公开(公告)号：US20160057037A1

公开(公告)日：2016-02-25

申请号：US14784372

申请日：2014-04-18

Applicant: NEC CORPORATION

Inventor： Toru OSUGA

IPC: H04L12/26 ,  H04W28/10

CPC classification number: H04L43/0829 ,  H04L43/0835 ,  H04W28/10

Abstract: To provide a data transmission device for effectively improving throughput (transmission efficiency) regardless of whether a physical bandwidth in a network varies frequently; the data transmission device for transmitting data to a user terminal via a network and controlling subsequent transmitting operations by correlating delay of a packet pertaining to this transmission with network information includes: a variation detection circuit that detects, on the basis of the delay and the network information, that a minimum value of the delay has increased; and an alteration processing circuit that calculates, when the increase is detected by the variation detection circuit, the increased minimum delay value by using data pertaining to a specific packet, and updating a current minimum delay value with the calculated value.

Abstract translation: 提供一种用于有效地提高吞吐量（传输效率）的数据传输设备，而不管网络中的物理带宽是否频繁变化; 用于经由网络向用户终端发送数据并通过将与该传输有关的分组的延迟与网络信息相关联来控制后续发送操作的数据发送装置包括：变化检测电路，其基于延迟和网络进行检测 信息，延迟的最小值增加; 以及改变处理电路，其通过使用与特定分组有关的数据，通过变化检测电路检测到增加的最小延迟值，并且利用计算出的值更新当前最小延迟值。

公开(公告)号：US20200267083A1

公开(公告)日：2020-08-20

申请号：US16067882

申请日：2017-01-04

Applicant: NEC CORPORATION

Inventor： Toru OSUGA

IPC: H04L12/801 ,  H04L12/851 ,  H04L12/26

Abstract: In order to enable controlling a transmit data volume within a proper range depending on variations in a communication environment, suppressing deterioration in utilization efficiency of a transmission bandwidth, and improving user perceived quality, a transmit data volume control method according to an exemplary aspect of the invention includes: acquiring a communication quality of a network, estimating a congestion degree of the network, determining a target congestion degree being a target of the congestion degree, based on the communication quality, and determining a transmit data volume, based on the congestion degree and the target congestion degree.

公开(公告)号：US20170366374A1

公开(公告)日：2017-12-21

申请号：US15521380

申请日：2015-10-30

Applicant: NEC Corporation

Inventor： Toru OSUGA ,  Takahiro NOBUKIYO

IPC: H04L12/66 ,  H04W88/16

CPC classification number: H04L12/66 ,  H04L47/14 ,  H04L47/31 ,  H04W28/0284 ,  H04W88/16

Abstract: A gateway apparatus connected to another different network. The gateway apparatus includes: extraction unit that extracts first information set in a first packet(s) that has been received from a relay apparatus relaying a packet(s) between the gateway apparatus and a terminal or from a node arranged in the different network; setting unit that sets, based on the first information, second information in a second packet(s) in a protocol(s) in a layer(s) different from a layer(s) of a protocol(s) of the first packet(s); and forwarding unit that forwards the second packet(s) in which the second information is set to the node or to the relay apparatus.

公开(公告)号：US20160323167A1

公开(公告)日：2016-11-03

申请号：US15105996

申请日：2014-12-24

Applicant: NEC CORPORATION

Inventor： Toru OSUGA

IPC: H04L12/26 ,  H04W28/02

CPC classification number: H04L43/0852 ,  H04W28/0236

Abstract: The purpose of the present invention is to appropriately detect propagation delay and the like (minimum delay value) in order to appropriately control a transmission rate of information. Upon input of a measured value of delay that is smaller than a value set as a minimum delay value, a minimum value setting unit (2) updates the set minimum delay value to the measured value of the delay. Delay refers to the time from transmission of information to arrival at the destination thereof, or the round trip time from transmission of information to receipt of reply information from the destination receiving the information by the originator. A timing determination unit (3) determines a review timing for reviewing the set minimum delay value on the basis of the measured value of the delay. A minimum value review unit (4) updates (reviews) the set minimum delay value at the determined review timing. The minimum delay value to be updated is a value calculated using the measured value of the measured delay or a preset initial value.

Abstract translation: 本发明的目的是适当地检测传播延迟等（最小延迟值），以适当地控制信息的传输速率。 当输入的测量值小于设定为最小延迟值的值时，最小值设定单元（2）将设定的最小延迟值更新为延迟的测量值。 延迟是指从发送到目的地的信息的时间，或从发送方接收信息的目的地从发送信息到接收到回复信息的往返时刻。 定时确定单元（3）基于延迟的测量值来确定用于检查设置的最小延迟值的检查定时。 最低价值审查单位（4）在确定的审查时间更新（评论）设定的最小延迟值。 要更新的最小延迟值是使用测量延迟的测量值或预设的初始值计算的值。

公开(公告)号：US20150350097A1

公开(公告)日：2015-12-03

申请号：US14653333

申请日：2013-12-17

Applicant: NEC CORPORATION

Inventor： Toru OSUGA

IPC: H04L12/825 ,  H04L12/801

CPC classification number: H04L47/25 ,  H04L12/6418 ,  H04L43/0852 ,  H04L47/11 ,  H04L47/12 ,  H04L47/14 ,  H04L47/283 ,  H04L47/30 ,  H04L69/16 ,  H04W28/0236

Abstract: A data transmission device, method, and program therefor that effectively increase throughput even when a delay increase occurs due to a cause other than congestion in the network. The data transmission device (11) is provided with a transmission unit (60) which transmits to a user terminal (30) data requested over a network (20). The data transmission device includes a transmission rate control element (51C) which controls the transmission rate on the basis of the degree of congestion detected by a congestion detection element (51B) during delay measurement by a delay measurement processing unit (40), and a reference value correction processing element (51D) which temporarily corrects the detection criteria used by the congestion detection element; when it has been determined that the delay has increased due to a cause other than congestion. This reference value correction element increases the accuracy of detection processing by the congestion detection element, thereby improving throughput.

Abstract translation: 即使由于网络中的拥塞以外的原因引起延迟增加，数据传输设备，方法和程序也能有效地提高吞吐量。 数据传输装置（11）具有发送单元（60），用于向用户终端（30）发送通过网络（20）请求的数据。 数据传输装置包括：传输速率控制元件（51C），其通过延迟测量处理单元（40）在延迟测量期间基于由拥塞检测元件（51B）检测到的拥塞程度来控制传输速率;以及 参考值校正处理元件（51D），其临时校正由所述拥塞检测元件使用的检测标准; 当确定延迟由于除了拥塞之外的原因而增加时。 该参考值校正元件增加了拥塞检测元件的检测处理的精度，从而提高了吞吐量。

公开(公告)号：US20220329538A1

公开(公告)日：2022-10-13

申请号：US17641885

申请日：2020-09-09

Applicant: NEC CORPORATION ,  NATIONAL INSTITUE OF INFORMATION AND COMMUNICATIONS TECHNOLOGY

Inventor： Takeo ONISHI ,  Taketoshi NAKAJIMA ,  Toru OSUGA ,  Satoko ITAYA ,  Kenichi MARUHASHI ,  Fumihide KOJIMA

IPC: H04L47/762 ,  H04L43/0894

Abstract: A communication system according to the present disclosure includes: a required band calculation unit (12, 41) configured to calculate a required band for a plurality of flows received by a bridge apparatus (3), in which, for a flow including burst data among the plurality of flows, the required band calculation unit (12, 41) calculates the required band for the flow based on a data size of the burst data and an allowable delay of the flow; and a speed ratio calculation unit (32, 43) configured to calculate a relative ratio of communication speeds of the plurality of flows based on the required band for the plurality of flows. The bridge apparatus (3) transfers the plurality of flows to a data receiving apparatus (2) according to the relative ratio of the communication speeds.

公开(公告)号：US20210273889A1

公开(公告)日：2021-09-02

申请号：US17258299

申请日：2019-06-27

Applicant: NEC Corporation

Inventor： Toru OSUGA

IPC: H04L12/825 ,  H04L12/841 ,  H04L12/823 ,  H04L12/801

Abstract: A communication control apparatus includes: a first communication processing section configured to receive one or more packets from a transmitting apparatus, the one or more packets being transmitted from the transmitting apparatus to a receiving apparatus and being unable to be generated and modified at a relay point; and a second communication processing section configured to transmit the one or more packets to the receiving apparatus, wherein the second communication processing section receives, from the receiving apparatus, one or more acknowledgement packets for the one or more packets, the one or more acknowledgement packets being unable to be generated and modified at a relay point, and wherein the first communication processing section transmits the one or more acknowledgement packets to the transmitting apparatus, the communication control apparatus further including a control section configured to control the one or more packets or the one or more acknowledgement packets.

公开(公告)号：US20200187054A1

公开(公告)日：2020-06-11

申请号：US16619215

申请日：2018-06-20

Applicant: NEC CORPORATION

Inventor： Toru OSUGA

IPC: H04W28/10 ,  H04W28/02

Abstract: In order to enable to control a transmission data amount within an appropriate range by an easier method, and achieve throughput improvement, shortening of delay, and suppression of packet retransmission in all communication resources, a data transmission method includes: estimating a congestion degree of at least a part of communication sessions in which a communication resource to be used in an own session to be used in transmission of transmission data is shared, based on communication quality being measurable a data transmission device and relating to the transmission of the transmission data, determining a transmission data amount, based on the congestion degree of the communication session, and performing the transmission of the transmission data, based on the transmission data amount.

公开(公告)号：US20170245178A1

公开(公告)日：2017-08-24

申请号：US15519864

申请日：2015-10-30

Applicant: NEC Corporation

Inventor： Takahiro NOBUKIYO ,  Takamichi INOUE ,  Daisuke OHTA ,  Toru OSUGA

IPC: H04W28/14 ,  H04L12/863 ,  H04L12/801

CPC classification number: H04W28/14 ,  H04L47/245 ,  H04L47/34 ,  H04L47/62 ,  H04W28/0268 ,  H04W28/0273 ,  H04W72/10 ,  H04W80/06

Abstract: Provided is a radio base station, etc. that realize transmission control in view of QoE. According to a first aspect of the present invention, there is provided a radio base station that receives a packet(s) transmitted from a packet transmission apparatus via a network and transmits the received packet(s) to a wireless terminal(s), the radio base station including: acquisition means that acquires a packet type(s) or a packet identifier(s) set in the packet(s) by the packet transmission apparatus; and control means that performs transmission control to change a transmission order of the packet(s) based on the packet type(s) or the packet identifier(s).