Abstract
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.
| Technology | Declaration Information | Specification Information | Explicitly Disclosed | Patent Type | |||||
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| Declaration Date | Declaration Reference | Declaring Company | Specification Information | ||||||
| 4G | 09/04/2012 | ISLD-201204-008 | QUALCOMM INC | Yes | Basis Patent | ||||
| Not Available | 09/04/2012 | ISLD-201204-008 | QUALCOMM INC | Yes | Basis Patent | ||||
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