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    Beam management method using hierarchical beams, and apparatus therefor
    1.
    发明授权
    Beam management method using hierarchical beams, and apparatus therefor 有权

    公开(公告)号：US12238660B2

    公开(公告)日：2025-02-25

    申请号：US17890351

    申请日：2022-08-18

    Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

    Inventor： Sung Hyun Moon ,  Young-Jo Ko ,  Cheul Soon Kim ,  Jung Hoon Lee

    IPC: H04J3/06 ,  H04B17/318 ,  H04W56/00 ,  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.

    Method and apparatus for uplink communication in unlicensed band
    6.
    发明授权
    Method and apparatus for uplink communication in unlicensed band 有权

    公开(公告)号：US11564223B2

    公开(公告)日：2023-01-24

    申请号：US16880833

    申请日：2020-05-21

    Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

    Inventor： Sung Hyun Moon ,  Cheul Soon Kim ,  Jung Hoon Lee

    IPC: H04W72/04 ,  H04L1/18

    Abstract: An operation method of a terminal may comprise receiving information on one CG configuration for uplink transmission from a base station; obtaining common time domain resource allocation information for combinations of RB sets based on the information on the one CG configuration; obtaining frequency domain resource allocation information for each of the combinations of the RB sets based on the information on the one CG configuration; determining a number of PRBs to which an uplink channel is mapped based on the frequency domain resource allocation information corresponding to one combination of the combinations; determining a TBS based on the common time domain resource allocation information and the number of PRBs; and transmitting a TB having the TBS to the base station within the one combination through the uplink channel according to the common time domain resource allocation information and the frequency domain resource allocation information.

    Method and apparatus for initial access in communication system
    10.
    发明授权
    Method and apparatus for initial access in communication system 有权

    公开(公告)号：US12225591B2

    公开(公告)日：2025-02-11

    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: H04W74/0833 ,  H04W72/0446

    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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