Method for packet-switched data transmission between marine-side transceivers (1.1,..., 1.n) on a watercraft and land-side transceivers (2.1,..., 2.m) via air interfaces, comprising: - providing marine-side transceivers (1.1,..., 1.n) on a watercraft; - providing land-side transceivers (2.1,..., 2.m); - packet-switched transmission of data from the marine-side transceivers (1.1,..., 1.n) to the land-side transceivers (2.1,..., 2.m) in a first operating mode, in which - a first set of data communication connections formed in pairs via first air interfaces between the marine-side transceivers (1.1,..., 1.n) and the land-side transceivers (2.1,..., 2.m) is used for the packet-switched data transmission and - a first load distribution between the marine-side transceivers (1.1,..., 1.n) is applied on the transmitting side for data packets to be transmitted; - determining changed transmission conditions for the first set of data communication connections formed in pairs; and - as a reaction to determining the changed transmission conditions, packet-switched transmission of data from the marine-side transceivers (1.1,..., 1.n) to the land-side transceivers (2.1,..., 2.m) in a second operating mode, in which - a second set of data communication connections formed in pairs via second air interfaces between the marine-side transceivers (1.1,..., 1.n) and the land-side transceivers (2.1,..., 2.m) is used for the data transmission and - a second load distribution between the marine-side transceivers (1.1,..., 1.n) is used on the transmitting side for data packets to be transmitted; the second set and the first set of data communication connections formed in pairs being different from one another. - providing marine-side transceivers (1.1,..., 1.n) on a watercraft; - providing land-side transceivers (2.1,..., 2.m); - packet-switched transmission of data from the marine-side transceivers (1.1,..., 1.n) to the land-side transceivers (2.1,..., 2.m) in a first operating mode, in which - a first set of data communication connections formed in pairs via first air interfaces between the marine-side transceivers (1.1,..., 1.n) and the land-side transceivers (2.1,..., 2.m) is used for the packet-switched data transmission and - a first load distribution between the marine-side transceivers (1.1,..., 1.n) is applied on the transmitting side for data packets to be transmitted; - a first set of data communication connections formed in pairs via first air interfaces between the marine-side transceivers (1.1,..., 1.n) and the land-side transceivers (2.1,..., 2.m) is used for the packet-switched data transmission and - a first load distribution between the marine-side transceivers (1.1,..., 1.n) is applied on the transmitting side for data packets to be transmitted; - determining changed transmission conditions for the first set of data communication connections formed in pairs; and - as a reaction to determining the changed transmission conditions, packet-switched transmission of data from the marine-side transceivers (1.1,..., 1.n) to the land-side transceivers (2.1,..., 2.m) in a second operating mode, in which - a second set of data communication connections formed in pairs via second air interfaces between the marine-side transceivers (1.1,..., 1.n) and the land-side transceivers (2.1,..., 2.m) is used for the data transmission and - a second load distribution between the marine-side transceivers (1.1,..., 1.n) is used on the transmitting side for data packets to be transmitted; the second set and the first set of data communication connections formed in pairs being different from one another. - a second set of data communication connections formed in pairs via second air interfaces between the marine-side transceivers (1.1,..., 1.n) and the land-side transceivers (2.1,..., 2.m) is used for the data transmission and - a second load distribution between the marine-side transceivers (1.1,..., 1.n) is used on the transmitting side for data packets to be transmitted;