利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

196 条记录 (耗时 0.039 秒)

    ACCESS POINT AND METHODS FOR DISTINGUISHING HEW PHYSICAL LAYER PACKETS WITH BACKWARDS COMPATIBILITY
    81.
    发明申请
    ACCESS POINT AND METHODS FOR DISTINGUISHING HEW PHYSICAL LAYER PACKETS WITH BACKWARDS COMPATIBILITY 有权
    用于辨别具有背景兼容性的物理层包的接入点和方法

    公开(公告)号：US20150139205A1

    公开(公告)日：2015-05-21

    申请号：US14304041

    申请日：2014-06-13

    申请人： Thomas J. Kenney ,  Eldad Perahia ,  Shahrnaz Azizi

    发明人： Thomas J. Kenney ,  Eldad Perahia ,  Shahrnaz Azizi

    IPC分类号： H04W16/14 ,  H04W28/06

    CPC分类号： H04W28/06 ,  H04B7/0452 ,  H04L5/0053 ,  H04L5/0091 ,  H04W16/14 ,  H04W52/241 ,  H04W52/267 ,  H04W52/346 ,  H04W52/42 ,  H04W56/00 ,  H04W74/006 ,  H04W84/12

    摘要： Embodiments of a system and methods for distinguishing high-efficiency Wi-Fi (HEW) packets from legacy packets are generally described herein. In some embodiments, an access point may select a value for the length field of a legacy signal field (L-SIG) that is non-divisible by three for communicating with HEW stations and may select a value for the length field that is divisible by three for communicating with legacy stations. In some embodiments, the access point may select a phase rotation for application to the BPSK modulation of at least one of the first and second symbols of a subsequent signal field to distinguish a high-throughput (HT) PPDU, a very-high throughput (VHT) PPDU and an HEW PPDU.

    摘要翻译： 本文通常描述用于区分高效Wi-Fi（HEW）分组与传统分组的系统和方法的实施例。 在一些实施例中，接入点可以为不与HEW站进行通信的三分之一的遗留信号字段（L-SIG）的长度字段的值选择一个值，并且可以选择一个可以由 三个用于与传统站通信。 在一些实施例中，接入点可以选择用于应用于随后信号字段的第一和第二符号中的至少一个的BPSK调制的相位旋转，以区分高吞吐量（HT）PPDU，非常高的吞吐量 VHT）PPDU和HEW PPDU。

    Techniques to accommodate different classes of devices in a wireless network
    83.
    发明授权
    Techniques to accommodate different classes of devices in a wireless network 有权
    适应无线网络中不同类别设备的技术

    公开(公告)号：US08848841B2

    公开(公告)日：2014-09-30

    申请号：US13728464

    申请日：2012-12-27

    申请人： Shahrnaz Azizi ,  Thomas J. Kenney ,  Eldad Perahia

    发明人： Shahrnaz Azizi ,  Thomas J. Kenney ,  Eldad Perahia

    IPC分类号： H04L27/06 ,  H04B1/10

    CPC分类号： H04L25/0226 ,  H04L5/0048 ,  H04L25/022 ,  H04L27/2647 ,  H04L2025/03414

    摘要： An apparatus, a method and a machine-readable storage medium to accommodate both high function and low cost wireless devices in a wireless network. An exemplary apparatus includes a receiver to wirelessly receive a first packet comprising first and second shifting pilot signals amidst first data symbols transmitted via multiple subcarriers in symbol sets; a transmitter to wireless transmit a second packet; and logic to track a phase shift using the first and second shifting pilot signals, to configure the receiver to compensate for the shift in phase, to refrain from using reception of the first and second shifting pilot signals to update an initial channel estimate derived from a preamble of the first packet, and to transmit third and fourth shifting pilot signals amidst second data symbols of the second packet.

    摘要翻译： 一种在无线网络中兼容高功能和低成本无线设备的装置，方法和机器可读存储介质。 一种示例性装置包括：接收机，用于无线地接收第一和第二移位导频信号的第一分组，所述第一和第二移位导频信号在经由符号集合中的多个子载波发射的第一数据符号中; 用于无线发射第二分组的发射机; 以及用于使用第一和第二移位导频信号跟踪相移的逻辑，以配置接收机来补偿相位偏移，以避免使用第一和第二移位导频信号的接收来更新源自 并且在第二分组的第二数据符号之间传送第三和第四移位导频信号。

    METHODS, SYSTEMS AND APPARATUSES FOR DIRECT DATA FRAMES
    85.
    发明申请
    METHODS, SYSTEMS AND APPARATUSES FOR DIRECT DATA FRAMES 有权
    直接数据框架的方法，系统和设备

    公开(公告)号：US20140192823A1

    公开(公告)日：2014-07-10

    申请号：US13977710

    申请日：2012-04-24

    申请人： Thomas A. Tetzlaff ,  Minyoung Park ,  Emily H. Qi ,  Thomas J. Kenney ,  Eldad Perahia

    发明人： Thomas A. Tetzlaff ,  Minyoung Park ,  Emily H. Qi ,  Thomas J. Kenney ,  Eldad Perahia

    IPC分类号： H04L29/06

    CPC分类号： H04L69/22 ,  H04L69/04 ,  H04L69/324

    摘要： Generally, arrangements for enabling direct medium access control (MAC) sublayer data frames are described herein. Embodiments may comprise logic such as hardware and/or code to reduce the size of a packet by determining a frame in the MAC sublayer, inserting the frame in the signal field of a preamble to transmit, transmitting the direct MAC data frame as a packet, communicating that the packet is a direct MAC data frame, and parsing and interpreting the direct MAC data frame at the receiving device. Embodiments may determine and transmit and/or receive and interpret direct MAC data frames.

    摘要翻译： 通常，这里描述了用于启用直接介质访问控制（MAC）子层数据帧的布置。 实施例可以包括诸如硬件和/或代码的逻辑，以通过确定MAC子层中的帧来减小分组的大小，将帧插入前导码的信号字段中以发送，作为分组发送直接MAC数据帧， 通信该分组是直接的MAC数据帧，以及解析和解释在接收设备处的直接MAC数据帧。 实施例可以确定和发送和/或接收和解释直接的MAC数据帧。

    METHODS AND ARRANGEMENTS TO MITIGATE COLLISIONS IN WIRELESS NETWORKS BY ENABLING COEXISTENCE OF DISPARATE BANDWIDTHS
    86.
    发明申请
    METHODS AND ARRANGEMENTS TO MITIGATE COLLISIONS IN WIRELESS NETWORKS BY ENABLING COEXISTENCE OF DISPARATE BANDWIDTHS 有权
    通过启用无线网络的共同作用，在无线网络中缓解冲突的方法和安排

    公开(公告)号：US20140119280A1

    公开(公告)日：2014-05-01

    申请号：US13796389

    申请日：2013-03-12

    申请人： Shahrnaz AZIZI ,  Eldad PERAHIA ,  Thomas J. Kenney

    发明人： Shahrnaz AZIZI ,  Eldad PERAHIA ,  Thomas J. Kenney

    IPC分类号： H04W74/08

    CPC分类号： H04W74/0816

    摘要： Systems, devices, and methods for mitigating collisions between wireless transmissions operating at different bandwidths are disclosed. As such, a wireless device operating at a predefined bandwidth includes a transceiver that receives a signal across a wireless channel, a filter that generates a band-limited filtered signal at the predefined bandwidth of the wireless device, a correlating mechanism that correlates the band-limited filtered signal with a delayed, conjugated version of the band-limited filtered signal, logic that performs a moving average of the correlated filtered signals to determine correlation peaks, and logic configured to compare the correlation peaks with a predetermined threshold. With this configuration, if the correlation peaks are greater than the predetermined threshold, the received signal is determined to operate at a wider bandwidth than the predefined bandwidth of the wireless device, and the wireless device defers accessing the wireless channel to transmit until a predetermined time interval.

    摘要翻译： 公开了用于减轻以不同带宽工作的无线传输之间的冲突的系统，设备和方法。 这样，以预定带宽工作的无线设备包括：收发器，其通过无线信道接收信号;滤波器，其在无线设备的预定带宽下生成带限滤波信号;相关机制， 具有带限滤波信号的延迟共轭版本的有限滤波信号，执行相关滤波信号的移动平均以确定相关峰值的逻辑，以及被配置为将相关峰值与预定阈值进行比较的逻辑。 利用该配置，如果相关峰值大于预定阈值，则确定接收信号在比无线设备的预定带宽更宽的带宽上操作，并且无线设备延迟访问无线信道以发送直到预定时间 间隔。

    METHODS AND ARRANGEMENTS FOR SELECTING CHANNEL UPDATES IN WIRELESS NETWORKS
    88.
    发明申请
    METHODS AND ARRANGEMENTS FOR SELECTING CHANNEL UPDATES IN WIRELESS NETWORKS 审中-公开
    在无线网络中选择通道更新的方法和安排

    公开(公告)号：US20140010324A1

    公开(公告)日：2014-01-09

    申请号：US13730993

    申请日：2012-12-29

    申请人： Thomas J. Kenney ,  Eldad Perahia ,  Shahrnaz Azizi

    发明人： Thomas J. Kenney ,  Eldad Perahia ,  Shahrnaz Azizi

    IPC分类号： H04L27/22

    CPC分类号： H04L27/22 ,  H04L5/0007 ,  H04L5/0023 ,  H04L5/0048 ,  H04L5/0051 ,  H04L5/006 ,  H04L5/0085 ,  H04L5/0094 ,  H04L25/0204 ,  H04L25/0224 ,  H04L25/0226 ,  H04L27/2613 ,  H04L27/2657 ,  H04L27/2694 ,  H04L27/2695 ,  H04L2025/0377 ,  H04L2027/0026 ,  H04L2027/0095

    摘要： Pilot logic may determine based upon channel and phase information how to process pilot tones that shift locations every N symbols in an orthogonal frequency division multiplexing (OFDM) packet transmission. Pilot logic may determine a signal-to-noise ratio (SNR) for the channel to determine how to process the shifting pilot tones. Pilot logic may also determine channel and phase information updates such as channel state information and phase correction information from pilot tones. In situations of high SNR, logic may use channel estimates and phase rotations that are obtained from locations of the pilot tones for phase tracking and updating the equalizer. In situations of low SNR, logic may use the phase rotations for phase tracking and not update the equalizer during the OFDM transmission. Logic may also determine the presence or absence of a Doppler effect on the transmission and transmit a selection for N to an access point in response.

    摘要翻译： 导频逻辑可以基于信道和相位信息来确定如何处理在正交频分复用（OFDM）分组传输中每N个符号移位位置的导频音调。 导频逻辑可以确定信道的信噪比（SNR）以确定如何处理移位导频音。 导频逻辑还可以确定信道和相位信息更新，例如来自导频音调的信道状态信息和相位校正信息。 在高SNR的情况下，逻辑可以使用从用于相位跟踪和更新均衡器的导频音调的位置获得的信道估计和相位旋转。 在低SNR的情况下，逻辑可以使用相位旋转进行相位跟踪，并且在OFDM传输期间不更新均衡器。 逻辑还可以确定对传输的多普勒效应的存在或不存在，并且响应地向接入点发送N的选择。

    Device to-device (D2D) discovery without authenticating through cloud
    89.
    发明授权
    Device to-device (D2D) discovery without authenticating through cloud 有权
    设备到设备（D2D）发现，而不通过云进行身份验证

    公开(公告)号：US08594632B1

    公开(公告)日：2013-11-26

    申请号：US13711398

    申请日：2012-12-11

    申请人： Shahrnaz Azizi ,  Adrian P Stephens ,  Thomas J. Kenney ,  Eldad Perahia ,  Emily H. Qi ,  Minyoung Park

    发明人： Shahrnaz Azizi ,  Adrian P Stephens ,  Thomas J. Kenney ,  Eldad Perahia ,  Emily H. Qi ,  Minyoung Park

    IPC分类号： H04W4/02

    CPC分类号： H04W12/06 ,  H04W8/005 ,  H04W76/14 ,  H04W88/06

    摘要： Embodiments of device-to-device (D2D) discovery, authentication, and connection techniques are generally described herein. In an example, a device-to-device connection establishment technique may be performed directly between peer-to-peer wireless communication devices without obtaining authentication information from a cloud network or an external service. The device-to-device connection establishment technique may include a transmission of a discovery request to available devices, a transmission of a response from available devices including authentication data, and a verification of the authentication data. The authentication data may include previously stored image data associated with a device or human user associated with a device. In further examples, image processing and image recognition techniques may be used to verify a particular device or human user associated with a device.

    摘要翻译： 本文通常描述设备到设备（D2D）发现，认证和连接技术的实施例。 在一个示例中，可以在对等无线通信设备之间直接执行设备到设备连接建立技术，而不从云网络或外部服务获取认证信息。 设备到设备连接建立技术可以包括向可用设备发送发现请求，从包括认证数据的可用设备的响应的传输和认证数据的验证。 认证数据可以包括与与设备相关联的设备或人类用户相关联的先前存储的图像数据。 在另外的示例中，可以使用图像处理和图像识别技术来验证与设备相关联的特定设备或人类用户。