In a recent development, Samsung Electronics, in collaboration with KT Corporation and Keysight Technologies, successfully demonstrated eXtreme multiple-input multiple-output (X-MIMO) technology for the 7 GHz band. This effort highlights a crucial milestone for potential future 6G systems. The partners achieved peak download speeds of up to 3 Gbps during outdoor tests, marking a capability boost for this high-frequency spectrum.
The 7 GHz band is a potential candidate for 6G deployment due to its unique balance between coverage and capacity. Positioned between the current mid-band 3.5 GHz and higher millimeter-wave frequencies, the 7 GHz band presents a solution to some existing challenges. However, higher frequency bands often struggle with shorter propagation distances. Samsung and its partners aim to counteract this issue using X-MIMO, which enhances antenna density and throughput without compromising coverage.
The field trial, conducted at Samsung’s Seoul R&D campus, utilized a 6G base station prototype with 256 digital ports. The setup demonstrated eight simultaneous data streams to a single receiving device. This modern solution incorporated four times as many antenna elements as current 5G systems. KT Corporation’s support facilitated an outdoor wireless environment, reflecting real-world conditions.
“The validation of ultra-high-density antenna technology performance in the 7 GHz band marks a critical step toward 6G commercialization. By securing stable, high-capacity operation in high-frequency bands, we have established a foundational technology for enabling ultra-fast, immersive services,” said Jong-Sik Lee, executive vice president at KT Corporation.
In addition to this collaboration, Samsung and KT recently validated an AI-based radio access network (AI-RAN) in a commercial setting. By addressing coverage challenges using AI, the partners monitored approximately 18,000 users in South Korea. Teams identified recurring service issues and tailored network configurations to improve user experience.
As the race toward 6G intensifies, these advancements underline the readiness and commitment of the telecom industry. By overcoming propagation and capacity issues, the transition to future networks becomes increasingly feasible. The partnership between Samsung and KT represents a significant step forward in achieving faster and more reliable connectivity for users globally.
