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31. 发明申请

US20160380722A1 ACCESS POINT (AP), USER STATION (STA) AND METHODS FOR VARIABLE LENGTH ENCODING AND FOR ITERATIVE DECODING 审中-公开
标题翻译：接入点（AP），用户站（STA）和可变长度编码和迭代解码的方法
公开(公告)号：US20160380722A1
公开(公告)日：2016-12-29
申请号：US14751064
申请日：2015-06-25
申请人： Mohamed K. Hassanin , Shahrnaz Azizi , Thomas J. Kenney , Eldad Perahia , Ahmed Gamal Helmy Mohamed
发明人： Mohamed K. Hassanin , Shahrnaz Azizi , Thomas J. Kenney , Eldad Perahia , Ahmed Gamal Helmy Mohamed
IPC分类号： H04L1/00 , H03M13/00 , H03M13/11
CPC分类号： H04L1/0041 , H03M13/116 , H03M13/1188 , H03M13/27 , H03M13/6516 , H03M13/6527 , H04L1/0045 , H04L1/005 , H04L1/0057 , H04L5/0007
摘要： Embodiments of an access point (AP), user station (STA), and method for variable length encoding are generally described herein. The AP may encode a block of input bits according to a parity check matrix to produce a low density parity check (LDPC) codeword. The parity check matrix may be included in a group of candidate parity check matrixes that includes a base parity check matrix and an expanded parity check matrix. An LDPC codeword length may be smaller for the base parity check matrix than for the expanded parity check matrix. The base parity check matrix may be used for the encoding when the LDPC codeword is transmitted for a legacy user station (STA). The expanded parity check matrix may be used when the LDPC codeword is transmitted for a non-legacy STA.
摘要翻译：本文通常描述接入点（AP），用户站（STA）以及用于可变长度编码的方法的实施例。 AP可以根据奇偶校验矩阵来编码输入比特块以产生低密度奇偶校验（LDPC）码字。奇偶校验矩阵可以被包括在包括基本奇偶校验矩阵和扩展奇偶校验矩阵的候选奇偶校验矩阵组中。对于基本奇偶校验矩阵，LDPC码字长度可以比扩展奇偶校验矩阵小。当为传统用户站（STA）发送LDPC码字时，基本奇偶校验矩阵可以用于编码。当为非传统STA发送LDPC码字时，可以使用扩展奇偶校验矩阵。

32. 发明申请

US20160212247A1 METHOD, APPARATUS, AND COMPUTER READABLE MEDIUM FOR SIGNALING HIGH EFFICIENCY PACKET FORMATS USING A LEGACY PORTION OF THE PREAMBLE IN WIRELESS LOCAL-AREA NETWORKS 有权
标题翻译：方法，装置和计算机可读介质，用于在无线局域网中使用前缀的LEGACY部分进行信号化高效分组格式
公开(公告)号：US20160212247A1
公开(公告)日：2016-07-21
申请号：US14751089
申请日：2015-06-25
申请人： Shahrnaz Azizi , Robert J. Stacey , Thomas J. Kenney , Eldad Perahia
发明人： Shahrnaz Azizi , Robert J. Stacey , Thomas J. Kenney , Eldad Perahia
IPC分类号： H04L29/08 , H04W84/12 , H04W80/04
CPC分类号： H04L5/0048 , H04B1/40 , H04L27/22 , H04L27/2613 , H04L69/323 , H04W84/12
摘要： Methods, apparatuses, and computer readable media for signaling high-efficiency packet formats using a legacy portion of the preamble in wireless local-area networks are disclosed. A high-efficiency (HE) wireless local area network (HEW) device including circuitry is disclosed. The circuitry may be configured to generate a HE packet comprising a legacy signal field (L-SIG) followed by one or more HE signal fields, and configure the L-SIG to signal to a second HEW device either a first packet format of the HE packet or a second packet format of the HE packet, where a length of the L-SIG modulo 3 is used to signal the first packet format or the second packet format. The circuitry may be configured to generate a duplicated L-SIG field with a polarity difference to indicate a third packet configuration of the HE packet or a fourth packet configuration of the HE packet.
摘要翻译：公开了用于在无线局域网中使用前导码的遗留部分来发送高效率分组格式的方法，设备和计算机可读介质。公开了一种包括电路的高效（HE）无线局域网（HEW）设备。电路可以被配置为生成包括传统信号字段（L-SIG），后跟一个或多个HE信号字段的HE分组，并且将L-SIG配置为向第二HEW设备发信号，或者以HE的第一分组格式分组或第二分组格式，其中使用L-SIG模3的长度来通知第一分组格式或第二分组格式。电路可以被配置为产生具有极性差异的复制的L-SIG字段，以指示HE分组的第三分组配置或HE分组的第四分组配置。

33. 发明申请

US20160165598A1 WIRELESS DEVICE, METHOD, AND COMPUTER READABLE MEDIA FOR ORTHOGONAL FREQUENCY DIVISION MULTIPLE ACCESS (OFDMA) ALLOCATIONS BASED ON A BASIC TONE RESOURCE UNIT OR ENTIRE SUB-CHANNEL 有权
标题翻译：基于基本音调单元或整个子频道的正交频分多址（OFDMA）分配的无线设备，方法和计算机可读介质
公开(公告)号：US20160165598A1
公开(公告)日：2016-06-09
申请号：US14670924
申请日：2015-03-27
申请人： Shahrnaz Azizi , Robert J. Stacey , Eldad Perahia , Thomas J. Kenney , Chittabrata Ghosh , Po-Kai Huang
发明人： Shahrnaz Azizi , Robert J. Stacey , Eldad Perahia , Thomas J. Kenney , Chittabrata Ghosh , Po-Kai Huang
IPC分类号： H04W72/04 , H04L5/00
CPC分类号： H04W72/0446 , H04L5/0007 , H04L5/0037 , H04W72/0413 , H04W72/042 , H04W72/0453 , H04W84/12
摘要： Wireless devices, methods, and computer readable media are disclosed. A high-efficiency wireless local-area network (HEW) master station is disclosed. The HEW master station may include circuitry. The circuitry may be configured to generate one or more resource allocations of a bandwidth for one or more HEW stations. Each resource allocation for a first portion of the bandwidth may be a multiple of a basic resource allocation or the entire first portion of the bandwidth. There may be only one resource allocation for a second portion of the bandwidth that is at least as large as the first portion of the bandwidth. In some embodiments, each resource allocation for the second portion of the bandwidth may be a multiple of the basic resource allocation or the entire second portion of the bandwidth.
摘要翻译：公开了无线设备，方法和计算机可读介质。公开了一种高效无线局域网（HEW）主站。 HEW主站可以包括电路。电路可以被配置为生成用于一个或多个HEW站的带宽的一个或多个资源分配。用于带宽的第一部分的每个资源分配可以是基本资源分配或带宽的整个第一部分的倍数。带宽的第二部分可能只有一个资源分配，其至少与带宽的第一部分一样大。在一些实施例中，用于带宽的第二部分的每个资源分配可以是基本资源分配的倍数或带宽的整个第二部分。

34. 发明申请

US20160050623A1 WIRELESS DEVICE, METHOD, AND COMPUTER READABLE MEDIA FOR SYNCHRONIZATION IN A WIRELESS LOCAL-AREA NETWORK 有权
标题翻译：无线设备，方法和计算机可读介质，用于在无线局域网中进行同步
公开(公告)号：US20160050623A1
公开(公告)日：2016-02-18
申请号：US14572351
申请日：2014-12-16
申请人： Thomas J. Kenney , Shahrnaz Azizi , Robert J. Stacey , Guoqing C. Li , Eldad Perahia
发明人： Thomas J. Kenney , Shahrnaz Azizi , Robert J. Stacey , Guoqing C. Li , Eldad Perahia
IPC分类号： H04W52/02 , H04W56/00 , H04L5/00 , H04J11/00
CPC分类号： H04W52/0216 , H04L5/0023 , H04L5/0048 , H04L5/0082 , H04W48/12 , H04W56/001 , H04W84/12 , Y02D70/1226 , Y02D70/1262 , Y02D70/142 , Y02D70/144 , Y02D70/146 , Y02D70/26
摘要： Wireless devices, methods, and computer readable media for synchronization in a wireless local-area network. A method on a wireless communication device may include tuning to a first subchannel based on a schedule received from an access point (AP) the schedule to indicate that the HEW device is assigned to the first subchannel. The method may further include determining a target beacon receive time and tuning to a second subchannel to receive the target beacon at the target beacon receive time. The method may further include receiving the target beacon on the second subchannel and tuning back to the first subchannel. A method on an AP for synchronization may include transmitting information that indicates a target beacon receive time on a subchannel. The method may include not transmitting to a wireless communication device operating on a second subchannel for a period of time before the target beacon receive time, and transmitting a target beacon on a first subchannel at the target beacon receive time.
摘要翻译：用于在无线局域网中进行同步的无线设备，方法和计算机可读介质。无线通信设备上的方法可以包括基于从接入点（AP）接收的调度来调整到第一子信道的调度，以指示HEW设备被分配给第一子信道。该方法还可以包括确定目标信标接收时间并调谐到第二子信道以在目标信标接收时间接收目标信标。该方法还可以包括在第二子信道上接收目标信标并且回调到第一子信道。用于同步的AP上的方法可以包括在子信道上发送指示目标信标接收时间的信息。该方法可以包括在目标信标接收时间之前的一段时间内不发送到在第二子信道上操作的无线通信设备，并且在目标信标接收时间在第一子信道上发送目标信标。

35. 发明申请

US20150139205A1 ACCESS POINT AND METHODS FOR DISTINGUISHING HEW PHYSICAL LAYER PACKETS WITH BACKWARDS COMPATIBILITY 有权
标题翻译：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。

36. 发明申请

US20150139118A1 MASTER STATION AND METHOD FOR HIGH-EFFICIENCY WI-FI (HEW) COMMUNICATION WITH A MINIMUM OFDMA BANDWIDTH UNIT 审中-公开
标题翻译：具有最小OFDMA带宽单元的高效无线（HEW）通信的主站和方法
公开(公告)号：US20150139118A1
公开(公告)日：2015-05-21
申请号：US14447254
申请日：2014-07-30
申请人： Shahrnaz Azizi , Eldad Perahia , Thomas J. Kenney
发明人： Shahrnaz Azizi , Eldad Perahia , Thomas J. Kenney
IPC分类号： H04W74/04 , H04L5/00
CPC分类号： H04L5/0048 , H04B7/0413 , H04B7/2615 , H04L1/0071 , H04L5/0007 , H04L5/001 , H04L5/003 , H04L5/0035 , H04L5/0037 , H04L5/0053 , H04L5/0094 , H04L5/0098 , H04L27/2602 , H04L27/261 , H04L27/3405 , H04L27/3483 , H04W52/0206 , H04W52/244 , H04W72/0406 , H04W72/042 , H04W72/0426 , H04W72/0453 , H04W72/0473 , H04W74/02 , H04W74/04 , H04W74/08 , H04W74/0808 , H04W84/12 , H04W88/08 , H04W88/10 , Y02D70/00 , Y02D70/122 , Y02D70/1262 , Y02D70/142 , Y02D70/449
摘要： Embodiments of a master station and method for communicating in a Wi-Fi network in accordance with a high-efficiency Wi-Fi (HEW) technique are generally described herein. In some embodiments, the master station is configured to communicate with scheduled stations using the antennas within a bandwidth comprising one or more 20 MHz Wi-Fi channels using a plurality of minimum orthogonal frequency division multiple access (OFDMA) bandwidth units during an OFDMA control period during which the master station has exclusive control of a wireless medium. Each minimum OFDMA bandwidth unit may comprise a predetermined number of subcarriers that do not include guard subcarriers of the channel wherein the guard subcarriers are provided at band edges of the bandwidth, the guard subcarriers being in addition to the subcarriers of each of the minimum OFDMA bandwidth units. In some embodiments, no guard subcarriers are provided between the minimum OFDMA bandwidth units within a 20 MHz channel.
摘要翻译：这里一般地描述根据高效Wi-Fi（HEW）技术在Wi-Fi网络中进行通信的主站和方法的实施例。在一些实施例中，主站被配置为在OFDMA控制周期期间使用多个最小正交频分多址（OFDMA）带宽单元在包括一个或多个20MHz Wi-Fi信道的带宽内使用天线进行通信在此期间，主站具有无线介质的排他控制。每个最小OFDMA带宽单元可以包括预定数量的子载波，其不包括信道的保护子载波，其中保护副载波被提供在带宽的带边缘处，保护子载波除了每个最小OFDMA带宽的子载波之外单位。在一些实施例中，在20MHz信道内的最小OFDMA带宽单元之间不提供保护副载波。

37. 发明授权

US08848841B2 Techniques to accommodate different classes of devices in a wireless network 有权
标题翻译：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。

38. 发明申请

US20140119280A1 METHODS AND ARRANGEMENTS TO MITIGATE COLLISIONS IN WIRELESS NETWORKS BY ENABLING COEXISTENCE OF DISPARATE BANDWIDTHS 有权
标题翻译：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。

39. 发明申请

US20140105123A1 TECHNIQUES TO MANAGE DWELL TIMES FOR PILOT ROTATION 有权
公开(公告)号：US20140105123A1
公开(公告)日：2014-04-17
申请号：US13725549
申请日：2012-12-21
申请人： Thomas J. Kenney , Eldad Perahia , Shahrnaz Azizi
发明人： Thomas J. Kenney , Eldad Perahia , Shahrnaz Azizi
IPC分类号： H04L5/00 , H04W72/04
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.

40. 发明申请

US20140010324A1 METHODS AND ARRANGEMENTS FOR SELECTING CHANNEL UPDATES IN WIRELESS NETWORKS 审中-公开
标题翻译：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。

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