METHOD AND DEVICE FOR DATA STREAM TRANSMISSION IN A MIMO SYSTEM

摘要

Provided is a method for data stream transmission in a multiple-input, multiple-output (MIMO) system, wherein each data stream maps to a plurality of layers in a MIMO channel space for transmission. The method comprises: interlayer interleaving N data streams, obtaining N post-interleaved data streams; mapping said N post-interleaved data streams onto N layers respectively in the MIMO channel space, and sending said data streams. Use of the method of the present invention enables better use of joint CQI to improve MIMO transmission performance, while interference cancellation technologies (such as SIC techniques) are used on the basis of interlayer interleaving to eliminate the impact of interlayer interference.