Cable television operators have transitioned from a traditional core business of entertainment programming to a position as full-service providers of video, voice, and data telecommunications services. Cable modems based on Data-Over-Cable Service Interface Specifications (DOCSIS®) are among the fundamental devices making this transition possible. To date, the most successful and cost-effective method for providing high-speed data services is via cable modems compliant with the DOCSIS® specifications.
DOCSIS®: The Past and The Future
The five successive versions of the DOCSIS® cable modem: DOCSIS® 1.0, DOCSIS® 1.1, DOCSIS® 2.0, DOCSIS® 3.0, and DOCSIS® 3.1 specifications provide increasing levels of capabilities and functionality, while maintaining multi-vendor interoperability and full backward and forward compatibility of DOCSIS®.
- DOCSIS® 1.0 technology provides basic broadband Internet connectivity for one or more devices in the home. Among other things, it includes the ability to rate-limit (cap) a particular customer's data rate to a cable operator selected value.
- DOCSIS® 1.1 technology provides improved operational flexibility, security, and quality-of-service (QoS) features.
- DOCSIS® 2.0 technology includes increased upstream reliability and throughput for symmetric services.
- DOCSIS® 3.0 technology provides a number of enhancements, most notably, channel bonding, support for IPv6,and support for IPTV. Channel bonding provides cable operators with a flexible way to significantly increase speeds to customers, with compliant devices supporting up to at least 160 Mbps in the downstream and 120 Mbps in the upstream.
- DOCSIS® 3.1 technology builds upon previous versions of DOCSIS technology to cost effectively provide multi-gigabit services and capacities, improved Quality of Experience, and energy efficiency; many performance enhancements are available when operating on existing HFC networks (no upgrades required).
- DOCSIS® 1.0 cable modems made the interoperability of cable technology a reality for cable operators and cable subscribers.
- DOCSIS® 1.0 technology made the standardization of cable modems possible. As a result, placed downward pressure on cable modem prices causing them to drop from $500 to $50.
- DOCSIS® 1.1 technology enables the cable operator to configure guarantees on the data rates and/or the latency of the service.
- DOCSIS® 2.0 technology increases upstream throughput to 27 Mbps of capability.
- DOCSIS® 3.0 technology allows cable operators to provide data rates in the hundreds of megabits.
- DOCSIS® 3.1 technology will allow cable operators to provide multi-gigabit per second services.
- DOCSIS® 1.0 technology provides the cable industry-platform the delivery of high-speed data on cable modems.
- DOCSIS® 1.1 technology paves the way for high-quality digital voice, interactive gaming, and commercial service level agreements (SLAs).
- DOCSIS® 2.0 technology increases upstream throughput resulting in an increase in the capacity to deliver high-speed data.
- DOCSIS® 3.0 technology enables direct competition with VDSL and FTTX service offerings from the telcos, and provides a platform for the evolution of the cable video business into IPTV.
- DOCSIS® 3.1 technology enables operators to provide services over HFC networks that are competitive with emerging PON technologies, and greatly exceeding copper based offerings, allowing cable operators to remain the provider of choice for years to come.
For further information, please contact CableLabs at 303.661.9100.