Patent ID: 8553809

Claim:
A reception apparatus comprising: circuitry configured to: receive an orthogonal frequency division multiplexing (OFDM) signal formed by modulating common packet sequences and data packet sequences, said common packet sequences being made up of packets common to a plurality of streams, said data packet sequences being constituted by packets unique to each of said plurality of streams; acquire decoding information for decoding original streams from said common packet sequences and said data packet sequences obtained by demodulating the received OFDM signal; and search for a common packet sequence needed to decode the original streams from a designated data packet sequence on the basis of the acquired decoding information; and a memory configured to store the decoding information about the acquired common packet sequences until the decoding information about said designated data packet sequence is acquired, wherein when the decoding information about said designated data packet sequence is acquired, said circuitry searches the stored decoding information about said common packet sequences for the decoding information identified by the decoding information about the acquired data packet sequences.