Improved method of operating a mobile telecommunications network
CA 2351047 A1 · Owner: Chen, Xiaobao X. · Inventors: Chen, Xiaobao X.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
In a third generation mobile telecommunications network when a mobile is in a, foreign network packets are addressed to it by a home agent which changes the header, so that the source address is the home agent address and the destination address is the, Care of Address of the mobile. Identifier codes for the mobile node and correspondent, node are included in the packet header and tables of identifier codes and the correspondent nodes are retained by the home agent and sent to a foreign agent (FA, COA working) or mobile node (CO-COA working) which readdress each received packet, to a higher layer or to an application as appropriate. In this non-encapsulated mode of working packets are …
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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 June 19, 2001. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended June 19, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 19, 2023.
- 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.