Method of selectively directing a mobile station to retry system access in a radio telecommunication system
CA 2332719 A1 · Owner: Telefonaktiebolaget Lm Ericsson · Inventors: Desgagne, Michel
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method of reducing co-channel interference in a cellular telecommunication system having a congested serving cell a plurality of neighbor cells , controlled by a mobile switching center (MSC) and an accessing mobile station , attempting to access the cellular system in the serving cell. The MSC fetches (16) signal strength information from mobile stations camped on the serving cell's digital control channel (DCCH). The signal strength information includes received signal strengths at the camped mobile stations from the serving cell and the neighbor cells. The MSC then fetches (27) signal strength information from busy mobile stations involved in on-going calls in the serving cell. …
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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 May 4, 1999. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended May 4, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 4, 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.