Pulse or digital communications – Systems using alternating or pulsating current – Plural channels for transmission of a single pulse train
Reexamination Certificate
2008-09-18
2011-11-01
Fan, Chieh M (Department: 2611)
Pulse or digital communications
Systems using alternating or pulsating current
Plural channels for transmission of a single pulse train
C375S232000, C375S229000
Reexamination Certificate
active
08050342
ABSTRACT:
Method and apparatus for receiving coded signals with the aid of CSI are provided. The method comprises: performing channel estimation to obtain a CFR estimation vector; computing a squared magnitude of the CFR estimation vector, and obtaining a normalization factor α by averaging the squared magnitudes of CFR estimations on all N subcarriers; finding a norm-shift operand m satisfying the condition that α0=2mis a power of 2 number closest to the normalization factor α; performing a CSI-aided one-tap channel equalization on an output signal vector from a DFT processor by using the norm-shift operand m; performing constellation demapping; and performing channel decoding. The method further comprises obtaining a weighting factor vector by right shifting m bits of the squared magnitude of the CFR estimation vector so that the constellation demapping can use the weighted decision boundary values in case that its input signal is sensitive to both amplitude and phase.
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Hu Saigui
Li Zhi Ping
Ting Yu Jing
Tomisawa Masayuki
Wang Zhongjun
Fan Chieh M
Fotakis Aristocratis
Rabin & Berdo P.C.
Wipro Techno Centre (Singapore) Pte Ltd
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