Reference is now made to FIG. 5 illustrating methods for channel reconfiguration in a communications network 100 as performed by the network node 200 according to further embodiments. It is assumed that steps S102 and S104 are performed as described above with reference to FIG. 3 and a thus repeated description thereof is therefore omitted.

In some aspects the network node 200 needs permission from the SAS to use the new channel. The network node 200 might therefore need to request access from the SAS. Hence, according to an embodiment the network node 200 is configured to perform step S106:

S106: The network node 200 requests, from the SAS, access to use the new channel.

If a grant of the access is not received from the SAS the network node 200 could select another new channel, wherein this another new channel is selected in the same way as the originally selected new channel, but with the condition, or side constraint, that this another new channel must be different from the originally selected new channel.

Further, the network node 200 might need to inform the wireless devices 300a, 300b of the new channel so that the wireless devices 300a, 300c can shift to the new channel in order to be served by the network node 200. Hence, according to an embodiment the network node 200 is configured to perform step S108:

S108: The network node 200 notifies the wireless devices 300a, 300b of the new channel in order to serve the wireless devices 300a, 300b in the new channel.