公开(公告)号：US20170005846A1

公开(公告)日：2017-01-05

申请号：US14975190

申请日：2015-12-18

申请人： Ahmed Gamal Helmy Mohamed ,  Shahrnaz Azizi ,  Thomas J. Kenney ,  Eldad Perahia

发明人： Ahmed Gamal Helmy Mohamed ,  Shahrnaz Azizi ,  Thomas J. Kenney ,  Eldad Perahia

IPC分类号： H04L27/26 ,  H04B7/06 ,  H04B7/04

CPC分类号： H04L27/2627 ,  H04B7/0413 ,  H04B7/0697 ,  H04L27/2602 ,  H04W84/12

摘要： A transmitter for spatial modulation in a high-efficiency wireless local-area network is disclosed. An apparatus is disclosed that comprises memory and circuitry coupled to the memory. The processing circuitry configured to split a data bitstream between an antenna bitstream and a symbol bitstream, encode the data bitstream into a plurality of orthogonal frequency-division multiplexing (OFDM) symbols from a signal constellation, encode the antenna bitstream into a plurality of antenna indices from a space constellation, map symbols of the plurality of symbols to a plurality of subcarriers of a channel and associate the symbols with an index of the plurality of indices. The processing circuitry may be configured to configure the access point for transmission of the symbols on the channel in accordance with an associated one of the antenna indices.

摘要翻译： 公开了一种用于高效率无线局域网中空间调制的发射机。 公开了一种包括耦合到存储器的存储器和电路的装置。 处理电路被配置为在天线比特流和符号比特流之间分割数据比特流，将数据比特流编码为来自信号星座的多个正交频分复用（OFDM）符号，将天线比特流编码为多个天线索引 从空间星座，将多个符号的符号映射到信道的多个子载波，并将符号与多个索引的索引相关联。 处理电路可以被配置为根据相关联的一个天线索引来配置用于在信道上传输符号的接入点。

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。

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。

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。

公开(公告)号：US20140185662A1

公开(公告)日：2014-07-03

申请号：US13730996

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 ,  H04L25/0204 ,  H04L25/0226 ,  H04L25/03006 ,  H04L27/18 ,  H04L27/2662 ,  H04L27/2666 ,  H04L27/2675 ,  H04L2025/03414

摘要： Logic may comprise a single phase tracking implementation for all bandwidths of operation and the logic may adaptively change pre-defined and stored track parameters if the receiving packet is 1 MHz bandwidth. Logic may detect a packet and long training fields before performing a 1 MHz classification. Logic may auto-detect 1 MHz bandwidth transmissions by a property of the long training field sequences. Logic may auto-detect 1 MHz bandwidth transmissions by detecting a Binary Phase Shift Keying (BPSK) modulated first signal field symbol rather than the Quadrature Binary Phase Shift Keying (QBPSK) associated with the 2 MHz or greater bandwidth transmissions. Logic may perform an algorithm to determine an estimated phase correction value for a given orthogonal frequency division multiplexing symbol and several embodiments integrate this value with an intercept multiplier that may be 0.2 for 1 MHz transmissions and, e.g., 0.5 for 2 MHz or greater bandwidth communication.

摘要翻译： 逻辑可以包括用于所有操作带宽的单相跟踪实现，并且如果接收分组是1MHz带宽，则逻辑可以自适应地改变预定义和存储的轨道参数。 逻辑可以在执行1 MHz分类之前检测数据包和长训练字段。 逻辑可以通过长训练场序列的属性自动检测1 MHz带宽传输。 逻辑可以通过检测二进制相移键控（BPSK）调制的第一信号字段符号而不是与2MHz或更大带宽传输相关联的正交二进制相移键控（QBPSK）来自动检测1MHz带宽传输。 逻辑可以执行算法来确定给定的正交频分多路复用符号的估计相位校正值，并且若干实施例将该值与截距乘数集成，对于1MHz传输可以为0.2，并且例如对于2MHz或更大带宽通信为0.5 。

公开(公告)号：US20140126385A1

公开(公告)日：2014-05-08

申请号：US13667922

申请日：2012-11-02

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

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

IPC分类号： H04W24/02

CPC分类号： H04L5/0048 ,  H04L5/0007 ,  H04L25/0226 ,  H04L27/2647 ,  H04W24/02

摘要： Examples are disclosed for updating a wireless communication channel estimation. In some examples, a packet may be transmitted or received via a communication channel, the packet having one or more pilot signals that may shift between subcarrier frequencies based on a predetermined first variable associated with a first time duration. A second variable associated with a second time duration may be determined by the receiver of the data packet. The second variable may enable a receiver of the data packet to decide how many pilot signals may be used to update an initial channel estimation for the communication channel. Other examples are described and claimed.

摘要翻译： 公开了用于更新无线通信信道估计的示例。 在一些示例中，可以经由通信信道来发送或接收分组，该分组具有可以基于与第一持续时间相关联的预定第一变量在子载波频率之间移动的一个或多个导频信号。 与第二持续时间相关联的第二变量可以由数据分组的接收器确定。 第二变量可以使得数据分组的接收机能够决定可以使用多少导频信号来更新通信信道的初始信道估计。 其他的例子被描述和要求保护。

公开(公告)号：US20140050254A1

公开(公告)日：2014-02-20

申请号：US13730931

申请日：2012-12-29

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

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

IPC分类号： H04L27/26

CPC分类号： H04L27/2666 ,  H04L5/0051 ,  H04L25/022 ,  H04L27/2647

摘要： Pilot 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 DC tone or the band edge tones. Logic may skip channel updates and phase tracking from pilot tones that have traveled close to the DC tone or the edge tones. In other words, logic may process the shifting pilot tones except for the pilot tones located adjacent to the DC tone and the edge tones. Logic may use channel estimates and phase rotations that are obtained from previous locations of the pilot tones instead of pilot tones that are adjacent to the DC tone or the edge tones. Logic may access memory to store the channel information such as the phase correction information previously obtained and the channel state information previously obtained and derived from processing pilot tones at locations adjacent to the symbol indices next to the DC tone and the edge tones.

摘要翻译： 导频逻辑可以确定频道信息更新，例如来自不接近DC音调或频带边缘音调的导频音调的信道状态信息和相位校正信息。 逻辑可以跳过频道更新和从已经行进接近直流音或边缘音调的导频音进行相位跟踪。 换句话说，逻辑可以处理除了与DC音调和边缘音调相邻的导频音调之外的移动导频音调。 逻辑可以使用从导频音调的先前位置获得的信道估计和相位旋转，而不是与DC音调或边缘音调相邻的导频音调。 逻辑可以访问存储器以存储信道信息，例如先前获得的相位校正信息和先前从与直流音和边缘音调相邻的符号索引处的导频音处理导出的信道状态信息。

公开(公告)号：US20160381664A1

公开(公告)日：2016-12-29

申请号：US14750899

申请日：2015-06-25

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

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

IPC分类号： H04W72/04 ,  H04L29/06

CPC分类号： H04W72/042 ,  H04L69/22

摘要： Devices and techniques for dynamic patterned resource allocation in a wireless network are described herein. Components of a wireless station may obtain a set of dynamic patterns, where members of the set define a sequence of resource units for the wireless network. The components may receive a data unit from an access point of the wireless network, the data unit including a group designation for the wireless station. The components may select one of the set of dynamic patterns based on the received group designation and communicate on the wireless network using resource units specified by the selected dynamic pattern.

摘要翻译： 本文描述了用于无线网络中的动态图案化资源分配的设备和技术。 无线站的组件可以获得一组动态模式，其中该组的成员定义无线网络的资源单元序列。 组件可以从无线网络的接入点接收数据单元，数据单元包括无线站的组指定。 组件可以基于接收到的组指定来选择该组动态模式中的一个，并使用由所选动态模式指定的资源单元在无线网络上进行通信。

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。

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。