5G-Ready Transport Networks
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5G-READY TRANSPORT NETWORKS Evgeny Bugakov - Senior Systems Engineer © 2019 Juniper Networks LEGAL DISCLAIMER This product roadmap sets forth Juniper Networks’ current intention and is subject to change at any time without notice. No purchases are contingent upon Juniper Networks delivering any feature or functionality depicted on this roadmap © 2019 Juniper Networks WHAT IS 5G? © 2019 Juniper Networks 3 5G TECHNOLOGY DRIVERS © 2019 Juniper Networks 4 5G IS HERE! First 5G networks now live across Americas, EMEA and APAC: ▪ Still early days, mass nationwide roll-outs will still take several years. ▪ Mainly Mid bands in EMEA and APAC, High bands in Americas ▪ Worldwide 45%~65% coverage expected by 2024. https://www.ericsson.com/en/5g, October 22nd, 2019 © 2019 Juniper Networks 5 BUT WAIT A SECOND… © 2019 Juniper Networks 6 5G STANDARTIZATION PROCESS RELEASE 15 – 5G first phase (commercial deployments) 5G non-standalone (Dec 2017) and 5G standalone definitions (Jun 2018) Mainly focused on enhanced Mobile Broadband (eMBB) and fixed wireless May perform on lower speed (on sub-6GHz bands) comparable to LTE Advanced Pro (LAA – Licensed Assisted Access, Rel 13) -> Gigabit Class LTE on 20MHZ of licensed spectrum + 5Ghz unlicensed part RELEASE 16 – 5G second phase (further evolution) To be completed by the end of 2019 Focus on Ultra-Reliable Low-Latency Communications (URLLC, 1ms latency -> SD cars) and Massive Machine Type Communications (MMTC, 1m devices per km2 -> Industrial IOT) © 2019 Juniper Networks TRANSITION TO 5G © 2019 Juniper Networks TRANSITION TO 5G © 2019 Juniper Networks MOBILE TRENDS AND INVESTMENTS ▪ LTE will continue to Grow. ▪ 5G will be a journey. Current focus on 5G is with NSA and looking for Enterprise Services and Industrial IOT. Deployment % 5G ▪ Operators focuses on Mobile Transport upgrades in Backhaul and architecture refresh to take the wave of 5G in future. 4G (LTE-A) ▪ Operators are evaluating Fronthaul solutions that is defined by 3GPP to take advantage of network reach, capacity and cost. 4G (LTE) ▪ Initial trails and rollout on 5G SA focused beyond 2020. 2010 2015 2019 2025 ▪ We see new Vertical targeted services such as V2x, Massive IOT, Health Care beyond 2021. Source: IHS Markit, ACG © 2019 Juniper Networks MOBILE BACKHAUL EVOLUTION © 2019 Juniper Networks 11 TODAY’S METRO NETWORK © 2019 Juniper Networks 12 METRO-E AND LTE MOBILE TRANSPORT - TODAY Mobile Device Access Pre-Agg Aggregation Service Edge/Core eNodeB BNG (3G, 4G) EPC 1G N x 1G N x 10G N x 100G N x 100G Enterprise Inet GW BNG Residential L2 / L3 L3 Infra IP/MPLS / Seamless MPLS L3VPN Service L2 PW © 2019 Juniper Networks RADIO DRIVES TRANSPORT Speed (Gbps) 12 10 LTE LTE-A LTE-A Pro 5G 10 8 QAM 64 256 256 256 6 Capacity Channel BW 20MHz 20Mhz 20Mhz 500Mhz 4 3 Carriers 1 5 32 16 2 1 0.3 Antenna (MIMO) 4 8 32 64 to 256 0 LTE LTE-A LTE-A Pro 5G Latency (ms) 60 50 50 40 Efficiency & Beamforming CoMP Micro DC 30 Coverage 20 10 10 2 1 mmWave SmallCell RAN Split 0 LTE LTE-A LTE-A Pro 5G © 2019 Juniper Networks 14 BASE STATIONS EVOLUTION © 2019 Juniper Networks 5G RAN DESIGN OPTIONS/REQUIREMENTS • Fronthaul @ 150us • Low Latency Ethernet with TSN Profile RU DU • WDM Passive and Active • Dark Fiber • Midhaul @ 5ms • Ethernet/IP DU CU • WDM • OTN • Backhaul @ 10ms CU EPC • Carrier Ethernet © 2019 Juniper Networks CRAN DEPLOYMENT OPTIONS DRAN Centralized RAN Cloud RAN CPRI CPRI/ RoE / BBU Backhaul RoE eCPRI 10s Meters BBU Backhaul DU CU/Backhaul 1 to 10 KM Fiber 1 to 10 KM Fiber Fiber • BBU Pooling • DU Pooling • Co-located with Tower • Fiber / WDM. • Ethernet / Fiber / WDM. • Fiber • 1 – 10 KM • 1 – 10 KM • 10s of meters • Few deployments (10%) • Converged 4G/5G Fronthaul • Most deployed (90%) • Opportunistic OpEx • Bandwidth Reduction Reduction • Long term © 2019 Juniper Networks FRONTHAUL SOLUTIONS Juniper solution Tower Site CRAN Site LTE CPRI WDM WDM BH mmWave CPRI Today BBU LTE ROE 3+ x10GE Ethernet ACX/QFX/EX BH mmWave ROE BBU RoE Agnostic RoE Agnostic (Line Code Aware) (Line Code Aware) Bandwidth Reduction LTE CPRI ACX ACX CU/BH mmWave eCPRI CPRI eCPRI BBU DU Future ORAN, LPhy Bandwidth Reduction LTE CPRI ACX ACX CU/BH mmWave eCPRI eCPRI DU © 2019 Juniper Networks LTE-A/5G NSA MOBILE TRANSPORT - TODAY Controller / Orchestrator MEC MEC BNG-C / AGF-C CRAN vEPC 5GC vCCAP Mobile Device eNodeB (3G, 4G) Access Pre-Agg BNG-U Service Edge/Core Aggregation BNG EPC BW Slice 10G N x 10G Video gNB NSA 25G 100G N x 100G N x 100G N x 25G Cache Latency Slice Cloud Services / • VPNs • Internet Internet • Hybrid Clouds • Multi Clouds BNG Enterprise BNG-U Fixed Mobile < 150us, +/- 65ns G.8275.1 < 10ms, +/- 1.5us Infra L2 / L3 L3 • UHD Stream • Online Gaming Segment Routing / SR-TE • Internet Residential Service EVPN (L2 and L3) © 2019 Juniper Networks JUNIPER SOLUTIONS IN 5G Coverage Capability Capacity ✓Transport ✓Service Differentiation ✓ Platform (Transport) •Metro Fabric • Network Slicing • Temperature Hardened High •Fronthaul Capacity (300G+) access and Xhaul Aggregation (2.4T+) solution. ✓Timing Synchronization •FMC/FWA • Interface type support for 25GE, •Highly Scalable Edge/Core • Tight TAE budget 100GE in Access. • Strict High Availability • Support for 400GE uplinks. ✓Virtualization • Low Latency switching for Fronthaul. •Edge Cloud/Telco ✓Automation • Highly Scaling Timing support. Cloud/MultiCloud • ZTD • Scalable Backhaul Architecture, •SDWAN • Telemetry/Netconf/YANG • Highly Scalable Edge features. • Scale-up/Scale-out Core • Healthbot ✓Data Center ✓Security • Network Management •Mobile/IOT Security • ToR/EoR Metro Aggregation. • Scale-up/Scale-out DC Fabric. •Edge Cloud Security •Internet/Roaming Security. ✓Security •DDoS Protection (JNPR+Corero) • Service Provider Managed Service Enterprise Security Solution at scale. © 2019 Juniper Networks FLEXIBILITY FOR SP INFRASTRUCTURE TRANSFORMATION Juniper: Leadership Without Technology Religion Flexible Silicon Options Flexible Junos Options Standalone Junos SW or or + 3rd-Party Custom Silicon Merchant Silicon Penta Qumran 2 White Box HW Triton Jericho 2 Integrated HW + SW © 2019 Juniper Networks 21 CONVERGED METRO ETHERENT PORTFOLIO JUNOS, ZTD, Automation, Telemetry, Analytics, Multilayer Control & FCAPS SR-MPLS (SRo4, SRo6), Flex-Algo, PCEP, BGP-LS, eODN, IPVPN/EVPN ACCESS PRE-AGGREGATION AGGREGATION EDGE CORE MX240 MX104 ACX500 ACX1100 MX960 2016 PTX3000 UNIVERSAL ACX2200 ACCESS AND ACX5096 MX10003 AGGREGATION ACX5048 ACX5448 2018H2 ACX6360 MX2008 METRO ACX5448-M PTX10008 ACX5448-D FABRIC ACX710 ACX753 2019H2 100/400GE Optimized - New platforms (shipping) - New upcoming platforms. 2020H2 10/25/50/400GE Optimized - Future concepts © 2019 Juniper Networks TIMING & SYNC © 2019 Juniper Networks 23 SYNCHRONIZATION & TIMING BECOMES CRITICAL EPC DU CU RU Fronthaul Midhaul Backhaul Edge/Core 5GC 5GNR Latency 150us 4ms 10ms +/- 65ns +/- 65ns +/- 1.3us TE budget 5G TDD demands Strict Timing • +/- 1.5us • Strict Hold-over timing (In Hours) Stringent Timing in New architectures • Fronthaul - +/- 130ns (Required for CA, CoMP,etc.,) Following specifications are critical for 5G Timing • Class B or C Devices • PTP and SyncE Support • G.8275.1 and G.8275.2 Telecom Profile © 2019 Juniper Networks OPTION 1: FTS & DISTRIBUTED GRANDMASTERS PTP Telecom profile: G.8275.1 ▪ GNSS on all, or at least multiple, cell site in a metro area. ▪ G.8275.1 FTS with T-BC in all backhaul nodes within the metro area for redundancy G.8275.1 FTS with No timing ▪ No timing requirement in the core, but still vulnerable to T-BC in backhaul GNSS jamming of an entire region. nodes requirement in the core Distributed grandmasters at T-BC (some of the) sites in T-BC the metro or backhaul network. T-BC L2 Broadcast (G.8275.1) No timing deployed in the core © 2019 Juniper Networks 25 OPTION 2: FTS & CENTRALIZED GRANDMASTERS PTP Telecom profile: G.8275.1 ▪ Centralized GNSS on core or main PE sites Every node in Sync ▪ G.8275.1 FTS with T-BC in all nodes along the sync distribution path needs to chain, generally including core nodes support boundary (T-BC) Centralized ▪ No need to deploy GNSS on the cell sites, saving cost clock Grandmaste and operational complexity and inherent protection – no exceptions! against GNSS jamming r T-BC T-BC T-GM T-BC T-BC or No GNSS required on cell sites T-BC T-BC T-BC PRTC L2 Broadcast (G.8275.1) © 2019 Juniper Networks 26 OPTION 3: ASSISTED PARTIAL TIMING SUPPORT PTP Telecom profile: G.8275.2 ▪ GNSS on all cell sites PTP provides better hold- ▪ G.8275.2 A-PTS in the backhaul nodes to provide for over incase of GNSS failure, GNSS redundancy and hold-over but is generally not used as Centralized ▪ Part of the network can be PTP unaware, e.g. for leased the primary reference clock Grandmaste lines or brownfield deployments with older platforms r Equipment or Distributed without PTP support GNNS at cell sites. PRTC L3 Unicast (G.8275.2) © 2019 Juniper Networks 27 OPTION 4: PARTIAL TIMING SUPPORT (PTS) PTP Telecom profile: G.8275.2 ▪ No GNSS in the access domain ▪ G.8275.2 PTS in the backhaul nodes ▪ Part of the network can be PTP unaware, e.g. for leased Network nodes should have lines or brownfield deployments QoS configured and ensure ▪ Only very few hops possible with acceptable sync low network load to avoid performance further PTP accuracy reduction due to buffering Equipment Distributed without PTP Grandmaster in the support access domain, only a few hops are possible PRTC L3 Unicast (G.8275.2) © 2019 Juniper Networks 28 CONCLUSIONS Different architecture choices for timing & synchronization There’s not a single ”right” way to do sync, depends on customer preferences and installed base Options Pros & Cons GNSS deployed at every cell site ▪ High cost & complexity, but best accuracy and stability. ▪ GNSS might not always be available (e.g.