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Comcast Proprietary and Confidential Next Gen Access Architecture July, 2011 CCAP (CMAP) Program at Comcast SCTE 2011.

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Presentation on theme: "Comcast Proprietary and Confidential Next Gen Access Architecture July, 2011 CCAP (CMAP) Program at Comcast SCTE 2011."— Presentation transcript:

1 Comcast Proprietary and Confidential Next Gen Access Architecture July, 2011 CCAP (CMAP) Program at Comcast SCTE 2011

2 Comcast Proprietary and Confidential Why would MSOs need CCAP? Engineering: Capacity and efficiency, frees significant HE capacity 50% space savings with 4x capacity 60% power savings plus less cooling Improve existing UPS and battery backup performance Architecture: Simplicity and flexibility is already a key driver Minimum, simplified combining wiring Full-spectrum, MPEG/DOCSIS QAMs, easier migration to ADS Future proof, single access platform Purchasing: Cost will quickly become a big driver CMTS 4-6 DOCSIS channel cost equals CCAP 16 DOCSIS + 16 MPEG Channels !! Operations: Reliability and manageability will also drive adoption Fully redundant (N+1 LC & 1+1 Commons) Configuration change between QAM types vs. equipment swap-out Much shorter maintenance window (ISSU) Far less equipment to manage and maintain 2

3 Comcast Proprietary and Confidential Top view of headend rack line-up Each box represents a rack Example for illustrative purposes Top view of headend rack line-up Each box represents a rack Example for illustrative purposes CCAP space efficiency example Todays HE: 16 NC QAMs per SG Digital Broadcast VOD CMTS Combiner & Amps Lasers & Receivers SDV After CCAP: 64 NC QAMs per SG NOTES: Deployment example assuming 40K homes passed, 200 nodes, 140 D3 HSD service groups at 16 SG/chassis, 120 VOD 6QAMs/SG and 4 QAMs/RF Port, and same SDV service groups. Larger or smaller headends would scale accordingly, but savings will be proportional. 1/2Space 4x Capacity 3 CCAP eliminates the need for headend expansions

4 Comcast Proprietary and Confidential CCAP yearly power savings in a typical headend 4 CCAP saves 60% of power, not including cooling energy savings! UPS and battery requirements are also reduced – existing capacity will last considerably longer when power is interrupted.

5 Comcast Proprietary and Confidential Integrated CCAP CCAP in a nutshell CCAP DS Port Assignments DS RF Port 32/48/64 NC QAMs + 96 BC QAMs HSD CDV VOD nDVR SDV DOCSIS MPEG TS Simplify, and eventually eliminate RF Combining AVS Broadc ast US DS Legacy OOB Narrowcast & Broadcast Digital Services CCAP Analog Split Legacy OOB Modular CCAP Converged Cable Access Platform Combines the functions of the CMTS and Edge QAM Implements all narrowcast and broadcast QAMs

6 Comcast Proprietary and Confidential Operational features of CCAP 6 Open decryption/encryption interfaces

7 Comcast Proprietary and Confidential Integrated vs. Modular CCAP components 7 Each approach has pros and cons Similar boxes for both HE Router ICCAP I-CCAP Single CCAP Vendor IP Routing HE Router / M-CCAP PS ICCAP M-CCAP AS Best-in-Class Expertise PASI Sub & Flow Management

8 Comcast Proprietary and Confidential CCAP use cases examples (two of several) 8 Where I-CMTS exists US DS Today Future HE Router Bcast VOD SDV UR I-CMTS US HE Router UR I-CCAP US DS HE Router BCast VOD SDV M-CMTS Core UR UEQAM USDS HE Router M-CMTS Core UR M-CCAP AS in DS mode M-CCAP AS in DS mode DS HE Router / M-CCAP PS UR M-CCAP AS M-CCAP AS US DS US HE Router UR I-CCAP DS Add density with CCAP Access Shelf in DS-only mode Shorter Term Longer Term Options Migrate to I-CCAP & relocate CCAP-AS Or, add CCAP PS Existing Router w/PS SW Add US LCs …M-CCAP For M-CMTS markets Eventually I-CCAP or…

9 Comcast Proprietary and Confidential CCAP migration options 9 Capacity Augment New Service Deployment Infrastructure Upgrade Drop in CCAP as SGs are split or EQAMs/CMTSs are added Keep current equipment and eventually move to other locations Add CCAP for new service Maintain existing equipment for existing services Eventually integrate other services into CCAP Add CCAPs for all SGs in key HEs Independent of services Existing equipment relocated Broadcast and OOB SDV/VOD EQAMs CMTSs Combiner Lasers and Receivers Existing SGsNew SGs CCAP Existing SGs CCAP for New Service Broadcast and OOB SDV/VOD EQAMs CMTSs Combiner Lasers and Receivers Existing SGs CCAP Broadcast and OOB Combiner Lasers and Receivers

10 Comcast Proprietary and Confidential Preparing for CCAP 10 Work underway in the many areas at Comcast: Systems: configuration, monitoring, logging, fault detection, trouble management, inventory, databases, etc. Operations: changes to deploy and manage single device Testing: process (who/how/when and what order), and edge QAM, DRFI performance, new features, and new services (RS-DVR, AVS) Deployment planning: Network models for system types: very large to very small HEs Trials starting in 2011: operational readiness focus, not equipment New combiner equipment: optimized for CCAP and remaining inputs Working with Motorola and Cisco on encryption licensing model and ECMG implementation plan

11 Comcast Proprietary and Confidential CCAP-like network to understand technical/ops issues and prepare Operational processes, tools, network engineering, etc. The trial is about MSO operations, NOT to test equipment The scope will be minimal but meaningful (few service groups) CCAP operational readiness trial – concept diagram 11 DS US VOD SDV BCAST OTHER QAMs DTA 2-4 ANALOG TEST ~120 All services M-CMTS Core M-CCAP AS in DS-only mode M-CCAP AS in DS-only mode Combiner Collaborative effort with Cox and Rogers

12 Comcast Proprietary and Confidential Completing CCAP specifications Large team of industry experts developing CCAP specs Key engineers and architects from all EQAM and CMTS vendors Agreements with Cablevision, Charter, Cox, LGI/UPC, NCTC, Rogers, and others, plus working with TWC on common requirements Direct support from CableLabs; now working on CL CCAP Specs Cable Europe Labs representing the 15 largest MSOs in Europe MSO specification documents: Phase 1 completed in March 2010 (focus on HW & Functions) Phase 2 completed in July 2010 (added Config & Mgmt and PASI) Phase 3 completed in Nov (expanded all specs; wrote CL TR) Phase 4 in progress, adding adv. Functions, ATP and updated CL TR (target Sept. 11) –CableLabs working on CCAP OSSI and PASI specs –Changed name to converge TWC and Comcast efforts 12

13 Comcast Proprietary and Confidential Summary and conclusions CCAP Platform is the Next Gen CMTS and Edge QAM Natural technology evolution; cost effective, simple and redundant Supports all digital services (VOD, SDV, Broadcast, HSD/voice) Easy migration from MPEG-TS to DOCSIS Many MSOs need the CCAP ASAP Operational simplicity and benefits are staggering CCAP QAMs are much more cost effective Expect initial trials in 2011 and initial deployments in 2012 Please let us know of any interest in participating, or of questions, comments and especially suggestions 13 Thank You!!


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