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Expired Canadian patentCanada

Method and system for providing channel assignment information used to support uplink and downlink channels

CA 2546091 C · Owner: Dick, Stephen G. · Inventors: Pietraski, Philip J.; Dick, Stephen G.; Rudolf, Marian

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Abstract From the Canadian patent

A method and wireless communication system for providing channel assignment information used to support an uplink (UL) channel and a downlink (DL) channel. The system includes at least one Node-B and at least one wireless transmit/receive unit (WTRU). The WTRU communicates with the Node-B via a common control channel, the UL channel and the DL channel. The WTRU receives a message from the Node-B via the common control channel. The message includes an indication of whether the message is intended for assigning radio resources to the UL channel or the DL channel. The WTRU determines whether the message is intended for the WTRU and, if so, the WTRU determines whether the message is …

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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 18, 2004 and granted December 29, 2015. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 18, 2024.
  • 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.
FiledNovember 18, 2004
GrantedDecember 29, 2015
Term endedNovember 18, 2024
Patent numberCA 2546091 C
Classification (IPC)H04W8/26

Timeline

Timeline From CIPO dates

2005200720092011201320152017201920212023Application filedNov 18, 2004Patent grantedDec 29, 2015Term endedNov 18, 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.