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Expired Canadian patentCanada

Power control for a wireless communication system utilizing orthogonal multiplexing

CA 2875539 C · Owner: Qualcomm Incorporated · Inventors: Sutivong, Arak; Agrawal, Avneesh; Julian, David Jonathan

CIPO record

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Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

Techniques for adjusting transmit power to mitigate both intra-sector interference to a serving base station and inter-sector interference to neighbor base stations are described. The amount of inter-sector interference that a terminal may cause may be roughly estimated based on the total interference observed by each neighbor base station channel gains for the serving and neighbor base stations and the current transmit power level. The transmit power may be decreased if high interference is observed by a neighbor base station and increased otherwise. The transmit power may be adjusted by a larger amount and/or more frequently if the terminal is located closer to the neighbor base station …

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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 June 7, 2005 and granted October 11, 2016. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 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.
FiledJune 7, 2005
GrantedOctober 11, 2016
Term endedJune 7, 2025
Patent numberCA 2875539 C
Classification (IPC)H04W24/10 +1 more

Timeline

Timeline From CIPO dates

2006200820102012201420162018202020222024Application filedJune 7, 2005Patent grantedOct 11, 2016Term endedJune 7, 2025

Sources & verification

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