Telecommunications – Transmitter and receiver at same station – Radiotelephone equipment detail
Reexamination Certificate
2007-11-20
2007-11-20
Gesesse, Tilahun (Department: 2618)
Telecommunications
Transmitter and receiver at same station
Radiotelephone equipment detail
C455S277100, C455S063100
Reexamination Certificate
active
09689228
ABSTRACT:
This invention relates to a method and apparatus for transmitting a downlink signal from a communication station to one or more subscriber units to achieve a desired radiation level over a desired sector (e.g., everywhere), the communication station including an array of antenna elements and one or more signal processors programmed (in the case of programmable signal processors) to weight the downlink signal according to one of a sequence of complex valued weight vectors. The method includes sequentially repeating transmitting the downlink signal, each repetition with a different weight vector from the sequence until all weight vectors in the sequence have been transmitted with. The sequence is designed for achieving the desired radiation level during at least one of the repetitions. In this way, every user in the desired region is transmitted to in the time period.
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Barratt Craig H.
Boyd Stephen
Goldburg Marc H.
Parish David M.
Uhlik Christopher R.
ArrayComm LLC
Blakely , Sokoloff, Taylor & Zafman LLP
Gesesse Tilahun
LandOfFree
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