Base station, mobile station and method
CA 2611940 C · Owner: Ntt Docomo, Inc. · Inventors: Sawahashi, Mamoru; Higuchi, Kenichi
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A base station performs communication of an orthogonal frequency division multiplexing (OFDM) scheme with a mobile station by using any one of equal to or greater than two frequency bands. The base station includes means that transmits a synchronization channel and a control channel using a band that includes a center frequency f A on a raster of a first band (20MHz) and that has a bandwidth equal to or greater than that of a second band (5MHz of the end). The control channel includes center frequency information for specifying a center frequency f A' of the second band. Since the mobile station moves to a desired band after obtaining center frequency information using a band …
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 June 13, 2006 and granted January 16, 2018. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 13, 2026.
- Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
- 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.