SK Telecom has collaborated with Ericsson to demonstrate the LTE-A technology, named Transmission Mode 9 (TM-9), say news reports.
The TM-9 platform was able to increase data transmission rate of mobile devices by 10 to 15 per cent in areas of inter-cell interference.
SK Telecom developed TM-9 to build an optimal network environment by expanding base station capacity while minimising interference between base stations to keep abreast with the expected demand for LTE-A services.
TM-9 permits base stations to distinguish mobile devices and send different demodulation reference signals (DM-RS) to each mobile device located within the coverage area. In addition, each base station uses its unique channel information reference signal (CSI-RS) to communicate with devices.
The development and demonstration of TM-9 began in October 2012 under the global research and development partnership between SK Telecom and Ericsson.
