Method and apparatus for channel estimation and detection in MIMO system

摘要

The present invention provides a method for performing channel estimation and detection in a Multiple-Input-Multiple-Output (MIMO) system, including: generating a demodulation reference signal, DM-RS, pattern for an extended cyclic prefix (CP); and estimating and detecting channel performance based on the generated DM-RS signal pattern. The DM-RS pattern supports from rank 1 to rank 8 patterns for 8 layer transmission. A transmitter, a receiver and a system thereof are also provided. The solution of the present invention improves channel estimation accuracy, saves channel estimation implementation and implementation complexity at terminals.

主权项

1. A method for supporting channel estimation and detection in a Multiple-Input-Multiple-Output, MIMO, system, the method comprising:
generating, by a demodulation reference signal (DM-RS) pattern generator, a DM-RS pattern for subframe with an extended cyclic prefix (CP); and sending, by the transmitter, the generated DM-RS pattern to a user equipment for estimating and detecting channel performance, wherein the DM-RS pattern includes rank 1-2 pattern which supports for up to 2 layer transmission, and wherein the DM-RS pattern comprises a punctured version of normal subframe used for different downlink pilot time slot (DwPTS) cases.