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Expired Canadian patentCanada

Method and apparatus for determining and managing congestion in a wireless communications system

CA 2580311 C · Owner: Ali, Ahmed · Inventors: Rahman, Shamim Akbar; Cuffaro, Angelo; Ali, Ahmed

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Abstract From the Canadian patent

An improved method of network management particularly in the context of , standards IEEE802.11 and IEEE802.11k through two new MAC measurements, with attendant advantages. The two new measurements include WTRU uplink traffic loading measurement, and an AP service loading measurement and is generally applicable at least to layers 1 and 2 as applied to a least 802.11k in the context of OFDM and CDMA 2000 systems, but is applicable to other scenarios as well. A Method for determining and advertising congestion is also provided for a Wireless Local Area Network (WLAN) system. The present invention also introduces a method for managing congestion when congestion is detected. This aspect …

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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 September 13, 2005 and granted September 9, 2014. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 13, 2025.
  • 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.
FiledSeptember 13, 2005
GrantedSeptember 9, 2014
Term endedSeptember 13, 2025
Patent numberCA 2580311 C
Classification (IPC)H04W28/06 +1 more

Timeline

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2006200820102012201420162018202020222024Application filedSep 13, 2005Patent grantedSep 9, 2014Term endedSep 13, 2025

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