A system and a method relating to packet data communication
CA 2324448 A1 · Owner: Karlsson, Johanna · Inventors: Sundell, Hans-Olof; Karlsson, Johanna; Hall, Goran
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention relates to a cellular communication system supporting packet data communication including a number of switching arrangements for switching speech and/or circuit switched data and a number of packet data , nodes (1) each controlling the packet data communication in a number of packet paging areas (10). Means are provided for calculating which packet data communication channels are to be used for mobile stations after updating of a cell. Furthermore means are provided for keeping information about which cells have been updated and when a cell is updated paging of a mobile station (MS1) , in a stand-by state is performed by sending a number of first paging messages …
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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 March 5, 1999. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended March 5, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 5, 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.