Apparatus and method for space-time-frequency block coding using channel quality indicators (cqis)
CA 2575701 C · Owner: Chae, Chan-Byoung · Inventors: Oh, Jeong-Tae; Kim, Jae-Yoel; Park, Dong-Seek
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A space-time-frequency block coding apparatus and method in a transmitter with three , transmit (Tx) antennas are provided. An input symbol sequence is transmitted through , three Tx antennas according to a set method using feedback information received from a , receiver or using a selected transmission matrix having regularities in order to improve , performance of an STFBC. In particular the STFBC is selected based on , feedback information from the receiver. The receiver can provide (i) channel quality information; , or (ii) a STFBC index calculated at the receiver (using Equation (16)). The transmitter , then either (i) selects the STFBC based on the channel quality information …
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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 17, 2005 and granted April 10, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended August 17, 2025.
- Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
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Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.