Patent ID: 7881218

Claim:
A method of analyzing portable Internet signals in a measuring instrument, the measuring instrument comprising at least a signal reception unit, a synchronization and channel compensation unit, a demodulation unit, a control unit, a flat panel display and a flat panel display driving unit, the method comprising: using the signal reception unit to receive a portable Internet signal, transform the received signal into a baseband signal and then transform the baseband signal into a digital signal through Analog/Digital (A/D) sampling; using the synchronization and channel compensation unit to improve the quality of the received signal transformed into the digital signal through a synchronization process of identifying a start point and cell information of the digital signal and through a compensation algorithm; using the demodulation unit to interpret and classify the respective pieces of information of the digital signal having improved quality into a digital bit stream in conformity with portable Internet specifications; and using the control unit to: (a) acquire synchronization using a preamble included in a currently received frame; (b) acquire access parameters of a downlink_MAP (DL_MAP) included in the frame, and checking validity of the DL_MAP; (c) acquire downlink parameters and burst configuration information by interpreting the DL_MAP if, as a result of the check at step (b), the DL_MAP is determined to be valid; (e) perform a variety of diagnoses, including evaluation of signal quality for each burst, using the downlink parameters and the burst configuration information; and (f) display the diagnosed result in the flat panel display through the flat panel display driving unit.