Patent ID: 8909304

Claim:
A quality-of-service enhanced access point (QAP) comprising: a signaling module configured to receive call signaling information and to transmit a timing offset to a quality-of-service enhanced station (QSTA), wherein the call signaling information includes at least one of a maximum service interval, a minimum service interval, and a mean data rate; a call offset scheduler module configured to determine the timing offset based on the call signaling information and to selectively change the timing offset associated with the QSTA based on a packet error rate (PER); a buffer configured to buffer data addressed to the QSTA; and a wireless local area network (WLAN) driver module configured to receive polling messages aligned with the timing offset from the QSTA, and in response to receiving the polling messages, transmit at least a portion of the buffered data to the QSTA, wherein the timing offset indicates to the QSTA when to wake up and transmit one of the polling messages to the QAP during a predetermined period without executing a collision avoidance protocol.