Telecommunications – Transmitter and receiver at separate stations – With control signal
Reexamination Certificate
2007-04-24
2007-04-24
Urban, Edward F. (Department: 2618)
Telecommunications
Transmitter and receiver at separate stations
With control signal
C455S101000, C455S013300, C375S346000, C375S347000, C370S334000
Reexamination Certificate
active
10808474
ABSTRACT:
A transmission weight vector computing unit computes transmission weight vectors. A transmission weight vector correcting unit obtains a corrected transmission weight vector W′(t). A predicted receiving power computing unit computes a predicted receiving power value Y(t). If a difference between the predicted receiving power value Y(t) and a predicted receiving power value in the past Y(t-T) is less than a threshold value, an update unit selects the corrected transmission weight vector W′(t). If, on the other hand, the difference is greater or equal to the threshold value, the update unit selects a corrected weight vector in the past W′(t-xT). If the modulation method is QPSK, a setting unit selects the transmission weight vector W(t). If the modulation method is 16 QAM, the setting unit selects the corrected transmission weight vector W′(t) or W′(t-xT) and outputs it as a final transmission weight vector signal.
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Chinese Office Action for Corresonding Application No. 200410031477.2.
Kawai Katsutoshi
Nakao Seigo
Chow Charles
Sanyo Electric Co,. Ltd.
Urban Edward F.
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