发明名称 |
A METHOD AND APPARATUS FOR IMPAIRMENT CORRELATION ESTIMATION IN A WIRELESS COMMUNICATION RECEIVER |
摘要 |
A wireless communication receiver improves signal impairment correlation estimation in MIMO/MISO systems by considering different transmit power allocations and different transmit antenna power distributions in its impairment correlation calculations. The receiver may be implemented in according to a variety of architectures, including, but not limited to, Successive Interference Cancellation (SIC) Generalized RAKE (G-RAKE), Joint Detection (JD) G-RAKE, and Minimum Mean Squared Error (MMSE) G-RAKE. Regardless of the particular receiver architecture adopted, the improved impairment correlations may be used to calculate improved (RAKE) signal combining weights and/or improve channel quality estimates for reporting by receivers operating in Wideband CDMA (W-CDMA) systems transmitting HSDPA channels via MIMO or MISO transmitters. A transmitter may be configured to facilitate impairment correlation determinations by wireless communication receivers operating in MIMO/MISO environments, by signaling one or more values, e.g., data-to-pilot signal transmit power ratios and/or transmit antenna power distributions for the data and pilot signals. |
申请公布号 |
WO2006132593(A3) |
申请公布日期 |
2007.01.18 |
申请号 |
WO2006SE50187 |
申请日期 |
2006.06.09 |
申请人 |
TELEFONAKTIEBOLAGET LM ERICSSON (PUBL) |
发明人 |
GRANT, STEPHEN;KRASNY, LEONID;WANG, YI-PIN, ERIC;MOLNAR, KARL, J.;CHENG, JUNG-FU |
分类号 |
H04B1/707;H04B7/06 |
主分类号 |
H04B1/707 |
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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