Patents by Inventor Kayo Motohashi
Kayo Motohashi 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: 9307511Abstract: A base station registers a mobile station subjected to the call reception control of the base station. When connection between the mobile station registered by the base station and a higher-level device of the base station is terminated after detecting that the mobile station is located in a communication area of the base station, the base station causes the higher-level device to maintain information indicating that the mobile station is located in the communication area, without notifying the higher-level device of termination of the connection. When a call addressed to the mobile station is detected after termination of the connection between the mobile station and the higher-level device, the base station gives a notification about detection of the call.Type: GrantFiled: October 8, 2013Date of Patent: April 5, 2016Assignee: FUJITSU LIMITEDInventor: Kayo Motohashi
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Patent number: 9020506Abstract: A base station controller that manages a plurality of cells includes a receiving part configured to receive, from another base station controller that manages a cell sharing a communication area with each of the plurality of cells, identification information of a cell group to which a cell formed by a base station of connection destination candidate of a mobile station connected to a base station under control of the another base station controller belongs, and a control part configured to exercise control to transmit a message requesting connection to the mobile station to each base station forming the cells contained in the cell group.Type: GrantFiled: August 5, 2009Date of Patent: April 28, 2015Assignee: Fujitsu LimitedInventors: Masanori Hashimoto, Kayo Motohashi, Yasuo Tezuka, Nao Miyazaki
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Patent number: 8837364Abstract: A base station device including: a receiver that receives data from a terminal device; and a processor that performs setting for the reception of data from the terminal device, and deactivates a management of the terminal device after performing setting, wherein the receiver receives data from the terminal device in a state of deactivated management.Type: GrantFiled: November 30, 2011Date of Patent: September 16, 2014Assignee: Fujitsu LimitedInventors: Kayo Motohashi, Masanori Hashimoto, Tetsuo Tomita
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Publication number: 20140128065Abstract: A base station registers a mobile station subjected to the call reception control of the base station. When connection between the mobile station registered by the base station and a higher-level device of the base station is terminated after detecting that the mobile station is located in a communication area of the base station, the base station causes the higher-level device to maintain information indicating that the mobile station is located in the communication area, without notifying the higher-level device of termination of the connection. When a call addressed to the mobile station is detected after termination of the connection between the mobile station and the higher-level device, the base station gives a notification about detection of the call.Type: ApplicationFiled: October 8, 2013Publication date: May 8, 2014Applicant: FUJITSU LIMITEDInventor: Kayo MOTOHASHI
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Patent number: 8331316Abstract: A mobile communication system has a plurality of nodes, hierarchically connected to each other, including a source base station and a target base station. A U-plane management station includes detecting unit detecting a handover for the mobile terminal, and a Bi-casting unit redundantly transmitting, when detecting the handover for the mobile terminal, the same user data addressed to the mobile terminal toward both of the source base station and the target base station. The target base station includes a retaining unit receiving the user data addressed to the mobile terminal, which is transmitted by the U-plane management station, and retaining the user data, and a wireless transmitting unit wirelessly transmitting, when the mobile terminal is wirelessly connected after moving, the user data requested by the mobile terminal in the user data retained by the retaining unit and addressed to the mobile terminal.Type: GrantFiled: September 9, 2008Date of Patent: December 11, 2012Assignee: Fujitsu LimitedInventors: Masanori Hashimoto, Yasuo Tezuka, Nao Miyazaki, Kayo Motohashi
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Publication number: 20120076079Abstract: A base station device including: a receiver that receives data from a terminal device; and a processor that performs setting for the reception of data from the terminal device, and deactivates a management of the terminal device after performing setting, wherein the receiver receives data from the terminal device in a state of deactivated management.Type: ApplicationFiled: November 30, 2011Publication date: March 29, 2012Applicant: FUJITSU LIMITEDInventors: Kayo MOTOHASHI, Masanori HASHIMOTO, Tetsuo TOMITA
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Patent number: 8131309Abstract: A plurality of base transceiver stations and at least one extension device are connected, via an IP network that uses internet protocol. The extension device shares resources of the base transceiver stations by arbitrary changing a connection relationship between the base transceiver stations and the extension devices. When a mobile terminal communicates with a core network, the extension device uses the resources of at least one base transceiver stations according to fluctuation in the amount of traffic.Type: GrantFiled: June 20, 2006Date of Patent: March 6, 2012Assignee: Fujitsu LimitedInventors: Nao Miyazaki, Masanori Hashimoto, Hidekazu Kuniyoshi, Yasuo Tezuka, Kayo Motohashi, Satoshi Maruyama, Takashi Kanda, Tadanori Yokosawa
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Publication number: 20110092207Abstract: In a radio network control device, if TMSI included in a connection request is not stored in a subscriber-information storage unit, IMSI corresponding to the TMSI is acquired from a higher-level device and access control is performed for radio communications between a mobile terminal and a base station.Type: ApplicationFiled: December 23, 2010Publication date: April 21, 2011Applicant: FUJITSU LIMITEDInventors: Kayo MOTOHASHI, Masanori HASHIMOTO, Yasuo TEZUKA, Nao MIYAZAKI, Hidekazu KUNIYOSHI
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Publication number: 20110002272Abstract: A mobile communications network is a communications network that performs both circuit switching and packet switching. A data communications network is a communications network that performs packet switching. A communication apparatus is capable of connecting to the mobile communications network and the data communications network. The communication apparatus includes a communication control unit which obtains access from a mobile station to the mobile communications network, terminates the access whose call type is packet-switched call, and replaces that access with access to the data communications network.Type: ApplicationFiled: September 17, 2010Publication date: January 6, 2011Applicant: FUJITSU LIMITEDInventors: Kayo Motohashi, Masanori Hashimoto, Yasuo Tezuka, Nao Miyazaki, Hidekazu Kuniyoshi
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Patent number: 7822004Abstract: In a network system including a radio base station to be accommodated in a mobile telephone network through an IP network, the radio base station, when receiving a calling request from a calling terminal, specifies a called terminal of the calling request. If the called terminal can receive the calling request by using another radio base station different from the base station connected to the IP network, it is tried to establish a data communication line, in which the radio base station and the another radio base station are connected through the IP network not by way of the mobile telephone network, so as to exchange the communication data between the calling terminal and the called terminal.Type: GrantFiled: April 20, 2007Date of Patent: October 26, 2010Assignee: Fujitsu LimitedInventors: Masanori Hashimoto, Yasuo Tezuka, Akio Yaba, Kayo Motohashi
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Publication number: 20100173661Abstract: A communication server communicates with a radio base station that is capable of being connected to a fixed line by a user. A receiving unit receives station identification information identifying the radio base station and line identification information identifying a fixed line to which the radio base station is connected. An acquiring unit acquires authentication information indicating preliminarily set correlations between the station identification information and the line identification information. A determining unit determines whether a correlation between the station identification information and the line identification information received by the receiving unit coincides with a correlation indicated in the authentication information acquired by the acquiring unit. A determination result output unit outputs a determination result of the determining unit.Type: ApplicationFiled: November 17, 2009Publication date: July 8, 2010Applicant: FUJITSU LIMITEDInventors: Nao Miyazaki, Masanori Hashimoto, Kayo Motohashi, Yasuo Tezuka
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Patent number: 7751376Abstract: In a network system including base stations accommodated in a mobile phone network through an IP network, when a mobile phone terminal as a calling terminal makes a calling request and the calling request from the calling terminal is sent through a source base station to the mobile phone network and then from the mobile phone network through a destination base station to a mobile phone terminal as a called terminal, it is judged whether the source base station and the destination base station are both connected to the mobile phone network through the same IP network, and when the source base station and the destination base station are both connected to the mobile phone network through the same IP network, a data transmission path is established between the calling terminal and the called terminal that directly connects the source base station and the destination base station through the same IP network and without via the mobile phone network.Type: GrantFiled: March 22, 2005Date of Patent: July 6, 2010Assignee: Fujitsu LimitedInventors: Masanori Hashimoto, Yasuo Tezuka, Akio Yaba, Kayo Motohashi
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Publication number: 20100056145Abstract: A base station controller that manages a plurality of cells includes a receiving part configured to receive, from another base station controller that manages a cell sharing a communication area with each of the plurality of cells, identification information of a cell group to which a cell formed by a base station of connection destination candidate of a mobile station connected to a base station under control of the another base station controller belongs, and a control part configured to exercise control to transmit a message requesting connection to the mobile station to each base station forming the cells contained in the cell group.Type: ApplicationFiled: August 5, 2009Publication date: March 4, 2010Applicant: FUJITSU LIMITEDInventors: Masanori Hashimoto, Kayo Motohashi, Yasuo Tezuka, Nao Miyazaki
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Publication number: 20090193128Abstract: A call connection processing method that uses SIP (Signal Invitation Protocol) to perform call connection between user terminals and a backbone network via an access network is disclosed. In the method the user terminal instructs a proxy apparatus in the access network to send specified SIP signaling messages to the backbone network in place of the user terminal; by following that instruction, the proxy apparatus does not send a certain SIP message of the SIP signaling messages to the user terminal, or sends another SIP messages to the backbone network in place of the user terminal.Type: ApplicationFiled: April 1, 2009Publication date: July 30, 2009Inventors: Kayo MOTOHASHI, Yasuo Tezuka, Masanori Hashimoto, Nao Miyazaki
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Publication number: 20090141684Abstract: A mobile communication system has a plurality of nodes, hierarchically connected to each other, including a source base station and a target base station. A U-plane management station includes detecting unit detecting a handover for the mobile terminal, and a Bi-casting unit redundantly transmitting, when detecting the handover for the mobile terminal, the same user data addressed to the mobile terminal toward both of the source base station and the target base station. The target base station includes a retaining unit receiving the user data addressed to the mobile terminal, which is transmitted by the U-plane management station, and retaining the user data, and a wireless transmitting unit wirelessly transmitting, when the mobile terminal is wirelessly connected after moving, the user data requested by the mobile terminal in the user data retained by the retaining unit and addressed to the mobile terminal.Type: ApplicationFiled: September 9, 2008Publication date: June 4, 2009Inventors: Masanori Hashimoto, Yasuo Tezuka, Nao Miyazaki, Kayo Motohashi
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Publication number: 20070232353Abstract: A plurality of base transceiver stations and at least one extension device are connected, via an IP network that uses internet protocol. The extension device shares resources of the base transceiver stations by arbitrary changing a connection relationship between the base transceiver stations and the extension devices. When a mobile terminal communicates with a core network, the extension device uses the resources of at least one base transceiver stations according to fluctuation in the amount of traffic.Type: ApplicationFiled: June 20, 2006Publication date: October 4, 2007Inventors: Nao Miyazaki, Masanori Hashimoto, Hidekazu Kuniyoshi, Yasuo Tezuka, Kayo Motohashi, Satoshi Maruyama, Takashi Kanda, Tadanori Yokosawa
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Publication number: 20070197209Abstract: In a network system including a radio base station to be accommodated in a mobile telephone network through an IP network, the radio base station, when receiving a calling request from a calling terminal, specifies a called terminal of the calling request. If the called terminal can receive the calling request by using another radio base station different from the base station connected to the IP network, it is tried to establish a data communication line, in which the radio base station and the another radio base station are connected through the IP network not by way of the mobile telephone network, so as to exchange the communication data between the calling terminal and the called terminal.Type: ApplicationFiled: April 20, 2007Publication date: August 23, 2007Inventors: Masanori Hashimoto, Yasuo Tezuka, Akio Yaba, Kayo Motohashi
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Publication number: 20060084470Abstract: In a network system including base stations accommodated in a mobile phone network through an IP network, when a mobile phone terminal as a calling terminal makes a calling request and the calling request from the calling terminal is sent through a source base station to the mobile phone network and then from the mobile phone network through a destination base station to a mobile phone terminal as a called terminal, it is judged whether the source base station and the destination base station are both connected to the mobile phone network through the same IP network, and when the source base station and the destination base station are both connected to the mobile phone network through the same IP network, a data transmission path is established between the calling terminal and the called terminal that directly connects the source base station and the destination base station through the same IP network and without via the mobile phone network.Type: ApplicationFiled: March 22, 2005Publication date: April 20, 2006Inventors: Masanori Hashimoto, Yasuo Tezuka, Akio Yaba, Kayo Motohashi