Small Cells and Virtualization
1 like1,347 views
The document discusses small cell network virtualization and next steps. It finds that current small cell architectures are well-suited for virtualization using FAPI MAC/PHY decomposition. Virtualization can deliver benefits like centralization, transport cost reduction, and elastic scaling. It also enables a phased roadmap aligned with 5G. The Small Cell Forum is defining an nFAPI specification to accelerate multi-vendor PNF/VNF interoperability and laying the foundations for virtualized small cell deployments.
Small Cells and Virtualization
- 1. Small Cell Virtualization Champions Presentation Dallas Nov 2015 Mark Grayson (Cisco) & Shi Xiaohui (CMCC) VCHTENPHY
- 2. Virtualization Mobile Networking Mega Trends Indoor coverage, higher frequencies, shorter ranges, increased co- ordination Not just Mobile Broadband, but APIs and agility to support verticals and IoT value chains Twin focus on CAPEX/ asset utilization as well as OPEX/automation © Small Cell Forum Ltd 2015 Base Station Densification Broader set of Use Cases NFV and SDN
- 3. Topic SCF-106 Findings What are the real business benefits of virtualization in the RAN? Identified centralization benefits, transport costs & MANO/Automation elastic scaling capabilities Are current small cell architectures well suited to virtualization? Yes - FAPI MAC/PHY decomposition well suited to provide virtualization baseline Can virtualization deliver a phased roadmap, e.g., aligned with longer- term 5G directions? Yes - Flexible virtualization over non- ideal transport now emerging as core 5G requirements How do we ensure virtualization supports innovation across a multi- vendor ecosystem? SCF’s nFAPI work stream set to accelerate multi-vendor PNF/VNF interoperability SCF-106 Small Cell Virtualization Laying the foundations © Small Cell Forum Ltd 2015
- 4. Topic SCF-106 Findings What are the real business benefits of virtualization in the RAN? Identified centralization benefits, transport costs & MANO/Automation elastic scaling capabilities Are current small cell architectures well suited to virtualization? Yes - FAPI MAC/PHY decomposition well suited to provide virtualization baseline Can virtualization deliver a phased roadmap, e.g., aligned with longer- term 5G directions? Yes - Flexible virtualization over non- ideal transport now emerging as core 5G requirements How do we ensure virtualization supports innovation across a multi- vendor ecosystem? SCF’s nFAPI work stream set to accelerate multi-vendor PNF/VNF interoperability SCF-106 Small Cell Virtualization Laying the foundations © Small Cell Forum Ltd 2015
- 5. Virtualization Next Steps: Develop definition of nFAPI central/remote MAC/PHY spilt Conventional Small Cell PHY / RF Layer 2 RRC S1 / X2 Client IPsec GPS / Location Timing/Sync SC Management TLS / IPSec Small Cell EMS VNF Centralized Functions Layer 2 RRC S1 / X2 Client IPsec Timing/Sync Management TLS / IPSec VNF EMS PNF Remote SC Radio PNF EMS Timing/Sync PNF Management GPS / Location PHY / RF Service Discovery Service Discovery © Small Cell Forum Ltd 2015
- 6. Conventional Small Cell PHY / RF Layer 2 RRC S1 / X2 Client IPsec GPS / Location Timing/Sync SC Management TLS / IPSec Small Cell EMS VNF Centralized Functions Layer 2 RRC S1 / X2 Client IPsec Timing/Sync Management TLS / IPSec VNF EMS PNF Remote SC Radio PNF EMS Timing/Sync PNF Management GPS / Location PHY / RF Service Discovery Service Discovery Virtualization Next Steps: Develop definition of nFAPI central/remote MAC/PHY spilt © Small Cell Forum Ltd 2015
- 7. VNF Centralized Functions Layer 2 RRC S1 / X2 Client IPsec Timing/Sync Management TLS / IPSec VNF EMS PNF Remote SC Radio PNF EMS Timing/Sync PNF Management GPS / Location PHY / RF Service Discovery P9 P2 P10 P3 nFAPI Decomposition P2 – Service Discovery P3 – Positioning P4 – NMM P5 – RF and PHY Control P7 – MAC-PHY main SAP P8 – PHY Diagnostics P9 – OAM P10 – Synchronization – Frequency, Phase and Time P5, P7, P8 P4 Virtualization Next Steps: Develop definition of nFAPI central/remote MAC/PHY spilt © Small Cell Forum Ltd 2015
- 8. • Reduced cost • Improved space/ power consumption compared to ATCA • Scales down to low- end edge deployments • SW fully decoupled from HW • Flexibility in terms of performance and functions Small Cell Network Virtualization Ready for Commercial Deployment Hardware Layer Pla,orm Layer Service Layer Hypervisor VM VM VM VIM Hypervisor VM VM VM Intel Reference COTS Server Reduced Capex/Opex for off- the-shelf IT devices. Simplified deployment, flexible scheduling, on- demand scaling due to hardware virtualization. Independent VNF software development and upgrades on top of fully-decoupled hardware platforms. VNF manger NFV Orchestrator Virtual Machine SmGW VNF SeGW VNF Other VNFs DPDK DPDK QAT Intel QAT Card © Small Cell Forum Ltd 2015
- 9. Virtualization Next Steps: Management and Automation Aspects of Virtualized Small Cells Centralized Small Cell VNF NFVI Hypervisor Hardware Resources (COTS) Remote Small Cell (PNF) DM VNF EMS (OSS/BSS) NM: PNF/VNF Co- ordination VNF Manager (VNFM) Virtualized Infrastructure Manager (VIM) NFV Orchestrator (NFVO) NFV-MANO PNF EMS DM VNF Manager (VNFM) Virtualized Infrastructure Manager (VIM) NFV Orchestrator (NFVO) Hypervisor Hardware Resources (COTS) • Small Cell Workload Placement Transport Network Management Integration • Hardware Acceleration of VNF Small Cell Functions IPSec Air interface Crypto RoHC PTP/Sync • Real Time Processing Aspects PCI/PCIe Pass-through, DPDK, Containerization, CP/DP separation © Small Cell Forum Ltd 2015
- 10. Your Chance to GET INVOLVED: Virtualization Deliverables/Timelines nFAPI Definition nFAPI Demonstration PDCP/RLC Recom’tions (ETSI ISG NFV) PoC nFAPI Std Ownership VNF SVC API/MEC Multi-operator Scoping 2017 Placeholder for SVC engagement Placeholder for Multi-Op engagement Kick-off Deliverables Complete 2015 2016 RPH PNF Management ETSI-MANO Recom’tions NET Board IOP © Small Cell Forum Ltd 2015 R6R5.1