Emergency circuit-mode call support
CA 2622751 C · Owner: Edge, Stephen · Inventors: Wachter, Andreas; Edge, Stephen; Burroughs, Kirk
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Techniques to support emergency circuit-mode calls are described. The techniques may be used for various 3GPP and 3GPP2 networks various location , architectures, and various types of User Equipment (UE). A UE establishes a circuit-mode call with a wireless network for emergency services. The UE interacts with a location server indicated by the wireless network. The UE performs user plane location with the location server during the circuit-mode call to obtain a position estimate for the UE. The UE communicates with a PSAP, which may be selected based on the position estimate for the emergency , circuit-mode call. The UE may perform positioning with the location server to obtain an …
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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 September 15, 2006 and granted May 3, 2016. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 15, 2026.
- Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
- 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.