The invention discloses a method of determining channel loss, a base station and user equipment, the method comprises the following steps: receiving first information which comes from first UE and iscorresponding to a range of a channel loss value of the first UE; and according to the first information, determining the range of the channel loss value of the first UE. Through the method, the basestation and the UE provided by the invention, the base station can learn the range of the channel loss value of the first UE and thereby performs data transmission according to the range, thus, communication quality between the base station and the first UE is improved.