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Expired Canadian patentCanada

Dynamic learning of neighboring wireless cells

CA 2220780 C · Owner: Fidder, Ted M. · Inventors: Roberge, Kenneth J.; Hardouin, Larry J.; Chavez, David L. Jr.

CIPO record

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Abstract From the Canadian patent

Using dynamic learning techniques by a system controller to determine a subset of neighboring cell sites to which an activity transfer should be attempted. An activity transfer can be a handoff or registration. The neighboring cell sites that should be chosen for an activity transfer are specified for each cell site. The specified neighboring cell sites are determined by the dynamic learning process. In a first embodiment, the dynamic learning is accomplished by accumulating statistical data that defines the average call duration of each of the selected neighboring sites after an activity transfer to each. Advantageously this average duration can include, the total call duration for 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 November 12, 1997 and granted February 5, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 12, 2017.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 12, 2019.
  • 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 12, 1997
GrantedFebruary 5, 2002
Term endedNovember 12, 2017
Patent numberCA 2220780 C
Classification (IPC)H04W36/08

Timeline

Timeline From CIPO dates

1998200020022004200620082010201220142016Application filedNov 12, 1997Patent grantedFeb 5, 2002Term endedNov 12, 2017

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