公开(公告)号：US20140192820A1

公开(公告)日：2014-07-10

申请号：US13931918

申请日：2013-06-29

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

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

IPC分类号： H04W28/04 ,  H04W74/08

CPC分类号： H04W72/04 ,  C12N15/74 ,  H04W74/0816 ,  H04W84/18

摘要： Logic for collision mitigation between transmissions of wireless transmitters and receivers operating at different bandwidths. Logic of the receivers may be capable of receiving and detecting signals transmitted at narrower bandwidths. In several embodiments, the receivers comprise a clear channel assessment logic that implements a guard interval (or cyclic prefix) detector to detect transmissions at narrower bandwidths. For instance, a two MegaHertz (MHz) bandwidth receiver may implement a guard interval detector to detect 1 MHz bandwidth signals and a 16M Hz bandwidth receiver may implement logic to detect one or more 1 MHz bandwidth signals and any other combination of, e.g., 1, 2, 4, 8 MHz bandwidth signals. In many embodiments, the guard interval detector may be implemented to detect guard intervals on a channel designated as a primary channel as well as on one or more non-primary channels.

摘要翻译： 用于在不同带宽下工作的无线发射机和接收机的传输之间的冲突缓解的逻辑。 接收机的逻辑可能能够接收和检测在较窄带宽上传输的信号。 在几个实施例中，接收机包括清除信道评估逻辑，其实现保护间隔（或循环前缀）检测器以检测较窄带宽的传输。 例如，两兆赫（MHz）带宽接收机可以实现一个保护间隔检测器来检测1 MHz带宽信号，一个16M Hz带宽接收器可以实现逻辑检测一个或多个1 MHz带宽信号和任何其他组合，例如1 ，2,4,8 MHz带宽信号。 在许多实施例中，保护间隔检测器可被实现为检测被指定为主信道以及在一个或多个非主信道上的信道上的保护间隔。

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：US20140146722A1

公开(公告)日：2014-05-29

申请号：US13685631

申请日：2012-11-26

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

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

IPC分类号： H04L29/06

CPC分类号： H04L69/22 ,  H04L27/2647

摘要： Embodiments may comprise logic such as hardware and/or code to reduce power consumption by, e.g., a device such as a station or relay by implementing prediction logic to decode and determine whether a communication affects the operation of the device. Some embodiments may comprise logic to receive at least a portion of a header of a frame from a physical layer and begin to decode the portion of the header of the frame without first checking the correctness of the value in the frame check sequence field. In many embodiments, prediction logic may determine whether the frame could have an impact on the operation of the device. For circumstances in which the prediction logic determines that the frame will not have an impact, the MAC logic may terminate processing, receipt, and decoding of the frame and enter the device into a low power consumption state.

摘要翻译： 实施例可以包括诸如硬件和/或代码的逻辑，以通过实现预测逻辑来解码并确定通信是否影响设备的操作来减少例如诸如站或中继的设备的功率消耗。 一些实施例可以包括用于从物理层接收帧的头部的至少一部分的逻辑，并且开始对帧的头部的部分进行解码，而不首先检查帧校验序列字段中的值的正确性。 在许多实施例中，预测逻辑可以确定帧是否可能对设备的操作产生影响。 对于预测逻辑确定帧不会产生影响的情况，MAC逻辑可以终止帧的处理，接收和解码，并将该设备进入低功耗状态。

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：US20140112246A1

公开(公告)日：2014-04-24

申请号：US13731001

申请日：2012-12-29

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

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

IPC分类号： H04W28/16

CPC分类号： H04W28/16 ,  H04L5/0048 ,  H04W74/002

摘要： Logic such as hardware and/or code to narrow available sub-channels in frequency selective transmission communications in which a station selects a narrow band from a wider channel bandwidth. A frequency selective transmission scheme for communications devices may select a 1 or 2 MHz channel from a wider channel bandwidth (e.g., 4, 8, 16 MHz) that consists of a number of 1 or 2 MHz sub-channels and transmitting packets on the selected sub-channel. The access point may narrow the number of sub-channels available for selection by stations. Stations may narrow the number of sub-channels. Both the AP and the stations may operate to narrow the number of sub-channels. A medium access control sub-layer protocol common to the communications devices may facilitate a frequency selective transmission scheme.

摘要翻译： 诸如用于在频率选择性传输通信中缩小可用子信道的硬件和/或代码的逻辑，其中站从更宽的信道带宽选择窄带。 用于通信设备的频率选择性传输方案可以从由多个1或2MHz子信道组成的较宽信道带宽（例如，4,8,16MHz）中选择1或2MHz信道，并在所选择的信道上传输分组 子频道 接入点可以缩小可用于站点选择的子信道的数量。 车站可能会缩小子频道的数量。 AP和站都可以操作以缩小子信道的数量。 通信设备公用的介质访问控制子层协议可以促进频率选择性传输方案。

公开(公告)号：US20140098724A1

公开(公告)日：2014-04-10

申请号：US13730997

申请日：2012-12-29

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

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

IPC分类号： H04W72/04

CPC分类号： H04W52/0235 ,  H04L5/006 ,  H04L25/0224 ,  H04W72/02 ,  H04W72/042 ,  H04W72/12 ,  Y02D70/00 ,  Y02D70/142 ,  Y02D70/144

摘要： Logic may comprise hardware and/or code to select a narrow band from a wider channel bandwidth. Logic of communications between devices may select, e.g., a 1 or 2 MHz sub-channel from a wider channel bandwidth such as 4, 8, and 16 MHz and transmit packets on the selected 1 or 2 MHz channel. For instance, a first device may comprise an access point and a second device may comprise a station such as a low power sensor or a meter that may, e.g., operate on battery power. Logic of the devices may facilitate a frequency selective transmission scheme. Logic of the access point may transmit sounding packets or control frames across the sub-channels of the wide bandwidth channel, facilitating selection by the stations of a sub-channel and subsequent communications on the sub-channel between the access point and the station.

摘要翻译： 逻辑可以包括从更宽的信道带宽中选择窄带的硬件和/或代码。 设备之间通信的逻辑可以从诸如4,8和16MHz的更宽的信道带宽中选择例如1或2MHz的子信道，并在选择的1或2MHz信道上发送分组。 例如，第一设备可以包括接入点，并且第二设备可以包括诸如低功率传感器或可以例如对电池电力进行操作的仪表的站。 设备的逻辑可以促进频率选择性传输方案。 接入点的逻辑可以在宽带宽信道的子信道上发送探测分组或控制帧，便于各个小区的子信道选择和接入点与站之间子信道上的后续通信。

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：US20160381709A1

公开(公告)日：2016-12-29

申请号：US14750864

申请日：2015-06-25

申请人： Chittabrata Ghosh ,  Shahrnaz Azizi ,  Eldad Perahia ,  Robert J. Stacey

发明人： Chittabrata Ghosh ,  Shahrnaz Azizi ,  Eldad Perahia ,  Robert J. Stacey

IPC分类号： H04W74/08 ,  H04W72/04 ,  H04W24/08

CPC分类号： H04W74/0833 ,  H04W24/08

摘要： Systems and techniques for random access to a wireless network are described herein. Components of a wireless station may obtain a back-off value. The components may also decode random access resource units from a frame transmitted to the wireless station from an access point of the wireless network. The components may decrement the back-off for each decoded random access frame. The wireless station may select this frame from a sequence of frames when the back-off reaches zero while decoding the random access resource units of this frame. The wireless station then selects the random access resource unit with a more favorable transmission metric than another random access resource unit of the frame and uses the selected random access resource unit to communicate with the access point.

摘要翻译： 本文描述了用于随机接入无线网络的系统和技术。 无线站的组件可以获得退避值。 组件还可以从无线网络的接入点从发射到无线站的帧解码随机接入资源单元。 这些组件可以减少每个解码的随机接入帧的退避。 当解码达到零时，无线站可以从帧序列中选择该帧，同时对该帧的随机接入资源单元进行解码。 无线站然后选择具有比该帧的另一随机接入资源单元更有利的传输度量的随机接入资源单元，并使用所选择的随机接入资源单元与接入点通信。

公开(公告)号：US20200037288A1

公开(公告)日：2020-01-30

申请号：US16537028

申请日：2019-08-09

申请人： Po-Kai Huang ,  Robert J. Stacey ,  Daniel F. Bravo ,  Laurent Cariou ,  Arik Klein ,  Danny Ben-Ari ,  Ofer Schreiber ,  Shahrnaz Azizi ,  Thomas J. Kenney ,  Alexander W. Min ,  Yaron Alpert ,  Avi Mansour ,  Dave A. Cavalcanti ,  Jing Zhu ,  Ziv Avital ,  Xiaogang Chen ,  Juan Fang

发明人： Po-Kai Huang ,  Robert J. Stacey ,  Daniel F. Bravo ,  Laurent Cariou ,  Arik Klein ,  Danny Ben-Ari ,  Ofer Schreiber ,  Shahrnaz Azizi ,  Thomas J. Kenney ,  Alexander W. Min ,  Yaron Alpert ,  Avi Mansour ,  Dave A. Cavalcanti ,  Jing Zhu ,  Ziv Avital ,  Xiaogang Chen ,  Juan Fang

IPC分类号： H04W72/00 ,  H04L29/12 ,  H04L5/00

摘要： Embodiments of a station (STA) and method of communication are generally described herein. The STA may be included in a first plurality of STAs affiliated with a first multi-link logical entity (MLLE). A plurality of links may be established between the first MLLE and a second MLLE, wherein the second MLLE may be affiliated with a second plurality of STAs. The STA may receive a first subset of a sequence of MAC protocol data units (MPDUs). A second subset of the sequence of MPDUs may be transmitted by another STA of the first plurality of STAs. The STA may transmit a block acknowledgement (BA) frame that includes: a number of BA bitmaps, configurable to values greater than or equal to one; and BA control information for each of the BA bitmaps.

公开(公告)号：US20210258116A1

公开(公告)日：2021-08-19

申请号：US17313546

申请日：2021-05-06

申请人： Xiaogang Chen ,  Thomas J. Kenney ,  Shahrnaz Azizi ,  Robert J. Stacey ,  Laurent Cariou ,  Qinghua Li ,  Feng Jiang

发明人： Xiaogang Chen ,  Thomas J. Kenney ,  Shahrnaz Azizi ,  Robert J. Stacey ,  Laurent Cariou ,  Qinghua Li ,  Feng Jiang

IPC分类号： H04L5/00 ,  H04L1/00 ,  H04W84/12

摘要： Methods, apparatuses, and computer readable media include an apparatus of an access point (AP) or station (STA) comprising processing circuitry configured to decode a legacy preamble of a physical layer (PHY) protocol data unit (PPDU), determine whether the legacy preamble comprises an indication that the PPDU is an extremely-high throughput (EHT) PPDU, and in response to the determination indicating the PPDU is the EHT PPDU, decode the EHT PPDU. Some embodiments determine a spatial stream resource allocation based on a row of a spatial configuration table, a row of a frequency resource unit table, a number of stations, and location of the station relative to the number of stations in user fields of an EHT-signal (SIG) field. To accommodate 16 spatial streams, some embodiments extend the length of the packet extension field, extend signaling of a number of spatial streams, and/or extend a number of EHT-SIG symbols.