Patent ID: 7969927

Claim:
a resource allocation method for an internal terminal of a Mobile Relay Station (MRS) in an environment where a cellular system and an MRS based system coexist, the method comprising: determining a minimum transmit power value of the MRS, which enables the internal terminal to have a receive Signal to Interference and Noise Ratio (SINR) greater than a first threshold; determining a transmit power value of the MRS by taking into account the determined minimum transmit power value; determining a transmit power value of the MRS per cellular terminal, which is transmittable at maximum while exerting interference less than a second threshold on a corresponding cellular terminal; searching one or more cellular terminals having the maximum transmittable transmit power value determined per cellular terminal greater than the transmit power value determined by taking into account the minimum transmit power value; and borrowing and allocating a resource allocated to the searched cellular terminal to the internal terminal, wherein the maximum transmittable transmit power value of the MRS per cellular terminal is determined to meet a condition of the following equation: P t , R - M ⁢ ⁢ 1 ≤ min ⁢ { P t , M ⁢ ⁢ 1 S ⁢ ⁢ N ⁢ ⁢ R r , M ⁢ ⁢ 1 ⁢ R ⁢ Q , P t , R , max } where P t,R-M1 denotes a maximum transmittable transmit power value of the MRS per cellular terminal, SNR r,M1R denotes an uplink receive Signal to Noise Ratio (SNR) of the corresponding cellular terminal, P t,M1 denotes a transmit power of the corresponding cellular terminal, Q denotes an interference allowance of the corresponding cellular terminal, and P t,R,max denotes the maximum transmittable transmit power value of the MRS.