Method and apparatus for increasing the number of orthogonal...

Pulse or digital communications – Systems using alternating or pulsating current

Reexamination Certificate

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C375S295000

Reexamination Certificate

active

08005153

ABSTRACT:
Embodiments of the invention apply block spreading to transmitted signals to increase the number orthogonally multiplexed signals. The principle of the disclosed invention can be applied to reference signals, acknowledgement signals, and channel quality indication signals. In any given time interval, the set of transmitted signals is defined by two sequences: the baseline sequence, and the block spreading sequence. Different transmitters using the same baseline sequence can be identified by using different block spreading sequences.

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