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    HANDLING OF RESIDUAL TIMING ADVANCE
    12.
    发明公开
    HANDLING OF RESIDUAL TIMING ADVANCE 审中-公开

    公开(公告)号：US20240284278A1

    公开(公告)日：2024-08-22

    申请号：US18443261

    申请日：2024-02-15

    Applicant: Nokia Technologies Oy

    Inventor： Rafhael MEDEIROS DE AMORIM ,  Alessio MARCONE ,  Jedrzej STANCZAK ,  Frank FREDERIKSEN

    IPC: H04W36/00 ,  H04W36/08

    CPC classification number: H04W36/00725 ,  H04W36/083

    Abstract: The invention inter alia pertains to an apparatus for communication with a non-terrestrial network, NTN, the apparatus comprising means configured for:



    receiving, from the network, a handover configuration regarding a handover to be performed by the apparatus from a source cell to a target cell of the network;
    receiving, from the network, assistance information for the apparatus to connect to said target cell; determining, based on the assistance information, a type of the handover or receiving, from the network, an indication of a type of the handover;
    determining, based on the handover type, a threshold for a timing advance parameter;
    determining, based on the threshold and a value of the timing advance parameter, whether to perform a RACH-less handover towards the target cell.

    LINK RECOVERY VIA CELLS PREPARED WITH INFORMATION FOR HANDOVERS INCLUDING CHO AND DAPS
    15.
    发明公开
    LINK RECOVERY VIA CELLS PREPARED WITH INFORMATION FOR HANDOVERS INCLUDING CHO AND DAPS 审中-公开

    公开(公告)号：US20230262545A1

    公开(公告)日：2023-08-17

    申请号：US18003987

    申请日：2021-06-28

    Applicant: Nokia Technologies Oy

    Inventor： Jedrzej STANCZAK ,  Srinivasan SELVAGANAPATHY ,  Ahmad AWADA

    IPC: H04W36/00 ,  H04W36/30

    CPC classification number: H04W36/0079 ,  H04W36/00835 ,  H04W36/305

    Abstract: A UE receives configuration from a source cell for conditional handover for target cell(s). At least one of the target cell(s) also supports DAPS handover. The UE determines that either a RLF or HOF has occurred. The UE selects one of the target cell(s) for a handover, and performs a process for handover to the selected target cell. A UE receives individual handover commands and corresponding configuration for conditional handover for target cell(s) and an indication to use DAPS handover if possible in response to a handover. The UE determined condition(s) for handover to one of the target cell(s) have triggered, wherein the one target cell supports DAPS handover. The UE performs, based on the indication to use DAPS handover if possible in response to a handover, handover by the user equipment to the one target cell without releasing the source cell while accessing the one target cell.

    FALLBACK TO CONDITIONAL HANDOVER USING SSB REFERENCE SIGNAL
    16.
    发明申请
    FALLBACK TO CONDITIONAL HANDOVER USING SSB REFERENCE SIGNAL 有权

    公开(公告)号：US20230036845A1

    公开(公告)日：2023-02-02

    申请号：US17391370

    申请日：2021-08-02

    Applicant: Nokia Technologies OY

    Inventor： Ahmad AWADA ,  Christian ROM ,  Samantha CAPORAL DEL BARRIO ,  Ingo VIERING ,  Jedrzej STANCZAK

    IPC: H04W36/00 ,  H04W56/00

    Abstract: In a system, apparatus, method, and non-transitory computer readable medium for implementing fallback to conditional handover using a SSB reference signal, a UE device may be caused to, receive RRC reconfiguration information from a source RAN node, the RRC reconfiguration information including a SSB RS based CHO execution condition associated with at least one target cell controlled by a target RAN node, and a CSI-RS based CHO execution condition associated with the target cell(s), perform signal measurements of at least one SSB RS and at least one CSI-RS associated with the target cell(s), the at least one CSI-RS associated with a contention-free random access resource, and perform the CHO with the target cell(s) based on the signal measurement results of the at least one SSB RS, the at least one CSI-RS, the SSB based CHO execution condition, and the CSI-RS based CHO execution condition.

    HANDOVER OF A COORDINATED MULTI-POINT CONNECTION
    17.
    发明申请
    HANDOVER OF A COORDINATED MULTI-POINT CONNECTION 有权

    公开(公告)号：US20220191748A1

    公开(公告)日：2022-06-16

    申请号：US17119185

    申请日：2020-12-11

    Applicant: NOKIA TECHNOLOGIES OY

    Inventor： Ingo VIERING ,  Panagiotis SPAPIS ,  Alperen GÜNDOGAN ,  Ahmad AWADA ,  Jedrzej STANCZAK ,  Timo KOSKELA

    IPC: H04W36/00 ,  H04W36/08 ,  H04W76/27 ,  H04W56/00

    Abstract: Certain example embodiments provide systems, methods, apparatuses, and computer program products for a handover of a coordinated multi-point connection. For example, certain embodiment may transfer a first coordinated multi-point connection (e.g., a further enhanced multiple input multiple output (FeMIMO) connection) to a second coordinated multi-point connection where the network may instruct the UE to not perform at least one random access procedure. The first coordinated multi-point connection may be controlled by a first cell (the serving cell) where the UE is ready to receive from and transmit to a first set of cells that comprises the serving cell and one or more non-serving cells. After handover, the second coordinated multi-point connection may be controlled by a previous non-serving cell, and the UE may be ready to receive from and transmit to a second set of cells that comprises the previous non-serving cell.

    DUAL CONNECTIVITY HANDOVER
    18.
    发明申请
    DUAL CONNECTIVITY HANDOVER 有权

    公开(公告)号：US20210168674A1

    公开(公告)日：2021-06-03

    申请号：US17263238

    申请日：2018-08-21

    Applicant: Nokia Technologies OY

    Inventor： Jing HE ,  Tero HENTTONEN ,  Amaanat ALI ,  Jedrzej STANCZAK

    IPC: H04W36/00 ,  H04W74/08 ,  H04W36/08

    Abstract: The method includes determining a first type of a target network device for a first handover, the first type indicating whether a network device is a master network device or a secondary network device; transmitting a first message indicating the first type of the target network device for the first handover, so that the terminal device is disconnected with the first type of a source network device; and in response to the terminal device being connected with the first type of the target network device, a second message indicating that the first handover is completed, and the terminal device being connected with a second type of a target network device and disconnected with the second type of a source network device in a second handover, the second type being different from the first type and indicating whether a network device is a master network device or a secondary network device.

    CONDITIONAL HANDOVER RECOVERY IN NON-TERRESTRIAL NETWORKS
    19.
    发明申请
    CONDITIONAL HANDOVER RECOVERY IN NON-TERRESTRIAL NETWORKS 有权

    公开(公告)号：US20250168738A1

    公开(公告)日：2025-05-22

    申请号：US18726888

    申请日：2022-01-05

    Applicant: Nokia Technologies Oy

    Inventor： Jedrzej STANCZAK ,  Ahmad AWADA ,  Mads LAURIDSEN ,  Jeroen WIGARD

    IPC: H04W36/36 ,  H04W76/19

    Abstract: Systems, methods, and apparatuses for CHO recovery in NTN are provided. One method may include a UE selecting at least one cell of a NTN, determining whether the selected cell is a CHO candidate cell and, when it is determined that the selected cell is a CHO candidate cell, evaluating one or more CHO conditions. The evaluating may include: determining if a timer measuring a duration of a time window within which the UE is allowed to execute the CHO is running or if a distance between the UE and the selected cell is below a configurable threshold, determining if an expiration of the timer or the distance is within a defined offset, and/or determining if the selected at least one cell is within a chain of CHOs list. When it is determined that the CHO condition(s) are met, attempting the CHO procedure to the selected cell.

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