Patent ID: 8493907

Claim:
A method comprising: receiving a plurality of packets transmitted within a first service period allocated for transferring data from a first device to a second device in a network, wherein other devices are aware of the allocated first service period so as not to interfere with the first service period and wherein the second device is aware that the first device is a source of the data being transmitted during the first service period; estimating coarse frequency offset estimation and fine frequency offset estimation from preambles of a first packet of the plurality of packets transmitted from the first device during the first service period; tracking and estimating residual frequency offset for data components of the first packet; combining the residual frequency offset for each data component of the first packet with the estimated coarse and fine frequency offsets to obtain a total frequency offset for each data component of the first packet; saving a final total frequency offset at end of the first packet; utilizing the saved final total frequency offset for the first packet as an initial value for determining frequency offset estimation in a second packet in the plurality of packets within the first service period; tracking and estimating residual frequency offset for data components of the second packet; and combining the residual frequency offset for each data component of the second packet with the saved final total frequency offset for the first packet to obtain a respective total frequency offset for each data component of the second packet.