Invention Application
- Patent Title: METHOD AND APPARATUS FOR FREQUENCY OFFSET CORRECTION
- Patent Title (中): 频率偏差校正的方法和装置
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Application No.: PCT/US2000/010743Application Date: 2000-04-21
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Publication No.: WO00065797A1Publication Date: 2000-11-02
- Main IPC: H04B1/7075
- IPC: H04B1/7075 ; H04B1/707 ; H04B1/709 ; H04L27/00 ; H04L27/233 ; H04L25/02
Abstract:
Coherent detection of high-speed digital wireless communications becomes more difficult when the frequencies of the transmitter and receiver oscillators do not coincide. A frequency-locked loop may be used to characterize this frequency offset by processing the samples received on a pilot channel. Rather than using the offset information thus derived to correct the frequency of the received signal, the invention realizes considerable computational savings by applying a frequency correction to the despread pilot samples instead.
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