METHOD AND APPARATUS FOR CONTROLLING ACTIVATION OF RLC LAYERS IN WIRELESS COMMUNICATION SYSTEM

    公开(公告)号:US20240251471A1

    公开(公告)日:2024-07-25

    申请号:US18586271

    申请日:2024-02-23

    CPC classification number: H04W76/27 H04W76/22

    Abstract: Provided is a method of performing communication by using a plurality of Radio Link Control (RLC) entities in a wireless communication system, the method including: receiving a packet duplication configuration for a radio bearer from a base station (BS) via a Radio Resource Control (RRC) message; configuring a plurality of RLC entities including one primary RLC entity and one or more secondary RLC entities which correspond to a preset Packet Data Convergence Protocol (PDCP) entity, based on the packet duplication configuration; and receiving a Medium Access Control Control Element (MAC CE) for controlling activation or deactivation of the one or more secondary RLC entities from among the plurality of configured RLC entities.

    Small data transmission without path switch procedure

    公开(公告)号:US12022550B2

    公开(公告)日:2024-06-25

    申请号:US17422999

    申请日:2020-03-12

    CPC classification number: H04W76/19 H04W76/22 H04W76/27

    Abstract: A method and apparatus for small data transmission without a path switch procedure in a wireless communication system is provided. A new gNB, which is a radio access network (RAN) node to which a wireless device attempts a connection resume procedure while in an inactive state, receives an anchor kept indication and/or a small data indication from a last serving gNB. The anchor kept indication indicates that the last serving gNB keeps a user equipment (UE) context and/or a UE-associated NG connection with the core network. The small data indication indicates not relocating a UE context from the last serving gNB to the new gNB.

    Method and apparatus for bearer traffic migration in multi-connectivity systems

    公开(公告)号:US11917448B2

    公开(公告)日:2024-02-27

    申请号:US17383668

    申请日:2021-07-23

    CPC classification number: H04W28/0252 H04L5/0032 H04W76/22 H04W36/0069

    Abstract: A method and apparatus for forwarding data in wireless communication systems with multi-connectivity is disclosed. In one embodiment, a method for performing a data forwarding by a first wireless communication node, includes: receiving a first message from a first middle wireless communication node, wherein the first message comprises a first node identity of a second wireless communication node; determining a first connection for at least one first corresponding bearer between the first wireless communication node and the second wireless communication node according to the first node identity; transmitting a second message to the first middle wireless communication node, wherein the second message comprises at least one first data forwarding address of the first wireless communication node for the at least one first corresponding bearer; and receiving a third message from the second wireless communication node.

    Support of user plane transactions over a mobile network

    公开(公告)号:US11910292B2

    公开(公告)日:2024-02-20

    申请号:US14360993

    申请日:2012-11-26

    Applicant: Alcatel Lucent

    Abstract: In an embodiment, there is provided an architecture for the support of user plane transactions over a mobile network between an User Equipment UE and an IP network, the mobile network comprising at least one node, referred to as control plane node, supporting control plane transactions between the UE and the mobile network over control plane bearer, the architecture includes the UE and the control plane node adapted to support user plane transactions over the mobile network between the UE and the control plane node, over control plane bearer, the control plane node adapted to support user plane transactions over the mobile network between the control plane node and the IP network without need of user plane bearer in the mobile network, the control plane node interfacing, with or without IP tunneling, with a gateway function interfacing with the IP network.

    Radio access network node, core network node, radio terminal, and methods therefor

    公开(公告)号:US11877187B2

    公开(公告)日:2024-01-16

    申请号:US18093603

    申请日:2023-01-05

    Abstract: A master RAN node (1) sends, to a control plane function (5) in a core network (4), a modification request for modification of a first PDU session already established between a radio terminal (3) and a user plane function (6) in the core network (4). The modification request implicitly or explicitly indicates that PDU session split is needed for the first PDU session. The modification request causes the control plane function (5) to control the user plane function (6) to move a specific one or more QoS flows of a plurality of QoS flows associated with the first PDU session from a first tunnel between the user plane function (6) and the master RAN node (1) to a second tunnel between the user plane function (6) and a secondary RAN node (2). This contributes, for example, to implementing PDU session split in a radio communication network.

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