United States Patent 7,961,773
Zeira , et al. June 14, 2011
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Weighted open loop power control transmitter
Abstract
A weighted open loop power control transmitter for controlling transmission power levels using a spread spectrum time division duplex (TDD) technique having frames with timeslots for communication includes a demodulator configured to receive a transmitted signal from the receiver, a channel estimation device, a data estimation device, and a weighted open loop power controller. The weighted open loop power controller includes a power measurement device, a pathloss estimation device configured to receive an interpreted power level from the data estimation device and estimate the pathloss and update a long term average of the pathloss, a quality measurement device, and a transmit power calculation device for determining the transmitter's power level and to control the receiver's amplifier.
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Inventors: Zeira; Ariela (Huntington, NY), Shin; Sung-Hyuk (Northvale, NJ)
Assignee: InterDigital Technology Corporation (Wilmington, DE)
Appl. No.: 12/464,164
Filed: May 12, 2009
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Related U.S. Patent Documents
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Application Number Filing Date Patent Number Issue Date
11978298 Oct., 2007 7532659
11544275 Oct., 2007 7289550
11130591 Oct., 2006 7120189
10755649 Oct., 2005 6956889
10446539 Jan., 2005 6845122
09532349 Jul., 2003 6597723
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Current U.S. Class: 375/130 ; 370/343; 375/145
Current International Class: H04B 1/69 (20110101)
Field of Search: 375/130,146,295 370/347,318,342,343 455/69,522
PPP
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