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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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2.
公开(公告)号:US20240236846A9
公开(公告)日:2024-07-11
申请号:US18490333
申请日:2023-10-19
Inventor: Jae Su SONG , Hee Sang CHUNG
CPC classification number: H04W52/0206 , H04W36/165
Abstract: A method of a first base station may comprise: determining, by a MT of the first base station, whether there is a terminal connected to a BSU of the first base station, when a power-off condition is satisfied in the BSU; instructing, by the MT, the terminal, which is connected to the BSU, to be handed over to a second base station, when there is a terminal connected to the BSU; instructing, by the MT, the BSU to power off the BSU, when the handover of the terminal, which is connected to the BSU, is completed; and transmitting, by the MT, a first message, which indicates a power-off state of the first base station, to the second base station, when the BSU is powered off.
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公开(公告)号:US20230036235A1
公开(公告)日:2023-02-02
申请号:US17862268
申请日:2022-07-11
Inventor: Man Ho PARK , Hee Sang CHUNG
Abstract: A method of handling an identifier conflict in a relay communication access service comprises receiving a relay communication request message from a remote terminal, obtaining an identifier of the remote terminal from the relay communication request message, assigning preliminary identifiers for identifier conflict handling based on the identifier of the remote terminal, and transmitting a relay communication response message including preliminary identifier information for the assigned preliminary identifiers to the remote terminal.
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公开(公告)号:US20220086930A1
公开(公告)日:2022-03-17
申请号:US17382914
申请日:2021-07-22
Inventor: Nam Suk LEE , Hee Sang CHUNG
Abstract: An operation method of a first terminal in a communication system may comprise: receiving a link establishment request message from a second terminal; transmitting, to the second terminal, a link establishment response message including a node address of a first base station in response to the link establishment request message; and receiving a link establishment completion message from the second terminal.
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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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6.
公开(公告)号:US20170353953A1
公开(公告)日:2017-12-07
申请号:US15609748
申请日:2017-05-31
Inventor: Bing HUI , Junhyeong KIM , Yeong Jin KIM , Il Gyu KIM , Hee Sang CHUNG
CPC classification number: H04W74/0833 , H04W56/00
Abstract: A method for transmitting and receiving a signal using steps of transmitting an uplink signal to a base station in a duration of an uplink pilot time slot (UpPTS) of a special subframe, and waiting for a guard time (GT) before receiving a downlink signal from the base station after the transmission of the uplink signal, and a terminal transmitting and receiving a signal by using the method.
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公开(公告)号:US20250096851A1
公开(公告)日:2025-03-20
申请号:US18770506
申请日:2024-07-11
Inventor: NAMSUK LEE , Hee Sang CHUNG
Abstract: Various embodiments for beam configuration in a wireless communication system are disclosed. In one embodiment, a method for configuring a beam by a base station may include determining a beam parameter including at least one of a beam width, a beam aiming direction, and a beam transmission power of a beam based on at least one of a location and an area of a reflective surface; generating beam configuration information including at least one beam based on the determined beam parameter and transmitting the beam configuration information to a controller that controls the reflecting surface; forming the at least one beam according to the beam parameter and the beam configuration information; receiving beam quality information from the controller; and adjusting beamforming based on the received beam quality information.
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8.
公开(公告)号:US20250039804A1
公开(公告)日:2025-01-30
申请号:US18917601
申请日:2024-10-16
Inventor: Jun Hyeong KIM , Seon Ae KIM , IL GYU KIM , Go San NOH , Hee Sang CHUNG , Dae Soon CHO , Sung Woo CHOI , Seung Nam CHOI , Jung Pil CHOI
IPC: H04W52/14 , H04L5/00 , H04W52/36 , H04W72/0446
Abstract: An operation method of an IAB node in a communication system may comprise: measuring a power difference between a first signal received from a first node and a second signal received from a second node; controlling a transmit power of each of the first node and the second node based on the power difference; generating scheduling information for allowing the first node and the second node to simultaneously transmit signals; transmitting the scheduling information to the first node and the second node; and receiving signals that the first node and the second node simultaneously transmit according to the scheduling information by using the transmit power.
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9.
公开(公告)号:US20240137862A1
公开(公告)日:2024-04-25
申请号:US18490333
申请日:2023-10-18
Inventor: Jae Su SONG , Hee Sang CHUNG
CPC classification number: H04W52/0206 , H04W36/165
Abstract: A method of a first base station may comprise: determining, by a MT of the first base station, whether there is a terminal connected to a BSU of the first base station, when a power-off condition is satisfied in the BSU; instructing, by the MT, the terminal, which is connected to the BSU, to be handed over to a second base station, when there is a terminal connected to the BSU; instructing, by the MT, the BSU to power off the BSU, when the handover of the terminal, which is connected to the BSU, is completed; and transmitting, by the MT, a first message, which indicates a power-off state of the first base station, to the second base station, when the BSU is powered off.
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公开(公告)号:US20220132392A1
公开(公告)日:2022-04-28
申请号:US17409038
申请日:2021-08-23
Inventor: Nam Suk LEE , Hee Sang CHUNG
IPC: H04W40/24 , H04W8/28 , H04W12/102 , H04W88/04
Abstract: An operation method of a first terminal may include: configuring a Uu access link with a base station, and receiving a first message from the base station, the first message including a relay RNTI for identifying the first terminal, a node address of the base station, and a RAP entity ID for identifying a RAP entity configured for the first terminal; configuring a relay link with a second terminal when communication with the base station is disconnected; requesting link switching by transmitting to the base station a second message via the second terminal, the second message including the relay RNTI, node address, and RAP entity ID; and receiving a response to the second message from the base station via the second terminal, and switching a link with the base station from the Uu access link to the relay link.
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