Multiplex communications – Generalized orthogonal or special mathematical techniques – Quadrature carriers
Reexamination Certificate
2004-01-28
2009-11-24
Rao, Seema S (Department: 2416)
Multiplex communications
Generalized orthogonal or special mathematical techniques
Quadrature carriers
C370S211000, C370S319000, C370S334000, C375S267000, C375S299000
Reexamination Certificate
active
07623441
ABSTRACT:
A transceiver in an N×N MIMO (Multiple-In-Multiple-Out) system includes a mode selection module to select a spatial multiplexing rate and a coding module to space frequency code OFDM (Orthogonal Frequency Division Multiplexing) symbols in response to the selected spatial multiplexing rate. The coding module maps data symbols to the transmit antennas for all data tones in the OFDM symbol. The tones may be mapped using different mapping permutations, which may be applied to the tones in a cyclical manner.
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Narasimhan Ravi
Sampath Hemanth
Baron Henry
Marvell International Ltd.
Rao Seema S
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