Inventor
SATO HIJIN
JP13 patents
Patents
13 patentsUS6871071B2Mar 22, 2005
Handover control method and system
NTT DOCOMO INC51 citations95
US7130636B2Oct 31, 2006
Wireless communication apparatus and wireless channel assignment method
NTT DOCOMO INC27 citations92
US6895216B2May 17, 2005
Rendering multicast service with sufficient reception quality to wireless terminals
NTT DOCOMO INC40 citations92
US6882845B2Apr 19, 2005
Autonomous zone forming communication device and autonomous zone forming method
NTT DOCOMO INC20 citations92
US7254409B2Aug 7, 2007
Multicast service providing system, multicast service providing method, information distributor, radio terminal, and radio base station
NTT DOCOMO INC31 citations91
US7254132B2Aug 7, 2007
Mobile communication system, mobile communication method, wireless base station, mobile station, and program
NTT DOCOMO INC22 citations91
US7373103B2May 13, 2008
Relay terminal, base station, charging server, communication system, charging method, program computer data signal, and storage medium
NTT DOCOMO INC11 citations84
US7006847B2Feb 28, 2006
Base station for use in multi-network connection communication system and its connecting method
NTT DOCOMO INC8 citations74
US7292860B2Nov 6, 2007
Cell formation control method, a mobile communications system, and a base station and a mobile station used therein
NTT DOCOMO INC7 citations71
US7305247B2Dec 4, 2007
Cell control method and cell system
NTT DOCOMO INC3 citations62
US7155234B2Dec 26, 2006
Connection acceptance control scheme by obtaining available quality value
NTT DOCOMO INC5 citations62
US7136662B2Nov 14, 2006
Wireless base station, method of selecting wireless base station, method of multicasting, and wireless terminal
NTT DOCOMO INC3 citations61
US7110769B2Sep 19, 2006
Cell formation control method, a mobile communications system, and a base station and a mobile station used therein
NTT DOCOMO INC2 citations60