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公开(公告)号：US11206103B2
公开(公告)日：2021-12-21
申请号：US16542007
申请日：2019-08-15
Inventor： Sun-Hyoung Kwon , Jae-Young Lee , Sung-Ik Park , Bo-Mi Lim , Heung-Mook Kim , Jin-Hyuk Song
Abstract: An apparatus and method for broadcast signal frame using a boundary between Physical Layer Pipes (PLPs) of a core layer are disclosed. An apparatus for generating broadcast signal frame according to an embodiment of the present invention includes a combiner configured to generate a multiplexed signal by combining a core layer signal and an enhanced layer signal at different power levels; a power normalizer configured to reduce the power of the multiplexed signal to a power level corresponding to the core layer signal; a time interleaver configured to generate a time-interleaved signal by performing interleaving that is applied to both the core layer signal and the enhanced layer signal; and a frame builder configured to generate a broadcast signal frame including a preamble for signaling time interleaver information corresponding to the time interleaver, the time interleaver uses one of time interleaver groups, and a boundary between the time interleaver groups is a boundary between Physical Layer Pipes (PLPs) of a core layer corresponding to the core layer signal.
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Patent Agency Ranking
2.发明申请公开(公告)号：US20180167902A1
公开(公告)日：2018-06-14
申请号：US15819969
申请日：2017-11-21
Inventor： Sang-Jung Ra , Jin-Hyuk Song , Ho-Sook Lee , Dong-Joon Choi , Joon-Young Jung , Nam-Ho Hur
IPC: H04W56/00
Abstract: Disclosed herein are an apparatus and method for detecting an upstream RF signal based on a preamble. The apparatus for detecting an upstream RF signal based on a preamble includes an analog-to-digital converter unit for receiving an RF analog signal and converting the same into an RF digital signal; a down-converter unit for converting the RF digital signal into a baseband digital signal; a packet detection unit for performing packet detection by performing an operation on the baseband digital signal and preset differential preamble signals; and a timing calculation unit for generating timing information of a terminal device based on the baseband digital signal and time information generated through the packet detection.
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公开(公告)号：US11050593B1
公开(公告)日：2021-06-29
申请号：US16866007
申请日：2020-05-04
Inventor： Kwan-Woong Ryu , Jin-Hyuk Song , Joon-Young Jung , Dong-Joon Choi
Abstract: Disclosed herein are a synchronization apparatus and method for a upstream system. The synchronization apparatus for a upstream system includes one or more processors, and execution memory for storing at least one program that is executed by the one or more processors, wherein the at least one program is configured to receive a signal and calculate a first channel estimation value for the received signal using a predefined pilot, and calculate a second channel estimation value using a predefined complementary pilot and the first channel estimation value.
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公开(公告)号：US10425906B2
公开(公告)日：2019-09-24
申请号：US15819969
申请日：2017-11-21
Inventor： Sang-Jung Ra , Jin-Hyuk Song , Ho-Sook Lee , Dong-Joon Choi , Joon-Young Jung , Nam-Ho Hur
Abstract: Disclosed herein are an apparatus and method for detecting an upstream RF signal based on a preamble. The apparatus for detecting an upstream RF signal based on a preamble includes an analog-to-digital converter unit for receiving an RF analog signal and converting the same into an RF digital signal; a down-converter unit for converting the RF digital signal into a baseband digital signal; a packet detection unit for performing packet detection by performing an operation on the baseband digital signal and preset differential preamble signals; and a timing calculation unit for generating timing information of a terminal device based on the baseband digital signal and time information generated through the packet detection.
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公开(公告)号：US11616600B2
公开(公告)日：2023-03-28
申请号：US17527013
申请日：2021-11-15
Inventor： Sun-Hyoung Kwon , Jae-Young Lee , Sung-Ik Park , Bo-Mi Lim , Heung-Mook Kim , Jin-Hyuk Song
Abstract: An apparatus for generating broadcast signal frame according to an embodiment of the present invention includes a combiner configured to generate a multiplexed signal by combining a core layer signal and an enhanced layer signal at different power levels; a power normalizer configured to reduce the power of the multiplexed signal to a power level corresponding to the core layer signal; a time interleaver configured to generate a time -interleaved signal by performing interleaving that is applied to both the core layer signal and the enhanced layer signal; and a frame builder configured to generate a broadcast signal frame including a preamble for signaling time interleaver information corresponding to the time interleaver, the time interleaver uses one of time interleaver groups, and a boundary between the time interleaver groups is a boundary between Physical Layer Pipes (PLPs) of a core layer corresponding to the core layer signal.
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公开(公告)号：US10439760B2
公开(公告)日：2019-10-08
申请号：US15532065
申请日：2016-03-25
Inventor： Sun-Hyoung Kwon , Jae-Young Lee , Sung-Ik Park , Bo-Mi Lim , Heung-Mook Kim , Jin-Hyuk Song
Abstract: An apparatus and method for broadcast signal frame using a boundary between Physical Layer Pipes (PLPs) of a core layer are disclosed. An apparatus for generating broadcast signal frame according to an embodiment of the present invention includes a combiner configured to generate a multiplexed signal by combining a core layer signal and an enhanced layer signal at different power levels; a power normalizer configured to reduce the power of the multiplexed signal to a power level corresponding to the core layer signal; a time interleaver configured to generate a time-interleaved signal by performing interleaving that is applied to both the core layer signal and the enhanced layer signal; and a frame builder configured to generate a broadcast signal frame including a preamble for signaling time interleaver information corresponding to the time interleaver, the time interleaver uses one of time interleaver groups, and a boundary between the time interleaver groups is a boundary between Physical Layer Pipes (PLPs) of a core layer corresponding to the core layer signal.
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