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公开(公告)号：US20130176935A1
公开(公告)日：2013-07-11
申请号：US13737941
申请日：2013-01-09
Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE , Industry-Academic Cooperatioin Foundation, Chosun University
Inventor： Won-Ik Kim , Eunkyung Kim , Sung Kyung Kim , Sung Cheol Chang , Jae Sun Cha , Mi Young Yun , Seokki Kim , Hyun Lee , Chul Sik Yoon , Kwang Jae Lim , Seokjoo Shin
IPC: H04B7/14
CPC classification number: H04B7/14 , H04W36/0055 , H04W88/04
Abstract: A communication method of a terminal that can operate in a relay mode or a base station mode is provided. When the terminal, having received a service from a first base station, detects that a service connection to the first base station is unavailable, the terminal searches for a second base station, which is an available neighboring base station. The terminal transmits a ranging request message including a base station identifier of the first base station to the second base station.
Abstract translation: 提供了可以在中继模式或基站模式下操作的终端的通信方法。 当已经从第一基站接收到服务的终端检测到与第一基站的业务连接不可用时，终端搜索作为可用的相邻基站的第二基站。 终端向第二基站发送包括第一基站的基站标识符的测距请求消息。
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公开(公告)号：US12114351B2
公开(公告)日：2024-10-08
申请号：US18159448
申请日：2023-01-25
Inventor： Cheul Soon Kim , Jae Heung Kim , Sung Hyun Moon , Jung Hoon Lee , Sung Cheol Chang
IPC: H04W74/00 , H04W24/10 , H04W72/1268 , H04W72/23 , H04W74/0833
CPC classification number: H04W74/008 , H04W24/10 , H04W72/1268 , H04W72/23 , H04W74/0833
Abstract: An operation method of a terminal in a communication system may comprise receiving first random access (RA) configuration information and second RA configuration information from a base station; transmitting a Msg1 to the base station based on the second RA configuration information; receiving a Msg2, which is a response to the Msg1, from the base station; and repeatedly transmitting a Msg3 K times to the base station.
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公开(公告)号：US11678284B2
公开(公告)日：2023-06-13
申请号：US17232344
申请日：2021-04-16
Inventor： Cheul Soon Kim , Jae Heung Kim , Sung Hyun Moon , Jung Hoon Lee , Sung Cheol Chang
IPC: H04W56/00 , H04W80/02 , H04W72/0446 , H04W72/23
CPC classification number: H04W56/0015 , H04W56/005 , H04W56/009 , H04W72/0446 , H04W72/23 , H04W80/02
Abstract: An operation method of a first terminal, for synchronized operations according to time-sensitive networking, may comprise: receiving information on a reference time from a base station; obtaining an offset of the first terminal with respect to the reference time or information for deriving the offset, and deriving the offset from the information for deriving the offset; determining a timing at which uplink transmission is performed by reflecting the offset to the reference time; and performing the uplink transmission at the determined timing.
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44.发明授权公开(公告)号：US11206592B2
公开(公告)日：2021-12-21
申请号：US16848383
申请日：2020-04-14
Inventor： Hyun Seo Park , Yun Joo Kim , Eunkyung Kim , Tae Joong Kim , An Seok Lee , Yu Ro Lee , Sung Cheol Chang
Abstract: An operation method of a terminal performing handover in a mobile communication system may comprise transmitting packet data convergence protocol (PDCP) downlink reception status information of the terminal and information on a target base station to a source base station; receiving downlink data from a user plane function (UPF) via the source base station based on a first tunnel configured between the source base station and the UPF; receiving downlink data from the UPF via the target base station based on a second tunnel configured by the UPF between the target base station and the UPF by using the PDCP downlink reception status information and the information on the target base station, which are transferred from the source base station; and discarding duplicated-received protocol data units (PDUs) from the source base station and the target base station, and reordering remaining PDUs.
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45.发明授权公开(公告)号：US10419173B2
公开(公告)日：2019-09-17
申请号：US15360442
申请日：2016-11-23
Inventor： Yu Ro Lee , Kwang Jae Lim , Sung Cheol Chang
Abstract: Disclosed herein are a method and an apparatus for transmitting an uplink signal. The method for transmitting an uplink signal includes: transmitting an uplink data in at least one symbol included in a short transmit time interval (sTTI) including 7 symbols or less; and transmitting a demodulation reference signal (DMRS) for the uplink data through an even-numbered subcarrier or an odd-numbered subcarrier in one symbol in which the uplink data is not transmitted, among the symbols included in the sTTI.
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Patent Agency Ranking
公开(公告)号：US10178695B2
公开(公告)日：2019-01-08
申请号：US14514122
申请日：2014-10-14
Inventor： Hyung Jin Kim , Seokki Kim , Sung Cheol Chang , Hyunsu Kim , Jimin Bae , Jihoon Choi
Abstract: A communication method in a peer aware communication system and an apparatus for transmitting/receiving using the communication method are provided. A block signal for informing of channel occupation is generated and then is transmitted through an interval in which a message signal including a preamble signal is not transmitted. A subcarrier for the block signal is different from a subcarrier for the preamble signal.
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公开(公告)号：US10064110B2
公开(公告)日：2018-08-28
申请号：US15343942
申请日：2016-11-04
Inventor： Won-Ik Kim , Seokki Kim , Taegyun Noh , Yu Ro Lee , Kwang Jae Lim , Sung Cheol Chang , Soojung Jung , Seungkwon Cho
CPC classification number: H04W36/0077 , H04L5/0055 , H04L69/324 , H04W74/006 , H04W74/0833
Abstract: A terminal executes a random access procedure with a target base station depending on a pre-random access channel (pre-RACH) command in a handover preparation step executed between a source base station currently accessed by the terminal and the target base station when the terminal receives the pre-RACH command from the source base station through layer2 (L2) signaling in the handover preparation step.
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48.发明授权Cooperation multi-input multi-output transmitting/receiving method and terminal for supporting the same 有权合作多输入多输出发送/接收方式和终端支持相同公开(公告)号：US09525467B2
公开(公告)日：2016-12-20
申请号：US14452579
申请日：2014-08-06
Inventor： Seokki Kim , Sung Cheol Chang , Seungkwon Cho , Soojung Jung , Hyung Jin Kim , Hyun Lee , DongSeung Kwon
CPC classification number: H04B7/0413 , H04B7/026 , H04B7/15592
Abstract: Disclosed herein are a cooperation MIMO transmitting/receiving method and a terminal for supporting the same. A master terminal forms a slave terminal and a cluster performing cooperation communication. The master terminal transmits some data of data to be transmitted to a slave terminal and shares the some data with the slave terminal, and the slave terminal transparently transmits data transmitted from the master terminal to a target node.
Abstract translation: 这里公开了一种协作MIMO发送/接收方法和用于支持该发送/接收方法的终端。 主终端形成从终端和执行协作通信的集群。 主终端将要发送的数据的一些数据发送到从终端，并与从终端共享一些数据，从属终端透明地将从主终端发送的数据发送到目标节点。
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公开(公告)号：US09485797B2
公开(公告)日：2016-11-01
申请号：US14309354
申请日：2014-06-19
Inventor： Hyung Jin Kim , Seungkwon Cho , Soojung Jung , Seokki Kim , Hyun Lee , Sung Cheol Chang
CPC classification number: H04W76/023 , H04W8/00 , H04W8/005 , H04W52/02 , H04W56/002 , H04W72/12 , H04W76/14 , H04W92/18
Abstract: A D2D direct communication method is provided. The device sets at least one frame among a plurality of frames included in a superframe to a frame type 0 which is sectionized into a synchronization region for performing a synchronization procedure, a discovery region for discovering devices, a peering region for a connection, and a data region for scheduling of resources and data transmission. The device sets remaining frames among the plurality of frames to a frame type 1 which is sectionized into the synchronization region and the data region.
Abstract translation: 提供D2D直接通信方式。 设备将包括在超帧中的多个帧中的至少一个帧设置为帧类型0，帧类型0被划分为用于执行同步过程的同步区域，用于发现设备的发现区域，用于连接的对等区域，以及 数据区用于资源调度和数据传输。 该设备将多个帧中的剩余帧设置为被分成同步区域和数据区域的帧类型1。
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公开(公告)号：US09276693B2
公开(公告)日：2016-03-01
申请号：US14514182
申请日：2014-10-14
Inventor： Hyung Jin Kim , Seokki Kim , Soojung Jung , Seungkwon Cho , Sung Cheol Chang , DongSeung Kwon
IPC: H04B1/7156 , H04J13/00 , H04J11/00
CPC classification number: H04J13/0062 , H04J11/0069
Abstract: A synchronization signal transmitting apparatus generates a plurality of different primary synchronization signals that are transmitted in an ultra frame unit within one super ultra frame and generates one secondary synchronization signal that is transmitted in a frame unit within one super ultra frame.
Abstract translation: 同步信号发送装置生成以超超帧为单位的超帧单位发送的多个不同的主同步信号，并生成一个超超帧内以帧为单位发送的副同步信号。
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