A radio base station, connected with a plurality of mobile stations (110, 120, 130, 140), wherein a first mobile station in the plurality of mobile stations forms at least one mobile station pair with other mobile station (120, 130, 140) in the plurality of mobile stations, in characterized that the radio base station comprising: a processing unit, configured to determine an initial value of a power factor of each mobile station pair according to state data of respective mobile stations in the mobile station pair, and determine an adjustment value of the power factor for the first mobile station according to state data of the first mobile station; and a transmitting unit, configured to transmit the initial value of the at least one mobile station pair and the adjustment value to the first mobile station, so as to make the first mobile station determine a transmitting power allocated to the first mobile station according to the initial value and the adjustment value, wherein the respective mobile stations (110, 120, 130, 140) in the mobile station pair use different space resources and/or power levels for transmission, the power factor includes a space power factor and a power-level power factor, the space power factor indicates a distribution ratio of transmitting powers among different space resources, the power-level power factor indicates a distribution ratio of transmitting powers among different power levels, the processing unit determines a current value of the power factor for the first mobile station by an iterative process according to an initial value of a specific mobile station pair in the at least one mobile station pair and state data of the first mobile station, wherein in each iteration, an iterative value of the power-level power factor is calculated according to a given space power factor and then an iterative value of the space power factor is calculated according to the calculated iterative value of the power-level power factor; and calculates the adjustment value according to the initial value of the power factor of the specific mobile station pair and the current value of the power factor. a processing unit, configured to determine an initial value of a power factor of each mobile station pair according to state data of respective mobile stations in the mobile station pair, and determine an adjustment value of the power factor for the first mobile station according to state data of the first mobile station; and a transmitting unit, configured to transmit the initial value of the at least one mobile station pair and the adjustment value to the first mobile station, so as to make the first mobile station determine a transmitting power allocated to the first mobile station according to the initial value and the adjustment value, wherein the respective mobile stations (110, 120, 130, 140) in the mobile station pair use different space resources and/or power levels for transmission, the power factor includes a space power factor and a power-level power factor, the space power factor indicates a distribution ratio of transmitting powers among different space resources, the power-level power factor indicates a distribution ratio of transmitting powers among different power levels, the processing unit determines a current value of the power factor for the first mobile station by an iterative process according to an initial value of a specific mobile station pair in the at least one mobile station pair and state data of the first mobile station, wherein in each iteration, an iterative value of the power-level power factor is calculated according to a given space power factor and then an iterative value of the space power factor is calculated according to the calculated iterative value of the power-level power factor; and calculates the adjustment value according to the initial value of the power factor of the specific mobile station pair and the current value of the power factor. the respective mobile stations (110, 120, 130, 140) in the mobile station pair use different space resources and/or power levels for transmission, the power factor includes a space power factor and a power-level power factor, the space power factor indicates a distribution ratio of transmitting powers among different space resources, the power-level power factor indicates a distribution ratio of transmitting powers among different power levels, the processing unit determines a current value of the power factor for the first mobile station by an iterative process according to an initial value of a specific mobile station pair in the at least one mobile station pair and state data of the first mobile station, wherein in each iteration, an iterative value of the power-level power factor is calculated according to a given space power factor and then an iterative value of the space power factor is calculated according to the calculated iterative value of the power-level power factor; and calculates the adjustment value according to the initial value of the power factor of the specific mobile station pair and the current value of the power factor.