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    APPARATUS, METHOD, AND COMPUTER PROGRAM
    11.
    发明公开
    APPARATUS, METHOD, AND COMPUTER PROGRAM 审中-公开

    公开(公告)号：US20240284276A1

    公开(公告)日：2024-08-22

    申请号：US18442064

    申请日：2024-02-14

    Applicant: Nokia Technologies Oy

    Inventor： Ahmad AWADA ,  Sanjay GOYAL ,  Ali KARIMIDEHKORDI ,  Bernhard WEGMANN ,  Ugur Baran ELMALI ,  Timo KOSKELA

    IPC: H04W36/00 ,  H04W36/30

    CPC classification number: H04W36/0072 ,  H04W36/30

    Abstract: There is provided a method, computer program, and apparatus for causing an apparatus for a first access node to perform: establishing a connection towards a user equipment via a serving cell supported by the first access node; instructing the user equipment to obtain a first timing advance value for a target cell supported by a second access node, wherein the first timing advance value indicates a timing for transmitting uplink transmissions to the target cell; receiving, from the user equipment, an indication that the first timing advance value is or will soon be invalid; and determining whether to instruct the user equipment to obtain a second timing advance value for the target cell in dependence on the received indication, the second timing advance value being obtained later in time than the first timing advance value.

    Method for Beam Recovery
    14.
    发明公开
    Method for Beam Recovery 审中-公开

    公开(公告)号：US20230262819A1

    公开(公告)日：2023-08-17

    申请号：US18110102

    申请日：2023-02-15

    Applicant: Nokia Technologies Oy

    Inventor： Ali KARIMIDEHKORDI ,  Samantha CAPORAL DEL BARRIO ,  Benny VEJLGAARD ,  Simon SVENDSEN

    IPC: H04W76/19 ,  H04B7/08 ,  H04L5/00

    CPC classification number: H04W76/19 ,  H04B7/088 ,  H04L5/0051

    Abstract: An apparatus including: circuitry for receiving reference signals including a plurality of channel synchronization signal blocks and/or state information reference signals on a downlink channel; circuitry for measuring received signal power and/or quality level of said reference signals; circuitry for estimating arrival directions or an arrival antenna panel for a plurality of beams associated with said reference signals; circuitry for estimating, based on at least the received signal power and/or quality level, a required transmission power for a random access channel preamble for each beam; circuitry for selecting, in response to detecting a failure of a serving beam, another of said beams according to spatial diversity and/or required transmission power; and circuitry for sending the random access channel preamble on the selected beam.

    MANAGING COEXISTENCE OF USER EQUIPMENT-BASED AND RANDOM ACCESS CHANNEL-BASED TIMING ADVANCE VALUES
    15.
    发明申请
    MANAGING COEXISTENCE OF USER EQUIPMENT-BASED AND RANDOM ACCESS CHANNEL-BASED TIMING ADVANCE VALUES 有权

    公开(公告)号：US20250126635A1

    公开(公告)日：2025-04-17

    申请号：US18911617

    申请日：2024-10-10

    Applicant: Nokia Technologies Oy

    Inventor： Umur KARABULUT ,  Anastasios KAKKAVAS ,  Sanjay GOYAL ,  Ali KARIMIDEHKORDI ,  Panagiotis SPAPIS

    IPC: H04W74/00 ,  H04W48/20 ,  H04W72/02 ,  H04W72/044 ,  H04W72/23

    Abstract: A method is provided that includes receiving a configuration of selection criteria for a timing advance (TA) of a target cell, acquired by respective acquisition schemes including a user equipment (UE)-based acquisition scheme and a random access channel (RACH)-based acquisition scheme. The method includes acquiring a UE-based TA value according to the UE-based acquisition scheme, and transmitting a random access preamble to the target cell that is configured to acquire a RACH-based TA value according to the RACH-based acquisition scheme. The method includes receiving a cell-switch command from a serving cell to trigger a cell switch to the target cell, after the UE-based TA value and the RACH-based TA value are acquired. And the method includes accessing the target cell using a TA value selected from the UE-based TA value and the RACH-based TA value, based on the configuration.

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