terminal device 1 from the wireless standard database 12 and notifies the terminal device 1 of the setting parameter. The measurement result acquisition unit 143 receives the measurement result of the test radio wave by a measuring instrument such as the spectrum analyzer 5, the power meter 6, the oscilloscope 7, and the analysis result of the test radio wave by the monitor terminal 10. The authentication result acquisition unit 144 acquires the certification result of the technical standard conformity certification based on the measurement result received by the measurement result acquisition unit 143 from the wireless standard database 12.

  The radio base station 2 and the monitor terminal 10 are provided with a security function that cannot be used illegally by a third party, so that position information such as latitude and longitude transmitted from these devices and reporting of measurement results can be reported. There is no falsehood and accurate information is guaranteed.

Next, the operation of the wireless characteristic evaluation system of this embodiment will be described.
In the frequency management database 11, radio base station information of various radio systems is stored in advance. The radio base station information indicates, for example, position information of the radio base station 2, antenna height, antenna gain, transmission power, and the like. In addition, the radio base station 2 and the monitor terminals 10-1 to 10-n notify the radio system management device 14 of their position information. The update unit 141 of the radio system management device 14 writes the position information received from the radio base station 2 and the monitor terminals 10-1 to 10-n in the frequency management database 11 and a storage unit (not shown) included in the own device. . Thereby, the position information of the radio base station 2 in the radio base station information stored in the frequency management database 11 is updated.

  On the other hand, the monitor terminals 10-1 to 10-n receive radio data including frequency information of radio signals received from other devices in real time via the radio base station 2 and the signal processing device 3, and the radio system management device 14 Notify The update unit 141 of the wireless system management device 14 includes radio wave data notified from the monitor terminals 10-1 to 10-n, position information of the monitor terminals 10-1 to 10-n stored in the frequency management database 11, and The location information of the radio base station 2 indicated by the radio base station information is collated, and available frequencies that are not used in each area / location to which the radio base station 2 belongs are converted into data and written in the frequency management database 11. In this way, information in the frequency management database 11 is appropriately corrected in real time as the radio waves used in the area are updated.

FIG. 2 is a sequence diagram of the wireless characteristic evaluation system shown in FIG.
In the figure, first, the notification unit 142 of the radio system management device 14 transmits, to the frequency management database 11, position information of the radio base station 2 in the area to which the terminal device 1 that requests technical standard conformity certification belongs (step S105). ). The frequency management database 11 acquires a currently usable frequency specified by the received position information, and notifies the radio system management device 14 (step S110). Subsequently, the notification unit 142 of the wireless system management device 14 assigns the allocation information indicating the frequency and time slot necessary for the terminal device 1 to transmit the connection request, and the available frequency acquired from the frequency management database 11. The data is transmitted to the radio base station 2 via the relay unit 31 of the signal processing device 3. The wireless transmission unit 22 of the wireless base station 2 broadcasts the received allocation information using the received frequency (step S115).

  When the terminal device 1 receives the notification signal from the wireless base station 2, the terminal device 1 inquires the wireless system management device 14 about the setting parameter corresponding to the wireless standard used by the terminal device 1, and is designated by the allocation information included in the notification signal. A connection request is transmitted using the frequency and the time slot that have been set (step S120). A wireless standard used by the terminal device 1 is set in the connection request.

  Note that when the wireless reception unit 21 of the wireless base station 2 receives a connection request from the terminal device 1, the wireless transmission unit 22 returns a response signal. When connection requests for a plurality of terminal devices 1 are transmitted at the same time and the connection requests are not correctly received by the wireless reception unit 21 of the wireless base station 2, no response signal is returned. Therefore, if there is no response from the radio base station 2 after a set time since the connection request is transmitted, the terminal device 1 receives the notification signal from the radio base station 2 again and sends a connection request. resend.

  When the radio reception unit 21 of the radio base station 2 receives the connection request from the terminal device 1 using the frequency and time slot specified by the allocation information included in the broadcast signal, the connection request is made via the relay unit 31 of the signal processing device 3. Is transmitted to the wireless system management device 14. The notification unit 142 of the wireless system management device 14 transmits the wireless standard set in the connection request to the wireless standard database 12 and inquires about the setting parameter (step S125). The wireless standard database 12 acquires setting parameters for test radio waves corresponding to the received wireless standard, and returns them to the wireless system management device 14 (step S130). Note that the frequency for the test radio wave indicated by the setting parameter may be the same as or different from the frequency used for broadcasting.

  The notification unit 142 of the wireless system management device 14 transmits a predetermined test radio wave emission section and the like to the wireless base station 2 via the signal processing device 3 together with the setting parameters acquired from the wireless standard database 12. At this time, the notification unit 142 leaves only the usable frequency received in step S110 among the frequencies set for the test radio wave in the setting parameter received in step S130, and deletes and transmits the unusable frequency. The launch section indicates a time for transmitting a test radio wave, a time slot, and the like.

  In step S130, the wireless standard database 12 may notify the wireless method management apparatus 14 of setting parameters in which only available frequencies are set. In this case, the database 12 acquires the usable frequency notified by the frequency management database 12 in step S110, leaves only the usable frequency among the frequencies set for the test radio wave in the setting parameter, and cannot be used. The frequency is deleted and notified to the wireless system management device 14.

  The wireless transmission unit 22 of the wireless base station 2 monitors the terminal device 1 and the monitor terminals 10-1 to 10-1 located around the terminal device 1 according to the available frequencies broadcast in step S115. 10-n is notified (step S135).

  The terminal device 1 emits a test radio wave based on the notified setting parameter and the designated launch period (step S140). As described above, by assigning only the terminal device 1 that requires the certification of conformity to the technical standards for the time and frequency of emitting the test radio wave, it is possible to perform the test in an environment where the influence of the interference wave is small.

  The radio reception unit 21 of the radio base station 2 receives the test radio wave transmitted from the terminal device 1 based on the notified setting parameter and the designated launch period. The radio reception unit 21 performs frequency conversion of test radio waves, analog-digital (A / D) conversion, packet generation, electrical / optical conversion, and the like to convert into radio data of a wired signal, and a signal processing device via the optical fiber 13 3 (step S145). The reception state of the test radio wave received by the radio base station 2 is set in the radio wave data packet.

When the conversion unit 32 of the signal processing device 3 receives the radio data of the wired signal from the wireless base station 2, the conversion unit 32 performs optical / electrical conversion, packet demodulation, digital analog (D / A) conversion, and frequency conversion of the wired signal. The data is reconverted into a radio signal and input to a measuring instrument such as the spectrum analyzer 5, the power meter 6, and the oscilloscope 7 (step S150). Each measuring device evaluates the transmission characteristics of the terminal device 1 based on the radio signal reconverted by the conversion unit 32 of the signal processing device 3. For example, the reception state of radio waves and the use band are determined based on the measurement results of the spectrum analyzer 5 and the power meter 6. Further, the oscilloscope 7 determines whether a signal is transmitted at an abnormal frequency. Note that the signal processing device 3 may input a wired signal to the measuring device via the wireless method management device 14 and the core network 4 without demodulating the packet.
Each measuring device analyzes the transmission characteristic of the signal input from the signal processing device 3, and transmits the analysis result of the transmission characteristic to the radio system management device 14 directly or via the core network 4 (step S155).

  On the other hand, the monitor terminals 10-1 to 10-n arranged around the terminal device 1 receive the test radio wave transmitted from the terminal device 1 in step S140 based on the notified setting parameter and the designated launch period. Receive. The monitor terminals 10-1 to 10-n analyze transmission characteristics such as unnecessary emission such as spurious emission and out-of-band emission of the test radio wave and signal quality, and send the analysis result of the transmission characteristics via the radio base station 2. It transmits to the radio | wireless system management apparatus 14 (step S160). In addition, since the installation locations of the radio base station 2 and the monitor terminals 10-1 to 10-n are specified in advance in the radio system management device 14, they are installed without using a GPS (Global positioning system) or the like. Therefore, the installation location of the terminal device 1 can be estimated.

  Furthermore, the terminal device 1 transmits a connection test signal, and the radio reception unit 21 of the radio base station 2 transmits the connection test signal to the signal processing device 3. The conversion unit 32 of the signal processing device 3 reconverts the wired signal converted in the wireless base station 2 into a wireless signal, and obtains the technical standard conformity certification of the wireless standard set in the connection request. A connection test is performed by transmitting the re-converted connection test signal to i (i is any one of 1 to n) (step S165). The conversion unit 32 of the signal processing device 3 notifies the wireless system management device 14 of the connection test result (step S170).

The measurement result acquisition unit 143 of the wireless system management device 14 transmits the transmission characteristics received from the monitor terminals 10-1 to 10-n and the measuring device and the result of the connection test with the reference terminals 8-1 to 8-n as a wireless standard database. 12 is inquired as to whether or not the technical standards are met (step S175). The wireless standard database 12 compares the transmission characteristics and connection test results received from the wireless system management device 14 with the stored technical standard conformity certification recognition conditions to determine whether the technical standards conformity has passed or not. Is notified to the wireless system management device 14 (step S180). The authentication result acquisition unit 144 of the wireless system management device 14 receives the result of the pass / fail determination from the wireless standard database 12, and if the result is acceptable, the certification authority 9 The signal transmission is permitted as it is (step S185). On the other hand, when the result is unsuccessful, the authentication result acquisition unit 144 of the wireless method management device 14 instructs to stop transmission.
The terminal device 1 permitted to transmit signals performs communication via the radio base station 2 (step S190).

  By distinguishing the connection request, test radio wave, and connection test signal input of a plurality of different terminal devices 1 using the identification number of the terminal device 1, the identification number of the wireless base station 2 and a time stamp, etc. The terminal device 1 can be tested.

In addition, in the communication after the technical standard conformity certification of the terminal device 1 is authorized, the monitor terminal 10 and the radio system management device 14 monitor the radio waves of the terminal device 1 so that the time rate of radio wave use can be calculated. Monitoring for compliance with standards is also possible.
In addition, the wireless standard database 12 of the registration certification authority is registered with the wireless standards of each country in the world, or the technical standards that can be used in various countries according to the requirements by collaborating with the registration certification authorities of each country. It becomes possible to give a pass / fail of conformity.

  In the past, companies obtained certification of technology conformity by bringing terminal equipment to a registration certification organization and evaluating radio characteristics, but this took time and effort for application procedures and certification tests, It took several months to register. Although it is conceivable to remotely evaluate the radio characteristics related to technical conformity certification, it is difficult to bring out the technology necessary for the evaluation, and there is a possibility that testing is not actually performed at the place where the business operator applied Therefore, there was a problem that the reliability was low.

  Therefore, in this embodiment, by using a flexible wireless system and arranging a monitor device, it is possible to evaluate wireless characteristics remotely, and improve the reliability of the test. In other words, when a business operator or the like requests an evaluation of the wireless characteristics of a certain terminal device 1 at a predetermined location, the wireless system management device 14 that is the subject of the evaluation sets the frequencies that can be used at that location to the wireless standard database 12. The frequency obtained as a result of the inquiry is notified to the radio base station 2 including the terminal device 1 in the service area. Thereby, the radio base station 2 transmits the setting parameter of the test radio wave read from the radio standard database 12 by the radio system management device 14 to the terminal device 1 using the vacant frequency. The terminal device 1 transmits a test radio wave with the vacant frequency notified by the setting parameter, and the radio base station 2 receives the test radio wave with the vacant frequency notified by the setting parameter. The radio base station 2 transfers the test signal to the signal processing device 3 as radio data of a wired signal, and the signal processing device 3 converts the acquired radio wave data into a radio signal again and inputs it to the measuring instrument. Evaluate. The wireless system management device 14 inquires of the wireless standard database 12 whether the evaluation result satisfies the conformance standard. With this configuration, it is possible to remotely evaluate the wireless characteristics of the terminal device 1 without taking out a measuring instrument.

  However, in the above configuration, since it is possible to input radio wave data of the test radio wave to the signal processing device 3 by another route, there remains a problem that the data reliability is low. Therefore, in the present embodiment, the monitor terminals 10-1 to 10-n installed around the radio base station 2 receive the test radio wave from the terminal device 1 and the radio system management device 14 is tested. By notifying the fact, the location of the test is guaranteed.

FIG. 3 is a block diagram showing the configuration of the wireless characteristic evaluation system according to the second embodiment of the present invention. In FIG. 3, the same parts as those in the first embodiment shown in FIG. The description is omitted. The wireless characteristic evaluation system shown in the figure is different from the wireless characteristic evaluation system of the first embodiment shown in FIG. 1 in that the terminal device 1a is connected to the core network 4 instead of the terminal device 1. In other words, a wireless system management device 14 a is provided instead of the wireless system management device 14. The wireless system management device 14a differs from the wireless system management device 14 of the first embodiment in that a notification unit 142a is provided instead of the notification unit 142, and an authentication result acquisition unit 144a is provided instead of the authentication result acquisition unit 144. Is a point.
Hereinafter, the difference from the first embodiment will be mainly described.

  In the first embodiment, the terminal device 1 transmits a connection request signal at a frequency specified by the wireless system management device 14. On the other hand, in the present embodiment, the terminal device 1 a notifies the connection request signal to the wireless method management device 14 a via the core network 4 in a wired manner. Therefore, the notification unit 142a of the wireless system management device 14a does not need to notify the terminal device 1a of the available frequencies via the wireless base station 2. In addition, the authentication result acquisition unit 144a of the wireless method management device 14a notifies the terminal device 1a of the pass / fail judgment result of conformity with the technical standards. Other than that, the terminal device 1a and the wireless system management device 14a operate in the same manner as the terminal device 1 and the wireless system management device 14 of the first embodiment, respectively.

FIG. 4 is a block diagram showing the configuration of the wireless characteristic evaluation system according to the third embodiment of the present invention. In FIG. 4, the same parts as those in the first embodiment shown in FIG. The description is omitted. The wireless characteristic evaluation system shown in FIG. 1 differs from the wireless characteristic evaluation system of the first embodiment shown in FIG. 1 in that a wireless base station 2, a signal processing device 3, and a wireless system management device 14 The base station 2b is provided. The radio base station 2b includes a radio reception unit 21b, a radio transmission unit 22b, a signal processing device 3b, and a radio system management device 14b.
Hereinafter, the difference from the first embodiment will be mainly described.

  In the present embodiment, the radio signal received by the radio reception unit 21b of the radio base station 2b is input to the signal processing device 3b without being subjected to optical / electrical conversion and electrical / optical conversion. Further, the wireless transmission unit 22b relays the signal input from the signal processing device 3b to the terminal device 1 and the monitor terminals 10-1 to 10-n using a wireless signal.

The signal processing device 3b includes a relay unit 31b and a conversion unit 32b. The relay unit 31b outputs the signal received from the wireless reception unit 21b to the wireless method management device 14b, and outputs the signal received from the wireless method management device 14b to the wireless transmission unit 22b. When receiving the test radio wave, the conversion unit 32 b outputs the test radio wave to a measuring instrument such as the spectrum analyzer 5, the power meter 6, and the oscilloscope 7 directly or via the core network 4.
The analysis result by the measuring instrument is input to the wireless system management apparatus 14b directly or via the core network 4.

  The wireless system management device 14b has the same configuration as the wireless system management device 14 of the first embodiment, except that it is connected to a signal processing device 3b provided in the wireless base station 2b.

  The operation of the wireless characteristic evaluation system of this embodiment other than the above is the same as the operation of the wireless characteristic evaluation system of the first embodiment. That is, except for the above, the radio reception unit 21b, the radio transmission unit 22b, the signal processing device 3b, and the radio system management device 14b of the radio base station 2b are the same as the radio reception unit 21, the radio transmission unit 22, It operates in the same manner as the signal processing device 3 and the radio system management device 14.

FIG. 5 is a block diagram showing the configuration of the wireless characteristic evaluation system according to the fourth embodiment of the present invention. In FIG. 5, the same parts as those of the third embodiment shown in FIG. The description is omitted. The wireless characteristic evaluation system of this embodiment shown in the figure is different from the wireless characteristic evaluation system of the third embodiment shown in FIG. 4 in that the evaluation object is connected to the core network 4 instead of the terminal device 1. This is a terminal device 1c.
Hereinafter, the difference from the third embodiment will be mainly described.

The terminal device 1c outputs the electric signal of the test radio wave immediately before being transmitted from the antenna to the measuring device via the core network 4 by wire such as a coaxial cable as it is. Thus, each measuring device measures the radio wave characteristics from the received electrical signal.
Other operations of the wireless characteristic evaluation system of this embodiment are the same as those of the wireless characteristic evaluation system of the first embodiment or the third embodiment.

  As described above, according to the present embodiment, the wireless characteristics of the terminal device are remotely evaluated by using the frequency that can be used in a place where the terminal device requiring the technical standard conformity certification exists. As a result, even when the available frequency band varies depending on the region and time, it is possible to perform technical standard conformity certification for the terminal device for each transmission request. Therefore, it is possible to shorten the time from application for use authorization to authorization, and to set a radio wave usage fee considering the time rate. In addition, by refunding the registration application fee for radio monitoring of the monitor terminal, the registration application becomes easy, the use of the wireless terminal is promoted, and the frequency is effectively used.

  The wireless system management devices 14, 14a, 14b described above have a computer system inside. The processes of the update unit 141, the notification units 142 and 142a, the measurement result acquisition unit 143, and the authentication result acquisition units 144 and 144a are stored in a computer-readable recording medium in the form of a program. The above processing is performed by reading and executing the computer system. The computer system here includes a CPU, various memories, an OS, and hardware such as peripheral devices.

Further, the “computer system” includes a homepage providing environment (or display environment) if a WWW system is used.
The “computer-readable recording medium” refers to a storage device such as a flexible medium, a magneto-optical disk, a portable medium such as a ROM and a CD-ROM, and a hard disk incorporated in a computer system. Furthermore, the “computer-readable recording medium” dynamically holds a program for a short time like a communication line when transmitting a program via a network such as the Internet or a communication line such as a telephone line. In this case, a volatile memory in a computer system serving as a server or a client in that case, and a program that holds a program for a certain period of time are also included. The program may be a program for realizing a part of the functions described above, and may be a program capable of realizing the functions described above in combination with a program already recorded in a computer system.

1, 1a, 1c Terminal equipment (terminal station equipment)
2, 2b Wireless base station (base station device)
3, 3b Signal processing device 4 Core network 5 Spectrum analyzer (measuring device)
6 Power meter (measuring device)
7 Oscilloscope (measuring device)
8-1 to 8-n Reference terminal 9 Registration certification authority 10-1 to 10-n Monitor terminal 11 Frequency management database (database)
12 Wireless standard database (database)
13 Optical fiber 14, 14a, 14b Wireless system management device 21, 21b Wireless reception unit 22, 22b Wireless transmission unit 31, 31b Relay unit 32, 32b Conversion unit 100 Terminal equipment (terminal station device)
141 Update unit 142, 142a Notification unit 143 Measurement result acquisition unit 144, 144a Authentication result acquisition unit

Claims (4)

A radio station evaluation system that has a base station apparatus, a signal processing apparatus, a radio system management apparatus, a measurement apparatus, and a database, and evaluates radio characteristics of the radio station apparatus,
The database stores location information and available frequencies in association with each other, and stores setting parameters including at least frequencies used for transmission of test radio waves,
The wireless method management device
The usable frequency is set among the frequencies used for transmitting the test radio wave obtained based on the usable frequency stored in the database corresponding to the location information of the base station device and the setting parameter. A notification unit for notifying the wireless communication device and the base station device of the setting parameter;
A measurement result acquisition unit for obtaining a measurement result of the radio characteristics measured by the measurement device based on radio wave data indicating a radio wave state of a test radio wave transmitted by the radio station device;
The base station apparatus includes a radio reception unit that receives a test radio wave transmitted using the setting parameter from the terminal station apparatus and outputs radio data of the received test radio wave to the signal processing apparatus,
The signal processing device includes:
A conversion unit that converts radio wave data input from the base station device into a radio signal and inputs the radio signal to the measurement device;
A wireless characteristic evaluation system characterized by that. The notification unit acquires available frequencies from the database based on information on the position of the base station device, and outputs the available frequencies to the base station device,
The base station device further includes a wireless transmission unit that notifies the wireless station device of a wireless method to be used for a setting parameter inquiry signal according to the available frequency received from the wireless method management device,
The wireless reception unit outputs a setting parameter inquiry signal received from the wireless station device to the wireless method management device by the notified wireless method,
The wireless characteristic evaluation system according to claim 1. Furthermore, a monitor device installed around the base station device,
The monitor device analyzes unnecessary emission and signal quality of the test radio wave received from the radio station device, and transfers the signal to the radio system management device.
The wireless characteristic evaluation system according to claim 1, wherein the wireless characteristic evaluation system is a wireless characteristic evaluation system. A radio characteristic evaluation method for a radio characteristic evaluation system comprising a base station apparatus, a signal processing apparatus, a radio system management apparatus, a measurement apparatus, and a database,
The database stores location information and available frequencies in association with each other, and stores setting parameters including at least frequencies used for transmission of test radio waves,
Of the frequencies used for the transmission of the test radio wave, which is obtained based on the available frequencies stored in the database corresponding to the location information of the base station device and the setting parameters, in the radio system management device A notification step of notifying the radio station apparatus and the base station apparatus of the setting parameter in which an available frequency is set;
The base station device receives a test radio wave transmitted using the setting parameter from the terminal station device, and outputs a radio wave data indicating a radio wave state of the received test radio wave to the signal processing device;
The signal processing device converts the radio wave data input from the base station device into a radio signal and inputs it to the measurement device; and
The wireless method management device obtains a measurement result of wireless characteristics measured by the measurement device based on the radio wave data, and a measurement result acquisition step;
A wireless characteristic evaluation method comprising:

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