docsis 3.1 and distributed...

EdgeRouterONTOLT

CPEEdge

RouterONTOLT

EdgeRouterONTOLT

Traditional services

DVC IPTV VoD Voice Data

Optical Splitter

Coax Cabling

Remote PHY/D-CCAP

DOCSIS

AON/PON

V-CCAP

Signal Amplifier

Combiner

OLT / CCAP

Analog Fibre Cabling

Fibre Cabling

Downstream

Upstream

Fibre Cabling

OLT / Access Switch

EdgeRouterONTOLT

Downstream

UpstreamCABLE ACCESS NETWORK

FTTH ACCESS NETWORK

DISTRIBUTED ACCESS NETWORK

EdgeRouterONTOLT

IP BACKBONE

DOCSIS 3.0 vs DOCSIS 3.1

Evolution of Headend Equipment

Remote PHY

V-CCAP

D-CMTS/D-CCAP

Network Evolution Scenarios

Different Distributed Approaches

AON Active Optical Network

BSoD Business Services over DOCSIS

CCAP Converged Cable Access Platform

CM Cable Modem

CMC Coax Media Converter

CMTS Cable Modem Termination System

CPE Customer Premises Equipment

D-CCAP Distributed CCAP

D-CMTS Distributed CMTS

DCN Distributed CCAP Node

DCA Distributed CCAP Architectures

DEPI Downsream External PHY Interface

DOCSIS Data Over Cable Service Interface Specification

DPoE DOCSIS Provisioning of EPON (Ethernet Passive Optical Network)

DVB Digital Video Broadcast

EPON Ethernet Passive Optical Network

EQAM Edge QAM

HFC Hybrid Fibre-Coaxial

HSI High-Speed Internet

IPTV IP Television

L2 Layer 2

L2VPN Layer 2 Virtual Private Network

L3 Layer 3

LAN Local Area Network

MAC Media Access Control

MPTS Multi-Program Transport Stream

MTA Multimedia Terminal Adapter

OLT Optical Line Termination

ONU Optical Network Unit

OFDM Orthogonal Frequency-Division Multiplexing

OFDMA Orthogonal Frequency-Division Multiple Access

OSS Operations Support System

OTT Over-the-Top

P2MP Point-to-Multipoint Communication

PON Passive Optical Network

QAM Quadrature Amplitude Modulation

QPSK Quadrature Phase Shift Keying

RCN Remote CCAP Node

RPD Remote PHY Device

RFoG Radio Frequency over Glass

RS Router Solicitation

SC Subscriber Connector

SDV Switched Digital Video

SIP Session Initiation Protocol

SPTS Single Program Transport Stream

SSM Source-Specific Multicast

STB Set-Top Box

UEPI Upstream External PHY Interface

UML Unified Modeling Language

V-CCAP Virtual CCAP

VBR Variable Bit Rate

VOD Video on Demand

VoIP Voice over IP

XML Extensible Markup Language

Abbreviations and Acronyms

Standard Centralised DOCSIS 3.0 Network

Bandwidths and Technologies over Time

1 Kbps

1988 1998 2008 20182013

100 Mbps

1 Gbps

10 Gbps

10 Mbps

10 Kbps

100 Kbps

1 Mbps

DOCSIS 3.0

DOCSIS 3.1

LTE 4G+

FTTH 10 G

DOCSIS 1/2

VDSL 2

ADSL 2

ADSL Mobile

Fixed Broadband

9.6 Kbps

256 Kbps

10 Mbps

100 Mbps

300 Mbps

Broadband

CMTS UniversalisationStandardisation

and Virtualisation

Universal Access System

Standard Switch

Specification DOCSIS 3.0 DOCSIS 3.1

Modulation technology Single-carrier quadrature amplitude modulation (QAM) Multi-carrier orthogonal frequency division multiplexing (OFDM)

FEC mode Reed-Solomon-Code (RS Code) with a code gain of about 6 dB Low density parity check (LDPC) with a code gain of about 12 dB

Modulation order Upstream: 16/32/64/256 QAM Downstream: 64/256 QAM

Upstream: ≤ 2k QAM Downstream: ≤ 4k QAM

Modulation profile Single Modulation Multiple modulation profiles (MMP)

Downstream channel size US: 6 MHz, EU: 8 MHz Up to 192 MHz

Upstream channel size 6 MHz Up to 96 MHz

Combiner

EdgeRouterONTOLT

Combiner

Digital Optical Transmission

EdgeRouterONTOLT

OLT /CCAP

INTERNET

PACKETCABLEPROVISIONING

POLICY

CCAP RCN

VIDEO/TV CABLE-MODEM

HEADEND ACCESS

DOCSISSignaling

Remote PHY Signaling:DEPUI/UEPI over L2 IP-VPN

Linear digital TV

FibreEthernet/PON

INTERNET

PACKETCABLE

HEADEND ACCESS

IP TVFibre (digital

Ethernet/PON)

DOCSISSignaling

Linear digital TV

PROVISIONINGPOLICY

V-CCAPCONTROLLERETCABLEBLE

StandardAcces Switch

Data & IP TV

DCN Management

INTERNET

PACKETCABLEPROVISIONING

POLICY

OLT CMC

HEADEND ACCESS

DCN Management

IP TVFibre

Ethernet/PON

Data & IP TV

DOCSISSignaling

... to Centralised DOCSIS 3.1

...to Distributed Architecture

...and finally to FTTH

Migration...

DOCSIS 3.0

65 MHz 1.0 GHz

100 MHz

> 200 MHz

1.2 GHz

1.8 GHz

DOCSIS 3.1

f6/8 MHz

Downstream

Downstream presentSC-QAM modulated

OFDM modulated orthogonal carriers

1.6 MHz / 3.2 MHz / 6.4 MHz6 MHz (US-DOCSIS) /8 MHz (Euro-DOCSIS)

Bonding multiple channels

OFDM Block ≤ 192 MHz

near term

future

Downstream

Upstream

Upstream Downstream

96 MHz 192 MHz

Upstream Downstream

Spectrum Comparison Downstream ModulationBandwidth of a Single Channel

• Pure Ethernet or PON connection between CMTS/CCAP platform and RCN

• DEPI/UEP protocol runs over Ethernet/PON link in order to control the RCN

• RCN contains only HF modulators and demodulators for the DOCSIS part

• Central management in CMTS/CCAP

• DCN is connected to standard IP network (Ethernet or PON)

• DOCSIS/CCAP specific functionalities are generated in DCN

• Central management in cloud or local servers

• IP streams for specific services such as TV or radio are generated in the cloud or on local systems

• Pure Ethernet or PON connection between OLT and CMC

• DOCSIS /CCAP specific functionalities are generated in CMC

• Central management in OLT

Multipurpose and Multistandard Access through Distributed Architecture

Business

Hotspot/WiFi

Small Cell

Residential

InternetBroadcastVoDInteractive TVVoice

Mobility for CustomersMobile Access Wholesale

DataVoice

DistributedNode

present near term futuret (years)

Upgrade spectrum of entire network

Migrate entire network

Upgrade to digital optics, replace node, optionally upgrade spectrum of RF cabling

Replace vertical cabling and optionally node

Downstream

Upstream

DOCSIS 3.1 AND DISTRIBUTED ARCHITECTURESCONSULTING SYSTEMS SERVICES

www.broadbandnetworks.ch

docsis 3.1 and distributed...

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