6G Distributed Autonomous Core Network with Proxy Architecture and HTTP/3 Transport
Zhigang Tian, Ming Zhao, Richard Yi Da Xu, Chao Liu · 2024
5GC adopted the SBA architecture utilizing the cloud native technologies. The flat ‘bus’ SBI faces dramatic signaling overhead, therefore 3GPP defined a network function SCP(Service Communication Proxy) in Rel-16 with the additional consideration that cloud native framework is also evolving into service mesh architecture. And then the SCP is quickly deployed into operational commercial network, alleviated the signaling pressure across different regions of 5G core network. From 5G-Advance, 5GC network functions are deployed near base station more and more to handle the core network related traffics in MEC and NPN (Non-Public Network) etc.. According to the industry vision of 6G, these decentralized core network functions may group into autonomous units, which would interactive with each other and also centralized network functions. The DAN(Distributed Autonomous Network) architecture need a distributed cloud infrastructure and framework to support these distributed autonomous unites. Based on Rel-16 SCP, this paper proposes a proxy architecture for autonomous unit in 6G DAN with the consideration of emerging computing technologies and distributed cloud native stack including the HTTP/3 transport layer and RDMA disaggregated storage. Preliminary benchmarking shows the proposed architecture may bring about $\mathrm{3 0 \%} \sim \mathbf{1 0 0 \%}$ concurrency improvement and $\mathrm{2 0 \%} \sim 60 \%$ latency reduction.