Patent ID: 9276777
Filing Date: 2016-03-01
CPC Classification: H04B,H04L

Claim Text:
1. A method, comprising: receiving a first signal at a circuit from a first base station; receiving a second signal at the circuit from a second base station that is different than the first base station; determining a first channel estimate based on the first signal; determining a second channel estimate based on the second signal; determining a noise power based on a resource element, wherein the resource element is muted with respect to the first base station and with respect to the second base station, wherein, for a subcarrier and a time instant associated with the resource element, the first base station suppresses transmission of the first signal and the second base station suppresses transmission of the second signal; and determining a feedback information based on the first channel estimate, the second channel estimate, and the noise power, wherein the feedback information is based at least in part on a cross-correlation between the first signal and the second signal, wherein the feedback information is based at least in part on a signal-to-interference-plus-noise ratio (SINR), wherein the SINR for a k-th subcarrier, an n-th time instant, and an I-th transmission layer is given by SINR wherein {tilde over (K)} k,n (I,i) is an element in an I-th row and an i-th column of a matrix {tilde over (K)} k,n , wherein {tilde over (F)} k,n (I,i) is an element in an I-th row and an i-th column of a matrix {tilde over (F)} k,n that is a function of a filter matrix F k,n that represents filter coefficients, and wherein the matrix {tilde over (K)} k,n is a function of the filter matrix F k,n and a channel matrix that is based on the first signal and based on the second signal.