A communication device , the communication device comprising: - a wireless interface (101-1) configured to communicate with a cellular network in a first frequency band and to communicate with the cellular network in a second frequency band , the second frequency band being at least partly different from the first frequency band , - at least one processor (101-2) configured to send a data packet to the cellular network via the wireless interface (101-1) in the first frequency band , wherein the at least one processor (101-2) is further configured to check if receipt of the data packet is acknowledged by the cellular network , wherein the at least one processor (101-2) is further configured to selectively send the data packet to the cellular network via the wireless interface (101-1) in the second frequency band depending on said checking, wherein the at least one processor (101-2) is configured to send the data packet to the cellular network via the wireless interface (101-1) in the first frequency band employing a first automatic repeat request scheme , characterized in that the at least one processor (101-2) is further configured to selectively send the data packet to the cellular network via the wireless interface (101-1) in the second frequency band employing a second automatic repeat request scheme , and that the first and second automatic repeat request schemes differ with respect to a respective number of retransmission attempts. the communication device comprising: - a wireless interface (101-1) configured to communicate with a cellular network in a first frequency band and to communicate with the cellular network in a second frequency band , the second frequency band being at least partly different from the first frequency band , - at least one processor (101-2) configured to send a data packet to the cellular network via the wireless interface (101-1) in the first frequency band , - a wireless interface (101-1) configured to communicate with a cellular network in a first frequency band and to communicate with the cellular network in a second frequency band , the second frequency band being at least partly different from the first frequency band , - at least one processor (101-2) configured to send a data packet to the cellular network via the wireless interface (101-1) in the first frequency band , wherein the at least one processor (101-2) is further configured to check if receipt of the data packet is acknowledged by the cellular network , wherein the at least one processor (101-2) is further configured to selectively send the data packet to the cellular network via the wireless interface (101-1) in the second frequency band depending on said checking, wherein the at least one processor (101-2) is configured to send the data packet to the cellular network via the wireless interface (101-1) in the first frequency band employing a first automatic repeat request scheme , characterized in that the at least one processor (101-2) is further configured to selectively send the data packet to the cellular network via the wireless interface (101-1) in the second frequency band employing a second automatic repeat request scheme , and that the first and second automatic repeat request schemes differ with respect to a respective number of retransmission attempts. <EOS>