Nimble This has developed an innovative solution, the Profile Management Application (PMA), that can help cable operators optimize their DOCSIS 3.1 access networks. By using data generated by network devices, the PMA can create optimized OFDM/OFDMA profiles that take into account various capabilities supported across CMTS platforms.

One of the key benefits of the PMA is that it can help increase the throughput per cable modem and maximize network capacity by optimizing the bit-loading of the subcarriers within a channel. By designing profiles around noisy areas in the plant, the system operation becomes more robust, minimizing transmission errors and maximizing the data capacity of the OFDM/OFDMA channels.

Using the PMA can provide significant bandwidth gains, resulting in a capacity increase of up to 15% to 40% on a channel, compared with running the whole channel at 256-QAM. This can translate to an extra capacity of 200 to 400 Mbps on each OFDM channel, enabling cable operators to match growing bandwidth demands and postpone potential node-splits and new equipment costs.

Overall, the PMA is an essential tool for any cable operator looking to optimize their DOCSIS 3.1 access network. By using the data generated by network devices, Nimble This PMA will help increase the throughput per cable modem and maximize network capacity by optimizing the bit-loading of the subcarriers within a channel.

The benefits of using Nimble This PMA cable for cable operators in conjunction with DOCSIS 3.1 technology. Nimble This PMA can help minimize transmission errors and maximize the data capacity of the OFDM/OFDMA channels that are part of DOCSIS 3.1.

DOCSIS 3.1 technology provides a wide channel of up to 192 MHz in occupied bandwidth or a channel, which consists of many small subcarriers spaced at 25 kHz or 50 kHz apart. These subcarriers can be individually configured to operate at different modulation orders, such as 256-QAM, 1024-QAM, or 4096-QAM.

By using Nimble This PMA with DOCSIS 3.1 technology, cable operators can take advantage of the highly configurable subcarriers and minimize transmission errors, which can result in higher data capacity for their networks. This can improve the overall performance and reliability of the network, which can ultimately benefit cable customers.

The benefits of using DOCSIS 3.1 and Nimble This PMA cable in cable networks. Some of the benefits of using these technologies include:

1. Reducing node splits: By using DOCSIS 3.1 and Nimble This PMA, cable operators can increase the capacity of their networks without having to add more physical infrastructure, such as fiber nodes. This can reduce the need for node splits and other costly network expansions.
2. Increasing network bandwidth: DOCSIS 3.1 and Nimble This PMA allow for higher data rates and more efficient use of the available spectrum, which can result in increased network bandwidth.
3. Lowering expenses: By reducing the need for physical infrastructure and network expansions, cable operators can lower their expenses and improve their bottom line.
4. Minimizing transmission errors: Nimble This PMA can help minimize transmission errors, which can improve the reliability of the network and reduce the need for expensive troubleshooting and maintenance.
5. Maximizing network capacity: DOCSIS 3.1 and Nimble This PMA allow cable operators to maximize the capacity of their networks, which can support the growing demand for high-speed data services.
6. Quicker time to market: Cable operators can more quickly implement new software technologies such as Nimble This PMA SaaS, to improve their networks and meet the needs of their customers. Our years of proven broadband experience will help you get there.

In DOCSIS 3.1, the individual configuration of modulation orders for every subcarrier in the OFDM channel is known as a “profile,” and a CMTS can use multiple profiles on a channel.

In real-world conditions, not all cable modems will operate in a clean plant, and they may experience different impairments depending on their location in the node. Some modems may experience more impairments due to outside plant issues, and they may need to be assigned a lower order modulation than modems in less impaired parts of the network.

By using multiple profiles, the channel can operate at a higher modulation order in clean parts of the spectrum and then switch to more robust modulation orders when there is any interference present. This allows the CMTS to use different profiles for different groups of cable modems, ensuring that each group can operate at the most efficient modulation order for their particular conditions. While lower order modulation may be more robust to impairments, it does come at the cost of lower bandwidth in terms of Mbps.

The same concept applies to upstream OFDMA channels, where one can create upstream profiles for the channel, to increase reliability and throughput. The upstream is brutal. Let NimbleThis PMA make the problems go away.

Deployment:

A PMA field deployment would include the following:

1. Lab Trial – always recommended.

• ~100 cable modems
• Test to demonstrate PMA capabilities in the lab

2. Field Trial

• As with our PNM we always recommend keeping it to ~2500 cable modems
• Validate PMA is working correctly on CMTS and Cable Modems per customer

3. Production Deployment

• Working with the team a deployment plan will be followed.
• Using the data collected via PMA our application creates optimized profiles per channel.
• The CMTS configures profiles for the individual channels, assigns the modulation profiles to Cable Modems and ultimately sends/receives data using the profiles.
• Cable Modems use the profiles defined and assigned by the CMTS to receive/send data.