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11.发明申请公开(公告)号：US20140211781A1
公开(公告)日：2014-07-31
申请号：US14165017
申请日：2014-01-27
Inventor： Hyung Jin KIM , Chanho YOON , Soojung JUNG , Sung Kyung KIM , Seungkwon CHO , Sung Cheol CHANG , DongSeung KWON
IPC: H04W56/00
CPC classification number: H04W56/0025 , H04W4/70 , H04W56/002
Abstract: A synchronization method by a device is provided in a device-to-device direct communication. The device receives synchronization signals from a plurality of other devices at a current frame, and estimates a synchronization time at a next frame based on the synchronization signals received from the other devices.
Abstract translation: 在设备到设备的直接通信中提供了设备的同步方法。 设备在当前帧从多个其他设备接收同步信号，并且基于从其他设备接收到的同步信号来估计下一帧的同步时间。
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公开(公告)号：US20140071916A1
公开(公告)日：2014-03-13
申请号：US14022797
申请日：2013-09-10
Inventor： Chanho YOON , Hyung Jin KIM , Seungkwon CHO , Sung Kyung KIM , Soojung JUNG , Sung Cheol CHANG
IPC: H04W8/00
CPC classification number: H04W8/005 , H04L5/0053 , H04L27/2602
Abstract: A device transmits a discovery signal including identification information of the device in an empty discovery slot among a plurality of discovery slots of a discovery interval. The discovery signal includes two orthogonal frequency division multiplexing (OFDM) symbols. One of the two orthogonal frequency division multiplexing (OFDM) symbols includes at least one tone. The identification information of the device is displayed by a position of a subcarrier corresponding to the at least one tone.
Abstract translation: 设备在发现间隔的多个发现时隙中的空发现时隙中发送包括设备的标识信息的发现信号。 发现信号包括两个正交频分复用（OFDM）符号。 两个正交频分复用（OFDM）符号之一包括至少一个音调。 通过与至少一个音调对应的副载波的位置来显示设备的识别信息。
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公开(公告)号：US20140016531A1
公开(公告)日：2014-01-16
申请号：US13937803
申请日：2013-07-09
Inventor： Mi Young YUN , Chul Sik YOON , Hyun LEE , Seokki KIM , Won-Ik KIM , Sung Kyung KIM , Sung Cheol CHANG
IPC: H04W76/00
CPC classification number: H04W76/002 , H04W76/14 , H04W76/40
Abstract: Upon receiving a multicast packet from a base station, a forwarding terminal connected to the base station establishes a multicast connection with at least one direct communication terminal having a direct communication group identifier mapped to a multicast IP address of the multicast packet, and transmits the multicast packet to the at least one direct communication terminal, thereby providing multicast services to a direct communication terminal not connected to the base station.
Abstract translation: 在从基站接收到多播分组时，连接到基站的转发终端与至少一个具有映射到组播分组的组播IP地址的直接通信组标识的直接通信终端建立组播连接，并发送组播 分组到所述至少一个直接通信终端，从而向未连接到所述基站的直接通信终端提供多播服务。
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公开(公告)号：US20130294330A1
公开(公告)日：2013-11-07
申请号：US13874936
申请日：2013-05-01
Inventor： Won-Ik KIM , Sung Kyung KIM , Seokki KIM , Mi Young YUN , Hyun LEE , Chul Sik YOON , Sung Cheol CHANG
IPC: H04W36/00
CPC classification number: H04W36/0005 , H04W36/00 , H04W36/08 , H04W84/047
Abstract: A mobile relay station (RS) and a handover method thereof are provided. When it is determined that a mobile RS performs handover from a superordinate base station (BS) to a target BS, information indicating admission of handover is received from the superordinate BS. The mobile RS transmits a service unavailability section to a subordinate terminal, whereby the subordinate terminal is prevented from performing handover to a different BS or a different RS.
Abstract translation: 提供了一种移动中继站（RS）及其切换方法。 当确定移动RS执行从上级基站（BS）到目标BS的切换时，从上级BS接收到指示接纳切换的信息。 移动RS将服务不可用部分发送到下级终端，由此防止下级终端对不同的BS或不同的RS进行切换。
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公开(公告)号：US20240196291A1
公开(公告)日：2024-06-13
申请号：US18537383
申请日：2023-12-12
Inventor： Sung Cheol CHANG
CPC classification number: H04W36/08 , H04W36/0061
Abstract: A handover method of a terminal may comprise: performing a procedure to search for neighbor TRPs including a target TRP; transmitting a neighbor TRP information report message including information on searched neighbor TRPs to a current serving TRP; receiving, from a DU to which the terminal is connected and through the current serving TRP, a command indicating TRP switching for switching a serving TRP of the terminal from the current serving TRP to the target TRP; and performing an access procedure to the target TRP according to the command indicating the TRP switching, wherein the TRP switching is determined based on the neighbor TRP information report message.
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Patent Agency Ranking
16.发明公开公开(公告)号：US20240107441A1
公开(公告)日：2024-03-28
申请号：US18475154
申请日：2023-09-26
Inventor： Hyun Seo PARK , Yong Jin KWON , Yun Joo KIM , Han Jun PARK , Jung Bo SON , An Seok LEE , Yu Ro LEE , Heesoo LEE , Sung Cheol CHANG
CPC classification number: H04W48/20 , H04W52/0206 , H04W76/20
Abstract: A method of a terminal may comprise: receiving a first message including state information of a base station from the base station; identifying preliminary inactive state information included in the first message when the state information of the base station indicates a preliminary inactive state; and performing a cell selection based on the preliminary inactive state information.
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公开(公告)号：US20230284263A1
公开(公告)日：2023-09-07
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 , H04W74/08 , H04W72/1268 , H04W24/10 , H04W72/23
CPC classification number: H04W74/008 , H04W24/10 , H04W72/23 , H04W72/1268 , 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：US20230232396A1
公开(公告)日：2023-07-20
申请号：US18099662
申请日：2023-01-20
Inventor： Hyun Seo PARK , Yong Jin KWON , Yun Joo KIM , An Seok LEE , Yu Ro LEE , Heesoo LEE , Sung Cheol CHANG
IPC: H04W72/1268 , H04W72/542 , H04W76/20
CPC classification number: H04W72/1268 , H04W72/542 , H04W76/20
Abstract: An operation method of a terminal in a communication system may comprise: predicting traffic using a traffic prediction function configured according to traffic prediction configuration information; transmitting a buffer prediction status report including a traffic prediction result to a base station; receiving a first physical uplink shared channel (PUSCH) resource allocation information generated based on the buffer prediction status report; and transmitting data to the base station using first resources allocated by the first PUSCH resource allocation information.
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公开(公告)号：US20230127876A1
公开(公告)日：2023-04-27
申请号：US17968007
申请日：2022-10-18
Inventor： Sung Cheol CHANG
IPC: H04W72/121 , H04W76/30 , H04W36/00
Abstract: An operation method of a transmission and reception point (TRP) constituting a base station may include: receiving, from a first distributed unit (DU) and through a first physical layer, scheduling information of a first terminal and first data to be transmitted to the first terminal; receiving, from a second DU and through the first physical layer, scheduling information of a second terminal to be provided to the second terminal and second data to be transmitted to the second terminal; and simultaneously transmitting the first data and the second data to the first terminal and the second terminal, respectively, through a second physical layer based on the scheduling information of the first terminal and the scheduling information of the second terminal.
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公开(公告)号：US20210007036A1
公开(公告)日：2021-01-07
申请号：US16916792
申请日：2020-06-30
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 in a communication system, according to the present disclosure, may comprise performing measurement on a source base station and neighbor base stations, and identifying a state of a radio link established between the terminal and the source base station; predicting a probability of a handover failure based on the state of the radio link and a measurement result according to the measurement; when it is predicted that the handover is to fail, identifying whether a handover command message is received from the source base station; and when the handover command message is not received, performing cell selection for radio connection re-establishment.
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