Design and Implementations of non-3GPP Wireline Access Gateway for 5G Wireless and Wireline Convergence

To support the 5G Wireless and Wireline Conver-gence (5G-WWC) architecture, the Access Gateway Function (AGF) is defined to serve as an interworking function between the 5G core (5GC) and fixed network residential gateways (FN-RG) with a non-3GPP wireline access network. AGF acts as a proxy to communicate with 5GC on behalf of FN-RG. This paper presents a design for AGF that realizes control and user plane separation. Three different implementations based on user-space, kernel-space, and kernel-bypass (DPDK) softwares are reported and tested. The results confirm the superiority of the kernel-bypass approach in terms of latency and throughput of user-plane traffic.