Sanghoon Lee, Beom Kwon, Seonghyun Kim, Jungshin Park, Hojae Lee, "Method and apparatus for traffic load balancing in mobile communication system", Samsung Electronics, Industry-Academic Cooperation Foundation, Yonsei University, US20150078168A1 (2015.03.19)     

Sanghoon Lee and Suyoung Park, "Method of Controlling Bearers for Multiple Layer Data Transmission and Method for initializing Multiple Layer Data Transmission", Industry-Academic Cooperation Foundation,Yonsei University, WO2009022772A1 (2009.02.19)     

Sanghoon Lee and Hyungkeuk Lee, "Apparatus and Method for Managing Wireless Resources", Industry-Academic Cooperation Foundation,Yonsei University, US20090290548A1 (2009.11.26)     

Sanghoon Lee, Hyungkeuk Lee, "Visual entropy gain for wavelet image coding", Samsung Electronics, US20070263938A1 (2007.11.15), EP1987675A4 (2013.01.06), WO2007097580A1(2007.08.30)      

Sanghoon Lee, Sungho Jeon, "System and method for synchronizing base stations in communication system", Samsung Electronics, US20070230510A1 (2007.10.4)     

Sanghoon Lee, ""Method of efficiently transmitting data during a handover in a wideband radio access network", Samsung Electronics, AEP1560452A3 (2009.09.30.) ,  US20050163097A1 (2005.07.28.), CN1691830A (2005.11.02.)