H - Electricity – 04 – L
Patent
H - Electricity
04
L
H04L 1/22 (2006.01) H03M 13/27 (2006.01)
Patent
CA 2174680
Apparatus that realizes a substantial advantage by employing implied interleaving to create a systematic interleaver, that can result in a superior block error rate compared to the current data interleaving techniques in which uncorrected error bursts are distributed by the deinterleaver. The disclosed principles lead to a embodiments that essentially eliminate transmitter memory regardless of the interleaving approachemployed. By way of example, block interleaving (regular or random), convolutional interleaving (regular and random) and product interleaving approaches are described. In implied interleaving, all incoming data is treated as if it is pre-interleaved and transmitted directly to its destination without alteration to its sequence, and essentially without delay. Concurrently with the transmission of the data, the data is applied to apparatus that treats the data as if it had been interleaved in accordance with a selected interleaving approach and, in accordance with such treatment, redundant symbols are generated and inserted into the transmitted data stream. At the receiver, the incoming data is delayed, corrected, and the information symbols in the incoming data are delivered to the user, corrected as necessary, in the same order as the information symbols arrived at the receiver.
At&t Ipm Corp.
Globespan Semiconductor Inc.
Kirby Eades Gale Baker
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