Transmission power control method, mobile station, base station, and recording medium
CA 2283501 C · Owner: Hagiwara, Seiji · Inventors: Hagiwara, Seiji; Kaneda, Ryusuke; Higashi, Akihiro
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Even if the reception qualities of the signals from the base stations connected are different from each other the transmission power of a mobile , phone can be appropriately controlled during a soft handover. A mobile phone (16) connectable to multiple base stations at the same time comprises a reception radio section (3) and TPC bit detecting sections (6 7) the three , for receiving and detecting TPC bits (transmission power control signal) from multiple base stations, a synthesizing section (8) for combining the detected TPC bits to generate a synthesized signal and a transmission power control , determining section (9) for controlling the transmission power of the mobile phone (16) …
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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 January 14, 1999 and granted July 8, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended January 14, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 14, 2021.
- 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.