The 6G clock ticking: Why silicon architecture for 2030 must start in 2026

The 6G transition is no longer a distant theoretical exercise; it’s a commercial inevitability driven by fundamental requirements for cellular standards to keep moving forward. 5G penetration has already surpassed 75% and is on a trajectory to reach 95% within a few years. We are witnessing an appreciation for continued call quality and data throughput improvements despite an explosion in mobile traffic.

However, the wireless ecosystem projects that even this capacity will soon overload due to accelerating AI content, the integration of satellite communications (SATCOM) into the cellular fold, and the rise of physical AI. 6G is the industry’s response to keep pace with that exponential growth in data communication demand.

The 2030 countdown: Why 2026 is the crucial starting line

To understand the urgency, one must look at the decadal cycle of cellular evolution. History shows it takes about five years to finalize a standard and fold its requirements into a functional ecosystem. While 6G is anticipated to take off commercially by 2030, the work-back schedule reveals a tight timeline for product builders. By 2029, hardware must be ready for compliance testing, meaning component technologies must be finalized by 2028.

Consequently, underlying embedded systems must be built in 2027, necessitating that architectural definitions start as early as 2026. As an example of what is going on in the industry, Qualcomm’s CEO recently hinted at the Snapdragon Summit that 6G-capable devices could appear as early as 2028 for trials, making the 2028 Olympics a perfect arena for tech demos.

Unlocking the “Golden Band”: FR3 and the business of spectrum

Beyond architectural shifts, 6G introduces the Frequency Range 3 (FR3) spectrum, spanning 7.125 GHz to 24.25 GHz. Often called the “Golden Band for 6G,” FR3 offers the perfect balance between the wide coverage of lower bands and the massive capacity of mmWave.

This spectrum is expected to be a major business driver, enabling the 10x higher data rates targets (up to 200 Gbps) and supporting “massive MIMO evolution” to handle the projected 4x traffic growth by 2030 (going over 5.4 zettabytes as indicated by the GSMA Intelligence report).

Sustainable networks

Sustainability is a core pillar of 6G, with network operators seeking to reduce OpEx, as 25% of it is driven by power demand. 6G moves from an “always-on” to a “smart-on” philosophy, aiming for 30-50% increase in power efficiency. Key techniques include:

Enhanced deep sleep modes: Enabling base stations to achieve near-zero power consumption when no active users are present, and reduction in periodic signaling (current 5G standard mandates high periodic signaling that in practice keeps a lot of the RF and power amplifier components active at all times).
AI-driven beamforming: Using AI to direct signals precisely to users, reducing energy waste from broad, inefficient broadcasting.
AI-driven resource management: Using AI at the higher protocol layers for effective radio resources management.

The AI-native revolution: Moving intelligence to the air interface

One of the most significant shifts in 6G is the move toward an AI-native air interface. Unlike 5G’s rigid mathematical models, 6G uses deep learning to dynamically adapt signal processing blocks. This enables “adaptive waveforms” that adjust modulation in real-time to environmental conditions.

It also facilitates integrated sensing and communication (ISAC), where RF reflections provide precise spatial awareness, allowing the network to proactively adjust beamforming based on user movement.

The coordination challenge: Managing two-sided AI

This transition introduces a complex challenge in how the transmitter (base station) and receiver (device) coordinate their intelligence. Unlike traditional algorithms, AI components must be synchronized through AI lifecycle management (LCM). The industry is weighing one-sided models (device-only optimization) against two-sided architectures (essential for tasks like CSI compression).

In two-sided designs, the device acts as a neural encoder and the base station as a decoder; these must be coordinated pairs to some extent. The level of coordination is still in study, as there are few optional schemes. Examples for those schemes are fully matched neural networks couples, or alternatively, independent at the NN architecture level but trained on the same dataset.

This raises critical questions on the protocol level: should the network use model ID-based selection (activating pre-loaded models) or model transfer (pushing new neural weights over the air) or weights transfer?

Programmable intelligence: Why DSPs are the preferred path

Because 3GPP specifications remain fluid, the need for flexibility through programmability has never been higher. Developing 6G on hard-wired logic is risky, as spec changes could render silicon obsolete. This is why digital signal processors (DSPs) are the preferred architecture. Modern DSPs are uniquely suited for the AI-native physical layer; they possess the massive number of MACs required for matrix operations and are highly efficient at the vector processing necessary for neural networks.

Leading technology vendors also offer dedicated AI ISA for accelerated NN activation functions. A fully programmable modem powered by AI-native DSP offers a “safe bet,” allowing developers to adapt as 6G settles while maintaining the performance needed to lead the market.

Elad Baram is director of product marketing for the Mobile Broadband Business Unit at Ceva.

The 6G clock ticking: Why silicon architecture for 2030 must start in 2026

Become a member

Become a member

Become a subscriber

Become a sponsor