公开(公告)号：US20180234882A1

公开(公告)日：2018-08-16

申请号：US15886412

申请日：2018-02-01

Applicant: Electronics and Telecommunications Research Institute

Inventor： Seung Kwon CHO ,  Won Ik KIM ,  Seung Kwon BAEK ,  Jae Su SONG

IPC: H04W28/06 ,  H04W72/04 ,  H04W72/12 ,  H04W88/04

CPC classification number: H04W28/065 ,  H04B1/38 ,  H04W72/0426 ,  H04W72/1278 ,  H04W80/02 ,  H04W88/04 ,  H04W88/085

Abstract: An operation method of a first communication node in a communication network, which supports a radio link control (RLC) function among functions of a base station, may comprise receiving a first message from a second communication node supporting a packet data convergence protocol (PDCP) function among the functions of the base station; processing the received first message by performing the RLC function; and transmitting the processed first message to a third communication node supporting a medium access control (MAC) function and physical (PHY) functions among the functions of the base station.

公开(公告)号：US20210160823A1

公开(公告)日：2021-05-27

申请号：US17096238

申请日：2020-11-12

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Seung Kwon CHO ,  Kyoung Seok LEE ,  Soo Jung JUNG ,  Tae Gyun NOH

IPC: H04W72/04 ,  H04L27/26

Abstract: A resource management method performed by a CP in C-RAN system includes configuring M user-centric cells for M terminals with a plurality of ANs, and determining a number K of orthogonal resource sharing groups sharing a same orthogonal resource; selecting K user-centric cells as group headers for the K orthogonal resource sharing groups, and adding the selected K user-centric cells as group headers to the K orthogonal resource sharing groups; configuring the K orthogonal resource sharing groups by sequentially adding ungrouped user-centric cells to the K orthogonal resource sharing groups; and dividing total system resources into K orthogonal resources, and mapping the divided K orthogonal resources to the K orthogonal resource sharing groups, respectively.

公开(公告)号：US20180124859A1

公开(公告)日：2018-05-03

申请号：US15800835

申请日：2017-11-01

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Seung Kwon CHO ,  Seok Ki KIM ,  Won Ik KIM ,  Eun Kyung KIM ,  Jae Heung KIM ,  Jae Su SONG ,  Sung Pil SHIN ,  Sei Yun SHIN ,  Mi Young YUN ,  Soo Jung JUNG ,  Yun Hee CHO ,  Tae Joong KIM ,  Seung Kwon BAEK

IPC: H04W76/12 ,  H04W56/00 ,  H04W8/26 ,  H04W40/24 ,  H04W28/02

CPC classification number: H04W76/12 ,  H04W8/26 ,  H04W28/021 ,  H04W36/0009 ,  H04W40/246 ,  H04W56/0025 ,  H04W84/18 ,  H04W88/08

Abstract: An operation method of a first communication node, which controls a plurality of communication nodes included in a mobile xhaul network supporting mobility, may comprise performing an attach procedure between the first communication node and a second communication node among the plurality of communication nodes; configuring a path for communications between the second communication node and a third communication node for which attach procedure has been completed among the plurality of communication nodes; and supporting communications of the second communication node and the third communication node using the configured path.

公开(公告)号：US20250056353A1

公开(公告)日：2025-02-13

申请号：US18798731

申请日：2024-08-08

Applicant: Electronics and Telecommunications Research Institute

Inventor： Seung Kwon CHO ,  Mi Young YUN ,  Moon Sik LEE ,  Jun Hwan LEE

IPC: H04W36/08 ,  H04W36/00

Abstract: A method of a terminal may comprise: obtaining target satellite-related information from a source satellite; performing satellite switching from the source satellite to a target satellite based on the target satellite-related information; and performing communication with the target satellite based on the target satellite-related information after performing the satellite switching.

公开(公告)号：US20240357460A1

公开(公告)日：2024-10-24

申请号：US18629353

申请日：2024-04-08

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Seung Kwon CHO ,  Mi Young YUN ,  Moon Sik LEE ,  Jun Hwan LEE

IPC: H04W36/32 ,  H04W36/00 ,  H04W36/08

CPC classification number: H04W36/322 ,  H04W36/0061 ,  H04W36/0083 ,  H04W36/083

Abstract: A method of a terminal may comprise: acquiring, from a non-terrestrial network (NTN) base station, system information (SI) including information indicating either a (quasi-) Earth-fixed cell or an Earth-moving cell (EMC); in response to the SI indicating an EMC, calculating a first distance between a location of the terminal and a reference location; and determining whether to perform measurement for cell reselection based on a comparison result between the first distance and a threshold distance included in the SI and ephemeris information of a satellite included in the SI.