Preamble detection device and a preamble detection method, and computer program

摘要

In the preamble detection apparatus for detecting a preamble sequence transmitted by Use physical random access channel, to suppress the occurrence of the preamble false detection. A first threshold value calculating means for calculating a first threshold value from average interference power (203), obtains a cross-correlation value between the received signal for all preamble sequences which may be transmitted, the from the cross correlation 2 a second threshold value calculating means for calculating a threshold (205), by comparing the first threshold and the second threshold value, the comparison means for the detection threshold greater of the value (208), the cross-correlation value and a detection means for detecting a preamble sequence exceeds a detection threshold as a reception preamble sequence (209).