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Expired Canadian patentCanada

Method and apparatus for communication channel error rate estimation

CA 2608404 C · Owner: Andersson, Lennart · Inventors: Andersson, Lennart; Wang, Yi-Pin Eric; Bottomley, Gregory E.

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Abstract From the Canadian patent

A wireless communication device or system generates transmit power control feedback for a received power control channel by determining a command error rate (CER), or by identifying a target signal quality for the power control channel according to a defined signal-quality-to-CER mapping function. Generally, the power control channel does not include error-coded data to use for CER estimation. However, in one embodiment the channel does include known , reference bits that are evaluated for CER estimation with the estimated CER , used to set the signal quality target for inner loop power control. In other embodiments, a computed reception error probability is used to identify a CER …

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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 May 18, 2006 and granted February 9, 2016. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 18, 2026.
  • Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledMay 18, 2006
GrantedFebruary 9, 2016
Term endedMay 18, 2026
Patent numberCA 2608404 C
Classification (IPC)H04B7/00

Timeline

Timeline From CIPO dates

2007200920112013201520172019202120232025Application filedMay 18, 2006Patent grantedFeb 9, 2016Term endedMay 18, 2026

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