Abstract: There are provided for scheduling a plurality Framing Slots in one or more Multi-Frames in a synchronized hierarchical Tree Mesh network, comprising: one or more Clusters, each Cluster comprises: a Single Root Access Point (AP) used as a master of the Cluster; a plurality of Relay Nodes, one or more Station Nodes (STAs), wherein the one or more Multi-Frames comprise said plurality of Framing Slots, wherein each Framing Slot comprises downlink (DL) and uplink (UL) transmissions, the method comprising the steps of: dividing said one or more Clusters to at least two Groups of Relay Nodes; allocating, respectively, Framing Slots in said Multi-Frame per each Group of Relay Nodes of said at least two Groups of Relay Nodes, so each Group of Relay Nodes is respectively related to one or more allocated Framing Slots within the Multi-Frame.

Abstract: There are provided methods and systems for scheduling downlink (DL) and uplink (UL) transmissions in one or more Point-to-Multipoint (PTMP) IEEE 802.11 orthogonal frequency division multiple access (OFDMA) based wireless communication networks, each network comprising one or more IEEE 802.11 OFDMA based Access Points (APs) wherein each AP of said one or more APs comprises associate one or more IEEE 802.11 OFDMA stations (STAs), the method comprising the steps of: synchronizing the one or more STAs within each network using one or more synchronization signals transmitted between the one or more APs and the one or more STAs; allocating one or more Framing Slots, wherein each Framing Slot having a fixed time duration; dividing each Framing Slot of said one or more Framing Slots into DL burst transmission and UL burst transmission periods wherein the DL burst transmission periods comprise one or more DL Data Units Bursts and continuously scheduling by said one or more IEEE 802.