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Expired Canadian patentCanada

Reverse link initial power setting

CA 2401099 C · Owner: Rouphael, Antoine J. · Inventors: Hoffmann, John E.; Nelson, George Rodney Jr.; Proctor, James A. Jr.

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Abstract From the Canadian patent

In an illustrative embodiment of the present invention a reference signal , including pilot information is transmitted from a base station to one or multiple field units over a pilot channel. A message is also sent to the field units over a paging channel to indicate an effective radiated power level at which the reference signal is transmitted on the pilot channel. Based on a received power level of the reference signal at a field unit and the effective radiated power level of the reference signal a forward path loss is estimated , at the field unit for the forward link between the base station and field unit. Assuming the path loss in the reverse link is approximately the same as …

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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 February 23, 2001 and granted September 8, 2015. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 23, 2021.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 23, 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.
FiledFebruary 23, 2001
GrantedSeptember 8, 2015
Term endedFebruary 23, 2021
Patent numberCA 2401099 C
Classification (IPC)H04W74/00 +1 more

Timeline

Timeline From CIPO dates

2002200420062008201020122014201620182020Application filedFeb 23, 2001Patent grantedSep 8, 2015Term endedFeb 23, 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.