JP6502306B2 - Wireless communication device, system, method and program - Google Patents

Description

  The present invention relates to a wireless communication apparatus, system, method and program for measuring communication quality of wireless communication.

  In recent years, with wireless LAN (Local Area Network) access points installed in each home, the number of belonging wireless handsets has increased, and in addition to personal computers (PCs), DVD (Digital Versatile Disc) players, household appliances, etc. It is designed to be connected to various types of devices.

  On the other hand, when the user tries to install an access point (hereinafter referred to as AP (Access Point)) at an appropriate installation site, for example, communication performance measured by each terminal (hereinafter referred to as STA (Station)) There is a method to determine the installation location of the AP by checking the strength and the like. The communication performance can be measured, for example, by a method in which the STA is made to access the line speed measurement site via the AP by the operation of the user and the speed test is performed.

  However, in these methods, when there are many STAs belonging to the AP, it is laborious to measure the communication performance and radio strength between all the STAs and the AP. In addition, since the measurement result of each STA is notified (displayed) to each STA, it is also laborious in that it is necessary for the user to make a note of the measurement result or the like to collect information.

  On the other hand, in the method described in Patent Document 1, the STA measures the communication quality and transmits the measurement result to the policy management apparatus in order to optimize the communication policy. As in this method, it is possible to reduce the effort of the user in the measurement of communication quality by the STA measuring the communication quality without the intervention of the user's operation.

JP, 2016-039555, A

  However, according to the method described in Patent Document 1, although it is possible to measure the communication quality between each STA and the AP, a general user without specialized knowledge from the obtained measurement results can It is difficult to determine if the installation location of the is appropriate.

  An object of the present invention is to provide a wireless communication device, system, method and program which allow a user to easily determine whether the installation place of the wireless communication device is appropriate.

  In order to solve the problems described above, a wireless communication apparatus according to the present invention includes a wireless communication unit that performs wireless communication with one or more terminals, and a measurement unit that measures communication quality of the wireless communication with each of the terminals. An evaluation unit that evaluates the quality of the communication quality of the entire wireless communication based on the communication quality of the wireless communication with each of the terminals; and an output unit that outputs the evaluation result. Do.

  The wireless communication method according to the present invention performs wireless communication with one or more terminals, measures communication quality of the wireless communication with each of the terminals, and measures the communication quality of the wireless communication with each of the terminals. The quality of the communication quality of the whole wireless communication is evaluated based on the above, and the evaluation result is output.

  A wireless communication program according to the present invention includes a computer, a wireless communication function for performing wireless communication with one or more terminals, a measurement function for measuring communication quality of the wireless communication with each of the terminals, and An evaluation function for evaluating the quality of the communication quality of the entire wireless communication based on the communication quality of the wireless communication with a terminal and an output function for outputting the evaluation result are realized.

  The wireless communication device, system, method, and program of the present invention allow the user to easily determine whether the installation location of the wireless communication device is appropriate.

It is a figure which shows the structural example of the radio | wireless communication apparatus of 1st and 2nd embodiment of this invention. It is a figure which shows the operation example of the radio | wireless communication apparatus of the 1st-4th embodiment of this invention. It is a figure which shows the structural example of the radio | wireless communications system of 2nd embodiment of this invention. It is a figure which shows the structural example of the radio | wireless communication apparatus of 2nd embodiment of this invention. It is a figure which shows the example of the terminal management table of 2nd embodiment of this invention. It is a figure which shows the structural example of the measurement frame of 2nd embodiment of this invention. It is a figure which shows the structural example of the terminal (STA) of 2nd embodiment of this invention. It is a figure which shows the operation example of the radio | wireless communication apparatus of the 2nd-4th embodiment of this invention. It is a figure which shows the structural example of the radio | wireless communication apparatus of 3rd embodiment of this invention. It is a figure which shows the structural example of the radio | wireless communication apparatus of 3rd embodiment of this invention. It is a figure which shows the example of the terminal management table of 3rd embodiment of this invention. It is a figure which shows the example of the transmission parameter of the measurement flame | frame of 3rd embodiment of this invention. It is a figure which shows the structural example of the measurement frame of 3rd embodiment of this invention. It is a figure which shows the example of the evaluation criteria of 3rd embodiment of this invention. It is a figure which shows the example of the evaluation result of 3rd embodiment of this invention. It is a figure which shows the example of the measurement pattern of 3rd embodiment of this invention. It is a figure which shows the structural example of the radio | wireless communication apparatus of 4th embodiment of this invention. It is a figure which shows the structural example of the radio | wireless communication apparatus of 4th embodiment of this invention. It is a figure which shows the structural example of the terminal (STA) of 4th embodiment of this invention. It is a figure which shows the operation example of the radio | wireless communication apparatus of 4th embodiment of this invention, and a terminal. It is a figure showing an example of hardware constitutions of each embodiment of the present invention.

First Embodiment
A first embodiment of the present invention will be described.

  FIG. 1 shows an example of the configuration of a wireless communication apparatus 10 according to the present embodiment.

  The wireless communication apparatus 10 according to the present embodiment includes a wireless communication unit 11, a measurement unit 12, an evaluation unit 13, and an output unit 14.

  The wireless communication unit 11 is a part that performs wireless communication with one or more terminals. The measurement unit 12 is a part that measures communication quality of wireless communication with each terminal. The evaluation unit 13 is a part that evaluates the quality of the overall communication quality of the wireless communication based on the communication quality of the wireless communication with each terminal. The output unit 14 is a part that outputs an evaluation result.

  By configuring the wireless communication device 10 in this manner, the wireless communication device 10 measures the communication quality of wireless communication with each terminal, and based on the communication quality of wireless communication with each terminal, the entire wireless communication. It evaluates the quality of communication quality and outputs the evaluation result. As a result, the user can know the evaluation result of the communication quality of the entire wireless communication performed by the wireless communication device 10. Therefore, the user can easily determine whether the installation place of the wireless communication apparatus is appropriate.

  Next, FIG. 2 shows an example of the operation of the wireless communication device 10 of the present embodiment.

  First, the measurement unit 12 of the wireless communication device 10 measures the communication quality of wireless communication with each terminal (step S101). Next, the evaluation unit 13 evaluates the quality of the overall communication quality of the wireless communication based on the communication quality of the wireless communication with each terminal (step S102). Then, the output unit 14 outputs the evaluation result (step S103).

  By operating in this manner, the wireless communication device 10 measures the communication quality of wireless communication with each terminal, and based on the communication quality of wireless communication with each terminal, the overall communication quality of the wireless communication is good or bad. Evaluate and output the evaluation result. Therefore, the user can easily determine whether the installation place of the wireless communication apparatus is appropriate.

  As described above, in the first embodiment of the present invention, the wireless communication device 10 measures the communication quality of wireless communication with each terminal, and based on the communication quality of wireless communication with each terminal The quality of the communication quality of the whole wireless communication is evaluated, and the evaluation result is output. As a result, the user can know the evaluation result of the communication quality of the entire wireless communication performed by the wireless communication device 10. Therefore, the user can easily determine whether the installation place of the wireless communication apparatus is appropriate.

Second Embodiment
Next, a second embodiment of the present invention will be described. In this embodiment, a more specific example of the wireless communication device 10 of the first embodiment will be described.

  First, FIG. 3 shows a configuration example of the wireless communication system of the present embodiment. The wireless communication system of the present embodiment includes the wireless communication device 10, the terminal 60A, the terminal 60B, and the terminal 60C. In the present embodiment, the wireless communication device 10 is a wireless LAN access point (AP), the terminal 60A, the terminal 60B, and the terminal 60C are wireless LAN slave devices (STAs). Although three STAs belong to the wireless communication apparatus 10 in the example of FIG. 3, one or more STAs may belong to the wireless communication apparatus 10 instead of three.

  Next, a configuration example of the wireless communication device 10 will be described using FIG.

  The wireless communication unit 11 is a part that performs wireless communication with one or more STAs. In the present embodiment, the wireless communication unit 11 performs wireless communication with the terminal 60A, the terminal 60B, and the terminal 60C. Further, in the present embodiment, wireless communication is wireless LAN communication.

  The measurement unit 12 is a part that measures communication quality of wireless communication with each of the terminal 60A, the terminal 60B, and the terminal 60C. The evaluation unit 13 is a part that evaluates the communication quality of the entire wireless communication performed by the wireless communication device 10 based on the communication quality of the wireless communication with each of the terminal 60A, the terminal 60B, and the terminal 60C. That is, the evaluation unit 13 evaluates the communication quality of the wireless communication of the entire wireless communication system of FIG. 3.

  The output unit 14 is a part that outputs an evaluation result. For example, the output unit 14 causes the display device (such as a display) on the wireless communication device 10 to display the evaluation result. Alternatively, an evaluation result is output to a light emitting diode (LED) on the wireless communication device 10 according to the lighting pattern or the color. It is also possible that the evaluation unit 13 holds the evaluation result, and the output unit 14 acquires and outputs the evaluation result from the evaluation unit 13 when the user requests via the Web GUI (Graphical User Interface) or the like. is there.

  Next, a more specific configuration example of the measurement unit 12 of the wireless communication device 10 of the present embodiment will be described using FIG. 4. The radio communication apparatus 10 according to the present embodiment measures throughput, latency and jitter as communication quality.

  The measurement unit 12 includes a transmission management unit 110, a reception management unit 120, and a measurement management unit 130. The transmission management unit 110 includes a transmission rate control unit 111 and a frame generation unit 112. The reception management unit 120 includes a reception time acquisition unit 121, a communication quality type determination unit 122, a throughput calculation unit 123, and a latency and jitter calculation unit 124. The measurement management unit 130 includes a terminal management table storage unit 131, a measurement status management unit 132, and a measurement result storage unit 133.

  The terminal management table storage unit 131 of the measurement management unit 130 is a part that stores a terminal management table that is information of the STA belonging to the wireless communication device 10. The terminal management table storage unit 131 receives, from the wireless communication unit 11, information on STAs belonging to the wireless communication apparatus 10 and stores the information.

  FIG. 5 shows an example of the terminal management table. The terminal management table is information including identification information of the STA belonging to the wireless communication apparatus 10. The identification information of the STA is, for example, a MAC (Media Access Control) address of the STA. In the example of FIG. 5, the terminal management table storage unit 131 stores the MAC addresses of the terminal 60A, the terminal 60B, and the terminal 60C.

  The measurement status management unit 132 is a part that manages the measurement status of communication quality. The measurement status management unit 132 manages the measurement status of communication quality for each STA belonging to the wireless communication device 10, and passes the communication quality to the evaluation unit 13 when the measurement is completed.

  The measurement status management unit 132 instructs the transmission rate control unit 111 and the frame generation unit 112 to transmit a measurement frame for measuring communication quality for each STA belonging to the wireless communication device 10. At this time, the measurement status management unit 132 notifies the transmission rate control unit 111 and the frame generation unit 112 of the information on the destination STA of the measurement frame and the type of communication quality to be measured.

  In the case of this embodiment, the measurement status management unit 132 acquires the information (for example, FIG. 5) of the STAs belonging to the wireless communication device 10 from the terminal management table storage unit 131 and sequentially designates each STA as a destination STA. . Further, as the communication quality type, throughput, or latency and jitter are sequentially designated. Here, the purpose of designating the communication quality type is to change the transmission rate of the measurement frame to be transmitted by the transmission rate control unit 111 in the case of throughput measurement and in the case of latency and jitter measurement.

  Further, the measurement status management unit 132 stores the measurement result (communication quality) received from the throughput calculation unit 123 and the latency and jitter calculation unit 124 in the measurement result storage unit 133. In addition, when the measurement status management unit 132 acquires the information of the STA belonging to the wireless communication device 10 from the terminal management table storage unit 131 and the measurement of the communication quality for each of the STAs belonging to the wireless communication device 10 is completed, The measurement result of the measurement result storage unit 133 is passed to the evaluation unit 13.

  The transmission management unit 110 is a portion that transmits a measurement frame for communication quality measurement via the wireless communication unit 11 in accordance with an instruction from the measurement status management unit 132. The frame generation unit 112 of the transmission management unit 110 is a unit that generates a predetermined measurement frame in accordance with an instruction from the measurement status management unit 132. Further, the transmission rate control unit 111 is a part that transmits a measurement frame at a predetermined transmission rate via the wireless communication unit 11 according to an instruction from the measurement status management unit 132. The frame generation unit 112 and the transmission rate control unit 111 transmit measurement frames for a predetermined number of frames or for a predetermined time.

  The structural example of the measurement frame of this embodiment is shown in FIG. The measurement frame is composed of a header part and a data part. The header portion includes a destination MAC address and a source MAC address. The destination MAC address stores the MAC address of the STA whose communication quality is to be measured, and the source MAC address stores a predetermined measurement MAC address.

  The Data portion of the measurement frame is composed of a start bit, an end bit, a communication quality type indicating the type of communication quality, a transmission time of the frame, and padding for adjusting the frame size. The start bit indicates that it is the first frame, and the end bit indicates that it is the last frame. Random data is stored in the padding portion so as to be close to a frame communicated in a real use environment.

  When the communication quality type is throughput, the transmission rate control unit 111 transmits a measurement frame at a relatively high transmission rate so that the throughput can be measured at a data rate that can be actually transmitted and received. Also, when the communication quality type is latency and jitter measurement, latency and jitter can not be measured accurately if packet loss occurs, so measurement is performed at a low transmission rate without packet loss, for example, 10 pps (packet par second) Send a frame

  The wireless communication unit 11 confirms the destination MAC address of the received frame, and transfers the received frame to the reception time acquisition unit 121 of the reception management unit 120 if the destination MAC address is the MAC address for the measurement frame.

  The reception time acquisition unit 121 is a part that acquires the reception time of a frame.

  The communication quality type determination unit 122 determines whether the measurement frame is a measurement frame for throughput measurement or a measurement frame for latency and jitter measurement. If the measurement frame is a measurement frame for throughput measurement, the measurement frame is transferred to the throughput calculation unit 123. If the measurement frame is a measurement frame for latency and jitter measurement, the measurement frame is transferred to the latency and jitter calculation unit 124.

  The throughput calculation unit 123 is a unit that measures throughput, and the latency and jitter calculation unit 124 is a unit that measures latency and jitter. Then, the throughput calculation unit 123 and the latency and jitter calculation unit 124 pass the calculated communication quality to the measurement status management unit 132.

The throughput calculation unit 123 can calculate the throughput by Equation 1 to Equation 3.
Measurement frame reception amount = number of received frames × frame size (Equation 1)
Communication time = end frame reception time−start frame reception time (Equation 2)
Throughput = amount of measurement frame received / communication time (Equation 3)
The start frame and the end frame can be determined from the start bit and the end bit of the measurement frame.

Further, the latency and jitter calculation unit 124 can calculate the latency and jitter by the following method. The latency can be calculated by first calculating the round-trip time of each frame by Equation 4 and calculating the average of the round-trip time from the start frame to the end frame. Also, the jitter can be calculated by Equation 5.
Round trip time = reception time-transmission time (Equation 4)
Jitter = maximum value of round trip time−minimum value of round trip time (Equation 5)
Next, an example of the evaluation method of the evaluation unit 13 will be described.

  First, the evaluation unit 13 evaluates each of the communication qualities received from the measurement unit 12 in comparison with a predetermined evaluation standard. In the case of measuring the throughput, latency and jitter in the wireless communication system of FIG. 3, the throughput, latency and jitter are respectively evaluated for the terminal 60A, the terminal 60B and the terminal 60C. For example, the throughput is evaluated in four stages of evaluations A, B, C, and X from the one with the larger throughput compared to the evaluation criteria. Latency and jitter are evaluated in four stages of evaluation A, B, C, and x from the smaller value, respectively. If the measurement result can not be normally obtained, for example, if communication with the STA can not be performed, evaluation for all STAs is evaluated as x.

  Then, the evaluation unit 13 integrates the evaluations of the respective STAs to evaluate the entire wireless communication. For example, the evaluation unit 13 calculates the entire evaluation result by scoring and averaging each evaluation. For example, assuming that the evaluation A is 3 points, the evaluation B is 2 points, and the evaluation C is 1 point, the average of the points of each evaluation result is calculated to be the whole evaluation result. Moreover, it is good also considering what evaluated this average value in several steps further as an evaluation result. If there is an STA for which the measurement result can not be obtained normally, the installation position of the wireless communication apparatus 10 is not appropriate, and therefore, it may be set as 0 point or the lowest evaluation rank (evaluation x).

  Next, FIG. 7 shows a configuration example of the terminal 60 (60A, 60B, 60C). The terminal 60 is configured of a wireless communication unit 61 and a frame processing unit 62.

  The wireless communication unit 61 is a part that performs wireless communication with the wireless communication device 10. Further, the wireless communication unit 61 determines whether the received frame is a measurement frame, and transfers the received frame to the frame processing unit 62 when the received frame is a measurement frame. Whether or not the received frame is a measurement frame is determined based on whether or not the source MAC address of the received frame is a measurement MAC address.

  The frame processing unit 62 is a part that sends the measurement frame back to the wireless communication device 10 via the wireless communication unit 61. At this time, in the frame processing unit 62, the destination MAC address and the transmission source MAC address of the received frame are exchanged and passed to the wireless communication unit 61.

  By configuring the wireless communication device 10 in this manner, the wireless communication device 10 measures the communication quality of wireless communication with each terminal, and based on the communication quality of wireless communication with each terminal, the entire wireless communication. It evaluates the quality of communication quality and outputs the evaluation result. As a result, the user can know the evaluation result of the communication quality of the entire wireless communication performed by the wireless communication device 10. Therefore, the user can easily determine whether the installation place of the wireless communication apparatus is appropriate.

  Further, the wireless communication device 10 of the present embodiment transmits a measurement frame to each STA, and measures communication quality by the returned measurement frame. When the STA accesses the line speed measurement site via AP and measures the communication quality, it may not be able to accurately measure the communication quality due to the influence of the wide area network (WAN) or the communication status of the line speed measurement site. is there. On the other hand, the wireless communication device 10 of this embodiment can accurately measure the communication quality between the AP and the STA without being affected by the communication status of the WAN or the line speed measurement site.

  Further, in the wireless communication apparatus 10 according to the present embodiment, the communication quality of the entire wireless communication performed by the AP without collecting evaluation results of the STAs is measured by the AP measuring the communication quality of the wireless communication with each STA. It becomes possible to evaluate easily.

  Also, the wireless communication device 10 of the present embodiment uses three indicators of throughput, latency and jitter as communication quality, and evaluates these indicators in a comprehensive manner. As a result, the quality of the installation location can be evaluated more accurately than when the quality of communication quality is evaluated by one index.

  Next, an operation example of the wireless communication device 10 according to the present embodiment will be described with reference to FIG.

  First, the measurement unit 12 of the wireless communication device 10 measures the communication quality of the wireless communication for each of the terminal 60A, the terminal 60B, and the terminal 60C by the user's start operation or the like (step S101). The start operation of the user may be, for example, the operation of the button of the wireless communication device 10 or the operation from the Web GUI.

  Next, the evaluation unit 13 evaluates the communication quality of the entire wireless communication based on the communication quality of each of the terminal 60A, the terminal 60B, and the terminal 60C (step S102). Then, the output unit 14 outputs the evaluation result (step S103).

  In response to this result, the user changes the installation place of the wireless communication apparatus 10 and performs evaluation again, and sets the place where the satisfied evaluation result is obtained as the installation place of the wireless communication apparatus 10. Further, it is also possible that the evaluation unit 13 stores the past evaluation results, and the output unit 14 acquires the evaluation results at the past installation place from the evaluation unit 13 and outputs the evaluation results at the request of the user. In this case, by comparing the evaluation results by the user, it becomes possible to select a place where better communication quality can be secured among the installation places where the evaluation is performed.

  Next, a more specific operation example of measurement of communication quality of each terminal (step S101 in FIG. 2) will be described using FIG.

  First, the terminal management table storage unit 131 acquires the information of the belonging STA from the wireless communication unit 11 by the user operation or the like.

  Then, the measurement status management unit 132 measures communication quality for all combinations of STAs and communication quality types. In this embodiment, since there are three STAs (terminal 60A, terminal 60B, terminal 60C) and two communication quality types (throughput, latency and jitter), a total of six types of communication quality are measured.

  First, the measurement status management unit 132 instructs the frame generation unit 112 and the transmission rate control unit 111 to transmit a measurement frame for throughput measurement for the terminal 60A. The frame generation unit 112 generates a measurement frame whose destination is the MAC address of the terminal 60A and the transmission source is the MAC address for measurement, and the transmission rate control unit 111 transmits the measurement frame via the wireless communication unit 11 (step S201). ). When the wireless communication unit 61 receives the measurement frame, the terminal 60A transmits, to the wireless communication apparatus 10, a frame in which the destination MAC address and the transmission source MAC address are switched.

  When receiving the measurement frame from the terminal 60A, the wireless communication unit 11 transfers the measurement frame to the reception time acquisition unit 121. The reception time acquisition unit 121 acquires the reception time of the measurement frame, and transfers the measurement frame to the communication quality type determination unit 122. The communication quality type determination unit 122 determines the communication quality type of the received measurement frame, and transfers the measurement frame to the throughput calculation unit 123 because the measurement frame is for throughput measurement. The throughput calculation unit 123 measures the throughput, and passes the measurement result (throughput) to the measurement status management unit 132. Then, the measurement status management unit 132 stores the throughput of the terminal 60A in the measurement result storage unit 133 (step S202).

  Next, the measurement status management unit 132 instructs the frame generation unit 112 and the transmission rate control unit 111 to transmit a measurement frame for measuring latency and jitter for the terminal 60A. The frame generation unit 112 generates a measurement frame whose destination is the MAC address of the terminal 60A and the transmission source is the MAC address for the measurement frame, and the transmission rate control unit 111 transmits the measurement frame via the wireless communication unit 11 (step S203). Similar to the measurement frame for throughput measurement, the terminal 60A transmits, to the radio communication apparatus 10, a measurement frame frame for latency and jitter measurement in which the destination MAC address and the transmission source MAC address are switched.

  When receiving the measurement frame from the terminal 60A, the wireless communication unit 11 transfers the measurement frame to the reception time acquisition unit 121. The reception time acquisition unit 121 acquires the reception time of the measurement frame, and transfers the measurement frame to the communication quality type determination unit 122. The communication quality type determination unit 122 transfers the measurement frame to the latency and jitter calculation unit 124 because the received measurement frame is for latency and jitter measurement. The latency and jitter calculation unit 124 measures latency and jitter, and passes measurement results (latency and jitter) to the measurement status management unit 132. Then, the measurement status management unit 132 stores the latency and jitter of the terminal 60A in the measurement result storage unit 133 (step S204). At this time, the measurement management unit 132 determines that the measurement of the communication quality of the terminal 60A is completed.

  The measurement status management unit 132 repeats the operation from step S201 to step S204 until the measurement of communication quality is completed for each of the terminal 60A, the terminal 60B, and the terminal 60C (NO in step S205). When measurement of the communication quality is completed for each of the terminals 60A, 60B, and 60C (YES in step S205), the measurement status management unit 132 passes the communication quality to the evaluation unit 13.

  By operating in this manner, the wireless communication device 10 measures the communication quality of wireless communication with each terminal, and based on the communication quality of wireless communication with each terminal, the overall communication quality of the wireless communication is good or bad. Evaluate and output the evaluation result. Therefore, the user can easily determine whether the installation place of the wireless communication apparatus is appropriate.

  As described above, in the second embodiment of the present invention, as in the first embodiment, the wireless communication device 10 measures the communication quality of wireless communication with each terminal, and The quality of the overall communication quality of the wireless communication is evaluated based on the communication quality of the wireless communication, and the evaluation result is output. As a result, the user can know the evaluation result of the communication quality of the entire wireless communication performed by the wireless communication device 10. Therefore, the user can easily determine whether the installation place of the wireless communication apparatus is appropriate.

  In addition, when the STA accesses the line speed measurement site via the AP to measure the communication quality, there is a possibility that the communication quality can not be accurately measured due to the influence of the communication state of the WAN or the line speed measurement site. On the other hand, the wireless communication device 10 according to the present embodiment transmits a measurement frame to each STA, and measures communication quality based on the returned measurement frame. Therefore, the wireless communication apparatus 10 according to the present embodiment can measure the communication quality between the AP and the STA more accurately without being affected by the communication state of the WAN or the line speed measurement site.

  Further, in the wireless communication apparatus 10 according to the present embodiment, the communication quality of the entire wireless communication performed by the AP without collecting evaluation results of the STAs is measured by the AP measuring the communication quality of the wireless communication with each STA. It becomes possible to evaluate easily.

  Also, the wireless communication device 10 of the present embodiment uses three indicators of throughput, latency and jitter as communication quality, and evaluates these indicators in a comprehensive manner. As a result, the quality of the installation location can be evaluated more accurately than when the quality of communication quality is evaluated by one index.

Third Embodiment
Next, the third embodiment of the present invention will be described. The present embodiment is an embodiment in which transmission parameters and evaluation criteria of measurement frames are changed according to the usage of the STA.

  The wireless communication device 10 according to the second embodiment transmits the measurement frame of the same transmission parameter to each STA to measure the communication quality, and evaluates the obtained measurement result based on the same evaluation criteria. However, since the usage application varies depending on the STA, data to be transmitted and received varies depending on the usage application. For example, data transmitted and received by voice over voice protocol (VoIP: Voice over Internet Protocol) is slow and data size is small. On the other hand, data transmitted and received in file transfer may be high speed and may have a large data size. Therefore, when the communication quality is evaluated with a uniform measurement frame, there is a possibility that communication quality different from the communication quality in the frame transmitted and received by the STA in the actual use environment may be obtained.

  Also, since the usage applications vary depending on the STA, the required communication quality also varies. For example, for STAs used for voice calls, high throughput is not necessary, but low latency and jitter are desirable. On the other hand, for the STA used for file transfer, although it is desirable that the throughput be high, the latency and jitter may be somewhat large. Therefore, if the STA evaluates the communication quality on the basis of the evaluation criteria suitable for the actual use environment, the AP can be installed at the installation position more suitable for the actual use environment.

  In consideration of the above, in the present embodiment, the user sets the use application of each STA to the AP, and the AP transmits the measurement frame with transmission parameters according to the use application, and the obtained communication quality Evaluate on the basis of evaluation criteria according to the application. This makes it possible to measure and evaluate communication quality suitable for the actual use environment.

  First, FIG. 9 shows a configuration example of the wireless communication device 20 of the present embodiment. The wireless communication device 20 according to the present embodiment includes a wireless communication unit 11, a measurement unit 22, an evaluation unit 23, and an output unit 14. The wireless communication unit 11 and the output unit 14 are the same as those in the second embodiment, and thus the description thereof is omitted.

  FIG. 10 shows a more specific configuration example of the measurement unit 22. As shown in FIG. The measurement unit 22 includes a transmission management unit 110, a reception management unit 120, and a measurement management unit 230. The transmission management unit 110 and the reception management unit 120 are the same as those in the second embodiment, and thus the description thereof is omitted.

  The measurement management unit 230 includes a terminal management table storage unit 231, a measurement status management unit 232, a measurement result storage unit 133, and a transmission parameter storage unit 234.

  The terminal management table storage unit 231 is a part that stores a terminal management table that is information on STAs belonging to the wireless communication device 10, as in the second embodiment.

  FIG. 11 shows an example of the terminal management table of the present embodiment. The terminal management table of this embodiment includes the usage of each STA in addition to the identification information of the STA belonging to the wireless communication device 20. The usage application is the main usage application of each STA, and in this embodiment, the user selects the usage application of each STA and sets it in the wireless communication apparatus 20. For example, moving image viewing, voice calling, file transfer, online game, etc. can be considered as candidates for use that can be selected.

  The terminal management table storage unit 231 stores information on STAs belonging to the wireless communication device 20. The terminal management table storage unit 231 stores the usage application selected by the user, for example, when the user sets the setting using a Web GUI or the like.

  The transmission parameter storage unit 234 is a part that stores transmission parameters of the measurement frame according to the use purpose.

  FIG. 12 shows an example of transmission parameters. The transmission parameter storage unit 234 stores the Data portion size and the transmission rate as transmission parameters for each usage. The transmission rate in FIG. 12 is a transmission rate for throughput measurement. In the transmission parameters, values based on the characteristics of communication data handled in each usage are registered in advance. The user may be able to set transmission parameters.

  Hereinafter, in the present embodiment, it is assumed that the transmission parameter storage unit 234 has three settings of video viewing, voice communication, and file transfer as usage applications.

  As in the second embodiment, the measurement status management unit 232 is a part that manages the measurement status of communication quality. In the present embodiment, the measurement status management unit 232 acquires the use application of each STA from the terminal management table storage unit 231, and acquires a transmission parameter according to the use application from the transmission parameter storage unit 234. Then, the transmission parameter is notified to the transmission rate control unit 111 and the frame generation unit 112 of the transmission management unit 110. However, at the time of latency and jitter measurement, as the transmission rate, a low transmission rate without packet loss, for example, 10 pps is specified.

  The frame generation unit 112 and the transmission rate control unit 111 transmit the measurement frame to the STA in accordance with the instruction from the measurement status management unit 232. The frame generation unit 112 and the transmission rate control unit 111 generate and transmit measurement frames for a predetermined number of frames or for a predetermined time.

  The structural example of the measurement frame of this embodiment is shown in FIG. The measurement frame is composed of a header part and a data part. The header portion includes a destination MAC address and a source MAC address. The destination MAC address stores the MAC address of the STA whose communication quality is to be measured, and the source MAC address stores a predetermined measurement MAC address.

  The Data portion of the measurement frame is composed of a start bit, an end bit, a usage type indicating the usage, a communication quality type indicating the type of communication quality, and a padding for adjusting the frame transmission time and frame size. The start bit indicates that it is the first frame, and the end bit indicates that it is the last frame. Random data is stored in the padding portion so as to be close to a frame communicated in a real use environment.

  Next, the evaluation unit 23 will be described. As in the second embodiment, the evaluation unit 23 is a part that evaluates the communication quality of each STA and evaluates the overall communication quality based thereon. However, the evaluation unit 23 of the present embodiment evaluates the communication quality using a different evaluation standard for each usage.

  FIG. 14 shows an example of the evaluation criteria. In this way, evaluation criteria are provided for each communication quality type and application. In this example, four evaluation criteria of evaluation A, B, C, and X are provided for each communication quality type of each usage. The evaluation standard is set in advance in the evaluation unit 23, but may be set by the user.

  Further, FIG. 15 shows an example of the evaluation result when the communication quality is evaluated based on the evaluation criteria of FIG. First, throughput, latency and jitter are measured for each usage of each STA, and each measurement result is evaluated based on the evaluation criteria of FIG.

  Then, each measurement result is further comprehensively evaluated to be an evaluation A. The comprehensive evaluation can be performed, for example, by scoring each evaluation result, calculating the average of the scores for all the evaluation results, and evaluating the average value according to a predetermined evaluation standard. Moreover, it is also possible to make the calculated average value into a comprehensive evaluation result.

  By configuring the wireless communication device 20 in this manner, the wireless communication device 20 measures the communication quality of wireless communication with each terminal, and based on the communication quality of wireless communication with each terminal, the entire wireless communication. It evaluates the quality of communication quality and outputs the evaluation result. As a result, the user can know the evaluation result of the communication quality of the entire wireless communication performed by the wireless communication device 20. Therefore, the user can easily determine whether the installation place of the wireless communication apparatus is appropriate.

  Further, the wireless communication apparatus 20 of the present embodiment changes the length and transmission rate of the Data portion of the measurement frame in accordance with the usage of the STA. As a result, it is possible to transmit a measurement frame that matches the actual use environment of the STA, and measure the communication quality more accurately.

  Also, the wireless communication device 20 of the present embodiment evaluates communication quality based on an evaluation criterion that matches the usage of the STA. This makes it possible to evaluate whether the communication quality required in the actual use environment is satisfied.

  Next, an operation example of the wireless communication device 20 according to the present embodiment will be described using FIGS. 2 and 8.

  First, it is assumed that the transmission parameters in FIG. 12 are set in advance in the wireless communication apparatus 20 by the user. In addition, the wireless communication unit 11 causes the terminal management table storage unit 231 to store information on STAs belonging to the wireless communication apparatus 20 in advance, and allows the user to use the terminal management table storage unit 231 for each STA. Set Thus, it is assumed that the terminal management table of FIG. 11 is stored in the terminal management table storage unit 231.

  Then, the measurement status management unit 232 starts measurement according to the user's operation or the like (step S101 in FIG. 2).

  When measurement starts, the measurement status management unit 232 acquires, from the terminal management table storage unit 231, information on STAs belonging to the wireless communication device 20 and usage of each STA. In the present embodiment, in order to measure throughput, latency and jitter as communication quality, communication quality is measured by a combination shown in FIG. Alternatively, measurement of communication quality may be performed on each STA for all use applications. In this case, since the number of STAs is three, the usage purpose is three, and the communication quality type is two, the communication quality is measured by a combination of 18 patterns.

  Among the combinations shown in FIG. 16, the measurement status management unit 232 first starts measuring the communication quality when the STA is the terminal 60A, the usage purpose is moving image viewing, and the communication quality type is throughput. The measurement status management unit 232 acquires, from the transmission parameter storage unit 234, transmission parameters when the usage application is moving image viewing, and transmits measurement condition information including the transmission parameters to the transmission management unit 110.

Here, the measurement condition information that the measurement status management unit 232 passes to the transmission management unit 110 specifically includes the following information.
-STA identification information: MAC address of the terminal 60A-Usage: Video viewing-Communication quality type: Throughput-Data partial size: 1500 bytes
・ Transmission rate: 10Mbps
When the transmission management unit 110 receives the measurement condition information from the measurement status management unit 232, the transmission management unit 110 starts transmission of the measurement frame (step S201 in FIG. 8).

  When receiving the measurement condition information from the measurement status management unit 232, the frame generation unit 112 of the transmission management unit 110 generates a measurement frame as shown in FIG. At this time, the MAC address of the terminal 60A is stored in the destination MAC address of the measurement frame, and a predetermined measurement MAC address is stored in the transmission source MAC address. Also, the start bit is set to 1 for the first frame and the end bit to 1 for the last frame. Further, a value indicating moving image viewing is used as the type of usage, a value indicating throughput as the communication quality type, and a transmission time of the measurement frame is stored as the transmission time. In addition, random data is stored in the padding so as to be the size (1500 bytes) of the Data portion specified by the measurement condition information.

  When receiving the measurement frame from the frame generation unit 112, the transmission rate control unit 111 transmits the measurement frame via the wireless communication unit 11 at the transmission rate (10 Mbps) specified by the measurement condition information.

  When the transmission source MAC address of the received frame is the measurement MAC address, the wireless communication unit 61 of the terminal 60A transfers the received frame to the frame processing unit 62. Then, the frame processing unit 62 performs a loop back process by replacing the destination MAC address and the transmission source MAC address of the received frame. Then, the frame processing unit 62 transmits the frame subjected to the loopback process via the wireless communication unit 61.

  The wireless communication unit 11 of the wireless communication apparatus 20 transfers the received frame to the reception management unit 120 when the destination MAC address of the received frame is the measurement MAC address. As in the second embodiment, the reception management unit 120 measures the throughput and stores it in the measurement result storage unit 133 (step S202).

  When the measurement of the throughput is completed, the measurement status management unit 232 starts the measurement of the communication quality when the STA is the terminal 60A, the usage purpose is moving image viewing, and the communication quality type is latency and jitter (step S203).

  The measurement status management unit 232 acquires, from the transmission parameter storage unit 234, transmission parameters when the usage application is moving image viewing, and transmits measurement condition information including the transmission parameters to the transmission management unit 110.

Here, the measurement condition information that the measurement status management unit 232 passes to the transmission management unit 110 specifically includes the following information. The transmission rate in the case of latency and jitter measurement is set to a low speed value, for example, 10 pps, regardless of the usage.
STA identification information: MAC address of the terminal 60A Usage: video viewing / communication quality type: latency and jitter Data size: 1500 bytes
・ Transmission rate: 10pps
When the transmission management unit 110 receives the measurement condition information from the measurement status management unit 232, the transmission management unit 110 starts transmission of the measurement frame.

  The terminal 60A having received the frame transmits the measurement packet subjected to the loopback process as in the case of the throughput measurement.

  The wireless communication unit 11 of the wireless communication apparatus 20 transfers the received frame to the reception management unit 120 when the destination MAC address of the received frame is the measurement MAC address. The reception management unit 120 measures the latency and the jitter and stores them in the measurement result storage unit 133 as in the second embodiment (step S204).

  Thus, the wireless communication device 20 completes the measurement of the communication quality for viewing a moving image of the terminal 60A. Thereafter, the communication quality is measured for the other combinations in FIG. 16 in the same manner.

  When the measurement of the communication quality is completed in all combinations (YES in step S205), the measurement status management unit 232 acquires the measurement result from the measurement result storage unit 133 and passes it to the evaluation unit 23. And evaluation part 23 starts evaluation of a measurement result (Step S102 of Drawing 2).

  The evaluation unit 23 evaluates each measurement result with reference to the evaluation criteria of FIG. For example, in the case where the throughput in the case where the usage application is the moving image viewing is 9 Mbps, 8 Mbps or more is the evaluation A in the evaluation criteria of FIG. If communication quality can not be obtained because communication with the STA can not be normally performed, the evaluation result for that STA is regarded as the evaluation of the lowest rank x. In addition, when the communication quality is measured for all use applications by the measurement unit 22, the evaluation unit 23 evaluates only the measurement results of the communication applications of each STA.

  Next, the evaluation unit 23 performs the entire evaluation based on the evaluation result of the evaluation item. For example, the evaluation rank is scored, and the average of the scores for all the measurement results is calculated to obtain the overall evaluation result.

  For example, in the case of the evaluation result of FIG. 15, when the average is calculated with three points for evaluation A, two points for evaluation B, one point for evaluation C, and zero points for evaluation x, it is 2.75 points. Let this be the overall evaluation result. Furthermore, it is also possible to rank this in the form of an evaluation A for 2.5 points or more and an evaluation B for 1.5 points or more and less than 2.5 points as an evaluation result.

  If there is even one measurement result of evaluation x, the entire evaluation result may be evaluation x. This is because if there is only one STA that can not communicate, it is not suitable as the installation place of the wireless communication device 20.

  Next, the output unit 14 outputs the evaluation result (step S103). The output unit 14 outputs the evaluation result to, for example, an LED on the wireless communication device 20 or a display device. Alternatively, it is also possible to acquire the measurement result and the evaluation result held in the evaluation unit 23 and output the result to the Web GUI by the operation of the Web GUI of the user.

  The user receives the output of the evaluation result, changes the installation place of the wireless communication device 20, performs measurement evaluation of communication quality again, and obtains the place where the satisfied evaluation result is obtained as the installation place of the wireless communication device 20. Do.

  Further, the evaluation unit 23 holds the past evaluation results, and the user refers to and compares the evaluation results at the past installation places, whereby it is possible to select a place where a better communication quality can be secured.

  By operating in this manner, the wireless communication device 20 measures the communication quality of wireless communication with each terminal, and based on the communication quality of wireless communication with each terminal, the overall communication quality of the wireless communication is good or bad. Evaluate and output the evaluation result. Therefore, the user can easily determine whether the installation place of the wireless communication apparatus is appropriate.

  As described above, in the third embodiment of the present invention, the wireless communication device 20 measures the communication quality of wireless communication with each terminal, and based on the communication quality of wireless communication with each terminal The quality of the communication quality of the whole wireless communication is evaluated, and the evaluation result is output. As a result, the user can know the evaluation result of the communication quality of the entire wireless communication performed by the wireless communication device 20. Therefore, the user can easily determine whether the installation place of the wireless communication apparatus is appropriate.

  Further, the wireless communication apparatus 20 of the present embodiment changes the length and transmission rate of the Data portion of the measurement frame in accordance with the usage of the STA. As a result, it is possible to transmit a measurement frame that matches the actual use environment of the STA, and measure the communication quality more accurately.

  Also, the wireless communication device 20 of the present embodiment evaluates communication quality based on an evaluation criterion that matches the usage of the STA. This makes it possible to evaluate whether the communication quality required in the actual use environment is satisfied.

Fourth Embodiment
Next, a fourth embodiment of the present invention will be described. In this embodiment, the user does not set the usage of each STA, but the AP acquires the usage from each STA.

  First, FIG. 17 and FIG. 18 show configuration examples of the wireless communication device 30 of the present embodiment. The wireless communication device 30 includes a wireless communication unit 11, a measurement unit 32, an evaluation unit 23, and an output unit 14. The wireless communication unit 11, the evaluation unit 23, and the output unit 14 are the same as in the third embodiment, and thus the description thereof is omitted.

  The measurement unit 32 includes a transmission management unit 110, a reception management unit 120, and a measurement management unit 330. The transmission management unit 110 and the reception management unit 120 are the same as in the third embodiment, and thus the description thereof is omitted.

  The measurement management unit 330 includes a terminal management table storage unit 331, a measurement status management unit 232, a measurement result storage unit 133, a transmission parameter storage unit 234, and a usage application acquisition unit 335. The measurement status management unit 232, the measurement result storage unit 133, and the transmission parameter storage unit 234 are the same as in the third embodiment, and thus the description thereof is omitted.

  The terminal management table storage unit 331 is a part that stores information on STAs belonging to the wireless communication apparatus 30. In the third embodiment, the user sets the usage of each STA. However, in the present embodiment, the usage acquisition unit 335 acquires the usage of each STA and stores the usage of the terminal management table. The part 331 memorizes.

  The use application acquisition unit 335 is a part that receives the use application of the STA from the STA belonging to the wireless communication device 30, and stores the received use application in the terminal management table storage unit 331.

  FIG. 19 shows a configuration example of the terminal 70 (STA) of the present embodiment. The terminal 70 of the present embodiment includes a wireless communication unit 61, a frame processing unit 62, and a usage application notification unit 73.

  The usage application notification unit 73 is a portion that transmits the usage usage of the own device via the wireless communication unit 61 when the terminal 70 belongs to the wireless communication device 30. The usage application may be registered in advance in the STA by a user operation or the like, or may be updated as needed, as the STA determines based on the type of application installed in the STA.

  By configuring the wireless communication apparatus 30 in this manner, the wireless communication apparatus 30 measures the communication quality of wireless communication with each terminal, and based on the communication quality of wireless communication with each terminal, the entire wireless communication. It evaluates the quality of communication quality and outputs the evaluation result. Thus, the user can know the evaluation result of the communication quality of the entire wireless communication performed by the wireless communication apparatus 30. Therefore, the user can easily determine whether the installation place of the wireless communication apparatus is appropriate.

  In addition, the terminal 70 (STA) of the present embodiment transmits the usage of the own apparatus to the wireless communication apparatus 30 (AP). Furthermore, by the terminal 70 determining the use application of the own apparatus, it is possible to reduce the time and effort for the user to set the use application.

  Next, an operation example of the wireless communication apparatus 30 according to the present embodiment will be described using FIG. An operation example of the wireless communication apparatus 30 of the present embodiment is substantially the same as that of the third embodiment.

  In the third embodiment, the usage of each STA is set in advance in the terminal management table storage unit 331 by the operation of the user or the like. On the other hand, the wireless communication apparatus 30 according to the present embodiment acquires the usage of each STA from each STA.

  When the own device belongs to the wireless communication device 30 (step S301), the use application notification unit 73 of the terminal 70 transmits the usage of the own device to the wireless communication device 30 via the wireless communication unit 61 (step S302).

  When the wireless communication unit 11 receives a use application, the use application acquisition unit 335 of the wireless communication device 30 stores the use application in the terminal management table storage unit 331. Then, the terminal management table storage unit 331 stores the MAC address of the terminal 70 and the usage purpose (step S303).

  The other operations are the same as those of the third embodiment (FIGS. 2 and 8), and thus the description thereof is omitted.

  By operating in this manner, the wireless communication device 30 measures the communication quality of wireless communication with each terminal, and based on the communication quality of wireless communication with each terminal, the overall communication quality of wireless communication is good or bad. Evaluate and output the evaluation result. Therefore, the user can easily determine whether the installation place of the wireless communication apparatus is appropriate.

  As described above, in the fourth embodiment of the present invention, the wireless communication device 30 measures the communication quality of wireless communication with each terminal, and based on the communication quality of wireless communication with each terminal The quality of the communication quality of the whole wireless communication is evaluated, and the evaluation result is output. Thus, the user can know the evaluation result of the communication quality of the entire wireless communication performed by the wireless communication apparatus 30. Therefore, the user can easily determine whether the installation place of the wireless communication apparatus is appropriate.

  In addition, the terminal 70 (STA) of the present embodiment transmits the usage of the own apparatus to the wireless communication apparatus 30 (AP). Furthermore, by the terminal 70 determining the use application of the own apparatus, it is possible to reduce the time and effort for the user to set the use application.

[Hardware configuration example]
A configuration example of hardware resources for realizing the wireless communication device (10, 20, 30) in each embodiment of the present invention described above using one wireless communication device (computer) will be described. The wireless communication device may be realized physically or functionally using at least two wireless communication devices. Also, the wireless communication device may be realized as a dedicated device. Further, only a part of the functions of the wireless communication apparatus may be realized using the wireless communication apparatus.

  FIG. 21 is a view schematically showing an example of a hardware configuration of a wireless communication apparatus capable of realizing the wireless communication apparatus according to each embodiment of the present invention. The information processing device 90 includes a communication interface 91, an input / output interface 92, an arithmetic device 93, a storage device 94, a non-volatile storage device 95, and a drive device 96.

  The communication interface 91 is communication means for the wireless communication device of each embodiment to communicate with an external device in a wired or / and wireless manner. When the wireless communication apparatus is realized by using at least two wireless communication apparatuses, those apparatuses may be connected so as to be able to communicate with each other via the communication interface 91.

  The input / output interface 92 is a man-machine interface such as a keyboard as an example of an input device or a display as an output device.

  The arithmetic unit 93 is an arithmetic processing unit such as a general-purpose central processing unit (CPU) or a microprocessor. Arithmetic unit 93 can, for example, read various programs stored in nonvolatile storage device 95 into storage device 94 and execute processing in accordance with the read program.

  The storage device 94 is a memory device such as a random access memory (RAM) that can be referred to from the arithmetic device 93, and stores programs, various data, and the like. The storage device 94 may be a volatile memory device.

  The non-volatile storage device 95 is, for example, a non-volatile storage device such as a read only memory (ROM) or a flash memory, and can store various programs, data, and the like.

  The drive device 96 is, for example, a device that processes reading and writing of data to a recording medium 97 described later.

  The recording medium 97 is any recording medium capable of recording data, such as an optical disc, a magneto-optical disc, a semiconductor flash memory, and the like.

  In each embodiment of the present invention, for example, a wireless communication apparatus is configured by the information processing apparatus 90 illustrated in FIG. 21, and a program capable of realizing the function described in each embodiment is supplied to the wireless communication apparatus. It may be realized by

  In this case, it is possible to realize the embodiment by the arithmetic device 93 executing a program supplied to the wireless communication device. Further, not all of the wireless communication devices but some of the functions may be configured by the information processing device 90.

  Furthermore, the program may be recorded in the recording medium 97, and the program may be appropriately stored in the non-volatile storage device 95 at the shipping stage or operation stage of the wireless communication apparatus. In this case, as the method of supplying the program, a method of installing in the wireless communication apparatus using an appropriate jig at the manufacturing stage before operation, the operation stage or the like may be adopted. Further, the program supply method may adopt a general procedure such as a method of downloading from the outside via a communication line such as the Internet.

  The embodiments described above are preferred embodiments of the present invention, and various modifications can be made without departing from the scope of the present invention.

  Some or all of the above embodiments may be described as in the following appendices, but are not limited to the following.

(Supplementary Note 1)
A wireless communication unit that performs wireless communication with one or more terminals;
A measurement unit that measures communication quality of the wireless communication with each of the terminals;
An evaluation unit that evaluates the quality of the communication quality of the entire wireless communication based on the communication quality of the wireless communication with each of the terminals;
And an output unit that outputs the evaluation result.

(Supplementary Note 2)
The wireless communication device according to claim 1, wherein the communication quality includes one or more indicators.

(Supplementary Note 3)
The measurement unit transmits a measurement frame for measurement to the terminal via the wireless communication, and performs the measurement of the communication quality based on a second measurement frame received from the terminal.
The second measurement frame includes a header portion and a Data portion, and the Data portion of the second measurement frame and the Data portion of the measurement frame are the same. Wireless communication device.

(Supplementary Note 4)
The wireless communication apparatus according to claim 3, wherein the measurement unit performs the transmission of the measurement frame with a transmission parameter according to a use application of the terminal.

(Supplementary Note 5)
The wireless communication apparatus according to claim 4, wherein the transmission parameter includes a length of the measurement frame and / or a transmission rate of the measurement frame.

(Supplementary Note 6)
15. The wireless communication apparatus according to any one of appendices 1 to 5, wherein the evaluation unit performs the evaluation based on an evaluation criterion according to a use application of the terminal.

(Appendix 7)
The wireless communication device according to any one of supplementary notes 1 to 6,
A wireless communication system comprising: the terminal.

(Supplementary Note 8)
The wireless communication device according to any one of Appendixes 3 to 5.
And the terminal.
A wireless communication system, wherein the terminal receives the measurement frame from the wireless communication device, and transmits the second measurement frame to the wireless communication device.

(Appendix 9)
Communicate wirelessly with one or more terminals,
Measuring the communication quality of the wireless communication with each of the terminals;
Evaluating the quality of the communication quality of the entire wireless communication based on the communication quality of the wireless communication with each of the terminals;
And outputting the evaluation result.

(Supplementary Note 10)
The wireless communication method according to appendix 9, wherein the communication quality includes one or more indicators.

(Supplementary Note 11)
Transmitting a measurement frame for measurement to the terminal via the wireless communication, and performing the measurement of the communication quality based on a second measurement frame received from the terminal;
The second measurement frame includes a header portion and a Data portion, and the Data portion of the second measurement frame and the Data portion of the measurement frame are the same. Wireless communication method.

(Supplementary Note 12)
The wireless communication method according to claim 11, wherein the transmission of the measurement frame is performed with a transmission parameter according to a use application of the terminal.

(Supplementary Note 13)
The wireless communication method according to claim 12, wherein the transmission parameter includes a length of the measurement frame and / or a transmission rate of the measurement frame.

(Supplementary Note 14)
The wireless communication method according to any one of appendices 9 to 13, characterized in that the evaluation is performed on the basis of an evaluation criterion according to a use application of the terminal.

(Supplementary Note 15)
On the computer
A wireless communication function for performing wireless communication with one or more terminals;
A measurement function of measuring communication quality of the wireless communication with each of the terminals;
An evaluation function which evaluates the quality of the communication quality of the entire wireless communication based on the communication quality of the wireless communication with each of the terminals;
And an output function for outputting the evaluation result.

(Supplementary Note 16)
The wireless communication program according to appendix 15, wherein the communication quality includes one or more indicators.

(Supplementary Note 17)
The measurement function transmits a measurement frame for measurement to the terminal via the wireless communication, and performs the measurement of the communication quality based on a second measurement frame received from the terminal.
The second measurement frame includes a header portion and a Data portion, and the Data portion of the second measurement frame and the Data portion of the measurement frame are the same. Wireless communication program.

(Appendix 18)
The wireless communication program according to appendix 17, wherein the measurement function performs the transmission of the measurement frame with a transmission parameter according to an application of the terminal.

(Appendix 19)
The wireless communication program according to appendix 18, wherein the transmission parameter includes a length of the measurement frame and / or a transmission rate of the measurement frame.

(Supplementary Note 20)
The wireless communication program according to any one of appendices 15 to 19, wherein the evaluation function performs the evaluation based on an evaluation criterion according to a use application of the terminal.

10, 20, 30 wireless communication device 11 wireless communication unit 12, 22, 32 measurement unit 13, 23 evaluation unit 14 output unit 60, 70 terminal 61 wireless communication unit 62 frame processing unit 73 use application notification unit 90 information processing device 91 communication Interface 92 Input / output interface 93 Arithmetic unit 94 Storage unit 95 Non-volatile storage unit 96 Drive unit 97 Recording medium

Claims (8)

A wireless communication unit that performs wireless communication with one or more terminals;
A measurement unit that measures communication quality of the wireless communication with each of the terminals;
An evaluation unit that evaluates the quality of the communication quality of the entire wireless communication based on the communication quality of the wireless communication with each of the terminals;
An output unit that outputs the evaluation result ;
And a use application acquisition unit for acquiring the use application of the terminal from the terminal ;
The measurement unit transmits a measurement frame for measurement to the terminal through the wireless communication with a transmission parameter according to the usage of the terminal, and the communication is performed based on a second measurement frame received from the terminal. Make the above measurement of quality
A wireless communication device characterized in that.   The usage is determined by the type of application installed in the terminal
  The wireless communication device according to claim 1, The radio communication apparatus according to claim 1 or 2 , wherein the transmission parameter includes a length of the measurement frame and / or a transmission rate of the measurement frame. The wireless communication device according to any one of claims 1 to 3 , wherein the evaluation unit performs the evaluation based on an evaluation criterion according to a use application of the terminal. A wireless communication apparatus according to any one of claims 1 to 4 .
A wireless communication system comprising: the terminal. A wireless communication apparatus according to any one of claims 1 to 4 .
And the terminal.
A wireless communication system, wherein the terminal receives the measurement frame from the wireless communication device, and transmits the second measurement frame to the wireless communication device. Communicate wirelessly with one or more terminals,
Obtain the usage of the terminal from the terminal,
A measurement frame for measurement is transmitted to the terminal through the wireless communication using a transmission parameter according to the usage of the terminal, and the communication quality of the wireless communication with each of the terminals is received from the terminal Measure based on two measurement frames ,
Evaluating the quality of the communication quality of the entire wireless communication based on the communication quality of the wireless communication with each of the terminals;
A wireless communication method of a wireless communication apparatus, comprising: outputting the evaluation result. On the computer
A wireless communication function for performing wireless communication with one or more terminals;
A measurement function of measuring communication quality of the wireless communication with each of the terminals;
An evaluation function which evaluates the quality of the communication quality of the entire wireless communication based on the communication quality of the wireless communication with each of the terminals;
An output function for outputting the evaluation result ;
To realize a use application acquisition function of acquiring the use application of the terminal from the terminal ,
The measurement function transmits a measurement frame for measurement to the terminal via the wireless communication with a transmission parameter according to the usage of the terminal, and the communication is performed based on a second measurement frame received from the terminal. Make the above measurement of quality
A wireless communication program characterized by

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