A packet data communications system
CA 2185357 C · Owner: Nortel Networks Corporation · Inventors: Alles, Martin C.; Tse, Paul C.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method of setting a channel congestion message in a wireless multiple access packet data system in which the channel congestion message is broadcast on the forward channel of the system and communication over the reverse channel is in the form of bursts. The method comprises the steps of: measuring an actual fraction of undecodable bursts on the reverse channel; measuring traffic parameters of the reverse channel; predicting from the measured traffic parameters an expected fraction of undecodable bursts for optimum throughput on the reverse channel; comparing the actual and expected fractions of undecodable bursts; and setting the congestion message according to the result of 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 October 5, 1995 and granted September 4, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 5, 2015.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 5, 2017.
- 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.