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31.发明授权公开(公告)号：US11991675B2
公开(公告)日：2024-05-21
申请号：US17093836
申请日：2020-11-10
Inventor： Yu Ro Lee , Jae Woo Park , Jae Seung Lee , Jee Yon Choi , Il Gyu Kim , Seung Chan Bang
IPC: H04B7/0417 , H04B7/0452 , H04B7/06 , H04W16/28 , H04W24/10 , H04W28/02 , H04W48/16 , H04W72/0453 , H04W72/21 , H04W72/23 , H04W72/542 , H04W84/12 , H04W88/02 , H04W88/08 , H04W92/02 , H04W92/10
CPC classification number: H04W72/0453 , H04B7/0417 , H04B7/0452 , H04B7/0617 , H04B7/0626 , H04W16/28 , H04W24/10 , H04W28/0247 , H04W48/16 , H04W72/21 , H04W72/23 , H04W72/542 , H04W84/12 , H04W88/02 , H04W88/08 , H04W92/02 , H04W92/10
Abstract: Disclosed are a frame transmission method using a selective beamforming and a communication apparatus to perform the frame transmission method. The communication apparatus may determine a beamforming matrix based on classification information in which a plurality of subcarriers used for communication is classified into a plurality of frequency units, may map a long training field (LTF) sequence to the beamforming matrix, and transmit a beamforming training (BF-T) frame including the mapped LTF sequence to a plurality of stations, may receive, from the plurality of stations having receiving the BF-T frame, feedback information generated based on a reception strength of the BF-T frame, and may allocate frequency units to data frames to be transmitted to the plurality of stations based on the feedback information, and transmit the data frames using the allocated frequency units. The reception strength of the BF-T frame may be determined at each station for each frequency unit.
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公开(公告)号：US11743863B2
公开(公告)日：2023-08-29
申请号：US17838177
申请日：2022-06-11
Inventor： Jae Heung Kim , Jung Im Kim , Kyoung Seok Lee , Soo Jung Jung , Seung Chan Bang , Byung Han Ryu
CPC classification number: H04W68/025 , H04L5/0053 , H04W68/02 , H04W72/23
Abstract: Provided is a method for transmitting paging information in a cellular system. An object of the method is transmitting paging information which can improve applicability of a limited radio resource by variably and flexibly setting up and mapping a transport channel and a physical channel in order to transmit information notifying start of downlink information from a base station to a terminal in a cellular system for packet transmission. The method includes the steps of: forming a paging channel (PCH) in a transport channel corresponding to generation of paging information; setting a paging indication channel (PICH) based on the paging information and forming the paging indication channel in a radio resource of a physical layer; and allocating the paging channel to the radio resource of the physical layer.
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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：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：US09907093B2
公开(公告)日：2018-02-27
申请号：US14982305
申请日：2015-12-29
Inventor： Juho Park , Young Seog Song , Jun Hwan Lee , Eun-Young Choi , Young Jo Ko , Seung Chan Bang
CPC classification number: H04W74/0833 , H04W72/0453 , H04W72/046
Abstract: In a communications system using a plurality of beams, a terminal determines a beam to be communicated with the terminal among the plurality of beams, determines one sequence among sequences allocated to the determined beam as a beam based random access preamble, and transmits the beam based random access preamble through the determined beam. In addition, if a random access response for the beam based random access preamble is not received from a base station for a set interval, the terminal determines one sequence among sequences in a cell based random access preamble collection as a cell based random access preamble and transmits the cell based random access preamble.
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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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40.发明授权Method and apparatus for setting communication target in wireless communication system 有权在无线通信系统中设置通信目标的方法和装置公开(公告)号：US08989732B2
公开(公告)日：2015-03-24
申请号：US13752643
申请日：2013-01-29
Inventor： Tae Joong Kim , Young Hoon Kim , Byung Jae Kwak , Pyeong Jung Song , Seung Chan Bang
CPC classification number: H04W28/0215 , H04W56/002
Abstract: Provided is a method and apparatus for setting a communication target in a wireless communication system. A method of setting, by a setting device, a communication target in a wireless communication system may include: obtaining a synchronization and a characteristic of a target device by receiving a signal transmitted from the target device during a predetermined period of time; transmitting setting information to the target device based on the synchronization and the characteristic of the target device; and completing setting of the communication target by receiving setting response signal from the target device.
Abstract translation: 提供了一种用于在无线通信系统中设置通信目标的方法和装置。 通过设定装置在无线通信系统中设定通信目标的方法可以包括：通过在预定时间段内接收从目标设备发送的信号来获得目标设备的同步和特性; 基于目标设备的同步和特性向设备发送设置信息; 以及通过从目标设备接收设置响应信号来完成通信目标的设置。
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