Patent ID: 8675636

Claim:
A node in a wireless system, the wireless system using transmit/receive slots for a communication among the nodes in the wireless system, the node comprising: a reception block, the reception block being configured to receive from a transmitting node in the wireless system a synchronization signal, and to derive from the synchronization signal a time offset and a frequency offset, between a first clock generator in the node and a second clock generator in the transmitting node; a slot synchronization block including the first clock generator, the slot synchronization block being configured to update the first clock generator based on the derived time offset and the derived frequency offset, and a transmission block configured to transmit data, wherein the slot synchronization block is configured to set a slot start of a slot based on the derived time offset and to set a slot start of a subsequent slot based on the derived frequency offset, wherein the first clock generator includes a digital oscillator, and wherein the slot synchronization block is configured to modify the phase of the clock signal of the digital oscillator for updating the first clock generator, and wherein the slot synchronization block is configured to modify the phase of the clock signal of the digital oscillator by delaying incrementing the phase in accordance with a time offset to provide for the time synchronization, and to change a slope of the phase in accordance with the frequency offset to provide for the frequency synchronization.