Reception apparatus and reception method

摘要

Receiving a packet interleaved with an interleave pattern corresponding to the number of times of retransmission, reception apparatus ( 200 ) de-interleaves a pilot sequence contained in the packet with de-interleavers ( 205 - 1~205 -N). Correlators ( 206 - 1~206 -N) performs correlation calculation between the de-interleaved pilot sequence and a pilot pattern held in the reception apparatus. Maximum value detection section ( 207 ) detects the maximum correlation value among the correlation values to detect the number of times of retransmission. Decision section ( 209 ) controls combination circuit ( 213 ) and error detection section ( 217 ) based on the number of times of retransmission stored in storage section ( 208 ) and on the number of times of retransmission detected at maximum value detection section ( 207 ). This allows a decrease in throughput to be prevented from occurring even in a case where a reception side receives a packet which is different from one which is requested by the reception side.