Patent ID: 8477679

Claim:
A resource allocation method for an amplify-and-forward relay network, the method comprising: obtaining channel information, wherein the channel information includes channel information between a base station (BS) and a relay station (RS) and channel information between the RS and each user equipment (UE); calculating, according to the channel information, resource use information of each UE on each sub-channel pairing; and obtaining, according to the resource use information, the number of resource elements REs allocated to each UE on each sub-channel pairing, wherein the obtained number of the REs enables a preset first function to obtain a maximum value; wherein the channel information is the signal-to-noise ratio and the resource use information is the number of bits; a formula for calculating, according to the channel information, resource use information of each UE on each sub-channel pairing is: b ij (m) =f ( R ij (m) ); wherein b ij (m) indicates the number of bits that may be carried by each RE of the UE indexed by m on a sub-channel pairing indexed by (i, j); f(*) indicates a mapping modulated according to adaptive codes; R ij (m) indicates a transmission rate of the UE indexed by m on the sub-channel pairing indexed by (i, j), and a formula for calculating R ij (m) as follows: R ij (m) =W b log(1+SNR (m) ij ); wherein W b is bandwidth of each RE, and a formula for calculating SNR ij (m) is as follows: S ⁢ ⁢ N ⁢ ⁢ R ij ( m ) = S ⁢ ⁢ N ⁢ ⁢ R i ( R ) ⁢ S ⁢ ⁢ N ⁢ ⁢ R j ( m ) S ⁢ ⁢ N ⁢ ⁢ R i ( R ) + S ⁢ ⁢ N ⁢ ⁢ R j ( m ) + 1 ; wherein SNR i (R) is the signal-to-noise ratio of a communication link between the BS and the RS on a sub-channel indexed by i; SNR j (m) is the signal-to-noise ratio of a communication link between the RS and the UE indexed by m on the sub-channel indexed by i .