Harmonic Confidential Integration of QAMs into the CCAP Solution July 2011 Asaf Matatyaou Director, Cable Edge & Access Solutions The targeted timeframes, products, features and/or functionality described herein are estimates only, shall not be relied on, may be changed at any time at Harmonic's sole discretion, and shall not be interpreted as an obligation or deliverable for current or future orders, and shall not be incorporated into any contract. Obligations and deliverables are defined on an independent basis pursuant to the individual contract terms and will default to current performance capabilities. Nothing herein shall create or impose any obligation on the part of Harmonic.
Transcript
Harmonic Confidential
Integration of QAMs into the CCAP SolutionJuly 2011
The targeted timeframes, products, features and/or functionality described herein are estimates only, shall not be relied on, may be changed at any time at Harmonic's sole discretion, and shall not be interpreted as an obligation or deliverable for current or future orders, and shall not be incorporated into any contract. Obligations and deliverables are defined on an independent basis pursuant to the individual contract terms and will default to current performance capabilities. Nothing herein shall create or impose any obligation on the part of Harmonic.
Harmonic Confidential
Agenda
EdgeQAM IntroductionEdgeQAM Overview in CCAPDelivering Video Services TodayMigrating to Downstream-Only CCAP ServicesProviding Full CCAP Services
EdgeQAM Introduction
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What’s an EdgeQAM?
Video EdgeQAMOne or more ingress interfaces (typically GbE)Accepting MPTS or SPTS inputs via UDP/IP from SDV, VOD or Linear IP Broadcast sourcesMultiplexes input programs into an MPTS that is modulated and transmittedMultiple RF QAM egress interfaces
Universal EdgeQAMVideo EdgeQAM plus the capability to deliver DOCSIS data in an M-CMTS architectureMust be paired with an M-CMTS core and DOCSIS Timing Server (DTI)
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What’s an EdgeQAM?A STB client can request video streams from the SM, which acquires the necessary resources for delivery
Manages input/output EQAM resources
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M-CMTS Reference Architecture
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CCAP Data Reference Architecture
CCAP – EdgeQAM Overview
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CCAP – EdgeQAM OverviewVideo Applications and Protocols
Supported protocols−Linear broadcast−SDV−VOD−DOCSIS for IPTV
Individual QAM channels could be reserved for one of these services or a single narrowcast QAM channel may support multiple protocolsFunctioning as a Universal Edge QAM in an M-CMTS configurationAdhere to the NGOD requirements
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CCAP – EdgeQAM OverviewPerformance and Capacity
Some performance and capacity requirements are spelled outPerformance specifications examples−Session setup time to provision any stream MUST be less than
0.5 seconds−SDV: 40 service groups MUST support minimum sustained rate
of 480 session changes per second−VOD: Minimum rate of 40 sessions per hour per narrowcast
QAM channel
Capacity specifications examples−Linear broadcast: minimum of 20 programs (MPTS or SPTS)
into a single MPTS−MPEG: Minimum of 127 MPEG programs on any individual
QAM, with typical being 10 – 15 MPEG programs−MPEG: Minimum of 8 PIDs per program; 256 PIDs per QAM
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CCAP – EdgeQAM OverviewDensity and QAM Replication
Density (HW support)−Minimum of 64 narrowcast QAMs per RF port, licensable from
32 QAMs, in steps of 16 QAMs, to a max supportable by specific hardware
−Minimum of 96 broadcast QAMs, licensable from 16 QAMs, in steps of 16 QAMs, to a max of 96 broadcast QAMs
−Minimum of 2.5 RF service groups per RU (e.g. 40 SGs for 16 RU)
QAM Replication−Create service groups on a decoupled, service-by-service basis−Handle service group inequalities by sharing a set of SDV or
VOD QAMs to form service groups with unique sets of HSD QAMs
−Replicate narrowcast video (SDV and VOD) QAMs across multiple ports on a given line card
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Typical Combining Network Today
Combining
DataSG1
NODE 318WAY
Broadcast Digital and Analog
OOB
DOCSISDownStreams
VODQAMs
SDVQAMs
8-WayN’cast
VideoSG1
8-WayN’cast
VideoSGm
DataSG1
8-WayN’cast
VideoSG1
8-WayN’cast
VideoSGm
Spliting
NODE 338WAY
NODE 328WAY
NODE 358WAY
NODE 348WAY
DataSG2
DataSGn-1
DataSGn-1
DataSGn
DataSG2
DataSGn
Vid
eo S
G1 Dat
a S
G1
Dat
a S
G2
Vid
eo S
Gm
Da
ta S
Gn
-1D
ata
SG
nTypically every Service group
has a dedicated set of
combiner / splitter
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QAM Replication Example
NODE 318WAY
Broadcast Digital and Analog
OOB
DOCSIS &VOD &SDV
QAMs
Spliting
NODE 338WAY
NODE 328WAY
NODE 358WAY
NODE 348WAY
`
How Does it work:· Each RF port feeds one optical transmitter· Service Groups Mapping is managed by
the EdgeQAM (Instead of actual wiring)· Duplicating QAMs to multiple ports
according to the Data and Video service groups Mapping
Advantages:· Minimal combining· Lower cost per QAM· Less QAM RF ports· Easy to manage
Vid
eo
SG
1 Da
ta S
G1
Da
ta S
G2
Vid
eo
SG
m
Da
ta S
Gn
-1D
ata
SG
n
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CCAP Video Headend Reference Architecture
CCAP and MHA are based on the identicalVideo Headend Reference Architecture
CCAP MHA
Path to CCAP
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Migrating from Today’s Dense EdgeQAMs to CCAP
Today’s capacity needs and near-term growth are met with existing Dense EdgeQAM platforms−For example: 324 QAMs/RU; 9 ports/RUAs capacity grows beyond existing EdgeQAM or CMTS capabilities, migrate to Downstream-Only CCAP chassisDownstream-Only CCAP chassis is HW-capable of achieving full CCAP functionality, enabling convergence of video and data in a single platform
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CCAP-Ready Dense EdgeQAMOperation Focus− Modular Design, Hot swappable components − Reliability, system performance over time− SW suite for day-2-day operation− Universal EQAM platform for VOD, SDV, M-CMTS, Broadcast
CCAP Feature Support− Highest density, Lowest power per QAM− Frequency Agility, Flexible placement of individual QAMs − Flexible price, Pay as you grow− Most cost-effective solution
Advanced software− Rich feature set & Intuitive configuration
What doesn’t it provide−A platform to add future upstream services−High availability (N+1 LCs)
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Downstream-Only CCAP Platform
New packaging of existing platformsChassis meets CCAP High Availability/Redundancy requirementsDesigned for low cost and higher capacity of QAMsIntegrating existing EdgeQAM and M-CMTS functionality into CCAP-capable platform
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Downstream-Only CCAP Services
Application delivery of SDV, VOD, M-CMTS, Cable IPTV and Broadcast servicesLeverages the identical Video Headend Reference Architecture utilized in both today’s EdgeQAM products and the CCAP specificationsEnables EdgeQAM and M-CMTS service growth beyond existing capacity at platform introductionCapable of complete data and video service convergence as Upstream Line-Card and DOCSIS applications are added
Leverages low-cost, high-density chassis− Single chassis with converged applications saves rack space
Any service (data or video) on any QAM− Hedge against traditional video growth versus Video over IP growth
Service Group growth flexibility− Internal replication of SGs allows for different sized HSD and
VOD/SDV SGs
A single platform that allows for DS and US port growth specific to an operator’s needs− Fill a chassis entirely with Downstream Line-Cards− Add Upstream Line-Cards as needed, proportional to data service
needs− Continues with the “pay-as-you-grow” modelLeverages: chassis-based CCAP-capable EdgeQAM & M-CMTS services
Provides: Upstream Line-Card and DOCSIS applications
The targeted timeframes, products, features and/or functionality described herein are estimates only, shall not be relied on, may be changed at any time at Harmonic's sole discretion, and shall not be interpreted as an obligation or deliverable for current or future orders, and shall not be incorporated into any contract. Obligations and deliverables are defined on an independent basis pursuant to the individual contract terms and will default to current performance capabilities. Nothing herein shall create or impose any obligation on the part of Harmonic.
CCAPDeployment Scenerios
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CCAP Deployment
Convergence of data and video into a low-cost, small deviceFlexibility in deployment, by matching multiple Access Shelves with a single Edge Router−Possibly at a centralized Headend−Fits perfectly into a distributed architecture, locating
Access Shelves at hubs and OTNs which are fed from a centralized Headend
Dramatic reduction in rack space and power consumption
Application: OTN / Hub consolidationBefore After
Summary
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Summary
Today: Grow QAM capacity for immediate service growth− Use today’s dense EdgeQAM platforms
− VOD, SDV, M-CMTS, IPTV and Broadcast deployments
− Highly dense solution (both QAM/RU and port/RU)
− Rich SW solution
− Proven high reliability
Next: Extend QAM Capacity in a HA, chassis-based, full-CCAP-capable platform− Low cost, small size
− Repackaging of existing CCAP-ready features with the roadmap for tomorrow
Finally: Introduce data-based services in a single platform− Low-cost data and video QAMs
