docsis 3.1 Archives

12 02, 2024

DOCSIS 3.1 Deep Dive: OFDM vs. SC-QAM, Upstream Bonding, and Troubleshooting Tips

Mia Colabrese2024-03-27T08:41:29-04:00February 12th, 2024|

Join us in this insightful episode of Get Your Tech On, where we delve deep into the intricacies of DOCSIS 3.1. Hosted by Brady Volpe, founder of VolpeFirm and Chief Product Officer at OpenVault, and featuring John Downey, Industry Technical Expert on DOCSIS, this livestream is a must-watch for anyone in the cable and telecommunications industry. In today's episode, we tackle some of the most pressing questions about DOCSIS 3.1: OFDM vs. SC-QAM Performance and Deployment: We start by exploring the key differences between OFDM and SC-QAM channels

29 11, 2023

PMA-PNM Connection in DOCSIS 3.1

Mia Colabrese2023-11-30T08:58:56-05:00November 29th, 2023|

DOCSIS 3.1 modems have ushered in a new era of high-speed connectivity. However, ensuring their consistent performance, especially in the face of network impairments, demands a robust strategy. This is where the synergy of the profile management application (PMA) and proactive network maintenance (PNM) becomes invaluable. The twin pillars of optimal network performance 1. The PMA is designed to compensate for RF impairments in OFDM and OFDMA channels—it doesn’t fix the impairments, but goes a long way to work around them. Function: PMA is dedicated to refining the data

20 11, 2023

DOCSIS 4 or stay with Docsis 3.1?

Mia Colabrese2023-11-29T15:01:09-05:00November 20th, 2023|

Step right into the electrifying next episode of "Get Your Tech On"! Get ready for a turbocharged livestream where we're diving headfirst into the magical world of DOCSIS 4.0 wizardry and the latest updates. Our fearless host, Brady Volpe, the tech maestro behind The Volpe Firm and now also Chief Product Sorcerer at OpenVault, is teaming up with the one and only John "Cable Cruncher" Downey, CMTS Jedi Master at Cisco Systems. Together, they're on a mission to unlock mind-bending strategies for conquering challenges that make others tremble.

8 08, 2023

Managing DOCSIS 3.1 Channel Bonding: Ensuring Optimal Performance

Mia Colabrese2023-08-08T16:50:41-04:00August 8th, 2023|

Welcome to another thrilling episode of "Get Your Tech On"! In this highly informative livestream, we delve into the realm of managing DOCSIS 3.1 channel bonding to ensure optimal performance in your HFC network. Join host Brady Volpe, founder of The Volpe Firm and Chief Product Officer of OpenVault, as he teams up with the brilliant John Downey, CMTS Technical Leader at Cisco Systems, to explore ingenious strategies for overcoming challenges with modems not bonding to OFDM / OFDMA channels and offloading traffic from SC-QAM channels. Discover the

5 07, 2023

SNR (RxMER) and DOCSIS 3.1 Modems

Mia Colabrese2023-07-05T16:32:25-04:00July 5th, 2023|

Welcome to another engaging episode of Get Your Tech On, titled "Your Questions, Our Answers: SNR (RxMER) and DOCSIS 3.1 Modems." In this episode, we delve into listener queries about DOCSIS technology, focusing on Signal-to-Noise Ratio (SNR), RxMER, and the details of DOCSIS 3.1 modems. Our host, Brady Volpe, founder of NimbleThis and The Volpe Firm, is joined by the highly knowledgeable John Downey, CMTS Technical Leader at Cisco Systems. Together, they explore the intricacies of these complex topics, helping to shed light on the common RF issues

22 05, 2023

DOCSIS 3.1 has a lot of potential

Mia Colabrese2023-05-22T09:06:15-04:00May 22nd, 2023|

The cable industry hopes to deliver Internet so fast even your dog can't catch it As the demand for high-speed Internet races faster than a cheetah on roller skates, the cable industry faces the daunting task of keeping up with this need while also enhancing its service quality. In this article we'll look at the current state of DOCSIS 3.1 and 4.0, where the industry is headed in terms of these technologies. DOCSIS 3.1 is the reigning champ of cable modem standards, boasting vast improvements in bandwidth compared

7 09, 2022

Got a DBC to Change Your Cable Modem’s OUDP IUC? I thought so.

Mia Colabrese2022-09-07T14:31:24-04:00September 7th, 2022|

What is a cable modem’s OUDP? What’s an IUC? What’s a DBC? If you already know these initialisms that is awesome. If you don’t, that is fine too. DOCSIS 3.1 introduced OFDMA for more efficient upstream data transfer. In this article, I’ll cover how an impairment will cause the CMTS to change a single CM’s OUDP IUC using a DBC transaction. I will also hopefully help you understand what the heck I just said.What are cable modem profiles?Let us start the discussion with orthogonal frequency division multiple access

6 06, 2022

OFDMA — It’s Trending

Mia Colabrese2022-06-06T09:14:00-04:00June 6th, 2022|

OFDMA — It’s Trending What’s trending in cable? It’s OFDMA or orthogonal frequency division multiple access. OFDMA is the upstream counterpart to OFDM, which stands for orthogonal frequency division multiplexing. Both are part of the DOCSIS 3.1 specification and are intended to increase speed over the DOCSIS network far beyond what can be achieved using legacy SC-QAM channels. Most cable operators deployed OFDM first because the downstream had already reached data capacity limits. OFDM enabled expanded data capacity without node splits. Now that OFDM has been successfully deployed,

22 02, 2022

DOCSIS 3.1 Cable Modem Transmit Power

Mia Colabrese2022-06-06T08:57:26-04:00February 22nd, 2022|

A cable modem’s transmit power is extremely important. It not only determines if the cable modem will be able to come online and register with the CMTS (cable modem termination system) but obtaining the optimal transmit power will make or break the subscriber’s quality of experience (QoE). A DOCSIS 3.1 cable modem’s transmit power introduces some new considerations which are discussed in this article. Why is DOCSIS 3.1 cable modem transmit power important? Transmit power per channel is defined as the average RF (radio frequency) power in the

23 08, 2021

DOCSIS is Green

Mia Colabrese2021-08-23T11:28:23-04:00August 23rd, 2021|

DOCSIS is Green (full length). Shorter and cleaner version is seen in Broadband Library DOCSIS Going Green. The simplest solution is almost always the best. Through technological advancements we can do more with less. There are important discussions happening about green initiatives in our industry. Usually on the consumer electronics side. According to the NCTA “Cable operators, video programmers, equipment manufacturers, research labs and others are now providing a more energy efficient experience that is saving consumers millions of dollars in energy bills and preventing millions of metric tons of