PHASE NOISE CANCELLATION METHOD AND APPARATUS IN 2amp;times;2 MIMO SYSTEM WITH INDEPENDENT OSCILLATORS

摘要

The present invention discloses a phase noise cancellation method and apparatus in a 2×2 MIMO system with independent oscillators for antenna terminals. The present invention provides a phase noise cancellation method in a 2×2 MIMO system with independent oscillators for antenna steps, the phase noise cancellation method including the steps of: (a) calculating a transmission common phase error including a common phase error of a first antenna terminal and a common phase error of a second antenna terminal of a transmission terminal; (b) calculating a reception common phase error including a common phase error of a first terminal and a common phase error of a second terminal of a reception terminal; (c) calculating a combined common phase error for a combination of the antennas of the transmission terminal and the reception terminal by using the transmission common phase error, the reception common phase error, a received signal, and a channel matrix; and (d) correcting a phase error by using the combined common phase error. According to the present invention, two equations may be induced because two signals (two reception antennas) are provided for two sub carriers.;COPYRIGHT KIPO 2016