公开(公告)号：US20200092736A1

公开(公告)日：2020-03-19

申请号：US16692460

申请日：2019-11-22

Applicant: NEC Corporation

Inventor： Hisashi FUTAKI ,  Hiroaki AMINAKA ,  Hiroto SUGAHARA ,  Yoshikazu KAKURA ,  Kazushi MURAOKA

IPC: H04W24/08 ,  H04W76/27 ,  H04B17/309 ,  H04B17/24 ,  H04B17/318 ,  H04B17/382 ,  H04W24/10 ,  H04W16/14 ,  H04W88/02 ,  H04W72/04 ,  H04W88/10 ,  H04L5/00 ,  H04W72/08

Abstract: A radio terminal (2) is used in a radio communication system (100) and communicates with a radio station (1). The radio terminal (2) includes a measurement unit (20). The measurement unit (20) operates to perform, using a terminal measurement procedure for executing a first terminal measurement corresponding to radio access technology applied to the radio communication system (100), a second terminal measurement of a shared frequency shared by a plurality of radio systems including the radio communication system (100).

公开(公告)号：US20180146500A1

公开(公告)日：2018-05-24

申请号：US15578271

申请日：2016-03-31

Applicant: NEC Corporation

Inventor： Kazushi MURAOKA ,  Hiroto SUGAHARA

IPC: H04W76/14 ,  H04W72/08 ,  H04W72/04 ,  H04W92/18 ,  H04W8/00 ,  H04W24/02

Abstract: A base station (2) is configured to schedule radio resources to device-to-device (D2D) transmissions (101A, 101B and 101C) performed by D2D communication pairs (3A, 3B and 3C) in accordance with an allocation rule that permits two D2D communication pairs (3A and 3C) that are not in proximity to each other to share an identical radio resource but prohibits two D2D communication pairs (3A and 3B) in proximity to each other from sharing an identical radio resource. Each D2D transmission (101) includes wirelessly transmitting from one radio terminal (1) directly to the other radio terminal (1) in each D2D communication pair (3) without passing through the base station (2). It is, thus, possible to enable efficient spatial reuse of radio resources in D2D transmissions performed by D2D communication pairs.

公开(公告)号：US20170262044A1

公开(公告)日：2017-09-14

申请号：US15508989

申请日：2015-09-07

Applicant: NEC Corporation

Inventor： Takashi TAKENAKA ,  Shuichi TAHARA ,  Kenichi OYAMA ,  Nobuharu KAMI ,  Hiroto SUGAHARA ,  Noboru SAKIMURA ,  Kosuke NISHIHARA ,  Naoki KASAI

IPC: G06F1/32

CPC classification number: G06F1/3287 ,  G06F1/32 ,  G08C17/00 ,  H04Q9/00 ,  H04W52/0219 ,  H04W52/0229 ,  Y02D70/00 ,  Y02D70/142 ,  Y02D70/162

Abstract: An information processing apparatus according to the present invention includes: a detection unit that detects detection information that is information indicating an external state of the apparatus; a communication unit that receives reception information that is a determination result given by another apparatus; and a control unit that calculates a first determination result that is a result acquired by determining a state of a surrounding of the apparatus based on the detection information and the reception information, transmits the first determination result to the another apparatus via the communication unit, and activates a necessary function for the detection unit or the communication unit and stops an unnecessary function thereof.

公开(公告)号：US20170215084A1

公开(公告)日：2017-07-27

申请号：US15406012

申请日：2017-01-13

Applicant: NEC Corporation

Inventor： Hisashi FUTAKI ,  Hiroto SUGAHARA ,  Hiroaki AMINAKA

IPC: H04W16/14 ,  H04W72/04 ,  H04W28/08 ,  H04W88/06 ,  H04W72/08 ,  H04W72/12 ,  H04W92/12

CPC classification number: H04W16/14 ,  H04W28/06 ,  H04W28/08 ,  H04W72/0453 ,  H04W72/085 ,  H04W72/087 ,  H04W72/1226 ,  H04W88/06 ,  H04W92/12

Abstract: In one embodiment, a controller (3) operates to control, based on at least one condition, utilization by a first radio station (1) of a shared frequency shared by a plurality of radio systems including a radio communication system (100). The at least one condition includes a first condition regarding communication capability on the shared frequency of at least one radio terminal (2) belonging to a cell (11) operated by the first radio station (1). This embodiment therefore contributes to efficient utilization of the shared frequency (e.g., TVWS) shared by the plurality of radio systems.

公开(公告)号：US20160057634A1

公开(公告)日：2016-02-25

申请号：US14781239

申请日：2014-03-28

Applicant: NEC CORPORATION

Inventor： Hiroto SUGAHARA ,  Hisashi FUTAKI ,  Kosei KOBAYASHI ,  Takamichi INOUE

IPC: H04W24/02 ,  H04W24/10

CPC classification number: H04W24/02 ,  H04W16/22 ,  H04W24/10

Abstract: A method and an apparatus for controlling a radio parameter, as well as a network operation management apparatus and a radio base station, are provided that enable optimization control taking a dead zone into consideration. A radio parameter control apparatus (10) for controlling a radio parameter of a radio base station (20) includes a measured data analysis section (101) that analyzes data measured by a plurality of radio terminals including a radio terminal in idle state to detect a dead zone in a radio cell, and a radio parameter control section (102) that controls the radio parameter of the radio base station based on information regarding the dead zone.

Abstract translation: 提供了一种用于控制无线电参数的方法和装置，以及网络操作管理装置和无线电基站，其能够考虑到死区的优化控制。 一种用于控制无线电基站（20）的无线电参数的无线电参数控制装置（10）包括测量数据分析部分（101），其分析包括处于空闲状态的无线电终端的多个无线电终端测量的数据，以检测 无线电小区中的死区，以及基于关于死区的信息来控制无线基站的无线参数的无线参数控制部（102）。

公开(公告)号：US20230044557A1

公开(公告)日：2023-02-09

申请号：US17968028

申请日：2022-10-18

Applicant: NEC Corporation

Inventor： Hisashi FUTAKI ,  Hiroaki AMINAKA ,  Hiroto SUGAHARA ,  Yoshikazu KAKURA ,  Kazushi MURAOKA

IPC: H04W24/08 ,  H04B17/309 ,  H04W88/10 ,  H04W72/08 ,  H04B17/382 ,  H04W16/14 ,  H04L5/00 ,  H04B17/24 ,  H04W88/02 ,  H04W24/10 ,  H04B17/318 ,  H04W72/04 ,  H04W76/27 ,  H04W88/06

Abstract: A radio terminal (2) is used in a radio communication system (100) and communicates with a radio station (1). The radio terminal (2) includes a measurement unit (20). The measurement unit (20) operates to perform, using a terminal measurement procedure for executing a first terminal measurement corresponding to radio access technology applied to the radio communication system (100), a second terminal measurement of a shared frequency shared by a plurality of radio systems including the radio communication system (100).

公开(公告)号：US20210235295A1

公开(公告)日：2021-07-29

申请号：US17229077

申请日：2021-04-13

Applicant: NEC Corporation

Inventor： Hisashi FUTAKI ,  Hiroaki AMINAKA ,  Hiroto SUGAHARA ,  Yoshikazu KAKURA ,  Kazushi MURAOKA

IPC: H04W24/08 ,  H04W76/27 ,  H04B17/309 ,  H04B17/24 ,  H04B17/318 ,  H04B17/382 ,  H04W24/10 ,  H04W16/14 ,  H04W88/02 ,  H04W72/04 ,  H04W88/10 ,  H04L5/00 ,  H04W72/08

Abstract: A radio terminal (2) is used in a radio communication system (100) and communicates with a radio station (1). The radio terminal (2) includes a measurement unit (20). The measurement unit (20) operates to perform, using a terminal measurement procedure for executing a first terminal measurement corresponding to radio access technology applied to the radio communication system (100), a second terminal measurement of a shared frequency shared by a plurality of radio systems including the radio communication system (100).

公开(公告)号：US20180255545A1

公开(公告)日：2018-09-06

申请号：US15969443

申请日：2018-05-02

Applicant: NEC Corporation

Inventor： Hisashi FUTAKI ,  Hiroto SUGAHARA ,  Hiroaki AMINAKA

IPC: H04W72/04 ,  H04W28/08 ,  H04B7/02

Abstract: A radio communication system includes a first base station that manages a first cell (110), a second base station (12) that manages a second cell (120), and a radio terminal (2). The radio terminal (2) supports dual connectivity involving a bearer split in which a first network bearer between the radio terminal (2) and a core network (3) is split over the first base station (11) and the second base station (12). The first base station (11) receives, from the second base station (12), bearer split status information about communication of the first network bearer in the second base station (12), and performs control of an access stratum related to the first network bearer. It is thus possible to contribute, for example, to an improvement in control of an access stratum when dual connectivity involving a bearer split is performed.

公开(公告)号：US20180213438A1

公开(公告)日：2018-07-26

申请号：US15743156

申请日：2016-05-16

Applicant: NEC Corporation

Inventor： Kazushi MURAOKA ,  Hiroto SUGAHARA

IPC: H04W28/06 ,  H04W72/04 ,  H04W92/18 ,  H04W76/14 ,  H04W8/00

CPC classification number: H04W28/06 ,  H04W8/005 ,  H04W72/04 ,  H04W72/0406 ,  H04W72/0446 ,  H04W72/048 ,  H04W76/14 ,  H04W88/06 ,  H04W92/18

Abstract: A transmitting terminal (1A) transmits first D2D control information (522, 523) in one or more subframes within a first subframe pool (511) within a first D2D control period (501) and performs data transmission (531-534) in accordance with the first D2D control information (522, 523) in one or more subframes within a second subframe pool (512) within the first D2D control period (501). The first D2D control information (522, 523) contains a second information element indicating whether the first D2D control information (522, 523) is valid in at least one D2D control period (502, 503) occurring after the first D2D control period (501). This makes it possible to contribute, for example, to reducing failure in reception of scheduling assignment information that is transmitted in a radio resource region for control in a periodic D2D control period and that specifies D2D transmission resources.

公开(公告)号：US20180049260A1

公开(公告)日：2018-02-15

申请号：US15556230

申请日：2015-11-18

Applicant: NEC Corporation

Inventor： Hiroaki AMINAKA ,  Hiroto SUGAHARA

IPC: H04W76/02 ,  H04W56/00 ,  H04W8/00 ,  H04W72/04

CPC classification number: H04W76/14 ,  H04W4/70 ,  H04W4/80 ,  H04W8/005 ,  H04W48/10 ,  H04W56/002 ,  H04W72/0406 ,  H04W72/048 ,  H04W72/14 ,  H04W76/27 ,  H04W88/04 ,  H04W92/18

Abstract: A radio terminal (1) is configured to, in response to receiving a request from a network (100) when the radio terminal (1) can connect to the network (100), perform sidelink communication (102) with a second radio terminal (2), which is in a state of being unable to connect to the network (100), in accordance with a pre-configured first radio parameter (1008). The sidelink communication (102) includes at least one of direct discovery and direct communication. It is thus, for example, possible to contribute to improvement of sidelink communication in partial coverage.