| CPC H04L 5/0096 (2013.01) [H04L 1/1621 (2013.01); H04L 5/0035 (2013.01); H04L 5/0055 (2013.01); H04W 84/005 (2013.01)] | 22 Claims |

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1. A first terminal of a radio communications network, the first terminal comprising:
at least one processor;
at least one memory with computer program code;
at least one communication module; and
at least one antenna;
wherein:
the computer program code is configured in such a way that, using the at least one processor, the at least one communication module, and the at least one antenna, the computer program code causes the first terminal to:
send first messages on a first radio resource to a group of further terminals situated within a radio reception distance from the first terminal;
receive at least one response, after sending the first messages, from at least one of the further terminals of the group, the at least one response being a negative receipt acknowledgment, including a resource indicator that uniquely identifies the first radio resource, and being formed based upon an effective transmission range of the first terminal, which is within the radio reception distance;
ascertain a resource change decision as a function of the at least one response; and
send second messages as a function of the resource change decision on a second radio resource to the group of further terminals, the second radio resource being different from the first radio resource.
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