A method performed in a base station for communicating using a wireless communication network, comprising: receiving a channel quality indicator "CQI" from a first UE, the first UE being served by a base station (102, 104), and the CQI characterizing a channel quality between the first UE (110, 124) and the base station (102, 104) when the base station (102, 104) transmits at a first power transmission mode; determining a first modulation and coding scheme "MCS" when the base station (102, 104) transmits at a second power transmission mode based on the CQI; and when a spectrum efficiency of the first MCS is equal to or higher than a spectrum efficiency of a pre-determined MCS performing the steps of: allocating a first set of resources within a first resource block "RB" to the first UE; and allocating the first set of resources within the first RB to a second UE (120, 122), the second UE (120, 122) being served by a relay node "RN" (112, 114, 116, 118), the RN being in communication with the base station (102, 104) communicating with the first UE using the second power transmission mode; whereas if the spectrum efficiency of the first MCS is lower than the spectrum efficiency of the pre-determined MCS, performing the steps of: allocating a first set of resources within a first set of RBs to the first UE; and allocating a second set of resources within the first set of RBs to a second UE (120, 122), the second set of resources being distinct from the first set of resources, the second UE (120, 122) being served by a relay node "RN", the RN being in communication with the base station (102, 104); wherein the first power transmission mode is of an higher power transmission than the second power transmission mode. receiving a channel quality indicator "CQI" from a first UE, the first UE being served by a base station (102, 104), and the CQI characterizing a channel quality between the first UE (110, 124) and the base station (102, 104) when the base station (102, 104) transmits at a first power transmission mode; determining a first modulation and coding scheme "MCS" when the base station (102, 104) transmits at a second power transmission mode based on the CQI; and when a spectrum efficiency of the first MCS is equal to or higher than a spectrum efficiency of a pre-determined MCS performing the steps of: allocating a first set of resources within a first resource block "RB" to the first UE; and allocating the first set of resources within the first RB to a second UE (120, 122), the second UE (120, 122) being served by a relay node "RN" (112, 114, 116, 118), the RN being in communication with the base station (102, 104) communicating with the first UE using the second power transmission mode; allocating a first set of resources within a first resource block "RB" to the first UE; and allocating the first set of resources within the first RB to a second UE (120, 122), the second UE (120, 122) being served by a relay node "RN" (112, 114, 116, 118), the RN being in communication with the base station (102, 104) allocating the first set of resources within the first RB to a second UE (120, 122), the second UE (120, 122) being served by a relay node "RN" (112, 114, 116, 118), the RN being in communication with the base station (102, 104) communicating with the first UE using the second power transmission mode; allocating a first set of resources within a first set of RBs to the first UE; and allocating a second set of resources within the first set of RBs to a second UE (120, 122), the second set of resources being distinct from the first set of resources, the second UE (120, 122) being served by a relay node "RN", the RN being in communication with the base station (102, 104);