Patent ID: 9306642
Filing Date: 2016-04-05
CPC Classification: H04B,H04L

Claim Text:
1. A method for providing channel state information about a radio channel established between a first network element and a second network element, the method comprising: providing an estimate of a channel coefficient of the radio channel for a time step n based on at least one signal, in particular a pilot signal, transmitted over the radio channel from the first network element to the second network element, making a prediction of the channel coefficient of the radio channel for the same time step n based on previous estimates; feeding back information about an error between the prediction and the estimate of the channel coefficient from the second network element to the first network element, updating the prediction coefficients, and providing feedback information about the updated prediction coefficients from the second network element to the first network element, the information about the updated prediction coefficients being fed back less frequently than the information about the error between the prediction and the estimate.