Ntt Docomo, Inc.

Ntt Mobile Communications Network, Inc.

Ntt Mobile Communications Newtork, Inc.

Motoshi Tamura

Takaaki Sato

Junichiro Hagiwara

Tomoyuki Ohtani

Yasuyuki Watanabe

Kazufumi Yunoki

Katsuhiko Yamagata

Yoshiyuki Yasuda

Mutsumaru Miki

Masafumi Hata

Takuya Hamajima

Kenya Kusunose

Akiko Okamoto

Akihiro Uchikoshi

Daisuke Igarashi

Nobutaka Ishikawa

Nobuhide Uchiyama

Shigeru Iwashina

Hiroki Morikawa

Hiroshi Kawakami

Ashiq Khan

Masatomo Nakano

Takehiro Nakamura

Seizo Onoe

Takashi Shimizu

Akihiro Higashi

Etsuhiro Nakano

Koji Ohno

Tetsuya Nakamura

Takahiro Yamazaki

Takuya Shimojou

Takaaki Satoh

Takeo Yamasaki

Masami Yabusaki

Yusuke Takano

Fumiaki Ishino

Hidenori Asaba

Bunpei Yatsu

Kazuhiro Watanabe

Masayoshi Shimizu

Akimichi Tanabe

Yukichi Saito

Joan Triay Marques

David Perez Caparros

Akiko Nakashima

Takuji Sakaguchi

Tokuro Doi

Hisashi Shimizu

Lan Chen

Akihisa Nakajima

Hiroshi Nakamura

Hideo Morita

Malla Reddy Sama

Srisakul Thakolsri

Masaaki Kosugi

Atsushi Iwasaki

Masahiro Sawada

Bertrand Souville

Youhei Katayama

Shin-ichi Isobe

Akira Kaiyama

Wolfgang Kiess

Masafumi Onuki

Teruki Niwa

Sergio Beker

Tomotaka Yuasa

Takatoshi Okagawa

Hisakazu Uesaka

Daisuke Akiyama

Chikako Tsukada

Makoto Koushiro

Ryousuke Kurebayashi

Aya Hokamura

Hiroaki Amada

Takaaki c/o Ntt Docomo Inc Sato

Tomoyuki c/o Ntt Doco Mo Inc Ohtani

Akiko Green Gables C-101 12-14 Okamoto

Nobutaka 202 Bell Light Nokendai Ishikawa

To make it easier to switch to video that is being viewed by another user, a source data acquisition unit acquires source data of content that is distributed by an apparatus. A video clipping unit clips video in a range specified by a participant's terminal out of 360-degree video indicated by the source data supplied thereto. Upon receiving a range of video specified in association with the participant's terminal, a content distribution unit clips video in the range out of 360-degree video acquired by the source data acquisition unit and distributes the clipped video to the participant's terminal. Also, upon a display switching instruction being made in association with a switching source participant's terminal, the content distribution unit distributes video that is clipped according to a range of video specified in association with a switching destination participant's terminal, to the switching source participant's terminal.

Information processing apparatus

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.

Control node and path control system

In a communications system (A), a communication service which is utilized by UE () is specified from among a first communication service and a second communication service, an address of a SGW () 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 () that transmits and receives data for utilizing the communication service are correlated with each other, and a SGW () other than a first communication control device is retrieved when the specified communication service is the second communication service.

Communication control device selection method and communications system

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, a sequence monitoring unitdetects handover of a UE. When the handover is detected, a placement calculation unitacquires 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 deviceactivates 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.

Communication control method, communication control device, and communication system for causing readiness for movement of a communication terminal

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.

Management system, overall management node, and management method for managing virtualization resources in a mobile communication network

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 () included in a mobile communication system () configured to include an NFVI () which is virtualization resources including a physical server generated by a VNF () to execute a communication process, and the system includes a VNFM () for managing the VNF (), a VIM () for managing the virtualization resources of the NFVI (), an orchestrator () for managing all the virtualization resources of the NFVI (), wherein the VNFM () includes a retention section () configured to retain detailed information for implementing the VNF () and a virtual server generation request section () configured to request the VIM () to generate the VNF () using the detailed information.

Management system, virtual communication-function management node, and management method for managing virtualization resources in a mobile communication network

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.

Domain control method and domain control device

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.

Service allocation determining methid

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/OSSdetermines 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.

Service allocation determination device and service allocation determination method

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.

Slice management system and slice management method for dynamically adjusting resources allocated to a slice based on a resource utilization status

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.

Update management system and update management method

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.

Mobile communication network distribution system and mobile communication network distribution method

A mobile communication system includes an OpenFlow network and CSCFs. A first CSCF comprises a terminal information assigning unit that assigns information of an incoming terminal of a destination of a signal accommodated in a second CSCF to a header part of a signal destined for the second CSCF. The OpenFlow network comprises a storage unit that stores a correspondence relationship between the incoming terminal and a device accommodating the incoming terminal, a terminal information acquisition unit that acquires information of the incoming terminal from the header part of the signal, a transmission destination identification unit that identifies the device that is a transmission destination from the information, and an open flow transmission unit that transmits a signal to the identified device.

Mobile communication system, communication system, node, flow-control network, and communication-control method

A mobile communication system includes a plurality of call-processing servers, a call processing management database that holds data necessary for call processing, and a network manager. The network manager comprises a node state recognition unit that recognizes states of the call-processing servers, and a control unit that determines the call-processing node that processes a call processing request based on the states. The call-processing server comprises a call processing request accepting unit that accepts a call processing request, an acquisition unit that acquires information of a mobile communication terminal related to the call processing request from the database, a call processing unit that performs call processing using the acquired information; and a call processing result storage unit that stores information of a result of the call processing in the database.

Mobile communication system, communication system, control node, call-processing node, and communication control method

When a network pages the temporary user mobile identifier of a mobile station, the mobile station sends a response to the network. Next, the network checks the authenticity of the user using a ciphering key, corresponding to the temporary user mobile identifier and a random number. If the temporary user mobile identifier is authenticated, a normal incoming call acceptance procedure is executed. If the mobile station is authenticated although the temporary user mobile identifier is wrong, the network reassigns a new temporary user mobile identifier to the mobile station and stops the current communication. In communication, the network and the mobile station mutually notify encipherment-onset time and negotiate about encipherment manner with each other. In addition, diversity handover is commenced upon a call attempt. Furthermore, if a branch replacement is necessary, the current branch is replaced by new branches capable of executing the diversity handover. Additionally, when a new call occurs to or from the mobile station capable of treating a plurality of calls simultaneously, the mobile station uses the same branch structure and the same communication frequency band for all of calls. Additionally, when a new call occurs to or from the mobile station capable of treating a plurality of calls simultaneously, a branch structure and a communication frequency band, which can continue all of the calls, are selected and used. Therefore, the mobile communications system is suitable for transmission of various sorts of data in accordance with the development of multimedia.

Method and system for mobile communications

Growing community of inventors

Yokosuka, Japan

Motoshi Tamura