Interference Detection in Radio Access Network

A method for a network node of a radio access network, comprising:

• acquiring, by the network node, a first equalized signal representing a signal received by a first radio head serving a terminal device, the first equalized signal comprising a signal received by the first radio head from the terminal device;
• acquiring, by the network node, a second equalized signal representing a signal received by a second radio head not serving the terminal device, wherein the second radio head is spatially distant from the first radio head;
• cross-correlating, by the network node, the first equalized signal with the second equalized signal and determining, on the basis of said cross-correlating, whether or not the second equalized signal also comprises a signal received from the terminal device;
• and
• as a result of the second equalized signal being determined to comprise the signal received from the terminal device, causing by the network node execution of an interference management action.

A computer program product embodied on a non-transitory computer-readable medium and comprising a computer program code readable by a computer, wherein the computer program code configures the computer to carry out a computer process in a network node of a radio access network, the computer process comprising:

• acquiring a first equalized signal representing a signal received by a first radio head serving a terminal device, the first equalized signal comprising a signal received by the first radio head from the terminal device;
• acquiring a second equalized signal representing a signal received by a second radio head not serving the terminal device, wherein the second radio head is spatially distant from the first radio head;
• cross-correlating the first equalized signal with the second equalized signal and determining, on the basis of said cross-correlating, whether or not the second equalized signal also comprises a signal received from the terminal device;
• and
• as a result of the second equalized signal being determined to comprise the signal received from the terminal device, causing execution of an interference management action.