专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

141. 发明申请

US20160149617A1 QUANTIZED EIGEN BEAMS FOR CONTROLLING ANTENNA ARRAY ELEMENTS IN A WIRELESS NETWORK 有权
公开(公告)号：US20160149617A1
公开(公告)日：2016-05-26
申请号：US14695800
申请日：2015-04-24
申请人： Yuan Zhu , Qinghua Li , Yushu Zhang , Debdeep Chatterjee , Gang Xiong
发明人： Yuan Zhu , Qinghua Li , Yushu Zhang , Debdeep Chatterjee , Gang Xiong
IPC分类号： H04B7/04 , H04B7/06 , H04L5/00
CPC分类号： H04B7/043 , H04B7/0478 , H04B7/0626 , H04B7/0632 , H04L5/0007 , H04L5/0025 , H04L5/0048 , H04L5/005 , H04L5/0057
摘要： A user equipment (UE) may communicate channel state information in a wireless network. The UE may include transceiver circuitry to receive orthogonal frequency division multiple access (OFDMA) signals from an Enhanced node B (eNB). The UE may include processing circuitry to derive one or more principal eigen beams from the received OFDMA signals. The principal eigen beams may have a rank greater than or equal to one. The processing circuitry may derive quantized eigen beams from the principal eigen beams. The processing circuitry may select, in response to the quantized eigen beams, a subset of available antenna ports on the eNB for receiving from the eNB and transmitting to the eNB. The UE may communicate to the eNB a bit pattern of the quantized eigen beams and at least one of a wideband channel quality indicator (CQI) or a subband CQI conditioned on the quantized eigen beams.

142. 发明申请

US20160142227A1 SYSTEMS AND METHODS FOR CARRIER FREQUENCY OFFSET ESTIMATION FOR LONG TRAINING FIELDS 有权
标题翻译：用于长期训练场的载波频率偏差估计的系统和方法
公开(公告)号：US20160142227A1
公开(公告)日：2016-05-19
申请号：US14752050
申请日：2015-06-26
申请人： Qinghua Li , Xiaogang Chen , Yuan Zhu , Robert Stacey
发明人： Qinghua Li , Xiaogang Chen , Yuan Zhu , Robert Stacey
IPC分类号： H04L25/02 , H04L27/00 , H04L27/26
CPC分类号： H04L25/0226 , H04L5/0016 , H04L27/0014 , H04L27/2675 , H04L27/34
摘要： This disclosure describes systems, and methods related to determining carrier frequency offset of a wireless communication channel based on a determined phase difference. In some embodiments, an access point is caused to receive one or more streams comprising one or more encoded long training field (LTF) symbols over the wireless communication channel from one or more user devices. The access point then determines a first phase of the wireless communication channel upon receipt of a first LTF symbol, and determines a second phase of the wireless communication channel upon receipt of a second LTF symbol. The access point next determines a phase difference between the first phase and the second phase. Based on the determined phase difference, the access point determines a carrier frequency offset of the wireless communication channel. Lastly, the access point modifies the wireless communication channel based at least in part on the determined CFO.
摘要翻译：本公开描述了基于确定的相位差来确定无线通信信道的载波频率偏移的系统和方法。在一些实施例中，使得接入点在一个或多个用户设备的无线通信信道上接收包括一个或多个经编码的长训练场（LTF）符号的一个或多个流。然后，接入点在接收到第一LTF符号时确定无线通信信道的第一阶段，并且在接收到第二LTF符号时确定无线通信信道的第二阶段。接下来的接入点确定第一阶段和第二阶段之间的相位差。基于确定的相位差，接入点确定无线通信信道的载波频率偏移。最后，接入点至少部分地基于所确定的CFO来修改无线通信信道。

143. 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。

144. 发明授权

US09225478B2 Supporting measurments and feedback for 3D MIMO with data transmission optimization 有权
标题翻译：支持3D MIMO与数据传输优化的测量和反馈
公开(公告)号：US09225478B2
公开(公告)日：2015-12-29
申请号：US13728778
申请日：2012-12-27
申请人： Xiaogang Chen , Alexei Davydov , Qinghua Li , Yuan Zhu , Gregory V. Morozov , Jong-Kae Fwu , Seunghee Han , Huaning Niu , Rongzhen Yang
发明人： Xiaogang Chen , Alexei Davydov , Qinghua Li , Yuan Zhu , Gregory V. Morozov , Jong-Kae Fwu , Seunghee Han , Huaning Niu , Rongzhen Yang
IPC分类号： H04W4/00 , H04L1/18 , H04W28/08 , H04W24/10 , H04W72/04 , H04W52/02 , H04W72/00 , H04W92/02 , H04L5/00 , H04W36/22 , H04L5/14 , H04W48/12 , H04W68/00 , H04W88/08
CPC分类号： H04L1/1861 , H04L1/0025 , H04L1/0026 , H04L1/1628 , H04L1/1812 , H04L1/1854 , H04L1/1887 , H04L5/0048 , H04L5/0053 , H04L5/0055 , H04L5/0073 , H04L5/14 , H04W4/70 , H04W24/10 , H04W28/0205 , H04W28/08 , H04W36/22 , H04W48/12 , H04W52/0206 , H04W52/0209 , H04W52/0212 , H04W52/0245 , H04W52/383 , H04W68/00 , H04W72/005 , H04W72/0413 , H04W72/042 , H04W72/0446 , H04W72/046 , H04W88/08 , H04W92/02 , Y02D70/00 , Y02D70/1222 , Y02D70/1224 , Y02D70/1242 , Y02D70/1262 , Y02D70/1264 , Y02D70/142 , Y02D70/144 , Y02D70/146 , Y02D70/164 , Y02D70/21 , Y02D70/22 , Y02D70/23 , Y02D70/24 , Y02D70/25 , Y02E40/62
摘要： Technology is discussed for supporting wireless communication paths from an antenna array with a vertical directional component. Examples reduce training feedback for increased numbers of communication paths by only reporting on a subset of Reference Signals (RSs) provided for various vertical beam configurations. Additional examples reduce feedback with virtual measurements based on a difference between RS measurements. One such measurement can come from full set of RSs for a reference beam configuration and another from a partial set of RSs for an additional beam configuration. Such virtual measurements can also be based on cross correlation for beamforming weights associated with the two configurations. Several examples of preparing and sending measurement reports consistent with Third Generation Partnership Project (3GPP) Long Term Evolution (LTE) standards are discussed. The supporting technology also increases diversity and reduces a power differential between spatially multiplexed layers transmitting a common codeword.
摘要翻译：讨论了用于支持具有垂直方向分量的天线阵列的无线通信路径的技术。通过仅针对为各种垂直波束配置提供的参考信号（RS）的子集进行报告，示例减少了增加通信路径数量的训练反馈。另外的示例基于RS测量之间的差异来减少虚拟测量的反馈。一个这样的测量可以来自用于参考光束配置的全套RS，另一个来自用于附加光束配置的部分RS组。这种虚拟测量还可以基于与两种配置相关联的波束成形权重的互相关。讨论了与第三代合作伙伴计划（3GPP）长期演进（LTE）标准一致的准备和发送测量报告的几个示例。支持技术还增加了分集并且降低了发送公共码字的空间复用层之间的功率差异。

145. 发明申请

US20150029875A1 DOWNTILT SELECTION IN A FULL DIMENSIONAL MULTIPLE-INPUT MULTIPLE-OUTPUT SYSTEM 有权
标题翻译：全尺寸多输入多输出系统中的停机选择
公开(公告)号：US20150029875A1
公开(公告)日：2015-01-29
申请号：US14231158
申请日：2014-03-31
申请人： Yuan Zhu , Qinghua Li , Xiaogang Chen , Feng Xue , Hooman Shirani-Mehr
发明人： Yuan Zhu , Qinghua Li , Xiaogang Chen , Feng Xue , Hooman Shirani-Mehr
IPC分类号： H04W24/08 , H04W72/08
CPC分类号： H04W72/082 , H01Q1/243 , H01Q3/00 , H04B7/0632 , H04B7/0686 , H04B7/0695 , H04B17/318 , H04J11/0023 , H04L5/0007 , H04L5/0094 , H04L5/14 , H04L69/16 , H04W4/70 , H04W16/28 , H04W24/02 , H04W24/08 , H04W24/10 , H04W28/12 , H04W36/0066 , H04W36/0072 , H04W36/0083 , H04W36/30 , H04W52/0209 , H04W72/0413 , H04W72/042 , H04W72/0446 , H04W74/0833 , H04W76/10 , H04W76/11 , H04W76/14 , H04W76/27 , H04W84/045 , H04W84/12 , H04W84/18 , H04W88/06 , H04W88/08 , Y02D70/00 , Y02D70/1224 , Y02D70/1226 , Y02D70/1242 , Y02D70/1244 , Y02D70/1246 , Y02D70/1262 , Y02D70/1264 , Y02D70/142 , Y02D70/144 , Y02D70/146 , Y02D70/162 , Y02D70/164 , Y02D70/166 , Y02D70/168 , Y02D70/21 , Y02D70/22 , Y02D70/23 , Y02D70/24 , Y02D70/25 , Y02D70/444
摘要： A technology for an enhanced node B (eNode B) in a cellular network that is operable to determine downtilt using full dimensional (FD) multiple-input multiple-output (MIMO). A plurality of orthogonal frequency division multiple access (OFDMA) signals can be transmitted, wherein each transmitted OFDMA signal is transmitted with a selected downtilt angle from a two dimensional antenna array of the eNode B. Reference signal received power (RSRP) feedback information can be received from a UE for each of transmitted OFDMA signals at the selected downtilt angles. Received signal strength indicator (RSSI) feedback information can be received from the UE. A reference signal received quality (RSRQ) can be calculated for each of the selected antennas angles using the RSRP feedback information and the RSSI feedback information. A downtilt angle can be selected for transmitting data from the eNode B with a highest signal to interference plus noise ratio (SINR).
摘要翻译：蜂窝网络中用于增强节点B（eNode B）的技术，其可操作以使用全维（FD）多输入多输出（MIMO）来确定下倾斜。可以发送多个正交频分多址（OFDMA）信号，其中每个发送的OFDMA信号以来自eNode B的二维天线阵列的选定的下倾斜角发送。参考信号接收功率（RSRP）反馈信息可以是在所选择的下倾角处从UE发送的每个发送的OFDMA信号。可以从UE接收到接收信号强度指示符（RSSI）反馈信息。可以使用RSRP反馈信息和RSSI反馈信息为每个所选择的天线角度计算参考信号接收质量（RSRQ）。可以选择下倾角，以便从具有最高信号到干扰加噪声比（SINR）的eNode B传输数据。

146. 发明申请

US20150003338A1 METHOD FOR EFFICIENT CHANNEL ESTIMATION AND BEAMFORMING IN FDD SYSTEM BY EXPLOITING UPLINK-DOWNLINK CORRESPONDENCE 有权
标题翻译： FDD系统中有效通道估计和射束的方法，通过开发上下文相关性
公开(公告)号：US20150003338A1
公开(公告)日：2015-01-01
申请号：US14109211
申请日：2013-12-17
申请人： Feng Xue , Qinghua Li , Yuan Zhu
发明人： Feng Xue , Qinghua Li , Yuan Zhu
IPC分类号： H04W72/02
CPC分类号： H04W72/0446 , H04B7/024 , H04B7/0452 , H04B7/0626 , H04J11/005 , H04L5/1469 , H04L12/18 , H04L25/021 , H04L25/0242 , H04L25/03891 , H04W8/005 , H04W16/14 , H04W24/10 , H04W36/02 , H04W48/12 , H04W48/16 , H04W56/0005 , H04W68/04 , H04W72/02 , H04W72/0406 , H04W72/042 , H04W74/004 , H04W74/006 , H04W74/0816 , H04W76/10 , H04W76/19 , H04W76/30 , H04W84/045 , H04W84/18 , H04W88/02 , H04W88/06
摘要： A method for selecting at least one parameter for downlink data transmission with a mobile user equipment. The method is executable by a wireless communication base station having multiple antennas configured to communicate wirelessly with the mobile user equipment. The method receives an uplink probing signal from the mobile user equipment. The method determines a plurality of angles of arrival for a corresponding plurality of paths between the mobile user equipment and the multiple antennas. The method transmits a plurality of downlink probing signals directionally toward corresponding angles of arrival in the plurality of angles of arrival. Each downlink probing signal is a virtual antenna port with respect to the mobile user equipment. The method receives channel state information. The method composes at least one of a rank indicator (RI), precoding matrix indicator (PMI), or modulating and coding scheme (MCS) for downlink data transmission to the mobile user equipment.
摘要翻译：一种用于通过移动用户设备选择用于下行链路数据传输的至少一个参数的方法。该方法可由具有被配置为与移动用户设备进行无线通信的多个天线的无线通信基站执行。该方法从移动用户设备接收上行链路探测信号。该方法确定移动用户设备和多个天线之间的相应多个路径的多个到达角度。该方法将多个下行链路探测信号定向地朝向多个到达角中的相应到达角发射。每个下行链路探测信号是相对于移动用户设备的虚拟天线端口。该方法接收信道状态信息。该方法构成用于下行链路数据传输到移动用户设备的秩指示符（RI），预编码矩阵指示符（PMI）或调制和编码方案（MCS）中的至少一个。

147. 发明授权

US08879667B2 Layer shifting in open loop multiple-input, multiple-output communications 有权
标题翻译：开环多输入多输出通信中的层移位
公开(公告)号：US08879667B2
公开(公告)日：2014-11-04
申请号：US13503837
申请日：2011-11-30
申请人： Xiaogang Chen , Yuan Zhu , Jong-Kae Fwu , Qinghua Li
发明人： Xiaogang Chen , Yuan Zhu , Jong-Kae Fwu , Qinghua Li
IPC分类号： H04L27/36 , H04W52/24 , H04W24/00 , H04L27/34 , H04W72/04 , H04L1/00 , H04W52/02 , H04B15/00 , H04B7/06 , H04L5/00 , H04L1/06 , H04W8/02
CPC分类号： H04W72/042 , H04B7/0697 , H04B15/00 , H04L1/0025 , H04L1/0038 , H04L1/0041 , H04L1/0045 , H04L1/06 , H04L5/0037 , H04L5/14 , H04L27/34 , H04L27/362 , H04W4/70 , H04W8/02 , H04W24/00 , H04W24/08 , H04W52/0209 , H04W52/0212 , H04W52/0251 , H04W52/0258 , H04W52/143 , H04W52/242 , H04W52/244 , H04W52/325 , H04W72/02 , H04W72/04 , H04W72/0446 , H04W72/082 , H04W72/1215 , H04W72/1278 , H04W76/19 , H04W76/28 , H04W84/042 , H04W88/06 , Y02D70/00 , Y02D70/1224 , Y02D70/1226 , Y02D70/1242 , Y02D70/1244 , Y02D70/1262 , Y02D70/1264 , Y02D70/142 , Y02D70/144 , Y02D70/146 , Y02D70/164 , Y02D70/168 , Y02D70/21 , Y02D70/23 , Y02D70/24 , Y02D70/444
摘要： Embodiments of the present disclosure describe methods, apparatuses, and systems related to use of interphase/quadrature component layer shifting in open loop multiple-input, multiple-output communications. Other embodiments may be described and/or claimed.
摘要翻译：本公开的实施例描述了在开环多输入多输出通信中使用相间/正交分量层移位相关的方法，装置和系统。可以描述和/或要求保护其他实施例。

148. 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;;;;;））））}）

149. 发明申请

US20140247860A1 CODEBOOK AND CODEBOOK SEARCH 审中-公开
标题翻译： CODEBOOK和CODEBOOK搜索
公开(公告)号：US20140247860A1
公开(公告)日：2014-09-04
申请号：US14193509
申请日：2014-02-28
申请人： Yuan Zhu , Qinghua Li , Xiaogang Chen , Jong-Kae Fwu
发明人： Yuan Zhu , Qinghua Li , Xiaogang Chen , Jong-Kae Fwu
IPC分类号： H04B7/04 , H04B1/38
CPC分类号： H04W72/005 , H04B7/0452 , H04B7/0486 , H04B7/0626 , H04J3/12 , H04L5/0037 , H04L12/184 , H04L25/03 , H04L45/74 , H04L65/4038 , H04L65/608 , H04L65/80 , H04L67/02 , H04M15/8044 , H04W4/06 , H04W4/10 , H04W4/80 , H04W12/02 , H04W12/04 , H04W16/14 , H04W24/02 , H04W24/08 , H04W24/10 , H04W36/14 , H04W36/165 , H04W36/22 , H04W36/30 , H04W48/10 , H04W48/20 , H04W52/244 , H04W72/0406 , H04W72/044 , H04W72/085 , H04W72/087 , H04W72/10 , H04W76/10 , H04W76/14 , H04W76/20 , H04W76/23 , H04W76/27 , H04W76/30 , H04W84/18 , H04W88/02 , H04W88/06 , H04W88/08 , Y02B70/32 , Y02D70/00 , Y02D70/1224 , Y02D70/1242 , Y02D70/1244 , Y02D70/1246 , Y02D70/1262 , Y02D70/1264 , Y02D70/142 , Y02D70/144 , Y02D70/146 , Y02D70/162 , Y02D70/164 , Y02D70/166 , Y02D70/168 , Y02D70/21 , Y02D70/22 , Y02D70/23 , Y02D70/26 , Y02D70/444
摘要： Briefly, in accordance with one or more embodiments, a codebook used to provide a precoding matrix indicator and/or channel state information comprises one or more rank-1 codewords and at least one or more rank-2 codewords exhibiting a nesting property with the rank-1 codewords, and one or more rank-2 codewords not exhibiting a nesting property with the rank-1 codewords. Further, the rank-1 codewords may include at least some Discrete Fourier Transform (DFT) vectors, and at least some vectors that are optimized for a cross polarize array of antennas if the array of antennas is cross polarized. The codebook may be utilized for single-user multiple-input, multiple-output (SU-MIMO) or multi-user multiple-input, multiple-output (MU-MIMO).
摘要翻译：简而言之，根据一个或多个实施例，用于提供预编码矩阵指示符和/或信道状态信息的码本包括一个或多个秩1码字和表现具有等级的嵌套属性的至少一个或多个秩2码字 -1个码字，以及一个或多个不具有等级-1码字的嵌套特性的2级码字。此外，秩-1码字可以包括至少一些离散傅立叶变换（DFT）向量，以及如果天线阵列是交叉极化的，则对于天线的交叉极化阵列而优化的至少一些矢量。该码本可以用于单用户多输入多输出（SU-MIMO）或多用户多输入多输出（MU-MIMO）。

150. 发明授权

US08711907B2 PMI feedback with codebook interpolation 有权
标题翻译： PMI反馈与码本插值
公开(公告)号：US08711907B2
公开(公告)日：2014-04-29
申请号：US13077905
申请日：2011-03-31
申请人： Yuan Zhu , Xiaogang Chen , Qinghua Li
发明人： Yuan Zhu , Xiaogang Chen , Qinghua Li
IPC分类号： H04B1/38
CPC分类号： H04L25/03343 , H04B7/063 , H04B7/0639 , H04L1/0079 , H04L5/0007 , Y02D70/10
摘要： Various embodiments of this disclosure may describe apparatuses, methods, and systems for interpolation of precoding matrixes to increase feedback accuracy of the channel state information (CSI) feedback in a wireless communication network. Other embodiments may also be disclosed or claimed.
摘要翻译：本公开的各种实施例可以描述用于内插预编码矩阵的装置，方法和系统，以增加无线通信网络中的信道状态信息（CSI）反馈的反馈精度。其他实施例也可以被公开或要求保护。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式