LONG TRAINING FIELD SEQUENCE SECURITY PROTECTION

    公开(公告)号:US20190281459A1

    公开(公告)日:2019-09-12

    申请号:US16424982

    申请日:2019-05-29

    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

    公开(公告)号:US10044421B2

    公开(公告)日:2018-08-07

    申请号:US14583253

    申请日:2014-12-26

    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.

    PRIORITIZED SYNCHRONIZATION SIGNALS AND MECHANISM FOR DISTRIBUTED DEVICE-TO-DEVICE SYSTEMS
    8.
    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

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

    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。

    FAST CHANNEL RESERVATION FOR WI-FI
    10.
    发明申请
    FAST CHANNEL RESERVATION FOR WI-FI 审中-公开
    快速通道预留WI-FI

    公开(公告)号:US20150382341A1

    公开(公告)日:2015-12-31

    申请号:US14498360

    申请日:2014-09-26

    IPC分类号: H04W72/04

    摘要: Methods, apparatus, and systems for fast channel reservation in a Wi-Fi environment are discussed. More specifically, a communication station arranged for Clear Channel Assessment (CCA) channel status reporting, an access point, and communication methodologies therebetween are disclosed. Methods, apparatus, and systems described herein can be applied to 802.11ax downlink MU-MIMO as well as uplink MU-MIMO, either separately or simultaneously.

    摘要翻译: 讨论了Wi-Fi环境中用于快速通道预留的方法,装置和系统。 更具体地,公开了布置用于清除信道评估(CCA)信道状态报告,接入点和它们之间的通信方法的通信站。 本文描述的方法,设备和系统可以单独地或同时地应用于802.11ax下行链路MU-MIMO以及上行链路MU-MIMO。