Patent ID: 8570882

Claim:
A method for power control in High Speed Downlink Packet Access, comprising: determining by a data scheduling unit whether environment of a channel for a User Equipment is favorable, and if the environment of the channel is favorable, decreasing transmission power of a High Speed Downlink Shared Channel, wherein in the case that a Transmit Power Control command word sent by the User Equipment through an uplink Dedicated Physical Channel is detected by the Base Station, and the Transmit Power Control command word always instructs the Base Station to decrease the transmission power within a statistic period, the environment of the channel for the User Equipment is determined as favorable; otherwise, monitoring by the data scheduling unit a Channel Quality Indicator returned by the User Equipment, increasing the transmission power of the High Speed Downlink Shared Channel if the Channel Quality Indicator is lower than the highest rate level supported by the User Equipment or data for retransmission is sent, and maintaining the transmission power of the High Speed Downlink Shared Channel unchanged if the Channel Quality Indicator is equal to the highest rate level supported by the User Equipment and new data is sent.