Patent ID: 8755403

Claim:
An access point (AP), comprising: a receiver that receives data packets during an exhaustive polling phase or a selective polling phase, in accordance to Block Acknowledgement (BlockAck) set up information; a transmitter that transmits a BlockAck packet comprising the BlockAck set up information and a bit map indicating correctly received ones of the data packets during the exhaustive polling phase or the selective polling phase; and an optimization unit that updates the BlockAck setup information; wherein the BlockAck setup information comprises a size of the data packets and a number of the data packets; wherein the optimization unit updates the BlockAck setup information by updating the size of the data packets and the number of the data packets for receipt for a subsequent exhaustive polling phase or a subsequent selective polling phase during a Carrier Sense Multiple Access (CSMA) phase; wherein the optimization unit updates the size and the number based on a bit error rate, a probability of not receiving a packet for each node, and a physical layer probability of error for each node.