A method for transmitting messages to a first user equipment, UE, and a second UE, the method being performed by a network node and comprising: transmitting first superimposed signal comprising a first message for the first UE and a second message for the second UE; and determining that the second UE was not able to successfully decode the second message, the method further comprises determining that the first UE was not able to successfully decode either the first message or the second message; in response to determining that the first UE was not able to successfully decode either the first message or second message and that the second UE was not able to successfully decode the second message, deciding to retransmit the second message but not the first message; and retransmitting the second message by transmitting a second superimposed signal comprising the second message for the second UE and a third message for the first UE but not including the first message, wherein the third message is different than the first message, wherein the method is characterised by determining that the first UE was not able to successfully decode either the first message or the second message comprises receiving a first negative acknowledgment, NACK, corresponding to the first message and a second NACK corresponding to the second message, the first NACK indicating that the first UE was not able to successfully decode the first message, and the second NACK indicating that the first UE was not able to successfully decode the second message. transmitting first superimposed signal comprising a first message for the first UE and a second message for the second UE; and determining that the second UE was not able to successfully decode the second message, the method further comprises determining that the first UE was not able to successfully decode either the first message or the second message; in response to determining that the first UE was not able to successfully decode either the first message or second message and that the second UE was not able to successfully decode the second message, deciding to retransmit the second message but not the first message; and retransmitting the second message by transmitting a second superimposed signal comprising the second message for the second UE and a third message for the first UE but not including the first message, wherein the third message is different than the first message, wherein the method is characterised by determining that the first UE was not able to successfully decode either the first message or the second message comprises receiving a first negative acknowledgment, NACK, corresponding to the first message and a second NACK corresponding to the second message, the first NACK indicating that the first UE was not able to successfully decode the first message, and the second NACK indicating that the first UE was not able to successfully decode the second message. determining that the first UE was not able to successfully decode either the first message or the second message; in response to determining that the first UE was not able to successfully decode either the first message or second message and that the second UE was not able to successfully decode the second message, deciding to retransmit the second message but not the first message; and retransmitting the second message by transmitting a second superimposed signal comprising the second message for the second UE and a third message for the first UE but not including the first message, wherein the third message is different than the first message, wherein the method is characterised by determining that the first UE was not able to successfully decode either the first message or the second message comprises receiving a first negative acknowledgment, NACK, corresponding to the first message and a second NACK corresponding to the second message, the first NACK indicating that the first UE was not able to successfully decode the first message, and the second NACK indicating that the first UE was not able to successfully decode the second message.