Network convergence brings cable, fiber, Wi-Fi, mobile and satellite access technologies together to deliver a more consistent connectivity experience for users. For operators, convergence can simplify management across fixed and mobile access.
Subscribers experience connectivity through their applications: a video call, a streaming service or a connected device, for example. They expect those applications to work reliably no matter where they are.
CableLabs is advancing this work through standards contributions, architectural development and demonstrations with members and vendors. The goal is to give operators more flexibility in how they build networks and deliver services — and subscribers a more consistent experience across them.
What Is Network Convergence?
Convergence can coordinate network functions, software, policy and identity management across access types. This can help supported devices connect across participating networks with consistent service policies and less manual configuration.
The technical foundation for this shift includes the move toward cloud-based virtualization across mobile and wireline infrastructure. As more network functions move into software rather than dedicated hardware, DOCSIS® networks and mobile networks can share processing, power and infrastructure resources that previously required separate physical systems.
Fixed-mobile convergence is one part of a broader effort that also brings satellite and other non-terrestrial networks (NTNs) into a coordinated connectivity experience.
What’s Driving Innovation in Fixed-Mobile Convergence?
Several developments are moving fixed-mobile convergence forward from an architecture concept toward a standardized, deployable infrastructure.
First, 3GPP’s Release 20 studies are examining the architecture of future 6G networks, including support for non-3GPP access such as Wi-Fi. This creates an opportunity to address multi-access integration early in the design process and bring fixed-network requirements into future mobile standards.
Spectrum efficiency remains a second, more immediate pressure. Mobile Optionality (MO) uses existing hybrid fiber coax (HFC) infrastructure to support denser, smaller 5G cells, making better use of spectrum through greater spatial reuse.
Infrastructure maturity is the third driver. DOCSIS 4.0 technology and continued network virtualization are expanding the capabilities and flexibility of broadband networks, creating more opportunities for fixed and mobile convergence. In parallel, Seamless Connectivity Service (SCS) is designed to coordinate connectivity across Wi-Fi, cellular, fiber, satellite and fixed wireless access.
Together, these drivers reinforce each other: 6G is setting the long-term standards direction, while MO and SCS represent the near-term infrastructure and software work already underway.
What Technologies Enable Fixed-Mobile Convergence?
Fixed-mobile convergence combines technologies that coordinate traffic across access networks with frameworks that manage device identity, onboarding and service policies. Together, these capabilities help maintain connectivity and apply consistent policies as users and devices move between supported networks.
- 3GPP Access Traffic Steering, Switching and Splitting (ATSSS): This is one standards-based approach that allows a capable device to steer, switch or split traffic across mobile and Wi-Fi access, instead of relying on a single network at a time. The industry is working toward more seamless integration across access types.
- Context-Aware Networks (CAN): CableLabs is developing a framework that lets network infrastructure recognize devices, users and applications, with policies that travel across operator footprints rather than resetting at every new network. In practice, this is designed to replace manual configuration steps like passwords, QR codes and guest-network logins with connectivity that carries over.
How Do Satellite Networks Fit Into Network Convergence?
Satellite networks can complement terrestrial connectivity by extending coverage and supporting new service offerings. Low earth orbit (LEO) satellite networks are an important part of this opportunity, including through partnerships with mobile network operators and direct-to-device services.
For broadband operators, convergence creates an opportunity to integrate satellite as another connectivity layer alongside cable, fiber, Wi-Fi and mobile networks. Doing so requires coordination between terrestrial and non-terrestrial providers to bring those connections into a consistent service experience.
CableLabs’ Seamless Connectivity Service reflects this broader approach: it is designed to coordinate connectivity across multiple access types, including satellite, reducing the need for subscribers to switch networks manually or manage separate services.
What Are the Benefits for Operators and Their Customers?
For operators, fixed-mobile convergence offers three main benefits:
- Better use of spectrum: By using existing HFC infrastructure to support denser, smaller 5G cells, MO helps operators reuse spectrum more effectively and extend mobile coverage and performance.
- Simpler operations: Coordinating infrastructure, subscriber management and policy across access types reduces the need to run fixed and mobile networks as separate systems.
- Service differentiation: Convergence gives operators a foundation for services that span fixed and mobile access, rather than being managed separately for each connection.
For subscribers, the benefit is continuity. Convergence can help maintain connectivity as users move between home, work and travel, reducing the need to switch networks manually. SCS is designed around this outcome.
Looking Ahead
Network convergence is a core part of the Network Evolution vector of CableLabs’ Technology Vision. This vector covers newer generations of fixed and wireless networks — including HFC, passive optical networks (PON) and mobile — as well as network convergence, with the goal of enhancing capacity, reducing latency and improving network flexibility. Explore the Technology Vision to learn more about Network Evolution and the other vectors shaping the future of broadband.
Network convergence is advancing through work on existing infrastructure, service coordination and future standards. CableLabs continues to bring operators and vendors together to develop and evaluate approaches that support more consistent connectivity across access technologies. If you’re a member operator or vendor, explore our working groups and Interop·Labs events to shape the technologies behind converged networks.
