发明名称 |
EQUALIZED PARALLEL INTERFERENCE CANCELLATION (EPIC) FOR CDMA SYSTEMS |
摘要 |
A new multiuser detection scheme EPIC (Equalized Parallel Interference Cancellation) is disclosed. A rake receiver signal zRake output by a rake receiver is detected, which receives a spread spectrum composite signal r comprising plural user signals b1,b2,..,bK that have been spread with spreading codes. At first, first hard-decision values bRake are produced on the basis of the rake receiver outputs. Then, first parallel interference cancellation values are produced on the basis of the first hard-decision values, and second hard-decision values bPIC are produced on the basis of the first parallel interference cancellation values. After that, the first and second hard-decision values are combined for producing first combination values, and second parallel interference cancellation values are produced on the basis of the first combination values. Finally, third hard-decision values are produced on the basis of the second parallel interference cancellation values and the third hard-decision values are output as first stage equalized parallel interference cancellation values bEPIC(1).
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申请公布号 |
WO0229993(A1) |
申请公布日期 |
2002.04.11 |
申请号 |
WO2000EP09825 |
申请日期 |
2000.10.06 |
申请人 |
NOKIA CORPORATION;WANG, HAIFENG;BU, ZHIYONG;LILLEBERG, JORMA |
发明人 |
WANG, HAIFENG;BU, ZHIYONG;LILLEBERG, JORMA |
分类号 |
H04B1/707;(IPC1-7):H04B1/707 |
主分类号 |
H04B1/707 |
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