Inventor
KAYAMA HIDETOSHI
JP55 patents
⚠️ This page may combine multiple inventors who share the name “KAYAMA HIDETOSHI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
NTT DOCOMO INC
38 patentsUS7359349B2Apr 15, 2008
Base station, radio resource control equipment, mobile station, communication system, and communication method
NTT DOCOMO INC62 citations98
US7292863B2Nov 6, 2007
Admission control method and device in mobile communication system
NTT DOCOMO INC75 citations98
US7821982B2Oct 26, 2010
Packet communications taking into account channel quality and buffered data amount
NTT DOCOMO INC32 citations93
US7117003B2Oct 3, 2006
Communications control system, communications control method, and mobile station and base station for use therein
NTT DOCOMO INC34 citations93
US7089017B2Aug 8, 2006
Resource control method, mobile communication system, base station and mobile station
NTT DOCOMO INC25 citations93
US7970349B2Jun 28, 2011
Packet communication system, packet communication method, base station, mobile station, control device, and packet communication program
NTT DOCOMO INC19 citations92
US7548519B2Jun 16, 2009
Mobile communication system, mobile communication method, mobile terminal and base station
NTT DOCOMO INC21 citations92
US7076258B2Jul 11, 2006
Location registration method and paging method in mobile communication system, mobile communication system, base station, communication control method, mobile station, and communication control program
NTT DOCOMO INC32 citations92
US7035637B2Apr 25, 2006
Location registration area configuring method, mobile communication system, base station, and location management server
NTT DOCOMO INC31 citations92
US7634272B2Dec 15, 2009
Mobile station, mobile communication system, and cell selection method
NTT DOCOMO INC28 citations91
US7239619B2Jul 3, 2007
Mobile communication system, base station, mobile station, and cell control method
NTT DOCOMO INC22 citations91
US7218950B2May 15, 2007
Base station, mobile station, communication system, transmission control method, and mobile station control program
NTT DOCOMO INC32 citations90
US7965785B2Jun 21, 2011
Uplink multiple-input-multiple-output (MIMO) and cooperative MIMO transmissions
NTT DOCOMO INC13 citations84
US7760680B2Jul 20, 2010
Prioritized communication between base station and mobile unit
NTT DOCOMO INC17 citations84
US7580387B2Aug 25, 2009
Time slot assigning method, signal transmission method, base station control apparatus, base station, and mobile station used in a mobile communications system
NTT DOCOMO INC15 citations84
US7496067B2Feb 24, 2009
Resource allocating method, and base station, mobile station, and radio packet communication system to which the resource allocating method is applied
NTT DOCOMO INC8 citations84
US7483710B2Jan 27, 2009
Transmission power control method, communication device, and radio communication system
NTT DOCOMO INC9 citations84
US7457622B2Nov 25, 2008
Radio base station selection method and system and a radio base station in a mobile communication system
NTT DOCOMO INC9 citations84
US7453841B2Nov 18, 2008
Scramble code allocation method, a radio base station, a mobile station, and a mobile communications system
NTT DOCOMO INC9 citations84
US7417963B2Aug 26, 2008
Resource control system, resource control method, and base station and mobile station suitable for use in the same
NTT DOCOMO INC12 citations84
US9425512B2Aug 23, 2016
Reflectarray and design method
NTT DOCOMO INC7 citations83
US7570684B2Aug 4, 2009
Method for joint time synchronization and frequency offset estimation in OFDM system and apparatus of the same
NTT DOCOMO INC18 citations82
US7801482B2Sep 21, 2010
Packet communication system, packet communication method, base station, mobile station, control device, and packet communication program
NTT DOCOMO INC5 citations74
US7532601B2May 12, 2009
Transmission power control method, radio communication system, base station and mobile station
NTT DOCOMO INC7 citations74
US7471927B2Dec 30, 2008
Packet communication system, packet communication method, base station, mobile station, controller and packet communication program
NTT DOCOMO INC8 citations74
US9531079B2Dec 27, 2016
Reflectarray and design method
NTT DOCOMO INC4 citations72
US7729666B2Jun 1, 2010
Communication system and method of dynamic space-frequency-division multiple-access for uplink from terminals to base-station
NTT DOCOMO INC7 citations63
US7710977B2May 4, 2010
Allocation of radio resources to packets in accordance with service qualities under radio communication environment
NTT DOCOMO INC3 citations63
US7308282B2Dec 11, 2007
Communication control system, communication control method, base station and mobile station
NTT DOCOMO INC4 citations63
US7110767B2Sep 19, 2006
Packet based mobile communications system with multicast paging of standby mobiles
NTT DOCOMO INC6 citations63
US7394785B2Jul 1, 2008
Mobile communication system, radio base station, mobile station, channel transmission control method, and channel transmission control program
NTT DOCOMO INC2 citations62
US7366130B2Apr 29, 2008
Base station and transmission power determining method in mobile communications systems
NTT DOCOMO INC5 citations62
US7184709B2Feb 27, 2007
Radio packet communication system, radio packet communication method, base station and mobile station
NTT DOCOMO INC6 citations62
US8385453B2Feb 26, 2013
Data processing method and base station for downlink transmit diversity
NTT DOCOMO INC2 citations61
US7733969B2Jun 8, 2010
Cyclic training sequence generating method, communication system and communication method
NTT DOCOMO INC5 citations60
US7532572B2May 12, 2009
Packet communications system, base station and mobile station
NTT DOCOMO INC0 citations52
US9620864B2Apr 11, 2017
Reflectarray and design method
NTT DOCOMO INC1 citations51
US9042900B2May 26, 2015
User terminal
NTT DOCOMO INC0 citations51
DU LEI
3 patentsUS8160048B2Apr 17, 2012
Method for accessing hybrid network, and gateway apparatus, wireless terminal and communication system thereof
DU LEI9 citations84
US8553665B2Oct 8, 2013
Method for accessing hybrid network, and gateway apparatus, wireless terminal and communication system thereof
DU LEI1 citations62
US8311022B2Nov 13, 2012
Method for accessing hybrid network, and gateway apparatus, wireless terminal and communication system thereof
DU LEI3 citations62
NIPPON TELEGRAPH & TELEPHONE
2 patentsHOU XIAOLIN
2 patentsKAYAMA HIDETOSHI
1 patentMARUYAMA TAMAMI
1 patentKITAZAWA DAISUKE
1 patentYAN YUAN
1 patentFUJII HIROMASA
1 patentShowing the top 50 of 55 patents by PatentIndex Score.