Measuring device and measuring method

A measuring method that measures a signal to be measured received from a mobile terminal that transmits and receives radio frequency signals by using a measuring device that tests an operation of a communication function of the mobile terminal by performing communication simulating a base station with the mobile terminal, the measuring method comprising:

• acquiring an arbitrary channel of a physical layer used for receiving the signal to be measured, and a predetermined trigger condition in which a reception status of the signal to be measured in the channel is designated;
• receiving the signal to be measured from the mobile terminal;
• converting the signal to be measured into a digital signal and calculating signal data;
• outputting a trigger signal at a predetermined timing when the predetermined trigger condition is satisfied;
• receiving the trigger signal and extracting IQ data in a predetermined section according to the predetermined timing from the signal data;
• and
• analyzing the extracted IQ data, wherein
• the signal data is a physical layer data, and the trigger signal is output when the predetermined trigger condition is either uplink shared channel (ULSCH), uplink control information (UCI) (scheduling request (SR), Channel State Information (CSI), or hybrid automatic repeat request-acknowledgement (HARQ-ACK)), physical random access channel (PRACH) or sounding reference signal (SRS), a total received power is equal to or higher than a predetermined threshold, and the reception status is discontinuous transmission (DTX), cyclic redundancy check (CRC) NG, CRC OK, Decode NG, or Decode OK.