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DOCSIS 3.1 Migration

Integrating DOCSIS 3.1 into existing networks can be an overwhelming journey. Partner with ARRIS to develop and implement a multi-phase migration plan that’s optimized for your budget, service goals, and schedule. We’ll get you there.

A solid DOCSIS 3.1 migration plan starts with evaluating your existing network to see what hardware, software, and configuration changes it needs to be compliant with DOCSIS 3.1.

A network readiness evaluation typically reviews:

  • CMTS capabilities. Can your CMTS be upgraded to a DOCSIS 3.1 compatible CCAP device to support your service goals for each Service Group?
  • Core to edge routing capabilities. Are sufficient ports and capacity available? Is appropriate system software installed?
  • Operations support system (OSS) and Business support system (BSS). Are your back-office and customer-facing systems ready to fully support DOCSIS 3.1 service levels?
  • Inside plant. Are components in the RF path of the inside plant ready for DOCSIS 3.1? Are power levels, attenuation levels, and input/output levels sufficient? Are there any physical obstructions for new cable installation and is rack space sufficient?
  • Outside plant. Does HFC infrastructure from the fiber node to the homes passed in the RF path capable of supporting the basic DOCSIS 3.1 configuration of 1 GHz+ forward spectrum and 85 MHz+ return spectrum?

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High speed data growth continues unabated and Operators continue to evaluate if their existing headend and infrastructure can support more bandwidth per household.

Depending on their specific needs, Operators can plan a cost-effective approach with their existing E6000 system.

If the need is simply for more downstream capacity for their customer base, a software upgrade to their existing E6000 CER will enable DOCSIS 3.1 functionality with their current GEN 1 hardware.  As a result, DOCSIS 3.0 and DOCSIS 3.1 will be available to Service Groups and those subscribers with a DOCSIS 3.1 modem or gateway will experience 2 Gbps speeds.  

To further increase the capacity of the E6000, Operators can upgrade the DCAM, UCAM and RSM modules to Gen2. This upgrade, coupled with the E6000 CER Ver 5.x software that supports DOCSIS 3.1 both upstream and downstream, will result in double the supported Service Groups and six times the total bandwidth.

 Comparison table of E6000 Service Group capacity

 

1:1

1:2

% DS-SG cf Gen 1

Gen 1

56 DS-SG

72 US-SG

48 DS-SG

96 US-SG

 

Gen 1.5 (UCAM2)

56 DS-SG

72 US-SG

48 DS-SG

96 US-SG

100%

Gen 2 (I-CCAP)

96 DS-SG

96 US-SG

64 DS-SG

144 US-SG

171% 1:1

133% 2:1

With this capability to deliver gigabit speeds, Operators are now looking carefully at traffic engineering incorporating all of the important criteria, like number of subscribers, average bandwidth consumption levels, maximum bandwidth service level agreements, and QoE.

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In today’s outside plant there are significant factors at play that influence an Operator’s strategic network plans, including:

  • Bandwidth Capacity Demands – Nielsen’s Law predicts an increase of high-speed data consumption by high-end users by 50 percent per year. Current traffic analysis as well as projections remain aligned with Nielsen’s Law.
  • 1.2GHz Nodes – A new generation of nodes and amplifiers will enable greater bandwidth capacity upstream and downstream.  
  • New Distributed Access Architecture (DAA) – DAA drives functionality from the headend to the outside plant and requires the replacement of modules in existing nodes and an increase in the number of nodes over time.
  • Aging Plants – For many Operators, the last significant technology update of their outside plant was nearly 20 years ago. As a result, the failure rates of equipment in the field is accelerating, causing an increase in costly truck rolls.

Because of these factors and others, Operators are beginning to seek solutions to optimize their operations.

At ARRIS, our nodes and module solutions allow Operators to move towards a Node+0 architecture and fiber deep solutions like Remote PHY and FDX as they come to market over the next several years. Decisions can be made Service Group by Service Group as traffic utilization on the network evolves thus minimizing the disruption to network and service provisioning.

Node splitting and Service Group segmentation allow Operators to segment when and where bandwidth constraints may be affecting performance. Combined with an upgrade to 1.2 GHz modules where Node+X is the initial step, moving to DOCSIS 3.1 will increase bandwidth per Service Group and improve overall perceived available bandwidth.

DOCSIS 3.1 Migration - Nielsen’s Law of Internet Bandwidth
Nielsen’s Law of Internet Bandwidth

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Expanding service offerings doesn’t mean Operators need to expand their headend facilities or build new buildings. The unique Planned Offsite and Delivered (POD) approach at ARRIS frees floor space for future growth, reduces operating costs, and avoids service disruptions during upgrades.

Using a POD-based architecture, we build mini-hubs that contain the infrastructure for video, voice, and data services, including DOCSIS Transport, edge QAM, VoD, cloud DVR, CA, set-top signaling, and ad insertion.

A POD is highly configurable, supporting multiple architectures and other operating requirements and components. PODs also use space, cables, and power very efficiently.

ARRIS builds each POD offsite, which involves close collaboration to ensure that rack layout, cable management, and other features are optimized for the Operator’s deployment. After building a POD, all services and connections are validated at the offsite location, using mock services to simulate real-world conditions.

After completing offsite testing and final adjustments, ARRIS moves the POD into the hub. ARRIS handles the packaging, transportation, and re-assembly process with minimal disruption to the day-to-day operation of the hub.

Once the first POD is fully operational, decommissioned infrastructure can be removed, or redeployed in a subsequent POD or at a smaller hub.

DOCSIS 3.1 Migration - Example POD configuration
Example POD configuration

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