Patents by Inventor Masaaki Nakata
Masaaki Nakata has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 11818789Abstract: A communication equipment for which an extended DRX is available negotiates with a management apparatus included in a network to acquire a configuration parameter of the extended DRX. The communication equipment checks whether the base station is for which the extended DRX is available based on notification information received from the base station. The communication equipment notifies the external equipment of an operation state indicating whether the communication equipment is performing an extended DRX operation based on whether a configuration parameter of the extended DRX is acquired and whether the base station is for which the extended DRX is available.Type: GrantFiled: April 15, 2021Date of Patent: November 14, 2023Assignee: KYOCERA CorporationInventors: Masahiro Yagi, Masaaki Nakata, Makoto Tomizu
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Publication number: 20210235539Abstract: A communication equipment for which an extended DRX is available negotiates with a management apparatus included in a network to acquire a configuration parameter of the extended DRX. The communication equipment checks whether the base station is for which the extended DRX is available based on notification information received from the base station. The communication equipment notifies the external equipment of an operation state indicating whether the communication equipment is performing an extended DRX operation based on whether a configuration parameter of the extended DRX is acquired and whether the base station is for which the extended DRX is available.Type: ApplicationFiled: April 15, 2021Publication date: July 29, 2021Applicant: KYOCERA CorporationInventors: Masahiro YAGI, Masaaki NAKATA, Makoto TOMIZU
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Patent number: 9312931Abstract: In a case where, although a radio base station (eNB 1-1) has established an SRS transmission frequency band, a serving radio terminal (UE 2-1) has transmitted, to the radio base station (eNB 1-1), an SRS by use of only a frequency band that is a part of the SRS transmission frequency band, the radio base station (eNB 1-1) allocates a downstream resource block the frequency band of which is included in the SRS transmission frequency band and further the frequency band of which is identical with the frequency band of the SRS received at the latest; then establishes, for the downstream resource block, a transmission weight based on the SRS received at the latest; and then uses the downstream resource block to transmit a radio signal.Type: GrantFiled: August 26, 2011Date of Patent: April 12, 2016Assignee: KYOCERA CorporationInventors: Yoshizo Sato, Nobuaki Takamatsu, Masahiro Yagi, Hiroki Fujita, Masaaki Nakata
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Patent number: 9301194Abstract: An eNB1-1 transmits an RRC Connection Reconfiguration message to UE2-1 to UE2-3, in which SRS parameters and an application timing parameter are set, the SRS parameters differ for each of the UE2-1 to the UE2-3 and the application timing parameter is common in the UE2-1 to the UE2-3. The UE2-1 to the UE2-3 receive the RRC Connection Reconfiguration message and recognize the SRS parameters and the application timing parameter set in the message. Furthermore, when an application timing of the SRS parameter arrives, the UE2-1 to the UE2-3 apply the SRS parameter to the SRS and transmit the SRS.Type: GrantFiled: December 15, 2011Date of Patent: March 29, 2016Assignee: KYOCERA CorporationInventors: Nobuaki Takamatsu, Masahiro Yagi, Yoshizo Sato, Masaaki Nakata, Hiroki Fujita
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Patent number: 9203481Abstract: If the frequency band of an SRS from a serving radio terminal (UE 2-1) is identical with the frequency band of an SRS from a serving radio terminal (UE 2-2), a radio base station (eNB 1-1) transmits, to one of the serving radio terminals (UE 2-1, UE 2-2), an RRC connection reconfiguration message in which transmission halt request information has been set.Type: GrantFiled: August 26, 2011Date of Patent: December 1, 2015Assignee: KYOCERA CorporationInventors: Yoshizo Sato, Masaaki Nakata, Nobuaki Takamatsu, Masahiro Yagi, Hiroki Fujita
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Patent number: 9198165Abstract: A wireless base station (eNB1-1) uses in a differentiated manner, depending on the expected data amount of downlink transmission to the serving wireless terminal UE, the transmission of RRC Connection Reconfiguration messages in which SRS specific transmission request information is set, and the transmission of RRC Connection Reconfiguration messages in which SRS hopping transmission request information is set.Type: GrantFiled: August 26, 2011Date of Patent: November 24, 2015Assignee: KYOCERA CorporationInventors: Yoshizo Sato, Masaaki Nakata, Nobuaki Takamatsu, Masahiro Yagi, Hiroki Fujita
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Patent number: 9155072Abstract: The present invention provides a wireless base station (eNB1-1) that sets a first SRS transmission frequency band as a transmission frequency band for SRS at a first SSF timing and sets the first SRS transmission frequency band as the transmission frequency band for SRS at a second SSF timing, within the time for one frame. In this way, all frequency bands (allocatable frequency bands) for usable downstream resource blocks in wireless communications between the wireless base station (eNB1-1) and a serving wireless terminal (UE2-1) are covered by the first SRS transmission frequency band and the second SRS transmission frequency band.Type: GrantFiled: August 26, 2011Date of Patent: October 6, 2015Assignee: KYOCERA CorporationInventors: Yoshizo Sato, Masaaki Nakata, Nobuaki Takamatsu, Masahiro Yagi, Hiroki Fujita
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Patent number: 9144073Abstract: Disclosed is a wireless base station (eNB1-1) that sets to each serving wireless terminal (UE2) different frequency bandwidths (SRS transmission frequency bandwidths) that are used when said serving wireless terminals (UE2) send SRS at a predetermined special sub-frame timing. In addition the wireless base station (eNB1-1) sends the set SRS transmission frequency bandwidth information to the serving wireless terminals (UE2).Type: GrantFiled: July 15, 2011Date of Patent: September 22, 2015Assignee: KYOCERA CorporationInventors: Masahiro Yagi, Masaaki Nakata, Nobuaki Takamatsu, Hiroki Fujita, Yoshizo Sato
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Patent number: 9025554Abstract: A transmission path state estimation unit estimates a state of a transmission path to a wireless terminal based on a DRS (Demodulation Reference Signal) included in uplink user data received from the wireless terminal when a re-sending request is received after transmission of an SRS is stopped. A transmission unit forms directivity of a plurality of antennas based on the estimated state of the transmission path and transmits downlink user data.Type: GrantFiled: August 4, 2011Date of Patent: May 5, 2015Assignee: KYOCERA CorporationInventors: Yoshizo Sato, Masaaki Nakata, Nobuaki Takamatsu, Masahiro Yagi, Hiroki Fujita
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Patent number: 8995408Abstract: A resource determination unit determines at least a part of an uplink part in a switch subframe as a second resource for a wireless terminal to transmit an SRS and determines at least a part within any uplink subframe as a third resource for the wireless terminal to transmit uplink user data including a DRS for a prescribed period. A transmission path state estimation unit estimates a state of a transmission path to the wireless terminal based on the DRS included in the uplink user data after the third resource is determined. A resource notification unit forms antenna directivity based on the estimated state of the transmission path and transmits a control message for notifying the wireless terminal of the determined second resource.Type: GrantFiled: August 5, 2011Date of Patent: March 31, 2015Assignee: KYOCERA CorporationInventors: Yoshizo Sato, Masaaki Nakata, Nobuaki Takamatsu, Masahiro Yagi, Hiroki Fujita
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Publication number: 20130308594Abstract: An eNB1-1 transmits an RRC Connection Reconfiguration message to UE2-1 to UE2-3, in which SRS parameters and an application timing parameter are set, the SRS parameters differ for each of the UE2-1 to the UE2-3 and the application timing parameter is common in the UE2-1 to the UE2-3. The UE2-1 to the UE2-3 receive the RRC Connection Reconfiguration message and recognize the SRS parameters and the application timing parameter set in the message. Furthermore, when an application timing of the SRS parameter arrives, the UE2-1 to the UE2-3 apply the SRS parameter to the SRS and transmit the SRS.Type: ApplicationFiled: December 15, 2011Publication date: November 21, 2013Applicant: KYOCERA CORPORATIONInventors: Nobuaki Takamatsu, Masahiro Yagi, Yoshizo Sato, Masaaki Nakata, Hiroki Fujita
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Publication number: 20130273973Abstract: If the frequency band of an SRS from a serving radio terminal (UE 2-1) is identical with the frequency band of an SRS from a serving radio terminal (UE 2-2), a radio base station (eNB 1-1) transmits, to one of the serving radio terminals (UE 2-1, UE 2-2), an RRC connection reconfiguration message in which transmission halt request information has been set.Type: ApplicationFiled: August 26, 2011Publication date: October 17, 2013Applicant: KYOCERA CORPORATIONInventors: Yoshizo Sato, Masaaki Nakata, Nobuaki Takamatsu, Masahiro Yagi, Hiroki Fujita
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Publication number: 20130230018Abstract: Disclosed is a wireless base station (eNB1-1) that sets to each serving wireless terminal (UE2) different frequency bandwidths (SRS transmission frequency bandwidths) that are used when said serving wireless terminals (UE2) send SRS at a predetermined special sub-frame timing. In addition the wireless base station (eNB1-1) sends the set SRS transmission frequency bandwidth information to the serving wireless terminals (UE2).Type: ApplicationFiled: July 15, 2011Publication date: September 5, 2013Applicant: KYOCERA CORPORATIONInventors: Masahiro Yagi, Masaaki Nakata, Nobuaki Takamatsu, Hiroki Fujita, Yoshizo Sato
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Publication number: 20130225186Abstract: In a case where, although a radio base station (eNB 1-1) has established an SRS transmission frequency band, a serving radio terminal (UE 2-1) has transmitted, to the radio base station (eNB 1-1), an SRS by use of only a frequency band that is a part of the SRS transmission frequency band, the radio base station (eNB 1-1) allocates a downstream resource block the frequency band of which is included in the SRS transmission frequency band and further the frequency band of which is identical with the frequency band of the SRS received at the latest; then establishes, for the downstream resource block, a transmission weight based on the SRS received at the latest; and then uses the downstream resource block to transmit a radio signal.Type: ApplicationFiled: August 26, 2011Publication date: August 29, 2013Applicant: KYOCERA CORPORATIONInventors: Yoshizo Sato, Nobuaki Takamatsu, Masahiro Yagi, Hiroki Fujita, Masaaki Nakata
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Publication number: 20130215851Abstract: A wireless base station (eNB1-1) uses in a differentiated manner, depending on the expected data amount of downlink transmission to the serving wireless terminal UE, the transmission of RRC Connection Reconfiguration messages in which SRS specific transmission request information is set, and the transmission of RRC Connection Reconfiguration messages in which SRS hopping transmission request information is set.Type: ApplicationFiled: August 26, 2011Publication date: August 22, 2013Applicant: KYOCERA CORPORATIONInventors: Yoshizo Sato, Masaaki Nakata, Nobuaki Takamatsu, Masahiro Yagi, Hiroki Fujita
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Publication number: 20130215847Abstract: A transmission path state estimation unit estimates a state of a transmission path to a wireless terminal based on a DRS (Demodulation Reference Signal) included in uplink user data received from the wireless terminal when a re-sending request is received after transmission of an SRS is stopped. A transmission unit forms directivity of a plurality of antennas based on the estimated state of the transmission path and transmits downlink user data.Type: ApplicationFiled: August 4, 2011Publication date: August 22, 2013Applicant: KYOCERA CorporationInventors: Yoshizo Sato, Masaaki Nakata, Nobuaki Takamatsu, Masahiro Yagi, Hiroki Fujita
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Publication number: 20130201948Abstract: The present invention provides a wireless base station (eNB1-1) that sets a first SRS transmission frequency band as a transmission frequency band for SRS at a first SSF timing and sets the first SRS transmission frequency band as the transmission frequency band for SRS at a second SSF timing, within the time for one frame. In this way, all frequency bands (allocatable frequency bands) for usable downstream resource blocks in wireless communications between the wireless base station (eNB1-1) and a serving wireless terminal (UE2-1) are covered by the first SRS transmission frequency band and the second SRS transmission frequency band.Type: ApplicationFiled: August 26, 2011Publication date: August 8, 2013Applicant: KYOCERA CORPORATIONInventors: Yoshizo SATO, Masaaki NAKATA, Nobuaki TAKAMATSU, Masahiro YAGI, Hiroki FUJITA
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Publication number: 20130176977Abstract: A resource determination unit determines at least a part of an uplink part in a switch subframe as a second resource for a wireless terminal to transmit an SRS and determines at least a part within any uplink subframe as a third resource for the wireless terminal to transmit uplink user data including a DRS for a prescribed period. A transmission path state estimation unit estimates a state of a transmission path to the wireless terminal based on the DRS included in the uplink user data after the third resource is determined. A resource notification unit forms antenna directivity based on the estimated state of the transmission path and transmits a control message for notifying the wireless terminal of the determined second resource.Type: ApplicationFiled: August 5, 2011Publication date: July 11, 2013Applicant: KYOCERA CORPORATIONInventors: Yoshizo Sato, Masaaki Nakata, Nobuaki Takamatsu, Masahiro Yagi, Hiroki Fujita
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Patent number: 7624971Abstract: A device includes a housing having a hollow center and a case having a hollow fiber membrane. The case is at least partially located inside the hollow center of the housing. A first gas flow flows to the hollow center through an introducing pipe and exits the housing via a discharging pipe. A second gas flow flows through the hollow fiber membrane in the case. The first gas flow enters the case through an inflow opening in the case from a gap between a wall of the housing and the case and exits the case through a discharging opening in the case to the gap between the wall of the housing and the case. The introducing pipe is located adjacent to a dividing wall. The device provides a humidifying property by transferring moisture from the first gas flow to the second gas flow or vice versa.Type: GrantFiled: August 3, 2006Date of Patent: December 1, 2009Assignee: Nissan Motor Co., Ltd.Inventors: Takayuki Terasaki, Masahiro Usuda, Masaaki Nakata
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Publication number: 20090130495Abstract: A device includes a housing having a hollow center and a case having a hollow fiber membrane. The case is at least partially located inside the hollow center of the housing. A first gas flow flows to the hollow center through an introducing pipe and exits the housing via a discharging pipe. A second gas flow flows through the hollow fiber membrane in the case. The first gas flow enters the case through an inflow opening in the case from a gap between a wall of the housing and the case and exits the case through a discharging opening in the case to the gap between the wall of the housing and the case. The introducing pipe is located adjacent to a dividing wall. The device provides a humidifying property by transferring moisture from the first gas flow to the second gas flow or vice versa.Type: ApplicationFiled: August 3, 2006Publication date: May 21, 2009Applicant: NISSAN MOTOR CO., LTD.Inventors: Takayuki Terasaki, Masahiro Usuda, Masaaki Nakata