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SCF Partners' Day: Standards and Interoperability


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Presentation on standards and interoperability for the SCF Atlanta Partners' Day.

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SCF Partners' Day: Standards and Interoperability

  1. 1. Partners Day Standards and Interoperability © Small Cell Forum Ltd 2017
  2. 2. Session Agenda • RAN Standards 25 mins= • SCF Vision [Prabhakar Chitrapu] 5mins • 3GPP [Vince Spatafora] 15mins • Discussion 10mins • Edge and Cloud Standards 25 mins= • SCF vision [Prabhakar Chitrapu] 5mins • ETSI MEC & NFV [Pierre Lynch] 15mins • Discussion 10mins • Interoperability 40 mins= • IOP Vision [Kreso Bilan] 5mins • SON testing [Joe Thome] 5mins • GSMA [Michele Zarri] 10mins • Discussion 20mins • 3GPP, CBRS-A, GSMA, ETSI © Small Cell Forum Ltd 2017
  3. 3. Prabhakar Chitrapu Chair SCF Technology and 5G WG RAN Standards for Small Cells
  4. 4. RAN Standards Tech&5G: 10 Year Roadmap 2027 Target State Milestones Open and interoperable standards broadly embraced by the vendor community. An SDO ecosystem wherein complementary specifications are collaboratively developed in an open source environment, enabling rapid global innovation. Interfaces defined between Physical and Virtual Network Functions and OAM, as well as Control and User Planes • Harmonisation of Radio & Network Standards • Radio Standards across Macro & Small cell (LTE & 5G) • Radio Standards across Licensed, Unlicensed & Shared Spectrum • Virtualisation Standards-ETSI / Cellular standards-3GPP • Edge Computing Standards • 5G Interface Adoption (F1 interface, N2 interface, Xn interface) • F1/nFAPI harmonization/adoption © Small Cell Forum Ltd 2016
  5. 5. 3GPP Collaboration Objectives • Bi-Directional Information Exchanges and Collaboration (as appropriate) to ensure Small Cells are correctly & comprehensively addressed in standards defining HyperDense HetNets and 5G architectures • Ensure that Small Cell deployments in Enterprises (taking into account pre-existing Enterprise IT systems) are suitably addressed in 3GPP standards • Jointly lead the industry to avoid fragmentation and enable multi-vendor interoperability in the following areas: • virtualized small cells (protocol splits and nFAPI); Management Models for PNFs; Orchestration approaches for VNFs (ETSI-MANO, ONAP etc). • truly Multi-Vendor SON solutions for a Multi-Layered (Macro-Micro-Pico-SmallCell) Cellular Network (which we think is still not possible, except in a limited sense, e.g. interference management). • Edge Computing Architectures and Interfaces and APIs, taking into account work being done by 3GPP CUPS, ETSI-MEC, Open Edge Computing (OEC), Open Fog Computing (OFC) etc. • Jointly explore Open Source Initiatives © Small Cell Forum Ltd 2016
  6. 6. Vince Spatafora Vice Chair TSG RAN, 3GPP 3GPP
  7. 7. S m a l l C e l l F o r u m , P a r t n e r ’ s m e e t i n g - A t l a n t a 2 6 & 2 7 J u l y © 3GPP 2012 © 3GPP 2017 7 Market Representative Partners • 17 Market partners representing the broader industry: Partnership 2/2 • 5G Americas, • 5G Infrastructure Association, • COAI (India), • CTIA, • GCF, • GSA, • GSMA, • IPV6 Forum, • MDG (formerly CDG), • NGMN Alliance, • Public Safety Communication Europe (PSCE) Forum, • Small Cell Forum, • TCCA, • TD Industry Alliance, • TD-Forum, • Wireless Broadband Alliance NEW: 5G Automotive Association (5GAA)
  8. 8. The 3GPP-centric standards map (5G) ITU-R/T Reference to 3GPP specs SDO Partners govern the project & transpose 3GPP specs locally Cross referenceDirect Requirements JapanEU Korea China North America 3GPP Market Partners Terminal certification based on 3GPP specs India 5G Projects Requirements via Member contributions
  9. 9. S m a l l C e l l F o r u m , P a r t n e r ’ s m e e t i n g - A t l a n t a 2 6 & 2 7 J u l y © 3GPP 2012 © 3GPP 2017 9 TSG RAN Radio Access Network RAN WG1 Radio Layer 1 spec RAN WG2 Radio Layer 2 spec Radio Layer 3 RR spec RAN WG3 Overall RAN architecture and protocols for Iu, Iur, Iub, S1 and X2 interfaces RAN WG4 Radio Performance Protocol aspects RAN WG5 Mobile Terminal Conformance Testing RAN WG6 GSM EDGE Radio Access Network TSG SA Service & Systems Aspects SA WG1 Services SA WG2 Architecture SA WG3 Security SA WG4 Codec SA WG5 Telecom Management SA WG6 Mission-critical applications TSG CT Core Network & Terminals CT WG1 MM/CC/SM (lu) CT WG3 Interworking with external networks CT WG4 MAP/GTP/BCH/SS CT WG6 Smart Card Application Aspects Project Coordination Group (PCG)
  10. 10. S m a l l C e l l F o r u m , P a r t n e r ’ s m e e t i n g - A t l a n t a 2 6 & 2 7 J u l y © 3GPP 2012 © 3GPP 2017 10 5G Work and Study Summary: Source: SA Chairman (May 2017)
  11. 11. S m a l l C e l l F o r u m , P a r t n e r ’ s m e e t i n g - A t l a n t a 2 6 & 2 7 J u l y © 3GPP 2012 © 3GPP 2017 11 5G timeline Non-standalone 5G • Uses LTE core and LTE radio anchor with a 5G small cell • Mobile BroadBand capacity boost Standalone 5G • Uses 5G core and 5G radio anchor • 5G overlay • Expansion of the wireless ecosystem
  12. 12. S m a l l C e l l F o r u m , P a r t n e r ’ s m e e t i n g - A t l a n t a 2 6 & 2 7 J u l y © 3GPP 2012 © 3GPP 2017 12 Some Areas of Interest by Small Cell Forum vRAN in 5G and Functional RAN Splits 3GPP position on Open Source MEC Services and API’s Densification / Small Cell support and evolution SON – Evolution from LTE to 5G SON Small Cell Management
  13. 13. S m a l l C e l l F o r u m , P a r t n e r ’ s m e e t i n g - A t l a n t a 2 6 & 2 7 J u l y © 3GPP 2012 © 3GPP 2017 13 Status of Higher and Lower Layer RAN Functional Splits Higher Layer Split: • RAN3 is working on HL-Split, based on centralised PDCP/RRC and decentralised RLC/MAC/PHY (Option 2), for Release 15 • A study on Separation of CP and UP for the CU (Centralized Unit) for Option 2 split of NR began in June Lower Layer Split: • Several aspects of a LL-Split were studied during the RAN Study item • RAN3 just began a study for LL-Split in late June 2017. Several variants being considered between MAC & PHY or within PHY 5GC NG NG Xn NG-RAN gNB-DU gNB-DU gNB-CUgNB F1F1 gNB-DU gNB-DU gNB-CUgNB F1F1 Figure 6.1-1 Overall architecture (From BL DRAFT TS38.401)
  14. 14. S m a l l C e l l F o r u m , P a r t n e r ’ s m e e t i n g - A t l a n t a 2 6 & 2 7 J u l y © 3GPP 2012 © 3GPP 2017 14 The Impact of Open Source Initiatives 3GPP has no overall policy with respect to open source In several groups (especially in RAN), data models expressed in formal language (ASN.1) in CT WGs (in XML) in effect provide an encoding which can be considered source code In SA4, several specifications include C code. Example 26.077 includes source code
  15. 15. S m a l l C e l l F o r u m , P a r t n e r ’ s m e e t i n g - A t l a n t a 2 6 & 2 7 J u l y © 3GPP 2012 © 3GPP 2017 15 MEC Services and API’s 3GPP has a Common API Framework Study March 2017 (SA#75) - the new Study on Common API Framework for 3GPP Northbound APIs was started (SA6) For new / ‘vertical’ business sectors The study will focus on architectural aspects such as registration, discovery and identity management that generally apply to all services. Common API Framework Functions could be achieved uniformly for such capabilities as Service API discovery, monitoring and charging 3GPP considering the reuse of existing applicable standards. TR23.722 is looking at API work done by other 3GPP WGs, the OMA API Program and the ETSI MEC API framework 750031 Study on Common API Framework for 3GPP Northbound APIs FS_CAPIF Rel-15 S6 SP-170405 new TR 23.722
  16. 16. S m a l l C e l l F o r u m , P a r t n e r ’ s m e e t i n g - A t l a n t a 2 6 & 2 7 J u l y © 3GPP 2012 © 3GPP 2017 16 Densification and Small Cell Support / Evolution Much of the work on 5G NR is being done for spectrum >6Ghz, Small Cells and network densification are a high priority use cases Consideration being given to numerous aspects; from channel model, features, migration scenarios, and connectivity options (e.g. Dual Connectivity with LTE)
  17. 17. S m a l l C e l l F o r u m , P a r t n e r ’ s m e e t i n g - A t l a n t a 2 6 & 2 7 J u l y © 3GPP 2012 © 3GPP 2017 17 SON Evolution from LTE to 5G SON The addition of another Radio Access Technology (RAT) will trigger the need for automated tools to help Operators in operating multi- RAT networks SA5 has just started studying the Management and Orchestration of 5G, where SON is included NFV & SDN could bring SON-MANO cooperation Vertical markets (connected automotive, IoT, smart city, etc.) could lead to per vertical SON features Network slicing could lead to per network slice SON features Look for SON, for FS_MAN_NGNAF or SA5 in the work plan
  18. 18. S m a l l C e l l F o r u m , P a r t n e r ’ s m e e t i n g - A t l a n t a 2 6 & 2 7 J u l y © 3GPP 2012 © 3GPP 2017 18 Small Cell Management TS32.582 - Management of HNB for UMTS, since Rel-8; TS32.592 - Management of HeNB for LTE, since Rel-9 These specifications were maintained in Rel-9 and Rel-10 time frames, with no substantial changes in them since that time The SCF has held discussions with the SA5 about extensions in SA5 specs and TR-196 (2016). This did not result in any contributions to SA5 as yet
  19. 19. S m a l l C e l l F o r u m , P a r t n e r ’ s m e e t i n g - A t l a n t a 2 6 & 2 7 J u l y © 3GPP 2012 © 3GPP 2017 19 For more Information: Search for WIDs at and (See excel sheet)
  20. 20. S m a l l C e l l F o r u m , P a r t n e r ’ s m e e t i n g - A t l a n t a 2 6 & 2 7 J u l y © 3GPP 2012 © 3GPP 2017 20 General 3GPP Slides…
  21. 21. S m a l l C e l l F o r u m , P a r t n e r ’ s m e e t i n g - A t l a n t a 2 6 & 2 7 J u l y © 3GPP 2012 © 3GPP 2017 21 5G Phase 1 Scenarios for 5G CN + NG NR 5G deployments • Support 5G CN standards; or • Support NG NR; or • Support both Migration: devices in one scenario to operate properly in other scenarios. • Scenarios do not introduce any incompatibility or market fragmentation.
  22. 22. S m a l l C e l l F o r u m , P a r t n e r ’ s m e e t i n g - A t l a n t a 2 6 & 2 7 J u l y © 3GPP 2012 © 3GPP 2017 22 5G Serves New Verticals Since 3GPP was founded (1998), member companies have sought to offer new applications and services via data services of mobile telecommunications. 5G expands offerings by specializing radio and network capabilities, exposing them. • Enhanced Mobile Broadband • Massive Internet of Things • Ultra-Reliable & Low Latency
  23. 23. S m a l l C e l l F o r u m , P a r t n e r ’ s m e e t i n g - A t l a n t a 2 6 & 2 7 J u l y © 3GPP 2012 © 3GPP 2017 23 Stage 1 Requirements 5G Requirements approved March 2016 include • Specialization via Network Slicing, Diverse Mobility Management, expanded QoS and Policy control, Exposure of capabilities • Efficiency via a common core for multiple accesses (fixed, mobile/terrestrial [LTE, NG NR and more], satellite), optimized signalling, traffic steering, content delivery features, energy use optimization • Radio related improvements via Self Backhauling, Flexible Multicast/Broadcast service, Long Range in Rural Areas, and support for service improvements • Service improvements via Higher Data Rates, Supporting Higher Speeds, Low Latency, High Reliability, High Accuracy Positioning, Security Features Specific targeted services • Vehicle to Everything, Industrial Automation, Tactile Internet, UHD Video, …
  24. 24. S m a l l C e l l F o r u m , P a r t n e r ’ s m e e t i n g - A t l a n t a 2 6 & 2 7 J u l y © 3GPP 2012 © 3GPP 2017 24 5G Architecture WID Objectives
  25. 25. S m a l l C e l l F o r u m , P a r t n e r ’ s m e e t i n g - A t l a n t a 2 6 & 2 7 J u l y © 3GPP 2012 © 3GPP 2017 25 Other Key Aspects of 5G Security and Privacy, support includes • Secure virtualized and exposed Network Functions • Secure service-based interfaces between network functions • Single security anchor for all access networks • ETSI SCP Smart Secure Platform (SSP) • Unified authentication framework Management • Orchestration for network slicing • Virtual Network functions that are part of NR • Management and orchestration of 5G CN (including NFV aspects)
  26. 26. S m a l l C e l l F o r u m , P a r t n e r ’ s m e e t i n g - A t l a n t a 2 6 & 2 7 J u l y © 3GPP 2012 © 3GPP 2017 26 5G Phase 2 Outlook RAN phase 2 features studies have been identified and approved, to start soon SA phase 2 feature studies will start soon Requirements are not expected to change, and phase 1 forms the basis for ongoing work in phase 2.
  27. 27. Panel Discussion RAN Standards for Small Cells
  28. 28. Prabhakar Chitrapu Chair SCF Technology and 5G WG Edge & Cloud Standards
  29. 29. Virtualisation, Cloud, Edge Tech & 5G: 10 Year Roadmap 2027 Target State Milestones Fully virtualised network that can be sliced and diced to offer a range of services optimised for different QoS requirements. Operators can expose API to connectivity resellers to enable them to address niche markets. Fully distributed cloud, some of the local apps supported by small cells Now Virtualized core networks 1-3 Years Virtualization of RAN/Edge Networks to extend benefits of flexibility/agility and enable new services E2E Network Slicing for Multi-Service support Alignment across SDOs & Industry Forums 3-5 Years Slicing APIs developed to enable configuration and control by third parties Simplified/Containerized RAN/Edge networks Disaggregation and Distribution of Mobile Core Network functions 5-10 Years Ultra Low Latency and Highly Reliable distributed cloud/fog deployments Unified Orchestration across (Distributed) Core & (Disaggregated) RAN Edge Services based on MNO’s Telco Cloud & 3rd Party’s Public Cloud & Edge Infrastructures © Small Cell Forum Ltd 2016
  30. 30. ETSI Collaboration Objectives • ETSI-MEC • API development: Bi-Directional Information Exchange, Requirements (SCF), Review for Gaps (SCF) • Distributed Infrastructure Architecture Study to support Edge Computing • Orchestration Framework: Extend to ONAP • Potential Engagement with BIZ for ETSI-MEC API industry adoption/profile definitions, IOP for Pulgfests • ETSI-NFV: • Regular information exchanges • Distributed Infrastructure Architecture Study to support VRAN & CDN © Small Cell Forum Ltd 2016
  31. 31. Pierre Lynch Vice Chair ETSI NFV TST ETSI MEC and NFV 2.1 ETSI MEC Overview SCF July2017.pptx 2.2 ETSI NFV for SCF Partner Day.pptx
  32. 32. Panel Discussion Cloud and Edge
  33. 33. Kreso Bilan, Chair SCF Interoperability WG Interoperability Vision
  34. 34. Why do we do Interoperability Testing • A strong small cell ecosystem requires that operators have a wide choice of interoperable equipment from a range of suppliers from which to build their HetNets • PlugFests a first test of multi-vendor interoperability and help to both debug product implementations and clarify standards ambiguities • Conformance testing and certification come at a later stage of maturity © Small Cell Forum Ltd 2017 Value of Small Cell Forum PlugFests [085]
  35. 35. Interoperability WG: Where we are today • Value of plugfests • Reports • Test cases • Press releases • 3G: 1, 2, 3 • LTE: 1, 2, 3, 4, 5 • Twitter • KPIs © Small Cell Forum Ltd 2017
  36. 36. IOP WG milestones 2027 • 5G interface plugfests • F1, N2, Xn, management interface • SON plugfests • Macrocell & small cell SON interoperability • SON performance benchmarking test cases • 5G SON • 5G is “system of systems” • NFV SON interoperability • RAN and beyond RAN based SON / SON Systems: SON among different Generation System • New SON target e.g. backhauling (LTE, or any other technology) Interoperability WG: Vision 2027 • Private networks (MEC) plugfests • Phase 1 - API definition • Phase 2 • NFV based ePC - HSS (real time delays not important for control signalling) • xRAN • CBRS © Small Cell Forum Ltd 2017
  37. 37. • Plugfests • Pro: • Verifies standards, discovers bugs in implementation, gives an overview of competition, marketing effect • Action: • Plugfests can also serve as Carrier acceptance test centre for some operators • Question: is any other forum interested in co-organising plugfest? • Permanent plugfest lab • Pro: • Familiar environment for participants (Significantly reduced preparation time for plugfests) Interoperability WG: mutandi modus operandi 1/2 © Small Cell Forum Ltd 2017
  38. 38. • Stronger support for test cases • Pro: • SCF members are using test cases for private tests as a reference • Sharing test cases with other industry fora reduces the cost of writing test cases and increases the quality • Question: is any other forum interested in collaboration in writing test cases? Interoperability WG: mutandi modus operandi 2/2 © Small Cell Forum Ltd 2017
  39. 39. Joe Thome SCF Champion for Hyperdensity Testing SON Interoperability
  40. 40. SON IOP Activities Example Where are we? SON 2017 Plugfest SON Features • Physical Cell Identity (PCI) Optimization: 17 tests • Automatic Neighbor Relation (ANR): 17 tests • Mobility Robustness Optimization (MRO): 23 tests • Inter-Cell Interference Cancellation (ICIC): 14 tests • Frequent Handover Mitigation (FHM): 8 tests SCF IOP Work Areas • Test case development • Test acceptance/success criteria develoment • Plugfest organization • Results publication © Small Cell Forum Ltd 2017 Test type run (ok) run (nok) n/a run (total) total INTRA-VENDOR 103 2 101 105 206 INTER-VENDOR 124 19 128 143 271 WITH MACRO 55 0 41 55 96
  41. 41. SON IOP Activities Example Where are we going? • Active closed loop SON importance is increasing as spectral efficiency becomes essential with small cell deployment moving from indoor to outdoor and the emergence of shared spectrum. • Focus on expanding plugfest on HetNet environments specifically Macro-cell / Small Cell inter-operability • Refine the existing SON feature test suites • PCI, ANR, MRO • SCF member proposals that came in after the test suite freeze • Add new features • MLB, eICIC, … • New priorities, roadmap to extend SON IOP coverage • Feedback from vendors and operators in terms of challenges / specific problems / priorities • Looking ahead: 5G optimization interoperability, SD-RAN optimization interoperability (eg. xRAN) • Question: What are test cases, performance criteria and test priorities for other forums? • Question: Are there way to coordinate on parameter definitions to facilitate close loop SON © Small Cell Forum Ltd 2017
  42. 42. Michele Zarri Technical Director, GSMA GSMA
  43. 43. © Small Cell Forum Ltd 2017 Role and Goals of GSMA for 5G
  44. 44. © Small Cell Forum Ltd 2017 What the CEOs think Future networks will… • Rely on a combination of mainstream and alternative technologies • Built independently or via partnerships • Use both licensed and unlicensed spectrum • Operate across different spectrum bands
  45. 45. © Small Cell Forum Ltd 2017 The access layer in the 5G Era Densification challenge • The new core network will be access agnostic allowing operators to exploit several combinations of access technologies: • Deploy Small Cells • Combine 5G with fixed access • Combine 5G with 4G (overlay) • Deploy in unlicensed spectrum • Integrate WiFi access • Infrastructure owned by neutral hosts expected to play a key role
  46. 46. © Small Cell Forum Ltd 2017 Why interoperability matters GSMA activity • GSMA is working with its members to explore the network economics aspects of mobile networks, focusing in particular on: • benefits of infrastructure sharing • Infrastructure sharing models • Introduction to 5G • Alternative backhaul and transmission technologies Small cells will be part of the assets operators share with other operators Small cells will be a key component of the heterogeneous 5G network Models such as “bring your own cell” or neutral hosting likely to emerge
  47. 47. Panel Discussion Interoperability
  48. 48. Networking Lunch Return for Operations Session at 1400