Method and apparatus for improving radio spectrum usage and decreasing user data delay when providing packet psi status
CA 2434266 C · Owner: Qualcomm Incorporated · Inventors: Kangas, Antti O
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method provides for operating a wireless communication system having packet data capabilities, and includes steps of: (a) sending a message from a mobile station to a network on a same physical channel that is used to transmit packet data, the message specifying individual ones of packet system information (PSI) messages that are required for reception by the mobile station; and (b) in response to receiving the message transmitting only the , specified individual ones of the PSI messages from the network to the mobile station over the same physical channel used to transmit the packet data.
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 January 3, 2002 and granted May 22, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended January 3, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 3, 2024.
- 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.