发明名称 |
POWER AMPLIFIER TRANSIENT COMPENSATION IN OFDM SYSTEMS |
摘要 |
In an orthogonal frequency division multiplex communication system, for example a HIPERLAN/2 system, power amplifiers (224) of mobile terminals (4, 6) 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 (315). An access point (2), i.e. a type of base station, compensates for these power amplifier transients (315) 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).
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申请公布号 |
WO03047195(A1) |
申请公布日期 |
2003.06.05 |
申请号 |
WO2002EP13060 |
申请日期 |
2002.11.21 |
申请人 |
MOTOROLA INC;BATEMAN, DAVID;SIMOENS, SEBASTIAN;DE COURVILLE, MARC |
发明人 |
BATEMAN, DAVID;SIMOENS, SEBASTIAN;DE COURVILLE, MARC |
分类号 |
H04J11/00;H04L25/03;(IPC1-7):H04L27/26;H03G3/20 |
主分类号 |
H04J11/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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