Method and system for channel estimation in WLAN

Details Method and system for channel estimation in WLAN Method and system for channel estimation in WLAN

2007-09-18

2007-09-18

Ghayour, Mohammed (Department: 2611)

Pulse or digital communications

Spread spectrum

Direct sequence

C375S148000

Reexamination Certificate

active

10721355

ABSTRACT:
A system and method for channel estimation in a wireless local area network. A corresponding channel estimation method includes the steps of: receiving a preamble message and despreading the preamble message into several symbol signals, each symbol signal containing several discrete signals; determining for each symbol signal a peak sign assignment; establishing several data windows for the symbol signals at the starting points of the discrete signals; multiplying the discrete value of each discrete signal of each data window by the corresponding peak sign assignment and accumulating the product in the first data frame; repeating the above steps for the next discrete signal and accumulating them in the second data frame, . . . , the Nth data frame; computing the accumulated value in the data frames and obtaining the data frame with the maximum value; estimating a channel signal from the previously determined data frame.

REFERENCES:
patent: 5764685 (1998-06-01), Tanaka et al.
patent: 7020180 (2006-03-01), Challa et al.
patent: 7054396 (2006-05-01), Shan

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