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:
Apr. 27, 2010
Filed:
Nov. 21, 2002
David Bateman, Boulogne-Billancourt, FR;
Sebastian Simoens, Soeaux, FR;
Marc DE Courville, Paris, FR;
David Bateman, Boulogne-Billancourt, FR;
Sebastian Simoens, Soeaux, FR;
Marc De Courville, Paris, FR;
Freescale Semiconductor, Inc., Austin, TX (US);
Abstract
In an orthogonal frequency division multiplex communication system, for example a HIPERLAN/2 system, power amplifiers () of mobile terminals () are switched off when not in use, and then switched on again when a signal transmission is to be made. This conserves power, but introduces a power amplifier transient (). An access point (), i.e. a type of base station, compensates for these power amplifier transients () using a simple scalar constant gain transient correction, over a full OFDM symbol (or a plurality of OFDM symbols). The correction is updated on an OFDM symbol by symbol basis (or plurality of symbols by plurality of symbols basis).