Control apparatus for radio access network

A control apparatus for a radio access network (RAN), comprising:

• a generation unit configured to perform machine learning based on learning data and generate a first learning model;
• a transmission unit configured to transmit the first learning model to another control apparatus that controls the RAN using the first learning model;
• and
• a determination unit configured to obtain one or more measurement values of an inference speed of the first learning model from the other control apparatus, and determine, based on the one or more measurement values and a reference value of the inference speed, whether to transmit a second learning model to the other control apparatus, the second learning model being used for a same control as the first learning model and having a faster inference speed than the first learning model,
• wherein, when the determination unit determines to transmit the second learning model to the other control apparatus, the transmission unit transmits the second learning model to the other control apparatus.