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公开(公告)号：US20200015165A1
公开(公告)日：2020-01-09
申请号：US16506831
申请日：2019-07-09
Inventor： Sung Hyun HWANG , Kyu Min KANG , Sung Jin YOO , Su Na CHOI , Jae Cheol PARK , Yong Ho KIM
Abstract: Disclosed are a low-power communication method and a low-power communication apparatus in a communication system. A low-power station may comprise a processor; a memory storing at least one instruction executable by the processor; a receiver for receiving a WUR PPDU according to the at least one instruction; and a transceiver for transmitting and receiving a legacy PPDU according to the at least one instruction, and the at least one instruction may be configured to cause the receiver to receive a WUR wake-up frame from the access point in an on-duration within a WUR duty cycle period; when the WUR wake-up frame is received, cause the processor to transmit a first signal requesting wake-up to the transceiver; and when the first signal is received, cause the transceiver to transition from a sleep state to a wake-up state at a TWT configured between the access point and the low-power station.
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公开(公告)号：US20180317256A1
公开(公告)日：2018-11-01
申请号：US15771490
申请日：2017-02-01
Inventor： Jung Sun UM , Hoi Yoon JUNG , Seung Keun PARK , Sung Jin YOO
Abstract: Disclosed is a method for communicating in a network supporting licensed and unlicensed bands. A terminal operation method comprises the steps of: detecting a control channel of a subframe #n transmitted from a base station; obtaining, from the control channel, a DCI for an uplink grant; executing channel sensing on the basis of channel connection-related information included in the DCI; and transmitting, to the base station, a subframe #(n+1) if the result of executing channel sensing is an idle state. Thus, the performance of the communication network may be improved.
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公开(公告)号：US20180317255A1
公开(公告)日：2018-11-01
申请号：US15770838
申请日：2017-02-03
Inventor： Jung Sun UM , Hoi Yoon JUNG , Seung Keun PARK , Sung Jin YOO
Abstract: Disclosed is a method for scheduling an uplink transmission in a communication network. A terminal operation method comprises the steps of: detecting a control channel of a subframe #n transmitted from a base station; receiving an uplink grant from the control channel; and transmitting, to the base station, a plurality of subframes scheduled by the uplink grant. Thus, the performance of the communication network may be improved.
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公开(公告)号：US20170230129A1
公开(公告)日：2017-08-10
申请号：US15217884
申请日：2016-07-22
Inventor： Sung Jin YOO , Kyu Min KANG , Seung Keun PARK , Jae Cheol PARK , Jung Sun UM , Hoi Yoon JUNG
Abstract: Provided is a PIM detection apparatus including: a tone signal input unit configured to apply a tone signal having a first frequency characteristic to a test target apparatus; a sequence signal input unit configured to apply a sequence signal having a second frequency characteristic to the test target apparatus; a PIM detector configured to receive a Passive Intermodulation (PIM) signal from the test target apparatus, and to detect a delay time and a size of the PIM signal based on the sequence signal; and a PIM position determiner configured to determine a PIM occurrence position by using the delay time and the size of the PIM signal.
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25.发明申请BASE STATION, SIGNAL TRANSMITTING METHOD OF THE SAME, COMMUNICATION SYSTEM COMPRISING THEREOF 审中-公开基站，信号发送方法，包括它的通信系统公开(公告)号：US20160234763A1
公开(公告)日：2016-08-11
申请号：US15017361
申请日：2016-02-05
Inventor： Jung Sun UM , Hoi Yoon JUNG , Seung Keun PARK , Sung Jin YOO
CPC classification number: H04W48/16 , H04L5/0007 , H04L5/005 , H04L5/14 , H04L27/2601 , H04W24/02 , H04W48/20 , H04W72/042
Abstract: An exemplary embodiment of the present information discloses a base station which transmits a discovery reference signal (DRS) in an unlicensed band, including: a transmission control unit which sets different timings to transmit the DRS for each of a plurality of channels; and a communication unit which transmits the DRS to the outside through the plurality of channels based on the set timing.
Abstract translation: 本信息的示例性实施例公开了一种在未许可频带中发送发现参考信号（DRS）的基站，包括：传输控制单元，其针对多个信道中的每一个设置不同的定时以发送DRS; 以及基于所设定的定时，通过多个信道将DRS发送到外部的通信单元。
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Patent Agency Ranking
26.发明申请DATA FRAME STRUCTURE AND OPERATION METHOD FOR SHARING UNLICENSED SPECTRUM IN WIRELESS COMMUNICATION SYSTEM AND APPARATUS THEREOF 有权用于在无线通信系统中共享未经许可的频谱的数据帧结构和操作方法及其装置公开(公告)号：US20150201431A1
公开(公告)日：2015-07-16
申请号：US14597482
申请日：2015-01-15
Inventor： Jung Sun UM , Hoi Yoon JUNG , Byung Jang JEONG , Sung Jin YOO , Jae Ick CHOI
CPC classification number: H04W84/12 , H04B7/2656 , H04L5/0048 , H04L5/14 , H04W16/14 , H04W56/001
Abstract: Provided are a data frame structure of a wireless communication system, which follows a sharing protocol which may be operated to coexist with a system that operates in an unlicensed spectrum, such as a WiFi system, and the like in the wireless communication system using a licensed spectrum such as an LTE system and an operation method of the system, and a terminal and a device of a base station for the operation.
Abstract translation: 提供了一种无线通信系统的数据帧结构，其遵循共享协议，该共享协议可以被操作以与在无线通信系统中使用许可的无线通信系统中的诸如WiFi系统之类的非许可频谱中的系统共存 频谱如LTE系统和系统的操作方法，以及用于操作的基站的终端和设备。
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公开(公告)号：US20230021567A1
公开(公告)日：2023-01-26
申请号：US17866727
申请日：2022-07-18
Inventor： Sung Jin YOO , Hyung Ju KIM , Myung Sun SONG , Byung Jang JEONG
IPC: G01S7/02 , G01S13/931
Abstract: Disclosed is a radar detection assistant apparatus for increasing detection accuracy when detecting an object using a radar detection device. The radar detection assistant apparatus includes a radar signal receiver for adjusting a radar candidate signal received through a reception antenna to a predetermined magnitude and filtering out a signal other than the radar candidate signal, a radar signal analyzer for receiving the radar candidate signal from the radar signal receiver and determining whether or not the radar candidate signal is a preset radar signal, a radar signal production controller for generating a control signal for an assistant apparatus production signal or an assistant apparatus reproduction signal on the basis of at least one of pieces of information on a type, a bandwidth, and a period of the radar candidate signal received from the radar signal analyzer, and a radar signal producer.
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公开(公告)号：US20200064461A1
公开(公告)日：2020-02-27
申请号：US16550086
申请日：2019-08-23
Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE , PUKYONG NATIONAL UNIVERSITY INDUSTRY-UNIVERSITY COOPERATION FOUNDATION
Inventor： Sung Hyun HWANG , Woo Jin BYUN , Sung Jin YOO , Jae Hyun PARK
Abstract: An operation method performed by an apparatus for detecting multiple targets may comprise transmitting first signals using Mt transmit antennas included in the apparatus; receiving the first signals reflected by the multiple targets through Mr receive antennas included in the apparatus; generating a first function for estimating a velocity and an azimuth of each of the multiple targets using the first signals and the reflected first signals; estimating a velocity and an azimuth that maximize a result of the first function as a velocity and an azimuth of a first target closest to the apparatus among the multiple targets; generating a second function by cancelling interference caused by the first target from the first function; and estimating a velocity and an azimuth that maximize a result of the second function as a velocity and an azimuth of a second target among the multiple targets.
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公开(公告)号：US20180110090A1
公开(公告)日：2018-04-19
申请号：US15562005
申请日：2016-01-28
Inventor： Jung Sun UM , Kyu Min KANG , Seung Keun PARK , Jae Cheol PARK , Sung Jin YOO , Dong Hun LEE , Hoi Yoon JUNG , Su Na CHOI , Sung Hyun HWANG
Abstract: The present invention relates to a device and method for allocating a coexistence resource in an unlicensed band. The device according to the present invention comprises: a frame configuration unit for configuring a subframe in which data and a reference signal for a channel in an unlicensed band are allocated, and allocating a part of the symbols of the subframe as a coexistence resource; a signal detection unit for detecting a signal of another LTE system or Wi-Fi system during a transmission idle period where the coexistence resource is allocated; and a transmission processing unit which, when the signal of another system is detected during the transmission idle period, does not occupy a resource for the next subframe, and when the occupation of the coexistence resource by the another system has ended, occupies the resource for the next subframe.
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30.发明申请公开(公告)号：US20180092128A1
公开(公告)日：2018-03-29
申请号：US15565141
申请日：2016-03-15
Inventor： Jung Sun UM , Sung Jin YOO , Hoi Yoon JUNG , Seung Keun PARK
CPC classification number: H04W74/0825 , H04W16/14 , H04W72/0406 , H04W72/0446 , H04W72/0453 , H04W72/1289 , H04W74/006 , H04W74/0808
Abstract: The present invention relates to a method for transmitting uplink data in a spectrum sharing wireless communication system wherein, in order to enhance uplink transmission efficiency in an LTE-U service, clear channel assessment (CCA) is performed on a user terminal so as to consider the hidden node problem, and channel occupation based on an uplink signal of another terminal is considered, wherein applied are: a method for generating and transmitting a random backoff counter value at a base station so that all terminals can equally use a channel connection parameter needed for transmitting an uplink subframe in an unlicensed band; and a downlink controlling method for scheduling an uplink multi-subframe.
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