A method implemented by a node in a wireless communication system comprises obtaining (120) a result of a timing measurement performed on one or more first radio signals associated with one or more specific characteristics. The method also includes verifying (130) one or more second radio signals as associated with the one or more specific characteristics, by determining whether the result meets one or more conditions. In some embodiments, the one or more specific characteristics is an identity of a specific radio node or cell. Moreover, in one or more embodiments, the result of the timing measurement is used for verification in this way instead of or in addition to the result of a power-based measurement.