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    METHOD AND APPARATUS FOR REASSIGNMENT OF ACCESS AND MOBILITY MANAGEMENT FUNCTION IN COMMUNICATION SYSTEM
    3.
    发明公开
    METHOD AND APPARATUS FOR REASSIGNMENT OF ACCESS AND MOBILITY MANAGEMENT FUNCTION IN COMMUNICATION SYSTEM 审中-公开

    公开(公告)号：US20240214902A1

    公开(公告)日：2024-06-27

    申请号：US18557177

    申请日：2022-04-22

    申请人： SAMSUNG ELECTRONICS CO., LTD.

    发明人： Taehyung LIM ,  Jungje SON ,  Duckey LEE

    IPC分类号： H04W36/38 ,  H04W12/033 ,  H04W36/00 ,  H04W60/00

    CPC分类号： H04W36/385 ,  H04W12/033 ,  H04W36/0038 ,  H04W60/00

    摘要： A method for carrying out AMF reassignment in a communication system may comprise the steps of: transmitting, to an NSSF, a first request message including at least one of a first parameter for requesting a public key of an AMF that is to be reassigned and a second parameter for requesting a token related to the AMF that is to be reassigned; receiving, from the NSSF, a first response message including at least one of information indicating a target AMF set, and a public key of the target AMF set or the token; generating, on the basis of first security context for user equipment, an SC container including second security context for a target AMF; encrypting the SC container by using the public key; and transmitting, to the target AMF via a radio access network related to the user equipment, at least one of the encrypted SC container, additional information related to encryption of the SC container, and the token.

    COORDINATED ROAMING FOR LOW ENERGY ROAMING AWARE PERIPHERAL DEVICES
    4.
    发明公开
    COORDINATED ROAMING FOR LOW ENERGY ROAMING AWARE PERIPHERAL DEVICES 审中-公开

    公开(公告)号：US20240196282A1

    公开(公告)日：2024-06-13

    申请号：US18080135

    申请日：2022-12-13

    申请人： Silicon Laboratories Inc.

    发明人： Hasan Ali Stationwala

    IPC分类号： H04W36/00 ,  H04W36/08 ,  H04W36/30 ,  H04W36/38

    CPC分类号： H04W36/0058 ,  H04W36/0016 ,  H04W36/08 ,  H04W36/30 ,  H04W36/385

    摘要： A BLE system includes a network controller, peripherals, and centrals. As one of the peripherals begins to roam, the current central in a connection with the peripheral detects when the peripheral device is moving away from the current central and reports the roaming to the network controller. The peripheral receives a request from the current central to advertise for handoff evaluation during the connection and the other centrals receive requests from the network controller or from one or more of the centrals to scan for handoff evaluation purposes. The centrals determine the received signal strength from the received advertising packets and send the received signal strengths to the network controller. The network controller determines a next target central based on the received signal strengths. The network controller then causes the peripheral to disconnect from the current central and the current central advertises and establishes a connection with the next target central.

    Radio access network node, radio terminal, core network node, and method therefor
    9.
    发明授权
    Radio access network node, radio terminal, core network node, and method therefor 有权

    公开(公告)号：US11910258B2

    公开(公告)日：2024-02-20

    申请号：US16321998

    申请日：2017-05-15

    申请人： NEC Corporation

    发明人： Hisashi Futaki ,  Sadafuku Hayashi

    IPC分类号： H04W36/00 ,  H04W36/14 ,  H04W36/38 ,  H04W92/20

    CPC分类号： H04W36/14 ,  H04W36/0033 ,  H04W36/0038 ,  H04W92/20

    摘要： In response to receiving from a source RAN node (2), on a direct interface (101), a message requesting a handover of a radio terminal (1) from a first network to a second network, a target RAN node (3) receives at least one of slice information and flow information from a core network (5), and controls communication of the radio terminal (1) based on at least one of the slice information and the flow information. The slice information relates to a network slice in the second network. The flow information relates to at least one session to be established in the second network, serving as a bearer-less network, in order to transfer at least one packet flow of the radio terminal (1). 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.