发明名称 |
CYCLIC DELAY DIVERSITY AND PRECODING FOR WIRELESS COMMUNICATION |
摘要 |
Techniques for sending a MIMO transmission using a combination of cyclic delay diversity and precoding are described. A set of delays (e.g., zero delay, small delay, and large delay) for cyclic delay diversity and a set of precoding matrices may be supported. In one design, a Node B may select a delay specifically for a UE or for a set of UEs served by the Node B. In another design, a UE may evaluate different combinations of precoding matrix and delay, determine the combination with the best performance, and send this combination of precoding matrix and delay to the Node B. The Node B may perform precoding with the precoding matrix and then processing for cyclic delay diversity based on the selected delay. Alternatively, the Node B may perform processing for cyclic delay diversity based on the selected delay and then precoding with the precoding matrix. |
申请公布号 |
WO2008098092(A3) |
申请公布日期 |
2008.10.30 |
申请号 |
WO2008US53232 |
申请日期 |
2008.02.06 |
申请人 |
QUALCOMM INCORPORATED;KIM, BYOUNG-HOON;MALLADI, DURGA PRASAD;ZHANG, XIAOXIA;YOO, TAESANG |
发明人 |
KIM, BYOUNG-HOON;MALLADI, DURGA PRASAD;ZHANG, XIAOXIA;YOO, TAESANG |
分类号 |
H04B7/06 |
主分类号 |
H04B7/06 |
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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