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    RADIO TERMINAL, RADIO STATION, AND METHOD THEREFOR
    71.
    发明申请
    RADIO TERMINAL, RADIO STATION, AND METHOD THEREFOR 有权

    公开(公告)号：US20210160665A1

    公开(公告)日：2021-05-27

    申请号：US17104128

    申请日：2020-11-25

    Applicant: NEC CORPORATION

    Inventor： Hisashi Futaki ,  Sadafuku HAYASHI

    IPC: H04W4/14 ,  H04W88/10 ,  H04W76/20 ,  H04W48/18 ,  H04W88/06 ,  H04W76/27

    Abstract: A radio terminal (1) is configured to transmit data using a first communication architecture type, in response to an occurrence of a request for specific data transmission when the radio terminal (1) has already been configured by a network (3) to use a second communication architecture type. This contributes to, for example, when the radio terminal has already been configured by the network to use the second communication architecture type that involves suspension and resumption of an RRC connection, facilitating effectively performing communication according to the first communication architecture type that involves data transmission over a control plane.

    RADIO TERMINAL, BASE STATION, AND METHODS AND NON-TRANSITORY COMPUTER-READABLE MEDIA THEREFOR
    74.
    发明申请
    RADIO TERMINAL, BASE STATION, AND METHODS AND NON-TRANSITORY COMPUTER-READABLE MEDIA THEREFOR 审中-公开

    公开(公告)号：US20200163148A1

    公开(公告)日：2020-05-21

    申请号：US16475722

    申请日：2017-11-21

    Applicant: NEC CORPORATION

    Inventor： Hisashi FUTAKI ,  Sadafuku HAYASHI

    IPC: H04W76/27 ,  H04W72/04 ,  H04W36/00 ,  H04W36/36 ,  H04W68/02

    Abstract: A radio terminal (2) controls state transitions of the radio terminal (2) among first to third RRC states. In addition, if the radio terminal (2) is in the second RRC state, if a current cell that the radio terminal (2) has camped on is different from a first cell in which a state transition from the first RRC state to the second RRC state was performed, and if the current cell satisfies a predetermined condition, the radio terminal (2) allows the radio terminal (2) to transmit data to be transmitted in the current cell by a first transmission procedure in which the radio terminal (2) transmits uplink data before entering the first RRC state.

    COMMUNICATION SYSTEM
    76.
    发明申请
    COMMUNICATION SYSTEM 审中-公开

    公开(公告)号：US20190261231A1

    公开(公告)日：2019-08-22

    申请号：US16301062

    申请日：2017-05-10

    Applicant: NEC Corporation

    Inventor： Sivapathalingham SIVAVAKEESAR ,  Sadafuku HAYASHI

    IPC: H04W36/00 ,  H04W36/14

    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.

    RADIO ACCESS NETWORK NODE, RADIO TERMINAL, CORE NETWORK NODE, AND METHOD THEREFOR
    77.
    发明申请
    RADIO ACCESS NETWORK NODE, RADIO TERMINAL, CORE NETWORK NODE, AND METHOD THEREFOR 审中-公开

    公开(公告)号：US20190182737A1

    公开(公告)日：2019-06-13

    申请号：US16321864

    申请日：2017-05-16

    Applicant: NEC CORPORATION

    Inventor： Hisashi FUTAKI ,  Sadafuku HAYASHI

    IPC: H04W36/14 ,  H04W36/36 ,  H04W24/10

    Abstract: A target RAN node (3) is configured to: receive, directly from a core network (5), core network context information about a handover of a radio terminal (1) from a first network to the second network; and control communication of the radio terminal (1) based on the core network context information. The target RAN node (3) is further configured to transfer a handover signaling message to a source RAN node on a direct interface (101) in response to receiving the core network context information. The core network context information includes at least one of flow information, slice information, and security-related information. It is thus possible, for example, to provide an inter-RAT handover procedure involving transfer of handover signaling messages on a direct inter-base-station interface.

    FIRST UNIT, SECOND UNIT AND METHOD
    79.
    发明申请
    FIRST UNIT, SECOND UNIT AND METHOD 审中-公开

    公开(公告)号：US20190174342A1

    公开(公告)日：2019-06-06

    申请号：US16270161

    申请日：2019-02-07

    Applicant: NEC CORPORATION

    Inventor： Toshihiro YOKOYAMA ,  Sadafuku HAYASHI

    IPC: H04W24/10 ,  H04L12/26 ,  H04W76/15 ,  H04W88/10 ,  H04W88/12

    Abstract: In order to make it possible to report an amount of data from a secondary node (SN) to a master node (MN) in dual connectivity, there is provided a first unit according to the present disclosure which is a first unit of a central unit of a first base station. The first unit includes a controller and a transceiver. The central unit is configured to host at least PDCP layer in the first base station; and is connected to a distributed unit via a first interface, the distributed unit hosting RLC, MAC and PHY layers in the first base station. The controller is configured to host at least a user plane of the PDCP layer hosted by the central unit; and the transceiver is configured to transmit, to a second unit via a second interface, first information indicative of a volume of data processed by the first unit. The second unit is configured to host at least a control plane of the PDCP layer hosted by the central unit.

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