METHODS AND ARRANGEMENTS TO SIGNAL SHORT INTERFRAME SPACES
    95.
    发明申请
    METHODS AND ARRANGEMENTS TO SIGNAL SHORT INTERFRAME SPACES 有权
    信号短路帧间隔的方法和布置

    公开(公告)号:US20140071956A1

    公开(公告)日:2014-03-13

    申请号:US13725124

    申请日:2012-12-21

    IPC分类号: H04W72/04

    摘要: Generally, embodiments to enable, indicate and detect Short Interframe Space (SIFS) of different time durations, a short (or small) SIFS which is shorter in duration than a regular SIFS, are described herein. Embodiments may comprise logic such as hardware and/or code to signal a short SIFS or a regular SIFS by setting or clearing a bit of a management frame transmitted by a station to an access point during the network association process, or by setting or clearing a bit in the SIG field of the preamble of a data unit transmitted by an access point to an associated station. In some embodiments, a third party station is able to receive the data unit sent by the access point, and decode, e.g., the SIG field bit to determine whether the short SIFS duration or regular SIFS duration is defined for the communication between the access point and the station.

    摘要翻译: 通常,在本文中描述了实现,指示和检测不同时间持续时间的短帧间间隔(SIFS)的实施例,其持续时间比常规SIFS更短的短(或小)SIFS。 实施例可以包括诸如硬件和/或代码的逻辑,以通过在网络关联过程期间将由站发送的管理帧的位设置或清除到接入点来发送短信号SIFS或常规SIFS,或者通过设置或清除 位在由接入点发送到相关站的数据单元的前同步码的SIG字段中。 在一些实施例中,第三方站能够接收由接入点发送的数据单元,并且解码,例如,SIG字段位,以确定是否为接入点之间的通信定义了短SIFS持续时间或常规SIFS持续时间 和车站。

    Methods and arrangements for communications in low power wireless networks
    96.
    发明授权
    Methods and arrangements for communications in low power wireless networks 有权
    低功率无线网络通信的方法和布置

    公开(公告)号:US09357437B2

    公开(公告)日:2016-05-31

    申请号:US13977699

    申请日:2011-12-30

    IPC分类号: H04L27/20 H04W28/06 H04L27/26

    摘要: Embodiments may comprise an orthogonal frequency division multiplexing (OFDM) system operating in the 1 GHz and lower frequency bands. In many embodiments, the physical layer logic may implement repetition logic to repeat portions of the data streams to increase the ability of a receiving device to detect and decode the data streams. In some embodiments, the repetition logic may comprise a preamble repeater to repeat the training and/or signal fields. In further embodiments, the repetition logic may comprise a payload repeater to repeat the payload one or more times. Other embodiments comprise a receiving device comprising a correlator to correlate the repeated preamble symbols to detect a communication from a transmitting device. The receiving device may also comprise correction logic to correct data streams from the communications signal based upon repetitions of the payload in the data streams.

    摘要翻译: 实施例可以包括在1GHz和更低频带中工作的正交频分复用(OFDM)系统。 在许多实施例中,物理层逻辑可以实现重复逻辑以重复数据流的部分,以增加接收设备检测和解码数据流的能力。 在一些实施例中,重复逻辑可以包括用于重复训练和/或信号字段的前同步码中继器。 在另外的实施例中,重复逻辑可以包括有效载荷中继器,以一次或多次重复有效载荷。 其他实施例包括接收设备,其包括相关器,用于将重复的前导码符号相关联以检测来自发送设备的通信。 接收设备还可以包括校正逻辑,用于基于数据流中有效载荷的重复来从通信信号校正数据流。

    Wireless device and method for low power and low data rate operation
    100.
    发明授权
    Wireless device and method for low power and low data rate operation 有权
    用于低功率和低数据速率操作的无线设备和方法

    公开(公告)号:US09049239B2

    公开(公告)日:2015-06-02

    申请号:US13993287

    申请日:2011-11-21

    摘要: Embodiments of a wireless device and method for transmitting a packet comprising one or more orthogonal frequency division multiplexed (OFDM) transmission symbols are generally described herein. In some embodiments, the wireless device may be configured to map data to active tones and map zeroes to nulled tones of a set of OFDM tones to generate an OFDM symbol comprising both the active and the nulled tones. The number of active and nulled tones may be based on a nulling factor. The OFDM symbol may be down-clocked to generate an OFDM transmission symbol for transmission over a reduced transmission bandwidth. Accordingly, low power may be used for very low data rate transmissions, which may be suitable for sensor devices.

    摘要翻译: 本文通常描述用于发送包括一个或多个正交频分复用(OFDM)传输符号的分组的无线设备和方法的实施例。 在一些实施例中,无线设备可以被配置为将数据映射到活动音调并将零映射到一组OFDM音调的零位音,以生成包括有效和无效音调的OFDM符号。 有效和无效音调的数量可以基于归零因子。 OFDM符号可以被降频以产生用于在降低的传输带宽上传输的OFDM传输符号。 因此,低功率可用于非常低的数据速率传输,这可能适用于传感器设备。