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公开(公告)号:US20240291521A1
公开(公告)日:2024-08-29
申请号:US18586294
申请日:2024-02-23
Inventor: Jun Hyeong KIM , Il Gyu KIM , Hee Sang CHUNG , Sung Woo CHOI
IPC: H04B7/04 , H04B17/318 , H04W72/231
CPC classification number: H04B7/04013 , H04B17/328 , H04W72/231
Abstract: A method performed by a base station may comprise: transmitting, to a first reconfigurable intelligent surface (RIS) node, first control information for the first RIS node; transmitting, to a terminal, first information of the first RIS node based on the first control information; and transmitting a first signal to the first RIS node and the terminal while the first RIS node is in an activated state according to the first control information, wherein the first signal is transmitted to the terminal through a path reaching the terminal from the base station via the first RIS node and a path directly reaching the terminal from the base station.
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公开(公告)号:US20240155505A1
公开(公告)日:2024-05-09
申请号:US18499114
申请日:2023-10-31
Inventor: Jun Hyeong KIM , Go San NOH , Seon Ae KIM , Il Gyu KIM , Hee Sang CHUNG , Dae Soon CHO , Sung Woo CHOI , Seung Nam CHOI , Jung Pil CHOI
CPC classification number: H04W52/245 , H04W52/242 , H04W52/42
Abstract: A method of a first user equipment (UE) may comprise: receiving a downlink (DL) reference signal transmitted by a base station using a beam included in a beam candidate group to be used for sidelink (SL) communication with a second UE; measuring a DL reference signal received power (RSRP) of the DL reference signal; determining a transmit power of a beam included in the beam candidate group based on the measured DL RSRP; and transmitting SL data to the second UE with the determined transmit power.
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公开(公告)号:US20230217384A1
公开(公告)日:2023-07-06
申请号:US18092597
申请日:2023-01-03
Inventor: Go San NOH , Jun Hyeong KIM , Seon Ae KIM , Il Gyu KIM , Hee Sang CHUNG , Dae Soon CHO , Sung Woo CHOI , Seung Nam CHOI , Jung Pil CHOI
CPC classification number: H04W56/001 , H04W24/10 , H04W16/28
Abstract: An operation method of a first terminal may include: transmitting a plurality of sidelink-synchronization signal blocks (S-SSBs); performing a monitoring operation on a plurality of response resources associated with the plurality of S-SSBs; receiving a first response signal from a second terminal in a first response resource among the plurality of response resources; identifying a first S-SSB associated with the first response resource among the plurality of S-SSBs; and determining a first transmission beam through which the first S-SSB is transmitted among a plurality of transmission beams of the first terminal as an optimal transmission beam.
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公开(公告)号:US20190159259A1
公开(公告)日:2019-05-23
申请号:US16181448
申请日:2018-11-06
Inventor: Jun Hyeong KIM , Bing HUI , Il Gyu KIM , Go San NOH , Hee Sang CHUNG , Sung Woo CHOI
Abstract: An operation method of a terminal in a communication system includes receiving a message from a base station, the message including physical random access channel (PRACH) configuration information indicating a PRACH slot; determining a start symbol to which a PRACH is mapped among symbols constituting the PRACH slot based on a type of the PRACH slot; mapping the PRACH from the start symbol in the PRACH slot; and transmitting the PRACH mapped to the PRACH slot to the base station.
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公开(公告)号:US20180324865A1
公开(公告)日:2018-11-08
申请号:US15971301
申请日:2018-05-04
Inventor: Bing HUI , Il Gyu KIM , Junhyeong KIM , Gosan NOH , Hee Sang CHUNG , Sung Woo CHOI
Abstract: A method for transmitting and receiving a message for a random access (RA) between user equipment (UE) and a base station in a multi beam system includes: transmitting a synchronization signal (SS) block including a synchronization signal by performing beam sweeping for a multi beam; receiving a message 1 of an RA procedure from the UE; determining an optimal transmission beam to be used to transmit a message 2 of the RA procedure based on information about an association mapping between the SS block and a physical random access channel (PRACH) which is used to transmit the message 1; and transmitting the message 2 by using the optimal transmission beam.
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公开(公告)号:US20240413857A1
公开(公告)日:2024-12-12
申请号:US18738637
申请日:2024-06-10
Inventor: Jun Hyeong KIM , Seon Ae KIM , IL GYU KIM , Hee Sang CHUNG , Sung Woo CHOI
Abstract: A method of a reconfigurable intelligent surface (RIS) node may comprise: receiving, from a first transmitting node, control information for controlling the first RIS node; grouping reflecting elements of the first RIS node into at least one reflecting element group using the control information; and transmitting at least one signal incident on the at least one reflecting element group to a receiving node.
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公开(公告)号:US20180279364A1
公开(公告)日:2018-09-27
申请号:US15934320
申请日:2018-03-23
Inventor: Bing HUI , IL GYU KIM , Junhyeong KIM , Gosan NOH , Hee Sang CHUNG , Sung Woo CHOI
CPC classification number: H04W74/085 , H04B7/0695 , H04B7/088 , H04L5/0007 , H04W16/28 , H04W56/001 , H04W74/0833
Abstract: A method and an apparatus for random access in a mobile communication system are provided. A terminal receives a synchronization signal block, obtains beam index information from the received synchronization signal block, and transmits a preamble message occupying a plurality of preamble resources including a preamble resource corresponding to the beam index information to a base station. A random access resource includes a plurality of preamble resources, and the synchronization signal block is specified for one beam and corresponds to one preamble resource of the random access resource.
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公开(公告)号:US20240015631A1
公开(公告)日:2024-01-11
申请号:US18252117
申请日:2021-11-05
Inventor: Jun Hyeong KIM , IL GYU KIM , Go San NOH , Hee Sang CHUNG , Dae Soon CHO , Sung Woo CHOI , Seung Nam CHOI , Jung Pil CHOI
IPC: H04W40/12 , H04W40/22 , H04B17/318
CPC classification number: H04W40/12 , H04W40/22 , H04B17/328 , H04W92/20
Abstract: Disclosed are a relay method and device in a communication system. An operation method of a first communication node comprises the steps of: transmitting a reference signal to one or more candidate R nodes; receiving first feedback information including a minimum value of a first RSRP from a first candidate R node belonging to the one or more candidate R nodes; receiving second feedback information including a minimum value of a second RSRP from a second candidate R node belonging to the one or more candidate R nodes; comparing a first value based on the first feedback information with a second value based on the second feedback information; when the first value is greater than the second value, selecting the first candidate R node as an R node that is to perform a relaying operation; and communicating with a second communication node via the R node.
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公开(公告)号:US20230292348A1
公开(公告)日:2023-09-14
申请号:US18117757
申请日:2023-03-06
Inventor: Jun Hyeong KIM , Go San NOH , Seon Ae KIM , Il Gyu KIM , Hee Sang CHUNG , Dae Soon CHO , Sung Woo CHOI , Seung Nam CHOI , Jung Pil CHOI
IPC: H04W72/40 , H04W72/02 , H04W72/044
CPC classification number: H04W72/40 , H04W72/02 , H04W72/044
Abstract: A method of a transmitting terminal may include: setting an initial beam pairing flag indicating that the transmitting terminal transmitting sidelink-synchronization signal blocks (S-SSBs) is not a synchronization reference terminal; transmitting a plurality of S-SSBs including the initial beam pairing flag in a beam sweeping scheme; receiving, from a receiving terminal, information on a preferred beam among a plurality of beams through which the plurality of S-SSBs are transmitted; and transmitting data to the receiving terminal using the preferred beam.
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公开(公告)号:US20230136976A1
公开(公告)日:2023-05-04
申请号:US17965489
申请日:2022-10-13
Inventor: Sung Woo CHOI
Abstract: A method for managing HARQ processes in a terminal of a mobile communication system supporting uplink, downlink, and sidelink transmission is provided. The method for managing HARQ processes includes: receiving a data source ID and a HARQ process ID set to at least one of the uplink, downlink, and sidelink transmission through a control channel; searching a new HARQ process ID mapped corresponding to the combination of the data source ID and the HARQ process ID with reference to the HARQ process table; and operating a HARQ process corresponding to the new HARQ process ID.
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