发明名称 |
RAKE-mottagare och fingerstyrförfarande vid spridspektrumskommunikation |
摘要 |
<p>A RAKE receiver (112) includes a plurality of fingers (122, 124, 126, 128). Each finger includes a demodulator (402) for demodulating a ray of a multipath signal and a time tracking circuit (404) for controlling the time position of the finger in accordance with time position of the ray. A low delay-spread condition is detected and the positions of two adjacent fingers are controlled to prevent convergence of two or more fingers about a common time position. By maintaining finger timing separation, path diversity is exploited by the RAKE receiver even during the low delay-spread condition to improve receiver performance.</p> |
申请公布号 |
FI981939(A) |
申请公布日期 |
1999.03.17 |
申请号 |
FI19980001939 |
申请日期 |
1998.09.09 |
申请人 |
MOTOROLA, INC. |
发明人 |
LAROSA, CHRISTOPHER P.;CARNEY, MICHAEL J.;BECKER, CHRISTOPHER J.;EBERHARDT, MICHAEL A.;FRANK, COLIN D.;RASKY, PHILLIP D. |
分类号 |
H04B1/7113;H04B1/7115;H04B1/7117;(IPC1-7):H04B |
主分类号 |
H04B1/7113 |
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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