Pilot interference cancellation for a coherent wireless code div

Details Pilot interference cancellation for a coherent wireless code div Pilot interference cancellation for a coherent wireless code div

1997-04-30

2000-05-23

Ton, Dang

Multiplex communications

Communication over free space

Combining or distributing information via code word channels...

H04J 1300

Patent

active

060672927

ABSTRACT:
A Code-Division Multiple Access (CDMA) receiver removes the pilot signal from the received signal. The pilot signal is defined by its multipath parameters (amplitudes, phase shift and delays) and its signature sequence. Since this information is known at the user's receiver terminal (i.e., handset), the pilot signals of the interfering multipath components of the baseband received signal are detected and removed prior to demodulation of the desired multipath component. The pilot signal may be cancelled prior to or following the data accumulation stage. The pilot signal cancellation can be switched on and off depending on the detected path signal level.

REFERENCES:
patent: 5764687 (1998-06-01), Easton
patent: 5799010 (1998-08-01), Lomp et al.

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