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公开(公告)号：US11870546B2
公开(公告)日：2024-01-09
申请号：US17892024
申请日：2022-08-19
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
IPC: H04B7/26 , H04J11/00 , H04L27/26 , H04W72/23 , H04L7/04 , H04W72/0446 , H04W48/16 , H04W56/00 , H04B1/7073 , H04W88/08
CPC classification number: H04B7/2656 , H04J11/0069 , H04L7/043 , H04L27/2613 , H04L27/2655 , H04W48/16 , H04W56/00 , H04W72/0446 , H04W72/23 , H04B1/70735 , H04W88/08
Abstract: The present application relates to a method of generating a downlink frame. The method of generating the downlink frame includes: generating a first short sequence and a second short sequence indicating cell group information; generating a first scrambling sequence and a second scrambling sequence determined by the primary synchronization signal; generating a third scrambling sequence determined by the first short sequence and a fourth scrambling sequence determined by the second short sequence; scrambling the short sequences with the respective scrambling sequences; and mapping the secondary synchronization signal that includes the first short sequence scrambled with the first scrambling sequence, the second short sequence scrambled with the second scrambling sequence and the third scrambling sequence, the second short sequence scrambled with the first scrambling sequence and the first short sequence scrambled by the second scrambling sequence and the fourth scrambling sequence to a frequency domain.
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公开(公告)号：US10383041B2
公开(公告)日：2019-08-13
申请号：US15890114
申请日：2018-02-06
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
IPC: H04W48/16 , H04B7/26 , H04J11/00 , H04L7/04 , H04L27/26 , H04W72/04 , H04W56/00 , H04B1/7073 , H04W88/08
Abstract: The present application relates to a method of generating a downlink frame. The method of generating the downlink frame includes: generating a first short sequence and a second short sequence indicating cell group information; generating a first scrambling sequence and a second scrambling sequence determined by the primary synchronization signal; generating a third scrambling sequence determined by the first short sequence and a fourth scrambling sequence determined by the second short sequence; scrambling the short sequences with the respective scrambling sequences; and mapping the secondary synchronization signal that includes the first short sequence scrambled with the first scrambling sequence, the second short sequence scrambled with the second scrambling sequence and the third scrambling sequence, the second short sequence scrambled with the first scrambling sequence and the first short sequence scrambled by the second scrambling sequence and the fourth scrambling sequence to a frequency domain.
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公开(公告)号：US10096907B2
公开(公告)日：2018-10-09
申请号：US15292897
申请日：2016-10-13
Inventor： Seung Eun Hong , Moon Sik Lee , Young Seog Song , Jun Hwan Lee , Eun Young Choi , Il Gyu Kim , Seung Chan Bang
Abstract: There are provided an antenna apparatus and a method of handover using the antenna apparatus. The antenna apparatus may comprise a plurality of antenna elements forming a plurality of beams in a predetermined service area. The plurality of antenna elements are arranged in a plurality of rows, and a number of antenna elements included in an uppermost row of the plurality of rows is smaller than a number of antenna elements included in a downmost row of the plurality of rows, and differences between center angles of beams formed by the antenna elements included in the downmost row are larger than differences between center angles of beams formed by the antenna elements included in the uppermost row.
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公开(公告)号：US09806778B2
公开(公告)日：2017-10-31
申请号：US14937960
申请日：2015-11-11
Inventor： Seok Ho Won , Seyoung Cho , Suchang Chae , Il Gyu Kim , Seung Chan Bang
IPC: H04L27/00 , H01Q3/00 , H04B7/04 , H04B7/0417 , H04B7/06
CPC classification number: H04B7/046 , H04B7/0417 , H04B7/0669
Abstract: A transmitter generates a first precoding vector for a first virtual antenna port among a plurality of virtual antenna ports using a first sequence having a constant magnitude and a discrete Fourier transform (DFT) vector sequence in a time domain and a frequency domain. The transmitter generates a plurality of second precoding vectors for the remaining virtual antenna port, except for the first virtual antenna port of the plurality of virtual antenna ports by circular shifting the first precoding vector. The transmitter maps a plurality of first data streams for the plurality of virtual antenna ports to a plurality of physical antenna ports using the first precoding vector and the plurality of second precoding vectors.
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公开(公告)号：US09730238B2
公开(公告)日：2017-08-08
申请号：US14734733
申请日：2015-06-09
Inventor： Jee Yon Choi , Jae Woo Park , Yu Ro Lee , Jae Seung Lee , Il Gyu Kim , Seung Chan Bang
Abstract: Provided is a data frame transmission method of a communication apparatus, the method including determining whether a transmission allowance condition of a data frame of the communication apparatus is satisfied when another communication apparatus occupies a channel, verifying an end time of another data frame transmitted by the other communication apparatus based on a result of the determining, and transmitting the data frame based on the verified end time.
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Patent Agency Ranking
6.发明授权Apparatus and method for extending coverage in wireless communication system 有权用于扩展无线通信系统覆盖范围的装置和方法公开(公告)号：US09338660B2
公开(公告)日：2016-05-10
申请号：US13890188
申请日：2013-05-08
Inventor： Min Ho Cheong , Hee Jung Yu , Sok Kyu Lee , Seung Chan Bang
Abstract: The present invention relates to an apparatus and method for coverage expansion in a wireless communication system. This disclosure discloses a wireless device operating in a wireless communication system, the wireless device comprising a transceiver transmitting and receiving a wireless signal and a processor operating in operative connection with the transceiver, wherein the processor sets power boosting adjustable in an RF capability range within an SIG field.
Abstract translation: 本发明涉及无线通信系统中覆盖扩展的装置和方法。 本公开公开了一种在无线通信系统中操作的无线设备，所述无线设备包括发射和接收无线信号的收发器以及与所述收发器操作连接的操作的处理器，其中所述处理器设置在RF能力范围内可调节的功率提升 SIG字段。
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7.发明授权Method of receiving downlink data, and machine type communication device using the method 有权接收下行数据的方法，以及采用该方法的机型通信装置公开(公告)号：US09001946B2
公开(公告)日：2015-04-07
申请号：US13904604
申请日：2013-05-29
Inventor： Jun Hwan Lee , Hee Sang Chung , Il Gyu Kim , Seung Chan Bang
CPC classification number: H04B7/0808 , H04B17/318 , H04W4/70
Abstract: Provided are a method of receiving downlink data and a machine type communication (MTC) device using the same. The MTC device according to the present invention which has a plurality of antennas includes a reception signal processing module that receives a downlink reference signal for each antenna from a base station, estimates reception signal quality with respect to the downlink reference signal for each antenna, and selects the antenna to receive a downlink signal in accordance with the reception signal quality with respect to each antenna.
Abstract translation: 提供一种接收下行链路数据的方法和使用其的机器类型通信（MTC）设备。 根据本发明的具有多个天线的MTC设备包括接收信号处理模块，其从基站接收每个天线的下行链路参考信号，针对每个天线估计相对于下行链路参考信号的接收信号质量，以及 根据每个天线的接收信号质量选择天线接收下行链路信号。
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公开(公告)号：US12284620B2
公开(公告)日：2025-04-22
申请号：US17719398
申请日：2022-04-13
Inventor： Il Gyu Kim , Hyeong Geun Park , Young Jo Ko , Kapseok Chang , Hyo Seok Yi , Young Hoon Kim , Seung Chan Bang
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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公开(公告)号：US11363547B2
公开(公告)日：2022-06-14
申请号：US16114224
申请日：2018-08-28
Inventor： Il Gyu Kim , Hyeong Geun Park , Young Jo Ko , Kapseok Chang , Hyo Seok Yi , Young Hoon Kim , Seung Chan Bang
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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公开(公告)号：US11330540B2
公开(公告)日：2022-05-10
申请号：US16114224
申请日：2018-08-28
Inventor： Il Gyu Kim , Hyeong Geun Park , Young Jo Ko , Kapseok Chang , Hyo Seok Yi , Young Hoon Kim , Seung Chan Bang
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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