Recommendation ITU-T Q.3315 describes the signalling requirements, based on the service platform broadband network gateway (BNG) architecture,needed to achieve outstanding benefits like easy deployment of network services,fine grained network services,etc.This Recommendation covers the following three aspects for the signalling requirements:1) network services combination/orchestration,i.e.,the packet routes between network services 2) service configuration on the BNG 3) BNG resources,status and event notification to the service platform.