Patents by Inventor Motoshi Tamura

Motoshi Tamura 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).

  • Patent number: 10666551
    Abstract: A C-plane device in a path control system comprises: a storage unit storing designation information designating search key information of a node used as a search key determining a transmission destination and part information indicating a packet part in which the search key information is included; and a setting unit, in a case in which a new node is connected to the U-plane device, acquires node information relating to the new node, extracts search key information of the new node on the basis of the acquired node information and the stored designation information, and, in a case in which, in a packet received by the U-plane device, the search key information of the new node is included in a packet part indicated by the part information, sets a transmission destination of the packet for each of at least a part of U-plane devices.
    Type: Grant
    Filed: February 13, 2017
    Date of Patent: May 26, 2020
    Assignee: NTT DOCOMO, INC.
    Inventors: Youhei Katayama, Ryousuke Kurebayashi, Shigeru Iwashina, Motoshi Tamura
  • Patent number: 10492134
    Abstract: In a communications system (1A), a communication service which is utilized by UE (10) is specified from among a first communication service and a second communication service, an address of a SGW (80) corresponding to a service type of the first communication service is retrieved when the specified communication service is the first communication service with reference to information in which the specified communication service and the address of the SGW (80) that transmits and receives data for utilizing the communication service are correlated with each other, and a SGW (80) other than a first communication control device is retrieved when the specified communication service is the second communication service.
    Type: Grant
    Filed: September 13, 2016
    Date of Patent: November 26, 2019
    Assignee: NTT DOCOMO, INC.
    Inventors: Takuya Shimojou, Masayoshi Shimizu, Motoshi Tamura, Ashiq Khan, Srisakul Thakolsri, Malla Reddy Sama, Wolfgang Kiess, Sergio Beker
  • Patent number: 10481935
    Abstract: A virtual server for executing a communication process is implemented on virtualization resources without being inefficient even when different virtualization resource management schemes are included. A management system included in a mobile communication system is configured to include an NFVI which is virtualization resources including a physical server in which a VNF to execute a communication process is generated and includes a VNFM for managing the VNF, a VIM for managing the virtualization resources of the NFVI, and an orchestrator for managing all the virtualization resources of the NFVI, wherein the orchestrator includes a virtual server generation request section configured to input detailed information for implementing the VNF retained by the VNFM, rewrite the input detailed information according to a virtualization resource management scheme by the VIM, and request the VIM to generate the VNF.
    Type: Grant
    Filed: December 25, 2014
    Date of Patent: November 19, 2019
    Assignee: NTT DOCOMO, INC.
    Inventors: Shigeru Iwashina, Takashi Shimizu, Motoshi Tamura, Tetsuya Nakamura, Hidenori Asaba, Ashiq Khan, Takahiro Yamazaki, Takeo Yamasaki, Joan Triay Marques, David Perez Caparros, Bertrand Souville
  • Patent number: 10481953
    Abstract: Leakage of detailed information for implementing a virtual server to execute a communication process on virtualization resources is prevented. There is provided a management system (10) included in a mobile communication system (1) configured to include an NFVI (60) which is virtualization resources including a physical server generated by a VNF (70) to execute a communication process, and the system includes a VNFM (30) for managing the VNF (70), a VIM (40) for managing the virtualization resources of the NFVI (60), an orchestrator (20) for managing all the virtualization resources of the NFVI (60), wherein the VNFM (30) includes a retention section (31) configured to retain detailed information for implementing the VNF (70) and a virtual server generation request section (32) configured to request the VIM (40) to generate the VNF (70) using the detailed information.
    Type: Grant
    Filed: December 25, 2014
    Date of Patent: November 19, 2019
    Assignee: NTT DOCOMO, INC.
    Inventors: Shigeru Iwashina, Takashi Shimizu, Motoshi Tamura, Tetsuya Nakamura, Hidenori Asaba, Ashiq Khan, Takahiro Yamazaki, Takeo Yamasaki, Joan Triay Marques, David Perez Caparros, Bertrand Souville
  • Patent number: 10484913
    Abstract: Provided are a communication control method, a communication control device, and a communication system that can appropriately change a device on a network that executes request processing from a terminal. In a node changing device 10, a sequence monitoring unit 12 detects handover of a UE 90. When the handover is detected, a placement calculation unit 14 acquires node information in the vicinity of a destination and activates nodes in the vicinity based on the node information. In this manner, upon detecting movement of a communication terminal, the node changing device 10 activates nodes in the vicinity of the destination of the communication terminal, and it is thereby possible to prevent an increase in communication delay even when the communication terminal is moved.
    Type: Grant
    Filed: June 24, 2016
    Date of Patent: November 19, 2019
    Assignee: NTT DOCOMO, INC.
    Inventors: Takeo Yamasaki, Motoshi Tamura, Shigeru Iwashina, Lan Chen
  • Patent number: 10374937
    Abstract: An integrated control device, to implement automatic address assignment in a path spanning two or more administrative domains, and to implement communication between a plurality of administrative domains, acquires definition information that defines protocols used in each administrative domain from an inter-administrative domain communication protocol stack list table, acquires available addresses of each protocol in each administrative domain which can be used for communication between the respective administrative domains from an available address range table, acquires a communication route from a starting point administrative domain to an ending point administrative domain, specifies domains that use the respective protocols on the communication route by using the definition information, assigns protocol information such as available addresses of each protocol between the specified domains by using an available address range table and notifies the assigned address to each domain.
    Type: Grant
    Filed: September 30, 2015
    Date of Patent: August 6, 2019
    Assignee: NTT DOCOMO, INC.
    Inventors: Youhei Katayama, Motoshi Tamura, Ashiq Khan, Takuya Shimojou
  • Patent number: 10356663
    Abstract: A slice allocating method capable of dynamically changing a service and a slice to be allocated to the service is provided. An OSS/BSS holds allocation service information in which a service to which a slice has been allocated is associated with the slice. Further, a request reception unit of the OSS/BSS receives an SLA-SL which is a requirement of a function. An allocation determination unit determines a slice having an SLA-SL corresponding to a service requirement of the received service. When the service of the slice determined by the allocation determination unit is the same as the service associated with the slice in advance, an allocation request unit reallocates the service to the determined slice.
    Type: Grant
    Filed: September 15, 2016
    Date of Patent: July 16, 2019
    Assignee: NTT DOCOMO, INC.
    Inventors: Takuya Shimojou, Motoshi Tamura, Masayoshi Shimizu, Ashiq Khan, Shigeru Iwashina
  • Patent number: 10285063
    Abstract: A service allocation determination device and service allocation determination method that can allocate a service to a slice without wasteful use of resources. In a BSS/OSS, a service request receiving unit receives service requirements and information indicating functions for implementing a service. An allocation determination unit, using the service requirements and slice information, determines whether to allocate the service to an existing slice or to a new slice. An allocation request unit makes a request to allocate the service to the slice determined by the allocation determination unit. In this case, because the BSS/OSS 10 determines whether to allocate the service to an existing slice or to a new slice based on the service requirements and the attribute of the existing slice, the service can be allocated to a slice without wasteful use of resources.
    Type: Grant
    Filed: March 11, 2016
    Date of Patent: May 7, 2019
    Assignee: NTT DOCOMO, INC.
    Inventors: Takuya Shimojou, Motoshi Tamura, Yusuke Takano, Ashiq Khan, Shigeru Iwashina
  • Patent number: 10284495
    Abstract: A slice management system and a slice management method that can dynamically adjust the amount of resources when the amount of resources is insufficient to create a slice. A storing unit of a NFVO stores slice utilization status information. In a BSS/OSS, an allocation determination unit determines to create a new slice or extend an existing slice, and when resources for creation of a new slice or extension of an existing slice are insufficient, a resource change determination unit determines a slice for reduction based on the slice utilization status information. A resource request unit of the NFVO reduces resources of the determined slice.
    Type: Grant
    Filed: March 11, 2016
    Date of Patent: May 7, 2019
    Assignee: NTT DOCOMO, INC.
    Inventors: Takuya Shimojou, Yusuke Takano, Motoshi Tamura, Ashiq Khan
  • Publication number: 20190014504
    Abstract: A slice allocating method capable of dynamically changing a service and a slice to be allocated to the service is provided. An OSS/BSS holds allocation service information in which a service to which a slice has been allocated is associated with the slice. Further, a request reception unit of the OSS/BSS receives an SLA-SL which is a requirement of a function. An allocation determination unit determines a slice having an SLA-SL corresponding to a service requirement of the received service. When the service of the slice determined by the allocation determination unit is the same as the service associated with the slice in advance, an allocation request unit reallocates the service to the determined slice.
    Type: Application
    Filed: September 15, 2016
    Publication date: January 10, 2019
    Applicant: NTT DOCOMO, INC.
    Inventors: Takuya SHIMOJOU, Motoshi TAMURA, Masayoshi SHIMIZU, Ashiq KHAN, Shigeru IWASHINA
  • Publication number: 20180367447
    Abstract: A C-plane device in a path control system comprises: a storage unit storing designation information designating search key information of a node used as a search key determining a transmission destination and part information indicating a packet part in which the search key information is included; arid a setting unit, in a case in which a new node is connected to the U-plane device, acquires node information relating to the new node, extracts search key information of the new node on the basis of the acquired node information and the stored designation information, and, in a case in which, in a packet received by the u-plane device, the search key information of the new node is included in a packet part indicated by the part information, sets a transmission destination of the packet for each of at least a part of U-plane devices.
    Type: Application
    Filed: February 13, 2017
    Publication date: December 20, 2018
    Applicant: NTT DOCOMO, INC.
    Inventors: Youhei KATAYAMA, Ryousuke KUREBAYASHI, Shigeru IWASHINA, Motoshi TAMURA
  • Patent number: 10140112
    Abstract: In an update management system including a plurality of servers executing a communication service, a server not connected to a network in which a new version of an application is operated is generated in parallel with a server in which an old version of the application is operated, and old and new correspondence data between an old version server and a new version server is generated and used to execute switching from the old version server to the new version server in a flow on the network and to execute switching-back to the old version server by referring to the old and new correspondence data at the time of occurrence of fault in a new version.
    Type: Grant
    Filed: February 13, 2015
    Date of Patent: November 27, 2018
    Assignee: NTT DOCOMO, INC.
    Inventors: Yusuke Takano, Takashi Shimizu, Motoshi Tamura, Hidenori Asaba, Takeo Yamasaki, Masaaki Kosugi
  • Publication number: 20180227841
    Abstract: In a communications system (1A), a communication service which is utilized by UE (10) is specified from among a first communication service and a second communication service, an address of a SGW (80) corresponding to a service type of the first communication service is retrieved when the specified communication service is the first communication service with reference to information in which the specified communication service and the address of the SGW (80) that transmits and receives data for utilizing the communication service are correlated with each other, and a SGW (80) other than a first communication control device is retrieved when the specified communication service is the second communication service.
    Type: Application
    Filed: September 13, 2016
    Publication date: August 9, 2018
    Applicant: NTT DOCOMO, INC.
    Inventors: Takuya SHIMOJOU, Masayoshi SHIMIZU, Motoshi TAMURA, Ashiq KHAN, Srisakul THAKOLSRI, Malla Reddy SAMA, Wolfgang KIESS, Sergio BEKER
  • Publication number: 20180192330
    Abstract: Provided are a communication control method, a communication control device, and a communication system that can appropriately change a device on a network that executes request processing from a terminal. In a node changing device 10, a sequence monitoring unit 12 detects handover of a UE 90. When the handover is detected, a placement calculation unit 14 acquires node information in the vicinity of a destination and activates nodes in the vicinity based on the node information. In this manner, upon detecting movement of a communication terminal, the node changing device 10 activates nodes in the vicinity of the destination of the communication terminal, and it is thereby possible to prevent an increase in communication delay even when the communication terminal is moved.
    Type: Application
    Filed: June 24, 2016
    Publication date: July 5, 2018
    Applicant: NTT DOCOMO, INC.
    Inventors: Takeo YAMASAKI, Motoshi TAMURA, Shigeru IWASHINA, Lan CHEN
  • Publication number: 20180041904
    Abstract: A service allocation determination device and service allocation determination method that can allocate a service to a slice without wasteful use of resources. In a BSS/OSS, a service request receiving unit receives service requirements and information indicating functions for implementing a service. An allocation determination unit, using the service requirements and slice information, determines whether to allocate the service to an existing slice or to a new slice. An allocation request unit makes a request to allocate the service to the slice determined by the allocation determination unit. In this case, because the BSS/OSS 10 determines whether to allocate the service to an existing slice or to a new slice based on the service requirements and the attribute of the existing slice, the service can be allocated to a slice without wasteful use of resources.
    Type: Application
    Filed: March 11, 2016
    Publication date: February 8, 2018
    Applicant: NTT DOCOMO, INC.
    Inventors: Takuya SHIMOJOU, Motoshi TAMURA, Yusuke TAKANO, Ashiq KHAN, Shigeru IWASHINA
  • Publication number: 20170214603
    Abstract: An integrated control device, to implement automatic address assignment in a path spanning two or more administrative domains, and to implement communication between a plurality of administrative domains, acquires definition information that defines protocols used in each administrative domain from an inter-administrative domain communication protocol stack list table, acquires available addresses of each protocol in each administrative domain which can be used for communication between the respective administrative domains from an available address range table, acquires a communication route from a starting point administrative domain to an ending point administrative domain, specifies domains that use the respective protocols on the communication route by using the definition information, assigns protocol information such as available addresses of each protocol between the specified domains by using an available address range table and notifies the assigned address to each domain.
    Type: Application
    Filed: September 30, 2015
    Publication date: July 27, 2017
    Applicant: NTT DOCOMO, INC.
    Inventors: Youhei KATAYAMA, Motoshi TAMURA, Ashiq KHAN, Takuya SHIMOJOU
  • Publication number: 20170208019
    Abstract: A slice management system and a slice management method that can dynamically adjust the amount of resources when the amount of resources is insufficient to create a slice. A storing unit of a NFVO stores slice utilization status information. In a BSS/OSS, an allocation determination unit determines to create a new slice or extend an existing slice, and when resources for creation of a new slice or extension of an existing slice are insufficient, a resource change determination unit determines a slice for reduction based on the slice utilization status information. A resource request unit of the NFVO reduces resources of the determined slice.
    Type: Application
    Filed: March 11, 2016
    Publication date: July 20, 2017
    Applicant: NTT DOCOMO, INC.
    Inventors: Takuya SHIMOJOU, Yusuke TAKANO, Motoshi TAMURA, Ashiq KHAN
  • Publication number: 20170206115
    Abstract: A system and a method that can allocate a service to a slice without wasteful use of resources. A storing unit stores a function connection table. A function information acquisition unit acquires the function connection information, and a function extraction unit extracts a common function to a plurality of slices by using the function connection information. A slice having the extracted function is created by a resource request unit and a function addition request unit. A service allocation unit generates, for the created slice, function connection information based on function information indicating the extracted function and execution device information indicating a device that executes the function. The service allocation unit rewrites connection device information in each of function connection information of slices having the common function into execution device information in the generated function connection information.
    Type: Application
    Filed: March 11, 2016
    Publication date: July 20, 2017
    Applicant: NTT DOCOMO, INC.
    Inventors: Takuya SHIMOJOU, Yusuke TAKANO, Motoshi TAMURA, Ashiq KHAN
  • Publication number: 20170123847
    Abstract: A controller includes circuitry configured to: receive a creation instruction to create a target node; transmit identification information of the target node included in the creation instruction to a CookBook and receive target node configuration information including identification information and a scenario of a plurality of functional blocks (FBs) as a response based on the transmission; transmit an arrangement instruction to arrange the plurality of FBs in combination, including the identification information of the plurality of FBs included in target node configuration information, to a Repository that stores FBs or a Platform in which the target node is arranged; and transmit a setting instruction to set a scenario included in the target node configuration information to the plurality of FBs arranged based on the arrangement instruction.
    Type: Application
    Filed: June 29, 2015
    Publication date: May 4, 2017
    Applicant: NTT DOCOMO, INC.
    Inventors: Takuya SHIMOJOU, Ashiq KHAN, Motoshi TAMURA
  • Patent number: 9641698
    Abstract: An object of the invention is to provide a communication service with high utilization efficiency. A mobile communication network distribution system includes: an acquisition unit that acquires condition information; a determination unit that determines a degenerate mobile communication network which provides a function satisfying a functional requirement based on the condition information acquired by the acquisition unit among a plurality of mobile communication networks to be a connection destination mobile communication network which is a connection destination of the UE; and a distribution unit that distributes the connection destination of the mobile communication terminal to the connection destination mobile communication network determined by the determination unit.
    Type: Grant
    Filed: April 26, 2013
    Date of Patent: May 2, 2017
    Assignee: NTT DOCOMO, INC.
    Inventors: Motoshi Tamura, Shigeru Iwashina, Takahiro Yamazaki, Bunpei Yatsu, Tetsuya Nakamura, Takashi Shimizu