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Expired Canadian patentCanada

Wireless communication method and apparatus for providing high speed downlink packet access services

CA 2520006 C · Owner: Miller, James M. · Inventors: Rudolf, Marian; Miller, James M.

CIPO record

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Abstract From the Canadian patent

A method and wireless multi-cell communication system for providing high speed downlink packet access (HSDPA) services (FIG. 1). The system includes a radio network controller (RNC) (105) in communication with a plurality of base stations (110, 115 and 120). The RNC sends a control signal (140A 140B,and , 140C) to at least one base station having a plurality of timeslots e.g. in a , time division duplex (TDD) system and/or frames including transmission timing intervals (TTIs), e.g. in a frequency division duplex (FDD) system assigned thereto for the establishment of HSDPA channels. The control signal indicates a maximum allowed HSDPA transmit power for each of the timeslots and/or …

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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 March 23, 2004 and granted May 7, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 23, 2024.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 23, 2026.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledMarch 23, 2004
GrantedMay 7, 2013
Term endedMarch 23, 2024
Patent numberCA 2520006 C
Classification (IPC)H04W52/14

Timeline

Timeline From CIPO dates

2005200720092011201320152017201920212023Application filedMarch 23, 2004Patent grantedMay 7, 2013Term endedMarch 23, 2024

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