Patent ID: 8503596
Filing Date: 2013-08-06
Classification: H04J,H04W

Abstract:
1. A method comprising: generating a local clock within a wireless module; counting a local clock count of the local clock during a common timing reference period that is common to the wireless module and a host and is maintained wirelessly between the wireless module and the host over a wireless link; receiving, from the host over the wireless link, a host clock count of a host clock during the common timing reference period; and adjusting the local clock based upon a comparison of the local clock count with the host clock count, wherein the common timing reference period is maintained wirelessly by: transmitting, from the host to the wireless module over the wireless link, a first control signal at a first predetermined interval; transmitting, from the wireless module to the host over the wireless link, a second control signal at a second predetermined interval; determining a difference in time between the transmitting of the first and second control signals; and adjusting the first predetermined interval or the second predetermined interval to bring the first and second predetermined intervals within a predetermined time difference tolerance.