公开(公告)号：US20250110802A1

公开(公告)日：2025-04-03

申请号：US18892879

申请日：2024-09-23

Applicant: Fujitsu Limited ,  NIPPON TELEGRAPH AND TELEPHONE CORPORATION

Inventor： Masataka SONODA ,  Kazuhiro SUZUKI ,  Teruaki ISHIZAKI ,  Sampath PRIYANKARA ,  Yoshiro YAMABE ,  Yuki ARIKAWA ,  Naoki MIURA

IPC: G06F9/50

Abstract: A resource allocation apparatus selects, based on process information indicating a plurality of functions to be used in performing a process and performance requirements for communications between the plurality of functions, the plurality of functions one by one as a first function in order of the performance requirements, the process being performed by a computing system including a plurality of devices, each of the plurality of devices being bus-connected to one or more other devices. The resource allocation apparatus then determines a first device that is used to implement the first function, based on distances of bus-based communication paths between each of devices that are able to implement the first function and a second device that is used to implement a second function that is a communication partner of the first function.

公开(公告)号：US20210117783A1

公开(公告)日：2021-04-22

申请号：US16967463

申请日：2019-02-06

Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION

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

IPC: G06N3/08 ,  G06N3/04 ,  H04L7/00

Abstract: 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：US20180062746A1

公开(公告)日：2018-03-01

申请号：US15555960

申请日：2016-03-04

Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION

Inventor： Shoko OHTERU ,  Namiko IKEDA ,  Saki HATTA ,  Satoshi SHIGEMATSU ,  Nobuyuki TANAKA ,  Kenji KAWAI ,  Junichi KATO ,  Tomoaki KAWAMURA ,  Hiroyuki UZAWA ,  Yuki ARIKAWA ,  Naoki MIURA

IPC: H04B10/27 ,  H04B10/038 ,  H04B10/40 ,  H04J14/02 ,  H04J14/08

CPC classification number: H04B10/27 ,  H04B10/03 ,  H04B10/038 ,  H04B10/272 ,  H04B10/40 ,  H04J14/0221 ,  H04J14/08 ,  H04L12/44 ,  H04Q11/0062 ,  H04Q2011/0081

Abstract: A selection and distribution circuit (13) is provided between N optical transceivers (11) and one PON control circuit (12). The selection and distribution circuit (13) selects the optical transceiver (11) corresponding to an upstream frame that time-divisionally arrives, thereby transferring the upstream frame opto-electrically converted by the transceiver (11) to the PON control circuit (12) and distributing a downstream frame from the PON control circuit (12) to each optical transceiver (11). A power supply control circuit (23) stops power supply to at least one of one of optical transceivers (11) that are not used to transfer the frame of the optical transceivers (11) and a circuit that is not used to transfer the frame in the selection and distribution circuit (13). This can reduce the system cost per ONU in the optical transmission system.

公开(公告)号：US20180192328A1

公开(公告)日：2018-07-05

申请号：US15739677

申请日：2016-06-22

Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION

Inventor： Hiroyuki UZAWA ,  Yuki ARIKAWA ,  Kenji KAWAI ,  Satoshi SHIGEMATSU

IPC: H04W28/14 ,  H04W72/04 ,  H04J14/02

Abstract: A CU (Central Unit) executes scheduling for allocating radio resources of RRUs (Remote Radio Units) to radio transmission of downlink data while broadcasting, to DMs (Data Managers) via MFH, downlink data from MBH. Each DM selects, based on an allocation result obtained by scheduling, the downlink data of an RRU (Remote Radio Unit) corresponding to the self DM from the accumulated downlink data from the CU, and transfers the selected downlink data to the corresponding RRU while discarding the downlink data of other RRUs. Based on the allocation result, each RRU performs radio transmission of the downlink data from the DM to a corresponding UE (User Equipment) using the designated radio resource. This makes it possible to efficiently transfer the downlink data from the CU to each RRU via the MFH constructed by a TDM system represented by TDM-PON.

公开(公告)号：US20210176701A1

公开(公告)日：2021-06-10

申请号：US16767529

申请日：2018-11-30

Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION

Inventor： Yuki ARIKAWA ,  Takeshi SAKAMOTO

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

Abstract: 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：US20170272167A1

公开(公告)日：2017-09-21

申请号：US15505559

申请日：2015-08-19

Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION

Inventor： Kenji KAWAI ,  Yuki ARIKAWA ,  Tomoaki KAWAMURA ,  Nobuyuki TANAKA ,  Satoshi SHIGEMATSU ,  Naoki MIURA

IPC: H04B10/27 ,  H04B10/40

CPC classification number: H04B10/27 ,  H04B10/40 ,  H04L12/44

Abstract: An OLT (1) is formed by N optical transceivers (11), one PON control circuit (12), and one selection and distribution circuit (13). An optical transceiver selection control signal (SC) is transferred from the PON control circuit (12) to the selection and distribution circuit (13). The optical transceiver selection control signal (SC) indicates the timing of a discovery window, the timing of a grant, and a logical link identification number of a registered ONU assigned to the grant (a logical link identification number for a logical link with the registered ONU). The selection and distribution circuit (13) selects one optical transceiver (11-s (s is an integer falling within a range of 0 to N−1)) from the optical transceivers (11-0 to 11-N−1) based on the optical transceiver selection control signal (SC) from the PON control circuit (12).