The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 08, 2008
Filed:
Mar. 08, 2002
Frank Bastiaan Brouwer, Enschede, NL;
Frank Bastiaan Brouwer, Enschede, NL;
Telefonaktiebolaget L M Ericsson (publ), Stockholm, SE;
Abstract
Speed indication device () for determining a speed indication signal () indicating a speed of a wireless mobile telecommunication device () relative to the speed indication device (), wherein the speed indication device () determines the speed indication signal () from a sequence of transmit power control commands sent by the wireless mobile telecommunication device () to an access point () in a wireless telecommunication device () to an access point () in a wireless telecommunication network for controlling, in use, a transmit power of a radio signal transmitted by the access point () to the wireless mobile telecommunication device (). If the relative speed is found to be above a threshold, the speed may be calculated using a measurement of the Doppler frequency.