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1. 发明申请

US20170331534A1 BEAMFORMING SMOOTHING AND INDICATION 审中-公开
公开(公告)号：US20170331534A1
公开(公告)日：2017-11-16
申请号：US15396071
申请日：2016-12-30
申请人： Feng Jiang , Qinghua Li , Xiaogang Chen , Yuan Zhu , Wenting Chang , Xintian E. Lin
发明人： Feng Jiang , Qinghua Li , Xiaogang Chen , Yuan Zhu , Wenting Chang , Xintian E. Lin
IPC分类号： H04B7/0456 , H04B7/06 , H04W84/12 , H04B7/0452
CPC分类号： H04B7/0617 , H04B7/0452 , H04B7/0634
摘要： Methods, apparatuses, computer readable media for beamforming smoothing and indication in a wireless network are disclosed. An apparatus of a wireless device comprising processing circuitry is disclosed. The processing circuitry is configured to decode a null data packet (NDP). The processing circuitry is further configured to determine beamforming vectors or matrixes from a channel matrix estimate from the NDP, and smooth the beamforming vectors or matrixes. The processing circuitry is further configured to configure the station to transmit feedback, the feedback including the smooth beamfortning vectors or matrixes, and decode a downlink (DL) physical layer convergence procedure (PLCP) protocol data unit (PPDU)(DL PPDU) from the access point where the DL PPDU beamformed based on the smooth beamforming vectors or matrixes.

2. 发明申请

US20160100381A1 SYSTEMS, METHODS, AND DEVICES FOR EFFICIENT INDICATION OF BANDWIDTH AND STREAM ALLOCATION 审中-公开
标题翻译：用于有效指示带宽和流分配的系统，方法和设备
公开(公告)号：US20160100381A1
公开(公告)日：2016-04-07
申请号：US14582840
申请日：2014-12-24
申请人： Qinghua Li , Xiaogang Chen , Yuan Zhu , Rongzhen Yang , Xintian E. Lin
发明人： Qinghua Li , Xiaogang Chen , Yuan Zhu , Rongzhen Yang , Xintian E. Lin
IPC分类号： H04W72/04
CPC分类号： H04L5/0044 , H04B7/02 , H04L5/0023
摘要： Example systems, methods, and devices for efficient indication of bandwidth and stream allocation are discussed. In one embodiment, a method for indication of bandwidth allocation in a wireless network can include partitioning, by a network device, a bandwidth of a wireless signal into a plurality of subband units, assigning one or more switch bits between adjacent subband units, and allocating one or more modified subband units to one or more users of the network. In another embodiment, a method for stream allocation can include partitioning, by a network device, a spatial stream of a wireless signal into a plurality of spatial streams, assigning one or more switch bits between adjacent spatial streams, and allocating one or more modified spatial streams to one or more users of the network. Certain methods, apparatus, and systems described herein can be applied to 802.11ax or any other wireless standard.
摘要翻译：讨论了用于有效指示带宽和流分配的示例系统，方法和设备。在一个实施例中，用于在无线网络中指示带宽分配的方法可以包括由网络设备将无线信号的带宽划分成多个子带单元，在相邻子带单元之间分配一个或多个开关位，并且分配一个或多个修改的子带单元到网络的一个或多个用户。在另一个实施例中，用于流分配的方法可以包括由网络设备将无线信号的空间流划分成多个空间流，在相邻空间流之间分配一个或多个交换位，并且分配一个或多个修改后的空间流到网络的一个或多个用户。本文描述的某些方法，装置和系统可以应用于802.11ax或任何其它无线标准。

3. 发明授权

US09712217B2 Parallel channel training in multi-user multiple-input and multiple-output system 有权
公开(公告)号：US09712217B2
公开(公告)日：2017-07-18
申请号：US14582332
申请日：2014-12-24
申请人： Qinghua Li , Xiaogang Chen , Huaning Niu , Robert Stacey , Yuan Zhu , Xintian E. Lin
发明人： Qinghua Li , Xiaogang Chen , Huaning Niu , Robert Stacey , Yuan Zhu , Xintian E. Lin
IPC分类号： H04B7/04 , H04B7/0452 , G06N99/00 , H04L5/00 , H04L27/26 , H04W72/00
CPC分类号： H04B7/0452 , G06N99/005 , H04L5/0025 , H04L5/0051 , H04L27/2613 , H04W72/00
摘要： This disclosure describes systems, and methods related to parallel channel training in communication networks. A first computing device comprising one or more processors and one or more transceiver component may receive a first connection request from a second computing device, and a second connection request from a third computing device. The first computing device may send the first training field to the second computing device based at least in part on the first connection request and sending in parallel, the second training field to the third computing device based at least in part on the second connection request. The first computing device may establish a first spatial channel stream with the second computing device based at least in part on the first training field and a second spatial channel stream with the third computing device based at least in part on the second training field.

4. 发明授权

US08737199B2 Techniques using differential precoding for highly correlated channels in wireless networks 有权
标题翻译：使用差分预编码技术在无线网络中高度相关的信道
公开(公告)号：US08737199B2
公开(公告)日：2014-05-27
申请号：US12757109
申请日：2010-04-09
申请人： Xiaogang Chen , Yuan Zhu , Qinghua Li , Xintian E. Lin , Yang-Seok Choi
发明人： Xiaogang Chen , Yuan Zhu , Qinghua Li , Xintian E. Lin , Yang-Seok Choi
IPC分类号： G01R31/08
CPC分类号： H04B7/0478 , H04B7/0465 , H04B7/0617 , H04B7/0639 , H04B7/0641
摘要： An embodiment of the present invention provides a method of using differential precoding for highly correlated channels in a wireless network, comprising, using a differential codebook optimized for highly correlated antennas.
摘要翻译：本发明的实施例提供了一种在无线网络中对高度相关的信道使用差分预编码的方法，包括：使用针对高度相关的天线优化的差分码本。

5. 发明申请

US20110158337A1 OFDM TRANSMITTER AND METHODS FOR REDUCING THE EFFECTS OF SEVERE INTERFERENCE WITH SYMBOL LOADING 有权
标题翻译： OFDM发射机和减少严重干扰对符号加载的影响的方法
公开(公告)号：US20110158337A1
公开(公告)日：2011-06-30
申请号：US12889651
申请日：2010-09-24
申请人： Qinghua Li , Huaning Niu , Yuan Zhu , Xintian E. Lin , Xiaogang Chen , Alexei Vladimirovich Davydov , Thomas J. Kenney , Eldad Perahia
发明人： Qinghua Li , Huaning Niu , Yuan Zhu , Xintian E. Lin , Xiaogang Chen , Alexei Vladimirovich Davydov , Thomas J. Kenney , Eldad Perahia
IPC分类号： H04L27/28 , H04L25/03 , H04B15/00
CPC分类号： H04B7/0617 , H04B7/0413 , H04L1/0606 , H04L25/08 , H04L27/2626 , H04L27/2634 , H04L27/3444 , H04W52/10 , H04W52/146 , H04W52/36 , H04W72/082
摘要： Embodiments of an OFDM transmitter and method of reducing the effects of interference on subcarriers in an OFDM system by symbol loading are disclosed herein. A linear transformation is performed on a group of two or more input data symbols that are mapped to different signal dimensions to generate a corresponding two or more output data symbols. Each of the output data symbols has an increased number of constellation points. Each output data symbol is configured for transmission within one of the different signal dimensions. The linear transformation is configured so that each of the two or more output data symbols carry the information of each of the input data symbols of the group. This coding together of input data symbols that are mapped to different signal dimensions may provide improved reliability against fading and severe interference. The different signal dimensions may comprise a frequency, a time and/or a space dimension.
摘要翻译：本文公开了OFDM发射机的实施例和通过符号加载来减少OFDM系统中的干扰对子载波的影响的方法。对映射到不同信号尺寸的两个或更多个输入数据符号的一组进行线性变换，以生成对应的两个或更多个输出数据符号。每个输出数据符号具有增加的星座点数。每个输出数据符号被配置为在不同信号尺寸之一内传输。线性变换被配置为使得两个或更多个输出数据符号中的每一个携带组中的每个输入数据符号的信息。将映射到不同信号尺寸的输入数据符号进行编码可以提供改善的抗衰落和严重干扰的可靠性。不同的信号尺寸可以包括频率，时间和/或空间维度。

6. 发明申请

US20160072564A1 PARALLEL CHANNEL TRAINING IN MULTI-USER MULTIPLE-INPUT AND MULTIPLE-OUTPUT SYSTEM 有权
标题翻译：多用户多输入和多输出系统中的并行通道训练
公开(公告)号：US20160072564A1
公开(公告)日：2016-03-10
申请号：US14582332
申请日：2014-12-24
申请人： Qinghua Li , Xiaogang Chen , Huaning Niu , Robert Stacey , Yuan Zhu , Xintian E. Lin
发明人： Qinghua Li , Xiaogang Chen , Huaning Niu , Robert Stacey , Yuan Zhu , Xintian E. Lin
IPC分类号： H04B7/04 , H04W76/02 , H04W72/04 , G06N99/00 , H04B7/06
CPC分类号： H04B7/0452 , G06N99/005 , H04L5/0025 , H04L5/0051 , H04L27/2613 , H04W72/00
摘要： This disclosure describes systems, and methods related to parallel channel training in communication networks. A first computing device comprising one or more processors and one or more transceiver component may receive a first connection request from a second computing device, and a second connection request from a third computing device. The first computing device may determine a first training field associated with the first connection request and a second training field associated with the second request. The first computing device may send the first training field to the second computing device based at least in part on the first connection request and sending in parallel, the second training field to the third computing device based at least in part on the second connection request. The first computing device may establish a first spatial channel stream with the second computing device based at least in part on the first training field and a second spatial channel stream with the third computing device based at least in part on the second training field.
摘要翻译：本公开描述了与通信网络中的并行信道训练相关的系统和方法。包括一个或多个处理器和一个或多个收发器组件的第一计算设备可以从第二计算设备接收第一连接请求，并从第三计算设备接收第二连接请求。第一计算设备可以确定与第一连接请求相关联的第一训练场和与第二请求相关联的第二训练场。第一计算设备可以至少部分地基于第一连接请求将第一训练场发送到第二计算设备，并且至少部分地基于第二连接请求并行地发送第二训练场到第三计算设备。第一计算设备可以至少部分地基于第一训练场和第三计算设备的第二空间信道流至少部分地基于第二训练场来建立与第二计算设备的第一空间信道流。

7. 发明授权

US08873417B2 Techniques using differential precoding for highly correlated channels in wireless networks 有权
标题翻译：使用差分预编码技术在无线网络中高度相关的信道
公开(公告)号：US08873417B2
公开(公告)日：2014-10-28
申请号：US13591613
申请日：2012-08-22
申请人： Xiaogang Chen , Yuan Zhu , Qinghua Li , Xintian E. Lin , Yang-Seok Choi
发明人： Xiaogang Chen , Yuan Zhu , Qinghua Li , Xintian E. Lin , Yang-Seok Choi
IPC分类号： G01R31/08 , H04B7/04 , H04B7/06
CPC分类号： H04B7/0478 , H04B7/0465 , H04B7/0617 , H04B7/0639 , H04B7/0641
摘要： An embodiment of the present invention provides a method of using differential precoding feedback for correlated channels, comprising, transmitting by a mobile station (MS) as feedback an index angle for a differential discrete Fourier transform (DFT) codeword corresponding to a shift of a dominant beam represented by a base codeword, where the feedback corresponds to a precoding vector V(t)=Q({circumflex over (θ)}) for index angle {circumflex over (θ)}, where Q ⁡ ( θ ^ ) = [ 1 ⅇ j ⁢ ⁢ 2 ⁢ ⁢ π ⁢ ⁢ m / 32 ⅇ j ⁢ ⁢ 4 ⁢ ⁢ π ⁢ ⁢ m / 32 ⅇ j ⁢ ⁢ 6 ⁢ ⁢ π ⁢ ⁢ m / 32 ] and m=−16 cos({circumflex over (θ)}).
摘要翻译：本发明的一个实施例提供了一种使用用于相关信道的差分预编码反馈的方法，包括：由移动台（MS）作为对应于主导的移位的差分离散付里叶变换（DFT）码字的索引角的反馈，由基本码字表示的波束，其中反馈对应于用于索引角度（（θ））的预编码矢量V（t）= Q（{回旋（））），其中Q⁡（＆Thetas; ^ ）= [1ⅇj⁢2⁢＆pgr; ⁢m / 32ⅇj⁢4⁢＆pgr; 嗯m / 32ⅇj⁢6⁢＆pgr; ⁢m / 32]，m = -16 cos（{circum lex lex;;;;;））））}）

8. 发明申请

US20130272262A1 MULTI-ACCESS SCHEME AND SIGNAL STRUCTURE FOR D2D COMMUNICATIONS 有权
标题翻译： D2D通信的多路访问方案和信号结构
公开(公告)号：US20130272262A1
公开(公告)日：2013-10-17
申请号：US13729164
申请日：2012-12-28
申请人： Qinghua Li , Honggang Li , Huaning Niu , Yi Hsuan , Yuan Zhu , Xiaogang Chen , Jong-Kae Fwu , Alexei Davydov , Hujun Yin , Xintian E. Lin , Wendy C. Wong , Yujian Zhang
发明人： Qinghua Li , Honggang Li , Huaning Niu , Yi Hsuan , Yuan Zhu , Xiaogang Chen , Jong-Kae Fwu , Alexei Davydov , Hujun Yin , Xintian E. Lin , Wendy C. Wong , Yujian Zhang
IPC分类号： H04W74/08
CPC分类号： H04W74/0808 , H04L5/0001 , H04L5/0023 , H04L5/0037 , H04L5/0044 , H04L5/0048 , H04L5/0053 , H04L5/0064 , H04L5/0094 , H04L5/14 , H04L12/189 , H04W4/06 , H04W4/70 , H04W24/02 , H04W24/10 , H04W28/02 , H04W28/0268 , H04W28/08 , H04W36/0016 , H04W36/08 , H04W72/04 , H04W72/0406 , H04W72/042 , H04W72/085 , H04W74/0833 , H04W76/10 , H04W76/19 , Y02D70/00 , Y02D70/1224 , Y02D70/1242 , Y02D70/1262 , Y02D70/1264 , Y02D70/142 , Y02D70/144 , Y02D70/146 , Y02D70/164 , Y02D70/21 , Y02D70/24
摘要： A signal structure for use in D2D communications is described. In one embodiment, a preamble for automatic gain control at the receiver end is included in the transmitted signal. Techniques for scheduling of D2D transmissions using carrier sensing multiple access (CSMA) and a power control schemes for interference management are also described.
摘要翻译：描述了用于D2D通信的信号结构。在一个实施例中，在接收端的自动增益控制的前同步码包括在所发送的信号中。还描述了使用载波侦听多路访问（CSMA）调度D2D传输的技术和用于干扰管理的功率控制方案。

9. 发明授权

US08462864B2 OFDM transmitter and methods for reducing the effects of severe interference with symbol loading 有权
标题翻译： OFDM发射机和减少符号加载严重干扰影响的方法
公开(公告)号：US08462864B2
公开(公告)日：2013-06-11
申请号：US12889651
申请日：2010-09-24
申请人： Qinghua Li , Huaning Niu , Yuan Zhu , Xintian E. Lin , Xiaogang Chen , Alexei Vladimirovich Davydov , Thomas J. Kenney , Eldad Perahia
发明人： Qinghua Li , Huaning Niu , Yuan Zhu , Xintian E. Lin , Xiaogang Chen , Alexei Vladimirovich Davydov , Thomas J. Kenney , Eldad Perahia
IPC分类号： H04L27/28 , H04L25/03 , H04B15/00
CPC分类号： H04B7/0617 , H04B7/0413 , H04L1/0606 , H04L25/08 , H04L27/2626 , H04L27/2634 , H04L27/3444 , H04W52/10 , H04W52/146 , H04W52/36 , H04W72/082
摘要： Embodiments of an OFDM transmitter and method of reducing the effects of interference on subcarriers in an OFDM system by symbol loading are disclosed herein. A linear transformation is performed on a group of two or more input data symbols to generate a corresponding two or more output data symbols. Each of the output data symbols has an increased number of constellation points and are configured for transmission within one of the different signal dimensions using two or more antennas. Each of the two or more output data symbols carry the information of each of the input data symbols of the group. This coding together of input data symbols that are mapped to different signal dimensions may provide improved reliability against fading and severe interference. The different signal dimensions may comprise a frequency, a time and/or a space dimension.
摘要翻译：本文公开了OFDM发射机的实施例和通过符号加载来减少OFDM系统中的干扰对子载波的影响的方法。对一组两个或更多个输入数据符号执行线性变换，以生成相应的两个或更多个输出数据符号。每个输出数据符号具有增加的星座点数量，并且被配置为使用两个或更多个天线在不同信号维度之一内传输。两个或更多个输出数据符号中的每一个携带该组的每个输入数据符号的信息。将映射到不同信号尺寸的输入数据符号进行编码可以提供改善的抗衰落和严重干扰的可靠性。不同的信号尺寸可以包括频率，时间和/或空间维度。

10. 发明申请

US20130243118A1 MOBILE DEVICE TRANSMITTER AND METHODS FOR TRANSMITTING SIGNALS IN DIFFERENT SIGNAL DIMENSIONS FOR 3GPP LTE 审中-公开
标题翻译：移动设备发射机和用于在3GPP LTE的不同信号尺寸中发送信号的方法
公开(公告)号：US20130243118A1
公开(公告)日：2013-09-19
申请号：US13895555
申请日：2013-05-16
申请人： Qinghua Li , Huaning Niu , Yuan Zhu , Xintian E. Lin , Xiaogang Chen , Alexei Davydov , Thomas J. Kenney , Eldad Perahia
发明人： Qinghua Li , Huaning Niu , Yuan Zhu , Xintian E. Lin , Xiaogang Chen , Alexei Davydov , Thomas J. Kenney , Eldad Perahia
IPC分类号： H04L25/08
CPC分类号： H04B7/0617 , H04B7/0413 , H04L1/0606 , H04L25/08 , H04L27/2626 , H04L27/2634 , H04L27/3444 , H04W52/10 , H04W52/146 , H04W52/36 , H04W72/082
摘要： Embodiments of a mobile device transmitter and methods for transmitting signals in different signal dimensions are generally disclosed herein. The mobile device transmitter comprises a mapper to map a block of two or more input modulation symbols to different signal dimensions comprising two or more spatial dimensions, and linear transform circuitry to perform a linear transform on the block of mapped input modulation symbols to generate a block of preceded complex-valued output symbols such that each output symbol carries some information of more than one input modulation symbol. The mobile device also comprises transmitter circuitry to generate time-domain signals from the blocks of precoded complex-valued output symbols for each of the spatial dimensions for transmission using the two or more antennas. The precoded complex-valued output symbols are mapped to different signal dimensions comprising at least different frequency dimensions prior to transmission.
摘要翻译：移动设备发射机的实施例和用于在不同信号尺寸上传输信号的方法一般在此公开。移动设备发射机包括映射器，以将两个或更多个输入调制符号的块映射到包括两个或更多个空间维度的不同信号维度，以及线性变换电路，用于对映射的输入调制符号块执行线性变换以产生块之前的复值输出符号，使得每个输出符号携带多于一个输入调制符号的一些信息。移动设备还包括发射机电路，用于根据用于使用两个或更多个天线进行传输的每个空间维度，从预编码的复值输出符号块生成时域信号。预编码的复值输出符号被映射到在传输之前至少包括不同频率尺寸的不同信号尺寸。

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