专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

81. 发明授权

US09455810B2 On the definition of the resource block in OFDMA/UL MUMIMO in HEW 有权
标题翻译：关于HEW中OFDMA / UL MUMIMO中资源块的定义
公开(公告)号：US09455810B2
公开(公告)日：2016-09-27
申请号：US14497688
申请日：2014-09-26
申请人： Xiaogang Chen , Qinghua Li , Robert Stacey , Yuan Zhu
发明人： Xiaogang Chen , Qinghua Li , Robert Stacey , Yuan Zhu
IPC分类号： H04Q7/00 , H04L5/00
CPC分类号： H04W72/0446 , H04B7/0452 , H04L5/0007 , H04L5/0023 , H04L5/0044 , H04L5/0046 , H04L5/0048
摘要： Techniques for resource block allocation in a multi-user MIMO High Efficiency WLAN system are provided. Specifically, teachings that when taken alone or together, provide a device or a group of devices with an improved resource allocation for the reduction of usable tone waste, are presented. The present disclosure includes a system that provides a user with a technique allocating data tones prior to the encapsulation unit or overhead tones on a resource block unit. Further, the total allocated bandwidth can be reduced prior resource allocation to overcome modulation and coding scheme downgrading caused by severe puncturing. Alternatively, only band edge basic resource blocks are reduced to account for overhead tones which largely reside on band edges.
摘要翻译：提供了多用户MIMO高效WLAN系统中的资源块分配技术。具体地说，当单独或一起采取提供具有改进的资源分配的设备或一组设备以减少可用的音调浪费时的教导。本公开包括向用户提供在资源块单元之前在封装单元或开销音调之前分配数据音调的技术的系统。此外，可以在先前的资源分配之前减少总分配带宽，以克服由严重穿孔引起的调制和编码方案降级。或者，仅减少频带边缘基本资源块以考虑大部分驻留在频带边缘上的开销音调。

82. 发明申请

US20160142123A1 EVOLVED NODE-B, USER EQUIPMENT, AND METHODS FOR CHANNEL QUALITY INDICATOR (CQI) FEEDBACK 有权
标题翻译：演进的节点B，用户设备和信道质量指示符（CQI）反馈方法
公开(公告)号：US20160142123A1
公开(公告)日：2016-05-19
申请号：US14670692
申请日：2015-03-27
申请人： Yushu Zhang , Yuan Zhu , Qinghua Li , Xiaogang Chen
发明人： Yushu Zhang , Yuan Zhu , Qinghua Li , Xiaogang Chen
IPC分类号： H04B7/06 , H04B7/04
CPC分类号： H04B7/0632 , H04B7/0452 , H04B7/0639 , H04B7/0647 , H04W84/042
摘要： Embodiments of User Equipment (UE), an Evolved Node-B (eNB), and methods for channel quality indicator (CQI) feedback are disclosed herein. An aperiodic CQI type parameter received at the UE may indicate a CQI type for use in a determination of an aperiodic CQI based on signals received from the eNB. Channel-state information reference signals (CSI-RS) may be used when single-user multiple-input multiple-output (SU-MIMO) signals are received. Physical downlink shared channel (PDSCH) blocks may be used when multi-user multiple-input multiple-output (MU-MIMO) signals are received. The aperiodic CQI may be transmitted to the eNB as part of an aperiodic CQI measurement report. In addition, periodic CQI measurement reports may also be transmitted to the eNB and may include periodic CQIs that are based on CSI-RS received at the UE.
摘要翻译：本文公开了用户设备（UE），演进节点B（eNB）以及信道质量指示符（CQI）反馈的方法的实施例。在UE处接收到的非周期性CQI类型参数可以基于从eNB接收的信号来指示用于确定非周期性CQI的CQI类型。当接收到单用户多输入多输出（SU-MIMO）信号时，可以使用信道状态信息参考信号（CSI-RS）。当接收到多用户多输入多输出（MU-MIMO）信号时，可以使用物理下行链路共享信道（PDSCH）块。作为非周期性CQI测量报告的一部分，非周期性CQI可以被发送到eNB。此外，也可以向eNB发送周期性CQI测量报告，并且可以包括基于在UE处接收的CSI-RS的周期性CQI。

83. 发明申请

US20160112851A1 SYSTEMS, METHODS, AND DEVICES FOR EXTENDING RANGE OF WIRELESS NETWORKS 有权
标题翻译：用于扩展无线网络范围的系统，方法和设备
公开(公告)号：US20160112851A1
公开(公告)日：2016-04-21
申请号：US14579778
申请日：2014-12-22
申请人： Qinghua Li , Xiaogang Chen , Jeongho Jeon , Huaning Niu , Yang Tang , Yuan Zhu , Hwan-Joon Kwon
发明人： Qinghua Li , Xiaogang Chen , Jeongho Jeon , Huaning Niu , Yang Tang , Yuan Zhu , Hwan-Joon Kwon
IPC分类号： H04W4/18 , H04L29/06
CPC分类号： H04W4/18 , H04L1/0059 , H04L1/0071 , H04L1/0079 , H04L1/0088 , H04L1/08 , H04L5/0007 , H04L27/2602 , H04L27/2613 , H04L27/2647 , H04L69/18 , H04L69/22 , H04W84/12
摘要： Example systems, methods, and devices for extending range of WiFi networks are discussed. More specifically, methods for extending range of a Wi-Fi network are disclosed. The method may include the operations of appending, by a network device, one or more codebits to one or more original codebits or coded symbols, sending, by the network device, the original codebits or coded symbols and the appended codebits to an interleaver or a constellation mapper for transmission. The original codebits or coded symbols and the appended codebits may be sent over a plurality of subcarriers. Methods, apparatus, and systems described herein can be applied to 802.11ax or any other wireless standard.
摘要翻译：讨论了用于扩展WiFi网络范围的示例系统，方法和设备。更具体地，公开了用于扩展Wi-Fi网络的范围的方法。该方法可以包括由网络设备将一个或多个码位附加到一个或多个原始码位或编码符号的操作，由网络设备将原始码位或编码符号和所附加的码位发送到交织器或星座映射器用于传输。可以在多个子载波上发送原始码位或编码符号和附加的码位。本文描述的方法，装置和系统可以应用于802.11ax或任何其它无线标准。

84. 发明授权

US09226278B2 Enhanced physical downlink control channel (ePDCCH) 有权
标题翻译：增强物理下行链路控制信道（ePDCCH）
公开(公告)号：US09226278B2
公开(公告)日：2015-12-29
申请号：US13598320
申请日：2012-08-29
申请人： Xiaogang Chen , Yuan Zhu , Qinghua Li
发明人： Xiaogang Chen , Yuan Zhu , Qinghua Li
IPC分类号： H04W72/04 , H04W72/08 , H04W52/02 , H04L5/14 , H04W72/12 , H04W76/04 , H04W24/00 , H04W24/02 , H04N21/258 , H04N21/414 , H04N21/6405 , H04N21/6408 , H04W4/06 , H04L5/00 , H04L12/18 , H04L29/06 , H04W28/02 , H04L1/18 , H04W52/14
CPC分类号： H04L5/1446 , H04J11/0073 , H04L1/0033 , H04L1/1635 , H04L1/1812 , H04L1/1819 , H04L1/1825 , H04L1/1854 , H04L1/1864 , H04L1/1877 , H04L1/1887 , H04L1/189 , H04L1/1896 , H04L5/001 , H04L5/0053 , H04L5/0055 , H04L5/0073 , H04L5/14 , H04L5/1438 , H04L5/1469 , H04L12/189 , H04L12/2854 , H04L47/283 , H04L65/601 , H04L67/02 , H04L67/2842 , H04N21/25841 , H04N21/41407 , H04N21/6405 , H04N21/6408 , H04W4/06 , H04W24/00 , H04W24/02 , H04W28/0236 , H04W28/0268 , H04W28/0278 , H04W52/02 , H04W52/0206 , H04W52/0209 , H04W52/0229 , H04W52/0235 , H04W52/143 , H04W52/243 , H04W72/04 , H04W72/0406 , H04W72/0413 , H04W72/042 , H04W72/0426 , H04W72/0446 , H04W72/048 , H04W72/082 , H04W72/1205 , H04W72/1242 , H04W72/1268 , H04W72/1273 , H04W72/1284 , H04W74/085 , H04W76/27 , H04W76/28 , Y02D70/00 , Y02D70/1224 , Y02D70/1242 , Y02D70/1244 , Y02D70/1246 , Y02D70/1262 , Y02D70/1264 , Y02D70/142 , Y02D70/144 , Y02D70/146 , Y02D70/164 , Y02D70/21 , Y02D70/22 , Y02D70/23 , Y02D70/24
摘要： Technology for transmitting a distributed control channel element (CCE) for an enhanced physical downlink control channel (ePDCCH) and a localized CCE in a physical resource block (PRB) pair from a node and technology for physical downlink shared channel (PDSCH) physical resource block (PRB) allocation with at least one enhanced physical downlink control channel (ePDCCH) at a wireless device is disclosed. One method can include a node precoding at least one distributed CCE and at least one localized CCE for the PRB pair. The node can transmit the at least one distributed CCE for transmit diversity using at least two user equipment-specific reference signal (UERS) ports and transmitting the at least one localized CCE in the PRB pair. The at least two UERS ports can be used to transmit two CCEs.
摘要翻译：用于从用于物理下行链路共享信道（PDSCH）物理资源块的节点和技术发送用于物理资源块（PRB）对中的增强物理下行链路控制信道（ePDCCH）和局部CCE的分布式控制信道元素（CCE）的技术（PRB）分配被公开在无线设备处的至少一个增强物理下行链路控制信道（ePDCCH）。一种方法可以包括对PRB对至少一个分布式CCE和至少一个局部CCE进行预编码的节点。节点可以使用至少两个用户设备专用参考信号（UERS）端口来发射用于发射分集的至少一个分布式CCE，并且在PRB对中发送至少一个局部CCE。至少两个UERS端口可用于传输两个CCE。

85. 发明申请

US20150351081A1 USER EQUIPMENT AND METHOD FOR DYNAMIC NON-ORTHOGONAL MULTIPLE ACCESS COMMUNICATION 有权
标题翻译：动态非正交多功能通信的用户设备和方法
公开(公告)号：US20150351081A1
公开(公告)日：2015-12-03
申请号：US14578016
申请日：2014-12-19
申请人： Yuan Zhu , Fangze Tu , Qinghua Li , Xiaogang Chen
发明人： Yuan Zhu , Fangze Tu , Qinghua Li , Xiaogang Chen
IPC分类号： H04W72/04
CPC分类号： H04J11/003 , H04L5/0037 , H04L5/0044 , H04L5/0053 , H04W52/04 , H04W52/346
摘要： Embodiments pertain to systems, methods, and component devices for dynamic non-orthogonal multiple access (NOMA) communications. A first example embodiment includes user equipment (UE) configured to receive a first downlink control indicator (DCI) from an evolved node B (eNB) and process the first subframe as a first higher power NOMA subframe in response to a first power ratio signal. The DCI includes the first power ratio signal for a first NOMA subframe. The UE may then receive, from the eNB, a second DCI, the second DCI comprising a second power ratio signal for a second subframe and process, by the UE, the second subframe as a second lower power NOMA subframe in response to the second power ratio signal. Additional embodiments may further use another DCI with a third power ratio signal to configure the UE to receive orthogonal multiple access (OMA) communications.
摘要翻译：实施例涉及用于动态非正交多址（NOMA）通信的系统，方法和组件设备。第一示例实施例包括被配置为从演进节点B（eNB）接收第一下行链路控制指示符（DCI）并响应于第一功率比信号将第一子帧作为第一较高功率NOMA子帧进行处理的用户设备（UE）。 DCI包括用于第一NOMA子帧的第一功率比信号。然后，UE可以从eNB接收第二DCI，第二DCI包括用于第二子帧的第二功率比信号，并且由UE响应于第二功率处理作为第二较低功率NOMA子帧的第二子帧比率信号。另外的实施例还可以使用具有第三功率比信号的另一个DCI来配置UE接收正交多址（OMA）通信。

86. 发明授权

US09113489B2 Geographically isolated antennas 有权
标题翻译：地理上隔离的天线
公开(公告)号：US09113489B2
公开(公告)日：2015-08-18
申请号：US13996694
申请日：2012-03-30
申请人： Xiaogang Chen , Yuan Zhu , Qinghua Li
发明人： Xiaogang Chen , Yuan Zhu , Qinghua Li
IPC分类号： H04W72/12 , H04B7/04 , H04W52/02 , H04L12/891 , H04W52/04 , H04B7/06 , H04L5/00 , H04W72/04 , H04W4/08 , H04W36/00 , H04W28/04 , H04W4/06 , H04W72/00 , H04W76/04 , H04L12/18
CPC分类号： H04W52/0222 , H04B7/024 , H04B7/0417 , H04B7/0456 , H04B7/0613 , H04B7/0615 , H04B7/0619 , H04L5/0032 , H04L5/0037 , H04L12/189 , H04L25/0204 , H04L45/245 , H04L47/41 , H04W4/06 , H04W4/08 , H04W28/10 , H04W36/0005 , H04W48/12 , H04W48/16 , H04W48/18 , H04W52/0235 , H04W52/04 , H04W52/146 , H04W52/244 , H04W52/365 , H04W52/54 , H04W72/005 , H04W72/042 , H04W72/0426 , H04W72/0446 , H04W72/082 , H04W72/1215 , H04W72/1278 , H04W72/1294 , H04W76/28 , H04W76/34 , H04W76/40 , H04W84/042 , Y02D70/00 , Y02D70/1222 , Y02D70/1224 , Y02D70/1226 , Y02D70/1242 , Y02D70/1244 , Y02D70/1246 , Y02D70/1262 , Y02D70/1264 , Y02D70/142 , Y02D70/144 , Y02D70/146 , Y02D70/162 , Y02D70/164 , Y02D70/168 , Y02D70/21 , Y02D70/23 , Y02D70/24 , Y02D70/444
摘要： Briefly, in accordance with one or more embodiments, a base transceiver station having a first set of antennas and a second set of antennas geographically separated from the first set of antennas transmits a reference signal to a first device, and receives feedback from the first device. The feedback represents information that can be used to construct a weight adjustment vector. The base transceiver station selects a precoding vector from a codebook based at least in part on the feedback received from the first device, calculates the weight adjustment vector based at least in part on the feedback, and applies the weight adjustment vector to the selected precoding vector to provide an adjusted precoding vector. The base transceiver station then may transmit data to the first device using the adjusted precoding vector.
摘要翻译：简而言之，根据一个或多个实施例，具有第一组天线和与第一组天线地理上分离的第二组天线的基站收发台将参考信号发射到第一设备，并且从第一设备接收反馈。反馈代表可用于构建权重调整向量的信息。基站收发器至少部分地基于从第一设备接收到的反馈来从码本中选择预编码向量，至少部分基于反馈来计算权重调整向量，并将权重调整向量应用于所选择的预编码向量以提供经调整的预编码矢量。然后，基站收发台可以使用经调整的预编码向量向第一设备发送数据。

87. 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。

88. 发明申请

US20140133445A1 ENHANCED NODE B AND METHOD FOR PRECODING WITH REDUCED QUANTIZATION ERROR 有权
标题翻译：增强节点B和减少量化误差预测的方法
公开(公告)号：US20140133445A1
公开(公告)日：2014-05-15
申请号：US14160931
申请日：2014-01-22
申请人： Yuan Zhu , Qinghua Li , Xiaogang Chen
发明人： Yuan Zhu , Qinghua Li , Xiaogang Chen
IPC分类号： H04L1/00 , H04L1/20
CPC分类号： H04B7/0456 , H04B7/024 , H04B7/0413 , H04B7/0452 , H04B7/0482 , H04B7/0617 , H04B7/0639 , H04B7/0652 , H04L1/009 , H04L1/20 , H04L5/0048 , H04L2001/0093 , H04L2001/0097 , H04W24/10 , H04W40/24 , H04W52/0209 , H04W52/146 , H04W52/34 , H04W52/365 , H04W72/042 , H04W72/0473 , H04W72/06 , Y02D70/00 , Y02D70/1224 , Y02D70/1242 , Y02D70/1262 , Y02D70/1264 , Y02D70/142 , Y02D70/144 , Y02D70/146 , Y02D70/164 , Y02D70/168 , Y02D70/444
摘要： Embodiments of an enhanced Node B (eNB) and method for precoding with reduced quantization error are generally described herein. In some embodiments, first and second precoding-matrix indicator (PMI) reports may be received on an uplink channel and a single subband precoder matrix may be interpolated from precoding matrices indicated by both the PMI reports. Symbols for multiple-input multiple output (MIMO) beamforming may be precoded using the interpolated precoder matrix computed for single subband for a multiple user (MU)-MIMO downlink orthogonal frequency division multiple access (OFDMA) transmission. In some embodiments, each of the first and second PMI reports includes a PMI associated with a same subband that jointly describes a recommended precoder.
摘要翻译：通常在此描述增强型节点B（eNB）的实施例和用于具有减小的量化误差的预编码的方法。在一些实施例中，可以在上行链路信道上接收第一和第二预编码矩阵指示符（PMI）报告，并且可以从由PMI报告指示的预编码矩阵插值单个子带预编码器矩阵。可以使用针对多用户（MU）-MIMO下行链路正交频分多址（OFDMA）传输的单个子带计算的内插预编码器矩阵来对多输入多输出（MIMO）波束形成的符号进行预编码。在一些实施例中，第一和第二PMI报告中的每一个包括与联合描述推荐的预编码器的相同子带相关联的PMI。

89. 发明申请

US20140112406A1 TECHNOLOGY FOR CSI FEEDBACK IN A MIMO COMMUNICATION SYSTEM 有权
标题翻译： MIMO通信系统中的CSI反馈技术
公开(公告)号：US20140112406A1
公开(公告)日：2014-04-24
申请号：US13994745
申请日：2011-12-19
申请人： Yuan Zhu , Xiaogang Chen , Qinghua Li
发明人： Yuan Zhu , Xiaogang Chen , Qinghua Li
IPC分类号： H04B7/04
CPC分类号： H04B7/0452 , H04B7/0417 , H04B7/0456 , H04B7/0478 , H04B7/0486 , H04B7/0626 , H04B7/0639 , H04L1/0031
摘要： Technology for channel state information (CSI) feedback in a multiple-input multiple-output (MIMO) communication system is disclosed. A method comprises receiving, at a mobile device, a dynamic channel state information (CSI) feedback switch signal from a transmission station that identifies a selected CSI feedback state for the mobile device. A process for selecting a precoding matrix indicator (PMI) and a rank indicator is identified based on the CSI feedback switch signal as either a process configured for MU-MIMO reception or single-user (SU) MIMO reception of a downlink signal at the mobile device.
摘要翻译：公开了一种多输入多输出（MIMO）通信系统中的信道状态信息（CSI）反馈技术。一种方法包括在移动设备处接收来自识别移动设备的所选择的CSI反馈状态的传输站的动态信道状态信息（CSI）反馈切换信号。基于CSI反馈切换信号，将用于选择预编码矩阵指示符（PMI）和秩指示符的过程识别为用于在移动站处的MU-MIMO接收或下行链路信号的单用户（SU）MIMO接收的处理设备。

90. 发明授权

US08675558B2 CQI definition for transmission mode 9 in LTE-advanced 有权
标题翻译： LTE-Advanced中传输模式9的CQI定义
公开(公告)号：US08675558B2
公开(公告)日：2014-03-18
申请号：US13167941
申请日：2011-06-24
申请人： Yuan Zhu , Qinghua Li , Xiaogang Chen
发明人： Yuan Zhu , Qinghua Li , Xiaogang Chen
IPC分类号： H04W4/00
CPC分类号： H04W24/02 , H04B7/0689 , H04L1/0026 , H04L1/003 , H04L1/1861 , H04L5/0023 , H04L5/0035 , H04L5/0048 , H04L5/0057 , H04L5/0073 , H04L25/03949 , H04W24/00 , H04W72/00 , H04W72/04 , H04W88/08
摘要： An evolved Node B (eNB) in a 3GPP LTE-based network receives Channel State Information-Reference Signal (CSI-RS) from a User Equipment (UE) that is configured with Precoder Matrix Indicator (PMI) disabled. A channel is estimated between the eNB and the UE for link adaptation in Transmission Mode 9 (TM9) based on CSI-RS by the UE and SRS by the eNB. CQI is calculated at UE such that if a number of CSI-RS antenna ports equals one, TM9 transmission from the eNB to the UE uses a predetermined single antenna port. If the number of CSI-RS antenna ports equals two, TM9 transmission from the eNB to the UE uses transmit diversity. If the number of CSI-RS antenna ports does not equal one or two, TM9 transmission from the eNB to the UE uses spatial multiplexing based on a rank-1 precoder that is determined from a wideband channel covariance matrix R.
摘要翻译：基于3GPP LTE的网络中的演进节点B（eNB）从被配置为禁用预编码矩阵指示符（PMI）的用户设备（UE）接收信道状态信息参考信号（CSI-RS）。在eNB和UE之间估计基于UE的SRS-RS的传输模式9（TM9）中的链路自适应的信道。在UE处计算CQI，使得如果CSI-RS天线端口的数量等于1，则从eNB到UE的TM9传输使用预定的单个天线端口。如果CSI-RS天线端口的数量等于2，则从eNB到UE的TM9传输使用发送分集。如果CSI-RS天线端口的数量不等于1或2，则从eNB到UE的TM9传输使用基于从宽带信道协方差矩阵R确定的秩1预编码器的空间复用。

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