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Expired Canadian patentCanada

Method and apparatus for power control in a wireless communication system

CA 2429622 C · Owner: Qualcomm Incorporated · Inventors: Agrawal, Avneesh; Shiu, Da-Shan

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Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

In a wireless communication system (10) having a composite transport channel made up of individual transport channels a method for closed loop power , control wherein multiple instances of the outer loop are performed in parallel. The method determines a Signal-to-Interference Ratio (SIR) threshold for the composite channel based on a channel quality metric evaluated for each of the individual channels. In one embodiment the channel quality metric is a Cyclical Redundancy Check (CRC) outcome.

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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 November 14, 2001 and granted November 6, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 14, 2021.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 14, 2023.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledNovember 14, 2001
GrantedNovember 6, 2012
Term endedNovember 14, 2021
Patent numberCA 2429622 C
Classification (IPC)H04W52/08 +2 more

Timeline

Timeline From CIPO dates

2002200420062008201020122014201620182020Application filedNov 14, 2001Patent grantedNov 6, 2012Term endedNov 14, 2021

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