Patent ID: 8483742

Claim:
A method for determining an uplink power in a user equipment in a wireless communication system, the method comprising: receiving a target Signal-to-Interference plus Noise Ratio (SINR) parameter and an uplink noise and interference level from a base station; and determining the uplink power for an uplink channel according to a following equation: P (dBm) =L+SINR Target +NI+ Offset, where P denotes the uplink power, L denotes an estimated average downlink propagation loss, SINR Target denotes a target SINR determined using the target SINR parameter, NI denotes an estimated average power level of noise and interference at the base station, calculated using the uplink noise and interference level, and Offset is a correction term for power offset specific to the user equipment, wherein Offset is controlled by the base station, wherein SINR Target is determined using a following equation when the uplink channel is a data channel: SINR Target = 10 ⁢ ⁢ log ⁢ ⁢ 10 ⁢ ( max ⁡ ( 10 ( SINR MIN ⁡ ( dB ) 10 ) , γ loT × SIR DL - α ) ) - β × 10 ⁢ ⁢ log ⁢ ⁢ 10 ⁢ ( TNS ) , where SINR MIN denotes an SINR requirement for a minimum rate expected by the base station, γ IoT denotes a fairness and Interference plus noise over Thermal noise (IoT) control factor received from the base station, SIR DL denotes a ratio of a downlink signal to interference power, measured by the use equipment, α denotes a factor based on the number of reception antennas of the base station, and β denotes a stream factor indicating whether a Total Number of Streams (TNS) in a resource unit indicated by uplink MAP information is applied, and wherein SINR Target is determined based on a target SINR value for a control channel, received from the base station, when the uplink channel is the control channel.