Abstract: A method, and a user equipment (UE) for power saving through optimized early measurement of frequencies for secondary cell setup in cellular network are provided. The UE initiates a service with a base station associated with a primary cell supporting the early measurement of the frequencies for the secondary cell (SCell) setup. The UE determines whether the service belongs to one of a first service set, and a second service set. The early measurement of the frequencies for the S Cell setup is temporarily terminated, and/or the transmission of an early measurement report comprising the one or more frequencies for the SCell setup to the base station is temporarily terminated. Alternatively, the UE performs the early measurement of the frequencies for the SCell setup and transmits the early measurement report to the base station when the service belongs to the second service set.