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    SYSTEMS AND METHODS FOR SIGNAL CLASSIFICATION
    123.
    发明申请
    SYSTEMS AND METHODS FOR SIGNAL CLASSIFICATION 审中-公开

    公开(公告)号：US20170230157A1

    公开(公告)日：2017-08-10

    申请号：US15452771

    申请日：2017-03-08

    Applicant: Intel Corporation

    Inventor： Thomas J. Kenney ,  Eldad Perahia ,  Shahrnaz Azizi ,  Robert Stacey

    IPC: H04L5/00 ,  H04L27/20 ,  H04W84/12 ,  H04B7/0413

    CPC classification number: H04L5/0048 ,  H04B7/0413 ,  H04L5/0023 ,  H04L27/0012 ,  H04L27/20 ,  H04L27/2035 ,  H04L69/22 ,  H04W72/0453 ,  H04W84/12

    Abstract: This disclosure describes systems, and methods related to signal classification in a wireless communication network. A first computing device comprising one or more processors and one or more transceiver component may receive a signal transmission packet comprising a physical layer (PHY) preamble. The first computing device may identify within the PHY preamble, one or more signal (SIG) fields, wherein at least one of the one or more SIG fields includes at least a length field indicating a length of the signal transmission packet. The first computing device may determine based at least in part on the length field, that the signal transmission packet is associated with a predetermined communication standard utilized to transmit the signal transmission packet. The first computing device may decode the signal transmission packet based at least in part on the determination that the signal transmission packet is associated with the predetermined communication standard.

    Detection of 802.11p signals in 802.11 n/ac enabled devices
    124.
    发明授权
    Detection of 802.11p signals in 802.11 n/ac enabled devices 有权

    公开(公告)号：US09668281B2

    公开(公告)日：2017-05-30

    申请号：US14779053

    申请日：2013-11-26

    Applicant: Intel Corporation

    Inventor： Shahrnaz Azizi ,  Thomas J. Kenney ,  Eldad Perahia

    IPC: H04W74/08 ,  H04W84/12

    CPC classification number: H04W74/0816 ,  H04W84/12

    Abstract: Embodiments allow a wireless device configured to work with the 802.11n/ac standard to work in the communication bands where 802.11p devices operate with little change. Embodiments may receive signals using a receiver adapted for the wider bandwidth 802.11n/ac signals. Embodiments may also increase the sensitivity of the receiver to reduce the likelihood of missing the presence of a lower bandwidth 802.11p signal. When a signal is detected, embodiments may process the incoming signal as if it were an 802.11n/ac signal while also processing incoming signal samples in a way that effectively narrows the receiver bandwidth to identify whether an 802.11p signal is present. If the device detects the presence of an 802.11n/ac signal, it may terminate the 802.11p signal processing and proceed with normal 802.11n/ac operation. If the device detects the presence of an 802.11p signal, it may terminate 802.11n/ac processing and trigger collision avoidance processes.

    Methods and arrangements for channel updates in wireless networks
    127.
    发明授权
    Methods and arrangements for channel updates in wireless networks 有权
    无线网络中频道更新的方法和安排

    公开(公告)号：US09313075B2

    公开(公告)日：2016-04-12

    申请号：US13730935

    申请日：2012-12-29

    Applicant: Intel Corporation

    Inventor： Shahrnaz Azizi ,  Eldad Perahia ,  Thomas J. Kenney

    IPC: H04B1/69 ,  H04L27/26 ,  H04L5/00 ,  H04L25/02

    CPC classification number: H04L27/2666 ,  H04L5/0048 ,  H04L25/022 ,  H04L25/0224 ,  H04L27/2657 ,  H04L27/2675 ,  H04L27/2695

    Abstract: Logic may calculate predicted phase rotations based upon more than one previously determined phase rotation. Logic may access memory to store and retrieve previously determined phase rotations to calculate predicted phase rotations. Logic may determine channel information updates such as channel state information and phase correction information from pilot tones that do not travel close to the direct current (DC) tone or the band edge (or guard) tones and replace the missing phase rotations with predicted phase rotations. Logic may skip phase tracking from pilot tones that have traveled close to the DC tone or the edge tones or that experience channel fading, which may result in a predicted phase rotation being more accurate than a phase rotation determined by processing the corresponding pilot tone.

    Abstract translation: 逻辑可以基于多于一个先前确定的相位旋转来计算预测的相位旋转。 逻辑可以访问存储器以存储和检索先前确定的相位旋转以计算预测的相位旋转。 逻辑可以确定信道信息更新，例如来自不接近直流（DC）音调或频带边缘（或保护）音调的导频音调的信道状态信息和相位校正信息，并用预测的相位旋转代替丢失的相位旋转 。 逻辑可以跳过已经行进接近直流音或边缘音调的导频音调的相位跟踪，或者经历频道衰落，这可能导致预测的相位旋转比通过处理对应导频音调确定的相位旋转更准确。

    METHODS AND ARRANGEMENTS FOR FREQUENCY SELECTIVE TRANSMISSION
    128.
    发明申请
    METHODS AND ARRANGEMENTS FOR FREQUENCY SELECTIVE TRANSMISSION 审中-公开
    频率选择传输的方法和安排

    公开(公告)号：US20160100365A1

    公开(公告)日：2016-04-07

    申请号：US14873006

    申请日：2015-10-01

    Applicant: Intel Corporation

    Inventor： Minyoung Park ,  Thomas J. Kenney ,  Eldad Perahia ,  Shahrnaz Azizi ,  Adrian P. Stephens

    IPC: H04W52/02 ,  H04W72/12 ,  H04L25/02

    CPC classification number: H04W52/0235 ,  H04L5/006 ,  H04L25/0224 ,  H04W72/02 ,  H04W72/042 ,  H04W72/12 ,  Y02D70/00 ,  Y02D70/142 ,  Y02D70/144

    Abstract: Logic may comprise hardware and/or code to select a narrow band from a wider channel bandwidth. Logic of communications between devices may select, e.g., a 1 or 2 MHz sub-channel from a wider channel bandwidth such as 4, 8, and 16 MHz and transmit packets on the selected 1 or 2 MHz channel. For instance, a first device may comprise an access point and a second device may comprise a station such as a low power sensor or a meter that may, e.g., operate on battery power. Logic of the devices may facilitate a frequency selective transmission scheme. Logic of the access point may transmit sounding packets or control frames across the sub-channels of the wide bandwidth channel, facilitating selection by the stations of a sub-channel and subsequent communications on the sub-channel between the access point and the station.

    Abstract translation: 逻辑可以包括从更宽的信道带宽中选择窄带的硬件和/或代码。 设备之间通信的逻辑可以从诸如4,8和16MHz的更宽的信道带宽中选择例如1或2MHz的子信道，并在选择的1或2MHz信道上发送分组。 例如，第一设备可以包括接入点，并且第二设备可以包括诸如低功率传感器或可以例如对电池电力进行操作的仪表的站。 设备的逻辑可以促进频率选择性传输方案。 接入点的逻辑可以在宽带宽信道的子信道上发送探测分组或控制帧，便于各个小区的子信道选择和接入点与站之间子信道上的后续通信。

    Methods and arrangements for channel updates in wireless networks
    130.
    发明授权
    Methods and arrangements for channel updates in wireless networks 有权
    无线网络中频道更新的方法和安排

    公开(公告)号：US09210024B2

    公开(公告)日：2015-12-08

    申请号：US13730931

    申请日：2012-12-29

    Applicant: INTEL CORPORATION

    Inventor： Shahrnaz Azizi ,  Thomas J. Kenney ,  Eldad Perahia

    IPC: H04B1/38 ,  H04L27/26 ,  H04L5/00 ,  H04L25/02

    CPC classification number: H04L27/2666 ,  H04L5/0051 ,  H04L25/022 ,  H04L27/2647

    Abstract: Logic may determine channel information updates such as channel state information and phase correction information from pilot tones that do not travel close to the DC tone or the band edge tones. Logic may skip channel updates and phase tracking from pilot tones that have traveled close to the DC tone or the edge tones. Logic may use channel estimates and phase rotations that are obtained from previous locations of the pilot tones instead of pilot tones that are adjacent to the DC tone or the edge tones. Logic may access memory to store the channel information such as the phase correction information previously obtained and the channel state information previously obtained and derived from processing pilot tones at locations adjacent to the symbol indices next to the DC tone and the edge tones.

    Abstract translation: 逻辑可以确定频道信息更新，例如来自不接近DC音调或频带边缘音调的导频音调的信道状态信息和相位校正信息。 逻辑可以跳过频道更新和从已经行进接近直流音或边缘音调的导频音进行相位跟踪。 逻辑可以使用从导频音调的先前位置获得的信道估计和相位旋转，而不是与DC音调或边缘音调相邻的导频音调。 逻辑可以访问存储器以存储信道信息，例如先前获得的相位校正信息和先前从与直流音和边缘音调相邻的符号索引处的导频音处理导出的信道状态信息。

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