公开(公告)号：US20240396701A1

公开(公告)日：2024-11-28

申请号：US18796563

申请日：2024-08-07

Applicant: NEC Corporation

Inventor： Hisashi FUTAKI

IPC: H04L5/00 ,  H04B7/06 ,  H04W24/08 ,  H04W24/10 ,  H04W56/00 ,  H04W76/18

Abstract: When a downlink bandwidth part (BWP) is switched from a first BWP to a second BWP without a change of a cell defining synchronization signal block (SSB), if a reference signal type for Radio Link Monitoring (RLM) is set to an SSB type, a radio terminal (12) continues to use for RLM measurements a first SSB associated with the first BWP after switching of the downlink BWP to the second BWP. This for example enables the radio terminal to monitor a suitable Reference Signal (RS) for RLM measurements after switching of the DL active BWP.

公开(公告)号：US20240365094A1

公开(公告)日：2024-10-31

申请号：US18766825

申请日：2024-07-09

Applicant: NEC Corporation

Inventor： Hisashi FUTAKI

IPC: H04W4/40 ,  H04W8/24 ,  H04W36/08 ,  H04W36/38 ,  H04W48/10 ,  H04W48/20 ,  H04W72/23 ,  H04W76/10 ,  H04W88/04 ,  H04W92/18

CPC classification number: H04W4/40 ,  H04W8/24 ,  H04W36/083 ,  H04W36/38 ,  H04W48/10 ,  H04W48/20 ,  H04W72/23 ,  H04W76/10 ,  H04W88/04 ,  H04W92/18

Abstract: A base station apparatus (130, 220) in a network (410) transmits V2X support information indicating that a V2X service is supported by the network (410). In response to receiving V2X support information, a radio terminal (100, 120) transmits, to the network (410), V2X terminal information indicating that the radio terminal (100, 120) is interested in the V2X service. The network (410) transmits V2X configuration to the radio terminal (100, 120) in response to receiving the V2X terminal information transmitted from the radio terminal (100, 120). The radio terminal (100, 120) receives the V2X configuration and performs V2X communication in accordance with the V2X configuration. It is thus, for example, possible to contribute to achievement of a procedure for performing provisioning for the V2X service on the radio terminal that intends to use the V2X service.

公开(公告)号：US20240172202A1

公开(公告)日：2024-05-23

申请号：US18429824

申请日：2024-02-01

Applicant: NEC Corporation

Inventor： Toshiyuki TAMURA ,  Naoaki SUZUKI ,  Hisashi FUTAKI

IPC: H04W72/0453 ,  H04W76/15

CPC classification number: H04W72/0453 ,  H04W76/15

Abstract: A communication terminal capable of determining whether or not it can perform DC, a base station, and a communication method are provided. A communication terminal (30) according to the present disclosure includes a communication unit (31) that simultaneously communicates with a master base station (10) associated with a first radio access technology and a secondary base station (20) associated with a second radio access technology, and a control unit (32) that specifies, when it is notified by the master base station (10) that it can provide dual connectivity using the second radio access technology, at least one frequency band supported by the secondary base station (20), the secondary base station being configured to provide the dual connectivity in cooperation with the master base station (10).

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：US20240137942A1

公开(公告)日：2024-04-25

申请号：US18398605

申请日：2023-12-28

Applicant: NEC Corporation

Inventor： Hisashi FUTAKI ,  Shdafuku Hayashi

IPC: H04W72/23 ,  H04W36/00 ,  H04W36/14

CPC classification number: H04W72/23 ,  H04W36/0069 ,  H04W36/14 ,  H04W84/042

Abstract: A second RAN node (2) associated with a second RAT sends a radio resource configuration of the second RAT to a radio terminal (3) via a first RAN node (1) associated with a first RAT. The radio resource configuration explicitly or implicitly indicates at least one numerology that is included in multiple numerologies supported by the second RAT and is different from a reference numerology. It is thus, for example, possible to allow a radio terminal to be configured with a numerology of a cell served by a secondary gNB or a target gNB in Inter-RAT Dual Connectivity between E-UTRA and NR and in a handover from E-UTRA to NR.

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：US20230370906A1

公开(公告)日：2023-11-16

申请号：US18360106

申请日：2023-07-27

Applicant: NEC CORPORATION

Inventor： Hisashi FUTAKI ,  Sadafuku Hayashi

IPC: H04W36/00 ,  H04W76/15 ,  H04W36/36

CPC classification number: H04W36/0027 ,  H04W76/15 ,  H04W36/36

Abstract: A secondary node (2) transmits to a radio terminal (3), via a master node (1), a first RRC message indicating an execution condition of a conditional primary cell change of a primary cell of a secondary cell group from a first cell to a second cell. In addition, the secondary node (2) receives, via the master node (1), a second RRC message that is transmitted from the radio terminal (3) in response to a satisfaction of the execution condition. This contributes to, for example, allowing the secondary node to be aware of a satisfaction of an execution condition of a conditional PSCell change where RRC signaling between the secondary node and the radio terminal is performed via the master node.

公开(公告)号：US20230239121A1

公开(公告)日：2023-07-27

申请号：US18129602

申请日：2023-03-31

Applicant: NEC Corporation

Inventor： Hisashi FUTAKI

IPC: H04L5/00 ,  H04W76/18 ,  H04B7/06 ,  H04W24/08 ,  H04W24/10 ,  H04W56/00

CPC classification number: H04L5/0092 ,  H04W76/18 ,  H04B7/0626 ,  H04L5/0051 ,  H04W24/08 ,  H04W24/10 ,  H04W56/001

Abstract: When a downlink bandwidth part (BWP) is switched from a first BWP to a second BWP without a change of a cell defining synchronization signal block (SSB), if a reference signal type for Radio Link Monitoring (RLM) is set to an SSB type, a radio terminal (12) continues to use for RLM measurements a first SSB associated with the first BWP after switching of the downlink BWP to the second BWP. This for example enables the radio terminal to monitor a suitable Reference Signal (RS) for RLM measurements after switching of the DL active BWP.

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.