Microcell load measurement using feedback control
CA 2221398 C · Owner: Lee, David Y. · Inventors: Lee, David Y.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method and system are disclosed for determining load on a microcell in a telecommunications network. The network comprises a base station at least one, microcell controlled by the base station at least one terminal served by the microcell and feedback between the base station and the terminal. The feedback enables theterminal to provide an up-link signal indicative of a particular down-link signal from the microcell. The method embodiment of the invention involves transmitting a particular down-link signal from the microcell, and receiving an up-link signal from a terminal. Next a determination is made whether the up-link signal is indicative of the particular down-link signal. If it is, …
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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 November 18, 1997 and granted February 5, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 18, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 18, 2019.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.