Ericsson — The Architecture Before the Applications
Why the company building 6G is designing possibilities that markets and societies have yet to discover
PERSPECTIVE | Mobile networks are built before society fully understands what they will be used for. As Ericsson helps shape 6G, it is not merely developing a new generation of connectivity. It is helping define the technical space within which future economies and applications can emerge.
When the first generations of mobile networks were built, their purpose appeared relatively clear. They would allow people to speak to each other without being connected to a fixed telephone line. Mobility was the innovation. The telephone remained the familiar object. What followed was far less predictable.
Second-generation networks digitised mobile communication and made text messaging possible. SMS began as a modest technical feature inside a system designed primarily for voice. It became a new social language. Short messages changed how people made appointments, maintained friendships and communicated across generations.
The network must often exist before demand can reveal its final form.
The infrastructure had created a behaviour that its builders could enable, but not fully anticipate.
The network comes first
The same pattern became more visible with 3G. Its early commercial systems offered limited speeds by present standards, but they established the foundations of mobile internet. At first, the experience was awkward. Devices were small, websites were designed for desktop computers and operators struggled to turn data access into a convincing mass-market service.
Then screens improved. Smartphones arrived. Applications moved from the computer to the pocket. The mobile network was no longer merely carrying conversations; it was becoming an access layer for the internet.
With 4G, the relationship reversed almost completely. The network was designed around data rather than voice. Higher capacity and lower latency made continuous video, cloud-based applications and location-dependent services practical at scale.
In December 2009, TeliaSonera launched the world’s first commercial LTE network in Stockholm, supplied by Ericsson. Yet neither the equipment provider nor the operator could have mapped all the economic activity that would eventually run across it.
Streaming, ride-hailing, food delivery, social video and the wider app economy did not emerge from the telecom sector. But they depended on infrastructure built before their business models became obvious.
This is one of the central paradoxes of connectivity: the network must often exist before demand can reveal its final form.
The unresolved promise of 5G
The debate around 5G has made this paradox harder to ignore. Consumers were promised faster connections, but speed alone was never its most important proposition. 5G also introduced an architectural shift towards standalone cores, programmable networks and network slicing: the ability to provide different levels of performance across the same physical infrastructure.
These capabilities were intended not only for phones, but for factories, private networks, connected machinery and services requiring predictable reliability.
Many of those applications are still developing. Factories do not reorganise themselves as quickly as consumers download new applications. Industrial machinery may remain in use for fifteen or twenty-five years. Telecom generations tend to arrive roughly every decade. The two investment cycles do not naturally align.
5G may prove to be an architectural bridge—a transition from mobile broadband towards programmable infrastructure.
Industrial adoption also depends on safety, integration and a demonstrable return on capital. The result is sometimes interpreted as disappointment: 5G arrived, but its decisive application did not.
That judgement may be premature. 5G may prove to be an architectural bridge—a transition from mobile broadband towards programmable infrastructure. Its industrial meaning could still be taking shape while work on its successor has already begun.
Designing a capability, not an application
Research under 3GPP Releases 19 and 20 is preparing the ground for Release 21, which will contain the first normative 6G specifications. Commercial deployment is generally expected around 2030. At this stage, 6G is therefore not a finished product. It is a field of choices.
Ericsson defines the emerging network not as a faster data pipe, but as an AI-native intelligent fabric uniting connectivity, sensing and distributed computing.
That distinction matters. A future mobile network may do more than transmit information about the physical world. Through integrated sensing and communication, radio signals could also help detect movement, locate objects or interpret changes in an environment. In simplified terms, part of the communications network could begin to function like a distributed radar and sensor system.
The most consequential applications of 6G may be those that nobody is currently discussing.
Computing may change as well. AI inference need not always take place inside a distant data centre or entirely on a device. Processing could be distributed across devices, network infrastructure and cloud systems according to latency, energy, security and privacy requirements.
The possible applications are easy to imagine but difficult to predict. Autonomous machines may need to exchange information in real time. Wearable devices may continuously interpret their surroundings. Factories, vehicles and public infrastructure may require levels of reliability that ordinary mobile broadband was never designed to provide.
Some of these possibilities will materialise. Others will not. The most consequential applications may be those that nobody is currently discussing.
That uncertainty is not evidence that 6G lacks purpose. It is part of the logic through which general-purpose infrastructure is created. Railways were not built for every product they would eventually transport. Electricity grids preceded many of the devices that made them indispensable. The internet existed before the platform economy.
Connectivity works in much the same way. It establishes a technical field within which others can innovate.
The invisible position of Ericsson
This places Ericsson in an unusual position. It is not a consumer platform deciding which applications people see. Nor is it an operator controlling the direct relationship with most users. Its influence lies deeper in the system.
Ericsson develops radio equipment, core-network technology, software and automation. It conducts long-term research, contributes to technical standards and translates agreed specifications into systems that operators can deploy across very different markets.
Standardisation is a consensus-driven arena. Universities, operators, governments, competitors and other technology companies participate through organisations including 3GPP and the ITU. Ericsson does not design 6G alone.
By the time the future uses of 6G become obvious, many of its most important technical choices will already have been made.
But only a small number of companies possess the research depth, patents, engineering capacity and global operator relationships required to influence a mobile generation from early research to commercial infrastructure.
That makes Ericsson strategically important to Europe. The continent often worries about the digital platforms it did not build and the semiconductor capacity it allowed to move elsewhere. In mobile communications, Europe still retains companies capable of shaping a foundational global technology.
The question is therefore larger than whether 6G will make phones faster.
Technical standards create path dependency. Choices about architecture, spectrum, security and interoperability determine which innovations become easier, which companies can participate and where future economic value accumulates. They do not decide the future completely, but they shape the routes available to reach it.
By the time the future uses of 6G become obvious, many of its most important technical choices will already have been made.
This article is part of Ericsson — The Architecture Before the Applications, a four-part series exploring how the company helps shape 6G, global standards and Europe’s technological position.
Credit
Illustration: Altair Media with OpenAI
Caption
A Nordic navigator draws the architecture of a future network while its applications remain only faint possibilities on the horizon—reflecting how infrastructure is designed before society fully understands what it will enable.
