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Expired Canadian patentCanada

Wireless communication method and apparatus coordinating node-b's and supporting enhanced uplink transmissions during handover

CA 2836724 C · Owner: Rnb Wireless Llc · Inventors: Zhang, Guodong; Terry, Stephen E.; Dick, Stephen G.

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Abstract From the Canadian patent

A wireless communication method and apparatus for coordinating Node-Bs during handover for enhanced uplink (EU) transmission. In one embodiment a radio network controller (RNC) initiates an inter-Node-B soft handover. A wireless transmit/receive unit (WTRU) establishes communication connections with a plurality of Node-Bs. A particular one of the Node-Bs is designated as being a primary Node-B and each of other Node-Bs are designated as being a non-primary Node-B. The RNC informs all of the Node-Bs that the particular Node-B is a primary Node-B. The primary Node-B schedules EU transmission and performs ACK/NACK during soft handover. In another embodiment the RNC initiates a hard handover …

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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 October 29, 2004 and granted November 7, 2017. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 29, 2024.
  • 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.
FiledOctober 29, 2004
GrantedNovember 7, 2017
Term endedOctober 29, 2024
Patent numberCA 2836724 C
Classification (IPC)H04W36/18

Timeline

Timeline From CIPO dates

2005200720092011201320152017201920212023Application filedOct 29, 2004Patent grantedNov 7, 2017Term endedOct 29, 2024

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