Broadcom BCM3392 is a next-generation DOCSIS 3.1 system-on-chip (SoC) designed to bridge the performance gap between standard DOCSIS 3.1 and the upcoming DOCSIS 4.0. Often referred to as "DOCSIS 3.1+" "Enhanced DOCSIS 3.1" "DOCSIS 3.1 Extended,"
The BCM3392 serves as the direct successor to the widely deployed BCM3390 . Its primary enhancement is its ability to handle significantly more data through advanced channel bonding:
While DOCSIS 4.0 is the definitive long-term roadmap for cable networks, full deployment requires staggering capital expenditures to upgrade amplifiers, taps, and node configurations across millions of miles of coaxial lines. The Broadcom 3392 solves this immediate financial pain point:
Broadcom, called the BCM3392, It buys us time to provide the faster services that customers are looking for." Light Reading DOCSIS 3.1+ gets ready to roll - Light Reading broadcom 3392
The Broadcom 3392 is suitable for a range of applications, including:
The Broadcom 3392 offers a range of key features that make it an attractive solution for wireless connectivity in mobile devices. Some of the key features include:
One of the defining features of the BCM3392 is the network accelerator. In standard routers, the main CPU struggles to handle high-speed routing, QoS (Quality of Service), and firewall inspection simultaneously. The Broadcom 3392 offloads 100% of NAT (Network Address Translation) and bridging tasks to the Runner hardware. This allowed cheap consumer routers to route Gigabit internet speeds without maxing out the CPU cores, leaving the ARM cores free for the web interface, USB sharing, and VPN tasks. Broadcom BCM3392 is a next-generation DOCSIS 3
: Announced a full portfolio of data modems and gateways leveraging the chip to deliver 10G downstream solutions. comparison table between the BCM3392 and standard DOCSIS 3.1 chips?
Leading tier-one original design manufacturers (ODMs) have heavily adopted the chipset to anchor their hardware portfolios. Notably, network equipment giant Compal Broadband Networks (CBN) launched an entire fleet of 10G downstream data modems and residential wireless gateways powered entirely by the BCM3392 SoC. Moving forward, consumers will see this silicon embedded in premium, operator-issued gateways and high-end retail cable modems. Share public link
and eight SC-QAM channels, pushing upload speeds to approximately 1.7–2 Gbps Channel Bonding: The Broadcom 3392 solves this immediate financial pain
The Broadcom 3392 is having a significant impact on the wireless technology landscape, enabling device manufacturers to create high-performance wireless devices that can take advantage of the latest wireless standards. The chip is helping to drive the adoption of Wi-Fi 6 (802.11ax) and Bluetooth 5.0, which are becoming increasingly popular in mobile devices.
The primary technical differentiator of the BCM3392 is its ability to support . This is double the two-channel support of its predecessor, the BCM3390.
For cable operators (such as Comcast, Charter, and Virgin Media), the BCM3392 offered a strategic advantage. It allowed them to offer competitive “multi-gig” services over existing coaxial wiring—the same infrastructure already connected to over 90% of American homes—without the astronomical expense of running new fiber to each residence. The chip’s power efficiency and high integration level also reduced the bill of materials (BOM) for retail cable modems and gateways, fostering a healthy competitive market for consumer premises equipment (CPE).