Method for controlling power of forwarding link in use for circuit switching in TD-SCDMA

The method includes steps: comparing sum of transmission power of all channels in time slot of forwarding link with maximal transmission power in base station; if the result is larger, next, seeking out the user with maximal transmission power in users in current time slots; then, reducing power with one step length, and repeating the procedure till the said sum is less or equal to maximal transmission power in base station. Then, the method carries out following steps further: comparing the difference between transmission powers of any two channels in current time slot with allowable dynamicrange; if the result is larger, seeking out the user with minimal transmission power in users in current time slots; then increasing power with one step length; and repeating the procedure till the said difference is smaller than or equal to allowable dynamic range. Comprehensive considering power control commands of each UE in a time slot, the invention meets power requirement for each UE.