A user device, UE, for a wireless communication network, is connectable to two or more of a plurality of network slices of the wireless communication network, wherein a slice specific random access channel, RACH, resource configuration is associated with one or more of the plurality of slices. Responsive to a first RACH event associated with a first slice, the UE is to determine whether there is an ongoing RACH procedure triggered by a second RACH event associated with a second slice. In case of an ongoing RACH procedure, the UE is to ・ prohibit an additional RACH procedure triggered by the first RACH event associated with the first slice, and/or ・ suspend the additional RACH procedure for a certain time, and/or ・stop the ongoing RACH procedure and start the additional RACH procedure, and/or ・modify the ongoing RACH procedure, and/or ・modify the ongoing RACH procedure to start the additional RACH procedure.
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