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公开(公告)号：US20170093465A1
公开(公告)日：2017-03-30
申请号：US14867931
申请日：2015-09-28
IPC分类号： H04B7/04
CPC分类号： H04B7/0413 , H04B7/0857
摘要： A large scale multiple input multiple output (MIMO) communications device includes a first plurality of antenna units (AUs) arranged in an array, and a central processing unit operatively coupled to a first end AU in the first plurality of AUs. Each AU in the first plurality of AUs is operatively coupled to at least two neighboring AUs, and wherein each AU receives wireless signals, receives neighbor information from at least a first neighboring AU, generates local information associated with the AU in accordance with the received wireless signals and the neighbor information, and sends the local information associated with the AU to a second neighboring AU. The central processing unit receives local information associated with the first end AU, and generates estimates of the received transmissions in accordance with the local information associated with the first end AU.
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公开(公告)号：US09917723B2
公开(公告)日：2018-03-13
申请号：US15065072
申请日：2016-03-09
发明人： Guosen Yue , Xiao Feng Qi
CPC分类号： H04L27/366 , H04L1/0048 , H04L1/0054 , H04L1/0631 , H04L5/0055 , H04L25/024 , H04L25/0328 , H04L25/067 , H04L27/2647 , H04L27/3818
摘要： Circuits for producing signals representative of mean and variance estimations for quadrature amplitude modulation (QAM) are provided where the circuits comprise: sequentially repeated first circuit modules and sequentially repeated second circuit modules configured for producing updates in the corresponding estimation iterations. In one embodiment, a closest negative integer power of 2 is used as a substitute multiplicand when multiplying together two or more outputs of hyperbolic function generating units where the substituted for output is less than one. Size and complexity of the corresponding multiplier can then be reduced.
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公开(公告)号：US09800384B2
公开(公告)日：2017-10-24
申请号：US14944013
申请日：2015-11-17
IPC分类号： H04L5/00 , H04B7/0413 , H04W16/28
CPC分类号： H04L5/0053 , H04B7/0413 , H04L5/0007 , H04L5/0023 , H04L5/005 , H04W16/28
摘要： A method for channel estimation includes determining position information of a main transmission point with a primary transmission path to the communications device and of at least one mirror transmission point associated with the main transmission point by at least one secondary transmission path between the main transmission point and the communications device, estimating a primary channel between the main transmission point and the communications device and at least one secondary channel between the at least one mirror transmission point and the communications device in accordance with the position information of the main transmission point and of the at least one mirror transmission point and position information of antennas in an antenna array of the communications device, and instructing use of the estimated primary channel and the at least one estimated secondary channel.
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公开(公告)号：US20170141902A1
公开(公告)日：2017-05-18
申请号：US14944013
申请日：2015-11-17
CPC分类号： H04L5/0053 , H04B7/0413 , H04L5/0007 , H04L5/0023 , H04L5/005 , H04W16/28
摘要： A method for channel estimation includes determining position information of a main transmission point with a primary transmission path to the communications device and of at least one mirror transmission point associated with the main transmission point by at least one secondary transmission path between the main transmission point and the communications device, estimating a primary channel between the main transmission point and the communications device and at least one secondary channel between the at least one mirror transmission point and the communications device in accordance with the position information of the main transmission point and of the at least one mirror transmission point and position information of antennas in an antenna array of the communications device, and instructing use of the estimated primary channel and the at least one estimated secondary channel.
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公开(公告)号：US20170126296A1
公开(公告)日：2017-05-04
申请号：US14932849
申请日：2015-11-04
CPC分类号： H04B7/0617 , H04B7/0413 , H04B17/20
摘要： A method for operating a large scale multiple input multiple output (MIMO) communications device adapted to perform large scale MIMO communications includes determining beamforming coefficients for antennas of an antenna array in accordance with position information of antennas of the antenna array and directional information of a communications device with which the large scale MIMO communications device is communicating, applying the beamforming coefficients to the antennas of the antenna array, and communicating with the communications device using the antenna array.
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公开(公告)号：US20170264478A1
公开(公告)日：2017-09-14
申请号：US15065072
申请日：2016-03-09
发明人： Guosen Yue , Xiao Feng Qi
CPC分类号： H04L27/366 , H04L1/0048 , H04L1/0054 , H04L1/0631 , H04L5/0055 , H04L25/024 , H04L25/0328 , H04L25/067 , H04L27/2647 , H04L27/3818
摘要： Circuits for producing signals representative of mean and variance estimations for quadrature amplitude modulation (QAM) are provided where the circuits comprise: sequentially repeated first circuit modules and sequentially repeated second circuit modules configured for producing updates in the corresponding estimation iterations. In one embodiment, a closest negative integer power of 2 is used as a substitute multiplicand when multiplying together two or more outputs of hyperbolic function generating units where the substituted for output is less than one. Size and complexity of the corresponding multiplier can then be reduced.
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公开(公告)号：US20170141935A1
公开(公告)日：2017-05-18
申请号：US14943946
申请日：2015-11-17
CPC分类号： H04B7/0413 , H04L25/0204 , H04L25/0224
摘要： A method for associating signal sources and paths includes determining secondary paths of a signal received at a reception point, wherein the signal reflects off one or more reflective surfaces before being received at the reception point, determining mirror sources of the secondary paths in accordance with locations of the one or more reflective surfaces and a main source of the signal, determining associations between the secondary paths and the mirror sources based on cross points at which the signal reflected off the one or more reflective surfaces, thereby obtaining path-source associations, and instructing use of the path-source associations in multi-source channel estimation.
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公开(公告)号：US09654306B1
公开(公告)日：2017-05-16
申请号：US14943946
申请日：2015-11-17
IPC分类号： H04L25/02 , H04B7/0413
CPC分类号： H04B7/0413 , H04L25/0204 , H04L25/0224
摘要： A method for associating signal sources and paths includes determining secondary paths of a signal received at a reception point, wherein the signal reflects off one or more reflective surfaces before being received at the reception point, determining mirror sources of the secondary paths in accordance with locations of the one or more reflective surfaces and a main source of the signal, determining associations between the secondary paths and the mirror sources based on cross points at which the signal reflected off the one or more reflective surfaces, thereby obtaining path-source associations, and instructing use of the path-source associations in multi-source channel estimation.
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