Improvement of Policy Charging Control Flow Based on Internet Subscribers Behavior

Balitower has two kinds of products which are paid internet and free internet. Unified Policy Charging Control (PCC) is handling both internets traffic, which is paid internet and free internet to have more flexibility in managing various product. Technically both traffic will get the same treatment by PCC to refer to 3GPP Standard in accordance to deletion of the session. 3GPP has arranged that deleting a session on PCRF can only be done if there is an initiation from a different node. This rule is suitable to be applied for the paid subscriber which is expected to be always active until run out of credit or expired, while to keep session for free internet will depending on subscriber behaviour. Based on free internet data traffic from first weeks till twelfth of 2020, it was found that 70% of the subscriber to access the internet was less than five times a week and more than 60% of subscriber-only accesses within 5 minutes. By referring to that data, it proposed to have automatic session deletion for free internet in PCRF to allow other customers to access the internet without having to add cost for license upgrade.