A method and network node for predicting and adapting to mobile radio link characteristics in a sector are disclosed. According to one aspect, a method includes learning a set of at least one trajectory based at least in part on a first set of observations received from at least one wireless device (WD), a trajectory including a subset of the first set of observations. The method also includes assigning a trajectory in the set of at least one trajectory to a first WD of the at least one WD based at least in part on a second set of observations received from the first WD subsequent to receipt of the first set of observations. The method further includes adjusting an update period for receiving future observations from the first WD based at least in part on the assigned trajectory.