公开(公告)号：US20150312796A1

公开(公告)日：2015-10-29

申请号：US14650045

申请日：2013-12-06

Applicant: NEC Corporation

Inventor： Jun SHIKIDA ,  Hiroto SUGAHARA ,  Hiroaki AMINAKA

IPC: H04W28/02 ,  H04J13/00 ,  H04L5/00 ,  H04B17/26

CPC classification number: H04W28/0247 ,  H04B17/26 ,  H04B17/327 ,  H04J13/00 ,  H04L5/005 ,  H04W24/08

Abstract: A method for estimating a network communication load without performing actual communication and a wireless communication terminal are provided. A wireless communication terminal (10) connectable to a network (NW) includes a load estimation section (14), and the load estimation section (14) estimates a communication load of the network NW by using a first quality index that does not depend on a network communication load and a second communication index that depends on a network communication load.

Abstract translation: 提供一种用于在不执行实际通信的情况下估计网络通信负载的方法和无线通信终端。 可连接到网络（NW）的无线通信终端（10）包括负载估计部（14），负载估计部（14）通过使用不依赖于第一质量指标的第一质量指标来估计网络NW的通信负荷 网络通信负载和依赖于网络通信负载的第二通信索引。

公开(公告)号：US20250133530A1

公开(公告)日：2025-04-24

申请号：US18836053

申请日：2022-02-14

Applicant: NEC Corporation

Inventor： Sawaka SEKI ,  Hiroaki AMINAKA ,  Masaru YANAI ,  Motoharu OHTAKE ,  Hideki MURAMATSU ,  Yoshikatsu NIWA ,  Noritsugu YAMANAKA ,  Natsumi YOKOYAMA ,  Kosei KOBAYASHI ,  Hideki KIKKAWA

IPC: H04W64/00 ,  H04B17/318

Abstract: To determine the environment of a radio channel even in a case where the distance between wireless communication apparatuses varies, an information processing system (1) includes: obtaining means (11) for obtaining distance information that indicates a distance between a first wireless communication apparatus and a second wireless communication apparatus that directly perform communication with each other through a radio channel, and quality information that is information associated with quality of the communication; decision means (12) for deciding an algorithm for determining the environment of the radio channel with reference to the distance information; and determination means (13) for determining the environment of the radio channel by using the quality information and the algorithm decided by the decision means (12).

公开(公告)号：US20240205986A1

公开(公告)日：2024-06-20

申请号：US17909838

申请日：2021-03-16

Applicant: NEC Corporation

Inventor： Kenji KOYANAGI ,  Hiroaki AMINAKA

IPC: H04W76/11

CPC classification number: H04W76/11

Abstract: In order to share a mobile communication system among a plurality of mobile communication operators for enabling provision of a more flexible service than before, an operating system 100 includes: an obtaining unit 150 configured to obtain identification information of a first terminal apparatus managed by a first mobile communication operator, and identification information of a second terminal apparatus managed by a second mobile communication operator different from the first mobile communication operator; and a first transmitting unit 160 configured to transmit, to a core network node managing a terminal apparatus connected to a core network in a mobile communication system, the identification information of the first terminal apparatus and the identification information of the second terminal apparatus.

公开(公告)号：US20240196320A1

公开(公告)日：2024-06-13

申请号：US18284632

申请日：2021-03-29

Applicant: NEC Corporation

Inventor： Kazuki OGATA ,  Hiroaki AMINAKA ,  Kosel KOBAYASHI ,  Kei YANAGISAWA ,  Jun TAKASAWA

IPC: H04W48/20 ,  G08G1/065 ,  H04W4/44

CPC classification number: H04W48/20 ,  G08G1/065 ,  H04W4/44

Abstract: A communication terminal includes a communication part for selecting one of a first antenna and a second antenna and for being capable of communicating via a wireless connection with a base station connected to the first antenna and the second antenna, the first antenna being installed at a first location across a first road, the second antenna being installed at a second location across a second road intersecting the first road; a traffic flow detection part for detecting a traffic flow on at least one of the first road and the second road; and a selection part for selecting an antenna to be connected from the first antenna and the second antenna depending on the traffic flow.

公开(公告)号：US20240147203A1

公开(公告)日：2024-05-02

申请号：US18278743

申请日：2021-03-31

Applicant: NEC Corporation

Inventor： Kosei KOBAYASHI ,  Tetsuji KAWATSU ,  Kazuki OGATA ,  Yuji SATO ,  Tetsuya TAKAKI ,  Jun TAKASAWA ,  Hiroaki AMINAKA ,  Kei YANAGISAWA

IPC: H04W4/46 ,  H04W64/00

CPC classification number: H04W4/46 ,  H04W64/00

Abstract: In one aspect, a reception means receives, from a roadside device, first information transmitted from a mobile body by using a first wireless communication. An identification means identifies, based on information of a terminal apparatus to be managed by an information management means, the terminal apparatus being located in the vicinity of the mobile body that has transmitted the first information. A transmission means transmits second information generated based on the first information, to the terminal apparatus identified by the identification means via a second wireless communication.

公开(公告)号：US20240064843A1

公开(公告)日：2024-02-22

申请号：US18374849

申请日：2023-09-29

Applicant: NEC Corporation

Inventor： Hisashi FUTAKI ,  Hiroaki AMINAKA

IPC: H04W76/19 ,  H04L5/00 ,  H04W24/04 ,  H04W48/04 ,  H04B7/24 ,  H04W16/24 ,  H04W4/30

CPC classification number: H04W76/19 ,  H04L5/001 ,  H04W24/04 ,  H04W48/04 ,  H04B7/24 ,  H04W16/24 ,  H04W4/30 ,  H04L2001/0093

Abstract: A radio terminal (3) can perform carrier aggregation using a first cell (10) of a first radio station (1) and a second cell (20) of a second radio station (2). The first radio station (1) performs, with the radio terminal (3), radio resource control for the first cell (10) and the second cell (20) in order to perform the carrier aggregation. At least one of the second radio station (2) and the radio terminal (3) is configured to transmit, to the first radio station (10), information about a problem occurring in a radio link in the second cell (20) between the second radio station (20) and the radio terminal (30) while the carrier aggregation of the first cell (10) and the second cell (20) is being performed.

公开(公告)号：US20240038062A1

公开(公告)日：2024-02-01

申请号：US18021479

申请日：2020-08-25

Applicant: NEC Corporation

Inventor： Tetsuro HASEGAWA ,  Takayuki SASAKI ,  Hiroaki AMINAKA ,  Kazuki OGATA ,  Kei YANAGISAWA ,  Kosei KOBAYASHI

IPC: G08G1/01 ,  G06V20/54

CPC classification number: G08G1/0141 ,  G08G1/0133 ,  G08G1/0116 ,  G06V20/54 ,  G06V2201/08

Abstract: An information provision apparatus includes: a data acquisition part that acquires data from a sensor(s) installed to grasp movement of a vehicle(s) traveling on a road; a database that accumulates primary data acquired by the sensor(s); a user-specific processing content storage part that stores a user-specific processing content(s) defining a processing content(s) on the primary data for each data user; a data processing part that reads out the user-specific processing content(s) stored in the user-specific processing content storage part and creates secondary data for the data user(s) from the primary data; and a data transmission part that transmits the secondary data to the data user(s).

公开(公告)号：US20230099680A1

公开(公告)日：2023-03-30

申请号：US17911475

申请日：2021-03-16

Applicant: NEC Corporation

Inventor： Yuya WADA ,  Hiroaki AMINAKA

IPC: H04W24/08 ,  H04W24/02 ,  H04B17/318 ,  H04B17/345

Abstract: In order to enable a precedent base station to perform appropriate processing on interference by a subsequent base station in a mobile communication system, a base station 201 includes an interference source specifying unit 360 configured to obtain first history information related to a received signal received by the base station 201 from a transmission source before installation of a second radio base station, and second history information related to a received signal received by the base station 201 from the transmission source after installation of the second radio base station and to specify a second radio base station which has caused interference affecting the base station 201, based on a result of comparing the first history information and the second history information.

公开(公告)号：US20220167248A1

公开(公告)日：2022-05-26

申请号：US17439475

申请日：2020-03-05

Applicant: NEC Corporation

Inventor： Masaru YANAI ,  Hiroaki AMINAKA ,  Tetsuo FUJII

IPC: H04W48/06 ,  H04W48/18 ,  H04W4/90

Abstract: One or more servers (11) communicate with one or more applications running on each of a plurality of wireless terminals (2) via a first or second cellular communication network (3, 4). Depending on a load of the first cellular communication network, the one more servers (11) select from the first and second cellular communication networks (3, 4) a cellular communication network to be used by each wireless terminal (2) to communicate with the one more servers (11). The one more servers (11) send to each wireless terminal (2) a control message to prompt each wireless terminal (2) to use the selected network. This for example makes it possible to select among a plurality of cellular communication networks in consideration of load status of the cellular communication networks.

公开(公告)号：US20220159560A1

公开(公告)日：2022-05-19

申请号：US17439505

申请日：2019-12-20

Applicant: NEC Corporation

Inventor： Masaru YANAI ,  Hiroaki AMINAKA

IPC: H04W48/18 ,  H04W48/16 ,  H04W4/90

Abstract: One or more servers (11) communicate with one or more applications running on each of a plurality of wireless terminals (2) via a first or second cellular communication network (3, 4). The one more servers (11) determine and send to each wireless terminal (2) a network selection parameter used by each wireless terminal to select from the first and second cellular communication networks (3, 4) a cellular communication network used to communicate with the one more servers (11), based on one or any combination of an application priority associated with each application, a device priority associated with each wireless terminal (2), and an organization priority associated with an organization to which the plurality of wireless terminals (2) belong. This, for example, allows priority handling regarding a public safety service to be reflected in a selection among a plurality of cellular communication networks.