Mr. Nakamura has been working for research and development of the W-CDMA. He has been engaged in the W-CDMA standardization activity at ARIB in Japan since 1997 and he is currently the leader of the IMT-Partnership Group in ARIB since March 2006. He has been contributing to standardization activities in 3GPP since1999. He has been the rapporteur for LTE and LTE-Advanced in 3GPP TSG-RAN since December 2004 and March 2008, respectively.　He had contributed to 3GPP TSG-RAN as a vice chairman during March 2005 to March 2009. He is currently a chairman of 3GPP TSG-RAN since April 2009.