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1.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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2.发明申请公开(公告)号：US20190280731A1
公开(公告)日：2019-09-12
申请号：US16424425
申请日：2019-05-28
Inventor： Seung-Chang BANG , Tae Joong KIM , Jae Heung KIM , Jung Im KIM , Jong Suk CHAE , Hyuck Jae LEE , Jae Ryong SHIM , Narm Hee LEE
IPC: H04B1/7073 , H04J13/20 , H04J13/10 , H04J13/00
Abstract: A method for converting source data to a channel-modulated signal having a plurality of pairs of in-phase (I) and quadrature-phase (Q) data in a mobile station, wherein the mobile station uses at least one channel, includes the steps of: a) encoding the source data to generate at least one data part and a control part; b) generating at least one spreading code to be allocated to the channel, wherein each spreading code is selected on the basis of a data rate of the data part and the control part and spreading codes are selected so that two consecutive pairs of the I and Q data are correspondent to two points located on same point or symmetrical with respect to a zero point on a phase domain; and c) spreading the control part and the data part by using the spreading code, to thereby generate the channel-modulated signal.
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公开(公告)号：US20180352601A1
公开(公告)日：2018-12-06
申请号：US15994027
申请日：2018-05-31
Inventor： Hyun Seo PARK , Eun Kyung KIM , Tae Joong KIM , An Seok LEE , Yu Ro LEE , Hyun LEE , Hee Soo LEE
Abstract: Disclosed is an operation method of a terminal in a mobile communication system. The operation method may comprise starting a T310 timer when a physical layer out-of-synchronization occurs in a PDCCH transmitted from a first base station; confirming that an RLF occurs when the PDCCH does not transition to a physical layer in-sync state until the T310 timer expires; performing re-establishment of PDCP layers and RLC layers for all radio bearers except an SRB0; suspending all the radio bearers except the SRB0; performing RRC connection re-establishment with a second base station selected through cell selection; and resuming all the radio bearers when the RRC connection re-establishment with the second base station succeeds.
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4.发明申请公开(公告)号：US20150126257A1
公开(公告)日：2015-05-07
申请号：US14305946
申请日：2014-06-16
Inventor： Tae Joong KIM , Hyun Soon NAM
IPC: H04W52/02
CPC classification number: H04W52/0225 , Y02D70/142 , Y02D70/144 , Y02D70/22
Abstract: Provided are a method and system for providing a sleep state in a device accessible to a wired or wireless network. Provided are a method and a system, which dynamically determine the optimal parameter in a sleep state depending on a network characteristic in providing the sleep state to a network-accessible terminal, and thus reduce the period of an active state of the network-accessible terminal, thereby considerably decreasing power consumption. Provided are a method and a system, which do not unnecessarily use a clock in an active state by selecting the optimal clock according to a purpose of transiting from the sleep state to the active state, and thus reduce the period of the active state of the network-accessible terminal, thereby considerably decreasing power consumption.
Abstract translation: 提供了一种用于在有线或无线网络可访问的设备中提供睡眠状态的方法和系统。 提供了一种方法和系统，其根据在向网络可访问终端提供睡眠状态的网络特性来动态地确定睡眠状态中的最佳参数，并且因此减少网络可访问终端的活动状态的周期 ，从而大大降低功耗。 提供了一种方法和系统，其不会根据从睡眠状态转移到活动状态的目的选择最佳时钟而不必要地使用处于活动状态的时钟，并且因此减少了活动状态的时间 网络可访问终端，从而大大降低功耗。
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公开(公告)号：US20240089809A1
公开(公告)日：2024-03-14
申请号：US18518863
申请日：2023-11-24
Inventor： Hyun Seo PARK , Yun Joo KIM , Eunkyung KIM , Tae Joong KIM , An Seok LEE , Yu Ro LEE , Heesoo LEE
CPC classification number: H04W36/0058 , H04W36/08
Abstract: A handover method of a first terminal in a wireless communication system may comprise: transmitting a first measurement report message to a first cell that is a primary cell (PCell); receiving, from the first cell, one or more first configuration messages for one or more target cells determined according to the first measurement report message; adding each of the one or more target cells as a candidate PCell based on the one or more first configuration messages; and performing data transmission and reception with at least one cell among the first cell and the one or more candidate PCells.
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Patent Agency Ranking
6.发明公开公开(公告)号：US20230247439A1
公开(公告)日：2023-08-03
申请号：US18079671
申请日：2022-12-12
Inventor： Tae Joong KIM
IPC: H04W16/14 , H04W72/0457 , H04W72/54
CPC classification number: H04W16/14 , H04W72/0457 , H04W72/54
Abstract: A method of sharing a frequency between base stations, which is performed by a specialized base station having at least some specialized coverages inside a general purpose coverage of a general purpose base station, may comprise: receiving information about adjacent base stations including the general base station from a mobile edge core network configured to manage the specialized base station; requesting, by the specialized base station, necessary bandwidth parts from the mobile edge core network; receiving allocation information for the bandwidth parts from the mobile edge core network; and setting the bandwidth parts based on the allocation information, wherein the specialized base station provides a specialized service to a specialized terminal in the specialized coverage according to the set bandwidth parts.
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公开(公告)号：US20230128351A1
公开(公告)日：2023-04-27
申请号：US17974348
申请日：2022-10-26
Inventor： Tae Joong KIM
Abstract: A sidelink communication method, performed by a first terminal, may comprise: determining a first power value of a first control channel for transmitting control information for sidelink communication based on open-loop power control; transmitting the control information on the first control channel having the first power value; in response to receiving a response signal corresponding to the control information, determining a second power value of a first data channel for transmitting data; and transmitting a second control channel and the first data channel in one predetermined slot for the sidelink communication, wherein a third power value of the second control channel and the second power value of the first data channel are determined based on at least a power value of the first control channel.
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公开(公告)号：US20220086914A1
公开(公告)日：2022-03-17
申请号：US17422218
申请日：2020-02-10
Inventor： Jung Hoon LEE , Jae Heung KIM , Cheul Soon KIM , Tae Joong KIM , Sung Hyun MOON
Abstract: An operation method of a terminal that receives a DRS in a mobile communication system operating in an unlicensed spectrum includes: receiving an SS/PBCH block included in the DRS; checking at least one monitoring occasion for a PDCCH for receiving RMSI on the basis of a PBCH included in the SS/PBCH; monitoring the at least one monitoring occasion and detecting the PDCCH for receiving the RMSI; and receiving a PDSCH including the RMSI on the basis of the detected PDCCH, wherein the at least one monitoring occasion is set to at least one symbol among symbols in front of the PDSCH and symbols behind the PDSCH. Accordingly, the DRS and data may be reliably transmitted and received in the mobile communication system operating in the unlicensed spectrum.
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公开(公告)号：US20210297181A1
公开(公告)日：2021-09-23
申请号：US17159543
申请日：2021-01-27
Inventor： Ok Sun PARK , Gi Yoon PARK , Seok Ki KIM , Woo Ram SHIN , Tae Joong KIM , Jae Sheung SHIN , Young Ha LEE
IPC: H04L1/00
Abstract: An operation method of a first communication node in a communication system includes receiving a signal from a second communication node; demodulating the signal to obtain LLR values; calculating a first codeword based on the LLR values; selecting error patterns from among all error patterns based on Hamming weights; generating second codewords by applying the first codeword to each of the selected error patterns; and determining a codeword having a highest similarity to the first codeword among the second codewords as an optimal codeword.
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10.发明申请公开(公告)号：US20190199392A1
公开(公告)日：2019-06-27
申请号：US16221970
申请日：2018-12-17
Inventor： Seon Ae KIM , Dong Hyuk GWAK , Tae Joong KIM , Jung Bo SON , Yu Ro LEE , Hyun LEE , Hyung Sik JU
Abstract: An operation method of an in-band full duplex (IFD) transceiving apparatus including a receiving end, a transmitting end, a digital self-interference cancellation (DSIC) processing unit, and a digital SI cancellation unit may comprise generating, by the DSIC processing unit, signal shaping coefficients for wave shaping of a signal of the transmitting end; generating, by the DSIC processing unit, channel estimation coefficients for cancellation of a self-interference signal in a reception signal of the receiving end; forming, by the DSIC processing unit, a transmission signal based on the signal shaping coefficients; and generating, by the DSIC processing unit, a control signal for cancellation of the self-interference signal in the reception signal based on the channel estimation coefficients.
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