Embodiments herein relate to a network node operable in a radio communication network and a method performed by the network for communication between the network node and a wireless device. The method comprises obtaining (110) information associated with a channel quality of a channel between the network node and the wireless device; and estimating (120) respective one or more variables associated with the channel quality based on the obtained channel quality information. The method (100) further comprises determining (130) an Outer Loop Link Adaptation, OLLA, adjustment based on the obtained channel quality information, and based on the estimated respective one or more variables associated with the channel quality, and when the obtained channel quality information indicates that the channel performance is acceptable: also based on a Sequential Hypothesis Testing, SHT, of the obtained channel quality information.