Complex type correlator in CDMA system and initial synchronization acquiring method using the same
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United States of America Patent
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Nov 18, 2003
Grant Date -
N/A
app pub date -
Feb 14, 2000
filing date -
Mar 22, 1999
priority date (Note) -
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Abstract
An correlator for acquiring initial synchronization and initial synchronization acquiring method using the same by means of signals to be transmitted from receiving stages of a base station and a mobile station in a CDMA system is disclosed. The correlator includes a plurality of shift registers that each shift received spread signals, a plurality of multipliers that each multiply the shifted spread signal by each pseudo random code stored therein, an adder that adds the multiplied results from the multipliers, and an accumulating adder that adds in recursive pattern the added result from the adder over a predetermined times. Accordingly, the present invention has the effect that reduces initial synchronization time while realizing simple structure.
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