Wireless communications methods and apparatus employing paging attribute descriptors
CA 2350438 A1 · Owner: Ericsson Inc. · Inventors: Raith, Alex Krister
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A paging attribute descriptor (PAD) indicates the content of a page message is transmitted in a first time slot and/or a succeeding second time slot of a physical channel, and the page message is transmitted in the second time slot. The second slot may be, for example, a Digital Control Channel (DCCH) slot mapped on a physical channel (DTCH) of an IS-136 system. The transmitted PAD is recovered at wireless station, which then determines whether to recover the page message based on the recovered PAD e.g. if the PAD indicates that the , page message is an empty page message a page message addresed to another , wireless station or a page message that includes control information that has …
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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 November 9, 1999. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended November 9, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 9, 2021.
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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.