A capacity station activation method performed by a coverage station of a wireless communication system, said wireless communication system comprising the coverage station and a plurality of capacity stations, wherein said coverage station is a base station that provides a basic network coverage and each capacity station of the plurality of capacity stations is a base station that performs a service upgrade or capacity enhancement and overlaps the coverage station in coverage, and wherein a first capacity station group S 0 includes a sub-set of said plurality of capacity stations, each of the capacity stations in the sub-set being in a dormant state, said method comprising: sending a first activation control information to a capacity station of the first capacity station group S 0, wherein the activation control information is used to enable the capacity station to send a first pilot signal to a user at a first transmit power and enable the user to measure the first pilot signal (step S101); receiving, from the user, a measurement result of the first pilot signal, and selecting a second capacity station group S 1 from the first capacity station group S 0 according to the received measurement result of the first pilot signal measurement (step S102); sending a second activation control information to the second capacity station group S 1, wherein the second activation control information is used to enable a capacity station in the second capacity station group S 1 to send a second pilot signal to the user at second transmit power and enable the user to measure the second pilot signal, wherein the second transmit power is lower than the first transmit power (step S103); receiving, from the user, a measurement result of the second pilot signal, calculating a load of each capacity station in the second capacity station group S 1 according to the received measurement result of the second pilot signal; and determining, according to the calculated load of each capacity station in the second capacity station group S 1, a capacity station from the second capacity station group S 1 that needs to be activated to meet a system requirement (step S104); and sending activation information to the capacity station that needs to be activated, activating the capacity station that needs to be activated and enabling it to work at the second transmit power after it is activated (step S105). sending a first activation control information to a capacity station of the first capacity station group S 0, wherein the activation control information is used to enable the capacity station to send a first pilot signal to a user at a first transmit power and enable the user to measure the first pilot signal (step S101); receiving, from the user, a measurement result of the first pilot signal, and selecting a second capacity station group S 1 from the first capacity station group S 0 according to the received measurement result of the first pilot signal measurement (step S102); sending a second activation control information to the second capacity station group S 1, wherein the second activation control information is used to enable a capacity station in the second capacity station group S 1 to send a second pilot signal to the user at second transmit power and enable the user to measure the second pilot signal, wherein the second transmit power is lower than the first transmit power (step S103); receiving, from the user, a measurement result of the second pilot signal, calculating a load of each capacity station in the second capacity station group S 1 according to the received measurement result of the second pilot signal; and determining, according to the calculated load of each capacity station in the second capacity station group S 1, a capacity station from the second capacity station group S 1 that needs to be activated to meet a system requirement (step S104); and sending activation information to the capacity station that needs to be activated, activating the capacity station that needs to be activated and enabling it to work at the second transmit power after it is activated (step S105).