Overlaid on a cellular network device to device communication message acknowledgment feedback system and method

Example embodiments provide a linear species participating mobile communications user equipment group connected ( "DMC") operating system, a wireless communication link in a communication system controllers. The communication controller for said set of subframes DMC link assignment to the UE group, the set of subframes assigned signaled to the UE group, and the length of the sliding window is signaled to the said UE group. In an embodiment, the length of the sliding window in accordance with the polymerization ACK communication link over the DMC / NACK feedback, the ACK is determined independently of the communication link on the DMC / NACK feedback in communication with said controller and cellular transmission between said UE group ACK / NACK feedback. In an embodiment, the length of the sliding window for the number of subframes.