公开(公告)号：US20240357008A1

公开(公告)日：2024-10-24

申请号：US18687581

申请日：2021-09-06

Applicant: Nippon Telegraph and Telephone Corporation

Inventor： Toru MANO ,  Junki ICHIKAWA ,  Yukio TSUKISHIMA ,  Kenji SHIMIZU ,  Hideki NISHIZAWA ,  Tomoya HIBI ,  Kiwami INOUE

IPC: H04L67/1097

CPC classification number: H04L67/1097

Abstract: This communication system comprises a plurality of computers 1, 2 that each comprise: an optical transport path control unit 14 that adjusts the number of optical transport paths between the computer itself and a connection target computer and that sets the adjusted number of optical transport paths; a remote direct memory access (RDMA) communication unit 11 that, in accordance with the number of optical transport paths 4 announced from the optical transport path control unit 14, chunks data that is to be transferred to the connection target computer; and an RDMA control unit 16 that sets RDMA communication paths the number of which is the same as the number of the optical transport paths 4 pursuant to an instruction from the RDMA communication unit 11.

公开(公告)号：US20240195873A1

公开(公告)日：2024-06-13

申请号：US18553360

申请日：2021-04-19

Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION

Inventor： Shintaro MIZUNO ,  Kenji SHIMIZU ,  Masahisa KAWASHIMA

IPC: H04L67/1097 ,  H04L45/00

CPC classification number: H04L67/1097 ,  H04L45/66

Abstract: An information communication apparatus, which aggregates data transmitted from a plurality of terminals and transmits the aggregated data to a reception side. The information communication apparatus includes: a determination means that operates in a first layer for determining an update size of a memory area used to hold the data transmitted from the plurality of terminals on a basis of information related to the data; and a setting means that sets a band of a network path of a second layer necessary for communicating with the reception side on a basis of the update size and an update rate of the data.

公开(公告)号：US20210112549A1

公开(公告)日：2021-04-15

申请号：US17047727

申请日：2019-04-08

Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION

Inventor： Yohei KATAYAMA ,  Atsushi TANIGUCHI ,  Kenji SHIMIZU ,  Takahiro YAMAZAKI ,  Maiko NAYA

IPC: H04W72/04 ,  H04L29/06 ,  H04W36/30 ,  H04W76/15

Abstract: A wireless communication method is executed by a wireless communication system including one or more wireless terminals and a wireless communication apparatus. The wireless communication apparatus generates wireless scheme schedule information, which is information related to a schedule of a slot allocated to an uplink signal and a downlink signal of a predetermined wireless scheme, generates a downlink signal to be transmitted in the slot to the wireless terminal based on the wireless scheme schedule information, and transmits a beacon signal including the wireless scheme schedule information in the slot. The wireless terminal receives the beacon signal, in the slot, acquires the wireless scheme schedule information from the beacon signal, and generates an uplink signal to be transmitted in the slot to the wireless communication apparatus, based on the wireless scheme schedule information.

公开(公告)号：US20240385986A1

公开(公告)日：2024-11-21

申请号：US18687875

申请日：2021-09-02

Applicant: Nippon Telegraph and Telephone Corporation

Inventor： Tomoya HIBI ,  Junki ICHIKAWA ,  Yukio TSUKISHIMA ,  Kenji SHIMIZU ,  Hideki NISHIZAWA ,  Kiwami INOUE ,  Toru MANO

IPC: G06F15/173 ,  G06F21/60

Abstract: A communication system includes a plurality of computing machines connected to an optical network, in which the optical network includes a main signal communication path and a control communication path. Each of the computing machines and includes an RDMA communication unit that performs transmission of setting information for setting the main signal communication path to a computing machine of an access destination via the control communication path; and a main signal transmitting/receiving unit that establishes the main signal communication path based on the setting information. The RDMA communication unit gives an instruction for setting of the RDMA communication path in parallel with the transmission of the setting information. The computing machine further includes an RDMA control unit that secures a memory area for RDMA communication and transmits setting information including the memory area to the computing machine of the access destination.

公开(公告)号：US20240205299A1

公开(公告)日：2024-06-20

申请号：US18554090

申请日：2021-04-19

Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION

Inventor： Shintaro MIZUNO ,  Kenji SHIMIZU ,  Masahisa KAWASHIMA

IPC: H04L67/50 ,  G06F15/173 ,  H04L67/1097

CPC classification number: H04L67/50 ,  G06F15/17331 ,  H04L67/1097

Abstract: A data processing system includes an event information generating apparatus including generation means that receives data collected from a plurality of terminals, generates event information from the data, and transmits the generated event information to a broker device. The event information generating apparatus includes transmission means that transmits, to a data hub node device corresponding to the event information generated by the generation means, among a plurality of data hub node devices that differ for each event information, data corresponding to the event information. The data processing system includes a data processing apparatus including acquisition means that acquires event information corresponding to a specific service from a broker device. The data processing apparatus includes processing means that acquires the data from a data hub node device that stores the data corresponding to the event information, to execute processing using the data.

公开(公告)号：US20240414092A1

公开(公告)日：2024-12-12

申请号：US18697928

申请日：2021-10-08

Applicant: Nippon Telegraph and Telephone Corporation

Inventor： Tomoya HIBI ,  Junki ICHIKAWA ,  Toru MANO ,  Kazuya ANAZAWA ,  Yukio TSUKISHIMA ,  Kenji SHIMIZU ,  Hideki NISHIZAWA ,  Koichi TAKASUGI

IPC: H04L47/30 ,  H04L49/9005

Abstract: A communication system includes a first intermediate device 10A and a second intermediate device 10B, in which the first intermediate device includes a buffer management unit 15 that determines a buffer size based on delay information and secures a buffer, a transfer unit 11 that, when data to be transferred to a second device 50 is smaller than a credit of the second intermediate device, transfers a request including the data to the second intermediate device, and a generation unit 12A that generates a pseudo-response to the request and returns the pseudo-response to the first device, and the second intermediate device includes a buffer management unit 15 that determines a buffer size based on the delay information and secures a buffer, a transfer unit 11 that transfers the request to the second device and stores the request in the buffer to update the credit of its own device, and a discarding unit 12B that discards a response received from the second device, deletes the request stored in the buffer, and updates the credit.

公开(公告)号：US20210274456A1

公开(公告)日：2021-09-02

申请号：US17047714

申请日：2019-04-08

Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION

Inventor： Yohei KATAYAMA ,  Atsushi TANIGUCHI ,  Kenji SHIMIZU ,  Takahiro YAMAZAKI ,  Maiko NAYA

IPC: H04W56/00 ,  H04W72/12

Abstract: A radio communication method executed by a control apparatus controlling a base station apparatus performing communication with a terminal in a predetermined region, and includes determining whether there is the terminal that is asynchronized in communication with the base station apparatus transmitting a synchronization signal, and controlling, in a case where it is determined that there is the asynchronized terminal, the base station apparatus to increase an allocation time of the synchronization signal in compliance with a radio scheme used by the asynchronized terminal or to shorten an allocation cycle of the synchronization signal.

公开(公告)号：US20210227538A1

公开(公告)日：2021-07-22

申请号：US17047337

申请日：2019-04-04

Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION

Inventor： Yohei KATAYAMA ,  Atsushi TANIGUCHI ,  Kenji SHIMIZU ,  Takahiro YAMAZAKI ,  Maiko NAYA

IPC: H04W72/04 ,  H04W76/10

Abstract: There is provided a wireless communication method in a wireless communication system including a plurality of base station apparatuses, a plurality of wireless signal processing apparatuses configured to perform signal processing that corresponds to each of a plurality of wireless schemes, and a control apparatus configured to control a transmission timing of signals in the base station apparatus and the wireless signal processing apparatus, the method including: determining a combination of the base station apparatus and the wireless signal processing apparatus that perform communication at each predetermined time by the control apparatus such that there is less overlap in time to establish a communication path between the wireless signal processing apparatus and each of a plurality of base station apparatuses that use the same wireless signal processing apparatus, in which the base station apparatus and the wireless signal processing apparatus perform communication by switching a determined combination of the communication paths and any one or all of a radio frequency of each base station apparatus and a wireless bandwidth of each base station apparatus over time.

公开(公告)号：US20210029630A1

公开(公告)日：2021-01-28

申请号：US17042035

申请日：2019-04-08

Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION

Inventor： Takahiro YAMAZAKI ,  Kenji SHIMIZU ,  Atsushi TANIGUCHI ,  Yohei KATAYAMA ,  Maiko NAYA

IPC: H04W48/20 ,  H04W24/02 ,  H04W88/12 ,  H04W88/10

Abstract: An access point management method for managing a plurality of access points capable of providing wireless communication services in accordance with a plurality of wireless standards to a radio terminal apparatus includes acquiring plural pieces of request information which are used for requesting providing of the wireless communication service and include information indicating an area in which the wireless communication service is provided, selecting the access point assigned to each wireless communication service, based on the area requested by the plural pieces of request information acquired and characteristics of a wireless standard provided in the wireless communication service, and transmitting a request signal for deploying the wireless communication service corresponding to the request information, to the access point selected.

公开(公告)号：US20250094371A1

公开(公告)日：2025-03-20

申请号：US18726624

申请日：2022-01-12

Applicant: Nippon Telegraph and Telephone Corporation

Inventor： Kiwami INOUE ,  Junki ICHIKAWA ,  Yukio TSUKISHIMA ,  Kenji SHIMIZU ,  Hideki NISHIZAWA

IPC: G06F13/28

Abstract: A local terminal transmits to a processing device an RDMA transmission packet in which processing data to be transferred to a memory of an accelerator of each of a first remote terminal and a second remote terminal is set. The processing device acquires a QPN from the first remote terminal, converts a Destination QP of a BTH of the RDMA transmission packet into the QPN acquired from the first remote terminal, and transmits a converted RDMA transmission packet to the first remote terminal. When a connection is established, the processing device acquires a QPN from the second remote terminal, converts the Destination QP of the BTH of the RDMA transmission packet into the QPN acquired from the second remote terminal, and transmits a converted RDMA transmission packet to the second remote terminal. Each of the first and second remote terminal transfers the processing data to the memory of the accelerator.