HIGH-EFFICIENCY (HE) COMMUNICATION STATION AND METHOD FOR COMMUNICATING LONGER DURATION OFDM SYMBOLS WITHIN 40 MHZ AND 80 MHZ BANDWIDTH
    51.
    发明申请
    HIGH-EFFICIENCY (HE) COMMUNICATION STATION AND METHOD FOR COMMUNICATING LONGER DURATION OFDM SYMBOLS WITHIN 40 MHZ AND 80 MHZ BANDWIDTH 有权
    高效率(HE)通信站和用于在40MHz和80MHz带宽中通信长时间OFDM符号的方法

    公开(公告)号:US20150288489A1

    公开(公告)日:2015-10-08

    申请号:US14573912

    申请日:2014-12-17

    Abstract: Embodiments of a high-efficiency (HE) communication station and method for HE communication in a wireless network are generally described herein. The HE communication station may communicate 4× longer-duration OFDM symbols on channel resources in accordance with an OFDMA technique. The channel resources may comprise one or more resource allocation units with each resource allocation unit having a predetermined number of data subcarriers. The station may also configure the resource allocation units in accordance with one of a plurality of subcarrier allocations for one of a plurality of interleaver configurations. The station may process the longer-duration OFDM symbols with a 512-point fast-Fourier Transform (FFT) for communication over a 40 MHz channel bandwidth comprising a 40 MHz resource allocation unit, and with a 1024-point FFT for communication over an 80 MHz channel bandwidth comprising either two 40 MHz resource allocation units or one 80 MHz resource allocation unit.

    Abstract translation: 本文通常描述用于无线网络中的HE通信的高效(HE)通信站和方法的实施例。 HE通信站可以根据OFDMA技术在信道资源上传送4×更长持续时间的OFDM符号。 信道资源可以包括一个或多个资源分配单元,其中每个资源分配单元具有预定数量的数据子载波。 该站还可以根据用于多个交织器配置中的一个的多个子载波分配中的一个配置资源分配单元。 该站可以使用512点快速傅里叶变换(FFT)来处理较长持续时间的OFDM符号,用于在包括40MHz资源分配单元的40MHz信道带宽上进行通信,并且使用1024点FFT进行通信,通过80 MHz信道带宽包括两个40 MHz资源分配单元或一个80 MHz资源分配单元。

    Methods and arrangements to mitigate collisions in wireless networks

    公开(公告)号:US10200974B2

    公开(公告)日:2019-02-05

    申请号:US13931918

    申请日:2013-06-29

    Abstract: Logic for collision mitigation between transmissions of wireless transmitters and receivers operating at different bandwidths. Logic of the receivers may be capable of receiving and detecting signals transmitted at narrower bandwidths. In several embodiments, the receivers comprise a clear channel assessment logic that implements a guard interval (or cyclic prefix) detector to detect transmissions at narrower bandwidths. For instance, a two MegaHertz (MHz) bandwidth receiver may implement a guard interval detector to detect 1 MHz bandwidth signals and a 16 MHz bandwidth receiver may implement logic to detect one or more 1 MHz bandwidth signals and any other combination of, e.g., 1, 2, 4, 8 MHz bandwidth signals. In many embodiments, the guard interval detector may be implemented to detect guard intervals on a channel designated as a primary channel as well as on one or more non-primary channels.

    Wireless device, method, and computer readable media for synchronization in a wireless local-area network
    60.
    发明授权
    Wireless device, method, and computer readable media for synchronization in a wireless local-area network 有权
    无线设备,方法和用于在无线局域网中进行同步的计算机可读介质

    公开(公告)号:US09591569B2

    公开(公告)日:2017-03-07

    申请号:US14572351

    申请日:2014-12-16

    Abstract: Wireless devices, methods, and computer readable media for synchronization in a wireless local-area network. A method on a wireless communication device may include tuning to a first subchannel based on a schedule received from an access point (AP) the schedule to indicate that the HEW device is assigned to the first subchannel. The method may further include determining a target beacon receive time and tuning to a second subchannel to receive the target beacon at the target beacon receive time. The method may further include receiving the target beacon on the second subchannel and tuning back to the first subchannel. A method on an AP for synchronization may include transmitting information that indicates a target beacon receive time on a subchannel. The method may include not transmitting to a wireless communication device operating on a second subchannel for a period of time before the target beacon receive time, and transmitting a target beacon on a first subchannel at the target beacon receive time.

    Abstract translation: 用于在无线局域网中进行同步的无线设备,方法和计算机可读介质。 无线通信设备上的方法可以包括基于从接入点(AP)接收的调度来调整到第一子信道的调度,以指示HEW设备被分配给第一子信道。 该方法还可以包括确定目标信标接收时间并调谐到第二子信道以在目标信标接收时间接收目标信标。 该方法还可以包括在第二子信道上接收目标信标并且回调到第一子信道。 用于同步的AP上的方法可以包括在子信道上发送指示目标信标接收时间的信息。 该方法可以包括在目标信标接收时间之前的一段时间内不发送到在第二子信道上操作的无线通信设备,并且在目标信标接收时间在第一子信道上发送目标信标。

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