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Expired Canadian patentCanada

Efficient support for tdd beamforming via constrained hopping and on-demand pilot

CA 2609066 C · Owner: Khandekar, Aamod · Inventors: Khandekar, Aamod; Sutivong, Arak; Palanki, Ravi

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Abstract From the Canadian patent

Systems and methodologies are described that facilitate providing timedivision duplexed beam-forming support in traditionally non-time-division duplexed wireless systems, such as an OFDMA system a WCDMA system, etc. , According to an aspect a base station can analyze pilot information such as , a portion of bandwidth over which a user device is transmitting and can , transmit on the downlink using pre-hopped portion of bandwidth utilized by the user device on the preceding reverse link time slot. The base station can additionally transmit bandwidth segment reassignments to the user device to facilitate bandwidth segment hopping between user devices served by the 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 May 18, 2006 and granted January 14, 2014. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 18, 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.
FiledMay 18, 2006
GrantedJanuary 14, 2014
Term endedMay 18, 2026
Patent numberCA 2609066 C
Classification (IPC)H04W16/10 +1 more

Timeline

Timeline From CIPO dates

2007200920112013201520172019202120232025Application filedMay 18, 2006Patent grantedJan 14, 2014Term endedMay 18, 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.