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 |
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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