公开(公告)号：US20210243100A1

公开(公告)日：2021-08-05

申请号：US17049683

申请日：2019-03-28

申请人： Nippon Telegraph and Telephone Corporation

发明人： Keisuke Ishibashi ,  Shigeaki Harada ,  Ryoichi Kawahara

IPC分类号： H04L12/26

摘要： A first time series of traffic volume and a first time series of communication quality that are observed in a first communication line in which traffic demand is equal to or greater than a line bandwidth and a second time series of traffic volume and a second time series of communication quality that are observed in a second communication line in which traffic demand is less than a line bandwidth are input to a state space model to estimate values of a parameter group of the state space model, the traffic demand is calculated based on the values of the parameter group, and the state space model is a state space model in which the first time series of traffic volume and the second time series of traffic volume are generated from a third time series indicating cyclicity of traffic common to the first communication line and the second communication line under influence of the first time series of communication quality and the second time series of communication quality on the traffic demand, thereby supporting appropriate band design of an overload line in which traffic demand is equal to or greater than a line bandwidth.

公开(公告)号：US11893417B2

公开(公告)日：2024-02-06

申请号：US17291698

申请日：2019-11-05

申请人： Nippon Telegraph and Telephone Corporation

发明人： Masahiro Kobayashi ,  Shigeaki Harada

IPC分类号： G06F9/46 ,  G06F9/48 ,  G06F9/50

CPC分类号： G06F9/4887 ,  G06F9/5005

摘要： A processing request management apparatus includes: an estimation unit which estimates a time required for processing for each of a plurality of processing requests for which desired processing completion times are designated; and a determination unit which determines an execution order of processing for the plurality of processing requests such that a sum of delays of estimated processing completion times based on the required time with respect to the desired processing completion times for the respective processing requests in the plurality of processing requests is minimized, to increase a likelihood of restrictions with respect to processing requests being satisfied.

公开(公告)号：US11765036B2

公开(公告)日：2023-09-19

申请号：US17769945

申请日：2019-10-29

申请人： Nippon Telegraph and Telephone Corporation

发明人： Akito Suzuki ,  Shigeaki Harada

IPC分类号： H04L29/08 ,  H04L41/0895 ,  H04L41/16

CPC分类号： H04L41/0895 ,  H04L41/16

摘要： Provided is a control device that includes one or more processors configured to: select an agent gk that executes an action that represents allocation of a virtual network onto a physical network at a time point t from a plurality of agents; observe a state st at the time point t with an input of network configuration information of the physical network, network observation information, and user demand information; select and execute, on basis of an action value function Q representing an expected value of a sum total of a reward received in future, an action atk from possible actions for the agent gk; calculate a reward rt using of the action atk, the state st, and a state st+1 at a time point t+1; and update the action value function Q with use of the action ajk, the state sj, and the state sj+1, where 1≤j≤t is satisfied.

公开(公告)号：US20220094742A1

公开(公告)日：2022-03-24

申请号：US17426392

申请日：2020-01-23

申请人： Nippon Telegraph and Telephone Corporation

发明人： Ryota Nakamura ,  Shigeaki Harada ,  Ken Nishimatsu

IPC分类号： H04L67/1008 ,  H04L41/0803

摘要： A control apparatus configured to allocate a virtual network for providing a network service on a physical network includes: acquisition means for acquiring information indicating an outside temperature of each node included in the physical network, physical resource information of the physical network, information indicating a predicted traffic amount of the physical network, and an allocation request for the virtual network; and calculation means for calculating an optimal allocation of the virtual network using a target function defined using a unit cost defined for each region and for each time slot and a power consumption model taking into consideration the outside temperature and a load rate calculated based on the predicted traffic amount, and a restrictive condition obtained based on the physical resource information and the allocation request.

公开(公告)号：US11201807B2

公开(公告)日：2021-12-14

申请号：US17049683

申请日：2019-03-28

申请人： Nippon Telegraph and Telephone Corporation

发明人： Keisuke Ishibashi ,  Shigeaki Harada ,  Ryoichi Kawahara

IPC分类号： G06F15/16 ,  H04L12/26

摘要： A first time series of traffic volume and a first time series of communication quality that are observed in a first communication line in which traffic demand is equal to or greater than a line bandwidth and a second time series of traffic volume and a second time series of communication quality that are observed in a second communication line in which traffic demand is less than a line bandwidth are input to a state space model to estimate values of a parameter group of the state space model, the traffic demand is calculated based on the values of the parameter group, and the state space model is a state space model in which the first time series of traffic volume and the second time series of traffic volume are generated from a third time series indicating cyclicity of traffic common to the first communication line and the second communication line under influence of the first time series of communication quality and the second time series of communication quality on the traffic demand, thereby supporting appropriate band design of an overload line in which traffic demand is equal to or greater than a line bandwidth.