Communication system and method with negotiable data rates
CA 2419117 C · Owner: Nec Corporation · Inventors: Hayashi, Sadafuku
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A WCDMA communication system that can provide a smooth data transmission even in a case when the communication rate associated with a communication service requested by a user cannot be obtained due to a lack of resources. In such a case, only when a base station control station (2-1,2-2) can provide a service by use of a communication rate lower than the requested communication rate instead of compulsorily setting to a lower alternative communication rate the , communication rate for actually effecting a data communication is adjusted between a switching center (1) and the base station control station (2-1,2-2). As a method of this, an indicator that shows whether the communication …
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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 August 10, 2001 and granted January 18, 2011. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended August 10, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 10, 2023.
- 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
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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.