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Patent Agency Ranking
公开(公告)号：USRE47522E1
公开(公告)日：2019-07-16
申请号：US13684283
申请日：2012-11-23
Inventor： Hee-Jung Yu , Eun-Young Choi , Chan-Ho Yoon , Jung-Bo Son , Il-Gu Lee , Deuk-Su Lyu , Tae-hyun Jeon , Seung-Wook Min , Sok-Kyu Lee , Seung-Chan Bang , Seung-Ku Hwang
Abstract: The present invention relates to an orthogonal frequency division multiplexing wireless local area network (LAN) transmitting/receiving system for providing expanded service coverage, and a method thereof. A first OFDM modulation is performed for an even-numbered time, and a second OFDM modulation is performed for an odd-numbered time. A transmitting frame including a plurality of signal fields according to the first and second OFDM modulation is transmitted. The receiving system determines whether a signal field is repeatedly generated in the frame. If the signal field is not repeatedly generated, corresponding demodulation is performed. If repeatedly performed, the signal field is demodulated by using first bit allocation information and second bit allocation information having a ½ value of the first bit allocation information. A data field is demodulated according to the demodulated signal field.
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2.发明公开公开(公告)号：US20240137936A1
公开(公告)日：2024-04-25
申请号：US18395456
申请日：2023-12-22
Inventor： Yu-Ro Lee , Jung-Bo Son , Sok-Kyu Lee
CPC classification number: H04W72/20 , H04B7/0452 , H04L1/007 , H04L1/0606 , H04L1/0612 , H04L5/0023 , H04L5/0053 , H04L5/0073 , H04W48/08 , H04L1/0072 , H04W28/06
Abstract: The present invention relates to a method and an apparatus for transmitting control and training symbols to improve transmission efficiency in a multi-user wireless communication system. The method for transmitting the control and training symbols in the multi-user wireless communication system according to one embodiment of the present invention comprises the steps of: determining whether a required transmission rate of each data can be satisfied through channel estimation in each of terminals when different data are simultaneously transmitted to each of the terminals; and transmitting a data frame to each of the terminals, the data frame being composed to discriminate the control and training symbols in each of the terminals using a combination of time, frequency, and code area when the required transmission rate of each data is not satisfied according to the determined result.
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3.发明授权公开(公告)号：US11856578B2
公开(公告)日：2023-12-26
申请号：US17314067
申请日：2021-05-07
Inventor： Yu-Ro Lee , Jung-Bo Son , Sok-Kyu Lee
IPC: H04W72/04 , H04W72/20 , H04L1/00 , H04L5/00 , H04W48/08 , H04B7/0452 , H04L1/06 , H04W28/06 , H04W28/22 , H04W84/12 , H04W28/04 , H04W80/04
CPC classification number: H04W72/20 , H04B7/0452 , H04L1/007 , H04L1/0606 , H04L1/0612 , H04L5/0023 , H04L5/0053 , H04L5/0073 , H04W48/08 , H04L1/0072 , H04W28/04 , H04W28/06 , H04W28/22 , H04W80/04 , H04W84/12
Abstract: The present invention relates to a method and an apparatus for transmitting control and training symbols to improve transmission efficiency in a multi-user wireless communication system. The method for transmitting the control and training symbols in the multi-user wireless communication system according to one embodiment of the present invention comprises the steps of: determining whether a required transmission rate of each data can be satisfied through channel estimation in each of terminals when different data are simultaneously transmitted to each of the terminals; and transmitting a data frame to each of the terminals, the data frame being composed to discriminate the control and training symbols in each of the terminals using a combination of time, frequency, and code area when the required transmission rate of each data is not satisfied according to the determined result.
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4.发明申请公开(公告)号：US20210266888A1
公开(公告)日：2021-08-26
申请号：US17314067
申请日：2021-05-07
Inventor： Yu-Ro Lee , Jung-Bo Son , Sok-Kyu Lee
Abstract: The present invention relates to a method and an apparatus for transmitting control and training symbols to improve transmission efficiency in a multi-user wireless communication system. The method for transmitting the control and training symbols in the multi-user wireless communication system according to one embodiment of the present invention comprises the steps of: determining whether a required transmission rate of each data can be satisfied through channel estimation in each of terminals when different data are simultaneously transmitted to each of the terminals; and transmitting a data frame to each of the terminals, the data frame being composed to discriminate the control and training symbols in each of the terminals using a combination of time, frequency, and code area when the required transmission rate of each data is not satisfied according to the determined result.
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5.发明授权公开(公告)号：US11006393B2
公开(公告)日：2021-05-11
申请号：US14555457
申请日：2014-11-26
Inventor： Yu-Ro Lee , Jung-Bo Son , Sok-Kyu Lee
IPC: H04W84/12 , H04W72/04 , H04L1/00 , H04L5/00 , H04W48/08 , H04B7/0452 , H04L1/06 , H04W28/06 , H04W28/22 , H04W28/04 , H04W80/04
Abstract: The present invention relates to a method and an apparatus for transmitting control and training symbols to improve transmission efficiency in a multi-user wireless communication system. The method for transmitting the control and training symbols in the multi-user wireless communication system according to one embodiment of the present invention comprises the steps of: determining whether a required transmission rate of each data can be satisfied through channel estimation in each of terminals when different data are simultaneously transmitted to each of the terminals; and transmitting a data frame to each of the terminals, the data frame being composed to discriminate the control and training symbols in each of the terminals using a combination of time, frequency, and code area when the required transmission rate of each data is not satisfied according to the determined result.
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