公开(公告)号：US20140016714A1

公开(公告)日：2014-01-16

申请号：US13994114

申请日：2011-10-01

申请人： Xiaogang Chen ,  Yuan Zhu ,  Qinghua Li ,  Huaning Niu

发明人： Xiaogang Chen ,  Yuan Zhu ,  Qinghua Li ,  Huaning Niu

IPC分类号： H04L27/26

CPC分类号： H04L27/26 ,  H04B7/024 ,  H04B7/0456 ,  H04B7/0619 ,  H04L1/06 ,  H04W24/02 ,  H04W56/0045 ,  H04W56/0085 ,  H04W72/042

摘要： A physical channel processor on a wireless device and method for precoding for spatial multiplexing in an open-loop multiple-input multiple-output (MIMO) mobile communication system is disclosed. The method comprises the operation of receiving an input vector block from a layer mapper. The input vector block includes user equipment-specific reference signals (UE-RSs) or data in a physical downlink shared channel (PDSCH). The operation of generating a large delay cyclic delay diversity (CDD) vector block from the input vector block using a precoder configured for large delay CDD on an antenna port follows. The data can be resource element mapped with UE-RSs or channel-state information reference signals (CSI-RSs) in a physical resource block (PRB).

摘要翻译： 公开了一种无线设备上的物理信道处理器和用于在开环多输入多输出（MIMO）移动通信系统中进行空间复用的预编码的方法。 该方法包括从层映射器接收输入矢量块的操作。 输入向量块包括物理下行链路共享信道（PDSCH）中的用户设备专用参考信号（UE-RS）或数据。 接着，使用配置在天线端口上的大延迟CDD的预编码器从输入矢量块生成大的延迟循环延迟分集（CDD）矢量块的动作。 数据可以与物理资源块（PRB）中的UE-RS或信道状态信息参考信号（CSI-RS）进行资源元素映射。

公开(公告)号：US20140010320A1

公开(公告)日：2014-01-09

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： H04B7/06

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。

公开(公告)号：US20130272214A1

公开(公告)日：2013-10-17

申请号：US13672560

申请日：2012-11-08

申请人： Yuan Zhu ,  Xiaogang Chen ,  Qinghua Li

发明人： Yuan Zhu ,  Xiaogang Chen ,  Qinghua Li

IPC分类号： H04W72/04

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： In embodiments, an evolved Node B (eNB) of a wireless communication network may map individual enhanced control channel elements (eCCEs) of a physical resource block (PRB) pair to a plurality of non-continuous enhanced resource element groups (eREGs) of the PRB pair. The eNB may further map the plurality of eREGs to individual antenna ports for transmission to the UE, with individual antenna ports associated with a continuous group of eREGs. The eNB may assign at least a portion of an enhanced physical downlink control channel (ePDCCH) to one or more of the eCCEs for transmission to the UE. Additionally, or alternatively, an eNB may map eCCEs of a plurality of PRB pairs to a plurality of distributed resource block (DRB) pairs.

摘要翻译： 在实施例中，无线通信网络的演进节点B（eNB）可以将物理资源块（PRB）对的各个增强控制信道元素（eCCE）映射到多个非连续增强型资源元素组（eREG） PRB对。 eNB可以进一步将多个eREG映射到各个天线端口以传输到UE，其中各个天线端口与连续的一组eREG相关联。 eNB可以将增强的物理下行链路控制信道（ePDCCH）的至少一部分分配给一个或多个eCCE以便传输给UE。 另外或者替代地，eNB可以将多个PRB对的eCCE映射到多个分布式资源块（DRB）对。

公开(公告)号：US20130242885A1

公开(公告)日：2013-09-19

申请号：US13591673

申请日：2012-08-22

申请人： Yuan Zhu ,  Xiaogang Chen ,  Qinghua Li ,  Kamran Etemad ,  Seunghee Han

发明人： Yuan Zhu ,  Xiaogang Chen ,  Qinghua Li ,  Kamran Etemad ,  Seunghee Han

IPC分类号： H04W72/04

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 communicating enhanced physical downlink control channels (ePDCCHs) configured for inter-cell interference coordination (ICIC) for a plurality of cells in a physical resource block (PRB) is disclosed. One method can include a node mapping a serving cell control channel element (CCE) in an serving cell ePDCCH in a PRB and a coordination cell CCE in a coordination cell ePDCCH in the PRB. The node can transmit the map of the serving cell CCE and the coordination cell CCE to a wireless device.

摘要翻译： 公开了用于传送配置用于物理资源块（PRB）中的多个小区的小区间干扰协调（ICIC）的增强物理下行链路控制信道（ePDCCH）的技术。 一种方法可以包括在PRB中的服务小区ePDCCH中的服务小区控制信道单元（CCE）和PRB中的协作小区ePDCCH中的协调小区CCE的节点。 节点可以将服务小区CCE和协调小区CCE的映射传送到无线设备。

公开(公告)号：US20120082190A1

公开(公告)日：2012-04-05

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： H04L25/49 ,  H04B7/02 ,  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。

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。

公开(公告)号：US20200212985A1

公开(公告)日：2020-07-02

申请号：US16817255

申请日：2020-03-12

申请人： Xintian Lin ,  Yuan Zhu ,  Jonathan Segev ,  Qinghua Li ,  Xiaogang Chen ,  Feng Jiang

发明人： Xintian Lin ,  Yuan Zhu ,  Jonathan Segev ,  Qinghua Li ,  Xiaogang Chen ,  Feng Jiang

IPC分类号： H04B7/06

摘要： This disclosure describes systems, methods, and devices related to antenna configuration parameters. A device may determine one or more antennas having one or more phases. The device may determine a first delay associated with a first antenna of the one or more antennas. The device may determine a second delay associated with a second antenna of the one or more antennas. The device may cause to send a frame to a first station device using the first antenna, wherein the frame comprises a first indication of the delay associated with the first antenna and a second indication of the delay associated with the second antenna.

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.

公开(公告)号：US20170170885A1

公开(公告)日：2017-06-15

申请号：US15283383

申请日：2016-10-01

申请人： Qinghua Li ,  Xiaogang Chen ,  Xintian Lin ,  Yuan Zhu ,  Assaf Gurevitz ,  Uri Perlmutter

发明人： Qinghua Li ,  Xiaogang Chen ,  Xintian Lin ,  Yuan Zhu ,  Assaf Gurevitz ,  Uri Perlmutter

IPC分类号： H04B7/04 ,  H04W72/04 ,  H04W28/02

CPC分类号： H04B7/0617 ,  H04B7/0413 ,  H04W28/0236

摘要： This disclosure describes methods, apparatus, and systems related to applying channel smoothing to beamformed vectors in wireless communications between a transmitter device and a receiver device. In a first aspect, a device is disclosed that identifies disruptions between at least two first beamforming vectors on adjacent frequencies in a communication channel between the device and a first device of a plurality of user devices. The device determines one or more second beamforming vectors proximate to the identified disruption. The device utilizes the one or more second beamforming vectors to smooth the communication channel between the device and the first device of the plurality of user devices.

公开(公告)号：US20170105140A1

公开(公告)日：2017-04-13

申请号：US14972890

申请日：2015-12-17

申请人： Xiaogang Chen ,  Qinghua Li ,  Yuan Zhu ,  Yushu Zhang ,  Huaning Niu

发明人： Xiaogang Chen ,  Qinghua Li ,  Yuan Zhu ,  Yushu Zhang ,  Huaning Niu

IPC分类号： H04W28/06 ,  H04W72/04

CPC分类号： H04W28/06 ,  H04L1/00 ,  H04L1/0041 ,  H04L1/0067 ,  H04L1/08

摘要： Methods, computer readable media, and apparatuses for padding and decoding coding for a HE-SIG-B field are disclosed. An apparatus of an access point or station is disclosed. The apparatus is configured to determine a number of symbols of a longest high-efficiency signal B (HE-SIG-B) field of a plurality of HE-SIG-B fields. The processing circuitry may be further configured to encode a plurality of HE-SIG A fields to comprise a number of symbols of a longest HE-SIG-B field of the plurality of HE-SIG-B fields each HE-SIG-A field. The processing circuitry may be further configured to encode each of the HE-SIG-B fields of the plurality of HE-SIG-B fields to comprise a common block and a number of user blocks, and if a number of symbols to encode the common block and the number of user blocks is less than the number of symbols of the longest HE-SIG-B field, encode a duplicate portion.