The method and apparatus within the cluster device to device retransmission for

D2D A method for retransmitting cluster comprising: a first cluster of the retransmission mode and parameter validation apparatus calculates second retransmission mode, ensure that the device is correctly decoded the data from a network node; to the network node reporting parameter; and in response to a predetermined standard in accordance with, based on parameter selection between the first mode and the second retransmission the retransmission mode from the network node at least in part at least one non-acknowledgment determining whether the retransmission device of the cluster data, at least one non-acknowledgment of the data from a network node apparatus is not correctly decoded.