5G Antenna-Integrated Telematics Control Unit

Hyundai Mobis is developing a 5G wireless communication-based, antenna-integrated telematics control unit (MTCU) designed to enable advanced connected vehicle services and support the transition toward software-defined vehicle architectures.

Transition from 4G to 5G telematics
Telematics systems integrate communication and information technologies into vehicles to support functions such as navigation, remote vehicle control, diagnostics, and safety-related services. Most telematics systems currently in mass production operate on 4G communication, including those supplied by Hyundai Mobis.

As mobile communication standards transition from 4G to 5G, telematics performance requirements are increasing. Higher data rates, lower latency, and improved connectivity reliability are becoming essential for emerging mobility services. In response, Hyundai Mobis is developing a next-generation MTCU based on 5G communication to address these evolving requirements.

Functional scope of 5G-based telematics
Compared with 4G-based systems, which typically support over-the-air (OTA) software updates, infotainment streaming, and car-to-home connectivity, 5G-based telematics enables additional services. These include high-precision map updates, remote control functions for autonomous driving scenarios, and ultra-high-definition content streaming.

The increased bandwidth and reduced latency of 5G communication also support more responsive data exchange between vehicles and cloud-based services. This capability is considered a foundational requirement for connected mobility platforms and for scaling advanced driver assistance and autonomous functions.

Antenna-integrated hardware design
A key design characteristic of the MTCU under development is the integration of antenna functionality directly into the telematics control unit. By eliminating the need for externally protruding antennas, the design reduces external vehicle components while maintaining wireless communication performance.

This antenna-integrated approach supports a cleaner vehicle exterior design and simplifies system integration at vehicle level. It also reflects a broader trend toward consolidating electronic functions within fewer, more capable control units.

Relevance to software-defined vehicles
The 5G-based MTCU is positioned as an enabling technology for software-defined vehicles (SDVs), where vehicle functionality is increasingly defined and updated through software rather than fixed hardware configurations. High-speed, low-latency connectivity is required to support continuous software updates, feature activation, and remote diagnostics throughout the vehicle lifecycle.

By combining 5G communication with integrated hardware architecture, the MTCU is intended to provide a scalable platform for future vehicle software ecosystems.

Market and production context
Hyundai Mobis is currently mass-producing and supplying 4G-based telematics solutions to global automakers. The development of the 5G-based MTCU builds on this production experience, leveraging established telematics system design and manufacturing capabilities.

By advancing antenna-integrated 5G telematics technology, Hyundai Mobis aims to strengthen its competitiveness in the global automotive electronics market, where demand is increasing for high-specification, multi-functional connectivity solutions aligned with next-generation mobility services.