Patent ID: 8909281

Claim:
A method for controlling an uplink transmitting power in a system in which an uplink frequency band is divided into a plurality of frequency partitions, the method comprising: a base station determining respective power control parameters of each frequency partition, wherein each frequency partition comprises a plurality of physical sub-carriers; and the base station transmitting the power control parameters of all or part of the frequency partitions to a terminal, so that the terminal determines a transmitting power (P SC ) on a sub-carrier included in a corresponding frequency partition according to the power control parameters; wherein the power control parameters comprise a compensation factor (α), and before transmitting the power control parameters to the terminal, the method further comprises: for each frequency partition, determining the compensation factor of the corresponding frequency partition of a present cell according to an expected uplink Interference over Thermal Noise Ration (IoT) of adjacent cells in the frequency partition; or the power control parameters comprise a noise rise target (NRT), and before transmitting the power control parameters to the terminal, the method further comprises: for each frequency partition, determining the noise rise target of the corresponding frequency partition of a present cell according to an expected IoT of adjacent cells in the frequency partition.