公开(公告)号：US20220345396A1

公开(公告)日：2022-10-27

申请号：US17640570

申请日：2020-07-21

Applicant: NEC Corporation

Inventor： Anan SAWABE

IPC: H04L45/00 ,  H04L45/02 ,  H04L45/48

Abstract: In order to provide an information processing apparatus that easily finds a network configuration corresponding to characteristics of a terminal to be connected, the information processing apparatus includes a model generation section and a specifying section, the model generation section being configured to generate a traffic pattern generation model, based on learning of a traffic pattern of a terminal, and the specifying section being configured to specify traffic for an output of the traffic pattern generation model, based on virtual traffic in the traffic pattern generation model. The information processing apparatus may further include a packet generation section configured to generate a packet, based on the specified traffic.

公开(公告)号：US20240283747A1

公开(公告)日：2024-08-22

申请号：US18024907

申请日：2022-06-30

Applicant: NEC Corporation

Inventor： Anan SAWABE ,  Yusake CHINOHARA

IPC: H04L47/56 ,  H04L43/087

CPC classification number: H04L47/56 ,  H04L43/087

Abstract: In order to make it possible to control a delay jitter in packet transmission control, a packet control system (1) includes: an acquisition unit (11) that acquires a packet associated with a delay jitter which is requested; an enqueue unit (12) that enqueues the packet into a queue at a level which corresponds to the delay jitter associated with the packet among a plurality of queues which are classified into levels such that delay jitters are different for the respective levels; and a dequeue unit (13) that dequeues, in accordance with a dequeue timing specified for the queue, the packet which has been enqueued into the queue at the level corresponding to the delay jitter associated with the packet, and that sends the packet which has been dequeued to a network.

公开(公告)号：US20220345376A1

公开(公告)日：2022-10-27

申请号：US17641178

申请日：2019-09-30

Applicant: NEC Corporation

Inventor： Anan SAWABE ,  Takanori IWAI

IPC: H04L41/16 ,  H04L41/0813

Abstract: In order to enable communication control to promptly comply with a communication environment, a system according to an aspect of the present disclosure includes: a first adjusting means for adjusting a parameter for controlling communication in a communication network by using a parameter determining method; and a second adjusting means for adjusting the parameter by using reinforcement learning, after adjusting the parameter using the parameter determining method.

公开(公告)号：US20250030642A1

公开(公告)日：2025-01-23

申请号：US18024709

申请日：2022-06-30

Applicant: NEC Corporation

Inventor： Anan SAWABE ,  Yusuke Shinohara

IPC: H04L47/52 ,  H04L43/0852

Abstract: In order to strategically utilize a network even when a band usable for the network varies, a packet control system (1) includes: an acquisition unit (11) that acquires a packet associated with a sending timing; an enqueue unit (12) that enqueues the packet into any of a plurality of queues in accordance with the sending timing associated with the packet; and a sending unit (17) that dequeues a packet from each of the plurality of queues in accordance with a dequeue timing specified for the queue and that sends the packet to a network. The number of packets to be sent to the network by the sending unit (17) is restricted in accordance with a band usable for the network, and the sending unit (17) sends, after the sending timing associated with the packet, a packet that is not sent at the sending timing.

公开(公告)号：US20230319369A1

公开(公告)日：2023-10-05

申请号：US18021293

申请日：2020-08-26

Applicant: NEC Corporation

Inventor： Anan SAWABE ,  Takanori IWAI

IPC: H04N21/647 ,  H04N21/24

CPC classification number: H04N21/64738 ,  H04N21/2402 ,  H04N21/6473 ,  H04N21/64776 ,  H04N21/64792

Abstract: A video quality estimation apparatus (100) according to the present disclosure includes a first collection unit (101) configured to collect network quality information about a network pertaining to distribution of a video, a second collection unit (102) configured to collect video quality information about the video, and an estimation unit (103) configured to estimate a first bit rate corresponding to a resolution of the video based on the network quality information and the video quality information.

公开(公告)号：US20220329494A1

公开(公告)日：2022-10-13

申请号：US17642719

申请日：2019-09-30

Applicant: NEC Corporation

Inventor： Anan SAWABE ,  Takanori IWAI ,  Kosei KOBAYASHI

IPC: H04L41/16 ,  H04L43/0876

Abstract: In order to more easily perform communication control suitable for a communication environment in a communication network, a system according to an aspect of the present disclosure includes: an obtaining means for obtaining state information related to a state of a communication network; and a selecting means for selecting one of a plurality of machine learning based controllers for controlling communication in the communication network, based on the state information.

公开(公告)号：US20220256206A1

公开(公告)日：2022-08-11

申请号：US17630614

申请日：2019-08-08

Applicant: NEC Corporation

Inventor： Anan SAWABE

IPC: H04N21/238 ,  H04N21/414

Abstract: In order to provide a communication control method that enables resolution of a distributed moving image to be changed, a communication apparatus includes a first estimation section, and a calculation section. The first estimation section estimates a first resolution of a distributed moving image, based on traffic of the distributed moving image. The calculation section calculates a first bit rate for distributing the distributed moving image at a second resolution, based on the first resolution. The communication apparatus may further include a control section that performs traffic control of the distributed moving image, based on the first bit rate. The first estimation section may estimate the first resolution by using statistical information on resolutions of a plurality of distributed moving images.

公开(公告)号：US20210021495A1

公开(公告)日：2021-01-21

申请号：US17040859

申请日：2018-11-01

Applicant: NEC CORPORATION

Inventor： Anan SAWABE ,  Takanori IWAI

IPC: H04L12/26 ,  H04L12/24 ,  G06N7/00

Abstract: To realize real-time estimation when estimating the type and state of an application from time-series data of communication traffic. A communication traffic analyzing apparatus of the present invention has a state transition model generating unit configured to generate a probabilistic state transition model from time-series data of communication traffic, at each predetermined timing, a state transition model update unit configured to update a state transition model when a difference between the state transition models at two timings generated by the state transition model generating unit is greater than or equal to a predetermined difference and a communication state of network satisfies a predetermined condition, and an application type and state estimating unit configured to estimate a type and a state of an application using the updated state transition model.

公开(公告)号：US20180375780A1

公开(公告)日：2018-12-27

申请号：US16062199

申请日：2016-12-16

Applicant: NEC Corporation

Inventor： Anan SAWABE

IPC: H04L12/841 ,  H04L12/801 ,  H04L1/18

Abstract: The present invention addresses the problem of providing a receiver or the like capable of reducing variation that occurs when estimating available bandwidth for a network in which delay times fluctuate significantly. To solve the problem, a target packet group comprising target packets used to calculate estimates of available bandwidth, is specified from among a delayed packet group comprising delayed packets among those received, delayed when passing through a network. The target packet group is specified using a delay time based on calculations and a delay time obtained through measurement. Furthermore, a target time is calculated as an estimate of the time required for the target packet group to pass through the network, and a target data volume is calculated as an estimate of the total volume of data received from each target packet constituting the target packet group.

公开(公告)号：US20250055804A1

公开(公告)日：2025-02-13

申请号：US18717495

申请日：2021-12-22

Applicant: NEC Corporation

Inventor： Anan SAWABE ,  Yusuke SHINOHARA ,  Takanori IWAI

IPC: H04L47/283

Abstract: A communication apparatus (100) according to the present disclosure includes: a communication unit (101) configured to transmit a downlink packet via a network and receive an ACK packet for the downlink packet via the network; an acquisition unit (102) configured to acquire an RTT for the downlink packet already transmitted by the communication unit (101), the RTT being time from when the communication unit (101) transmits the downlink packet to when the communication unit (101) receives the ACK packet, and a transmission time of the downlink packet already transmitted by the communication unit (101); and a transmission timing control unit (103) configured to control transmission timing of the downlink packet by the communication unit (101) on the basis of the RTT of the downlink packet already transmitted by the communication unit (101) and a transmission time of the downlink packet already transmitted by the communication unit (101).