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公开(公告)号：US10461816B2
公开(公告)日：2019-10-29
申请号：US15417516
申请日：2017-01-27
发明人： Jae-Chon Yu , Hwan-Joon Kwon , Dong-Hee Kim , Yu-Chul Kim , Jin-Kyu Han
摘要： Methods and apparatus are provided for transmitting data in a communication system with a plurality of antennas. The transmitter generates a first pilot signal and a second pilot signal. Data, the first pilot signal, and the second pilot signal are transmitted over a wireless network. The first pilot signal is transmitted at a first position in a time domain in each transmission time interval of the data over each frequency in a frequency domain used to transmit the data, and the second pilot signal is transmitted at a second position known by the transmitter and a receiver in the time domain and the frequency domain of a transmission time interval.
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公开(公告)号：US10432382B2
公开(公告)日：2019-10-01
申请号：US14660614
申请日：2015-03-17
发明人： Hwan-Joon Kwon , Kyeong-In Jeong , Jin-Kyu Han , Dong-Hee Kim
IPC分类号： H04W4/00 , H04L5/00 , H04B7/06 , H04L1/00 , H04L27/26 , H04W24/10 , H04W52/24 , H04W52/32 , H04W72/12 , H04W24/08 , H04W72/04 , H04B17/24 , H04B17/26 , H04B17/309 , H04B17/30 , H04W52/22 , H04B17/327
摘要： An apparatus and method are provided for feeding back channel quality information and performing scheduling using the fed-back channel quality information in a wireless communication system based on Orthogonal Frequency Division Multiple Access (OFDMA). In the OFDMA wireless communication system, forward performance degradation due to a decrease in an amount of reverse channel quality information is reduced, and also an increase in the reverse load due to channel quality information feedback is suppressed. A base station controls power of a physical channel using information fed back from a mobile station. In a method for feeding back channel quality information from the mobile station, sub-band-by-sub-band channel quality information is measured and channel-by-channel quality information of a number of channels is transmitted in order of sub-bands of better channel quality information. Average channel quality information for a total band is measured and transmitted.
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公开(公告)号：US10084514B2
公开(公告)日：2018-09-25
申请号：US14797795
申请日：2015-07-13
发明人： Jin-Kyu Han , Hwan-Joon Kwon , Dong-Hee Kim , Jae-Chon Yu , Yeon-Ju Lim
IPC分类号： H04L27/00 , H04B7/0417 , H04L27/26 , H04W72/04 , H04L1/00 , H04B7/06 , H04B7/0452 , H04L25/02 , H04L25/03
CPC分类号： H04B7/0417 , H04B7/0452 , H04B7/0632 , H04B7/0641 , H04B7/065 , H04L1/0026 , H04L1/0039 , H04L1/004 , H04L25/0204 , H04L25/0222 , H04L25/0228 , H04L27/2646 , H04L2025/03414 , H04L2025/03426 , H04L2025/03802 , H04W72/0406
摘要： Methods and apparatuses are provided for transmitting feedback information in a communication system supporting multiple transmission methods with multi antenna transmission. Information for a default Multiple Input Multiple Output (MIMO) mode is received. It is determined whether the default MIMO mode is a Single-User MIMO mode or a Multi-User MIMO mode based on the information for the default MIMO mode. First Channel Quality Indicator (CQI) feedback information is calculated for one of the Single-User MIMO mode and the Multi-User MIMO mode determined as the default MIMO mode. The first CQI feedback information and DELTA CQI feedback information, which is a differential value between the first CQI feedback information and second CQI feedback information for a non-default MIMO mode, are transmitted.
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公开(公告)号：USRE46951E1
公开(公告)日：2018-07-10
申请号：US14518741
申请日：2014-10-20
发明人： Jin-Kyu Han , Dae-Gyun Kim , Hwan-Joon Kwon , Dong-Hee Kim , Youn-Sun Kim , Yu-Chul Kim , Cheol Mun
IPC分类号： H04B1/00
CPC分类号： H04B7/0626 , H04B7/0634 , H04B7/0639 , H04B7/0658 , H04L1/0003 , H04L1/0009 , H04L1/0026 , H04L1/0029 , H04L1/06 , H04L25/0228 , H04L25/0242
摘要： An apparatus and method for transmitting/receiving data in a mobile communication system using multiple antennas are provided. A receiver estimates a fading channel of received data, selects a weight set relative to a maximum data transmission rate from at least one weight set with elements of a plurality of orthogonal weight vectors, and transmits feedback information including the selected weight set and channel-by-channel state information to a transmitter. The transmitter demultiplexes data to be transmitted on a basis of the feedback information into at least one sub-data stream, multiplies each sub-data stream by an associated weight, and transmits the data.
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公开(公告)号：US09831998B2
公开(公告)日：2017-11-28
申请号：US14036105
申请日：2013-09-25
发明人： Hwan-Joon Kwon , Kyeong-In Jeong , Jin-Kyu Han , Dong-Hee Kim
IPC分类号： H04W4/00 , H04L5/00 , H04B7/06 , H04L1/00 , H04L27/26 , H04W24/10 , H04W52/24 , H04W52/32 , H04W72/12 , H04W24/08 , H04W72/04 , H04B17/24 , H04B17/26 , H04B17/309 , H04B17/30 , H04W52/22 , H04B17/327
CPC分类号： H04L5/0057 , H04B7/0689 , H04B17/24 , H04B17/26 , H04B17/30 , H04B17/309 , H04B17/327 , H04L1/0003 , H04L1/0026 , H04L5/0007 , H04L5/0053 , H04L27/2601 , H04W24/08 , H04W24/10 , H04W52/225 , H04W52/247 , H04W52/325 , H04W72/0453 , H04W72/1231 , H04W72/1284
摘要： An apparatus and method are provided for feeding back channel quality information and performing scheduling using the fed-back channel quality information in a wireless communication system based on Orthogonal Frequency Division Multiple Access (OFDMA). In the OFDMA wireless communication system, forward performance degradation due to a decrease in an amount of reverse channel quality information is reduced, and also an increase in the reverse load due to channel quality information feedback is suppressed. A base station controls power of a physical channel using information fed back from a mobile station. In a method for feeding back channel quality information from the mobile station, sub-band-by-sub-band channel quality information is measured and channel-by-channel quality information of a number of channels is transmitted in order of sub-bands of better channel quality information. Average channel quality information for a total band is measured and transmitted.
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36.再颁专利Apparatus and method for transmitting/receiving data in a mobile communication system using multiple antennas 有权在使用多个天线的移动通信系统中发送/接收数据的装置和方法公开(公告)号：USRE45203E1
公开(公告)日：2014-10-21
申请号：US13871939
申请日：2013-04-26
发明人： Jin-Kyu Han , Dae-Gyun Kim , Hwan-Joon Kwon , Dong-Hee Kim , Youn-Sun Kim , Yu-Chul Kim , Cheol Mun
CPC分类号： H04B7/0626 , H04B7/0634 , H04B7/0639 , H04B7/0658 , H04L1/0003 , H04L1/0009 , H04L1/0026 , H04L1/0029 , H04L1/06 , H04L25/0228 , H04L25/0242
摘要： An apparatus and method for transmitting/receiving data in a mobile communication system using multiple antennas are provided. A receiver estimates a fading channel of received data, selects a weight set relative to a maximum data transmission rate from at least one weight set with elements of a plurality of orthogonal weight vectors, and transmits feedback information including the selected weight set and channel-by-channel state information to a transmitter. The transmitter demultiplexes data to be transmitted on a basis of the feedback information into at least one sub-data stream, multiplies each sub-data stream by an associated weight, and transmits the data.
摘要翻译： 提供了一种在使用多个天线的移动通信系统中发送/接收数据的装置和方法。 接收机估计接收数据的衰落信道，从具有多个正交权重向量的元素的至少一个权重集中选择相对于最大数据传输速率的权重集，并且发送包括所选权重集和频道的反馈信息 信道状态信息发送到发送器。 发射机将基于反馈信息发送的数据解复用为至少一个子数据流，将每个子数据流乘以相关联的权重，并发送数据。
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