At least one example embodiment discloses a method for allocating downlink transmissions to a plurality of user equipments (UEs) from a base station. The method includes allocating downlink transmission air-time of the base station to a plurality of groups, associating each of the plurality of UEs to the plurality of groups, a throughput of each associated UE in a same group being affected by the remaining UEs in the same group and determining a resource sharing mode associated with each of the plurality of groups, the resource sharing mode being one of a first mode and a second mode, the base station allocating the same throughput to each associated UE in the associated group in the first mode and the base station allocating the same transmission time to each associated UE in the associated group in the second mode.