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公开(公告)号：US20240243781A1
公开(公告)日：2024-07-18
申请号：US18390592
申请日：2023-12-20
Inventor： An Seok LEE , Heesoo LEE , Seung Jae BAHNG , Jung Sook BAE
CPC classification number: H04B7/04026 , H04B7/01
Abstract: Disclosed are a method and an apparatus for codebook design in a communication system. A method of a base station may comprise: transmitting a pilot signal to a terminal by using a reconfigurable intelligent surface (RIS); receiving, from the terminal, channel information measured based on the pilot signal; estimating characteristics of elements of the RIS based on the channel information; generating a codebook based on the estimated characteristics of the elements; and transmitting the codebook to a controller of the RIS.
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公开(公告)号：US20230171675A1
公开(公告)日：2023-06-01
申请号：US17994914
申请日：2022-11-28
Inventor： An Seok LEE , Heesoo LEE , Seung Jae BAHNG , Jung Sook BAE
CPC classification number: H04W48/08 , H04B7/0695 , H04W16/28 , H04B7/15
Abstract: An operation method of a first device in a communication system may comprise: receiving, at a second device, a primary synchronization signal block (SSB) including first SSBs for the first device; feeding back to the second device an index of a first SSB with a highest received signal strength among the first SSBs of the first SSB set; receiving, at the second device, a second SSB set including the first SSBs for the first device and second SSBs for a third device; transmitting to the third device the second SSBs for the third device in the second SSB set; and forwarding an index of a second SSB with a highest received signal strength among the second SSBs to the second device, the index being received from the third device.
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Patent Agency Ranking
公开(公告)号：US20220408331A1
公开(公告)日：2022-12-22
申请号：US17826569
申请日：2022-05-27
Inventor： Soon Gi PARK , Jun Sik KIM , Seung Jae BAHNG , Jung Sook BAE , Heesoo LEE
Abstract: A method for controlling base stations in a wireless communication system may include: performing a monitoring operation on a first base station forming a first cell in a predetermined communication area; determining whether the first base station needs to be replaced; when the first base station needs to be replaced, controlling a second base station to move in a direction of the first base station and form a second cell; when coverages of the first and second cells overlap fully or partially, decreasing a transmit power of the first base station and increasing a transmit power of the second base station; and in response to identifying that all of one or more communication nodes connected to the first cell are handed over to the second base station, determining that the first base station is successfully replaced with the second base station.
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公开(公告)号：US20220224386A1
公开(公告)日：2022-07-14
申请号：US17575596
申请日：2022-01-13
Inventor： An Seok LEE , Heesoo LEE , Seung Jae BAHNG , Jung Sook BAE
IPC: H04B7/06 , H04L5/00 , H04B7/0413 , H04L25/02
Abstract: An operation method of a terminal for initial access in a communication system may comprise: receiving a plurality of SSBs having different indexes through a plurality of antennas included in a base station; calculating a channel capacity using the plurality of SSBs; feeding back, to the base station, index(es) of one or more SSBs for having a maximum channel capacity among the plurality of SSBs; and performing communication with the base station through a combination of two or more antennas that have transmitted the one or more SSBs for having the maximum channel capacity among the plurality of antennas.
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公开(公告)号：US20230080611A1
公开(公告)日：2023-03-16
申请号：US17942522
申请日：2022-09-12
Inventor： Kyung Yeol SOHN , Jung Sook BAE , Heesoo LEE
IPC: H04B7/06 , H04W24/10 , H04B17/318 , G01S19/51 , H04W16/28
Abstract: A method for setting up a mobile backhaul link, performed by a hub in a mobile backhaul system, may comprise: calculating a separation distance between the hub and a mobile backhaul terminal using GPS position information; selecting a beam width and a beam search scheme of at least one beam to be used for setting up the mobile backhaul link according to the separation distance; transmitting ID(s) of the at least one beam to the mobile backhaul terminal through the at least one beam having the beam width according to the beam search scheme; receiving the ID(s) of the at least one beam and a measurement result of the at least one beam from the mobile backhaul terminal; and selecting a first beam having a largest signal strength according to the measurement result, wherein the first beam is used for setting up the mobile backhaul link.
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公开(公告)号：US20220272716A1
公开(公告)日：2022-08-25
申请号：US17681212
申请日：2022-02-25
Inventor： An Seok LEE , Heesoo LEE , Seung Jae BAHNG , Jung Sook BAE
Abstract: An operation method performed by an access point in a communication system may comprise: transmitting, to a first station, a first frame by using a third communication scheme, the first frame including information on an address of the first station, a first transmission time length, a first reception order, and a first communication scheme to be used for transmitting data to the first station, and information on a second transmission time length, a second reception order, and a second communication scheme to be used for transmitting second data to one or more second stations; receiving, from the first station, a first response frame for the first frame from the first station at a first reception time; and receiving, from the second station, a second response frame for the first frame at a second reception time.
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公开(公告)号：US20220150719A1
公开(公告)日：2022-05-12
申请号：US17520165
申请日：2021-11-05
Inventor： Soon Gi PARK , Jun Sik KIM , Seung Jae BAHNG , Jung Sook BAE , Heesoo LEE
Abstract: A beam alignment method performed by a first communication node in a communication system may comprise: identifying a position of a first antenna of the first communication node; configuring a first coordinate system based on a physical position and direction of the first antenna, based on information on the position of the first antenna; identifying a position of a second antenna of a second communication node of the communication system; converting information on the position of the second antenna into coordinate information based on the first coordinate system; calculating direction change values of the first antenna based on the information on the position of the second antenna, which is converted based on the first coordinate system; changing a direction of the first antenna based on the direction change values of the first antenna; and updating a beam alignment state between the first and second antennas.
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