System and method for locating mobile units operating within a wireless communication system
CA 2291377 A1 · Owner: Nortel Networks Corporation · Inventors: Verdonk, Timothy C.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A wireless communication system constructed according to the present invention interfaces with a Service Control Point (SCP) to provide location information for a serviced mobile unit. The SCP sends a locate request to a Home Location Register (HLR) of the wireless communication system requesting the location of the serviced mobile unit. The HLR then accesses a serving Mobile Switching Center (MSC) the, serving MSC being identified by the HLR as currently servicing the mobile unit. Depending upon the particular constraints of the requested operation by the SCP (e.g. immediate locate request or most recent locate request) the, serving MSC either retrieves location information for the mobile …
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 December 1, 1999. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended December 1, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 1, 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.