Ofdma with adaptive subcarrier-cluster configuration and selective loading
CA 2431844 C · Owner: Adaptix, Inc. · Inventors: Li, Kemin; Zhang, Wenzhong; Liu, Hui
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method and apparatus for subcarrier selection for systems is described. In one embodiment, the system employs orthogonal frequency division multiple access (OFDMA). In one embodiment, a method for subcarrier selection compreses each of multiple subscribes measuring channel and interference information for subcarriers based on pilot symbols received from a base station at least one , of subscribers selecting a set of candidate subcarriers providing feedback , information on the set of candidate subcarriers to the base station andthe , one subscriber receiving an indicaiton of subcarriers to the base station and , the one subscriber receiving an indication of subcarriers of the set of …
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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 December 13, 2001 and granted February 7, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 13, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 13, 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.
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Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.