Adaptive joint channel estimation and data demodulation for...

Details Adaptive joint channel estimation and data demodulation for... Adaptive joint channel estimation and data demodulation for...

2011-08-16

2011-08-16

Bayard, Emmanuel (Department: 2611)

Pulse or digital communications

Systems using alternating or pulsating current

Plural channels for transmission of a single pulse train

C375S350000

Reexamination Certificate

active

08000399

ABSTRACT:
The present invention provides architectures and methods which implement adaptive joint channel estimation and data demodulation in wireless communication systems to provide enhanced performance of the communication link. While not limited to any particular air interface, such architectures and methods are particularly beneficial in OFDM systems. Channel estimates may be performed for pilot sub-carriers for a given OFDM symbol and filtering may then be performed for channel estimation of a given data subcarrier. Received symbols may be equalized and demodulated, and the channel estimate may be updated for the given data subcarrier. Such a procedure enables more accurate channel estimation and improved data demodulation, thereby enhancing system performance.

REFERENCES:
patent: 2005/0213680 (2005-09-01), Atungsiri et al.
patent: 2011/0051618 (2011-03-01), Li et al.

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