Patent ID: 7145889

Claim:
A method of facilitating retransmission of frames in a wireless communication environment comprising: a) receiving a plurality of frames from a terminal over a wireless medium; b) determining at least one frame was lost or corrupted during transmission over the wireless medium from the terminal; c) determining if additional communication resources are required for retransmission of the at least one packet, and if the additional communication resources are required: i) obtaining a grant of the additional communication resources for retransmission of the at least one frame over the wireless medium; and ii) transmitting a negative acknowledgement indicating the at least one frame was lost or corrupted and providing the grant of the additional communication resources to the mobile terminal over the wireless medium, such that the additional communication resources for retransmission of lost or corrupted frames are provided to the mobile terminal with the negative acknowledgement to trigger retransmission; and d) if the additional communication resources are not required: i) transmitting the negative acknowledgement indicating a frame was lost or corrupted without providing the grant of the additional communication resources to the mobile terminal in association with the negative acknowledgement.