Method and apparatus for data transport in a wireless communication system
CA 2442622 C · Owner: Qualcomm Incorporated · Inventors: Hsu, Raymond T.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Method and apparatus for data packet transport in a wireless transmission system supporting broadcast transmissions. Broadcast streams are provided in IP packets routed to a subscriber group. The PDSN applies an outer header to each broadcast stream frame identifying the frame as part of a multi-cast transmission. The PDSN transmits the frames to at least on PCF wherein the , PCF duplicates the received frame for each user in the subscription group alleviating the processing of the PDSN.
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 March 28, 2002 and granted May 22, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 28, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 28, 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.