This disclosure relates to radio communication. In particular, this disclosure relates to methods and means (e.g. a Core Network (CN) node) for assisting a RAN node (e.g. eNB) in performing Semi Persistent Scheduling (SPS). According to an example embodiment, the CN node is operative to: monitor (101) data traffic pertaining to a UE; determining (102) a traffic pattern based on the monitored data traffic; classify (103) the determined traffic pattern into different categories based on the determined traffic pattern; establish (104) a traffic shaping policy for each category of the different categories; and initiate (105A/105B) a dedicated bearer establishment for thereby enforcing the established traffic shaping policy.