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公开(公告)号：US20210385703A1
公开(公告)日：2021-12-09
申请号：US17338575
申请日：2021-06-03
Inventor： Hyun Seo PARK , Yun Joo KIM , Eunkyung KIM , Tae Joong KIM , An Seok LEE , Yu Ro LEE , Heesoo LEE
IPC: H04W36/00
Abstract: Disclosed are a method and an apparatus for enhanced conditional handover (CHO). An operation method of a base station may comprise: receiving a measurement report message from a terminal; transmitting a CHO request message to one or more candidate target cells; receiving a CHO request ACK message from the one or more candidate target cells; and transmitting an RRC reconfiguration message including CHO status report configuration information to the terminal, wherein the CHO status report configuration information requests transmission of information for determining a target cell to which terminal is likely to be handed over among the one or more candidate target cells.
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公开(公告)号：US20200045698A1
公开(公告)日：2020-02-06
申请号：US16582599
申请日：2019-09-25
Inventor： Cheulsoon KIM , Eunkyung KIM , Gi Yoon PARK , Young Jo KO
Abstract: A base station divides a subframe into a downlink time duration for downlink, an uplink time duration for uplink, and a guard period between the downlink time duration and the uplink time duration. The base station transmits a downlink control channel including information on a downlink packet duration allocated for downlink transmission of a terminal and information on an uplink packet duration allocated for uplink transmission of the terminal to the terminal in the downlink time duration.
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公开(公告)号：US20230038795A1
公开(公告)日：2023-02-09
申请号：US17874427
申请日：2022-07-27
Inventor： Hyun Seo PARK , Yong Jin KWON , Yun Joo KIM , Eunkyung KIM , An Seok LEE , Yu Ro LEE , Heesoo LEE
Abstract: An operation method of a terminal in a communication system may comprise: receiving a first occurrence reporting condition of a handover problem from a source base station; performing a handover from the source base station to a target base station; identifying whether a handover problem occurs based on the first occurrence reporting condition while performing the handover; and in response to identifying that a handover problem occurs, transmitting information indicating the occurrence of the handover problem to the target base station.
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4.发明申请公开(公告)号：US20200336960A1
公开(公告)日：2020-10-22
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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公开(公告)号：US20170215188A1
公开(公告)日：2017-07-27
申请号：US15410966
申请日：2017-01-20
Inventor： Cheulsoon KIM , Eunkyung KIM , Gi Yoon PARK , Young Jo KO
CPC classification number: H04W72/0446 , H04L1/18 , H04L1/1822 , H04L1/1838 , H04L1/1854 , H04L5/0091
Abstract: A base station divides a subframe into a downlink time duration for downlink, an uplink time duration for uplink, and a guard period between the downlink time duration and the uplink time duration. The base station transmits a downlink control channel including information on a downlink packet duration allocated for downlink transmission of a terminal and information on an uplink packet duration allocated for uplink transmission of the terminal to the terminal in the downlink time duration.
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Patent Agency Ranking
6.发明申请公开(公告)号：US20170118766A1
公开(公告)日：2017-04-27
申请号：US15331371
申请日：2016-10-21
Inventor： Seung-Kwon BAEK , Young Jo KO , Eunkyung KIM , Chanho YOON
CPC classification number: H04W72/1268 , H04L1/1816 , H04L1/1877 , H04L1/1887 , H04W72/1252
Abstract: Disclosed herein is a method for transmitting, by a terminal, an uplink signal using a first cell type representing a cell using a licensed band frequency and a second cell type representing a cell using an unlicensed band frequency. The terminal configures at least one first radio bearer (RB) being able to use a radio resource for the first cell type and a radio resource for the second cell type for an uplink transmission. The terminal configures at least one second RB being able to use a radio resource for the first cell type for an uplink transmission. The terminal includes at least one first logical channel corresponding to the at least one first RB in a first logical channel group, and the terminal includes at least one second logical channel corresponding to the at least one second RB in a second logical channel group.
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7.发明申请METHOD AND APPARATUS FOR TRANSMITTING SIGNAL USING UNLICENSED BAND IN CELLUAR SYSTEM 审中-公开用于在CELLUAR系统中使用未经许可的信号发送信号的方法和装置公开(公告)号：US20160227425A1
公开(公告)日：2016-08-04
申请号：US15010855
申请日：2016-01-29
Inventor： Eunkyung KIM , Seung-Kwon BAEK , Chanho YOON , Jae Sun CHA , Sung Cheol CHANG , Young Jo KO
CPC classification number: H04L5/0007 , H04L1/1812 , H04L1/1819 , H04L5/001 , H04L5/0044 , H04L5/0055 , H04L5/0073 , H04W74/0808
Abstract: A method and an apparatus for transmitting a resource, and a method for the HARQ retransmission using an unlicensed band include an operation of performing clear channel assessment (CCA) for the unlicensed band; and an operation of occupying a channel of the unlicensed band according to the CCA and determining whether or not the resource is transmitted based on a position of a transmission time interval (TTI) within a channel occupancy time (COT) for the channel.
Abstract translation: 一种用于发送资源的方法和装置，以及使用非许可频带进行HARQ重传的方法，包括为非许可频带执行清除信道评估（CCA）的操作; 以及根据CCA占用非许可频带的信道的操作，并且基于在该信道的信道占用时间（COT）内的传输时间间隔（TTI）的位置来确定是否发送资源。
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公开(公告)号：US20140146728A1
公开(公告)日：2014-05-29
申请号：US14067412
申请日：2013-10-30
Inventor： Jae Sun CHA , Eunkyung KIM , Anseok LEE , Wooram SHIN , Kwang Jae LIM
IPC: H04W52/02
CPC classification number: H04W52/0206 , Y02D70/00
Abstract: A method of managing a low-duty mode operation is provided by a small base station. The small base station determines a low-duty cycle pattern in which an available interval for data traffic transmission on active air interface and an unavailable interval for transmitting no data traffic are repeated, and provides a terminal with low-duty cycle pattern information. The low-duty cycle pattern information includes a length of the available interval and a start offset indicating a wireless frame at which the low-duty cycle pattern starts.
Abstract translation: 小型基站提供管理低负载模式操作的方法。 小型基站决定了低占空比模式，其中重复在活动空中接口上进行数据业务传输的可用间隔和不发送数据业务的不可用间隔，并为终端提供低占空比模式信息。 低占空比模式信息包括可用间隔的长度和指示低占空比模式开始的无线帧的起始偏移。
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公开(公告)号：US20210100036A1
公开(公告)日：2021-04-01
申请号：US16963747
申请日：2019-04-10
Inventor： Eunkyung KIM , Tae Joong KIM , Hyun Seo PARK , An Seok LEE , Yu Ro LEE , Hyun LEE
Abstract: Disclosed are a method and a device for low latency communication in a communication system. An operation method of a base station comprises the steps of: transmitting first scheduling information of data units, transmitted through A sections in subframe #n, to a terminal through a first control channel in subframe #n; transmitting the data units to the terminal through the A sections; and transmitting second scheduling information of data unit(s), transmitted through B section(s) in subframe #(n+k) following subframe #n, to the terminal through a second control channel in subframe #(n+k). Therefore, the performance of the communication system can be improved.
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10.发明申请公开(公告)号：US20200374914A1
公开(公告)日：2020-11-26
申请号：US16990169
申请日：2020-08-11
Inventor： Eunkyung KIM , Tae Joong KIM , Hyun Seo PARK , An Seok LEE , Yu Ro LEE , Hyun LEE
Abstract: An operation method of a terminal in a communication system may include receiving bandwidth part (BWP) change information from a base station in a BWP i; changing an operation BWP of the terminal from the BWP i to a BWP j even when a transmission and reception procedure of first data in the BWP i is not completed at a BWP changing point indicated by the BWP change information; and performing a data transmission and reception procedure of second data in the BWP j, wherein the BWP i and the BWP j are different BWPs, and i and j are different integers.
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