Evolution of HFC Network

Transcription

1 4º Workshop AMX Brasil Panel B2 Evolution of HFC Network Hugo Amaral Ramos - CALA CTO

2 Fiber to the Home is the right direction to go

3 Http All IP Video is the Right Way to Go http All IP

4 What is Driving this Incredible Growth? Used to be THE NEXT THREE YEARS: Next 3y IoT 3 to 5 years Over The Top & MSO-Managed IP Video: More Sessions at higher resolution Unicast video replacing Broadcast IoT: Upstream Transmissions of many surveillance IP video streams per home 2x1080i60 = 18 The Simulcast Bubble : Simultaneous Transmissions of TV channels in QAM and IP video during the IP video transition 2x4Kp60 = 40 Service Snappiness : Desire for rapid response times Marketing Pressures: The need to respond to higher PON bandwidth offerings 2x8Kp120 = 180 Copyright 2016 ARRIS Enterprises, Inc. All rights reserved. Service Snapness Virtual Reality Immersive Video UHD predicted to be +500Mbps 4

5 Traffic Engineering The Million Dollar Question How much bandwidth capacity is needed to provide good QoE to the subscribers within a Service Group? This question has been asked & re-asked with every generation of HSD on the plant 1999: Web Browsing (Basic) 2001: VoIP & D1.1 Service Flow QoE (Tmax & Priority) 2003: Peer-to-peer (Napster) 2006: OTT IP Video Streaming (YouTube) 2008: D3.0 (Channel Bonding) 2009 & 2011 & 2013: MSO-sourced IP Video (Multicast) 2014: D3.1 Full-Spectrum & OFDM (4K Video) 2016: 1 Gbps Downstreams (New Services w/ very high Tmax) Many Rule-of-Thumb formulae have been used to answer that question in the past BW Capacity > (Nsub)*(Tavg) BW Capacity > 2*(Tmax) BW Capacity > 3*(Tmax) Perform Node Split when Avg BW > 0.7*(BW Capacity) 6

6 Internet Maximum Service Tier Offered (Tmax) Nielsen's Law of Internet Bandwidth Downstream Tmax BW 20 Gbps Gbps Gbps 2 Gbps Gbps Nielsen's Law of Internet bandwidth states that: a high-end user's connection speed grows by 50% per year Source: Downstream Tmax = 1 Gbps ( ), 2 Gbps ( ), 10 Gbps ( ) Upstream Tmax = 0.5 Gbps ( ), 1 Gbps ( ), 5 Gbps ( ) 7

7 Recent MSO Avg BW Traffic Trends DS Tavg passes 1Mbps in 2017 DS Tavg CAGR below 40% Not quite doubling every other year US Tavg almost 100Kbps in 2017 US Tavg CAGR below 20% Doubling every ~4-5 years For Network Capacity planning, typically use 20% to double every 4 years ARRIS Confidential and Restricted 8

8 Historic Data Some Recent DS:US Average BW Ratio Trends Today, Most MSOs DS:US Avg BW Ratios are in 8:1 to 16:1 range DS BW continues to grow faster than US, so those Ratios will continue to rise in the near future ARRIS Confidential and Restricted 9

9 Example Upstream Changes New Services Impact 10

10 Network Evolution Needs to Consider Not anymore only Bandwidth.but also Latency UX Architecture Availability Affordability $ Converge in Infrastructure and Function 11

11 Converge In Infrastructure HFC - Hybrid Fiber Coaxial CENTRAL OFFICE Fiber Fiber Node Wireless "HFW - Hybrid Fiber Wireless" CENTRAL OFFICE Fiber 12

12 Converge In Infrastructure CENTRAL OFFICE \ Fiber Fiber Node Wireless 13

13 One Example of Convergent Study HFC 10Gbps Eth 10Gbps Eth Central Office IP-RAN NODE-B N+X N+0 #1 CMTS + Switch Use Existing IP infra with QoS RPD AMP #2 CMTS + Switch Use Existing IP infra with QoS RPD #3 CMTS + Switch Use Existing IP infra with QoS RPD + TX/RX AM Node AMP #4 CMTS + Switch Use Existing IP infra with QoS RPD + TX/RX AM Node #5 CMTS + Switch Use Existing IP infra with QoS RPD + AGileMax FTTLA #6 Switch Use Existing IP infra with QoS Switch + OLT/P2P RMACPHY #7 CMTS + Switch Use Existing IP infra with QoS Node to W 14

14 Demarcation of the "Hybrid Fiber Wireless" Indoor Outdoor Whole city areas covered with unlicensed & shared spectrum Many networks operated by public and/or private entities A single wireless solution via federation Countless IoT use cases 15

15 Important Concepts And Mix and Match Options, options and options! Incremental CAPEX Umbrella Standards Backwards Compatible Copyright 2016 ARRIS Enterprises, Inc. All rights reserved. Operational Efficiency 16

16 So Many Options. Bifurcation of Last-Mile HFC Options in the Future Year High SLA BW (Gbps) ,000 Less changes req d (BAU) ecore Low Rackspace in HE Low Power in HE More Lambdas on Fiber RPHY Med. Rackspace in HE Low Power in HE More Lambdas on Fiber Simpler Mgmt with SDN Elasticity & Feature Velocity & Lower Cost CAA Based (I-CCAP) DAA Based (ecore) DAA Based (vcore) FTTN (Node+X) FTTLA (Node+0) FTTN FTTLA FTTT FTTH FTTT FTTH FTTN (Node+X) (Node+0) FTTLA (Node+0) FTTT FTTH FTTN HFC FTTLA HFC FTTT HFC (or MoCA) FTTH RFoG FTTN HFC FTTLA HFC FTTT HFC (or MoCA) FTTH RFoG FTTN HFC FTTLA HFC FTTT HFC (or MoCA) FTTH RFoG How Will Operators Provide These High BWs over HFC In the Future? LESS: BW/sub Cost Changes I-CCAP MORE: BW/sub Cost Changes LESS: BW/sub Cost Changes MORE: BW/sub Cost Changes LESS: BW/sub Cost Changes Elasticity vcore MORE: BW/sub Cost Changes Elasticity RPHY 17

17 SDN and NFV Concepts in Cable Evolution CENTRAL OFFICE Layer 3 and above MAC NFV Fiber PHY RPHY Layer 3 and above MAC PHY CENTRAL OFFICE Layer 3 and above SDN Appliance MAC PHY Fiber RMACPHY Copyright 2015 ARRIS Enterprises, Inc. All rights reserved. 18

18 CORD Central Office Re-architected as a Data Center Cable Access source: 19

19 Crossover Full Duplex (FDX) Augmenting the Upstream for Symmetrical Service 5 5 US DS Spectrum US Spectrum DS Spectrum Freq Freq 10G DS x 5G US is the target BW 684 MHz US versus 42 or 85 MHz today The biggest change in FDX is the expanded upstream spectrum Optimized for Fiber Deep (Node+0) with Remote PHY Nodes Currently FDX is in a pre-standards state Available in ~late early 2019 Copyright 2015 ARRIS Enterprises, Inc. All rights reserved. ARRIS Confidential 20

20 Extended Spectrum Spectral Utilization & Bandwidths 1.5 Gbps ~15 Gbps 35 to 50 Gbps MHZ MHZ MHZ US 3.1 DS Extended Spectrum DS! Spectrum Normal 3.1 Modems Future Extended Spectrum Modems With enormous possibilities with FDX 21

21 Can We Extend to More Bandwidth? Use Fiber To The Tap (FTTT) or Fiber To The Curb (FTTC) ARRIS E6000 CCAP Optical Tx/Rx Extend the Spectrum of 3.1 OFDM to 6 GHz or higher ARRIS OBI-Free RFoG (HPON AgileMax) Gets 50+ Gbps, up to 200Gbps to the Home ARRIS 6 GHz Fiber Node Fiber To The Tap 45dB dbmv, SNR = 35dB ~150 coax drop Fiber To The Curb RFoG Homes or PON Homes 22

22 Muito Obrigado!!! Hugo Amaral Ramos