Method, apparatus and computer program for signal to noise and interference ratio estimation

摘要

A method, apparatus and computer program are provided for signal to noise and interference ratio (SNIR) and channel quality estimation. A signal to noise and interference ratio for a first round of processing of data received at an iterative receiver is determined (502). An estimation for a signal to noise and interference ratio for a second round of processing of the data received at the iterative receiver is made based on a change (Î ) (504). A channel quality measure can be estimated for the second round of processing based on the estimated signal to noise and interference ratio for the second round of processing based on the change (Î ). The change (Î ) may be based on a difference between the signal to noise and interference ratio to channel quality indication mapping for the iterative receiver and the signal to noise and interference ratio to channel quality indication mapping for a non-iterative receiver.