Patent ID: 8130795

Claim:
A communication system, comprising: a first device and a second device in a network that are configured to communicate with each other via wireless communication through a sequence of time slots in frames; wherein the first device transmits, via the wireless communication, a first sequence of time slots in frames to the second device, wherein a first time slot of the first sequence includes a time stain that the first device generates while transmitting in the first time slot based on a clock signal in the first device; wherein the first device receives, via the wireless communication, a second sequence of time slots in frames from the second device, wherein a second time slot of the second sequence includes a time stamp that the second device generates while transmitting in the second time slot based on a clock signal in the second device; and wherein the time slots are synchronized across the first and second devices using distributed mutual synchronization, in which the first device determines a stable clock signal about a common frequency for the first and second devices based on a difference between the second time stamp and a time value corresponding to a clock signal in the first device from the time the second time slot is received.