Uplink power control in an adaptive TDD communication system

摘要

To provide power control for transmissions from user equipment (UE) in adaptively configured time division duplex (TDD) communication systems.SOLUTION: UE detects a physical DL control channel (PDCCH) conveying a downlink control information (DCI) format scheduling a physical UL shared channel (PUSCH) in a UL transmission time interval (UL TTI) in operation 910, and the UE examines a value of a 1-bit additional power control configuration (PCC) field included in the DCI format in operation 920. If this value is '0', the UE transmits a PUSCH with a transmission power determined according to a first set of values for open-loop power control (OLPC) or closed-loop power control (CLPC) parameters in operation 930. If this value is '1', the UE transmits a PUSCH with a transmission power determined according to a second set of values for OLPC or CLPC parameters in operation 940.SELECTED DRAWING: Figure 9