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Methods and apparatus of power control in wireless communication systems

CA 2535555 A1 · Owner: Laroia, Rajiv · Inventors: Fan, John; Rangan, Sundeep; Li, Junyi

CIPO record

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Abstract From the Canadian patent

The present invention involves apparatus and methods (Fig. 7) to perform wireless terminal transmission power control. The invention uses novel and highly efficient methods to: convey power control information specify power , control level adjustments recognize power control information, limit interference in the power control signaling and recognize corrupted power , control signaling thus conserving wireless terminal energy and minimizing power control signaling and associated bandwidth. Base stations send analog power control command signals, with a continuous range of control levels to , wireless terminals for transmission power adjustments. Power control signals include two …

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Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.

Why it's free to use

  • Filed August 13, 2003. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended August 13, 2023.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 13, 2025.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledAugust 13, 2003
GrantedNo grant recorded
Term endedAugust 13, 2023
Patent numberCA 2535555 A1
Classification (IPC)H04J11/00 +1 more

Timeline

Timeline From CIPO dates

2004200620082010201220142016201820202022Application filedAug 13, 2003Term endedAug 13, 2023

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Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.