Method and apparatus for link layer assisted handoff
CA 2570726 C · Owner: Google Technology Holdings Llc · Inventors: Natarajan, Kadathur S.; Baba, Kamel A.; Ali, Mohammed D.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Various embodiments are described to address the need for an apparatus and method that improves upon known handoff techniques such as Mobile IP and Fast , Mobile IP to improve the mobility experience of an end user. OSI layer 2originated indications of a handoff being imminent (301 501, 502), a link , down for handoff (307 509, 510), and a new link up after handoff (309 511, 512) are introduced. These indications can be used by applications (such as real-time/streaming applications on the mobile (101)) to take suitable proactive measures prior to an actual handoff. Examples of such measures include the buffering of data to be used during the handoff interval in a way that improves the …
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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 31, 2006 and granted June 5, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 31, 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.