Telecommunications – Transmitter and receiver at separate stations – Optimum frequency selection
Reexamination Certificate
2008-04-29
2008-04-29
Trost, William (Department: 2617)
Telecommunications
Transmitter and receiver at separate stations
Optimum frequency selection
C455S450000, C455S452200, C455S509000, C370S329000, C370S341000, C370S343000, C370S493000
Reexamination Certificate
active
07366469
ABSTRACT:
A method for communicating data in a wireless communications system having a base station communicating to at least one of a plurality of terminals over a set of carrier frequencies, the method comprising periodically monitoring the carrier energy level of each said carrier frequency received at a given terminal to identify a list of optimal frequencies over which the carrier energy level is strong enough to maintain a viable transmission from said base station to said given terminal, wherein said viable transmission provides a given coding gain; and simultaneously transmitting a given set of packet data from said base station to said given terminal over a plurality of frequencies from said list of optimal frequencies identified for said given terminal.
REFERENCES:
patent: 5784363 (1998-07-01), Engstrom et al.
patent: 6002677 (1999-12-01), Javitt et al.
patent: 6134226 (2000-10-01), Reed et al.
patent: 6301481 (2001-10-01), Parra
patent: 6426960 (2002-07-01), Antonio
Javitt Joel I.
Stevenson J. Frederick
AT&T Corp.
Ewart James D.
Trost William
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