Disclosed is a method performed by a system of network nodes in a wireless communication network, for finding neighboring user equipments, UEs, with which a first UE (121) may be able to communicate directly. The system of network nodes includes a first base station, BS, (111), and the first UE is wirelessly connected to the first BS. The method comprises receiving, from a plurality of UEs (122, 123, 124, 125) wirelessly connected to the first BS (111) and from the first UE (121), power measurements performed on signals received from neighboring BSs (112, 113, 114, 115). The method further comprises determining (204) correlation values between the power measurements received from the first UE and the power measurements received from individual of the plurality of UEs by comparing a level of the power measurements of the first UE and a level of the power measurements of individual of the plurality of UEs, which power measurements are performed on signals received from the same neighboring BS, and, based on the determined correlation values, determining neighboring UEs for the first UE, out of the plurality of UEs, and sending identities, IDs, of the determined neighboring UEs to the first UE.