Measurement device and measurement method

A measurement device comprising:

• frame reception circuit configured to receive a frame transmitted from a device under measurement, wherein the device under measurement transmits, to a transmission destination according to a frame request signal for requesting the frame, a frame generated on the basis of a value of a modulation and coding scheme index with which a modulation scheme and a coding rate are associated, and when the device under measurement does not receive a notification signal indicating that the frame has been received by the transmission destination, retransmits a frame in which the value of the modulation and coding scheme index has been changed;
• measurement circuit configured to measure data included in the frame;
• comparison circuit configured to compare the modulation and coding scheme index of the frame received by the frame reception circuit with a predetermined value;
• notification signal processing circuit configured to transmit the notification signal to the device under measurement when the comparison circuit determines that the modulation and coding scheme index is equal to or smaller than the predetermined value, and not transmitting the notification signal when the comparison circuit determines that the modulation and coding scheme index is not equal to or smaller than the predetermined value;
• request signal transmission circuit configured to transmit the frame request signal to the device under measurement when the comparison circuit determines that the modulation and coding scheme index is smaller than the predetermined value;
• and
• measurement circuit configured to measure data included in the frame when the comparison circuit determines that the value of the modulation and coding scheme index matches the predetermined value.

A measurement method comprising:

• a frame reception step of receiving a frame transmitted from a device under measurement, wherein the device under measurement transmits a frame generated using a predetermined modulation scheme and a predetermined coding rate to a transmission destination, and when the device under measurement does not receive a notification signal indicating that the frame has been received by the transmission destination, the device under measurement retransmits a frame in which at least one of the modulation scheme and the coding rate has been changed so that a probability of delivery to the transmission destination is increased;
• a determination step of determining whether or not the modulation scheme and the coding rate of the frame received in the frame reception step satisfy a predetermined condition, transmitting the notification signal to the device under measurement when it is determined that the predetermined condition is satisfied, and not transmitting the notification signal when it is determined that the predetermined condition is not satisfied;
• and
• a measurement step of measuring characteristics of the frame transmitted from the device under measurement with the modulation scheme and the coding rate, the frame being determined to satisfy the predetermined condition in the determination step.

A measurement method comprising:

• a frame reception step of receiving a frame transmitted from a device under measurement, wherein the device under measurement transmits, to a transmission destination according to a frame request signal for requesting the frame, a frame generated on the basis of a value of a modulation and coding scheme index with which a modulation scheme and a coding rate are associated, and when the device under measurement does not receive a notification signal indicating that the frame has been received by the transmission destination, retransmits a frame in which the value of the modulation and coding scheme index has been changed;
• a comparison step of comparing the modulation and coding scheme index of the frame received in the frame reception step with a predetermined value;
• a notification signal processing step of transmitting the notification signal to the device under measurement when it is determined in the comparison step that the modulation and coding scheme index is equal to or smaller than the predetermined value;
• a request signal transmission step of transmitting the frame request signal to the device under measurement when it is determined in the comparison step that the modulation and coding scheme index is smaller than the predetermined value;
• and
• a measurement step of measuring data included in the frame when it is determined in the comparison step that the value of the modulation and coding scheme index matches the predetermined value.