Mobile station assisted timing synchronization in a cdma communication system
CA 2614568 A1 · Owner: Qualcomm Incorporated · Inventors: Tiedemann, Edward G. Jr.; Wheatley, Charles E. Iii
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
In the present invention, the slave base station (64) attains synchronization with the , reference base station (62) through messages transmitted from and received by a mobile station , (60) in the soft handoff region between the reference base station (62) and the slave base station , (64). First, the round trip delay between the mobile station (60) and the reference base station , (62) is measured by the reference base station (62). Once the mobile station (60) acquires the , signal from the slave base station (64) it measures and reports the , difference between the amount of time it takes a signal to travel from the reference base station (62) to it and the amount , of time it …
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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 September 18, 1998. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended September 18, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 18, 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.