Committers:
Ashiq Khan (NTT DOCOMO, khan@nttdocomo.com)
-Bertrand Souville (NTT DOCOMO, souville@docomolab-euro.com)
Dong Wenjuan (ZTE, dong.wenjuan@zte.com.cn)
Gerald Kunzmann (NTT DOCOMO, kunzmann@docomolab-euro.com)
Ryota Mibu (NEC, r-mibu@cq.jp.nec.com)