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公开(公告)号：US11492109B2
公开(公告)日：2022-11-08
申请号：US16403298
申请日：2019-05-03
Inventor： Kwang Jae Lim
Abstract: Disclosed is a method of determining location information of a signal source. A method of determining location information of a signal source by using an unmanned aerial vehicle according to an embodiment of the present disclosure includes determining, at a first location, first location information and first posture information of the unmanned aerial vehicle provided with a linear array antenna; determining, at the first location, a first measurement azimuth between the signal source and the linear array antenna; determining, at least one second location, at least one second location information and at least one second posture information of the unmanned aerial vehicle having the linear array antenna; determining, at the at least one second location, at least one second measurement azimuth between the signal source and the linear array antenna; and predicting the location information of the signal source using the information described above.
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公开(公告)号：US11272541B2
公开(公告)日：2022-03-08
申请号：US16537365
申请日：2019-08-09
Inventor： Eunkyung Kim , Jae Sun Cha , Chanho Yoon , Seung-Kwon Baek , Jae Joon Park , Kwang Jae Lim , Sung Cheol Chang
Abstract: Provided is a method for transmitting, by a transmitter, a first data having periodicity through a channel of an unlicensed band:
The transmitter adjusts at least one of transmission timing of the first data and clear channel assessment (CCA) timing for the channel to occupy the channel. The transmitter determines whether the channel may be occupied by performing a CCA on the channel at the CCA timing. The transmitter transmits the first data through the channel at the transmission timing of the first data, when it is determined that the channel may be occupied.-
公开(公告)号：US10448420B2
公开(公告)日：2019-10-15
申请号：US15094864
申请日：2016-04-08
Inventor： Eunkyung Kim , Chanho Yoon , Seung-Kwon Baek , Wooram Shin , Kwang Jae Lim , Young Jo Ko
Abstract: A method and an apparatus for allocating uplink resources includes transmitting an uplink grant (UL Grant) for an unlicensed component carrier (UCC) to a plurality of terminals, wherein the UL Grant for a first terminal among the plurality of terminals includes a resource allocation information in which a transmission timing of the uplink data of a second terminal among the plurality of terminals is considered.
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公开(公告)号：US09319127B2
公开(公告)日：2016-04-19
申请号：US14455399
申请日：2014-08-08
Inventor： Eunkyung Kim , Jae Sun Cha , Jae Joon Park , Hyun Lee , Kwang Jae Lim , Sung Cheol Chang
CPC classification number: H04B7/15507 , H04W36/00 , H04W88/04
Abstract: A data relay method includes receiving a relay request from a BS, and when the relay request is accepted, relaying data between the BS and at least one external terminal, or the data relay method includes determining relaying between a first terminal among a plurality of terminals, and other remaining terminals excluding the first terminal among the plurality of terminals, and relaying data between the first terminal and the other remaining terminals.
Abstract translation: 数据中继方法包括从BS接收中继请求，当接收到中继请求时，BS与至少一个外部终端之间的中继数据或数据中继方法包括：确定多个终端中的第一终端之间的中继 ，以及在多个终端之中除了第一终端之外的其他剩余终端，并且在第一终端和其他剩余终端之间中继数据。
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5.发明授权Method and apparatus for transmitting synchronization channel, and method and apparatus for receiving synchronization channel 有权用于发送同步信道的方法和装置，以及用于接收同步信道的方法和装置公开(公告)号：US09209918B2
公开(公告)日：2015-12-08
申请号：US13737942
申请日：2013-01-09
Inventor： Seokki Kim , Sung Cheol Chang , Mi Young Yun , Eunkyung Kim , Won-Ik Kim , Hyun Lee , Sung Kyung Kim , Chul Sik Yoon , Kwang Jae Lim
CPC classification number: H04J3/06 , H04B7/2656 , H04L5/0007 , H04L5/0037 , H04W56/00
Abstract: In a direct communication between terminals, a terminal transmits a synchronization channel preamble part after transmitting a synchronization channel message part including synchronization information. The terminal receives a dedicated channel including a direct communication packet after transmitting the synchronization channel preamble part. A transition time gap for switching from transmission to reception may be inserted to an end of the synchronization channel preamble part.
Abstract translation: 在终端之间的直接通信中，终端在发送包括同步信息的同步信道消息部分之后发送同步信道前导码部分。 在发送同步信道前导码部分之后，终端接收包括直接通信分组的专用信道。 用于从传输切换到接收的转换时间间隙可以被插入到同步信道前导码部分的末尾。
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Patent Agency Ranking
公开(公告)号：US11089624B2
公开(公告)日：2021-08-10
申请号：US16539411
申请日：2019-08-13
Inventor： Eunkyung Kim , Chanho Yoon , Seung-Kwon Baek , Wooram Shin , Kwang Jae Lim , Young Jo Ko
Abstract: A method and an apparatus for allocating uplink resources includes transmitting an uplink grant (UL Grant) for an unlicensed component carrier (UCC) to a plurality of terminals, wherein the UL Grant for a first terminal among the plurality of terminals includes a resource allocation information in which a transmission timing of the uplink data of a second terminal among the plurality of terminals is considered.
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公开(公告)号：US10575312B2
公开(公告)日：2020-02-25
申请号：US15827527
申请日：2017-11-30
Inventor： Hee Wook Kim , Kwang Jae Lim , Tae Chul Hong
Abstract: Disclosed is a channel assignment method of a communication system for controlling an unmanned aerial vehicle (UAV), the method including receiving assignment data and an interference analysis criterion from a spectrum authority; performing an interference analysis and selecting a control and non-payload communication (CNPC) channel based on the assignment data and the interference analysis criterion; and requesting the spectrum authority for assigning the CNPC channel.
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公开(公告)号：US10429836B2
公开(公告)日：2019-10-01
申请号：US15609213
申请日：2017-05-31
Inventor： Tae Chul Hong , Hee Wook Kim , Kwang Jae Lim
Abstract: A channel access method in an unmanned aerial vehicle (UAV) control and non-payload communication (CNPC) system is provided. The channel access method may include setting an uplink frequency and a downlink frequency to each of a ground station and an airborne radio station, and performing, by the ground station and the airborne radio station, an initial access using the uplink frequency or the downlink frequency.
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公开(公告)号：US10333738B2
公开(公告)日：2019-06-25
申请号：US15173624
申请日：2016-06-04
Inventor： Yu Ro Lee , Kwang Jae Lim , Won-Ik Kim , Taegyun Noh , Sung Cheol Chang
Abstract: A base station defines a short TTI (transmission time interval) equal to the length of one subslot as the minimum unit of a time resource for data transmission in a subframe including a plurality of subslots, determines the RS type the terminal will use for transmission, among a plurality of RS types, based on the positions of RSs (reference signals) within the short TTI, and sends information on the RS type the terminal will use for transmission to the terminal.
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10.发明授权公开(公告)号：US09749098B2
公开(公告)日：2017-08-29
申请号：US14707821
申请日：2015-05-08
Inventor： Seung-Kwon Baek , Eunkyung Kim , Kwang Jae Lim , Jae Sun Cha , Sung Cheol Chang
CPC classification number: H04L5/00 , H04L5/0058 , H04W16/32 , H04W48/12 , H04W84/042
Abstract: A method and apparatus of receiving system information of an SeNB, including configuring connection to an MeNB and receiving a RRC Connection Reconfiguration message including the system information of a cell included in a SCG controlled by the SeNB, and a method of sharing frame offset between a MCG controlled by an MeNB and an SCG controlled by an SeNB connected to the MeNB through non-ideal backhaul, including measuring system frame number (SFN) and subframe number (SN) of a cell included in the SCG and sharing the frame offset, which is determined based on the SFN and the SN, with the MeNB or the SeNB are provided.
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