Controlling power supply between a voltage generator, a load and a rechargeable battery

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 tran...

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Bibliographic Details
Main Authors Bateman, David, Simoens, Sebastian, De Courville, Marc
Format Patent
LanguageEnglish
Published 27.04.2010
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Summary: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).