A participant (106_1) of a communication system , wherein the participant (106_1) is configured to transmit data asynchronously to a base station of the communication system , wherein the participant (106_1) is configured to receive a synchronization data packet of a multicast data transfer of the base station of the communication system , wherein the synchronization data packet is transferred in a frequency range of the frequency band of the communication system that is known to the participant (106_1), wherein the frequency range known to the participant at most corresponds to a reception bandwidth of a receiver of the participant, wherein the frequency band used by the communication system comprises a bandwidth that is larger than the reception bandwidth of the receiver of the participant at least by the factor 5, wherein the participant (106_1) is configured to receive, on the basis of the synchronization data packet , a payload data packet of the multicast data transfer that is referenced in time and/or frequency to the synchronization data packet , wherein the synchronization data packet of the multicast data transfer is transferred divided onto a plurality of partial synchronization data packets (126_1-126_k), wherein the plurality of partial synchronization data packets (126_1-126_k) each comprise a part of the synchronization data packet , and wherein the plurality of partial synchronization data packets (126_1-126_k) are transferred distributed in time and frequency according to a time and frequency hopping pattern known to the participant (106_1), wherein the participant (106_1) is configured to receive the plurality of partial synchronization data packets (126_1-126_k) on the basis of the time and frequency hopping pattern known to the participant (106_1), wherein the plurality of partial synchronization data packets (126_1-126_k) are transferred within the frequency range known to the participant. wherein the participant (106_1) is configured to transmit data asynchronously to a base station of the communication system , wherein the participant (106_1) is configured to receive a synchronization data packet of a multicast data transfer of the base station of the communication system , wherein the synchronization data packet is transferred in a frequency range of the frequency band of the communication system that is known to the participant (106_1), wherein the frequency range known to the participant at most corresponds to a reception bandwidth of a receiver of the participant, wherein the frequency band used by the communication system comprises a bandwidth that is larger than the reception bandwidth of the receiver of the participant at least by the factor 5, wherein the participant (106_1) is configured to receive, on the basis of the synchronization data packet , a payload data packet of the multicast data transfer that is referenced in time and/or frequency to the synchronization data packet , wherein the synchronization data packet of the multicast data transfer is transferred divided onto a plurality of partial synchronization data packets (126_1-126_k), wherein the plurality of partial synchronization data packets (126_1-126_k) each comprise a part of the synchronization data packet , and wherein the plurality of partial synchronization data packets (126_1-126_k) are transferred distributed in time and frequency according to a time and frequency hopping pattern known to the participant (106_1), wherein the participant (106_1) is configured to receive the plurality of partial synchronization data packets (126_1-126_k) on the basis of the time and frequency hopping pattern known to the participant (106_1), wherein the plurality of partial synchronization data packets (126_1-126_k) are transferred within the frequency range known to the participant. <EOS>