User equipment, base station and cell discovery method

An embodiment of the present invention relates to the field of communications. Disclosed are a user equipment, base station and cell discovery method, realizing accurate cell discovery and measurement when small base stations are densely deployed. The method comprises: a user equipment (UE) receives secondary information, the secondary information comprising the resource information of a second reference signal of a first neighboring cell, the first neighboring cell being any neighboring cell of a serving base station of the UE; the UE detects the first reference signal of the first neighboring cell according to the secondary information, so that the UE synchronizes with the first neighboring cell; the UE detects the first reference signal or a second reference signal or both the first and second signals of the first neighboring cell according to the secondary information to obtain the cell identity (ID) or virtual ID of the first neighboring cell. The present invention is used for discovering cells.