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ETSI TS 103 311-1
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ETSI TS 103 311-1 Integrated broadband cable telecommunication networks (CABLE); Fourth Generation Transmission Systems for Interactive Cable Television Services - IP Cable Modems; Part 1: General; DOCSIS 3.1
standard by European Telecommunications Standards Institute, 02/01/2017
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ETSI TS 103 311-1 is part 1 of a multi-part deliverable that define the fourth generation of high-speed data-overcablesystems, commonly referred to as the DOCSIS? 3.1 specifications. This specification was developed for thebenefit of the cable industry, and includes contributions by operators and vendors from North and South America,Europe, and Asia.This generation of the DOCSIS? specifications builds upon the previous generations of DOCSIS? specifications(commonly referred to as the DOCSIS? 3.0 and earlier specifications), leveraging the existing Media Access Control(MAC) and Physical (PHY) layers, but with the addition of a new PHY layer designed to improve spectral efficiencyand provide better scaling for larger bandwidths (and appropriate updates to the MAC and management layers tosupport the new PHY layer). It includes backward compatibility for the existing PHY layers in order to enable aseamless migration to the new technology.