System and method for tight inter-working between wireless local area network (wlan) and universal mobile telecommunication systems (umts)
CA 2491440 A1 · Owner: Menon, Narayan Parappil · Inventors: Menon, Narayan Parappil; Chitrapu, Prabhakar R.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
In a system having a PLMN (12) and a WLAN IP GW (30) an Iur interface , providing handover between a PLMN and the WIP-GW. Mobile internet protocol (Mobile IP) provides session management and data tunneling between the PLMN (home agent) and the WLAN. The WIP-GW functions as the foreign agent toward the PLMN. Services are provided by the PLMN MIP over DIAMETER for registration, authentication and subscriber management working into the , HLR/HSS (14) and the CGF (18) in the PLMN. The use of a single architecture to support the loose inter-working scenarios is such that the architecture minus the Iur interface and MIP becomes a loose inter-working architecture. The UMTS PLMN billing …
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 July 1, 2003. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended July 1, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 1, 2025.
- 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.