公开(公告)号：US20130344870A1

公开(公告)日：2013-12-26

申请号：US13924975

申请日：2013-06-24

Applicant: NEC CORPORATION

Inventor： Jun NAGATA ,  Naoto ITABA ,  Seiji KONDO ,  Sadafuku HAYASHI

IPC: H04W36/02

CPC classification number: H04W36/023 ,  H04L1/187 ,  H04L1/1896 ,  H04L2001/0092 ,  H04W36/02 ,  H04W92/20

Abstract: Provided is a handover originating base station which transmits data to a handover destination base station, for performing mobile communication terminal handover in a mobile communication system. The handover originating base station is provided with a means for transmitting data whose transmission is not confirmed by a communication terminal, with information which indicates data transmitted just before.

Abstract translation: 提供了一种切换发起基站，其向切换目的地基站发送数据，用于在移动通信系统中执行移动通信终端切换。 切换起始基站设置有用于发送传输未被通信终端确认的数据的装置，其中指示刚才发送的数据的信息。

公开(公告)号：US20240155727A1

公开(公告)日：2024-05-09

申请号：US18411272

申请日：2024-01-12

Applicant: NEC Corporation

Inventor： Sadafuku HAYASHI ,  Hisashi FUTAKI

IPC: H04W76/27 ,  H04B7/0426 ,  H04W68/00 ,  H04W76/11

CPC classification number: H04W76/27 ,  H04B7/043 ,  H04W68/005 ,  H04W76/11

Abstract: A gNB central unit (gNB-CU) includes a transmitter and a receiver. The transmitter is configured to transmit a message to a gNB distributed unit (gNB-DU). The receiver is configured to receive from the gNB-DU, in response to the message, a list indicating User Equipments (UEs) which needs to be notified by dedicated signaling of system information.

公开(公告)号：US20240056895A1

公开(公告)日：2024-02-15

申请号：US18383497

申请日：2023-10-25

Applicant: NEC Corporation

Inventor： Hisashi FUTAKI ,  Sadafuku HAYASHI

IPC: H04W28/20 ,  H04W76/27 ,  H04W76/10 ,  H04W80/02 ,  H04W72/23

CPC classification number: H04W28/20 ,  H04W76/27 ,  H04W76/10 ,  H04W80/02 ,  H04W72/23 ,  H04W72/0453

Abstract: A radio access network (RAN) node (11) is configured to send, to another RAN node (12), first control information regarding at least one of one or more bandwidth parts (BWPs) configured in a system bandwidth. It is thus, for example, possible to contribute to inter-radio access network (RAN) node (e.g., inter-gNB) signaling enhanced to handle bandwidth parts.

公开(公告)号：US20240023006A1

公开(公告)日：2024-01-18

申请号：US18371004

申请日：2023-09-21

Applicant: NEC Corporation

Inventor： Hisashi FUTAKI ,  Sadafuku HAYASHI

IPC: H04W36/14 ,  H04W36/00 ,  H04W76/20

CPC classification number: H04W36/144 ,  H04W36/0022 ,  H04W76/20

Abstract: A second RAN node (2) sends to a radio terminal (3), via a first RAN node (1), an indication of available on-demand system information that is available in a cell of the second RAN node (2). It is thus, for example, possible to enabling notifying a UE of an indication about on-demand system information available in a cell served by a secondary gNB of Inter-RAT dual connectivity between E-UTRA and NR, or available in a cell served by a target gNB of Inter-RAT handover from E-UTRA to NR.

公开(公告)号：US20230345532A1

公开(公告)日：2023-10-26

申请号：US17626572

申请日：2021-07-30

Applicant: NEC Corporation

Inventor： Chadi KHIRALLAH ,  Sadafuku HAYASHI

IPC: H04W74/08 ,  H04W76/30

CPC classification number: H04W74/0816 ,  H04W76/30

Abstract: A communication system is disclosed in which a base station performs Listen-Before-Talk (LBT) communication with an item of user equipment (UE) via at least one cell. When the base station of the UE detects a failure associated with the LBT communication in at least one cell, the base station transmits a signalling message to another node (e.g., a central unit, a master node, a secondary node, or a core network node), the signalling message comprising information indicating that LBT failure has been detected. The information is used by the other node in managing the LBT communication with the UE (e.g., releasing resources, deactivating cells, etc.).

公开(公告)号：US20230077825A1

公开(公告)日：2023-03-16

申请号：US17992357

申请日：2022-11-22

Applicant: NEC Corporation

Inventor： Sadafuku HAYASHI ,  Hisashi FUTAKI

IPC: H04W76/27 ,  H04B7/0426 ,  H04W68/00 ,  H04W76/11

Abstract: A gNB central unit (gNB-CU) includes a transmitter and a receiver. The transmitter is configured to transmit a message to a gNB distributed unit (gNB-DU). The receiver is configured to receive from the gNB-DU, in response to the message, a list indicating User Equipments (UEs) which needs to be notified by dedicated signaling of system information.

公开(公告)号：US20230065539A1

公开(公告)日：2023-03-02

申请号：US17458844

申请日：2021-08-27

Applicant: NEC CORPORATION

Inventor： Sivapathalingham SIVAVAKEESAR ,  Sadafuku HAYASHI

IPC: H04W36/14 ,  H04W36/00

Abstract: A system is disclosed in which a base station performs an Automatic Neighbour Relation (ANR) operation in relation to a Wireless Local Area Network (WLAN) and obtains, from a mobile communication device (UE) or a Mobility Management Entity (MME), the Transport Network layer (TNL) address associated with a WLAN Termination node of the WLAN for establishing a connection between the base station and the WLAN Termination node.

公开(公告)号：US20230022252A1

公开(公告)日：2023-01-26

申请号：US17949284

申请日：2022-09-21

Applicant: NEC Corporation

Inventor： Chadi KHIRALLAH ,  Yassin Aden AWAD ,  Sadafuku HAYASHI ,  Tao GUO ,  Robert ARNOTT

IPC: H04L5/00 ,  H04W72/04

Abstract: A communication system is disclosed in which an NR radio access network (RAN) node identifies resources, that the NR RAN node is to use for transmissions, for protection from interference from another RAN node. The NR RAN node sends, to the other RAN node, information indicating the identified resources for protection from interference. The information indicating the identified resources comprises a list of parameters, typically including resource bitmaps, based on which the other RAN node is able to determine the resources for protection from interference.

公开(公告)号：US20220286922A1

公开(公告)日：2022-09-08

申请号：US17628628

申请日：2020-10-02

Applicant: NEC Corporation

Inventor： Yuhua CHEN ,  Sadafuku HAYASHI ,  Jagdeep Ahluwalia SINGH ,  Chadi KHIRALLAH

IPC: H04W36/00 ,  H04W36/08 ,  H04W76/19 ,  H04W76/30 ,  H04W76/20

Abstract: In one aspect, a method performed by a base station in a Non-Public Network includes: operating a closed access group (CAG) cell; establishing a communication connection with a user equipment (UE) in the CAG cell, wherein the CAG cell is associated with a CAG having an associated CAG identifier; suspending the communication connection; receiving, from a further base station, a first message indicating that the UE has requested resumption of the communication connection in a CAG cell operated by the further base station, the first message including a CAG identifier of a CAG which the CAG cell operated by the further base station is associated with; performing CAG membership verification for the CAG identified by the CAG identifier in the first message; and sending, to the further base station, a second message indicating a result of the CAG membership verification.

公开(公告)号：US20220191823A1

公开(公告)日：2022-06-16

申请号：US17689151

申请日：2022-03-08

Applicant: NEC Corporation

Inventor： Sivapathalingham SIVAVAKEESAR ,  Robert PATERSON ,  Toshiyuki TAMURA ,  Sadafuku HAYASHI

IPC: H04W68/00 ,  H04W76/19 ,  H04W76/27

Abstract: A communication system is disclosed in which am anchor base station receives, from a core network node, downlink data for a communication device. The base station attempts (e.g. by RAN-based paging) to initiate communication with the communication device, and when the communication device does not respond to the attempt to initiate communication, the base station sends a message to the core network node, the message requesting initiation of a paging procedure for the communication device (e.g. S1-based paging).