公开(公告)号：US20240323575A1

公开(公告)日：2024-09-26

申请号：US18694813

申请日：2021-10-04

Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION

Inventor： Karin UMEDA ,  Kota ASAKA ,  Hiroko NOMURA ,  Hiroshi O ,  Yoshihito SAKAI ,  Hirotaka UJIKAWA ,  Kenji MIYAMOTO ,  Yuka OKAMOTO ,  Tatsuya SHIMADA

IPC: H04Q11/00 ,  H04B10/27

CPC classification number: H04Q11/0062 ,  H04B10/27 ,  H04Q2011/0086

Abstract: A control device including a collection unit that acquires, at a predetermined cycle, cooperation information, which is information indicating a communication state between a communication system that includes a wireless station including an antenna and an allocation device that allocates a wavelength, and a terminal to be communicated, an analysis unit that analyzes the communication state in the communication system on the basis of the cooperation information, and an allocation control unit that controls execution of wavelength allocation by the allocation device on the basis of an analysis result of the analysis unit.

公开(公告)号：US20240171521A1

公开(公告)日：2024-05-23

申请号：US18283044

申请日：2021-03-23

Applicant: Nippon Telegraph and Telephone Corporation

Inventor： Takamitsu TOCHINO ,  Tatsuya SHIMADA ,  Keita Takahashi ,  Yoshihito SAKAI

IPC: H04L47/6275 ,  H04L47/56 ,  H04L49/9047

CPC classification number: H04L47/6275 ,  H04L47/56 ,  H04L49/9047

Abstract: A signal transfer device according to an embodiment receives a plurality of signals including an aperiodic signal having a higher priority than other signals, respectively holds the plurality of received signals by a plurality of buffers according to the priority, acquires signal information including at least one of a time at which the aperiodic signal is transmitted or received and a data length of the aperiodic signal, predicts a timing at which the aperiodic signal arrives at the buffer based on the acquired signal information, sets reservation of a period for transmitting the aperiodic signal with priority over other signals based on the predicted timing, controls the plurality of buffers to output the aperiodic signal with priority over other signals in the period in which the reservation is set, and transmits the signal output by the buffer.

公开(公告)号：US20200028605A1

公开(公告)日：2020-01-23

申请号：US16483715

申请日：2018-02-06

Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION

Inventor： Hiroyuki UZAWA ,  Tatsuya SHIMADA ,  Daisuke HISANO ,  Hiroko NOMURA

IPC: H04J3/16 ,  H04W72/04 ,  H04W72/12

Abstract: A bandwidth allocation device is included in a communication system having a terminal station device and a terminal device and relaying upstream data, which is received from a communication terminal by a lower device connected to the terminal device, to an upper device connected to the terminal station device. The bandwidth allocation device includes a transmission-permitted period start position determining unit configured to estimate a start position of an arrival period in which the upstream data arrives at the terminal device from the lower device; a transmission-permitted period length determining unit configured to estimate a length of the arrival period based on an amount of upstream data to be transmitted from the lower device to the terminal device; and a bandwidth allocation unit configured to allocate a bandwidth to the terminal device based on the estimated start position and the estimated length of the arrival period.

公开(公告)号：US20180309563A1

公开(公告)日：2018-10-25

申请号：US15770234

申请日：2016-10-25

Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION

Inventor： Daisuke HISANO ,  Tatsuya SHIMADA ,  Hiroshi OU ,  Takayuki KOBAYASHI

IPC: H04L5/14 ,  H04B10/25 ,  H04B10/2575 ,  H04B10/297 ,  H04L5/00

CPC classification number: H04L5/1469 ,  H04B7/15528 ,  H04B10/2503 ,  H04B10/25753 ,  H04B10/2971 ,  H04L5/0008 ,  H04L5/0037 ,  H04L5/0064 ,  H04L5/0087 ,  H04L5/1423 ,  H04L12/44

Abstract: A relay transmission system includes a relay unit configured to relay uplink signals and downlink signals in the first and second communication systems, a time division duplex (TDD) information estimation unit configured to estimate a transmission period of network devices in the first communication system on the basis of the uplink or downlink signal of the first communication system that is relayed by the relay unit, a surplus bandwidth determination unit configured to determine a surplus bandwidth in which an uplink signal of the first communication system is not allocated to a relay target of the relay unit during the transmission period on the basis of the number of network devices and a maximum transmission capacity of the network devices, and a bandwidth allocation unit configured to allocate the uplink signal of the second communication system to the relay target of the relay unit in the surplus bandwidth.

公开(公告)号：US20180077686A1

公开(公告)日：2018-03-15

申请号：US15562114

申请日：2016-03-28

Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION

Inventor： Hiroshi OU ,  Tatsuya SHIMADA ,  Takayuki KOBAYASHI ,  Jun TERADA

IPC: H04W72/04

Abstract: 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.

公开(公告)号：US20240405909A1

公开(公告)日：2024-12-05

申请号：US18694838

申请日：2021-10-04

Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION

Inventor： Hiroko NOMURA ,  Hirotaka UJIKAWA ,  Kenji MIYAMOTO ,  Kota ASAKA ,  Yoshihito SAKAI ,  Tatsuya SHIMADA

IPC: H04J14/02

Abstract: A control device includes an acquisition unit that acquires information from a distributed station that notifies the information related to one or more events occurred within a predetermined time period at a predetermined notification frequency, an information analysis unit that executes analysis processing on the information, a frequency derivation unit that derives an occurrence frequency of the information, a load derivation unit that derives a load of analysis processing of the information, and a frequency control unit that controls the predetermined notification frequency with a frequency lower than the occurrence frequency as an upper limit on the basis of at least one of an analysis result of the information, an occurrence frequency of the information, and a load of analysis processing of the information.

公开(公告)号：US20240372812A1

公开(公告)日：2024-11-07

申请号：US18576112

申请日：2021-07-19

Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION

Inventor： Hiroko NOMURA ,  Keita TAKAHASHI ,  Tatsuya SHIMADA

IPC: H04L47/24 ,  H04L47/28

Abstract: A signal transfer control device acquires first schedule information in which a signal transfer device that finally transfers a signal to an intermediate node in a first network transfers a signal, and acquires, for each signal transferred from the first network, processing time information required for the intermediate node to transfer the signal to a second network. Further, the signal transfer control device calculates a correlation between a traffic volume in the intermediate node and a time required for signal transfer processing on the basis of the first schedule information and a plurality of pieces of the acquired processing time information, predicts a time required for signal transfer according to the traffic volume in the intermediate node on the basis of the correlation and the processing time information acquired for each signal, and determines second schedule information.

公开(公告)号：US20210243127A1

公开(公告)日：2021-08-05

申请号：US17233996

申请日：2021-04-19

Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION

Inventor： Daisuke HISANO ,  Hiroyuki UZAWA ,  Tatsuya SHIMADA

IPC: H04L12/815 ,  H04L5/00

Abstract: A bandwidth allocation apparatus includes: a traffic starting position detection unit that detects a start timing of burst traffic on the basis of the traffic information; a traffic information extraction unit that extracts information on a traffic amount of each of a plurality of traffic allocation periods from the traffic information extracted for each lower-level apparatus; a traffic amount estimation unit that calculates an average value of the traffic amount in the traffic allocation periods on the basis of the information on the traffic amount that the traffic information extraction unit has extracted for each lower-level apparatus; and a bandwidth allocation unit that allocates a first bandwidth which is an allocation bandwidth based on the average value calculated by the traffic amount estimation unit to the terminating apparatus from the start timing detected by the traffic starting position detection unit.

公开(公告)号：US20190394135A1

公开(公告)日：2019-12-26

申请号：US16483763

申请日：2018-01-31

Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION

Inventor： Daisuke HISANO ,  Hiroyuki UZAWA ,  Tatsuya SHIMADA

IPC: H04L12/815 ,  H04L5/00

Abstract: A bandwidth allocation apparatus includes: a traffic starting position detection unit that detects a start timing of burst traffic on the basis of the traffic information; a traffic information extraction unit that extracts information on a traffic amount of each of a plurality of traffic allocation periods from the traffic information extracted for each lower-level apparatus; a traffic amount estimation unit that calculates an average value of the traffic amount in the traffic allocation periods on the basis of the information on the traffic amount that the traffic information extraction unit has extracted for each lower-level apparatus; and a bandwidth allocation unit that allocates a first bandwidth which is an allocation bandwidth based on the average value calculated by the traffic amount estimation unit to the terminating apparatus from the start timing detected by the traffic starting position detection unit.

公开(公告)号：US20190372698A1

公开(公告)日：2019-12-05

申请号：US16336020

申请日：2017-09-27

Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION

Inventor： Daisuke HISANO ,  Tatsuya SHIMADA ,  Jun TERADA ,  Hiroshi OU ,  Hiroko NOMURA

IPC: H04J14/02 ,  H04B10/2575

Abstract: An optical transmission system of an embodiment connects a plurality of wireless communication systems to each other, and includes a wavelength allocation unit that allocates different wavelengths to optical-terminating devices to which the wireless communication systems next to each other are connected, on the basis of the physical arrangement of each of the plurality of wireless communication system.