Radio receiver device with a neural network, and related methods and computer programs

A method, comprising:

• receiving, at a radio receiver device, a radio signal comprising a pilot signal, over a radio channel;
• performing, by the radio receiver device, raw channel estimation of the radio channel based on the received pilot signal, thereby obtaining a raw channel estimate;
• and
• processing, by the radio receiver device, the raw channel estimate, wherein the processing of the raw channel estimate comprises applying, by the radio receiver device, a neural network, NN, to the raw channel estimate, the NN comprising at least one fully connected layer and at least one convolutional layer, and the NN being executable to:
• encode the raw channel estimate by mapping the raw channel estimate into an alternate domain, thereby obtaining an encoded channel estimate;
• and
• decode the encoded channel estimate by mapping the encoded channel estimate to a frequency-interpolated channel estimate.

A non-transitory computer readable medium comprising instructions for for causing a radio receiver device to perform at least receive a radio signal comprising a pilot signal, over a radio channel;

• perform raw channel estimation of the radio channel based on the received pilot signal, thereby obtaining a raw channel estimate;
• and process the raw channel estimate, wherein the processing of the raw channel estimate comprises applying a neural network, NN, to the raw channel estimate, the NN comprising at least one fully connected layer and at least one convolutional layer, and the NN being executable to:
• encode the raw channel estimate by mapping the raw channel estimate into an alternate domain, thereby obtaining an encoded channel estimate;
• and decode the encoded channel estimate by mapping the encoded channel estimate to a frequency-interpolated channel estimate.