Patent ID: 8565210

Claim:
A method for transmitting a signal from a mobile station (MS) in a wireless communication system using a Fractional Frequency Reuse (FFR) scheme, the method comprising: receiving first information including a frequency partition allocated to the MS; receiving second information including a control parameter for controlling an inter-cell interference level for the allocated frequency partition; receiving at least a minimum required signal to interference plus noise ratio (SINR), a factor value according to a number of receiving antennas, or a value indicating a media access control (MAC) power control mode; determining a target SINR using the second information and the following equation, SINR Target = 10 ⁢ log ⁢ ⁢ 10 ⁢ ( max ⁡ ( 10 ⋀ ⁢ ( SINR MIN ⁡ ( dB ) 10 ) , γ IoT × SINR DL - α ) ) - β × 10 ⁢ log ⁢ ⁢ 10 ⁢ ( TNS ) where: SINR MIN is the minimum required SINR; γIoT is the control parameter for controlling the inter-cell interference level for the allocated frequency partition; SIR DL is a downlink signal to interference power ratio; α is the factor value according to the number of receiving antennas; β is the value indicating the MAC power control mode; and TNS is a total number of streams in a Logical Resource Unit (LRU) indicated by a UL A-MAP information element (IE); determining an uplink transmission power level for the allocated frequency partition using the determined target SINR; and transmitting a signal using the determined uplink transmission power level.