METHOD AND APPARATUS FOR TRANSMITTING UPLINK SIGNALS USING MULTI-ANTENNA

摘要

A method and apparatus for allowing a UE to transmit uplink signals using a MIMO scheme are disclosed. In order to maintain good Peak power to Average Power Ratio (PAPR) or Cubic Metric (CM) properties when the UE transmits uplink signals using the MIMO scheme, the UE uses a precoding scheme based on a precoding matrix established in a manner that one layer is transmitted to each antenna in specific rank transmission.

主权项

1. A method for a transmitting device to transmit signals using SC-FDMA MIMO (Single Carrier-Frequency Divisional Multiple Access Multiple Input Multiple Output) scheme, the method comprising:
precoding signals of 2 layers by using a specific precoding matrix P multiplied by a predetermined constant value,whereinP∈{[10X0010Y],[1001X00Y],[10010YX0]},andX,Y∈{1,1+j2,j,1-j2,-1,-1-j2,-j,-1+j2};and
transmitting the precoded signals to a receiving device via 4 transmission antennas.