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    BEAM MANAGEMENT METHOD USING HIERARCHICAL BEAMS, AND APPRATUS THEREFOR
    1.
    发明申请
    BEAM MANAGEMENT METHOD USING HIERARCHICAL BEAMS, AND APPRATUS THEREFOR 有权

    公开(公告)号：US20250159621A1

    公开(公告)日：2025-05-15

    申请号：US19021702

    申请日：2025-01-15

    Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

    Inventor： Sung Hyun MOON ,  Young-Jo KO ,  Cheul Soon KIM ,  Jung Hoon LEE

    IPC: H04W56/00 ,  H04B17/318 ,  H04W74/0833

    Abstract: A method of a terminal may include: receiving, from a base station, at least one SSB belonging to a first layer; receiving, from the base station, at least one SSB belonging to a second layer; determining valid SSB(s) from among the at least one SSB belonging to the first layer and the at least one SSB belonging to the second layer; selecting at least one first SSB belonging to a layer having a higher priority among the first layer and the second layer from among the valid SSB(s); and reporting the selected first SSB to the base station, and using a beam used for receiving the first SSB to perform an initial access procedure for communications with the base station, wherein each SSB includes at least one of a synchronization signal or a broadcast channel.

    CELL COVERAGE EXTENDING METHOD AND DEVICE THEREFOR
    3.
    发明申请
    CELL COVERAGE EXTENDING METHOD AND DEVICE THEREFOR 有权

    公开(公告)号：US20240429994A1

    公开(公告)日：2024-12-26

    申请号：US18686374

    申请日：2022-08-26

    Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

    Inventor： Sung Hyun MOON ,  Cheul Soon KIM ,  Jung Hoon LEE

    IPC: H04B7/06 ,  H04B7/0456 ,  H04W16/26 ,  H04W72/0446

    Abstract: An operation method of a relay in a mobile communication system may comprise the steps of: receiving information relating to a backhaul reception beam and/or a backhaul transmission beam from a base station; receiving information relating to an access link transmission beam and/or an access link reception beam from the base station or obtaining information relating to an access link transmission beam and/or an access link reception beam from the information relating to the backhaul reception beam and/or backhaul transmission beam; communicating with the base station by using the backhaul reception beam and/or the backhaul transmission beam formed using the information relating to the backhaul reception beam and/or backhaul transmission beam; and communicating with a terminal by using the access link transmission beam and/or the access link reception beam formed using the information relating to the access link transmission beam and/or access link reception beam.

    METHOD AND APPARATUS FOR INITIAL ACCESS IN COMMUNICATION SYSTEM
    7.
    发明申请
    METHOD AND APPARATUS FOR INITIAL ACCESS IN COMMUNICATION SYSTEM 有权

    公开(公告)号：US20220279590A1

    公开(公告)日：2022-09-01

    申请号：US17681290

    申请日：2022-02-25

    Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

    Inventor： Jung Hoon LEE ,  Cheul Soon KIM ,  Sung Hyun MOON

    IPC: H04W74/08 ,  H04W72/04

    Abstract: An operation method of a terminal in a communication system may comprise: receiving, from a base station, a first SSB; determining a RACH occasion associated with the first SSB; transmitting, to the base station, a PRACH preamble in the RACH occasion within a first radio resource to which a first SCS is applied; determining a slot to which the RACH occasion belongs based on a reference radio resource to which a reference SCS is applied instead of the first SCS; determining an RNTI for a random access procedure based on a slot index for the slot; and performing a reception operation of a response for the PRACH preamble by using the RNTI in the first radio resource.

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