Fixed, mobile and satellite convergence (FMSC) is the capability that provides services and applications to end users regardless of the fixed, mobile or satellite access technologies being used. This Recommendation specifies the requirements and framework for in-network aggregated federated learning (FL) to enable artificial intelligence (AI) in FMSC networks. In-network aggregated FL will enhance the network capability in FMSC to reduce the outgoing data traffic from the lower network entities, consume less bandwidth, and enable more efficient model aggregation over multi-hop networks under limited communication resources.