利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

578 条记录 (耗时 0.044 秒)

    LONG TRAINING FIELD SEQUENCE SECURITY PROTECTION
    71.
    发明申请
    LONG TRAINING FIELD SEQUENCE SECURITY PROTECTION 审中-公开

    公开(公告)号：US20190281459A1

    公开(公告)日：2019-09-12

    申请号：US16424982

    申请日：2019-05-29

    申请人： Feng Jiang ,  Qinghua Li ,  Jonathan Segev ,  Xiaogang Chen ,  Po-Kai Huang ,  Huaning Niu

    发明人： Feng Jiang ,  Qinghua Li ,  Jonathan Segev ,  Xiaogang Chen ,  Po-Kai Huang ,  Huaning Niu

    IPC分类号： H04W12/06 ,  H04W72/04 ,  H04L5/00 ,  H04W24/10

    摘要： This disclosure describes systems, methods, and devices related to long training field (LTF) sequence security protection. A device may determine a null data packet (NDP) frame comprising one or more fields. The device may determine a first long training field (LTF) and a second LTF, the first LTF and the second LTF being associated with a first frequency band of the NDP frame, wherein time domain LTF symbols of first LTF and the second LTF are generated using different LTF sequences. The device may determine a third LTF and a fourth LTF, the third LTF and the fourth LTF being associated with the a second frequency band of the NDP frame, wherein time domain LTF symbols of third LTF and the fourth LTF are generated using different LTF sequences. The device may cause to send the NDP frame to an initiating or a responding device. The device may cause to send a location measurement report (LMR) frame to the initiating or the responding device, wherein the LMR comprises timing information associated with the first frequency band and the second frequency band.

    Wireless communication via combined channel training and physical layer header signaling
    72.
    发明授权
    Wireless communication via combined channel training and physical layer header signaling 有权

    公开(公告)号：US10044421B2

    公开(公告)日：2018-08-07

    申请号：US14583253

    申请日：2014-12-26

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

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

    IPC分类号： H04B7/04 ,  H04B7/0452 ,  H04L29/06 ,  H04B7/06 ,  H04L5/00

    摘要： Embodiments herein relate to wireless communication using combined channel training and physical layer header (SIG) signaling. Devices that comply with the 802.11ax or High Efficiency WLAN (HEW) standard may generate and transmit packets that include such combined information. The combined information may be beamformed to a receiver device via an OFDM signal, which may be decoded by the receiver device to obtain subsequent data included in the signal. For example, initial training symbols associated with channel training subcarriers in the signal may be detected and used to perform a rough estimate of the channel. The rough estimate may thereafter be refined using data symbols detected from adjacent data subcarriers using the channel training symbols. In this way, data subcarriers may also be used to determine a channel response along with channel training subcarriers. Channel training information may be transmitted with data, such as user-specific information, in a single symbol.

    Technology for CSI feedback in a MIMO communication system
    77.
    发明授权
    Technology for CSI feedback in a MIMO communication system 有权
    MIMO通信系统中的CSI反馈技术

    公开(公告)号：US09319118B2

    公开(公告)日：2016-04-19

    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 ,  H04B7/06 ,  H04L1/00

    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。

    SYSTEMS, METHODS, AND DEVICES FOR EFFICIENT INDICATION OF BANDWIDTH AND STREAM ALLOCATION
    78.
    发明申请
    SYSTEMS, METHODS, AND DEVICES FOR EFFICIENT INDICATION OF BANDWIDTH AND STREAM ALLOCATION 审中-公开
    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。

    PRIORITIZED SYNCHRONIZATION SIGNALS AND MECHANISM FOR DISTRIBUTED DEVICE-TO-DEVICE SYSTEMS
    79.
    发明申请
    PRIORITIZED SYNCHRONIZATION SIGNALS AND MECHANISM FOR DISTRIBUTED DEVICE-TO-DEVICE SYSTEMS 审中-公开
    用于分布式设备到设备系统的优先同步信号和机制

    公开(公告)号：US20160037466A1

    公开(公告)日：2016-02-04

    申请号：US14779559

    申请日：2013-12-20

    申请人： Rongzhen YANG ,  Huaning NIU ,  Hujun YIN ,  Qinghua LI

    发明人： Rongzhen Yang ,  Huaning Niu ,  Hujun Yin ,  Qinghua Li

    IPC分类号： H04W56/00 ,  H04W8/00 ,  H04W4/22

    CPC分类号： H04W48/14 ,  H04W4/025 ,  H04W4/90 ,  H04W8/005 ,  H04W8/02 ,  H04W36/245 ,  H04W48/16 ,  H04W48/18 ,  H04W48/20 ,  H04W56/001 ,  H04W84/045 ,  H04W84/18

    摘要： Embodiments described herein relate generally to a user equipment (“UE”) that is to transmit and receive signals associated with synchronization. The UE may be receive signals associated with synchronization from a plurality of synchronization sources, such as an evolved Node B (“eNB”), a global navigation satellite system (“GNSS”), or another UE. The UE may synchronize to a signal received from a synchronization source based on a priority associated with that synchronization source and/or signal. However, if the UE does not receive any signals associated with synchronization, the UE may generate and transmit a signal that indicates a request for synchronization.

    摘要翻译： 本文所描述的实施例一般涉及要发送和接收与同步相关联的信号的用户设备（“UE”）。 UE可以从诸如演进节点B（“eNB”），全球导航卫星系统（“GNSS”）或另一个UE的多个同步源接收与同步相关联的信号。 UE可以基于与该同步源和/或信号相关联的优先级与从同步源接收的信号同步。 然而，如果UE没有接收到与同步相关联的任何信号，则UE可以生成并发送指示同步请求的信号。

    USER EQUIPMENT AND METHODS FOR CODEBOOK SUBSAMPLING FOR ENHANCED 4TX CODEBOOKS
    80.
    发明申请
    USER EQUIPMENT AND METHODS FOR CODEBOOK SUBSAMPLING FOR ENHANCED 4TX CODEBOOKS 审中-公开
    用于增强4TX代码的订阅器的用户设备和方法

    公开(公告)号：US20160006493A1

    公开(公告)日：2016-01-07

    申请号：US14739815

    申请日：2015-06-15

    申请人： Xiaogang Chen ,  Yuan Zhu ,  Qinghua Li

    发明人： Xiaogang Chen ,  Yuan Zhu ,  Qinghua Li

    IPC分类号： H04B7/04 ,  H04B7/06

    CPC分类号： H04B7/0456 ,  H04B7/0452 ,  H04B7/0486 ,  H04B7/0617 ,  H04B7/0626 ,  H04B7/063 ,  H04B7/0632 ,  H04B7/0639 ,  H04L27/20 ,  H04W4/70 ,  H04W12/02 ,  H04W28/0289 ,  H04W48/16 ,  H04W76/14 ,  H04W92/24

    摘要： Embodiments of user equipment (UE) and methods for codebook subsampling for enhanced 4TX codebooks in 3GPP LTE wireless networks are generally described herein. In some embodiments, a physical uplink control channel (PUCCH) is configured for transmission of channel state information (CSI) feedback including a rank indicator (RI) and a precoding matrix (W1). The rank indicator (RI) and a precoding matrix (W1) are jointly encoded and codebook subsampling is performed for the enhanced 4Tx codebook for at least one of: PUCCH report type 5 (RI/1st PMI) in PUCCH 1-1 submode 1; PUCCH report type 2c (CQI/1st PMI/2nd PMI) in PUCCH 1-1 submode 2; and PUCCH report type 1a (subband CQI/2nd PMI) in PUCCH 2-1.

    摘要翻译： 3GPP LTE无线网络中用于增强的4TX码本的用户设备（UE）和码本子采样方法的实施例在这里通常被描述。 在一些实施例中，物理上行链路控制信道（PUCCH）被配置用于传输包括秩指示符（RI）和预编码矩阵（W1）的信道状态信息（CSI）反馈。 针对PUCCH 1-1子模式1中的PUCCH报告类型5（RI /第一PMI）中的至少一个，增强型4Tx码本对码本指示符（RI）和预编码矩阵（W1）进行联合编码，并执行码本子采样。 PUCCH 1-1子模式2中的PUCCH报告类型2c（CQI / 1st PMI / 2nd PMI）; 和PUCCH 2-1中的PUCCH报告类型1a（子带CQI /第二PMI）。