| 摘要 |
PURPOSE: An over head test method using a base station test device in a CDMA/PCS system is provided to confirm a service providing state of a real terminal and a pertinent base station by making a BTU(Base station Test Unit) use an MS(Mobile Station), and by performing a log-in of important system parameter message transmitted by the base station. CONSTITUTION: It is confirmed whether each base station requests an overhead channel test or not, and a sector for being tested is selected, and an RF(Radio Frequency) switch in a BTU(Base station Test Unit) is controlled. Next, an MIN tuned with a frequency pertinent to the overhead channel is transmitted to the BTU. And, the BTU changes the MIN of the terminal through a serial interface with an MS(Mobile Station). It is confirmed whether the MS is tuned to a pertinent subcell or not, and whether an overhead channel pertinent to the subcell is normal or not. Finally, a service state of a pertinent base station is confirmed.
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