Method and system for improving timing position estimation...

Details Method and system for improving timing position estimation... Method and system for improving timing position estimation...

2011-01-25

2011-01-25

Liu, Shuwang (Department: 2611)

Pulse or digital communications

Receivers

Particular pulse demodulator or detector

C375S362000, C375S222000, C375S260000, C375S267000, C375S344000, C375S148000

Reexamination Certificate

active

07876863

ABSTRACT:
A method for determining timing positions in a wireless communications system comprises creating a time-domain timing detection window from a preamble of a receiving signal, generating a first vector of correlations between sampling points in the time-domain timing detection window and sampling points of a known preamble, identifying a pivot position from the largest correlation value of the first vector and generating second vectors based on the pivot position, generating a third vector comprising the largest elements of the second vectors; generating a fourth vector comprising sums of elements in the second vectors, generating fifth and sixth vectors comprising a sum of subsets of the third and fourth vectors, respectively, calculating a seventh vector using the fifth and sixth vectors according to a predetermined equation, and selecting an index of one element from the fifth and seventh vectors to be the timing position according to a predetermined rule.

REFERENCES:
patent: 6058101 (2000-05-01), Huang et al.
patent: 7415059 (2008-08-01), Chadha et al.
patent: 7436906 (2008-10-01), Goto
patent: 2004/0120410 (2004-06-01), Priotti
patent: 2006/0250939 (2006-11-01), Wang et al.
patent: 2009/0060076 (2009-03-01), Ma et al.
International Search Report and Written Opinion cited in PCT/US2007/04710 dated May 30, 2008.

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