Adaptive communication

Pulse or digital communications – Systems using alternating or pulsating current – Plural channels for transmission of a single pulse train

Reexamination Certificate

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Details

C375S295000, C375S222000, C375S232000

Reexamination Certificate

active

07418039

ABSTRACT:
The invention provides a system for analysing a signal received over a channel to determine the channel characteristics. The determined characteristics are then used to divide the sub-carriers up into groups with similar fading characteristics and allocating a pilot channel to each group. The determined pilot allocation scheme is then used for future transmissions across the channel.

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