| CPC H04L 43/0852 (2013.01) [H04L 41/22 (2013.01)] | 18 Claims |
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1. A test device for performing a blind scan, the test device comprising:
a receiver to receive radio frequency (RF) signals;
a blind scan circuit to execute a blind scan on the received RF signals to determine whether the received RF signals include channels of certain cellular technologies, the blind scan circuit comprising:
a demodulator to demodulate a portion of a bandwidth of the channels of the received RF signals that carries a primary synchronization signal for execution of the blind scan;
digital downconverters to convert the demodulated portion of the bandwidth of the channels of the received RF signals to a baseband frequency range for each of the certain cellular technologies from an intermediate frequency range, wherein a center frequency of the baseband frequency range is determined from a center frequency of the intermediate frequency range; and
digital detectors, respectively connected to outputs of the digital downconverters, to perform in parallel and simultaneously primary synchronization signal correlation in the baseband frequency range for each of the certain cellular technologies to detect whether the received RF signals include the channels of the certain cellular technologies; and
a processor to launch, responsive to detecting that the received RF signals include at least one of the channels from the blind scan, a signal analysis application or a spectrum analysis application for the at least one channel according to a carrier frequency and a particular cellular technology identified for the at least one channel from the blind scan.
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