Process for determining time advance information in a cellular radiocommunication system, and corresponding intercell handover process and locating process
CA 2241340 A1 · Owner: Roberts, Michael · Inventors: Desorbay, Eric; Roberts, Michael
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to a process for determining time advance information in a cellular radiocommunication system of the type comprising the following steps: a mobile station interrupts (1) its communication on a current channel, with a first base station to send (2) to a second base station on a first target channel, a sequence of synchronization signals allowing the said second base station to calculate (4) time advance information associated with the said mobile station in relation to the said second base station; the mobile station resumes (3) its communication on the said current channel, with the first base station immediately after sending to the second base station the said …
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 July 6, 1998. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended July 6, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 6, 2020.
- 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.