SK Telecom on Thursday said that it successfully demonstrated a core LTE-Advanced technology named 'Enhanced Inter Cell Interference Coordination (eICIC)' under cooperation with Qualcomm, a world leader in 3G and next generation mobile technologies, and Nokia Siemens Networks, the world's specialist in mobile broadband.
eICIC is a technology that coordinates signal interference between macro and pico base stations and is rapidly gaining importance as more and more micro base stations are being built in traffic concentrated areas to accommodate explosive data traffic growth, thereby aggravating inter cell interference.
To demonstrate the technology, SK Telecom, Nokia Siemens Networks and Qualcomm created an environment where the strength of micro base station signals being transmitted to mobile devices was weaker than that of nearby macro base signals, resulting in signal interference. Then, they applied eICIC to prove that it can actually control the interference and stabilize data communications. The companies also succeeded in showing that the technology is capable of offloading data traffic by adjusting the coverage of micro base stations based on the level of data traffic concentration in macro and micro base stations. As commercial base station equipment has been used for the demonstration, the companies are expecting to achieve early commercialization of eICIC.
With the successful demonstration of eICIC, SK Telecom gained an important edge in commercializing the next-generation telecommunications network as it now holds the record of demonstrating the three core technologies needed to usher in the era of LTE-Advanced: eICIC, Coordinated Multi-Point (CoMP) and Carrier Aggregation (CA). The company successfully demonstrated CoMP at Mobile World Congress (MWC) 2011 and CA at MWC 2012. At present, SK Telecom is the only company in the world that has succeeded in demonstrating all these three technologies.