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120 条记录 (耗时 0.038 秒)

    Methods and arrangements for phase tracking in wireless networks
    41.
    发明授权
    Methods and arrangements for phase tracking in wireless networks 有权
    无线网络中相位跟踪的方法和布置

    公开(公告)号：US09231809B2

    公开(公告)日：2016-01-05

    申请号：US13730941

    申请日：2012-12-29

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

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

    IPC分类号： H04L27/26 ,  H04L5/00 ,  H04L25/03 ,  H04L25/02

    CPC分类号： H04L27/2647 ,  H04L1/205 ,  H04L1/206 ,  H04L5/0048 ,  H04L25/0204 ,  H04L25/0224 ,  H04L25/03159 ,  H04L27/2657 ,  H04L27/2675 ,  H04L2025/03414

    摘要： Logic may determine phase correction information from pilot tones. Logic may determine phase correction information from some of the pilot locations. Logic may process the shifting pilot tones for less than all of the pilot tones. Logic may process pilot tones at any location within orthogonal frequency division multiplexing (OFDM) packet. Logic may determine to process only pilot tones at the even or odd symbol indices or subcarriers. And logic may transmit a packet with a frame with a capabilities information field comprising an indication that a receiver may can process shifting pilot tones for phase tracking.

    摘要翻译： 逻辑可以确定来自导频音的相位校正信息。 逻辑可以确定来自一些导频位置的相位校正信息。 逻辑可以处理少于所有导频音调的移动导频音。 逻辑可以在正交频分复用（OFDM）分组内的任何位置处理导频音。 逻辑可以确定仅在偶或奇符号索引或子载波处理导频音。 并且逻辑可以用具有能力信息字段的帧发送分组，能力信息字段包括接收机可以处理用于相位跟踪的移位导频音的指示。

    Methods and arrangements for orthogonal training sequences in wireless networks
    42.
    发明授权
    Methods and arrangements for orthogonal training sequences in wireless networks 有权
    无线网络中正交训练序列的方法和布置

    公开(公告)号：US09078237B2

    公开(公告)日：2015-07-07

    申请号：US13730989

    申请日：2012-12-29

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

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

    IPC分类号： H04W4/00 ,  H04W72/02 ,  H04L5/00 ,  H04L27/26

    CPC分类号： H04W72/02 ,  H04L5/0048 ,  H04L27/2613

    摘要： Logic may implement an orthogonal frequency division multiplexing (OFDM) system operating in the one gigahertz and lower frequency bands. Logic may detect new long training sequences that are differentially orthogonal to each other for a first bandwidth mode of operation such as a one megahertz mode as well as differentially orthogonal to half of the long training sequence for a second bandwidth mode of operation such as a two megahertz or greater mode. Logic may implement two or more long training sequences for the first bandwidth mode of operation to transmit information based upon the selection of the particular long training sequence for the transmission. Logic may implement a new acknowledgement packet comprising a short training sequence and a long training sequence without a signal field and without a payload. And logic may implement bandwidth detection logic to classify a transmission based upon orthogonal properties of the long training sequences.

    摘要翻译： 逻辑可以实现在一千兆赫和更低频带中工作的正交频分复用（OFDM）系统。 逻辑可以检测对于第一带宽操作模式（例如一兆赫兹模式）以及与第二带宽操作模式的两个长训练序列的一半差异正交的彼此差异正交的新的长训练序列，例如两个 兆赫或更大的模式。 逻辑可以实现用于第一带宽操作模式的两个或更多个长训练序列，以基于用于传输的特定长训练序列的选择来发送信息。 逻辑可以实现包括短训练序列和长训练序列的新的确认分组，而没有信号场并且没有有效载荷。 并且逻辑可以实现带宽检测逻辑以基于长训练序列的正交特性对传输进行分类。

    METHODS AND ARRANGEMENTS FOR A LOW POWER DEVICE IN WIRELESS NETWORKS
    45.
    发明申请
    METHODS AND ARRANGEMENTS FOR A LOW POWER DEVICE IN WIRELESS NETWORKS 有权
    无线网络中低功耗设备的方法和安排

    公开(公告)号：US20140185502A1

    公开(公告)日：2014-07-03

    申请号：US13730998

    申请日：2012-12-29

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

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

    IPC分类号： H04W88/02

    CPC分类号： H04W88/02 ,  H04L1/0015 ,  H04L1/0023 ,  H04L25/0226 ,  H04L27/18 ,  H04W8/22 ,  H04W52/028 ,  H04W84/12 ,  Y02D70/142 ,  Y02D70/144

    摘要： Some new low power architecture devices may, e.g., be associated with in a new device category in the IEEE 802.11ah Standard for devices with low power architecture. Some new low power architecture devices may only to support a subset of modulation and coding schemes (MCSs). Some new low power architecture devices negotiate the use of the subset of MCSs with an access point. Further new low power architecture devices address power consumption through modifications to the architecture of the new low power device. For instance, many new low power architecture devices remove, modify or bypass portions of the front-end transmitter circuitry and/or the front-end receiver circuitry such as a power amplifier, a low noise amplifier, predistortion circuitry, digital-to-analog and analog-to-digital converter resolutions, and stages of filtering.

    摘要翻译： 一些新的低功率架构设备可以例如与用于具有低功率架构的设备的IEEE 802.11ah标准中的新设备类别相关联。 一些新的低功率架构设备可能仅支持调制和编码方案（MCS）的子集。 一些新的低功率架构设备通过接入点协商MCS的子集的使用。 新的低功耗体系结构设备通过修改新的低功率设备的架构来解决功耗问题。 例如，许多新的低功率架构设备去除，修改或旁路前端发射机电路和/或前端接收机电路的部分，例如功率放大器，低噪声放大器，预失真电路，数模转换器 和模数转换器分辨率以及滤波阶段。

    METHODS AND ARRANGEMENTS FOR CHANNEL UPDATES IN WIRELESS NETWORKS
    46.
    发明申请
    METHODS AND ARRANGEMENTS FOR CHANNEL UPDATES IN WIRELESS NETWORKS 审中-公开
    无线网络中通道更新的方法和安排

    公开(公告)号：US20140050255A1

    公开(公告)日：2014-02-20

    申请号：US13730935

    申请日：2012-12-29

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

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

    IPC分类号： H04L27/26

    CPC分类号： H04L27/2666 ,  H04L5/0048 ,  H04L25/022 ,  H04L25/0224 ,  H04L27/2657 ,  H04L27/2675 ,  H04L27/2695

    摘要： 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.

    摘要翻译： 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 BEAMFORMING REPORTS IN WIRELESS NETWORKS
    47.
    发明申请
    METHODS AND ARRANGEMENTS FOR BEAMFORMING REPORTS IN WIRELESS NETWORKS 有权
    无线网络中波束报告的方法和安排

    公开(公告)号：US20140044112A1

    公开(公告)日：2014-02-13

    申请号：US13730914

    申请日：2012-12-29

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

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

    IPC分类号： H04W24/10

    CPC分类号： H04W24/10 ,  H04B7/0617 ,  H04B7/0643 ,  H04W16/28

    摘要： Logic of an access point may transmit a null data packet for beamforming training and transmit a beamforming report poll to the first station on a user list before receiving a transmission from the first station on the user list. Logic may wait for a timeout period to determine whether the first station on the user list will respond to the null data packet prior to transmitting the beamforming report poll. Logic may receive from the first station an indication that the first station is a slow beamforming report responder. Logic may reorder the user list to position a fast beamforming responder as the first station. And logic of the station may determine that the station is unable to complete and transmit the report so the logic may wait to transmit the beamforming report in response to a subsequent beamforming report poll frame.

    摘要翻译： 接入点的逻辑可以在从用户列表上的第一站接收到传输之前，发送用于波束成形训练的空数据分组，并将波束成形报告轮询发送到用户列表上的第一台。 逻辑可以等待超时时段来确定在发送波束成形报告轮询之前，用户列表上的第一站是否将响应空数据分组。 逻辑可以从第一站接收指示第一站是慢波束形成报告应答器的指示。 逻辑可以重新排序用户列表以将快速波束形成响应者定位为第一站。 并且站的逻辑可以确定站不能完成并发送报告，使得逻辑可以等待响应于随后的波束成形报告轮询帧来发送波束成形报告。

    MASTER STATION AND METHOD FOR HEW COMMUNICATION WITH SIGNAL FIELD CONFIGURATION FOR HEW OFDMA MU-MIMO WIDEBAND CHANNEL OPERATION
    48.
    发明申请
    MASTER STATION AND METHOD FOR HEW COMMUNICATION WITH SIGNAL FIELD CONFIGURATION FOR HEW OFDMA MU-MIMO WIDEBAND CHANNEL OPERATION 有权
    用于HAW OFDMA MU-MIMO宽带信道操作的信号场配置的主站和方法

    公开(公告)号：US20160242173A1

    公开(公告)日：2016-08-18

    申请号：US15023262

    申请日：2014-09-17

    申请人： Guoqing C. LI ,  Shahrnaz AZIZI ,  Thomas J. KENNEY ,  Eldad PERAHIA ,  Robert J. STACEY

    发明人： Guoqing C. Li ,  Shahrnaz Azizi ,  Thomas J. Kenney ,  Eldad Perahia ,  Robert J. Stacey

    IPC分类号： H04W72/04 ,  H04L27/26 ,  H04L5/00 ,  H04B7/04

    CPC分类号： H04W72/0433 ,  H04B7/0452 ,  H04L5/0023 ,  H04L5/003 ,  H04L5/0094 ,  H04L27/2602 ,  H04W72/0453 ,  H04W84/12 ,  Y02D70/10

    摘要： Embodiments of master station and method for high-efficiency WLAN (HEW) communication are generally described herein. In some embodiments, the master station is configured for HEW communication in accordance with an IEEE 802.11ax technique. The master station may transmit an indication to one or more of a plurality of HEW stations to indicate which one of a plurality of 20 MHz channels to monitor for a HEW signal field. The master station may configure the HEW signal field to indicate which of a plurality of subchannels of the indicated 20 MHz channel is allocated to the HEW stations for communication. The master station may transmit the configured HEW signal field in the indicated one of the 20 MHz channels and may communicate with the HEW stations on the indicated subchannels in accordance with an orthogonal-frequency divisional multiple access (OFDMA) technique.

    摘要翻译： 这里一般地描述用于高效率WLAN（HEW）通信的主站和方法的实施例。 在一些实施例中，主站被配置用于根据IEEE 802.11ax技术的HEW通信。 主站可以向多个HEW站中的一个或多个HTS站发送指示，以指示监视HEW信号域的多个20MHz信道中的哪一个。 主站可以配置HEW信号字段以指示所指示的20MHz信道的多个子信道中的哪一个子信道被分配给HEW站进行通信。 主站可以在所指示的20MHz信道中发送配置的HEW信号字段，并且可以根据正交频分多址（OFDMA）技术与所指示的子信道上的HEW站进行通信。

    SHORTENED TRAINING FIELD PREAMBLE STRUCTURE FOR HIGH EFFICIENCY WI-FI ENVIRONMENT
    49.
    发明申请
    SHORTENED TRAINING FIELD PREAMBLE STRUCTURE FOR HIGH EFFICIENCY WI-FI ENVIRONMENT 审中-公开
    用于高效无线环境的紧凑的培训领域前置结构

    公开(公告)号：US20150124843A1

    公开(公告)日：2015-05-07

    申请号：US14127284

    申请日：2013-11-04

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

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

    IPC分类号： H04L7/00 ,  H04L7/04

    CPC分类号： H04L7/0016 ,  H04L7/04 ,  H04L7/041 ,  H04L27/2613 ,  H04L27/2657 ,  H04W56/0035

    摘要： The disclosure generally relates to a shortened training field preamble structure for high-efficiency Wi-Fi environments. In one embodiment, the disclosure relates to a communication system having a transmitter transmitting a Master-Sync packet received by stationary and mobile receivers. The Master-Sync packet contains information for communicating in a HEW environment. Upon receipt each receiver decodes the Master-Sync packet to (i) estimate a frequency offset and/or an automatic gain control (AGC) setting; (ii) select a transmission frequency consistent with the frequency offset; and/or (iii) determine a new transmission power consistent with the AGC; (iv) tune to a new frequency offset and gain control setting to receive subsequent packets from the transmitter.

    摘要翻译： 本公开一般涉及用于高效Wi-Fi环境的缩短的训练场前同步码结构。 在一个实施例中，本公开涉及一种具有发射机的通信系统，所述发射机发送由固定和移动接收机接收的主同步分组。 主同步数据包包含用于在HEW环境中通信的信息。 在接收到每个接收器时，解码主同步分组以（i）估计频偏和/或自动增益控制（AGC）设置; （ii）选择与频率偏移一致的传输频率; 和/或（iii）确定与AGC一致的新传输功率; （iv）调谐到新的频率偏移和增益控制设置以接收来自发射机的后续分组。

    TECHNIQUES TO MANAGE DWELL TIMES FOR PILOT ROTATION
    50.
    发明申请
    TECHNIQUES TO MANAGE DWELL TIMES FOR PILOT ROTATION 有权
    用于管理转向时间的技术

    公开(公告)号：US20140321564A1

    公开(公告)日：2014-10-30

    申请号：US14325936

    申请日：2014-07-08

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

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

    IPC分类号： H04L27/26 ,  H04L5/00

    CPC分类号： H04L27/2626 ,  H04L1/0002 ,  H04L1/0009 ,  H04L5/0007 ,  H04L5/003 ,  H04L5/0048 ,  H04L5/005 ,  H04L25/0224 ,  H04L25/0228 ,  H04L25/025 ,  H04L25/03019 ,  H04L2025/03617 ,  H04W72/04 ,  H04W72/0453 ,  H04W84/12

    摘要： Techniques to manage dwell times for pilot rotation are described. An apparatus may comprise a memory configured to store a data structure with a set of modulation and coding schemes (MCS) available to an orthogonal frequency division multiplexing (OFDM) system, each MCS having an associated pilot dwell time. The apparatus may further comprise a processor circuit coupled to the memory, the processor circuit configured to identify a MCS to communicate a packet using multiple subcarriers of the OFDM system, and retrieve a pilot dwell time associated with the MCS from the memory, the pilot dwell time to indicate when to shift a pilot tone between subcarriers of the multiple subcarriers during communication of the packet. Other embodiments are described and claimed.

    摘要翻译： 描述了管理驾驶员旋转停留时间的技术。 装置可以包括被配置为利用可用于正交频分复用（OFDM）系统的一组调制和编码方案（MCS））来存储数据结构的存储器，每个MCS具有相关的导频停留时间。 该装置还可以包括耦合到存储器的处理器电路，处理器电路被配置为识别MCS以使用OFDM系统的多个子载波来传送分组，并且从存储器检索与MCS相关联的导频停留时间，导频驻留 指示何时在分组的通信期间在多个子载波的子载波之间移动导频音。 描述和要求保护其他实施例。