US 6,983,127 B1 | ||
Statistical calibration of wireless base stations | ||
Serge Barbosa Da Torre, San Raphael (France); David M. Parish, Amherst, N.Y. (US); Athos Kasapi, San Francisco, Calif. (US); Erik D. Lindskog, Sunnyvale, Calif. (US); Mitchell D. Trott, Mountain View, Calif. (US); and Adam B. Kerr, Menlo Park, Calif. (US) | ||
Assigned to ArrayComm, Inc., San Jose, Calif. (US) | ||
Filed on Jul. 31, 2002, as Appl. No. 10/209,500. | ||
Claims priority of provisional application 60/309448, filed on Jul. 31, 2001. | ||
Int. Cl. H04B 17/00 (2006.01) |
U.S. Cl. 455—67.11 | 21 Claims |
1. A method for calibrating a radio receiver having a plurality of antennas configured into an array, the method comprising:
receiving a plurality of signals from a plurality of remote transmitters at the antenna array;
sampling the signals received at at least two antennas of the array;
computing a relative phase and amplitude of the sampled signals for each sampled signal for each antenna;
averaging the computed phase and amplitude for each antenna for each subsequent sampled signal; and
computing calibration coefficients based on the relative phase and amplitude for the plurality of sampled signals from the
plurality of remote transmitters for each antenna by using the average phase and amplitude.
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