Patent ID: 8018885

Claim:
A device comprising: logic, implemented at least partially in hardware, the logic to: enter a power savings mode; transmit a first synchronization packet to a remote device within a first transmission time slot in a first power savings cycle, the first synchronization packet including one of a first code based on an address of the device or a second code based on an address of the remote device, where the first code is to indicate that the device has data to be sent to the remote device and the second code is to indicate that the device does not have data to be sent to the remote device; cause the device to sleep after transmitting the first synchronization packet to save energy; wake the device at a first receive time slot in the first power savings cycle; receive, at the device, a reply synchronization packet, the reply synchronization packet including one of the first code, or the second code, where the first code is to indicate that the remote device has data to be sent to the device and the second code is to indicate that the remote device does not have data to be sent to the device; and cause the device to sleep until a start of a second power savings cycle that follows the first power savings cycle to save energy.