Method for modifying a bit sequence in an ARQ...

Details Method for modifying a bit sequence in an ARQ... Method for modifying a bit sequence in an ARQ...

2007-06-05

2007-06-05

Ghebretinsae, Temesghen (Department: 2611)

Pulse or digital communications

Systems using alternating or pulsating current

Plural channels for transmission of a single pulse train

C375S298000, C714S748000, C370S349000

Reexamination Certificate

active

10853173

ABSTRACT:
An ARQ transmission method in a communication system, wherein data packets comprising modulation symbols are transmitted based on an automatic repeat request and subsequently combined with previously received data packets. The symbols of the transmitted data packets are modulated In a mapping entity employing at least a first and second signal constellation. The method further comprises the step of obtaining the second signal constellation from the first signal constellation by exchanging a logical bit position and/or inverting a logical bit. The invention further relates to a corresponding transmitter and receiver.

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