-
公开(公告)号：US20190312632A1
公开(公告)日：2019-10-10
申请号：US16450943
申请日：2019-06-24
Inventor： Kap Seok CHANG , Hyoung Jin KWON , Sung Geun JIN , Yong Sun KIM , Seung Eun HONG , Woo Yong LEE , Hyun Kyu CHUNG
Abstract: Provided is an apparatus and method for wideband short-range wireless communication using a directional antenna in a millimeter wave band, and the method for wideband short-range wireless communication according to an embodiment may determine a first time interval and a second time interval for a cooperated data frame transfer based on a packet transmission time at each transmission from a source node to a destination node, transmit a frame to a relay node through an antenna pattern directed towards the relay node at a start point of the first time interval, and transmit the frame to the destination node through an antenna pattern directed towards the destination node after a predetermined period of time from a start point of the second time interval.
-
公开(公告)号：US20150139069A1
公开(公告)日：2015-05-21
申请号：US14586901
申请日：2014-12-30
Inventor： Kap Seok CHANG , Sung Geun JIN , Hyun Kyu CHUNG , Woo Yong LEE , Hyoung Jin KWON
CPC classification number: H04W56/005 , H04B7/15592 , H04W56/00 , H04W56/001 , H04W56/002 , H04W56/0045
Abstract: A source station for synchronization of transmission and reception of data in a cooperative communication system includes a first receiver to receive, from a destination station, a first request frame including information regarding a first point in time when a first response frame is to be transmitted; a first transmitter to transmit the first response frame to the destination station, at the first point in time; a second transmitter to transmit, to a relay station, a second request frame including information regarding a second point in time when a second response frame is to be transmitted; a second receiver to receive the second response frame transmitted by the relay station at the second point in time; and a time estimator to estimate a first propagation delay time between the source station and the relay station, based on a time in which the second response frame is received.
Abstract translation: 用于同步协作通信系统中的数据的发送和接收的源站包括：第一接收机，用于从目的地站接收第一请求帧，该第一请求帧包括关于要发送第一响应帧的第一时间点的信息; 在第一时间点将第一响应帧发送到目的地站的第一发射机; 第二发送器，用于向中继站发送包括关于要发送第二响应帧的第二时间点的信息的第二请求帧; 第二接收器，用于接收由所述中继站在所述第二时间点发送的所述第二响应帧; 以及时间估计器，用于基于接收到第二响应帧的时间来估计源站和中继站之间的第一传播延迟时间。
-
公开(公告)号：US20250097889A1
公开(公告)日：2025-03-20
申请号：US18961756
申请日：2024-11-27
Inventor： Kap Seok CHANG , Seung Chan BANG , Young Jo KO , Il Gyu KIM
IPC: H04W64/00
Abstract: A beam fingerprint-based positioning method, performed by a communication node located in a target space, may include: performing measurements on positioning signals transmitted from at least one reference node through a plurality of directional beams in a beam sweeping scheme; transmitting a result of the measurements to a central node; and receiving information on a position of the communication node from the central node.
-
公开(公告)号：US20240243948A1
公开(公告)日：2024-07-18
申请号：US18400247
申请日：2023-12-29
Inventor： Woo Ram SHIN , Kyeong Pyo KIM , Young Jo KO , Kap Seok CHANG
CPC classification number: H04L25/0228 , H04L5/0012 , H04L27/26532
Abstract: A method of a receiver, which relates to a Doppler frequency compensation technique in a communication system, may comprise: performing a demodulation process so that a fractional part of a Doppler shift of a received signal is compensated; and de-spreading the received signal for which the fractional part of the Doppler shift compensated from a first two-dimensional domain to a second two-dimensional domain.
-
Patent Agency Ranking
公开(公告)号：US20240188143A1
公开(公告)日：2024-06-06
申请号：US18493411
申请日：2023-10-24
Inventor： Yong Sun KIM , Kap Seok CHANG , Young Jo KO , Cheul Soon KIM , Sung Hyun MOON , Jung Hoon LEE
IPC: H04W74/0833 , H04W74/00
CPC classification number: H04W74/0833 , H04W74/006
Abstract: A method of a UE may comprise: receiving a first SSB search request message including SSB search options through a first TRP in a connected state with a BS through the first TRP connected below the BS; searching for a plurality of SSBs based on the SSB search options; and in response to presence of a beam transmitting at least one SSB having a received signal strength equal to or greater than a predetermined threshold as a result of the searching, transmitting, to the BS and through the first TRP, a first SSB search result report message including information on the at least one SSB having the received signal strength equal to or greater than the predetermined threshold.
-
公开(公告)号：US20220394653A1
公开(公告)日：2022-12-08
申请号：US17524824
申请日：2021-11-12
Inventor： Kap Seok CHANG , Seung Chan BANG , Young Jo KO , Il Gyu KIM
IPC: H04W64/00
Abstract: A beam fingerprint-based positioning method, performed by a communication node located in a target space, may include: performing measurements on positioning signals transmitted from at least one reference node through a plurality of directional beams in a beam sweeping scheme; transmitting a result of the measurements to a central node; and receiving information on a position of the communication node from the central node.
-
公开(公告)号：US20220329376A1
公开(公告)日：2022-10-13
申请号：US17500402
申请日：2021-10-13
Inventor： Kyeong Pyo KIM , Woo Ram SHIN , Young Jo KO , Kap Seok CHANG
Abstract: An operation method of a transmitter in a communication system may comprise: configuring a first reference signal region for transmission of a first reference signal in the delay-Doppler domain; arranging the first reference signal having a sequence form in a specific region within the first reference signal region; transforming a delay-Doppler domain signal including the first reference signal into a time domain signal; and transmitting the time domain signal to a receiver.
-
公开(公告)号：US20190357127A1
公开(公告)日：2019-11-21
申请号：US16530994
申请日：2019-08-02
Inventor： Kap Seok CHANG , Il Gyu KIM , Hyeong Geun PARK , Young Jo KO , Hyo Seok Yl , Chan Bok JEONG , Young Hoon KIM , Seung Chan BANG
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.
-
公开(公告)号：US20160066260A1
公开(公告)日：2016-03-03
申请号：US14938109
申请日：2015-11-11
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: 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.
-
-
-
-
-
-
-
-
Search Results
29
records
(took 0.022 seconds)
