Patent ID: 8358642

Claim:
A system comprising: a transceiver configured to transition, based on a first clock, from a power save mode to an active mode for a predetermined time period to receive a delivery traffic indication message (DTIM) beacon from an access point, wherein the DTIM beacon is transmitted, based on a second clock associated with the access point, from the access point in accordance with a DTIM beacon interval; a beacon sensing module configured to, based on a plurality of transitions of the transceiver from the power save mode to the active mode, determine a number of times that a DTIM beacon is not received by the transceiver during a corresponding predetermined time period due to the first clock not being synchronized to the second clock of the access point; and a synchronization module configured to determine, based on the number of times that a DTIM beacon is not received, a number of synchronization requests for the transceiver to transmit to the access point during a given DTIM beacon interval, receive information about the second clock of the access point in response to the transceiver transmitting each synchronization request to the access point during the given DTIM beacon interval, and synchronize, during the given DTIM beacon interval, the first clock to the second clock of the access point based on the information about the second clock received from the access point.