Random access channel congestion control for broadcast teleservice acknowledgment messages
CA 2237828 A1 · Owner: Agarwal, Anjana · Inventors: Zhang, Bulin; Agarwal, Anjana; Talwalkar, Awinash Trimbak
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
One embodiment of the present invention is a method for controlling the number of mobile-telephones transmitting acknowledgments to broadcast short messages (BSM) over a same set of random access channels at a same time. In this embodiment the transmissions of BSM acknowledgments is controlled by the wireless communication system using random access channel restrictions and random access techniques. Specifically, the random access channel restrictions reduce collisions among acknowledging mobile-telephones and call processing mobile-telephones by allocating one or more specific random access channels over which a BSM acknowledgment can be transmitted and the random, access techniques reduce …
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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 May 19, 1998. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended May 19, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 19, 2020.
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Timeline
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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.