Patent ID: 7933313

Claim:
A signal quality measuring apparatus for a WiBro system, comprising: a WiBro signal reception unit for receiving a WiBro signal from each base station; a preamble code correlation unit for searching the WiBro signal for a number of preamble codes equal to a number of base stations for which measurement of signal quality measurement is required; a channel compensation/demodulation unit for acquiring information of a Frame Control Header (FCH) section and a DownLink-MAP (DL-MAP) section with reference to the preamble codes found by the preamble code correlation unit, and demodulating information of a unique number of the base station; a control unit for collecting and processing the information about the unique number of the base station demodulated by the channel compensation/demodulation unit, and information about signal quality of the preamble codes found by the preamble code correlation unit; a key input unit for receiving various selections or settings necessary for measurement, including input of the information about the number of base stations for which measurement of signal quality is required; a screen display unit for displaying various operating status or results of signal quality measurement of the measuring apparatus; a Global Positioning System (GPS) signal reception unit for receiving information about a current position of the measuring apparatus from GPS satellites; and a signal quality/position information storage unit for storing signal quality measured with the measuring apparatus and information about a position of the measurement thereof; wherein the control unit receives information about the number of base stations for which the measurement of signal quality is required from the key input unit, transfers the information about the number of the base stations to the preamble code correlation unit, collects information about unique numbers of each base station, which has been demodulated by the channel compensation/demodulation unit, and the signal quality of the preamble code, which has been found by the preamble code correlation unit, stores the unique number information and the signal quality in the signal quality/position information storage unit, along with information about a current position of the measuring apparatus, which is received from the GPS signal reception unit, and outputs the information about the unique number and the signal quality through the screen display unit.