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    Data transmission with stateless routing
    1.
    发明授权
    Data transmission with stateless routing 有权

    公开(公告)号：US12185390B2

    公开(公告)日：2024-12-31

    申请号：US17480445

    申请日：2021-09-21

    Applicant: Nokia Technologies Oy

    Inventor： Philippe Godin ,  Daniela Laselva ,  Subramanya Chandrashekar ,  Rakash Sivasiva Ganesan ,  Srinivasan Selvaganapathy ,  Alberto Martínez-Alba

    IPC: H04W4/00 ,  H04W12/106 ,  H04W12/75 ,  H04W76/10

    Abstract: Systems, methods, apparatuses, and computer program products for data transmission with stateless routing are provided. Certain embodiments may include a radio resource control (RRC)—less or RRC-based mechanism for short data transmission (SDT) in an RRC inactive state, where the mechanism may be performed without storing or establishing a UE context in a distributed unit (DU), for a UE served by a single CU-user plane (UP). Certain embodiments may include a RRC-less mechanism for SDT in an RRC inactive state, where the authentication of the user equipment (UE) may be performed at the UP using UP integrity protection (IP) in a CU-UP. Certain embodiments may include a RRC-based mechanism for SDT in an RRC inactive state, where the authentication of the UE may be performed at the UP using UP IP in a CU-UP and/or at the CP using CP IP in a CU-CP.

    Small data transmission routing
    2.
    发明授权
    Small data transmission routing 有权

    公开(公告)号：US12015948B2

    公开(公告)日：2024-06-18

    申请号：US17485975

    申请日：2021-09-27

    Applicant: Nokia Technologies Oy

    Inventor： Philippe Godin ,  Subramanya Chandrashekar ,  Daniela Laselva

    IPC: H04W28/06 ,  H04L12/46

    CPC classification number: H04W28/06 ,  H04L12/4633

    Abstract: Systems, methods, apparatuses, and computer program products for inter-gNB small data transmission (SDT) routing at a radio access network (RAN). A method may include transmitting an initial request message from a first element in a first network node, to a second element in the first network node to obtain context information. The method may also include receiving, at the first element, a context setup request message based on the context information containing a transport layer information of a third element of a second network node and context information of a user equipment in the second network node. The method may further include processing a data packet according to the received context information. In addition, the method may include forwarding the data packet to the third element of the second network node according to the received transport layer information.

    NG based context release and data forwarding for multi-hop mobility
    4.
    发明授权
    NG based context release and data forwarding for multi-hop mobility 有权

    公开(公告)号：US12185219B2

    公开(公告)日：2024-12-31

    申请号：US17470305

    申请日：2021-09-09

    Applicant: Nokia Technologies Oy

    Inventor： Subramanya Chandrashekar ,  Daniela Laselva ,  Ahlem Khlass ,  Philippe Godin

    IPC: H04W40/24 ,  H04W36/00 ,  H04W36/02 ,  H04W72/27 ,  H04W76/32

    Abstract: A method, apparatus, and a computer-readable storage medium are provided for NG based context release and data forwarding for multi-hop mobility. In an example implementation, the method may include a core network entity receiving a first message from a first network node, the first message including at least one of a user equipment context release request and a data forwarding request and detecting the at least one of the user equipment context release request and the data forwarding request from the first message. The method may further include sending a second message including at least one of a user equipment context release command and data forwarding information to a second network node based at least on the detected at least one of the user equipment context release request and the data forwarding request.

    User equipment context duplication
    8.
    发明授权
    User equipment context duplication 有权

    公开(公告)号：US11678398B2

    公开(公告)日：2023-06-13

    申请号：US17998745

    申请日：2021-05-05

    Applicant: Nokia Technologies Oy

    Inventor： Daniela Laselva ,  Subramanya Chandrashekar ,  Ahlem Khlass

    IPC: H04W76/25 ,  H04W76/19

    CPC classification number: H04W76/25 ,  H04W76/19

    Abstract: Systems, methods, apparatuses, and computer program products for user equipment (UE) context duplication. In certain embodiments, when a UE may resume at a target network node within its configured radio area, a duplication of a UE context may occur at the target network node, and the target network node may allocate an additional/secondary identifier to the UE. The secondary identifier may indicate the UE's identity within the network. When configured with a secondary identifier, the UE may retain an original/primary identifier assigned by the anchor network node. The anchor network node may retain the UE context and may maintain user plane connectivity to a core network. The UE may use this primary identifier for operations within the configured radio area, whereas the secondary identifier may be used when resuming operations to a cell that is outside of the configured radio area.

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