6G: Beyond Speed – A System-Level Transformation
As the wireless industry looks toward 6G, the conversation is shifting from raw data rates to architectural transformation. In a recent interview, Giovanni D’Amore, project manager for emerging technologies at Keysight and thought leader in advanced communications, shared his perspective on what will truly define 6G, and why it’s not just “5G but faster.”
Photonic Integration: A Silent Enabler
One of the most promising breakthroughs Giovanni highlighted is RF photonic integration. These compact, multi-frequency chips can handle microwave, millimeter-wave, and even sub-terahertz bands on a single platform. This capability is critical because 6G will span an unprecedented range of frequencies, requiring hardware that is both reconfigurable and energy-efficient.
“Photonic integration will accelerate the journey from research to standardization,” Giovanni explained. “It enables dynamic spectrum access and carrier aggregation while reducing cost and power consumption.”
This technology could redefine how radios are designed, allowing operators to deploy flexible hardware that adapts to diverse spectrum environments without massive infrastructure overhauls.
Reconfigurable Intelligent Surfaces: From Theory to Reality
Another under-the-radar innovation is Reconfigurable Intelligent Surfaces (RIS), metasurfaces that can manipulate radio waves to optimize coverage and sensing. While RIS has generated excitement in academic circles, Giovanni cautions that practical deployment remains challenging.
“RIS can change the way we approach network planning and energy efficiency,” he noted. “But moving from theoretical models to real-world prototypes will take time.”
If successful, RIS could enable low-power coverage extensions and advanced sensing capabilities, making networks more adaptive and sustainable.
Integrated Sensing and Communication: Unlocking New Value
6G isn’t just about connectivity, it’s also about context awareness. Integrated sensing and communication (ISAC) will allow networks to act as environmental sensors, enabling applications such as:
- Smart traffic systems that detect vehicle positions and optimize flow.
- Factory automation where robots communicate and sense their surroundings for collision avoidance.
- Digital twins and immersive XR experiences powered by real-time spatial mapping.
“ISAC transforms networks from data pipes into intelligent platforms,” Giovanni emphasized. “It opens doors to predictive modeling for smart cities, remote maintenance, and safety-critical applications.”
This convergence of communication and sensing will create new monetization opportunities for operators while driving innovation in sectors like healthcare, transportation, and industrial automation.
Debunking the Biggest Myth
According to Giovanni, the biggest misconception about 6G is that it’s simply a speed upgrade.
“6G must deliver a system-level transformation,” he said. “Increasing bandwidth alone doesn’t solve the real challenges. Higher frequencies mean greater propagation loss and energy constraints. 6G will require rethinking key aspects of the physical layer and network architecture.”
This holistic approach will incorporate AI-native design, new spectrum strategies, and hardware-software co-optimization to meet performance, sustainability, and security goals.
Spectrum Challenges Ahead
While frequency range 3 (FR3) is emerging as a key band for 6G, Giovanni warns that spectrum harmonization is a formidable challenge. Fragmented allocations and incumbent users complicate global alignment.
“Efficient spectrum use isn’t just about adding bandwidth,” he explained. “It’s about innovative waveform design, carrier aggregation, and coexistence strategies.”
Massive multiple-input multiple output (MIMO) and full-duplex technologies will further increase complexity, requiring breakthroughs in antenna design and testing methodologies.
The Road Ahead
Giovanni predicts that 2026 will mark the beginning of large-scale demonstrations for AI-native RAN, ISAC use cases, and photonic-enabled radios. These prototypes will validate the feasibility of 6G’s ambitious goals and set the stage for standardization.
6G is an evolution with revolutionary aspects in architecture and purpose. By integrating photonics, sensing, AI, and intelligent surfaces, the next generation of wireless will move beyond connectivity to become a platform for innovation across industries.
Listen to the full interview here.