High-performance diagonal loading for MMSE equalization

摘要

A method includes, in a mobile communication terminal, receiving downlink signals from at least two antennas. A signal covariance matrix for the received signals is calculated. Each diagonal element of the signal covariance matrix is enlarged by a respective antenna-specific value that depends on a respective antenna associated with the diagonal element. Equalizer coefficients are computed based on the signal covariance matrix having the enlarged diagonal elements. The received downlink signals are equalized using the equalizer coefficients.

主权项

1. A method, comprising:
in a mobile communication terminal, receiving downlink signals from at least two antennas; calculating a signal covariance matrix for the received signals; enlarging each diagonal element of the signal covariance matrix by a respective antenna-specific value that depends on a respective antenna associated with the diagonal element; computing equalizer coefficients based on the signal covariance matrix having the enlarged diagonal elements; and equalizing the received downlink signals using the equalizer coefficients.