Multiplex communications – Generalized orthogonal or special mathematical techniques – Particular set of orthogonal functions
Reexamination Certificate
2004-11-18
2009-02-17
Backer, Firmin (Department: 2616)
Multiplex communications
Generalized orthogonal or special mathematical techniques
Particular set of orthogonal functions
C455S023000
Reexamination Certificate
active
07492701
ABSTRACT:
A method and apparatus for controlling AMC in an OFDM communication system in which an entire frequency band is divided into a plurality of sub-carrier bands. In the AMC controlling method, power and a number of transmission bits are calculated for each of the sub-carriers in a predetermined method for each of coding methods available in the OFDM communication system. A data rate for each of the coding methods is calculated based on the number of transmission bits and the power for each sub-carrier. A coding method having a highest of the calculated data rates is selected and a modulation method is determined according to a number of transmission bits in the determined coding method.
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Li Zhen, et al., “A Modified Sub-Optimum Adaptive Bit and Power Allocation Algorithm in Wideband OFDM System”, Beijing University of Posts and Telecommunications, May 2003.
Lee Dong-Jun
Song Kee-Bong
Backer Firmin
Nguyen Phuongchau B
Samsung Electronics Co,. Ltd
The Farrell Law Firm PC
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