This invention discloses HSDPA down-stream physical channel power distribution including the following steps: A, Nod B designs the largest emit power and dynamic regulation allowance, B, obtaining the transmitted HS-PDSCH power of last time, C, Node B selects users possibly transmitting data to it and distributes the total power of two channels of HS-SCCH and HS-PDSCH according to the provided largest emit power and the total power needed by users on HS-SCCH and HS-PDSCH channel, D Node B judges if there is power left, if so, step E is performed, otherwise the HSDPA downstream physical channel power distribution flow is ended, E, Node B increases the transmitted data volume selected on HS-PDSCH channel. |