Closed-loop power control scheme with prediction of power control commands and multi-level transmitted power adjustment
CA 2183139 C · Owner: Telecommunications Research Laboratories · Inventors: Krzymien, Witold A.; Shen, Qiang
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
In a wireless terminal used in a, telecommunications system in which control bits are sent from a base station to a wireless terminal (mobile station) to control the transmitted power of the wireless terminal a (linear) predictor is used at the wireless terminal to predict the accumulation of the received power control bits received by the mobile station, and use the difference of two successive predictor outputs to adjust the output power of the mobile in a multi-level (or continuous) increments fashion.
Read the whole patent
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 12, 1996 and granted November 18, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended August 12, 2016.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 12, 2018.
- 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.