Method for filling a WiMAX downlink frame by the base station of a WiMAX network

Method for filling a WiMAX downlink frame by the base station of a WiMAX network, wherein the downlink MAC Protocol Data Units (MPDUs) are fitted into the WiMAX downlink frame by means of a DL-MAP scheduler, which:

• allows the concatenation of downlink MPDUs from different connections in single bursts, the bursts having a rectangular shape in terms of the two dimensions—OFDMA (Orthogonal Frequency Division Multiple Access) symbols and subchannels—of a WiMAX downlink frame;
• considers the concatenation of downlink MPDUs from different connections in single bursts based on the available and/or the remaining free space in the WiMAX downlink frame, such that it simplifies filling the WiMAX downlink frame minimizing the amount of wasted radio resources;
• and
• uses an algorithm that considers the sizes of all MPDUs belonging to the same Modulation and Coding Scheme (MCS) and groups them in subsets, such that the aggregate size plus possibly a certain admissible padding of each candidate subset matches the size of the part of the available/remaining space shape under consideration.