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    METHOD AND APPARATUS FOR INTERWORKING BETWEEN MULTIPLE DRONE COMMUNICATIONS
    11.
    发明申请
    METHOD AND APPARATUS FOR INTERWORKING BETWEEN MULTIPLE DRONE COMMUNICATIONS 有权

    公开(公告)号：US20220407588A1

    公开(公告)日：2022-12-22

    申请号：US17526666

    申请日：2021-11-15

    Applicant: Electronics and Telecommunications Research Institute

    Inventor： Hee Wook KIM

    IPC: H04B7/185 ,  H04W76/15

    Abstract: An operation method of a first communication node may comprise: establishing a first wireless connection with a GCS; establishing a second wireless connection with the GCS; transmitting and receiving data to and from the GCS through a first end-to-end connection based on the first wireless connection; reporting a communication quality of the first wireless connection to the GCS; receiving a link switch request from the GCS; switching a link from the first wireless connection to the second wireless connection based on the link switch request; and transmitting and receiving data through a second end-to-end connection based on the second wireless connection.

    METHODS AND PROCEDURES FOR DYNAMIC CHANNEL ASSIGNMENT AND CHANGE IN UNMANNED AIRCRAFT SYSTEM (UAS) CONTROL AND NON-PAYLOAD COMMUNICATION
    12.
    发明申请
    METHODS AND PROCEDURES FOR DYNAMIC CHANNEL ASSIGNMENT AND CHANGE IN UNMANNED AIRCRAFT SYSTEM (UAS) CONTROL AND NON-PAYLOAD COMMUNICATION 有权

    公开(公告)号：US20210282129A1

    公开(公告)日：2021-09-09

    申请号：US17326237

    申请日：2021-05-20

    Applicant: Electronics and Telecommunications Research Institute

    Inventor： Hee Wook KIM ,  Jae Young AHN

    IPC: H04W72/04

    Abstract: A dynamic channel assignment method includes receiving, at a ground control station (GCS), assignment of a first communication channel set from a spectrum authority before takeoff of the unmanned aircraft; receiving, at the GCS, assignment of a second communication channel set when the unmanned aircraft is to move from a first area using the first communication channel set to a second area using the second communication channel set due to a flight plan of the unmanned aircraft after takeoff of the unmanned aircraft; and after the unmanned aircraft enters the second area, maintaining, at the GCS, the first communication channel set when the unmanned aircraft reenters the first area due to the flight plan, and returning, at the GCS, the first communication channel set to the spectrum authority when the unmanned aircraft does not reenter the first area due to the flight plan.

    METHOD AND APPARATUS FOR TRANSMITTING DATA OF UNMANNED AERIAL VEHICLE CONTROL SYSTEM
    13.
    发明申请
    METHOD AND APPARATUS FOR TRANSMITTING DATA OF UNMANNED AERIAL VEHICLE CONTROL SYSTEM 审中-公开

    公开(公告)号：US20200005653A1

    公开(公告)日：2020-01-02

    申请号：US16141763

    申请日：2018-09-25

    Applicant: Electronics and Telecommunications Research Institute

    Inventor： Hee Wook KIM

    IPC: G08G5/00 ,  H04W4/40 ,  H04W52/32 ,  H04W52/36 ,  H04W52/38

    Abstract: Disclosed is a method and apparatus for transmitting data of an unmanned aerial vehicle control system. According to an embodiment of the present disclosure, provided is a method of transmitting data of an unmanned aerial vehicle control system, the method including: connecting an unmanned aerial vehicle to a ground radio station via a mission data link and a non-mission data link; checking a maximum transmit power of the non-mission data link; checking a margin value of the non-mission data link considering a state of the unmanned aerial vehicle; checking a required transmit power of the non-mission data link by applying the margin value of the non-mission data link; and determining a transmit power of the non-mission data link by comparing the maximum transmit power with the required transmit power.

    METHOD AND APPARATUS FOR MITIGATING SATELLITE DOWNLINK INTERFERENCE OF SATELLITE AND TERRESTRIAL INTEGRATED SYSTEM
    15.
    发明申请
    METHOD AND APPARATUS FOR MITIGATING SATELLITE DOWNLINK INTERFERENCE OF SATELLITE AND TERRESTRIAL INTEGRATED SYSTEM 审中-公开
    降低卫星和陆地综合系统卫星下行干扰的方法与装置

    公开(公告)号：US20150188644A1

    公开(公告)日：2015-07-02

    申请号：US14302941

    申请日：2014-06-12

    Applicant: Electronics and Telecommunications Research Institute

    Inventor： Kunseok KANG ,  Tae Chul HONG ,  Hee Wook KIM ,  Bon Jun KU

    IPC: H04B15/00 ,  H04W72/04 ,  H04W24/10 ,  H04B7/204

    CPC classification number: H04B15/00 ,  H04B7/18563 ,  H04B7/2041 ,  H04L1/00 ,  H04W72/0453 ,  H04W84/06

    Abstract: A method in which a satellite or a terrestrial earth station that is included in a satellite communication system that shares a frequency resource with a terrestrial communication system allocates a frequency resource is provided. The satellite divides an area of a first satellite beam into at least one sector. The satellite determines a first sector in which a satellite terminal is located among the at least one sector. The satellite determines a second sector corresponding to the first sector among at least one sector that is included in a first terrestrial cell. The satellite allocates at least one of first frequency resources for the second sector to the satellite terminal. The first terrestrial cell is located within an area of a second satellite beam adjacent to the first satellite beam.

    Abstract translation: 提供了一种方法，其中包括在与地面通信系统共享频率资源的卫星通信系统中的卫星或地面地球站分配频率资源。 卫星将第一卫星光束的区域划分成至少一个扇区。 卫星确定卫星终端位于至少一个扇区中的第一扇区。 卫星在包括在第一陆地小区中的至少一个扇区中确定对应于第一扇区的第二扇区。 卫星将第二扇区的第一频率资源中的至少一个分配给卫星终端。 第一个地面单元位于与第一卫星波束相邻的第二卫星波束的区域内。

    METHOD AND APPARATUS FOR CELL SELECTION IN NON-TERRESTRIAL NETWORK
    16.
    发明申请
    METHOD AND APPARATUS FOR CELL SELECTION IN NON-TERRESTRIAL NETWORK 有权

    公开(公告)号：US20250119781A1

    公开(公告)日：2025-04-10

    申请号：US18904881

    申请日：2024-10-02

    Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

    Inventor： Hee Wook KIM

    IPC: H04W24/10 ,  G01S19/25 ,  G01S19/42

    Abstract: A method of a terminal may comprise: calculating a first adjusted distance threshold by adjusting a first reference distance threshold of a serving cell, based on information on a first reference location of the serving cell, ephemeris information of a satellite, and a location of the terminal; calculating a second adjusted distance threshold by adjusting a second reference distance threshold of a neighbor cell, based on information on a second reference location of the neighbor cell, the ephemeris information, and the location of the terminal; performing a distance-based measurement reporting process by applying the first adjusted distance threshold and the second adjusted distance threshold; and selecting a cell through the distance-based measurement reporting process.

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