A method is performed by a system of a wireless communication network, for detecting neighboring UEs of a first UE that is wirelessly connected to a first base station. The method includes receiving power measurements performed on signals received at the first UE, which signals are sent from base stations, each power measurement being associated with an ID of the base station from which the signal was sent. The method further includes receiving power measurements of signals received at a second UE that is wirelessly connected to a second base station, each power measurement being associated with an ID of the base station from which the signal was sent. The method further includes determining a correlation between the received power measurements of the first and second UEs, and based on the determined correlation, determining whether the second UE is a neighbor to the first UE.