公开(公告)号：US20240306084A1

公开(公告)日：2024-09-12

申请号：US18276247

申请日：2021-02-18

Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION

Inventor： Hiroya ONO ,  Yuki SAKAUE ,  Takuya ABE

IPC: H04W48/18 ,  H04W64/00

CPC classification number: H04W48/18 ,  H04W64/00

Abstract: An object of the present disclosure is to enable execution of connection destination selection processing by an appropriate optimization engine for each user terminal and enable optimization of a connection destination in a wide range of networks.
There is provided a network selection system having a network selection device that selects a network which is a connection destination of each user terminal, the network selection system including a plurality of network selection devices configured to manage different areas according to position information of a user terminal, in which each network selection device notifies a user terminal present in an area managed by the device itself of an address on a network of the network selection device that manages an area of a movement destination of the user terminal based on the position information notified from the user terminal.

公开(公告)号：US20230132674A1

公开(公告)日：2023-05-04

申请号：US17915708

申请日：2020-03-31

Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION

Inventor： Takuya ABE ,  Satoshi NARIKAWA ,  Tomohiko IKEDA

IPC: H04Q11/00 ,  H04B10/27

Abstract: An object of the present disclosure is to enable an ONU to acquire ID information of terminal devices even when a network device is connected between the ONU and the terminal devices, and to thereby enable generation of a logical path between the ONU and the OLT. The present disclosure relates to an optical communication network system configured to connect terminal devices and a passive optical network (PON) system via a network device. The PON system includes an optical line terminal and an optical network unit connected using an optical transmission line. The optical network unit is configured to construct a tunnel to the network device, acquire ID information of the terminal devices connected to the network device from the terminal devices via the tunnel, and generates a logical path to the optical line terminal on the optical transmission line using the acquired ID information.

公开(公告)号：US20240388986A1

公开(公告)日：2024-11-21

申请号：US18688994

申请日：2021-09-13

Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION

Inventor： Hiroya ONO ,  Yuki SAKAUE ,  Takuya ABE ,  Satoshi NARIKAWA

IPC: H04W36/30 ,  H04W36/00 ,  H04W36/14

Abstract: An object of the present disclosure is to prevent a decrease in a window size, thereby reducing a quality degradation time due to handover processing.
The present disclosure is a communication system in which a communication terminal communicates with an arbitrary communication device according to an allocated window size, in which the communication system saves a window size before handover or a window size determined based on the window size when the communication terminal performs the handover, and determines window size after the handover based on the saved window size.

公开(公告)号：US20240235987A9

公开(公告)日：2024-07-11

申请号：US18271501

申请日：2021-01-20

Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION

Inventor： Tomohiko IKEDA ,  Satoshi NARIKAWA ,  Takuya ABE

IPC: H04L45/24 ,  H04L69/14 ,  H04L69/164

CPC classification number: H04L45/24 ,  H04L69/14 ,  H04L69/164

Abstract: An object of the present disclosure is to make multipath technology applicable to UDP.
The present disclosure is a communication system in which a plurality of communication devices are connected via a plurality of networks, wherein one of the plurality of communication devices reads application data stored in a UDP payload, and stores information on a multipath option as a part of the application data, and the other one of the plurality of communication devices reads application data stored in a UDP payload, acquires information on a multipath option from the application data, and executes communication via the plurality of networks on the basis of the acquired information on the multipath option.

公开(公告)号：US20240073157A1

公开(公告)日：2024-02-29

申请号：US18270412

申请日：2021-01-04

Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION

Inventor： Hiroya ONO ,  Satoshi NARIKAWA ,  Takuya ABE ,  Yuki SAKAUE ,  Tomohiko IKEDA

IPC: H04L47/80 ,  H04L41/5003 ,  H04L41/5067

CPC classification number: H04L47/805 ,  H04L41/5003 ,  H04L41/5067

Abstract: An object of the present disclosure is to enable network control to be executable that does not deteriorate experience quality of a user even in a case where the user uses a terminal.
A communication processing device according to the present disclosure,



when detecting occurrence of network control that is different from a user controlled application, collects user information indicating a state of a user that uses a terminal, predicts an experience quality change of the user in a case of executing the network control using the user information obtained by the collection, and executes the network control on the basis of an experience quality change amount of the user obtained by the prediction.

公开(公告)号：US20220417625A1

公开(公告)日：2022-12-29

申请号：US17624206

申请日：2019-11-26

Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION

Inventor： Takuya ABE ,  Satoshi NARIKAWA ,  Tomohiko IKEDA

IPC: H04Q11/00 ,  H04L41/12 ,  H04L45/02

Abstract: An object of the present disclosure is to enable each ONU to generate a plurality of logical paths corresponding to the number of terminal devices connected to the ONU without setting a plurality of MAC addresses in each ONU.
An optical network unit according to the present disclosure includes an ID acquisition unit 26 that acquires ID information unique to a terminal device 94 from the terminal device 94; a virtual MAC address generation unit that generates a virtual MAC address for the optical network unit by using the acquired ID information; a connection identification unit that generates a logical path between the optical network unit and an optical line terminal by using the generated virtual MAC address as a MAC address for an LLID (Logical Link ID); and a signal processing unit that refers to a table in which the identification information acquired by the virtual MAC address generation unit and the LLID are associated with each other to pass, to the terminal device, data transmitted and received using the logical path generated by the connection identification unit.

公开(公告)号：US20240137309A1

公开(公告)日：2024-04-25

申请号：US18271501

申请日：2021-01-20

Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION

Inventor： Tomohiko IKEDA ,  Satoshi NARIKAWA ,  Takuya ABE

IPC: H04L45/24 ,  H04L69/14 ,  H04L69/164

CPC classification number: H04L45/24 ,  H04L69/14 ,  H04L69/164

Abstract: An object of the present disclosure is to make multipath technology applicable to UDP.
The present disclosure is a communication system in which a plurality of communication devices are connected via a plurality of networks, wherein one of the plurality of communication devices reads application data stored in a UDP payload, and stores information on a multipath option as a part of the application data, and the other one of the plurality of communication devices reads application data stored in a UDP payload, acquires information on a multipath option from the application data, and executes communication via the plurality of networks on the basis of the acquired information on the multipath option.

公开(公告)号：US20230269308A1

公开(公告)日：2023-08-24

申请号：US18020207

申请日：2020-08-21

Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION

Inventor： Tomohiko IKEDA ,  Satoshi NARIKAWA ,  Takuya ABE

IPC: H04L69/14 ,  H04L69/16

CPC classification number: H04L69/14 ,  H04L69/16

Abstract: An objective of the present disclosure is to enable a terminal device compatible with an MPTCP to perform communication using the MPTCP even with a service server incompatible with the MPTCP.
In a communication system, a terminal device and a service server incompatible with a multipath transmission control protocol (MPTCP) transmit and receive a packet. The communication system includes a relay server connected between the service server and the terminal device and determines whether the terminal device is compatible with the MPTCP. When the terminal device is compatible with the MPTCP, the relay server establishes an MPTCP main session and sub-session, establishes a transmission control protocol (TCP) session with the service server, transmits and receives a packet to and from the service server using the TCP session, and transmits and receives a packet to and from the terminal device using the MPTCP main session and sub-session.

公开(公告)号：US20230122395A1

公开(公告)日：2023-04-20

申请号：US17915753

申请日：2020-03-31

Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION

Inventor： Takuya ABE ,  Satoshi NARIKAWA ,  Tomohiko IKEDA

IPC: H04B10/27

Abstract: An object of the present disclosure is to enable an ONU to acquire ID information of terminal devices even when a network device is connected between the ONU and the terminal devices, and to thereby enable generation of a logical path between the ONU and the OLT. The present disclosure relates to an optical communication network system configured to connect a terminal device and a passive optical network (PON) system via a network device. The PON system includes an optical line terminal and an optical network unit connected using an optical transmission line. The network device is configured to acquire ID information of the terminal device, and notify the optical network unit of the acquired ID information. The optical network unit is configured to acquire ID information of the terminal device from the network device, and generate a logical path to the optical line terminal on the optical transmission line using the acquired ID information.