Patents by Inventor Hideyuki Matsutani
Hideyuki Matsutani 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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Publication number: 20160270084Abstract: Object is to perform appropriate communication control even if a size of “UE-EUTRA-Capability” is increased. A mobile communication method according to the present invention includes a mobile station (UE) notifying a radio base station (eNB) of “UE-EUTRA-Capability”, the radio base station (eNB) deleting, when a size of the “UE-EUTRA-Capability” exceeds a size that can be stored in the radio base station (eNB) or a mobility management node (MME), a predetermined capability from the “UE-EUTRA-Capability”, and the radio base station (eNB) notifying the mobility management node (MME) of a capability deleted from the “UE-EUTRA-Capability” or a remaining capability that is not deleted from the “UE-EUTRA-Capability”.Type: ApplicationFiled: October 22, 2014Publication date: September 15, 2016Applicant: NTT DOCOMO, INC.Inventors: Yusuke Sasaki, Kenji Fukazawa, Yasuhiro Kawabe, Hideyuki Matsutani, Yuichiro Nakamura, Wuri Andarmawanti Hapsari
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Patent number: 9445310Abstract: During a transition procedure from a first communication system to a second communication system, when the priority of a second communication call, whose setup is requested, is the first priority, the second communication system does not set up the bearer of a first communication call between the second communication system and the mobile communication terminal, and notifies the first communication system that the setup of the first communication is not possible, but the setup of the second communication call is possible. When notified that the setup of the first communication is not possible, but the setup of the second communication call is possible, the first communication system aborts the handover procedure, and instructs the mobile communication terminal to switch to the second communication system by another procedure.Type: GrantFiled: July 2, 2010Date of Patent: September 13, 2016Assignee: NTT DOCOMO, INC.Inventors: Kenichiro Aoyagi, Yuichiro Nakamura, Hideyuki Matsutani, Mikio Iwamura, Takahiro Hayashi, Kazunori Obata
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Patent number: 9326198Abstract: A UE 300 is connectable to a first radio communication system and a second radio communication system which differs from the first radio communication system and uses multiple frequency bands. The UE 300 receives RRC CONNECTION REJECT which gives an instruction to switch from the first radio communication system to the second radio communication system and an indication on multiple switching target frequencies included in the frequency bands used by the second radio communication system, and, if the multiple switching target frequencies include an unavailable frequency at which the UE 300 is incapable of transmission/reception, searches for only a cell of a switching target frequency among the multiple switching target frequencies exclusive of the unavailable frequency.Type: GrantFiled: January 16, 2012Date of Patent: April 26, 2016Assignee: NTT DOCOMO, INC.Inventors: Yuichiro Nakamura, Kenichiro Aoyagi, Hideyuki Matsutani
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Patent number: 9247475Abstract: A radio control apparatus determines a call type of a communication terminal, and transmits a release redirection control signal to the communication terminal. When the call type is a general call, the release redirection signal not including broadcast information is transmitted to the communication terminal. When the call type is an important communication call, the release redirection control signal including the broadcast information is transmitted to the communication terminal.Type: GrantFiled: November 12, 2012Date of Patent: January 26, 2016Assignee: NTT DOCOMO, INC.Inventors: Yuichiro Nakamura, Kenichiro Aoyagi, Hideyuki Matsutani, Kouichi Morikawa
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Patent number: 9144021Abstract: A controller in a mobile communication system includes a management unit (151) configured to manage a resource usage condition in the mobile communication system and a determination unit (152) configured to determine to which an idle state or a power saving state different from the idle state a user equipment (10) is to transition after completion of communication of a data signal depending on the resource usage condition, and the state determined by the determination unit (152) is indicated to the user equipment (10).Type: GrantFiled: April 12, 2011Date of Patent: September 22, 2015Assignee: NTT DOCOMO, INC.Inventors: Kenichiro Aoyagi, Yasuhiro Kawabe, Yuichiro Nakamura, Hideyuki Matsutani
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Patent number: 9124376Abstract: A communication device includes a network side communication unit that receives emergency information from an information broadcasting node; and a UE side communication unit that communicates a communication signal with user equipment (UE) through a radio base station. The UE side communication unit broadcasts a Secondary Notification signal including the emergency information, subsequent to broadcasting a Primary Notification signal providing notice of broadcasting of the emergency information, and individually transmitting a command signal for transition of an RRC protocol state or switching to another cell to the UE. The transition of the RRC protocol state is from a state where reception of the emergency information is disabled to a state where reception of the emergency information is enabled, and the other cell is such that the UE can receive the Secondary Notification signal, irrespective of the RRC protocol state of the UE.Type: GrantFiled: June 4, 2012Date of Patent: September 1, 2015Assignee: NTT DOCOMO, INC.Inventors: Kenichiro Aoyagi, Sadayuki Abeta, Yasuyuki Watanabe, Hideyuki Matsutani
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Patent number: 9071941Abstract: A mobile communication system 100 includes a specific cell configured to allow a specific user to be provided with a service and to allow a non-specific user other than the specific user to be provided with a limited service. The mobile communication system 100 includes a management unit 23 configured to manage a presence state of the non-specific user in the specific cell in addition to a presence state of the specific user in the specific cell.Type: GrantFiled: December 21, 2010Date of Patent: June 30, 2015Assignee: NTT DOCOMO, INC.Inventors: Kenichiro Aoyagi, Yasuhiro Kawabe, Hideyuki Matsutani, Yuichiro Nakamura
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Patent number: 8953558Abstract: The first communication system is configured to determine whether or not to provide information that instructs the UE 10 to connect to the second communication system, based on a subscriber identifier allocated to the UE 10. The subscriber identifier is configured to identify whether or not the UE 10 is allowed to utilize the second communication system.Type: GrantFiled: November 5, 2010Date of Patent: February 10, 2015Assignee: NTT DOCOMO, INC.Inventors: Kenichiro Aoyagi, Yuichiro Nakamura, Yasuhiro Kawabe, Hideyuki Matsutani
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Patent number: 8885566Abstract: A controller in a mobile communication system includes a management unit (151) configured to manage a resource usage condition in the mobile communication system and a determination unit (152) configured to determine a timer value for determining a frequency of transmitting a state transition request signal for causing a user equipment to transition to a power saving state after completion of communication of a data signal depending on the resource usage condition, and the timer value determined by the determination unit (152) is broadcast to the user equipment.Type: GrantFiled: April 12, 2011Date of Patent: November 11, 2014Assignee: NTT DoCoMo, Inc.Inventors: Kenichiro Aoyagi, Yasuhiro Kawabe, Hideyuki Matsutani, Yuichiro Nakamura
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Patent number: 8824399Abstract: A mobile communication method according to the present invention includes the steps of: after a mobile station UE having RRC connection with the radio network controller RNC gets out of the coverage of the mobile communication system of WCDMA scheme, performing location registration to the mobile communication system of LTE scheme, issuing a notification to the radio network controller RNC by the exchange apparatus SGSN upon reception of predetermined signal, the notification implying that the mobile station UE performs the location registration to the mobile communication system of LTE scheme; and the radio network controller RNC releasing the resources for RRC connection without transmitting a signal to release the resources to the mobile station UE in response to the notification from the exchange apparatus SGSN.Type: GrantFiled: August 20, 2010Date of Patent: September 2, 2014Assignee: NTT Docomo, Inc.Inventors: Kenichiro Aoyagi, Yasuhiro Kawabe, Yuichiro Nakamura, Hideyuki Matsutani
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Publication number: 20140242996Abstract: A radio control apparatus determines a call type of a communication terminal, and transmits a release redirection control signal to the communication terminal. When the call type is a general call, the release redirection signal not including broadcast information is transmitted to the communication terminal. When the call type is an important communication call, the release redirection control signal including the broadcast information is transmitted to the communication terminal.Type: ApplicationFiled: November 12, 2012Publication date: August 28, 2014Applicant: NTT DOCOMO, INC.Inventors: Yuichiro Nakamura, Kenichiro Aoyagi, Hideyuki Matsutani, Kouichi Morikawa
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Publication number: 20140128119Abstract: A communication device includes a network side communication unit that receives emergency information from an information broadcasting node; a UE side communication unit that communicates a communication signal with user equipment through a radio base station; and a determination unit that determines whether to allow state transition, when the UE side communication unit receives a request signal requesting the state transition of an RRC protocol state from the user equipment, subsequent to broadcasting a Primary Notification signal providing notice of broadcasting of the emergency information. When the state transition is from a state in which receiving of the emergency information is enabled to a state in which receiving of the emergency information is disabled, the determination unit determines to disallow the state transition, and broadcasts a Secondary Notification signal including the emergency information.Type: ApplicationFiled: June 4, 2012Publication date: May 8, 2014Applicant: NTT DOCOMO, INC.Inventors: Kenichiro Aoyagi, Sadayuki Abeta, Yasuyuki Watanabe, Hideyuki Matsutani
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Publication number: 20140113582Abstract: A communication device includes a network side communication unit that receives emergency information from an information broadcasting node; and a UE side communication unit that communicates a communication signal with user equipment (UE) through a radio base station. The UE side communication unit broadcasts a Secondary Notification signal including the emergency information, subsequent to broadcasting a Primary Notification signal providing notice of broadcasting of the emergency information, and individually transmitting a command signal for transition of an RRC protocol state or switching to another cell to the UE. The transition of the RRC protocol state is from a state where reception of the emergency information is disabled to a state where reception of the emergency information is enabled, and the other cell is such that the UE can receive the Secondary Notification signal, irrespective of the RRC protocol state of the UE.Type: ApplicationFiled: June 4, 2012Publication date: April 24, 2014Applicant: NTT DOCOMO, INC.Inventors: Kenichiro Aoyagi, Sadayuki Abeta, Yasuyuki Watanabe, Hideyuki Matsutani
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Publication number: 20130316711Abstract: A UE 300 is connectable to a first radio communication system and a second radio communication system which differs from the first radio communication system and uses multiple frequency bands. The UE 300 receives RRC CONNECTION REJECT which gives an instruction to switch from the first radio communication system to the second radio communication system and an indication on multiple switching target frequencies included in the frequency bands used by the second radio communication system, and, if the multiple switching target frequencies include an unavailable frequency at which the UE 300 is incapable of transmission/reception, searches for only a cell of a switching target frequency among the multiple switching target frequencies exclusive of the unavailable frequency.Type: ApplicationFiled: January 16, 2012Publication date: November 28, 2013Applicant: NTT DOCOMO, INC.Inventors: Yuichiro Nakamura, Kenichiro Aoyagi, Hideyuki Matsutani
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Publication number: 20130310047Abstract: An RNC 200 includes a cell information acquisition unit 201 configured to acquire cell information of a first cell and a second cell, a threshold determination unit 203 configured to determine, based on the acquired cell information, a cell reselection threshold which causes the mobile station to reselect the second cell in place of the first cell and to camp on the second cell, and a camp on cell instruction unit 205 configured to broadcast, to the mobile station, system information in which the determined cell reselection threshold or a camp on frequency determined based on the cell reselection threshold is set.Type: ApplicationFiled: December 27, 2011Publication date: November 21, 2013Applicant: NTT DOCOMO, INC.Inventors: Kenichiro Aoyagi, Yasuyuki Watanabe, Hideyuki Matsutani, Kiminobu Sugano, Yuichiro Nakamura
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Publication number: 20130267231Abstract: The UE 300 includes a message reception unit 303 configured to receive a command that RAB 500a, RAB 500b established between the UE 300 and the first radio communication system be relocated at the second radio communication system or a command to replace a configuration of the RAB 500a, 500b when the UE 300 executes a handover from the first radio communication system to the second radio communication system, and a radio access bearer establishment unit 305 configured to release an undesignated radio access bearer not designated in the relocation command or the replacement command received by the message reception unit 303, if the undesignated radio access bearer is established.Type: ApplicationFiled: October 28, 2011Publication date: October 10, 2013Applicant: NTT DOCOMO, INC.Inventors: Kenichiro Aoyagi, Hideyuki Matsutani, Kiminobu Sugano, Yuichiro Nakamura
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Patent number: 8463275Abstract: In a mobile communication system, definite resources in radio sectors are allocated to more users in an aspect that the users hardly feel stress during communication. When a call corresponds to an active call based on an active connection request that has been generated by a user's operation (that is, transmitting and obtaining delivery information of pull-type by means of arrows AC, DL or the like), as a trigger, more resources (communication rate is higher) are allocated to the call. When the call corresponds to a non-active call (that is, receiving and obtaining delivery information of push-type by means of an arrow SU or the like), fewer resources (communication rate is lower) are allocated to the call.Type: GrantFiled: November 6, 2008Date of Patent: June 11, 2013Assignee: NTT DoCoMo, Inc.Inventors: Kazunori Obata, Hideyuki Matsutani
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Publication number: 20130051227Abstract: A controller in a mobile communication system includes a management unit (151) configured to manage a resource usage condition in the mobile communication system and a determination unit (152) configured to determine to which an idle state or a power saving state different from the idle state a user equipment (10) is to transition after completion of communication of a data signal depending on the resource usage condition, and the state determined by the determination unit (152) is indicated to the user equipment (10).Type: ApplicationFiled: April 12, 2011Publication date: February 28, 2013Applicant: NTT DOCOMO, INC.Inventors: Kenichiro Aoyagi, Yasuhiro Kawabe, Yuichiro Nakamura, Hideyuki Matsutani
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Publication number: 20130040698Abstract: One aspect of the present invention relates to a mobile station having abilities of communicating with a first network and a second network wherein the first network and the second network use mutually different radio access technologies including a receiving unit configured to receive broadcast information of the second network from the first network, a storage unit configured to store the received broadcast information of the second network and a pre-redirection information setting unit configured to, when the broadcast information of the second network is stored in the storage unit, set pre-redirection information included in a radio connection request message to a predefined value.Type: ApplicationFiled: April 20, 2011Publication date: February 14, 2013Applicant: NTT DOCOMO, INC.Inventors: Yuichiro Nakamura, Kenichiro Aoyagi, Hideyuki Matsutani, Kiminobu Sugano
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Publication number: 20130028084Abstract: A controller in a mobile communication system includes a management unit (151) configured to manage a resource usage condition in the mobile communication system and a determination unit (152) configured to determine a timer value for determining a frequency of transmitting a state transition request signal for causing a user equipment to transition to a power saving state after completion of communication of a data signal depending on the resource usage condition, and the timer value determined by the determination unit (152) is broadcast to the user equipment.Type: ApplicationFiled: April 12, 2011Publication date: January 31, 2013Applicant: NTT DOCOMO, INC.Inventors: Kenichiro Aoyagi, Yasuhiro Kawabe, Hideyuki Matsutani, Yuichiro Nakamura