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1. 发明申请

US20220123838A1 DOWNSTREAM FRAME TRANSFER DEVICE, TRANSFER METHOD, AND TRANSFER PROGRAM 有权
公开(公告)号：US20220123838A1
公开(公告)日：2022-04-21
申请号：US17431668
申请日：2020-02-14
申请人： NIPPON TELEGRAPH AND TELEPHONE CORPORATION
发明人： Rintaro HARADA , Hiroyuki UZAWA , Hirotaka NAKAMURA , Jun TERADA
IPC分类号： H04B10/27
摘要： A transfer device installed between a host device and a plurality of OLTs in a communication system to which a network with a PON configuration including the plurality of OLTs between the host device and a subordinate device is applied, the transfer device including a frame information acquisition unit configured to monitor downstream frames input from the host device and calculate a statistical value of the downstream frames per a predetermined fixed cycle, a frame storage unit including a plurality of queues each configured to store downstream frames to be transferred to the plurality of OLTs, the frame storage unit configured to store the downstream frames input from the host device, a frame sorting unit configured to input the downstream frames to the plurality of queues in the frame storage unit, and a distribution control determination unit configured to determine the number of frames to be sequentially input by the frame sort unit to the plurality of queues based on the statistical value.

2. 发明申请

US20220030500A1 ROUTE CONTROL METHOD AND ROUTE CONTROL DEVICE 有权
公开(公告)号：US20220030500A1
公开(公告)日：2022-01-27
申请号：US17298294
申请日：2019-11-28
申请人： NIPPON TELEGRAPH AND TELEPHONE CORPORATION
发明人： Naotaka SHIBATA , Hiroyuki UZAWA , Yoichi FUKADA , Jun TERADA
IPC分类号： H04W40/02 , H04L12/707 , H04L12/751
摘要： A path control method of controlling a communication path in a network including a plurality of wireless devices communicating with a terminal in a wireless manner and a plurality of wireless control devices communicating with any one of the plurality of wireless devices through a plurality of signal transfer devices includes searching for available communication paths and listing the available communication paths for individual combinations of a wireless device of the plurality of wireless devices and a wireless control device of the plurality of wireless control devices, and selecting a combination of communication paths in which a maximum value of the number of communications passing through the same output port of a signal transfer device of the plurality of signal transfer devices is minimized from among the listed available communication paths.

3. 发明申请

US20220007151A1 RELAY DEVICE, RELAY METHOD, AND RELAY PROGRAM 有权
公开(公告)号：US20220007151A1
公开(公告)日：2022-01-06
申请号：US17291259
申请日：2019-10-25
申请人： NIPPON TELEGRAPH AND TELEPHONE CORPORATION
发明人： Naotaka SHIBATA , Hirofumi YAMAMOTO , Keita TAKAHASHI , Noriyuki OTA , Jun TERADA
IPC分类号： H04W4/06 , H04B7/155
摘要： A relay device including: an information storage unit that stores conversion-target header information; a downlink signal dividing unit that divides a downlink signal received from the radio control device into a header and a payload; a signal replicating unit that makes the same number of copies of the payload of the downlink signal as the number of the plurality of destination radio devices; a downlink signal header information conversion unit that performs conversion on the header of the downlink signal for each destination radio device based on the header information stored in the information storage unit; and a signal addition assignment unit that adds the header converted by the downlink signal header information conversion unit to each of the payloads of the downlink signal replicated by the signal replicating unit, and transfers the payloads to the radio devices respectively corresponding thereto.

4. 发明申请

US20210112016A1 TRANSFER APPARATUS, TRANSFER METHOD, AND TRANSFER PROGRAM 有权
公开(公告)号：US20210112016A1
公开(公告)日：2021-04-15
申请号：US17057034
申请日：2019-05-08
申请人： NIPPON TELEGRAPH AND TELEPHONE CORPORATION
发明人： Rintaro HARADA , Hiroyuki UZAWA , Hirotaka NAKAMURA , Daisuke HISANO , Hirotaka UJIKAWA , Jun TERADA
IPC分类号： H04L12/865
摘要： A transfer apparatus include a distribution unit, a storage unit, and a transfer unit, in which the distribution unit is configured to identify a plurality of networks to which frames belong, distribute the frames for each of the networks based on an identification result, and store the distributed frames in the storage unit, the storage unit is configured to store information of a time at which a frame of the frames is stored in the storage unit and the frame in association with each other, and the transfer unit is configured to detect a period of time for which the frame stays in the storage unit, detect a remaining period to send which is a remaining time of a time for which the frame is permitted to stay in the storage unit, for each of the frames, based on a difference between the time for which the frame stays in the storage unit and the delay upper limit value, and output the frame to a predetermined apparatus based on the remaining period to send.

5. 发明申请

US20220201536A1 COMMUNICATION SYSTEM, COMMUNICATION DEVICE, AND TERMINAL DEVICE 有权
公开(公告)号：US20220201536A1
公开(公告)日：2022-06-23
申请号：US17603464
申请日：2020-04-02
申请人： NIPPON TELEGRAPH AND TELEPHONE CORPORATION
发明人： Tatsuya FUKUI , Naotaka SHIBATA , Keita TAKAHASHI , Hideaki KIMURA , Noriyuki OTA , Hirofumi YAMAMOTO , Jun TERADA
IPC分类号： H04W28/02
摘要： An object is to provide a communication system, a communication apparatus, and a terminal apparatus capable of integrating communication paths of both of mobile access and fixed access while addition of a new function to a mobile network is reduced.
In a communication system 100 according to the present invention, a communication path of one mobile bearer between a base station master station apparatus 300 and a user gateway 600 includes a split bearer configuration including a mobile access communication path being connected from the base station master station apparatus 300 to the user gateway 600 via a mobile access slave station apparatus 400 and a non-mobile access communication path being connected from the base station master station apparatus 300 to the user gateway 600 via a non-mobile access slave station apparatus 500.

6. 发明申请

US20220116825A1 ROUTE CONTROL METHOD AND ROUTE CONTROL DEVICE 有权
公开(公告)号：US20220116825A1
公开(公告)日：2022-04-14
申请号：US17298336
申请日：2019-11-28
申请人： NIPPON TELEGRAPH AND TELEPHONE CORPORATION
发明人： Naotaka SHIBATA , Hiroyuki UZAWA , Yoichi FUKADA , Jun TERADA
IPC分类号： H04W28/08 , H04W40/02 , H04W72/12
摘要： Provided is a path control method of controlling a path of communication in a network including a high priority device dealing with high priority traffic, a high priority control device communicating with the high priority device through a plurality of signal transfer devices transferring signals by periodically repeating a high priority signal transmissible period in which high priority traffic is transmissible and a low priority signal transmissible period in which low priority traffic is transmissible, a low priority device dealing with the low priority traffic, and a low priority control device communicating with the low priority device through the plurality of signal transfer devices, the path control method including calculating a low priority signal transmissible period in each of paths between the low priority device and the low priority control device, and performing setting for switching the path between the low priority device and the low priority control device so that the low priority traffic is transmitted in any one of the calculated low priority signal transmissible periods.

7. 发明申请

US20180077686A1 TERMINAL STATION DEVICE AND BANDWIDTH ALLOCATION METHOD 审中-公开
公开(公告)号：US20180077686A1
公开(公告)日：2018-03-15
申请号：US15562114
申请日：2016-03-28
申请人： NIPPON TELEGRAPH AND TELEPHONE CORPORATION
发明人： Hiroshi OU , Tatsuya SHIMADA , Takayuki KOBAYASHI , Jun TERADA
IPC分类号： H04W72/04
摘要： Information on allocation of a bandwidth of uplink communication of each of user devices is extracted from information notified from an upper-level device on the uplink communication of the user devices. Correspondence information is created to indicate a correspondence among the upper-level device, the terminal device, the lower-level device, and the user device. A start time point of the uplink communication of the terminal device and an information amount of signals for which transmission of the uplink communication of the terminal device is allowed are allocated to the terminal device on the basis of the information on allocation of the bandwidth of the uplink communication of each of the user devices and the correspondence information.

8. 发明申请

US20180048439A1 WIRELESS COMMUNICATION SYSTEM AND WIRELESS COMMUNICATION METHOD 审中-公开
公开(公告)号：US20180048439A1
公开(公告)日：2018-02-15
申请号：US15552724
申请日：2016-03-03
申请人： NIPPON TELEGRAPH AND TELEPHONE CORPORATION
发明人： Kenji MIYAMOTO , Shigeru KUWANO , Jun TERADA
IPC分类号： H04L5/00 , H04L27/26 , H04B7/024
CPC分类号： H04L5/0035 , H04B7/024 , H04B7/08 , H04L27/2601 , H04W16/28 , H04W28/16
摘要： A wireless communication system includes distributed units communicating with a terminal device and a central unit connected to the distributed units and receiving and processing signals from the distributed units. The central unit includes a host function unit to pre-notify the distributed units if a received signal from the terminal device is a target of coordination between distributed units, hard/soft determination units configured to separate received signals from the distributed units into a hard decision value and a soft decision value based on presence or absence of coordination between the distributed units, transmit the hard decision value to the host function unit as is, and transmit the soft decision value to a signal combining unit, the signal combining unit combines soft decision values output from the hard/soft determination units and outputs a combined soft decision value, and a decoding unit performs decoding using the soft decision value output from the signal combining unit.

9. 发明申请

US20170180078A1 BASE STATION APPARATUS, WIRELESS COMMUNICATION SYSTEM, AND COMMUNICATION METHOD 有权
公开(公告)号：US20170180078A1
公开(公告)日：2017-06-22
申请号：US15116126
申请日：2015-01-29
申请人： NIPPON TELEGRAPH AND TELEPHONE CORPORATION
发明人： Kenji MIYAMOTO , Shigeru KUWANO , Jun TERADA , Takayoshi TASHIRO
IPC分类号： H04L1/00 , H04L25/03 , H04B7/022 , H04L25/02 , H04W88/08
CPC分类号： H04L1/0054 , H04B7/022 , H04B7/082 , H04L25/024 , H04L25/03292 , H04W88/085
摘要： A base station apparatus includes at least one remote unit apparatus including at least one antenna; and a central unit apparatus connected to each remote unit via a transmission path. The remote antenna receives a wireless transmission signal from at least one wireless terminal including at least one antenna. The remote unit includes a channel estimation unit functioning between the terminal antenna and the remote antenna, using a reception signal received by the remote unit antenna; a reception signal processing unit that detects a reception signal corresponding to the transmission signal, using the channel information estimated by the channel estimation unit; a decoding unit that decodes each signal detected by the reception signal processing unit; and an inter-unit transmission unit that transmits each signal decoded by the decoding unit to the central unit. The central unit is provided with an inter-unit receiving unit and a signal selection unit.

10. 发明申请

US20150311980A1 OPTICAL COMMUNICATION SYSTEM, OPTICAL COMMUNICATION METHOD, HIGHER-NETWORK APPARATUS, AND OPTICAL LINE TERMINAL 有权
标题翻译：光通信系统，光通信方法，高网络设备和光线路终端
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。

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