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Expired Canadian patentCanada

Method and system for switching antenna and channel assignments in broadband wireless networks

CA 2586315 C · Owner: Adaptix, Inc. · Inventors: Shen, Manyuan; Xing, Guanbin; Liu, Hui

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Abstract From the Canadian patent

A method and apparatus for antenna switching grouping, and channel , assignments in wireless communication systems. The invention allows multiuser diversity to be exploited with simple antenna operations therefore increasing , the capacity and performance of wireless communications systems. Channel characteristics indicative of signal reception quality for downlink or bidirectional traffic for each channel/antenna resource combination are measured or estimated at a subscriber. Corresponding channel characteristic information is returned to the base station. Channel characteristics information may also be measured or estimated for uplink or bi~directional signals received at each of …

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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 December 7, 2005 and granted June 10, 2014. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 7, 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.
FiledDecember 7, 2005
GrantedJune 10, 2014
Term endedDecember 7, 2025
Patent numberCA 2586315 C
Classification (IPC)H04B1/00

Timeline

Timeline From CIPO dates

2006200820102012201420162018202020222024Application filedDec 7, 2005Patent grantedJune 10, 2014Term endedDec 7, 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.