Power control method, activation management method and user terminal as well as base station

Embodiments of the present invention discloses a power control method, comprising: UE configuration information, the configuration information includes: at least one base station Scell ​​configuration parameters configured for the UE; the UE according to the configuration information in the Scell ​​configuration parameters, the initial power adjustment value of the Scell; UE according to the initial power adjustment value of the Scell ​​set control transmit power on the Scell. Accordingly, embodiments of the present invention also discloses a method for managing the activation, the UE and a base station. According to the present invention, the UE transmit power on the Scell ​​controlled accurately to ensure the accuracy of data transmission.