发明名称 |
METHOD AND APPARATUS FOR SUPPORTING SINGLE-USER MULTIPLE-INPUT MULTIPLE-OUTPUT (SU-MIMO) AND MULTI-USER MIMO (MU-MIMO) |
摘要 |
Techniques for supporting data transmission with single-user multiple-input multiple-output (SU-MIMO) and multi-user MIMO (MU-MIMO) are described. A base station may transmit multiple data streams on a given time-frequency resource to a single user equipment (UE) for SU-MIMO or to multiple UEs for MU-MIMO. In an aspect, an antenna port assignment for a UE for MU-MIMO may be conveyed by reusing one or more fields of a downlink control information (DCI) format. In another aspect, a hierarchical two-tier structure may be used to convey an antenna port assignment for a UE for MU-MIMO. In yet another aspect, a UE may be configured via higher layer to report only channel quality indicator (CQI), or both CQI and precoding matrix indicator (PMI), when operating in a transmission mode supporting SU-MIMO and MU-MIMO. In yet another aspect, a UE may report CQI such that SU-MIMO and MU-MIMO can be supported for the UE. |
申请公布号 |
WO2011019962(A2) |
申请公布日期 |
2011.02.17 |
申请号 |
WO2010US45381 |
申请日期 |
2010.08.12 |
申请人 |
QUALCOMM INCORPORATED;GOROKHOV, ALEXEI Y.;MONTOJO, JUAN;CHEN, WANSHI |
发明人 |
GOROKHOV, ALEXEI Y.;MONTOJO, JUAN;CHEN, WANSHI |
分类号 |
H04B7/04;H04B7/06 |
主分类号 |
H04B7/04 |
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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