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Expired Canadian patentCanada

Method and apparatus for adjusting channel quality indicator feedback period to increase uplink capacity

CA 2619875 C · Owner: Marinier, Paul · Inventors: Marinier, Paul; Castor, Douglas R.

CIPO record

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Abstract From the Canadian patent

A method and apparatus for adjusting a channel quality indicator (CQI) feedback period to increase uplink capacity in a wireless communication system are disclosed. The uplink capacity is increased by reducing the uplink interference caused by CQI transmissions. A wireless transmit/receive unit (WTRU) monitors a status of downlink transmissions to the WTRU and sets the CQI feedback period based on the status of the downlink transmissions to the WTRU. A base station monitors uplink and downlink transmission needs. The base station determines the CQI feedback period of at least one WTRU based on the uplink and downlink transmission needs and sends a command to the WTRU to change the …

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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 August 22, 2006 and granted November 26, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended August 22, 2026.
  • 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.
FiledAugust 22, 2006
GrantedNovember 26, 2013
Term endedAugust 22, 2026
Patent numberCA 2619875 C
Classification (IPC)H04B7/21

Timeline

Timeline From CIPO dates

2007200920112013201520172019202120232025Application filedAug 22, 2006Patent grantedNov 26, 2013Term endedAug 22, 2026

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