Currently, the Wi-Fi Alliance is proposing that packets be aggregated into larger groups of packets before being sent in tunnel mode to a remote station (STA). For stations that support a VHT (Very High Throughput) mode, the number of aggregated packets may be very large. The aggregation is a key part of reaching a stated goal of 1 gigabit per second for wireless communications.
The selection of the number of packets to be aggregated greatly affects the transmission rate, the amount of overhead, and the airtime required to transmit the packet. In addition, to aggregate packets, the system must wait for all of the packets that are to be aggregated to arrive before they can be aggregated. In addition, the system must wait for enough packets to arrive to satisfy the conditions for aggregation. This introduces delays that impact applications or user experiences.