公开(公告)号：US20210117783A1

公开(公告)日：2021-04-22

申请号：US16967463

申请日：2019-02-06

申请人： NIPPON TELEGRAPH AND TELEPHONE CORPORATION

发明人： Kenji KAWAI ,  Junichi KATO ,  Huycu NGO ,  Yuki ARIKAWA ,  Tsuyoshi ITO ,  Takeshi SAKAMOTO

IPC分类号： G06N3/08 ,  G06N3/04 ,  H04L7/00

摘要： Each of distributed processing nodes [n] (n=1, . . . , and N) packetizes pieces of distributed data [m, n] as packets for every M weights w [m] ((m=1, . . . , and M) of a neural network to be learned in an order of numbers m, transmits the packets to a consolidation processing node, receives a packet transmitted from the consolidation processing node to acquire consolidated data R [m] in the order of numbers m and update the weights w [m] of the neural network on the basis of the consolidated data R [m].

公开(公告)号：US20150311980A1

公开(公告)日：2015-10-29

申请号：US14441423

申请日：2013-11-06

申请人： NIPPON TELEGRAPH AND TELEPHONE CORPORATION

发明人： Shigeru KUWANO ,  Jun TERADA ,  Noriko IIYAMA ,  Takeshi SAKAMOTO ,  Nobuyuki TANAKA ,  Satoshi SHIGEMATSU

IPC分类号： H04B10/27 ,  H04J14/08 ,  H04B10/2575

CPC分类号： H04B10/27 ,  H04B10/25752 ,  H04J14/08 ,  H04L12/2861 ,  H04Q11/0067 ,  H04Q2011/0064

摘要： This invention provides a communication system constituted of a higher-network apparatus and a lower-network apparatus connected through a PON system, and an object of the invention is to transfer uplink data from the lower-network apparatus to the higher-network apparatus at high speed so as to meet severe conditions required for a delay time between the higher-network apparatus and the lower-network apparatus.This invention further provides an optical communication method including in order a scheduling execution process in which a higher-network apparatus 1 performs, with respect to one or a plurality of lower-network apparatus 5 communicating with the device 1 itself, scheduling for uplink communication from each of the lower-network apparatus 5 to the device 1 itself and an uplink data transmission permission process in which the higher-network apparatus 1 calculates a transmission time and a transmission permission amount of uplink data transmitted from an ONU 4 to OLT 2 based on the scheduling for uplink communication and notifies the OLT 2, which is the OLT 2 connected to the lower network of the apparatus 1 itself and is connected to one or a plurality of the ONUs 4, connected to the higher network of each of the lower-network apparatus 5, through an optical fiber section 3, of the transmission time and the transmission permission amount of the uplink data.

摘要翻译： 本发明提供一种由通过PON系统连接的较高网络装置和下位网络装置构成的通信系统，其目的在于将上行数据从较低网络装置高速传输到较高网络装置 以便满足在较高网络设备与较低网络设备之间的延迟时间所需的苛刻条件。 本发明还提供了一种光通信方法，其包括以下步骤：对于与上述设备1本身进行通信的一个或多个下位网络装置5，上位机装置1执行的调度执行处理，进行上行链路通信的调度 下位网络设备5到设备1本身以及上行数据传输许可处理，其中上位机设备1基于从ONU4发送到OLT 2的上行链路数据的传输时间和发送允许量，基于 上行链路通信的调度，通知连接到设备1本身的下层网络的OLT2的OLT2，并连接到与各个下位机的每个的较高网络连接的一个或多个ONU 4， 网络装置5通过光纤部分3发送上行数据的发送时间和发送允许量。

公开(公告)号：US20210176701A1

公开(公告)日：2021-06-10

申请号：US16767529

申请日：2018-11-30

申请人： NIPPON TELEGRAPH AND TELEPHONE CORPORATION

发明人： Yuki ARIKAWA ,  Takeshi SAKAMOTO

IPC分类号： H04W48/00 ,  H04W48/16 ,  H04W72/12 ,  H04W88/10

摘要： A search range decision unit (103) first decides, as a narrow-down count, the number of transmission points for which each of user wireless terminals becomes a connection candidate, based on the number of user wireless terminals that perform wireless communication with one of the plurality of transmission points. In addition, the search range decision unit (103) limits, based on combination conditions stored in a storage unit (102), the number of the plurality of transmission points that can be combined with one of the user wireless terminals according to the narrow-down count, and sets combination limitation information that associates the plurality of transmission points with the user wireless terminals that are the connection candidates for each of the plurality of transmission points.

公开(公告)号：US20190213334A1

公开(公告)日：2019-07-11

申请号：US16332777

申请日：2017-09-13

申请人： NIPPON TELEGRAPH AND TELEPHONE CORPORATION

发明人： Takeshi SAKAMOTO ,  Kenji KAWAI ,  Junichi KATO ,  Kazuhiko TERADA ,  Hiroyuki UZAWA ,  Nobuyuki TANAKA ,  Tomoaki KAWAMURA

IPC分类号： G06F21/60 ,  H04B10/27 ,  H04B10/11

CPC分类号： G06F21/602 ,  H04B10/11 ,  H04B10/27 ,  H04L12/44

摘要： An OLT (10) is provided with a priority control bypass circuit (16) and an encryption/decryption bypass circuit (17), or an ONU (20) is provided with a priority control bypass circuit (26) and an encryption/decryption bypass circuit (27), and one or both of encryption/decryption processing and priority control processing are bypassed in accordance with a priority control bypass instruction (BP) and an encryption/decryption bypass instruction (BE), which are set in advance. This reduces a processing delay that occurs in the OLT or the ONU.