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11.发明授权公开(公告)号：US10727979B2
公开(公告)日：2020-07-28
申请号：US15234121
申请日：2016-08-11
Inventor： Jung Sun Um , Hoi Yoon Jung , Sung Jin Yoo , Seung Keun Park
Abstract: Disclosed are operation methods of a communication node in a network supporting licensed and unlicensed bands. An operation method of a user equipment (UE) may comprises receiving, from a base station, a physical downlink control channel (PDCCH) including downlink control information (DCI) in a subframe n−1 of an unlicensed band; decoding the DCI using a common radio network temporary identifier (RNTI); and identifying the number of symbols of the subframe n−1 or a subframe n based on the decoded DCI. Therefore, a performance of the network can be enhanced.
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公开(公告)号：US10701752B2
公开(公告)日：2020-06-30
申请号：US15562005
申请日：2016-01-28
Inventor： Jung Sun Um , Kyu Min Kang , Seung Keun Park , Jae Cheol Park , Sung Jin Yoo , Dong Hun Lee , Hoi Yoon Jung , Su Na Choi , Sung Hyun Hwang
Abstract: The present invention relates to a device and method for allocating a coexistence resource in an unlicensed band. The device according to the present invention comprises: a frame configuration unit for configuring a subframe in which data and a reference signal for a channel in an unlicensed band are allocated, and allocating a part of the symbols of the subframe as a coexistence resource; a signal detection unit for detecting a signal of another LTE system or Wi-Fi system during a transmission idle period where the coexistence resource is allocated; and a transmission processing unit which, when the signal of another system is detected during the transmission idle period, does not occupy a resource for the next subframe, and when the occupation of the coexistence resource by the another system has ended, occupies the resource for the next subframe.
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公开(公告)号：US12262393B2
公开(公告)日：2025-03-25
申请号：US18635345
申请日：2024-04-15
Inventor： Jung Sun Um , Hoiyoon Jung , Seung Keun Park , Sungjin Yoo
IPC: H04W72/23 , H04L5/00 , H04L27/00 , H04L27/26 , H04W16/14 , H04W72/0446 , H04L25/02 , H04W74/0808 , H04W84/12
Abstract: Disclosed herein is a method for transmitting, by a terminal, a sounding reference signal (SRS). The terminal receives a grant for uplink multiple subframes from a base station. The terminal determines a first subframe for an SRS transmission of the terminal among the uplink multiple subframes on the basis of SRS transmission position information received from the base station. Further, the terminal transmits the SRS in the first subframe.
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公开(公告)号：US11722907B2
公开(公告)日：2023-08-08
申请号：US17318099
申请日：2021-05-12
Inventor： Jung Sun Um , Bong-Su Kim , Igor Kim , Seung Keun Park
IPC: H04W16/14 , H04W48/02 , H04W72/0453 , H04W52/24 , H04W72/541
CPC classification number: H04W16/14 , H04W48/02 , H04W52/242 , H04W72/0453 , H04W72/541
Abstract: Provided is a method and apparatus for determining an operating condition for frequency coexistence and an operating condition determining method includes a method of calculating and transferring an inference-free available frequency and an output level to an existing radio station that operates and needs to be protected or a method of calculating a channel access parameter for sharing a frequency with a heterogeneous device, a network, or a system.
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公开(公告)号：US10110428B2
公开(公告)日：2018-10-23
申请号：US15274553
申请日：2016-09-23
Inventor： Jung Sun Um , Sungjin Yoo , Hoiyoon Jung , Seung Keun Park
Abstract: A communication node configures an unlicensed band transmission burst including a plurality of subframes in consideration of an occupancy state of a channel of an unlicensed band and transmits the unlicensed band transmission burst through the unlicensed band. In this case, at least one subframe of the plurality of subframes has a different type from the remaining subframes.
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Patent Agency Ranking
公开(公告)号：US09867071B2
公开(公告)日：2018-01-09
申请号：US14750556
申请日：2015-06-25
Inventor： Sung Jin Yoo , Jung Sun Um , Byung Jang Jeong , Sung Hyun Hwang
CPC classification number: H04W24/08 , H04L1/00 , H04L1/08 , H04W72/0453
Abstract: A wireless communication method may include performing, by a first system, channel monitoring of a first band, detecting a second system that uses the first band, determining whether the first system is to be used in preference to the second system, and allocating a radio resource of the first band to the first system based on whether the first system is to be used in preference to the second system.
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公开(公告)号：US11589381B2
公开(公告)日：2023-02-21
申请号：US17176175
申请日：2021-02-15
Inventor： Jung Sun Um , Hoiyoon Jung , Seung Keun Park , Sungjin Yoo
IPC: H04W72/14 , H04W16/14 , H04W72/04 , H04L5/00 , H04L27/26 , H04L27/00 , H04W72/12 , H04W72/0446 , H04W84/12 , H04W74/08 , H04L25/02
Abstract: Disclosed herein is a method for transmitting, by a terminal, a sounding reference signal (SRS). The terminal receives a grant for uplink multiple subframes from a base station. The terminal determines a first subframe for an SRS transmission of the terminal among the uplink multiple subframes on the basis of SRS transmission position information received from the base station. Further, the terminal transmits the SRS in the first subframe.
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18.发明授权公开(公告)号：US10673576B2
公开(公告)日：2020-06-02
申请号：US15576739
申请日：2016-08-05
Inventor： Jung Sun Um , Sung Jin Yoo , Hoi Yoon Jung , Seung Keun Park
Abstract: An operating method of a communication node in a network supporting licensed and unlicensed bands is disclosed. An operation method of a base station comprises the steps of: transmitting a PDSCH to a UE in an unlicensed band; receiving an HARQ response to the PDSCH from the UE; and determining a size of a CW on the basis of a proportion of NACKs in HARQ responses. Therefore, a performance of a communication network can be improved.
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公开(公告)号：US10595335B2
公开(公告)日：2020-03-17
申请号：US15573753
申请日：2016-10-31
Inventor： Hoi Yoon Jung , Jung Sun Um , Sung Jin Yoo , Seung Keun Park
Abstract: A scheduling method for a communication network supporting an unlicensed band is disclosed. An operation method of UE comprises the steps of: receiving, from a base station, an unlicensed band burst including a plurality of subframes in an unlicensed band; acquiring control information from the unlicensed band burst; and acquiring data from the unlicensed band burst on the basis of the control information. Therefore, the performance of the communication network can be improved.
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公开(公告)号：US10135594B2
公开(公告)日：2018-11-20
申请号：US15234278
申请日：2016-08-11
Inventor： Hoi Yoon Jung , Sung Jin Yoo , Jung Sun Um , Seung Keun Park
Abstract: Disclosed is a scheduling method for a communication network supporting an unlicensed band. An operation method of a user equipment (UE) may comprise obtaining a control channel from a partial subframe having a length of less than 1 millisecond in an unlicensed band; obtaining scheduling information from the control channel; and obtaining a data channel indicated by the scheduling information from the partial subframe. Therefore, performance of the communication network can be enhanced.
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