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31. 发明授权

US09313301B2 Systems, methods, and apparatus for a low rate PHY structure 有权
标题翻译：用于低速率PHY结构的系统，方法和装置
公开(公告)号：US09313301B2
公开(公告)日：2016-04-12
申请号：US13977553
申请日：2011-12-13
申请人： Thomas J. Kenney , Eldad Perahia
发明人： Thomas J. Kenney , Eldad Perahia
IPC分类号： H04L12/42 , H04L29/06 , H04W80/00 , H04L29/08 , H04L27/26
CPC分类号： H04L27/2613 , H04L69/22 , H04L69/323 , H04W80/00 , H04W84/12
摘要： Certain embodiments of the invention may include systems, methods, and apparatus for a low rate PHY structure. According to an example embodiment of the invention, a method is provided for generating a low rate PHY structure with low overhead. The method may include generating a preamble comprising one or more training fields; generating a data field; grouping the preamble and the data field into a low rate PHY structure; and converting the low rate PHY structure for wireless transmission over a hardware transmission medium.
摘要翻译：本发明的某些实施例可以包括用于低速率PHY结构的系统，方法和装置。根据本发明的示例实施例，提供了一种用于生成具有低开销的低速率PHY结构的方法。该方法可以包括产生包括一个或多个训练场的前同步码; 生成数据字段; 将前同步码和数据字段分组成低速率PHY结构; 以及通过硬件传输介质转换用于无线传输的低速率PHY结构。

32. 发明申请

US20140050259A1 METHODS AND ARRANGEMENTS FOR PHASE TRACKING IN WIRELESS NETWORKS 审中-公开
标题翻译：无线网络中相位跟踪的方法和布置
公开(公告)号：US20140050259A1
公开(公告)日：2014-02-20
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
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。

33. 发明申请

US20130329815A1 SYSTEMS AND METHODS FOR IMPLEMENTING IMPROVED FREQUENCY ESTIMATION 有权
标题翻译：用于实现改进的频率估计的系统和方法
公开(公告)号：US20130329815A1
公开(公告)日：2013-12-12
申请号：US13682835
申请日：2012-11-21
申请人： Thomas J. Kenney , Eldad Perahia , Shahrnaz Azizi
发明人： Thomas J. Kenney , Eldad Perahia , Shahrnaz Azizi
IPC分类号： H04B1/14 , H04L27/02
CPC分类号： H04B1/14 , H04L27/02 , H04L27/2613 , H04L27/2657 , H04L27/266 , H04L27/2675 , H04L27/2678 , H04L27/2688
摘要： A system and method are provided for implementing improved frequency estimation for wireless communications in support of a broader set of use cases including outdoor use cases and use cases that involve lower power transmissions with reduced signal-to-noise ratios for receivers particularly in systems configured according to the pending IEEE 802.11 ah standard. These systems and methods provide greatly improved frequency estimation over that prescribed for devices operating according other IEEE 802.11 standards, including the frequency estimator conventionally used in systems operated according to the IEEE 802.11n standards, and the proposed frequency estimator specified for IEEE 802.11ac systems. The disclosed techniques facilitate improved frequency estimation schemes that reuse of a short training field (STF) stored in memory, employ joint STF-long training field (LTF) estimation, use portions of a guard interval (GI), and create of multiple-phase estimates, with different symbol separation to improve a signal-to-noise ratio of the frequency estimate.
摘要翻译：提供了一种用于实现用于无线通信的改进的频率估计的系统和方法，以支持更广泛的用例集合，包括户外用例和涉及具有降低的接收机信噪比的较低功率传输的用例，特别是在根据到待定的IEEE 802.11 ah标准。这些系统和方法提供了大大改进的频率估计，其对于根据其他IEEE 802.11标准操作的设备规定的频率估计，包括常规用于根据IEEE 802.11n标准操作的系统中的频率估计器以及为IEEE 802.11ac系统指定的所提出的频率估计器。所公开的技术有助于改进频率估计方案，其重新使用存储在存储器中的短训练场（STF），采用联合STF长训练场（LTF）估计，使用保护间隔（GI）的部分，并创建多相估计，用不同的符号分隔来提高频率估计的信噪比。

34. 发明申请

US20130235714A1 METHOD AND APPARATUS FOR A 1 MHZ LONG TRAINING FIELD DESIGN 失效
标题翻译： 1 MHZ长训练场设计的方法与装置
公开(公告)号：US20130235714A1
公开(公告)日：2013-09-12
申请号：US13532056
申请日：2012-06-25
申请人： Shahrnaz Azizi , Thomas J. Kenney , Eldad Perahia
发明人： Shahrnaz Azizi , Thomas J. Kenney , Eldad Perahia
IPC分类号： H04J11/00 , H04W84/12
CPC分类号： H04L69/22 , H04L27/2613 , H04L27/2666 , H04L2012/5652
摘要： An approach is provided for defining a 1 MHz preamble of a packet. The approach involves determining a preamble sequence of a packet, the preamble sequence having a determinable length. The approach also involves causing, at least in part, the preamble sequence to be divided into a predetermined number of blocks. The approach further involves causing, at least in part, a mathematical operation and a summation over the predetermined number of blocks and a corresponding number of received blocks. The approach also involves causing, at least in part, the summation to be maximized to determine the preamble sequence corresponds to one of a first bandwidth or a second bandwidth, the second bandwidth being greater than the first bandwidth, to determine a type of the packet.
摘要翻译：提供了一种用于定义分组的1MHz前导码的方法。该方法涉及确定分组的前导序列，该前导序列具有可确定的长度。该方法还包括至少部分地将前导码序列分成预定数量的块。该方法还包括至少部分地导致数学运算和超过预定数量的块和相应数量的接收块的求和。该方法还包括至少部分地使求和最大化以确定前导序列对应于第一带宽或第二带宽中的一个，第二带宽大于第一带宽，以确定分组的类型。

35. 发明申请

US20110158337A1 OFDM TRANSMITTER AND METHODS FOR REDUCING THE EFFECTS OF SEVERE INTERFERENCE WITH SYMBOL LOADING 有权
标题翻译： OFDM发射机和减少严重干扰对符号加载的影响的方法
公开(公告)号：US20110158337A1
公开(公告)日：2011-06-30
申请号：US12889651
申请日：2010-09-24
申请人： Qinghua Li , Huaning Niu , Yuan Zhu , Xintian E. Lin , Xiaogang Chen , Alexei Vladimirovich Davydov , Thomas J. Kenney , Eldad Perahia
发明人： Qinghua Li , Huaning Niu , Yuan Zhu , Xintian E. Lin , Xiaogang Chen , Alexei Vladimirovich Davydov , Thomas J. Kenney , Eldad Perahia
IPC分类号： H04L27/28 , H04L25/03 , H04B15/00
CPC分类号： H04B7/0617 , H04B7/0413 , H04L1/0606 , H04L25/08 , H04L27/2626 , H04L27/2634 , H04L27/3444 , H04W52/10 , H04W52/146 , H04W52/36 , H04W72/082
摘要： Embodiments of an OFDM transmitter and method of reducing the effects of interference on subcarriers in an OFDM system by symbol loading are disclosed herein. A linear transformation is performed on a group of two or more input data symbols that are mapped to different signal dimensions to generate a corresponding two or more output data symbols. Each of the output data symbols has an increased number of constellation points. Each output data symbol is configured for transmission within one of the different signal dimensions. The linear transformation is configured so that each of the two or more output data symbols carry the information of each of the input data symbols of the group. This coding together of input data symbols that are mapped to different signal dimensions may provide improved reliability against fading and severe interference. The different signal dimensions may comprise a frequency, a time and/or a space dimension.
摘要翻译：本文公开了OFDM发射机的实施例和通过符号加载来减少OFDM系统中的干扰对子载波的影响的方法。对映射到不同信号尺寸的两个或更多个输入数据符号的一组进行线性变换，以生成对应的两个或更多个输出数据符号。每个输出数据符号具有增加的星座点数。每个输出数据符号被配置为在不同信号尺寸之一内传输。线性变换被配置为使得两个或更多个输出数据符号中的每一个携带组中的每个输入数据符号的信息。将映射到不同信号尺寸的输入数据符号进行编码可以提供改善的抗衰落和严重干扰的可靠性。不同的信号尺寸可以包括频率，时间和/或空间维度。

36. 发明申请

US20170034317A1 METHODS AND ARRANGEMENTS TO EXTEND OPERATIONAL BANDWIDTH 审中-公开
标题翻译：方法和安排延长操作带宽
公开(公告)号：US20170034317A1
公开(公告)日：2017-02-02
申请号：US15106277
申请日：2013-12-28
申请人： Thomas J. Kenney , Eldad Perahia , Shahrnaz Azizi
发明人： Thomas J. Kenney , Eldad Perahia , Shahrnaz Azizi
IPC分类号： H04L29/06 , H04W72/04
CPC分类号： H04L69/22 , H04L27/2626 , H04L69/323 , H04W72/044 , H04W84/12
摘要： Logic may parse a data stream into two or more 80 megahertz or 160 megahertz bandwidth frequency segments. Logic may parse a data stream into two or more frequency segments having a total bandwidth of greater than 160 megahertz. Logic may deparse the data stream prior to transmitting the data stream to transmit a communication with a contiguous bandwidth of greater than 160 megahertz. Logic may deparse the data stream prior to space-time block coding of the data stream. Logic may transmit the data stream in two or more frequency segments having a total bandwidth of greater than 160 megahertz. Logic may receive a communication with a contiguous bandwidth or two or more frequency segments with contiguous or non-contiguous bandwidths. Logic may parse a communication with a contiguous bandwidth into two or more frequency segments. And logic may deparse the frequency segments to decode the communication.
摘要翻译：逻辑可以将数据流解析为两个或更多个80兆赫兹或160兆赫兹带宽频率段。逻辑可以将数据流解析成具有大于160兆赫的总带宽的两个或更多个频段。在发送数据流之前，逻辑可能会使数据流松散，以传输具有大于160兆赫兹的连续带宽的通信。在数据流的空时块编码之前，逻辑可以削弱数据流。逻辑可以在总带宽大于160兆赫兹的两个或多个频段中发送数据流。逻辑可以接收具有连续带宽或具有连续或不连续带宽的两个或多个频率段的通信。逻辑可以将具有连续带宽的通信解析为两个或更多个频率段。并且逻辑可以削弱频段以解码通信。

37. 发明申请

US20160381684A1 ACCESS POINT (AP), USER STATION (STA) AND METHOD FOR SPATIAL MODULATION ORTHOGONAL FREQUENCY DIVISION MULTIPLEXING (SM-OFDM) COMMUNICATION 有权
标题翻译：接入点（AP），用户站（STA）和用于空间调制正交频分多址（SM-OFDM）通信的方法
公开(公告)号：US20160381684A1
公开(公告)日：2016-12-29
申请号：US14748791
申请日：2015-06-24
申请人： Ahmed Gamal Helmy Mohamed , Eldad Perahia , Shahrnaz Azizi , Thomas J. Kenney , Mohamed K. Hassanin
发明人： Ahmed Gamal Helmy Mohamed , Eldad Perahia , Shahrnaz Azizi , Thomas J. Kenney , Mohamed K. Hassanin
IPC分类号： H04W72/04 , H04L1/00 , H04B7/02
CPC分类号： H04L1/0071 , H04B7/028 , H04L1/0041 , H04L5/0023 , H04L5/0044
摘要： Embodiments of an access point (AP), user station (STA), and method for spatial modulation orthogonal frequency division multiplexing (SM-OFDM) communication in a wireless network are generally described herein. The AP may transmit an SM-OFDM signal that comprises multiple OFDM signals. The SM-OFDM signal may be transmitted in channel resources that comprise multiple sub-carriers and the OFDM signals may be based at least partly on data symbols for used data portions of the sub-carriers. The used data portions may be based on a first portion of encoded bits and the data symbols for the used data portions may be based on a second portion of the encoded bits. In some examples, the used data portions of the sub-carriers may be different for at least some of the OFDM signals.
摘要翻译：无线网络中用于空间调制正交频分复用（SM-OFDM）通信的接入点（AP），用户站（STA）和方法的实施例在这里通常被描述。 AP可以发送包括多个OFDM信号的SM-OFDM信号。可以在包括多个子载波的信道资源中发送SM-OFDM信号，并且OFDM信号可以至少部分地基于用于子载波的使用数据部分的数据符号。所使用的数据部分可以基于编码比特的第一部分，并且所使用的数据部分的数据符号可以基于编码比特的第二部分。在一些示例中，对于至少一些OFDM信号，子载波的使用数据部分可以是不同的。

38. 发明申请

US20160249303A1 Power Control for High Efficiency Wireless Local Area Network 审中-公开
标题翻译：高效无线局域网功率控制
公开(公告)号：US20160249303A1
公开(公告)日：2016-08-25
申请号：US14744702
申请日：2015-06-19
申请人： Thomas J. Kenney , Chittabrata Ghosh , Shahrnaz Azizi , Eldad Perahia
发明人： Thomas J. Kenney , Chittabrata Ghosh , Shahrnaz Azizi , Eldad Perahia
IPC分类号： H04W52/24 , H04W24/08
CPC分类号： H04W52/248 , H04W24/08 , H04W52/245 , H04W84/12
摘要： This disclosure describes methods, device, and systems related to power control. A first device comprising one or more processors and one or more transceiver components may identify a trigger frame received from a second device, the trigger frame comprising one or more fields. The first device may select a resource unit of an operating channel in accordance with Orthogonal Frequency-Division Multiple Access (OFDMA) standard. The first device may measure a power level of a first field of the trigger frame. The first device may determine a transmit power level based at least in part on measuring the power level of the first field. The first device may cause to send to the second device, one or more signals based at least in part on the transmit power level. The methods, apparatus, and systems described herein can be applied to 802.11ax or any other wireless standard.
摘要翻译：本公开描述了与功率控制相关的方法，设备和系统。包括一个或多个处理器和一个或多个收发机组件的第一设备可以标识从第二设备接收的触发帧，所述触发帧包括一个或多个字段。第一设备可以根据正交频分多址（OFDMA）标准来选择操作信道的资源单元。第一设备可以测量触发帧的第一场的功率电平。第一设备可以至少部分地基于测量第一场的功率水平来确定发射功率水平。第一设备可以使得至少部分地基于发射功率电平向第二设备发送一个或多个信号。本文描述的方法，装置和系统可以应用于802.11ax或任何其它无线标准。

39. 发明申请

US20160173246A1 WIRELESS DEVICES, COMPUTER-READABLE MEDIA, AND METHODS FOR HIGH-EFFICIENCY LOCAL-AREA NETWORK (HEW) DISTRIBUTED SUB-CARRIER ALLOCATION 有权
标题翻译：无线设备，计算机可读介质和用于高效本地区网（HEW）分布式子载波分配的方法
公开(公告)号：US20160173246A1
公开(公告)日：2016-06-16
申请号：US14669966
申请日：2015-03-26
申请人： Thomas J. Kenney , Shahrnaz Azizi , Chittabrata Ghosh , Eldad Perahia
发明人： Thomas J. Kenney , Shahrnaz Azizi , Chittabrata Ghosh , Eldad Perahia
IPC分类号： H04L5/00 , H04W72/04 , H04B7/04
CPC分类号： H04L5/0044 , H04B7/0452 , H04L5/0007 , H04L5/0041 , H04W72/042 , H04W84/12
摘要： Methods, devices and a computer-readable medium are disclosed for subcarrier allocation to multiple users in wireless local-area networks in accordance with orthogonal frequency division multiple access (OFDMA). A high-efficiency wireless local-area network (HEW) master device is disclosed. The HEW master device includes circuitry configured to transmit data to a plurality of HEW devices, in accordance with OFDMA, on a plurality of noncontiguous sub-channels. Each noncontiguous sub-channel may be a plurality of subcarriers across a bandwidth. A HEW device is disclosed. The HEW device may include circuitry configured to transmit data to a HEW master device, in accordance with OFDMA and a resource map, on a noncontiguous sub-channel over a bandwidth. The circuitry may be further configured to transmit the noncontiguous subcarriers at a greater power level than a regulatory power level for the plurality of interlaced subcarriers if the plurality of interlaced subcarriers were contiguous.
摘要翻译：公开了根据正交频分多址（OFDMA）在无线局域网中向多个用户分配子载波的方法，设备和计算机可读介质。公开了一种高效无线局域网（HEW）主设备。 HEW主设备包括被配置为在多个非连续子信道上根据OFDMA向多个HEW设备发送数据的电路。每个非连续子信道可以是跨带宽的多个子载波。公开了一种HEW设备。 HEW设备可以包括经配置以在带宽上的非连续子信道上根据OFDMA和资源映射向HEW主设备传输数据的电路。所述电路还可以被配置为如果所述多个隔行扫描副载波是连续的，则以比所述多个隔行扫描副载波的调节功率电平更大的功率电平来传输所述非连续副载波。

40. 发明申请

US20160050622A1 WIRELESS DEVICE, METHOD, AND COMPUTER READABLE MEDIA FOR TRANSMITTING AND RECEIVING BEACON FRAMES 审中-公开
标题翻译：无线设备，方法和用于发送和接收信标帧的计算机可读介质
公开(公告)号：US20160050622A1
公开(公告)日：2016-02-18
申请号：US14572048
申请日：2014-12-16
申请人： Shahrnaz Azizi , Eldad Perahia , Guoqing C. Li , Robert J. Stacey , Thomas J. Kenney
发明人： Shahrnaz Azizi , Eldad Perahia , Guoqing C. Li , Robert J. Stacey , Thomas J. Kenney
IPC分类号： H04W52/02 , H04J11/00
CPC分类号： H04W52/0216 , H04L5/0007 , H04L5/0048 , H04W48/12 , H04W84/12 , Y02D70/00 , Y02D70/1226 , Y02D70/1262 , Y02D70/142 , Y02D70/144 , Y02D70/146 , Y02D70/26
摘要： Wireless devices, methods, and computer readable media for transmitting and receiving beacon frames are disclosed. A HEW device may include circuitry configured to: operate in accordance with OFDMA on a plurality of subchannels and a primary channel, and transmit a first beacon on the primary channel to one or more legacy devices. The circuitry may be further configured to transmit a second beacon on the plurality of subchannels to one or more HEW devices. The first beacon may be an 802.11 legacy beacon and the second beacon may be a HEW beacon. A HEW device may include circuitry configured to: tune to an assigned subchannel; and receive a HEW beacon on the assigned subchannel. The circuitry may be configured to: enter a power saving mode; leave the power saving mode; and receive another HEW beacon on the assigned subchannel to synchronize the HEW device with the AP.
摘要翻译：公开了用于发送和接收信标帧的无线设备，方法和计算机可读介质。 HEW设备可以包括被配置为：在多个子信道和主信道上根据OFDMA进行操作，并且将主信道上的第一信标发送到一个或多个传统设备的电路。该电路还可以被配置为将多个子信道上的第二信标发送到一个或多个HEW设备。第一信标可以是802.11遗留信标，第二信标可以是HEW信标。 HEW设备可以包括被配置为：调谐到分配的子信道的电路; 并在分配的子信道上接收HEW信标。电路可以被配置为：进入省电模式; 离开省电模式; 并在分配的子信道上接收另一个HEW信标，以使HEW设备与AP同步。

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