Aura Kasih
As the global communications industry convenes for Mobile World Congress 2026, a new era of wireless technology is already casting its long shadow, heralding the advent of 6G. While the precise specifications of this next-generation standard are still in their formative stages, the discourse surrounding its potential applications and transformative capabilities is rapidly gaining momentum, signaling a significant shift in how we interact with the digital and physical worlds.
The evolution of mobile network generations has historically been characterized by ambitious promises that, in practice, have unfolded incrementally. The rollout of 5G, initiated in 2019, was met with expectations of widespread autonomous vehicles and advanced robotic surgery. However, the reality has been a more gradual integration, with ongoing enhancements and "releases" that have, for many users, fallen short of the initial hype. The iconic 5G indicator on device screens often represented a step in an ongoing journey rather than a definitive arrival. Nevertheless, this pattern of anticipation and subsequent refinement is now setting the stage for the next evolutionary leap.
The impending discussion around 6G is poised to ignite a fresh wave of technological enthusiasm, focusing on groundbreaking concepts such as the seamless integration of satellite and terrestrial networks, the development of wireless systems with inherent sensing capabilities, and the profound influence of artificial intelligence, both as an enabler of network operations and as an intrinsic component of its architecture.
The Long Horizon: From Conception to Commercialization
The conceptualization and standardization of 6G are currently underway within specialized United Nations agencies. Unlike previously established technologies, 6G is not a pre-existing, fully understood entity. Instead, it is an evolving framework, shaped by ongoing research and development, with commercial deployment anticipated around the year 2030. This protracted timeline is typical of the communications industry’s strategic planning, which often operates on decadal cycles. Consequently, discussions about 6G are surfacing years before its widespread availability, even as the full realization of 5G continues.
The definitive scope of 6G remains fluid, a characteristic that prompts a nuanced response when inquiring about its specific functionalities. Researchers and analysts frequently respond with a cautious "maybe" when questioned about the feasibility of certain advanced capabilities. This uncertainty stems from the fact that 6G is not a discovered phenomenon but rather a technology being actively constructed. Its defining characteristics will continue to mature and evolve well beyond the projected 2030 launch date.
The Olympics as a Catalyst: A Stage for Technological Showcase
A recurring theme in discussions surrounding 6G’s public debut is the potential role of the 2028 Los Angeles Summer Olympics. Industry leaders, including John Smee, Qualcomm’s VP of Engineering, have indicated significant presence and involvement at the event, suggesting it could serve as a pivotal platform for demonstrating 6G capabilities to a global audience. Ian Fogg, a wireless network research director at CCS Insight, concurs, noting that major international sporting events often drive companies to accelerate pre-commercial activities for technological showcases. This strategic alignment of technological advancement with high-profile global events, while potentially effective for generating publicity, raises questions about the organic progression of innovation versus event-driven timelines.
Integrated Sensing and Communication (ISAC): A New Dimension of Network Functionality
Among the most intriguing, and potentially transformative, aspects of 6G is the concept of Integrated Sensing and Communication (ISAC). This paradigm envisions wireless networks not only as conduits for data but also as sophisticated sensing mechanisms. Beyond simply detecting connected devices, 6G base stations may possess the ability to perceive a broad spectrum of physical objects through the same radio frequency signals that carry wireless internet traffic. This integrated functionality moves beyond traditional communication and enters the realm of environmental awareness.
The practical applications of ISAC are diverse. Fogg highlights its utility in traffic pattern analysis and, notably, in drone detection. The challenges posed by small, low-altitude drones, often difficult to track with conventional radar, could be significantly mitigated by ISAC. The ability of radio frequency signals to penetrate buildings and obstacles offers a distinct advantage in detection and tracking. Experts foresee significant benefits in public safety and national defense, areas where enhanced situational awareness is paramount. The potential for substantial government contracts provides a strong economic incentive for the wireless industry to pursue this technology.
However, the pervasive nature of ISAC raises profound privacy concerns. Petar Popovski, a professor and researcher at Aalborg University, points out that while users can opt out of communication by turning off their devices, opting out of being sensed by a network infrastructure presents a far more complex challenge. This raises questions about the fundamental right to privacy in an environment where ubiquitous sensing becomes a networked capability.
Physical AI: Bridging the Digital and Real Worlds
ISAC’s ability to translate physical phenomena into digital signals could establish base stations as critical gateways between the real and digital realms. This, in turn, could foster the development of "physical AI," where artificial intelligence models gain a more nuanced and comprehensive understanding of the tangible world. This integration could lead to AI systems that are more deeply informed by real-time environmental data, potentially unlocking new levels of predictive and adaptive intelligence.
Satellite Connectivity: Redefining Ubiquitous Access
While the prospect of pervasive sensing may evoke apprehension, 6G also promises more universally beneficial advancements, particularly in the realm of satellite connectivity. Experts widely agree that the seamless integration of satellite and terrestrial networks represents one of the most impactful applications of 6G for the average user.
Current approaches to satellite phone connectivity involve either direct connection via dedicated satellite spectrum, as demonstrated by Apple’s partnership with Globalstar, or the utilization of cellular spectrum bands in conjunction with satellite services, such as T-Mobile’s collaboration with Starlink. 6G aims to standardize a more fluid transition between these modalities, enabling devices to leverage both satellite and cellular spectrums concurrently and interchangeably.
The current user experience with satellite connectivity can be likened to that of Wi-Fi compared to cellular data. While cellular connections seamlessly transition between towers, Wi-Fi connections are often acutely noticeable when a signal is lost or acquired. The goal of 6G standardization bodies is to eliminate this discontinuity, ensuring that connectivity is consistently available, whether through a terrestrial cell tower or a satellite, creating an "it just works" experience.
The imperative for such integrated connectivity is clear. For individuals in regions with limited terrestrial network coverage, the ability to maintain an uninterrupted connection, even when outside the range of cell towers, could be critical. The current process of manually locating satellites via a smartphone interface is cumbersome. A truly seamless transition between cellular and satellite networks, operating without user intervention, could prove to be a life-saving feature in emergency situations.
The technical hurdles are substantial. Smartphones, with their compact antennas and limited battery capacity, are not inherently designed for direct satellite communication. Unlike dedicated satellite communication equipment, mobile devices cannot accommodate large battery packs or external mounting. Nevertheless, overcoming these challenges would represent a significant leap forward. Popovski anticipates that consumers will first perceive the arrival of 6G through the sustained, seamless internet connectivity experienced on airplanes, boats, or in remote areas—a tangible improvement that he notes was not a prominent promise of the 5G era.
AI-Native Networks: Intelligent Infrastructure
The integration of Artificial Intelligence is a central tenet of 6G development, with the concept of an "AI-native" network emerging as a key focus. This refers to the embedding of AI processing capabilities directly within the network infrastructure itself. The objective is to optimize network operations through AI-driven management and to enhance the capabilities of base stations by equipping them with more powerful processors, effectively transforming them into distributed mini-data centers capable of running advanced AI applications.
This approach involves replacing proprietary telecommunications equipment with general-purpose processors in base stations. According to Durga Malladi, Qualcomm’s EVP of Technology, this would facilitate the co-location of communication workloads with AI processing, creating a "continuum of compute" that spans from data centers to the 6G network and ultimately to end-user devices.
While AI can undoubtedly assist network operators in maintaining optimal network performance, the widespread deployment of GPUs in every global base station warrants careful consideration. The development of AI-driven services, such as real-time language translation, is already being implemented on existing 4G networks, suggesting that such capabilities are not exclusively dependent on 6G. Malladi acknowledges that telecommunications operators will likely introduce AI services into their networks in anticipation of and during the transition to 6G, positioning themselves to capitalize on its full benefits.
The potential for AI within the network extends beyond operational efficiency. Popovski suggests that the synergy of AI at both the device and network levels can enable entirely new multimodal user experiences, fundamentally differentiating the user paradigm from the smartphone-centric model of the past two decades. Fogg elaborates on this by envisioning augmented reality applications where real-time information is seamlessly overlaid onto the user’s field of vision. The immense data requirements for such applications would render it impractical to store all information locally on a connected smartphone or to retrieve it solely from distant data centers, where latency would create a frustrating user experience. By processing information within base stations closer to the user, 6G could make advanced augmented reality applications a more feasible and immersive reality.
The Shadow of Hype: Lessons from 5G’s Deployment
The discussions surrounding 6G’s potential capabilities inevitably draw parallels to the 5G rollout, particularly the divergence between initial promises and eventual implementation. A key factor contributing to 5G’s perceived shortcomings was the prevalence of non-standalone deployments, where 5G radio access networks were integrated with existing 4G core networks. Many of the advanced functionalities envisioned for 5G, such as ultra-low latency and enhanced network slicing, were contingent on the development and deployment of a fully standalone 5G core.
The staggered rollout of standalone 5G across different regions, with some operators still relying on 4G core infrastructure, highlights the complexities of network upgrades. David Witkowski, CEO of Oku Solutions and a senior member of the IEEE, characterizes the 5G deployment as a "ready, fire, aim" approach. Given this trajectory, he expresses skepticism regarding network operators’ eagerness to fully invest in and upgrade to a 5G core when the development of 6G is already well underway. He posits that it is plausible that many operators may bypass a full 5G core transition and proceed directly to 6G infrastructure.
This potential for skipping intermediate generations is not unprecedented. Witkowski refers to 3G as a "skip standard," where its adoption was largely a placeholder while the industry awaited the more transformative capabilities of 4G. This suggests a possibility that 5G might similarly serve as a transitional phase, with the industry’s focus shifting towards the more comprehensive advancements offered by 6G.
In this scenario, 5G might fade into the background, much like previous generations or, as Witkowski humorously notes, like even-numbered Star Trek movies. The prevailing sentiment among some industry observers is that the industry might indeed bypass a full 5G core realization and wait for the integrated capabilities of 6G to coalesce. If the potential of 6G, as previewed, is realized, such a strategic leap could indeed prove to be a beneficial outcome for the advancement of global communication infrastructure.
Lisa Mariana
Ridwan Kamil