Patent ID: 8423094

Claim:
A femtocell comprising: a memory configured for storing the identification of at least one registered user, a plurality of access probability values in different time periods, and a comparison table of power saving rates and probability thresholds corresponding to the power saving rates, wherein each access probability value represents a probability that the femtocell is accessed by a registered user in one of the time periods, each power saving rate is a proportion of the time periods whose access probability values are less than or equal to a predetermining probability threshold and all time periods; a transmitter; a receiver; and a controller connected to the memory, the transmitter, and the receiver, the controller comprising: a setting module configured for selecting the predetermining probability threshold from the comparison table according to an inputted power saving rate; a time module configured for getting a current time and determining a current time period corresponding to the current time; a user identifying module configured for determining whether or not the user accessing to the femtocell through the receiver is a registered user stored in the memory; a switching module configured for sending a switch-off signal to the transmitter upon the condition that the access probability value at the current time period is less than the predetermined probability threshold, or sending a first start signal to the transmitter upon the condition that the access probability value at the current time period is greater than or equal to the predetermined probability threshold; and a statistic module configured for calculating the access probability value at the current time period according to the identifying result of the user identifying module and the current time period determined by the time module.