公开(公告)号：US20230094487A1

公开(公告)日：2023-03-30

申请号：US18073395

申请日：2022-12-01

Applicant: Qinghua LI ,  Assaf GUREVITZ ,  Robert STACEY ,  Shlomi VITURI ,  Hao SONG

Inventor： Qinghua LI ,  Assaf GUREVITZ ,  Robert STACEY ,  Shlomi VITURI ,  Hao SONG

IPC: H04L27/36 ,  H04L1/00 ,  H04L27/34

Abstract: This disclosure describes systems, methods, and devices related to byte boundary shift. A device may utilize a probabilistic constellation shaping mechanism comprising a shaping encoder, a channel encoder, and a modulator to generate one or more QAM symbols. The device may set a shaping output block to have a fixed length of output bits. The device may set shaping input bits used in the shaping encoder, wherein the input bits are a multiple of a first number of bits.

公开(公告)号：US20210044333A1

公开(公告)日：2021-02-11

申请号：US17078366

申请日：2020-10-23

Applicant: Feng Jiang ,  Qinghua Li ,  Xiaogang Chen ,  Po-Kai Huang ,  Danny Alexander ,  Chen Kojokaro ,  Assaf Gurevitz ,  Ziv Avital

Inventor： Feng Jiang ,  Qinghua Li ,  Xiaogang Chen ,  Po-Kai Huang ,  Danny Alexander ,  Chen Kojokaro ,  Assaf Gurevitz ,  Ziv Avital

IPC: H04B7/024 ,  H04B7/06

Abstract: An access point (AP) configured for multi-AP coordinated beamforming (CBF) and multi-AP joint transmission (JT) in an Extremely High Throughput (EHT) wireless local area network (WLAN), when operating as a master AP (AP1) in a multi-AP network, is configured to encode a null data packet announcement (NDPA) frame for multi-AP channel sounding. The NDPA is configured for transmission to a second AP (AP2) and a plurality of stations (STAs) of an EHT group. The NDPA may be encoded to have an information field indicating whether a sounding sequence type is for JT channel sounding or CBF channel sounding. The NDPA may further be encoded to include fields identifying the APs participating in the channel sounding. In these embodiments, the channel sounding sequence for JT can be reused for the channel sounding on CBF.

公开(公告)号：US20160173209A1

公开(公告)日：2016-06-16

申请号：US14571827

申请日：2014-12-16

Applicant: Assi Jakoby ,  Assaf Gurevitz ,  Rotem Avivi ,  Shimon Solodkin ,  Bruno Jechoux

Inventor： Assi Jakoby ,  Assaf Gurevitz ,  Rotem Avivi ,  Shimon Solodkin ,  Bruno Jechoux

IPC: H04B15/06 ,  H04B1/04 ,  H04W4/00

CPC classification number: H04B15/06 ,  H04B1/0475 ,  H04B1/10 ,  H04B1/109 ,  H04B1/525 ,  H04B1/7103 ,  H04B15/00 ,  H04W4/80

Abstract: Described herein are technologies related to an implementation of harmonic spurs mitigation in a receiver of a portable device.

Abstract translation: 这里描述了与便携式设备的接收机中的谐波杂散减轻的实现相关的技术。

公开(公告)号：US09154169B2

公开(公告)日：2015-10-06

申请号：US13995785

申请日：2011-12-27

Applicant: Amir Rubin ,  Assaf Gurevitz ,  Gil Paryanti

Inventor： Amir Rubin ,  Assaf Gurevitz ,  Gil Paryanti

IPC: H04L27/28 ,  H04L1/02 ,  H04B1/12 ,  H04L27/26 ,  H04L25/03 ,  H04L27/00

CPC classification number: H04B1/12 ,  H04L25/03159 ,  H04L25/03993 ,  H04L27/2647 ,  H04L27/2657 ,  H04L27/2671 ,  H04L2027/003 ,  H04L2027/0034 ,  H04L2027/0038 ,  H04L2027/0046 ,  H04L2027/0067 ,  H04L2027/0085

Abstract: Fractional symbol based phase noise mitigation, including methods and systems to determine phase noise trajectory, or indication of phase noise, for each of multiple fractional portions of a frequency domain symbol, and modify the symbol based on the phase noise trajectories of the subsets. Multiple correction hypotheses may be generated for each fractional portion of the symbol based on pre-defined phase noise hypotheses. The correction hypotheses may include frequency domain correction hypotheses. The correction hypotheses for a subset may be evaluated to select one of the phase noise hypotheses as the trajectory for the subset. The evaluation may include applying each correction hypothesis to a corresponding equalized frequency domain symbol to generate corresponding symbol hypotheses, computing a signal quality for each symbol hypothesis, and comparing the signal qualities. Signal qualities may be determined as error vector magnitudes, and may be based on all or a subset of corresponding symbol tones.

Abstract translation: 基于分数符号的相位噪声减轻，包括确定相位噪声轨迹的方法和系统，或相位噪声的指示，用于频域符号的多个小数部分中的每一个，并且基于子集的相位噪声轨迹修改符号。 可以基于预定义的相位噪声假设为符号的每个小数部分生成多个校正假设。 修正假设可能包括频域校正假设。 可以评估子集的校正假设以选择相位噪声假设之一作为子集的轨迹。 评估可以包括将每个校正假设应用于对应的均衡频域符号以产生相应的符号假设，计算每个符号假设的信号质量，以及比较信号质量。 信号质量可以被确定为误差矢量幅度，并且可以基于相应符号音调的全部或一个子集。

公开(公告)号：US08964914B2

公开(公告)日：2015-02-24

申请号：US13976071

申请日：2011-08-30

Applicant: Rotem Avivi ,  Assaf Gurevitz ,  Tzahi Weisman

Inventor： Rotem Avivi ,  Assaf Gurevitz ,  Tzahi Weisman

IPC: H04B1/10 ,  H04B7/08 ,  H04L1/06 ,  H04B7/06

CPC classification number: H04B7/0885 ,  H04B7/0669 ,  H04B7/084 ,  H04L1/06

Abstract: Some demonstrative embodiments include devices, systems and/or methods of combining received wireless communication signals. For example, a device may include a radio-frequency (RF) combiner to combine first and second wireless communication RF signals of a wireless communication frame received via first and second respective antennas, into a combined signal; and a base-band phase estimator to estimate a phase difference between the first and the second antennas, and to provide to the RF combiner a feedback corresponding to the phase difference, wherein the radio-frequency combiner is to combine the first and the second RF signals according to the feedback.

Abstract translation: 一些演示实施例包括组合所接收的无线通信信号的设备，系统和/或方法。 例如，设备可以包括射频（RF）组合器，以将通过第一和第二相应天线接收的无线通信帧的第一和第二无线通信RF信号组合成组合信号; 以及基带相位估计器，用于估计第一和第二天线之间的相位差，并向RF组合器提供对应于相位差的反馈，其中，射频组合器将第一和第二RF 信号根据反馈。

公开(公告)号：US20100046547A1

公开(公告)日：2010-02-25

申请号：US11858471

申请日：2007-09-20

Applicant: Assaf Gurevitz ,  Uri Perlmutter ,  Tzahi Weisman ,  Assi Jakoby

Inventor： Assaf Gurevitz ,  Uri Perlmutter ,  Tzahi Weisman ,  Assi Jakoby

IPC: H04J3/24

CPC classification number: H04L69/22

Abstract: A method and apparatus for decoding a frame control header message in a wireless communication transmission are disclosed. The method comprises assuming at least some of the bits comprising the frame control header message are constant across multiple frames or are known a priori and generating metrics at least from the bits of the frame control header message that are assumed to be constant or are known a priori. The method further comprises decoding the metrics, for example, with a Viterbi decoder or using chase combining, to yield the decode frame control header message.

Abstract translation: 公开了一种在无线通信传输中对帧控制报头消息进行解码的方法和装置。 该方法包括假设包括帧控制报头消息的至少一些比特在多个帧中是恒定的，或者是先验已知的，并且至少从帧控制报头消息的比特中产生度量，该比特被假定为恒定的或已知的 先验的 该方法还包括例如使用维特比解码器或使用追踪合并来解码度量，以产生解码帧控制报头消息。

公开(公告)号：US20080063094A1

公开(公告)日：2008-03-13

申请号：US11516902

申请日：2006-09-07

Applicant: Assaf Gurevitz ,  Uri Perlmutter

Inventor： Assaf Gurevitz ,  Uri Perlmutter

IPC: H04K1/10 ,  H04L27/06

CPC classification number: H04L27/2649 ,  H04L27/2656 ,  H04L27/2676

Abstract: Embodiments of methods and means for auto-correlating wireless signal samples are provided. Such embodiments include local normalization of each signal sample by a root mean square level of samples that preceded it, prior to any summation of the auto-correlation procedure. These auto-correlated signal samples are then used to distinguish downlink from uplink signals present within the signal sample set. Other embodiments include auto-correlation techniques in which no normalization is performed at any time with respect to the summation procedure. Such auto-correlated samples are then scanned to detect a preamble symbol or symbols within the signal samples. Reliable and expeditious wireless communications under WiMAX 802.16e and other protocols can be achieved in accordance with the present embodiments.

Abstract translation: 提供了用于自动相关无线信号样本的方法和装置的实施例。 这样的实施例包括在自相关过程的任何求和之前，通过其前面的样本的均方根水平来对每个信号样本进行局部归一化。 然后，这些自动相关信号样本用于将下行链路与信号样本集中存在的上行链路信号区分开来。 其他实施例包括其中相对于求和过程在任何时间不进行规范化的自相关技术。 然后扫描这样的自相关样本以检测信号样本内的前导符号或符号。 根据本实施例，可以实现在WiMAX 802.16e和其他协议下的可靠和快速的无线通信。

公开(公告)号：US20240283561A1

公开(公告)日：2024-08-22

申请号：US18650378

申请日：2024-04-30

Applicant: Hao Song ,  Yoav Eisenberg ,  Assaf Gurevitz ,  Thomas J. Kenney ,  Qinghua Li

Inventor： Hao Song ,  Yoav Eisenberg ,  Assaf Gurevitz ,  Thomas J. Kenney ,  Qinghua Li

IPC: H04L1/00 ,  H04W28/06

CPC classification number: H04L1/0003 ,  H04W28/065

Abstract: This disclosure describes systems, methods, and devices for signaling multiple modulation and coding schemes for a single user. A device may generate a common field of an ultra-high reliability signal (UHR-SIG) content channel field, the common field including signaling for station devices; generate a number of spatial streams (NSS) subfield of a user specific field of the UHR-SIG content channel field, the user specific field addressed to a first station device of the multiple station devices; generate a 6-bit modulation and coding scheme (MCS) subfield of the user specific field, wherein the 6-bit MCS subfield maps, based on a number of spatial streams signaled by the NSS subfield, to one or more MCSs assigned to the first station device; generate a frame including the UHR-SIG content channel field, wherein a user field of the user specific field includes at least 22 bits including the MCS subfield; and send the frame.

公开(公告)号：US20230087449A1

公开(公告)日：2023-03-23

申请号：US18073281

申请日：2022-12-01

Applicant: Qinghua LI ,  Juan FANG ,  Assaf GUREVITZ ,  Thomas J. KENNEY ,  Robert STACEY

Inventor： Qinghua LI ,  Juan FANG ,  Assaf GUREVITZ ,  Thomas J. KENNEY ,  Robert STACEY

IPC: H04L27/26

Abstract: This disclosure describes systems, methods, and devices related to extended range modulation and coding scheme (MCS). A device may generate a first orthogonal frequency-division multiplexing (OFDM) signal to be transmitted in a frequency band. The device may generate a second OFDM signal to be transmitted in the frequency band, wherein the second OFDM signal is a duplicate of the first signal. The device may assign a reduced number of guard intervals (GIs) to the first OFDM signal and the second OFDM signal. The device may cause to send the first OFDM signal and the second OFDM signal using the frequency band.

公开(公告)号：US20210120426A1

公开(公告)日：2021-04-22

申请号：US17134021

申请日：2020-12-24

Applicant: Qinghua Li ,  Feng Jiang ,  Jonathan Segev ,  Xiaogang Chen ,  Assaf Gurevitz ,  Gadi Shor ,  Robert Stacey

Inventor： Qinghua Li ,  Feng Jiang ,  Jonathan Segev ,  Xiaogang Chen ,  Assaf Gurevitz ,  Gadi Shor ,  Robert Stacey

IPC: H04W12/63 ,  H04W12/50 ,  H04B17/309 ,  H04L5/00 ,  H04W12/122 ,  H04W24/10

Abstract: This disclosure describes systems, methods, and devices related to enhanced feedback for secure mode wireless communications. A device may send a first null data packet (NDP) to a second device, and identify a second NDP received from the second device. The device may identify a location measurement report (LMR) received from the second device, the LMR including a first channel response indicative of a first arrival time of the first NDP at the second device and a first phase shift associated with the first NDP. The device may generate a second channel response indicative of a second arrival time of the second NDP at the device and a second phase shift associated with the second NDP. The device may determine that the first channel response does not match the second channel response, and may identify an attempted attack.