Single-user multiple-input multiple-output (SU-MIMO) and multi-user MIMO (MU-MIMO) and a method and apparatus for supporting

摘要

You demonstrate concerning the technique in order support data transmission single user poly entry poly outputs (SU MIMO) with multi-user MIMO (MU MIMO) with of making use. When base station, time of given the multiple data streams, it is SU MIMO on the frequency resource, when the single user equipment (UE), or it is MU MIMO, it can transmit to multiple UE. With one feature, antenna port allocation for UE in the case of MU MIMO can be transmitted control information of down link (DCI) one of the format or by reusing multiple fields. With another feature, using hierarchical 2 tear structure, it can transmit the antenna port allocation for UE in the case of MU MIMO. Furthermore with another feature, as for UE, when being operational with the transmission mode support with SU MIMO and MU MIMO, way the channel quality indicator (only CQI) it reports, or in order CQI and the pre- coding queue indicator (PMI) to report both, through the significant layer, it can be constituted. Furthermore with another feature, as for UE, in order for SU MIMO and MU MIMO to be able support because of UE, it can report CQI.