Multiplex communications – Communication over free space – Having a plurality of contiguous regions served by...
Reexamination Certificate
2011-03-08
2011-03-08
Rampuria, Sharad (Department: 2617)
Multiplex communications
Communication over free space
Having a plurality of contiguous regions served by...
C375S147000, C375S148000, C455S522000, C455S069000
Reexamination Certificate
active
07903613
ABSTRACT:
A subscriber unit for use in a multiple access spread-spectrum communication system includes a spread spectrum radio interface, responsive to a rate function signal from a base station, and first and second despreaders. The base station assigns the rate function spread-spectrum message channels and the first despreader recovers and modifies an information signal one of the spread spectrum message channels. The information channel mode is then modified for processing by the second despreader, with the second despreader supporting a different information signal rate. The subscriber unit has a capability of communicating with a dynamically changing a transmission rate of an information signal which includes multiple spread spectrum message channels. The system includes a closed loop power control system for maintaining a minimum system transmit power level for a radio carrier station and the subscriber units, and system capacity management for maintaining a maximum number of active subscriber units for improved system performance.
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Jacques Alexander
Kowalski John
Lomp Gary R.
Ozluturk Fatih M.
InterDigital Technology Corporation
Rampuria Sharad
Volpe and Koenig P.C.
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