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41.发明授权公开(公告)号：US11160114B2
公开(公告)日：2021-10-26
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：US10708026B2
公开(公告)日：2020-07-07
申请号：US16042838
申请日：2018-07-23
Inventor： Yu Ro Lee , Jae Woo Park , Jae Seung Lee , Jee Yon Choi , Il Gyu Kim , Seung Chan Bang
IPC: H04L5/00 , H04B17/336 , H04B7/024 , H04L27/26 , H04B7/0452 , H04B7/06
Abstract: Disclosed are a frame transmission method and a communication device performing the same. The communication device may transmit a null data packet (NDP)-announcement (NDP-A) including information on a plurality of communication devices participating in interference alignment and transmit an NDP including a common signal field and a common training field commonly applied to the plurality of communication devices.
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公开(公告)号：US10542537B2
公开(公告)日：2020-01-21
申请号：US15652488
申请日：2017-07-18
Inventor： Junhyeong Kim , Bing Hui , Il Gyu Kim , Jun Hwan Lee , Hoon Lee , Hee Sang Chung
Abstract: A high speed moving terminal including first and second antennas each communicating with first and second radio units (RUs) of a base station distributedly installed in a mobile wireless backhaul network communicates with the first and second RUs, respectively, with different uplink-downlink configuration of the first RU and the second RU, and transmits control information of the corresponding downlink signal in an uplink subframe that comes first in the time domain after processing latency of a downlink signal received from the first RU among uplink frames with the uplink-downlink configurations of the first RU and the second RU if the downlink signal is received from the first RU through the first antenna.
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公开(公告)号：US20190296807A1
公开(公告)日：2019-09-26
申请号：US16440641
申请日：2019-06-13
Inventor： Yu Ro Lee , Jae Woo Park , Jae Seung Lee , Jee Yon Choi , Il Gyu Kim , Seung Chan Bang
IPC: H04B7/0452 , H04B7/06 , H04L5/00 , H04W72/04
Abstract: A wireless communication method and apparatus in a wireless local area network (WLAN) system are disclosed. A wireless communication method according to one embodiment may include generating a high-efficiency Wi-Fi (HEW) frame including at least one of an HEW-SIG-A field and an HEW-SIG-B field which include channel information for communications according to an Orthogonal Frequency-Division Multiple Access (OFDMA) mode, and transmitting the generated HEW frame to a reception apparatus.
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公开(公告)号：US10080204B2
公开(公告)日：2018-09-18
申请号：US15286600
申请日：2016-10-06
Inventor： Il Gyu Kim , Hyeong Geun Park , Young Jo Ko , Kapseok Chang , Hyo Seok Yi , Young Hoon Kim , Seung Chan Bang
CPC classification number: H04W56/001 , H04J11/0069 , H04J11/0093 , H04L5/0037 , H04L5/005 , H04L5/0053 , H04L27/2613 , H04L27/2655 , H04L27/2675 , H04W36/0061 , H04W36/08 , H04W56/00
Abstract: A method of searching a cell in a mobile station of a communication system in which a plurality of cells are grouped into a plurality of cell groups, each cell group including at least two cells, includes: detecting a primary synchronization signal and a secondary synchronization signal from a received signal; and identifying a cell based on a combination of the primary synchronization signal and the secondary synchronization signal. The secondary synchronization signal is related to the cell group to which the mobile station belongs and the primary synchronization signal is related to the cell to which the mobile station belongs within the cell group.
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Patent Agency Ranking
公开(公告)号：US09979528B2
公开(公告)日：2018-05-22
申请号：US14947194
申请日：2015-11-20
Inventor： Jae Woo Park , Il Gyu Kim , Yu Ro Lee , Jae Seung Lee , Jee Yon Choi
CPC classification number: H04L5/0055 , H04W74/008 , H04W74/0816
Abstract: Provided is a data communication method performed at a transmission node, the method including collecting a node list including nodes communicable with the transmission node, exchanging the node list with each of the communicable nodes, determining an allowance of a space recycling transmission to a reception node by determining that the transmission node is a corresponding node as an exposed node in response to an occurrence of a clear-to-send (CTS) timeout, and transmitting data to the reception node based on a result of determining the allowance of the space recycling transmission.
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公开(公告)号：US09906339B2
公开(公告)日：2018-02-27
申请号：US14926348
申请日：2015-10-29
Inventor： Junhyeong Kim , Il Gyu Kim , Seung Chan Bang
IPC: H04W72/04 , H04L5/00 , H04W36/00 , H04B7/026 , H04L12/24 , H04W88/04 , H04W88/08 , H04W8/18 , H04L12/26
CPC classification number: H04L5/0035 , H04B7/026 , H04L41/0668 , H04L43/0811 , H04W8/186 , H04W36/00 , H04W88/04 , H04W88/08
Abstract: Disclosed is a method and apparatus for communication in a millimeter band communication system. In a case in which a first terminal obtains a list including members of a cooperative group in which terminals receive a service with the same beam as a first terminal's beam, the first terminal informs a second terminal, corresponding to a member of the list, of communication link failure when the failure occurs, and requests a cooperative service. After that, the first terminal receives information on the service from a base station through the second terminal.
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公开(公告)号：US09641292B2
公开(公告)日：2017-05-02
申请号：US14925539
申请日：2015-10-28
Inventor： Seung Eun Hong , Il Gyu Kim , Seung Chan Bang
IPC: H04L5/00 , H04B7/04 , H04L27/26 , H04B7/06 , H04B7/0413
CPC classification number: H04L5/0023 , H04B7/0413 , H04B7/0617 , H04L27/2626
Abstract: Disclosed are a load modulation-based beamspace MIMO transmission method and apparatus. The beamspace MIMO transmission apparatus may include a plurality of impedance loading circuits each including a plurality of imaginary impedance devices, a beamspace MIMO control unit calculating loading values of the plurality of imaginary impedance devices, corresponding to a spatial multiplexing orthogonal frequency division multiplexing (OFDM) sample, and an RF chain unit generating a first signal having a predetermined carrier frequency.
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公开(公告)号：US09144064B2
公开(公告)日：2015-09-22
申请号：US13657409
申请日：2012-10-22
Inventor： Kap Seok Chang , Il Gyu Kim , Hyeong Geun Park , Young Jo Ko , Hyo Seok Yi , Chan Bok Jeong , Young Hoon Kim , Seung Chan Bang
CPC classification number: H04W48/16 , H04B1/70735 , H04B7/2656 , H04J11/0069 , H04L7/043 , H04L27/2613 , H04L27/2655 , H04W56/00 , H04W72/042 , H04W72/0446 , H04W88/08
Abstract: A method is provided for searching for a cell in a mobile station. The method includes receiving a downlink frame including a primary synchronization signal and a secondary synchronization signal. The secondary synchronization signal contains cell identity group information and the primary synchronization signal contains cell identity information within a cell identity group. The method also includes searching for a cell using the cell identity group information in the secondary synchronization signal and the cell identity information in the primary synchronization sign.
Abstract translation: 提供了一种用于在移动台中搜索小区的方法。 该方法包括接收包括主同步信号和次同步信号的下行链路帧。 次同步信号包含小区标识组信息，并且主同步信号包含小区标识组内的小区标识信息。 该方法还包括使用次同步信号中的小区标识组信息和主同步符号中的小区标识信息来搜索小区。
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公开(公告)号：US08982911B2
公开(公告)日：2015-03-17
申请号：US13672041
申请日：2012-11-08
Inventor： Kap Seok Chang , Il Gyu Kim , Hyeong Geun Park , Young Jo Ko , Hyo Seok Yi , Moon Sik Lee , Young Hoon Kim , Seung Chan Bang
CPC classification number: H04W56/00 , H04J11/0069 , H04J11/0076 , H04L25/03866 , H04L27/2613 , H04L27/2655 , H04L27/2656 , H04L27/2657 , H04L27/2662
Abstract: The present invention relates to a method for generating a downlink frame including generating a first short sequence and a second short sequence indicating cell group information, generating a first scrambling sequence determined by the first synchronization signal, generating a second scrambling sequence determined by the first short sequence, scrambling the first short sequence with the first scrambling sequence, scrambling the second short sequence with at least the second scrambling sequence, and mapping a second synchronization signal including the scrambled first short sequence and the scrambled second short sequence in the frequency domain.
Abstract translation: 本发明涉及一种生成下行链路帧的方法，包括生成指示小区组信息的第一短序列和第二短序列，产生由第一同步信号确定的第一加扰序列，产生由第一短序列确定的第二加扰序列 用第一加扰序列加扰第一短序列，用至少第二加扰序列对第二短序列进行加扰，以及在频域中映射包括加扰的第一短序列和加扰的第二短序列的第二同步信号。
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