docsis 3.1 and distributed...
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CPE
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CPEEdge
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CPENT
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CPE
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Traditional services
DVC IPTV VoD Voice Data
Optical Splitter
Coax Cabling
Coax Cabling
Coax Cabling
Coax Cabling
Coax Cabling
Coax Cabling
PON
AON
Remote PHY/D-CCAP
DOCSIS
AON/PON
V-CCAP
Signal Amplifier
Combiner
OLT / CCAP
Analog Fibre Cabling
Fibre Cabling
Downstream
Upstream
Fibre Cabling
Fibre Cabling
CCAP
OLT / Access Switch
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CPENT
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CPE
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Downstream
UpstreamCABLE ACCESS NETWORK
FTTH ACCESS NETWORK
DISTRIBUTED ACCESS NETWORK
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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
FTTH
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
CCAP
OLT
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
CCAP
DVB
FM
IPTV
VoD
Voice
Data
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Combiner
Digital Optical Transmission
CCAP
DVB
FM
IPTV
VoD
Voice
Data
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OLT /CCAP
IPTV
VoD
Voice
Data
OLT /CCAP
IPTV
VoD
INTERNET
PACKETCABLEPROVISIONING
POLICY
CCAP RCN
VIDEO/TV CABLE-MODEM
HEADEND ACCESS
CMTS
EQAM
DOCSISSignaling
Remote PHY Signaling:DEPUI/UEPI over L2 IP-VPN
Data
Data
Linear digital TV
Linear digital TV
FibreEthernet/PON
INTERNET
PACKETCABLE
DCN
VIDEO/TV CABLE-MODEM
HEADEND ACCESS
Data
IP TVFibre (digital
Ethernet/PON)
DOCSISSignaling
EQAM
Linear digital TV
PROVISIONINGPOLICY
V-CCAPCONTROLLERETCABLEBLE
StandardAcces Switch
Data & IP TV
DCN Management
DCN Management
Ethe
rnet
/P
ON
INTERNET
PACKETCABLEPROVISIONING
POLICY
OLT CMC
VIDEO/TV CABLE-MODEM
HEADEND ACCESS
DCN Management
CMTS
Data
IP TVFibre
Ethernet/PON
CMTS
EQAM
Ethe
rnet
/PO
NC
MC
Man
agem
ent
Data & IP TV
DOCSISSignaling
Voice
Data
... 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
f
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
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