In a groundbreaking development, South Korean telecommunications giant KT and its subsidiary KT SAT have successfully integrated 5G connectivity with satellite technology, heralding a new era of global telecommunications. By leveraging the 5G non-terrestrial network (NTN) standard, KT effectively combined the KOREASAT 6 geostationary satellite with terrestrial networks, achieving a global first. This extraordinary feat was carried out at KT SAT’s Geumsan Satellite Center in collaboration with Rohde & Schwarz Korea and Viavi Solutions Korea, demonstrating the extraordinary potential for extending 5G coverage to remote and underserved areas.
Transformative Potential of NTN Technology
Key Players and Technological Milestones
Taehoon Kim of Rohde & Schwarz Korea underscored that NTN technology serves as a crucial underpinning for both current 5G and the anticipated 6G networks. His assertion reflects the sector’s belief that NTNs can act as game-changers by extending high-speed connectivity to areas that have traditionally been difficult to service using conventional terrestrial networks. For instance, mountainous regions and isolated islands often fall outside the scope of existing 5G infrastructure due to logistical and economic constraints. Integrating satellites into the network architecture effectively eliminates these barriers, promising a new level of connectivity.
Lee Jong-sik from KT’s Network Research Center further expanded on this, emphasizing that the future of 6G networks includes ubiquitous communication in the 3D aerial domain. This grand vision implies that NTNs won’t merely supplement terrestrial networks; they will fundamentally alter the landscape of global telecommunications by enabling seamless communication regardless of geographic constraints. Signal delays often pose significant challenges in satellite-based communications. However, KT has been addressing these challenges head-on, demonstrating the feasibility of satellite-based 5G communications even with the considerable 35,800-kilometer orbit of geostationary satellites.
Broad Implications for Network Expansion
This monumental achievement holds broader implications for network expansion, especially in challenging terrains. Unlike traditional networks that struggle to extend into mountainous or remote areas, NTNs provide a viable solution. By employing aerospace platforms compliant with the 3GPP 5G NTN standard—including Medium Earth Orbit (MEO) satellites, Low Earth Orbit (LEO) satellites, and High-Altitude Platform Systems (HAPS)—KT has established a blueprint for future network expansion. Such technologies ensure not only extended coverage but also more efficient and resilient networks capable of withstanding environmental challenges.
The innovation does not stop at extending coverage. The combination of terrestrial and satellite networks fosters new opportunities for industries and communities previously left behind in the digital divide. For instance, rural healthcare, remote education, and critical services in isolated areas can now access high-speed internet, opening up possibilities for socio-economic development. As such, KT’s pioneering efforts highlight the transformative potential of NTNs in revolutionizing connectivity on a global scale.
KT’s Commitment to 6G Development
Collaborative Efforts for 6G Transmission Technologies
KT’s ambitious journey towards 6G development is exemplified by its collaborative endeavors with leading industry players like LG Electronics. The two companies are pushing the envelope in 6G transmission technologies, with a particular focus on full-duplex communication to improve spectrum efficiency. These advancements are expected to pave the way for more robust, high-speed networks capable of catering to ever-increasing data demands. Moreover, KT is actively working on wideband full-duplex devices, a move that promises to enhance overall network performance by allowing simultaneous transmission and reception on the same frequency.
KT’s aspirations extend beyond technological advancements to global leadership in 6G standardization and commercialization. Their collaboration with Nokia, for instance, targets the development of Open RAN and ultra-wideband wireless access technologies. These partnerships are instrumental in ensuring that KT stays ahead of the technological curve while contributing to the broader industry’s evolution. By aligning their goals with global standards, KT aims to set a precedent for other telecommunications companies to follow, thereby fostering a more interconnected and technologically advanced world.
Vision of Seamless 5G to 6G Transition
In a revolutionary advancement, South Korean telecommunications powerhouse KT, along with its subsidiary KT SAT, has successfully merged 5G connectivity with satellite technology, ushering in a new era in global telecommunications. By utilizing the 5G non-terrestrial network (NTN) standard, KT managed to integrate the KOREASAT 6 geostationary satellite with terrestrial networks, achieving a significant global milestone. This remarkable achievement took place at KT SAT’s Geumsan Satellite Center in cooperation with Rohde & Schwarz Korea and Viavi Solutions Korea. The breakthrough demonstrates the extraordinary potential for extending 5G coverage to remote and underserved regions, making high-speed connectivity more accessible than ever before. This innovative approach promises to bridge the digital divide, bringing robust internet access to areas that have historically been difficult to reach. It also showcases the collaborative spirit of the tech industry in pushing the boundaries of what’s possible, setting the stage for future advancements that could further transform global communication and connectivity.