发明名称 Radio med effektiv modulering av toppeffekt och bandbredd
摘要 A communication device (300) includes a digital modulator (301), a Digital Signal Processor (306), and an amplifier (312). The digital modulator (301) includes an information generator (304) and a peak suppression device (402). The peak suppression device (402) includes a symbol mapper (404) and a symbol scaler (406). The information generated by the generator (401) are mapped on a constellation diagram via the symbol mapper (404). The mapped information is then scaled at the scaler (406) in order to reduce the peak-to-average ratio of the signal at the input to the amplifier (312).
申请公布号 SE9704633(L) 申请公布日期 1998.02.05
申请号 SE19970004633 申请日期 1997.12.12
申请人 MOTOROLA INC 发明人 MILLER SCOTT L;O'DEA ROBERT J
分类号 H04L27/18;H04B1/04;H04L27/20;H04L27/34;H04L27/36;(IPC1-7):H04L27/36 主分类号 H04L27/18
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