Multi-Antenna Transmission Method, Terminal and Base Station

摘要

Disclosed are a multi-antenna transmission method, a terminal and a base station, wherein, an eNB sends a UE a SRS transmission mode including new SRS transmission port information and/or a signaling for instructing the UE to perform antenna group alternate transmission as well as a control signaling required by the SRS transmission mode; the UE transmits a SRS using the abovementioned SRS transmission mode, and the eNB estimates a channel information according to the SRS and calculates and transmits a precoding matrix.

主权项

1. A multi-antenna signal transmission method, wherein the method comprises:
an evolved Node B (eNodeB) sending a user equipment (UE) a sounding reference signal (SRS) transmission mode as well as a control signaling required by the SRS transmission mode, wherein the SRS transmission mode comprises new SRS transmission port information of the UE determined according to the maximum number of UE's reception antennas or the maximum number of antennas which can be used for transmission and/or a signaling for instructing the UE to perform an antenna group alternate transmission; the eNodeB receiving a SRS sent by the UE using the SRS transmission mode according to the control signaling, and the eNodeB estimating channel information between the eNodeB and the UE according to the SRS; the eNodeB performing a downlink multiple-input multiple-output (MIMO) precoding matrix calculation and transmission according to the channel information; or the eNodeB performing a PUSCH antenna group selection and an uplink MIMO precoding matrix calculation and transmission according to the channel information and the UE performing an uplink MIMO signal transmission in a PUSCH antenna group selected by the eNodeB.