1. A method of cell searching implemented by a mobile terminal, said method comprising: selecting between a normal cell search and an extended cell search based on control information received from a base station; if the normal cell search is selected, performing the normal cell search using a first measurement and reporting threshold; if the extended cell search is selected, performing the extended cell search using a second measurement and reporting threshold lower than the first measurement and reporting threshold, wherein the first measurement and reporting threshold corresponds to a first Es/Iot ratio between received power per resource element (Es) and received power spectral density of noise and interference per resource element (Iot), and wherein the second measurement and reporting threshold corresponds to a second Es/Iot ratio.