Medium access dynamic congestion control mechanism for wireless data

In a wireless communications system, a base station including a medium access dynamic control mechanism, comprising:

• a data link layer and a medium access control layer, said data link layer and said medium access control layer connected to each other by data and control paths, said data path operable to exchange frames between said data link layer and said medium access control layer, said control path operable to exchange control messages between said data link layer and said medium access control layer;
• said data link layer including a queue for storing frames received from said medium access control layer, said data link layer having a retransmission timer;
• said medium access control layer including a queue for storing frames received from said data link layer;
• whereby said data link layer is adapted to pass new data frames from a higher layer relative to said data link layer into said data link layer queue and to suspend said retransmission timer upon a congestion message received from said medium access control layer, said congestion message being responsive to a level of stored frames in said medium access control queue.