公开(公告)号：US20140003240A1

公开(公告)日：2014-01-02

申请号：US13728778

申请日：2012-12-27

Applicant: Xiaogang Chen ,  Alexei Davydov ,  Qinghua Li ,  Yuan Zhu ,  Gregory V. Morozov ,  Jong-Kae Fwu ,  Seunghee Han ,  Huaning Niu ,  Rongzhen Yang

Inventor： Xiaogang Chen ,  Alexei Davydov ,  Qinghua Li ,  Yuan Zhu ,  Gregory V. Morozov ,  Jong-Kae Fwu ,  Seunghee Han ,  Huaning Niu ,  Rongzhen Yang

IPC: H04W28/08

CPC classification number: 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

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US20130343317A1

公开(公告)日：2013-12-26

申请号：US13996150

申请日：2012-06-07

Applicant: Kamran Etemad ,  Alexei Davydov

Inventor： Kamran Etemad ,  Alexei Davydov

IPC: H04B7/02

CPC classification number: H04B7/024 ,  H04B7/0626 ,  H04L1/0026 ,  H04L1/007 ,  H04W72/042 ,  Y02D70/124 ,  Y02D70/126

Abstract: Embodiments of the present disclosure describe devices, methods, computer-readable media and systems configurations for configuration of downlink coordinated multi-point (CoMP) communications in a wireless communication network. A user equipment (UE) may receive channel state information (CSI) reference signal (RS) parameters, from an evolved Node B (eNB), for individual transmission points of a coordinated multi-point (CoMP) Measurement Set including a plurality of transmission points. The UE may generate CSI-RS feedback information for the individual transmission points of the CoMP Measurement Set, and may transmit the generated CSI-RS feedback information for one or more of the individual transmission points to the eNB. The UE may receive a transmission from the eNB updating the individual transmission points included in the CoMP Measurement Set.

Abstract translation: 本公开的实施例描述了用于在无线通信网络中配置下行链路协调多点（CoMP）通信的设备，方法，计算机可读介质和系统配置。 用户设备（UE）可以从演进的节点B（eNB）接收针对包括多个传输的协调多点（CoMP）测量集合的各个传输点的信道状态信息（CSI）参考信号（RS）参数 分。 UE可以为CoMP测量集合的各个传输点生成CSI-RS反馈信息，并且可以向eNB发送针对一个或多个单独传输点的所生成的CSI-RS反馈信息。 UE可以从eNB接收更新包括在CoMP测量集中的各个传输点的传输。

公开(公告)号：US20130288728A1

公开(公告)日：2013-10-31

申请号：US13995158

申请日：2011-09-30

Applicant: Alexei Davydov ,  Alexander Alexandrovich Maltsev ,  Gregory Vladimirovich Morozov ,  Vadim S. Sergeyev ,  Yuan Zhu ,  Kamran Etemad ,  Xiangying Yang ,  Yujian Zhang

Inventor： Alexei Davydov ,  Alexander Alexandrovich Maltsev ,  Gregory Vladimirovich Morozov ,  Vadim S. Sergeyev ,  Yuan Zhu ,  Kamran Etemad ,  Xiangying Yang ,  Yujian Zhang

IPC: H04W24/02

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

Abstract: Briefly, in accordance with one or more embodiments, mobile station or user equipment receives pilot signals from two or more infrastructure nodes in a distributed antenna system, and calculates phase or timing information, or combinations thereof, from the pilot signals. The mobile station feeds back the phase or timing information, or combinations thereof, to the infrastructure nodes, and then receives one or more subsequent transmissions from the infrastructure nodes with phase shift or timing adjustments, or combinations thereof, calculated by the infrastructure nodes and applied to the spatial streams transmitted by the infrastructure nodes.

Abstract translation: 简而言之，根据一个或多个实施例，移动站或用户设备从分布式天线系统中的两个或多个基础设施节点接收导频信号，并根据导频信号计算相位或定时信息或其组合。 移动台将相位或定时信息或其组合反馈到基础设施节点，然后从基础设施节点接收具有由基础设施节点计算的相移或定时调整或其组合的一个或多个后续传输并应用 到由基础设施节点发送的空间流。

公开(公告)号：US20130272262A1

公开(公告)日：2013-10-17

申请号：US13729164

申请日：2012-12-28

Applicant: 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

Inventor： 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: H04W74/08

CPC classification number: 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

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US20130115985A1

公开(公告)日：2013-05-09

申请号：US13538784

申请日：2012-06-29

Applicant: Alexei Davydov ,  Gregory V. Morozov ,  Alexander Maltsev ,  Andrey Pudeyev

Inventor： Alexei Davydov ,  Gregory V. Morozov ,  Alexander Maltsev ,  Andrey Pudeyev

IPC: H04B15/00

CPC classification number: H04B7/0417 ,  H04B7/024 ,  H04B7/0456 ,  H04B7/0632 ,  H04B7/0639 ,  Y02D70/1262 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/146 ,  Y02D70/442 ,  Y02D70/444

Abstract: Technology for spatial domain beamforming coordination at a low power node (LPN) in a heterogeneous network (HetNet) is disclosed. One method can include the LPN collecting spatial feedback information of macro node interference from a plurality of wireless devices in a LPN cell. The LPN can compile the spatial feedback information into a spatial feedback report. The LPN can send the spatial feedback report from the LPN to a macro node for calculating a beamforming vector to reduce the macro node interference for the plurality of wireless devices in the LPN cell.

Abstract translation: 公开了在异构网络（HetNet）中的低功率节点（LPN）处的空间域波束成形协调技术。 一种方法可以包括LPN收集来自LPN小区中的多个无线设备的宏节点干扰的空间反馈信息。 LPN可以将空间反馈信息编译成空间反馈报告。 LPN可以将空间反馈报告从LPN发送到宏节点，以计算波束形成向量，以减少LPN小区中的多个无线设备的宏节点干扰。

公开(公告)号：US20130114524A1

公开(公告)日：2013-05-09

申请号：US13538070

申请日：2012-06-29

Applicant: Alexander Sirotkin ,  Alexei Davydov

Inventor： Alexander Sirotkin ,  Alexei Davydov

IPC: H04W72/04 ,  H04W24/10

CPC classification number: H04B7/024 ,  H04B7/0626 ,  H04B7/063 ,  H04B7/0639 ,  H04L1/0026 ,  H04L1/1812 ,  H04L69/324 ,  H04W72/0426 ,  H04W72/1205

Abstract: Examples are disclosed for coordinating transmission of one or more protocol data units to a wireless device from a coordinating set of base stations. In some examples, coordinating may include exchanging information via a backhaul communication channel coupling or interconnecting the base stations included in the coordinating set of base stations. For these examples, one or more protocol data units may be transmitted to the wireless device from the coordinating set of base stations via a plurality of separate communication links based on the exchanged information. Other examples are described and claimed.

公开(公告)号：US20120257575A1

公开(公告)日：2012-10-11

申请号：US13524146

申请日：2012-06-15

Applicant: Alexei Davydov ,  Alexander Maltsev ,  Gregory V. Morozov ,  Vadim Sergeyev ,  Yuan Zhu ,  Kamran Etemad ,  Xiangying Yang ,  Yujian Zhang

Inventor： Alexei Davydov ,  Alexander Maltsev ,  Gregory V. Morozov ,  Vadim Sergeyev ,  Yuan Zhu ,  Kamran Etemad ,  Xiangying Yang ,  Yujian Zhang

IPC: H04W4/00

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

Abstract: Briefly, in accordance with one or more embodiments, mobile station or user equipment receives pilot signals from two or more infrastructure nodes in a distributed antenna system, and calculates phase or timing information, or combinations thereof, from the pilot signals. The mobile station feeds back the phase or timing information, or combinations thereof, to the infrastructure nodes, and then receives one or more subsequent transmissions from the infrastructure nodes with phase shift or timing adjustments, or combinations thereof, calculated by the infrastructure nodes and applied to the spatial streams transmitted by the infrastructure nodes.

Abstract translation: 简而言之，根据一个或多个实施例，移动站或用户设备从分布式天线系统中的两个或多个基础设施节点接收导频信号，并根据导频信号计算相位或定时信息或其组合。 移动台将相位或定时信息或其组合反馈到基础设施节点，然后从基础设施节点接收具有由基础设施节点计算的相移或定时调整或其组合的一个或多个后续传输并应用 到由基础设施节点发送的空间流。

公开(公告)号：US20090168687A1

公开(公告)日：2009-07-02

申请号：US11967332

申请日：2007-12-31

Applicant: Qinghua Li ,  Xintian Eddie Lin ,  Minnie Ho ,  Alexei Davydov ,  Andrey Pudeyev ,  Alexander Maltsev

Inventor： Qinghua Li ,  Xintian Eddie Lin ,  Minnie Ho ,  Alexei Davydov ,  Andrey Pudeyev ,  Alexander Maltsev

IPC: H04B7/14

CPC classification number: H04W16/18 ,  H04B7/2606 ,  H04W16/26 ,  H04W24/02

Abstract: An embodiment of the present invention provides a method, comprising optimizing the location and configuration of relay stations in a wireless network that includes at least one base station and at least one relay station by taking into account at least one or more of the following: the distinct antenna heights of said at least one base station and said at least one relay station; the data dependency between said at least one relay station and said at least one base station; the service outage of said wireless network; and the network throughput of said wireless network.

Abstract translation: 本发明的实施例提供了一种方法，其包括通过考虑以下中的至少一个或多个来优化包括至少一个基站和至少一个中继站的无线网络中的中继站的位置和配置： 所述至少一个基站和所述至少一个中继站的不同天线高度; 所述至少一个中继站与所述至少一个基站之间的数据依赖性; 所述无线网络的服务中断; 和所述无线网络的网络吞吐量。

公开(公告)号：US20050157638A1

公开(公告)日：2005-07-21

申请号：US10749853

申请日：2003-12-30

Applicant: Alexander Maltsev ,  Ali Sadri ,  Alexei Davydov

Inventor： Alexander Maltsev ,  Ali Sadri ,  Alexei Davydov

IPC: H04L27/26 ,  H04J11/00

CPC classification number: H04L27/2608 ,  H04L1/0003 ,  H04L1/0009

Abstract: Various embodiments are described for adaptive puncturing techniques.

Abstract translation: 针对自适应穿孔技术描述了各种实施例。

公开(公告)号：US20220029870A1

公开(公告)日：2022-01-27

申请号：US17499094

申请日：2021-10-12

Applicant: Peng Lu ,  Alexei Davydov ,  Jong-Kae Fwu ,  Sungho Moon ,  Xiangyang Zhuang

Inventor： Peng Lu ,  Alexei Davydov ,  Jong-Kae Fwu ,  Sungho Moon ,  Xiangyang Zhuang

IPC: H04L27/26 ,  H04L5/00 ,  H04J13/00

Abstract: An apparatus and system to compensate for phase noise in a 5G or 6G DFT-S-OFDM signal are described. An access port (AP)-specific orthogonal cover code (OCC) is applied to phase tracking reference signal (PTRS) symbols in each of a plurality of PTRS groups. The PTRS group are inserted between data symbols to form a data vector prior to perform transform precoding, on the data vector and transmission to a UE. The UE extracts the PTRS symbols from different PTRS APs using the OCC specific to each AP. After extraction, the phase noise for each PTRS group is estimated and used to compensate the data symbols associated with the PTRS group.