Pilot interpolation for a gated pilot with compensation for...

Details Pilot interpolation for a gated pilot with compensation for... Pilot interpolation for a gated pilot with compensation for...

2006-11-07

2006-11-07

Tran, Khai (Department: 2611)

Pulse or digital communications

Spread spectrum

Direct sequence

C370S342000

Reexamination Certificate

active

07133437

ABSTRACT:
Techniques for deriving interpolated pilot symbols for a gated pilot in a wireless (e.g., IS-856, cdma2000, or W-CDMA) communication system. In one method, first and second recovered pilot symbols for first and second time instances, respectively, are initially obtained (e.g., derived based on pilot bursts for the gated pilot). A phase change induced in the received signal at a third time instance between the first and second time instances is estimated. First and second phase-rotated symbols are next derived based on the first and second recovered pilot symbols and the estimated induced phase change. Interpolated pilot symbols between the first and third time instances are then derived (e.g., using linear interpolation) based on the first recovered pilot symbol and the first phase-rotated symbol. Similarly, interpolated pilot symbols between the third and second time instances are derived based on the second phase-rotated symbol and the second recovered pilot symbol.

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