Communication apparatus

A communication apparatus, comprising:

• a plurality of receiving antennas to receive, as reception signals, interference signals and desired signals transmitted by a transmitting apparatus to perform sequence multiplication processing at a time of transmission;
• and
• an interference suppressor to generate, for each of the receiving antennas, a weight used when combining the reception signals received by the respective receiving antennas, and perform inter-antenna combining that is combining of the reception signals, using the weights, to perform interference suppression on the reception signals, wherein
• the interference suppressor performs reverse sequence multiplication processing on the reception signals to vary interference forms in the reception signals, generates the weights differently for different combinations of the reception signals on which to perform the interference suppression, and performs the interference suppression using, from among the generated weights, the weights by which the desired signals strengthen each other, wherein
• the interference suppressor determines a sequence and a sequence length corresponding to the weights, based on channel estimate values estimated based on the reception signals and the interference forms estimated based on the weights.