Design principles for 5G Toward a new paradigm, All-IT Network architecture Unbundling Software/Hardware Decoupling Unbundled Function Blocks Control-/User-plane Separation Open Source Open Source Software (OpenStack, CORD) Open Source Hardware (OCP, TIP) Open Interfaces (Fronthaul, API) Softwarization NFV (Network Functions Virtualization) SDN (Software Defined Networking) Orchestration & Network Slicing (XaaS) Cloudification From CAPEX model to OPEX model Virtualization & DevOps Environments Dynamic & Automated Operation 1
SKT s approach ATSCALE / COSMOS Static and monolithic mobile network is no longer viable. Distinguished 5G values can be efficiently offered via new telecom infra architecture Today Infra Future Infra All IT Network Architecture Fixed Scalable Composable Unaware Cognitive Open Manual Automated Scalable Fat & Monolithic Lean Mission-critical Domain-Specific End-to-end Optimized System 2 ATSCALE & COSMOS ATSCALE / COSMOS White paper download
ATSCALE / COSMOS simple view New Services Ultra High Data Rate (AR/VR ) Low Latency (Connected car, Public safety ) Massive Connectivity (IoT) Next-Generation OSS Network slicing Software-defined RAN Software-defined Core Software-defined Infrastructure Open Hardware and Software Universal Platform 3
ATSCALE / COSMOS detailed view Unified-O COSMOS Fronthaul Low Latency Service Immersive Media Telco Service Edge DC Open & Programmable H/W Local NFV Orchestrator RNF End-to-end Network Orchestration Virtualized Network Functions Resource Abstraction Layer Transport Infra Orchestrator CNF TNF ESF CSF OSF Mobile Connectivity Functions Service Orchestration and Exposure Network Service Functions Transport Infrastructure Transport POTN Open H/W uctn Virtualized Network Slice #1 Central DC Open & Programmable H/W #2 #N NG-OSS (E2E Resource Mgmt., Cognitive & Intelligent Automation) 4G L1/L2 WAN SDRAN Software-defined RAN 4 5G RF Remote Unit RNF: Radio Network Function, CNF: Core Network Function, vcore uctn TNF: Transport Network Function, ESF: Edge Service Function, CSF: Centralized Service Function Virtualized Core Unified Converged Transport Network
A key component of ATSCALE - Software-defined RAN (SDRAN) 5 Radio Network Functions (UP, CP, RP) User Plane 2 CP/UP separation Edge Cloud SDRAN Orchestration Virtualized Functions Virtualization Open H/W Edge Service Functions Remote Access Unit (RAU) User Plane Lower Layer 1 Open Front-haul 4 Biz Enabling with MEC 5 Analytics Control Plane Radio Unit Ops Supp. Functions 3 Open HW/SW 1 Open Front-haul and modular RAU Open front-haul for flexible RAN function split Standard interface for RAU 2 CP/UP separation through standard interface UP in dedicated H/W and CP in virtualized function Standard and open interface between UP/CP 3 Open H/W and S/W White-box, Bare-metal, OCP-based H/W OpenStack-based S/W 4 MEC Proximity-based Mobile Edge Services E2E Network Slicing incl. RAN, Transport, Core 5 Analytics-based SON
Dynamic E2E Network Slicing & its Life-Cycle Management(LCM) Order LCM Service LCM E2E Network Slice LCM NFV MANO Day-0 Configuration (Deployment) Day-N Configuration (Service Config.) End-to-end Network Orchestration North-Bound I/F (Service Orchestration, NG-OSS, BSS) E2E Network Slice Life-Cycle Mgmt. E2E Network Slice Catalog LCM Action Status South-Bound Interface (Local NFV Orchestrator, Transport Infra Orchestrator, PNF/VNF) PNF/VNF Adaptor Open API Transport Infra. Local (DC #i) NFV Orchestrator Orchestrator Local (DC #j) NFV Orchestrator VNF LCM Resource LCM Transport-SDN Generic VNFM Common VIM Generic VNFM Common VIM VL Service LCM NS LCM VNF Local NS LCM VNFC VM VNFC VNFC VL PNF VM PNF Container VL Local Network Slice (DC #i) BSS Service Orchestration TNaaS VNF VNF Descriptor On-board Local Network Slice (DC #j) Status NS LCM NG-OSS (Inventory Mgmt., Collection, E2E Assurance, Analytics, Controls) Dynamic End-to-End Network Slice 6 LCM: Life-Cycle Management NS: N/W Service VNF: Virtual N/W Function VNFC: VNF Component VIM: Virtualized Infra Manager VL: Virtual Link PNF: Physical N/W Function DC: Datacenter MANO: Mgmt. and Orchestration
COSMOS: Composable, Open, Scalable, Mission-critical Optimized System Open Software and Hardware for telco-grade Mission-critical services Services Media IoT AI Autonomous driving Telco (LTE/5G) Service-Optimized Platform Open Software (Virtual Infrastructure) Unbundled SW-Defined Compute Virtual Resource SW-Defined Networking SW-Defined Storage Virtualization Layer AI Compute Cloud Data Center Operation Automation/ Intelligence Open Hardware (Physical Infrastructure) Server(CPU ) Physical Resource Network Storage GPU High-Speed NW Analytics 7
COSMOS Open Software Architecture SDDC(Software Defined Data Center) based on Open source ü Open Source based ü Optimized for diverse worklo ad (5G, AI, ) ü Hybrid Resource (VM, Container, BM) 8
SK telecom s open source community activities STK is actively engaged in diverse open source community activities in pursuit of open innovation 9
M-CORD SK telecom with leading service providers, AT&T and Verizon, is envisioning an open 5G platform Contributing Members Collaborators 10 * Open source EPC (from Radisys), RAN L2, L3 (from Radisys), Scalable S/PGW (Intel)
M-CORD M-CORD showcased innovation both for mobile network infrastructure and services at MWC `17 INFRASTRUCTURE Services MME disaggregation & IoT GW Connectionless for Static IoT Public safety w/ Network cookie End-to-End Network slicing Active-testing & Analytics 11
OpenStack in SK telecom Community version OpenStack + SONA (Virtual network) + SKT Ceph (Storage) ü Optimization for Telco-workload ü SONA+ONOS based Virtual Network + Ceph ü Kubernetes based Life-Cycle management 12
Telecom Infra Project (TIP) TIP started to rethink the existing telecom infrastructure to support the unconnected people People and Process System Integration and Site Optimization Solutions Integration TIP Project Groups Access Projects Backhaul Projects Core & Management Projects Edge Computing Open Optical Packet Transpo rt Core Network Optimization OpenCellular Wireless Acce ss Platform Design Greenfield Telecom Networks 13 13
TIP 4G Unbundled Project Resolve the technical barriers to rollout of carrier-grade services with simpler, streamlined designs b ased on open API Construct an end-to-end unbundled and integrated 4G solution Migrate to 5G as solutions & technology become available Participating members: Lead SI (RF) BaiCells, AceAxis, AW2S (Lab & Infra) Facebook SW 14
Open innovation through Ecosystem collaboration is an accelerator in the journey to 5G 15