Apparatus and method for determining a modulation scheme in...

Details Apparatus and method for determining a modulation scheme in... Apparatus and method for determining a modulation scheme in...

2007-06-05

2007-06-05

Pezzlo, John (Department: 2616)

Multiplex communications

Communication techniques for information carried in plural...

Adaptive

C370S204000, C375S298000, C375S300000

Reexamination Certificate

active

10194621

ABSTRACT:
An apparatus and method for determining an optimum modulation scheme and code rate in a communication system using a variable transmission scheme. In a transmitter included in the communication system, an encoder encodes an encoder packet (EP) and a plurality of modulators having different modulation orders modulate sub-packets being codewords output from the encoder. A selector selects one of the modulators by comparing an MPR (Modulation order Product code Rate) being a ratio of an EP size to a number of payload modulation symbols, and comparing the MPR with a threshold.

REFERENCES:
patent: 6707862 (2004-03-01), Larsson
patent: 7039846 (2006-05-01), Hewitt et al.
patent: 2002/0155835 (2002-10-01), Pankaj et al.
patent: 2006/0114910 (2006-06-01), Sindhushayana et al.
patent: 0 713 337 (1996-05-01), None
patent: 1 162 774 (2001-12-01), None
patent: 2001-63518 (2001-10-01), None

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