Interference estimation for LTE receiver

摘要

A method of estimating interference in a received signal is disclosed. The method includes receiving a plurality of subcarriers from a remote transmitter. Each of the subcarriers is multiplied by a control signal. At least two of the subcarriers are compared to produce a differential signal. Interference is estimated in response to the differential signal.

主权项

1. A method of suppressing interference in a received signal, comprising:
receiving a plurality of subcarriers from a remote transmitter circuit by a receive antenna circuit; comparing at least two of the subcarriers to produce a plurality of differential signals; multiplying each differential signal by its Hermitian transpose to produce a plurality of products; adding the plurality of products to produce a sum of products in a covariance matrix; estimating the interference in response to the covariance matrix; and suppressing the interference in response to the step of estimating.