A method performed by a first network node (110), for managing channel access for a Wireless Device (WD) (120). The WD (120) supports one or more Radio Access Technologies (RATs). The first network node (110) receives a radio channel access request from the WD (120), which radio channel access request comprises information regarding a number of requirements on the channel access. The first network node (110) determines a channel access schedule based on the received information and channel statuses for the channels and RATs available within a geographical served by the first network node (110). The channel access schedule comprises information about the radio channel assigned to the WD (120). The first network node (110) further sends the channel access schedule to the WD (120).