发明名称 |
Code multiplexing transmitting apparatus |
摘要 |
A code multiplexing transmitting apparatus spread-spectrum modulates transmission data of a plurality of channels by spreading codes that differ from one another, combines the spread-spectrum signals of each of the channels and transmits the resultant spread-spectrum modulated signal. A spread-spectrum modulating unit for each channel includes a phase shifter for shifting, by a predetermined angle channel by channel, the phase of a position vector of the spread-spectrum modulated signal of each channel. As the result of such phase control, the phases of pilot signal portions of the spread-spectrum modulated signals of the respective channels are shifted relative to one another so that the peak values of the code-multiplexed signal can be suppressed.
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申请公布号 |
US6097714(A) |
申请公布日期 |
2000.08.01 |
申请号 |
US19970872358 |
申请日期 |
1997.06.10 |
申请人 |
FUJITSU LIMITED |
发明人 |
NAGATANI, KAZUO;OISHI, YASUYUKI;FUKUMASA, HIDENOBU;HAMADA, HAJIME;ASANO, YOSHIHIKO |
分类号 |
H04L27/20;H04B1/707;H04J13/00;H04J13/04;(IPC1-7):H04B7/216;H04B15/00;H04Q7/28 |
主分类号 |
H04L27/20 |
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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