An apparatus of a mobile terminal, the apparatus comprising at least one processor, at least one memory including computer program code, and at least one interface configured for communication with at least another apparatus, the at least one processor, with the at least one memory and the computer program code, being configured to cause the apparatus to perform: receiving, from a network node, information on a predictive model related to a radio resource management function, obtaining behavior information on an intended behavior of said predicted model, obtaining difference determination information on difference determination with respect to a predictive model prediction and said intended behavior, measuring a network condition, determining a prediction result based on said network condition and said information on said predictive model, determining a behavior result based on said network condition and said behavior information, receiving, from the network node, difference threshold information indicative of a difference threshold evaluating validity of said predictive model based on said prediction result, said behavior result, and said difference determination information by determining a value indicative of a difference between said prediction result and said behavior result based on said difference determination information, and comparing said value indicative of said difference with said difference threshold; deciding reduced validity of said predictive model, if said value indicative of said difference exceeds said difference threshold, and forwarding said measured network condition and/or said prediction result and/or said behavior result and/or said value indicative of said difference towards the network node in response to said deciding said reduced validity of said predictive model. at least one processor, at least one memory including computer program code, and at least one interface configured for communication with at least another apparatus, the at least one processor, with the at least one memory and the computer program code, being configured to cause the apparatus to perform: receiving, from a network node, information on a predictive model related to a radio resource management function, obtaining behavior information on an intended behavior of said predicted model, obtaining difference determination information on difference determination with respect to a predictive model prediction and said intended behavior, measuring a network condition, determining a prediction result based on said network condition and said information on said predictive model, determining a behavior result based on said network condition and said behavior information, receiving, from the network node, difference threshold information indicative of a difference threshold evaluating validity of said predictive model based on said prediction result, said behavior result, and said difference determination information by determining a value indicative of a difference between said prediction result and said behavior result based on said difference determination information, and comparing said value indicative of said difference with said difference threshold; deciding reduced validity of said predictive model, if said value indicative of said difference exceeds said difference threshold, and forwarding said measured network condition and/or said prediction result and/or said behavior result and/or said value indicative of said difference towards the network node in response to said deciding said reduced validity of said predictive model. receiving, from a network node, information on a predictive model related to a radio resource management function, obtaining behavior information on an intended behavior of said predicted model, obtaining difference determination information on difference determination with respect to a predictive model prediction and said intended behavior, measuring a network condition, determining a prediction result based on said network condition and said information on said predictive model, determining a behavior result based on said network condition and said behavior information, receiving, from the network node, difference threshold information indicative of a difference threshold evaluating validity of said predictive model based on said prediction result, said behavior result, and said difference determination information by determining a value indicative of a difference between said prediction result and said behavior result based on said difference determination information, and comparing said value indicative of said difference with said difference threshold; deciding reduced validity of said predictive model, if said value indicative of said difference exceeds said difference threshold, and forwarding said measured network condition and/or said prediction result and/or said behavior result and/or said value indicative of said difference towards the network node in response to said deciding said reduced validity of said predictive model.