Pulse or digital communications – Spread spectrum – Direct sequence
Reexamination Certificate
2009-03-05
2009-11-10
Pathak, Sudhanshu C (Department: 2611)
Pulse or digital communications
Spread spectrum
Direct sequence
C370S335000, C370S342000, C370S500000
Reexamination Certificate
active
07616681
ABSTRACT:
The frame words of the embodiments are suitable for frame synchronization and/or channel estimation. By adding the autocorrelation and/or cross-correlation functions of frame words, double maximum values equal in magnitude and opposite polarity at zero and middle shifts are obtained. This property can be used to slot-by-slot, double-check frame synchronization timing, single frame synchronization and/or channel estimation and allows reduction of the synchronization search time. Further, the present invention allows a simpler construction of a correlator circuit for a receiver. A frame synchronization apparatus and method using an optimal pilot pattern is used in a wide band code division multiple Access (W-CDMA) next generation mobile communication system.
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Ked & Associates LLP
LG Electronics Inc.
Pathak Sudhanshu C
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