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Expired Canadian patentCanada

Method and system for performing a handoff in a wireless communication system, such as a hard handoff

CA 2380368 C · Owner: Sarkar, Sandip · Inventors: Odenwalder, Joseph P.; Tiedemann, Edward G. Jr.; Sarkar, Sandip

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Abstract From the Canadian patent

A mobile station (102) transmits a plurality of channels including a pilot channel and at least one information channel. In the exemplary embodiment the , base station (106) determines the adequacy of the transmission energy of the reverse link signal in accordance with the received energy of the reverse link pilot signal. In the present invention the pilot channel transmission power , is retained at the level it was prior to the frequency search excursion while , increasing the transmission energy of at least one other channel transmitted by the mobile station. In addition, when the mobile station (102) is not capable of increasing the transmission energy of all of the information …

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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 11, 2000 and granted October 9, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended August 11, 2020.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 11, 2022.
  • 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 11, 2000
GrantedOctober 9, 2012
Term endedAugust 11, 2020
Patent numberCA 2380368 C
Classification (IPC)H04W52/28 +2 more

Timeline

Timeline From CIPO dates

2001200320052007200920112013201520172019Application filedAug 11, 2000Patent grantedOct 9, 2012Term endedAug 11, 2020

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