Rate Dematching from Interleaved Data to Cut Delay and Buffer Use

The patent applies preliminary action by performing rate dematching before complete deinterleaving and data reception is finished. The reception side calculates error values and determines puncture/repetition types during the deinterleaving process itself, rather than waiting for all data to be received. This allows rate dematching to start earlier and reduces overall processing delay time while maintaining accuracy through continuous error calculation during the decoding process.

The patent reduces input buffer size requirements by performing rate dematching during the deinterleaving process rather than after complete data reception. The reception side continuously calculates error values and determines puncture/repetition types as data is received and deinterleaved, eliminating the need to store all deinterleaved data in a large input buffer before processing. This preliminary processing approach significantly reduces the required buffer capacity.

The patent improves processing efficiency during high-speed data transmission by making rate dematching a continuous operation that occurs during the deinterleaving process itself. Rather than completing deinterleaving first and then performing rate dematching, the reception side continuously calculates error values, determines puncture/repetition types, and performs rate dematching operations concurrently with data reception and deinterleaving. This continuous processing maintains data transmission completeness while significantly improving processing efficiency.