公开(公告)号：US20160043959A1

公开(公告)日：2016-02-11

申请号：US14885574

申请日：2015-10-16

Applicant: FUJI XEROX CO., LTD.

Inventor： Roshan THAPLIYA ,  Chaoxin HU

IPC: H04L12/825 ,  H04L12/26 ,  H04L12/801

CPC classification number: H04L47/25 ,  H04L43/0829 ,  H04L43/087 ,  H04L47/11 ,  H04L47/12 ,  H04L47/263 ,  H04L47/283 ,  Y04S40/168

Abstract: An information terminal 10 successively receives a plurality of packets that configure distribution data from an information distribution server 20, and requests the information distribution server 20 to change a bit rate of the packets that configure the distribution data, if it is judged that congestion occurs in communication with the information distribution server 20 based on a change in time interval from transmission to reception of each of the successively received packets, and if it is judged that a packet loss rate, which is a rate of a loss packet corresponding to a loss included in the packets transmitted from the information distribution server 20 and calculated based on the successively received packets, is increased as compared with a value obtained by multiplying a packet loss rate before the packets that configure the distribution data are received, by a predetermined weight.

Abstract translation: 信息终端10依次从信息分发服务器20接收配置分发数据的多个分组，并且如果判断为发生拥塞，请求信息分发服务器20改变配置分发数据的分组的比特率 基于从发送到每个连续接收的分组的接收的时间间隔的变化，与信息分配服务器20进行通信，并且如果判断为与丢失相对应的丢失分组的速率的分组丢失率 与通过将配置分发数据的分组之间的分组丢失率乘以预定权重而获得的值相比，在从信息分发服务器20发送并且基于连续接收的分组计算的分组中增加。

公开(公告)号：US20160036711A1

公开(公告)日：2016-02-04

申请号：US14879802

申请日：2015-10-09

Applicant: FUJI XEROX CO., LTD.

Inventor： Roshan THAPLIYA ,  Haiyang MA

IPC: H04L12/825 ,  H04L12/26

CPC classification number: H04L47/25 ,  H04L43/0888 ,  H04L43/16

Abstract: An information terminal 10B receives plural UDP packets each having a predetermined data size and sequentially transmitted at a predetermined time interval in a predetermined order; extracts pairs of the UDP packets, in which each of a transmission order and a reception order is continuous and the transmission order and the reception order match with each other, from among the received UDP packets; calculates an evaluation value for evaluation of a delay state of a communication path between an information terminal 10A and the information terminal 10B based on comparison between a reception time interval of the packets in each of the extracted pairs of the UDP packets and the predetermined time interval; and judges whether a bit rate of the UDP packets is available or unavailable based on comparison between the calculated evaluation value and a threshold.

Abstract translation: 信息终端10B接收多个具有预定数据大小的UDP数据包，并按预定顺序按预定的时间间隔顺序发送; 从所接收的UDP分组中提取其中传输顺序和接收顺序中的每一个是连续的并且传输顺序和接收顺序彼此匹配的UDP分组的对; 基于所提取的UDP分组对中的分组的接收时间间隔与预定时间间隔之间的比较，计算用于评估信息终端10A和信息终端10B之间的通信路径的延迟状态的评估值 ; 并且基于所计算的评估值与阈值之间的比较来判断UDP分组的比特率是否可用或不可用。

公开(公告)号：US20150263924A1

公开(公告)日：2015-09-17

申请号：US14712455

申请日：2015-05-14

Applicant: FUJI XEROX CO., LTD.

Inventor： Roshan THAPLIYA

IPC: H04L12/26 ,  H04L12/721 ,  H04W24/08 ,  H04L12/46

CPC classification number: H04L43/0864 ,  H04L12/4641 ,  H04L43/0888 ,  H04L45/26 ,  H04L47/283 ,  H04W24/08

Abstract: There is provided a communication status measurement device wirelessly connected to a public network and communicating with a server connected to the public network through a communication channel determined in advance. A measurement unit repeatedly measures a time since a dummy packet is transmitted to the server until an acknowledgement packet corresponding to the dummy packet is received. A pattern calculation unit calculates a pattern obtained by removing a component at frequencies more than a first frequency from a pattern of variations in a measured value. An RTT acquisition unit that acquires a round trip time, which is used to calculate an actual bandwidth of the communication channel, on a basis of the calculated pattern. An implementation unit implements a virtual private network in the communication status measurement device itself. The dummy packet is transmitted and the acknowledgement packet is received via the virtual private network and the public network.

Abstract translation: 提供了一种无线连接到公共网络并且通过预先确定的通信信道与连接到公共网络的服务器通信的通信状态测量设备。 测量单元重复地测量从虚拟分组被发送到服务器的时间，直到接收到对应于该虚拟分组的确认分组为止。 模式计算单元计算通过从测量值的变化模式中去除多于第一频率的频率的分量而获得的模式。 RTT获取单元，其基于所计算的模式来获取用于计算通信信道的实际带宽的往返时间。 实现单元在通信状态测量设备本身中实现虚拟专用网络。 虚拟分组被发送，并且经由虚拟专用网络和公共网络接收确认分组。

公开(公告)号：US20150237530A1

公开(公告)日：2015-08-20

申请号：US14702026

申请日：2015-05-01

Applicant: FUJI XEROX CO., LTD.

Inventor： Roshan THAPLIYA

IPC: H04W28/08 ,  H04W28/10

CPC classification number: H04L47/24 ,  H04L47/225 ,  H04L47/2408 ,  H04L47/2425 ,  H04L47/29 ,  H04L47/52 ,  H04L47/762 ,  H04Q2213/13164 ,  H04W24/02 ,  H04W28/10

Abstract: A communication management system includes: a communication unit that respectively communicates with an information terminal belonging to one of a plurality of groups, via a communication channel assigned to the group to which the information terminal belongs, from among a plurality of communication channels; a control unit that controls a communication via the communication channel on the basis of a configuration value of bandwidth on the communication channel; and a bandwidth configuration unit that, for each communication channel, configures the configuration value of bandwidth on the communication channel, on the basis of data indicating time transitions of communication traffic volume of the group to which the communication channel is assigned.

Abstract translation: 通信管理系统包括：通信单元，其经由分配给所述信息终端所属的组的通信信道从多个通信信道中分别与属于多个组中的一个组的信息终端进行通信; 控制单元，其基于通信信道上的带宽的配置值来控制经由通信信道的通信; 以及带宽配置单元，对于每个通信信道，基于指示分配了通信信道的组的通信业务量的时间转换的数据，来配置通信信道上的带宽的配置值。