Method of allocating a transmission power level to pilot...

Details Method of allocating a transmission power level to pilot... Method of allocating a transmission power level to pilot...

2006-06-13

2006-06-13

Nguyen, Hanh (Department: 2668)

Multiplex communications

Communication over free space

Repeater

C370S320000, C370S208000, C370S335000, C455S013400, C455S135000

Reexamination Certificate

active

07061881

ABSTRACT:
A method of determining transmission power of transmitted pilot symbols used for estimating channel coefficients in a transmission frame of a multicarrier transmission system having OFDM-CDMA, MC-CDMA, MC-CDM or MC-SS-MA frequency domain spreading sequences. The method includes determining a performance level to be achieved by the transmission, deducing the signal to noise ratio level introduced by the channel from the performance level to be achieved, deducing a single code transmission power Q0of the pilot symbols for a single spreading code from the signal to noise ratio level, deducing an increase in power α for transmitting the pilot symbols using a number of spreading codes K, and determining the transmission power Q of the pilot symbols at predetermined times, based on the following equations:in-line-formulae description="In-line Formulae" end="lead"?Q=α(K−1)+Q0; K>1; α>0; andQ0>α.in-line-formulae description="In-line Formulae" end="tail"?

REFERENCES:
patent: 6404826 (2002-06-01), Schmidl et al.
patent: 6625111 (2003-09-01), Sudo
patent: 6680928 (2004-01-01), Dent
patent: 6888789 (2005-05-01), Sakoda et al.
patent: 6904283 (2005-06-01), Li et al.
Patent Abstracts of Japan, JP 07 202973, Aug. 4, 1995.
S. Kaiser, et al., Gateway to 21st Century Communications Village. VTC 1999-Fall. IEEE VTS 50th Vehicular Technology Conference (Cat. No. 99CH36324), vol. 5, pp. 2701-2705, “Asynchronous Spread Spectrum Multi-Carrier Multiple Access Systems with Pilot Symbol Aided Channel Estimation”, 1999.

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