The world's first commercial network-based, seamless service with 1/10 the data volume of existing LTE environments.

KT (Chairman Hwang Chang-gyu) announced that it has successfully demonstrated the 'next-generation C-RAN (Centralized Radio Access Network)' technology on a commercial network for the first time in the world together with Alcatel-Lucent.

'Next-generation C-RAN' is a technology that transmits data between remote base stations and central base stations via a local area network (Ethernet) between users through functional rearrangement. This reduces the amount of data transmitted over optical cable sections to less than 1/10 of the LTE environment, enabling uninterrupted service even in crowded places.

This demonstration, which was conducted at the KT 5G R&D Center in Seocho-gu, Seoul, was carried out in an environment where a ‘next-generation C-RAN’ was built using commercial LTE frequencies and internet optical cables.

It has been verified that Full HD video can be played simultaneously without interruption on four terminals with only 1/10 the bandwidth of the existing LTE environment, and that the service can be provided at the same data transmission speed as LTE (DL: 148.7 Mbps, UL 41.8 Mbps).

▲ KT and Alcatel-Lucent employees demonstrate technology at the KT 5G R&D Center.

KT is The successful demonstration not only satisfied the 5G requirements of international organizations such as the ITU, but also laid the foundation for the application of key 5G technologies such as Massive MIMO, mmWave, and New RAT.

Laying the foundation for international organizations' 5G requirements and key technology applications.

“By further strengthening our 5G technology collaboration with KT, we plan to focus on examining various types of coverage scenarios, network scalability, and network stability and requirements in specific market segments such as enterprise networks,” said Yoo Ji-il, president of Alcatel-Lucent Korea.

KT Convergence Technology Institute Director Lee Dong-myeon said, “By building a next-generation C-RAN test bed to verify the structure of 5G base stations, we will lead virtualized base station technology to improve the service speed and quality experienced by customers in the coming 5G era.” He added, “Through continuous cooperation and technology development with global manufacturers, we will present next-generation base station technology that can respond to future 5G ultra-high-speed transmission technology.”