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Expired Canadian patentCanada

Method and apparatus for data transportation and synchronization between mac and physical layers in a wireless communcation system

CA 2897202 C · Owner: Wi-Lan, Inc. · Inventors: Stanwood, Kenneth L.; Behar, Jacques; Samad, Gary Lee, Jr.

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Abstract From the Canadian patent

The present invention is a novel method and apparatus for efficiently transporting and synchronizing data between the Media Access Control (MAC) and physical communication protocol layers in a wireless communication system. Depending on the length of the MAC packet to be transported the present invention either fragments or concatenates the MAC packet when mapping to the physical layer. When a MAC packet is too long to fit in one TC/PHY packet the MAC packet is fragmented and the resultant multiple TC/PHY packets are preferably transmitted back-to-back within the same TDD frame. When a MAC packet is shorter than a TC/PHY packet the next MAC packet is concatenated with the current MAC packet …

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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 October 26, 2000 and granted April 26, 2016. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 26, 2020.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 26, 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.
FiledOctober 26, 2000
GrantedApril 26, 2016
Term endedOctober 26, 2020
Patent numberCA 2897202 C
Classification (IPC)H04W72/04 +2 more

Timeline

Timeline From CIPO dates

2001200320052007200920112013201520172019Application filedOct 26, 2000Patent grantedApril 26, 2016Term endedOct 26, 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.