公开(公告)号：US20160366644A1

公开(公告)日：2016-12-15

申请号：US14868643

申请日：2015-09-29

申请人： Chittabrata Ghosh ,  Yaron Alpert

发明人： Chittabrata Ghosh ,  Yaron Alpert

IPC分类号： H04W52/02 ,  H04W72/04 ,  H04W4/00 ,  H04L5/00 ,  H04W56/00

CPC分类号： H04W52/0229 ,  H04L5/0007 ,  H04W4/70 ,  H04W56/001 ,  H04W84/12 ,  Y02D70/00 ,  Y02D70/1226 ,  Y02D70/1262 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/146 ,  Y02D70/26

摘要： Apparatuses, computer readable media, and methods for waking up Internet of Things (IoT) devices in a high-efficiency wireless local-area network are disclosed. The apparatus of a high-efficiency wireless local-area network (HEW) device may include processing circuitry and transceiver circuitry configured to generate a packet for one or more stations comprising one or more sub-channels. Each sub-channel may include a common wake up physical synchronization in a physical layer and a station dedicated wake up preamble in a media access control (MAC) layer. The station dedicated wake up preamble may include a wake-up identifier for a corresponding station of the one or more stations. The processing circuitry and transceiver circuitry may be further configured to transmit the packet to the one or more stations in accordance with orthogonal frequency division multiple access (OFDMA).

摘要翻译： 公开了一种用于在高效无线局域网中唤醒物联网（IoT）设备的装置，计算机可读介质和方法。 高效率无线局域网（HEW）设备的装置可以包括处理电路和收发器电路，其被配置为为包括一个或多个子信道的一个或多个站生成分组。 每个子信道可以包括物理层中的公共唤醒物理同步和媒体访问控制（MAC）层中的站专用唤醒前导码。 站专用唤醒前导码可以包括用于一个或多个站的对应站的唤醒标识符。 处理电路和收发器电路还可以被配置为根据正交频分多址（OFDMA）将分组发送到一个或多个站。

公开(公告)号：US20160323807A1

公开(公告)日：2016-11-03

申请号：US14862480

申请日：2015-09-23

申请人： Chittabrata Ghosh ,  Daniel F. Bravo

发明人： Chittabrata Ghosh ,  Daniel F. Bravo

IPC分类号： H04W48/08 ,  H04L5/00 ,  H04W74/08 ,  H04W72/04

CPC分类号： H04W74/0833 ,  H04W84/12

摘要： Apparatuses, computer readable media, and methods for restricting enhanced distributed coordination access (EDCA) in a high-efficiency wireless local-area network (HEW) are disclosed. The apparatus of a HEW station may include processing circuitry and transceiver circuitry. The processing circuitry and transceiver circuitry may be configured to configure the HEW station for operation in enhanced distributed coordinated access (EDCA) restricted mode, where in EDCA restricted mode the HEW station is configured to refrain from EDCA packet transmission. The processing circuitry and transceiver circuitry may be further configured to configure the HEW station for operation in non-EDCA restricted mode where in non-EDCA restricted mode the HEW station is configured to: increase a EDCA attempt failure counter when acknowledgement of an EDCA-transmitted packet is not received within a predetermined period of time, and enter EDCA restricted mode when the EDCA attempt failure counter equals a EDCA threshold.

摘要翻译： 公开了用于限制高效率无线局域网（HEW）中的增强型分布式协调访问（EDCA）的装置，计算机可读介质和方法。 HEW站的设备可以包括处理电路和收发器电路。 处理电路和收发器电路可以被配置为将HEW站配置为在增强的分布式协调访问（EDCA）限制模式中操作，其中在EDCA限制模式中，HEW站被配置为避免EDCA分组传输。 处理电路和收发器电路可以被进一步配置为配置HEW站以非EDCA限制模式操作，其中在非EDCA限制模式下，HEW站配置为：当确认EDCA发送时，增加EDCA尝试失败计数器 在预定时间段内未接收到分组，并且当EDCA尝试故障计数器等于EDCA阈值时，进入EDCA限制模式。

公开(公告)号：US20160286533A1

公开(公告)日：2016-09-29

申请号：US14669150

申请日：2015-03-26

申请人： Chittabrata Ghosh ,  Robert J. Stacey

发明人： Chittabrata Ghosh ,  Robert J. Stacey

IPC分类号： H04W72/04 ,  H04L5/00

CPC分类号： H04L5/0023 ,  H04L5/0007 ,  H04W72/0453 ,  H04W84/12

摘要： Embodiments of a high-efficiency Wi-Fi (HEW) station, access point (AP), and method for communication in a wireless network are generally described herein. In some embodiments, the HEW AP may transmit a resource allocation message to indicate an allocation of sub-channels to one or more HEW stations for uplink data transmissions. Information included in the resource allocation message may include various indicators related to full or partial allocation of the sub-channels and whether equal allocations are made for each of the HEW stations. A sub-channel mapping block may also be included to indicate how the sub-channels are assigned to the HEW stations. In some cases, the length of the sub-channel mapping block may vary based at least partly on the indicators included in the message.

摘要翻译： 本文中通常描述高效Wi-Fi（HEW）站，接入点（AP）以及无线网络中的通信方法的实施例。 在一些实施例中，HEW AP可以发送资源分配消息以指示用于上行链路数据传输的一个或多个HEW站的子信道的分配。 包括在资源分配消息中的信息可以包括与子信道的全部或部分分配有关的各种指示，以及是否对每个HEW站进行相等的分配。 也可以包括子信道映射块以指示子信道如何被分配给HEW站。 在一些情况下，子信道映射块的长度可以至少部分地基于消息中包括的指示符而变化。

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。

公开(公告)号：US20160219461A1

公开(公告)日：2016-07-28

申请号：US14751092

申请日：2015-06-25

申请人： Po-Kai Huang ,  Chittabrata Ghosh ,  Robert J. Stacey

发明人： Po-Kai Huang ,  Chittabrata Ghosh ,  Robert J. Stacey

IPC分类号： H04W28/16

CPC分类号： H04W74/0808 ,  H04W84/12 ,  H04W88/08

摘要： Apparatuses, methods, and computer readable media for signaling clear-channel assessment parameters in a high-efficiency wireless local area network (HEW) are disclosed. A HEW master station comprising circuitry is disclosed. The circuitry may be configured to determine one or more clear-channel assessment (CCA) parameters for one or more HEW stations, and transmit a CCA parameter of the one or more CCA parameters to the corresponding HEW station of the one or more HEW stations. The clear-channel assessment parameter may be one from the following group: mid-packet detect (MPD) threshold, energy detect threshold, and signal detect threshold. The HEW master station may determine the CCA parameter based on the at least one of the following group: an uplink signal strength of the HEW device, a signal quality report received from the HEW device, and a downlink signal strength of the master station received by the HEW device.

摘要翻译： 公开了用于在高效率无线局域网（HEW）中用于信令清除信道评估参数的装置，方法和计算机可读介质。 公开了一种包括电路的HEW主站。 电路可以被配置为确定一个或多个HEW站的一个或多个清除信道评估（CCA）参数，并且将一个或多个CCA参数的CCA参数发送到一个或多个HEW站的相应HEW站。 清晰通道评估参数可以是以下组中的一个：中间包检测（MPD）阈值，能量检测阈值和信号检测阈值。 HEW主站可以基于以下组中的至少一个来确定CCA参数：HEW设备的上行链路信号强度，从HEW设备接收的信号质量报告以及主站接收的下行链路信号强度由 HEW设备。

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。

公开(公告)号：US20160143006A1

公开(公告)日：2016-05-19

申请号：US14671174

申请日：2015-03-27

申请人： Chittabrata Ghosh ,  Robert J. Stacey ,  Shahrnaz Azizi ,  Po-Kai Huang

发明人： Chittabrata Ghosh ,  Robert J. Stacey ,  Shahrnaz Azizi ,  Po-Kai Huang

IPC分类号： H04W72/04 ,  H04W76/02 ,  H04W74/00

CPC分类号： H04W74/004 ,  H04W48/12 ,  H04W48/16 ,  H04W72/02 ,  H04W72/0446 ,  H04W84/12

摘要： Embodiments of a high-efficiency Wi-Fi (HEW) station, access point (AP), and method for random access contention in a wireless network are generally described herein. In some embodiments, the HEW station may receive a beacon frame that indicates a number of trigger frames (TFs) included in a beacon interval. The beacon frame may be received from an HEW access point (AP) in channel resources that include multiple sub-channels. The HEW station may receive a random access TF that indicates a random access portion of the sub-channels that are allocated for random access contention during an uplink transmission period. The HEW station may select a candidate sub-channel from the channel resources. When the candidate sub-channel is included in the random access portion, the HEW station may transmit an association request (AR) frame on the candidate sub-channel during the uplink transmission period.

摘要翻译： 本文中通常描述高效Wi-Fi（HEW）站，接入点（AP）以及无线网络中随机接入竞争的方法的实施例。 在一些实施例中，HEW站可以接收指示信标间隔中包括的触发帧（TF）的数量的信标帧。 可以在包括多个子信道的信道资源中从HEW接入点（AP）接收信标帧。 HEW站可以接收指示在上行链路传输周期期间被分配用于随机接入争用的子信道的随机接入部分的随机接入TF。 HEW站可以从信道资源中选择候选子信道。 当候选子信道被包括在随机接入部分中时，HEW站可以在上行链路传输周期期间在候选子信道上发送关联请求（AR）帧。

公开(公告)号：US08730990B2

公开(公告)日：2014-05-20

申请号：US13233317

申请日：2011-09-15

申请人： Chittabrata Ghosh ,  Klaus Franz Doppler ,  Sumit Roy

发明人： Chittabrata Ghosh ,  Klaus Franz Doppler ,  Sumit Roy

IPC分类号： H04L12/413

CPC分类号： H04W72/082

摘要： Method, apparatus, and computer program product embodiments are disclosed for quiet period management in wireless networks to enhance coexistence of wireless networks with other wireless networks. An example embodiment comprises: receiving control information in a wireless message in a communications channel from another device in a wireless network; receiving a packet having a duration in the communications channel in the wireless network; delaying transmission of a packet in the communications channel for an interval determined by the received control information; monitoring an ambient electromagnetic spectrum during the interval; and competing for transmission resources in the communications channel, using a carrier sense multiple access with collision avoidance access method, after the interval.

摘要翻译： 公开了无线网络中的安静时段管理的方法，装置和计算机程序产品实施例，以增强无线网络与其他无线网络的共存。 示例实施例包括：在无线网络中的另一设备的通信信道中的无线消息中接收控制信息; 接收在无线网络中的通信信道中具有持续时间的分组; 延迟由所接收的控制信息确定的间隔在通信信道中的分组的传输; 在间隔期间监测环境电磁频谱; 并在通信信道中竞争传输资源，采用具有冲突避免接入方式的载波侦听多路访问方式，间隔后。

公开(公告)号：US20200351988A1

公开(公告)日：2020-11-05

申请号：US16893846

申请日：2020-06-05

申请人： Cheng Chen ,  Laurent Cariou ,  Dibakar Das ,  Chittabrata Ghosh ,  Carlos Cordeiro

发明人： Cheng Chen ,  Laurent Cariou ,  Dibakar Das ,  Chittabrata Ghosh ,  Carlos Cordeiro

IPC分类号： H04W88/10 ,  H04W76/15 ,  H04W72/04 ,  H04L12/707

摘要： A multi-link access point (AP) device is configured for multi-link operation to communicate with a plurality of non-AP stations (STAs) over a plurality of corresponding links. A multi-link policy element is encoded for transmission to the non-AP STAs to signal a multi-link policy. The multi-link policy element comprises a common policy sub-element and a plurality of link-specific policy sub-elements. The common policy sub-element is applicable to all links. Each of the link-specific policy sub-elements is applicable to a single link. The link-specific policy sub-elements comprise at least a first link-specific policy sub-element applicable to a first link and a second link-specific policy sub-element applicable to a second link. The common policy sub-element defines a link policy for all links that have been set up between the multi-link AP device and the non-AP STAs. Each link-specific policy element defines a link policy specific to an associated link.

公开(公告)号：US20200274588A1

公开(公告)日：2020-08-27

申请号：US15930885

申请日：2020-05-13

申请人： Feng Jiang ,  Qinghua Li ,  Xiaogang Chen ,  Po-Kai Huang ,  Arik Klein ,  Dmitry Akhmetov ,  Carlos Cordeiro ,  Chittabrata Ghosh ,  Ziv Avital ,  Dibakar Das ,  Cheng Chen

发明人： Feng Jiang ,  Qinghua Li ,  Xiaogang Chen ,  Po-Kai Huang ,  Arik Klein ,  Dmitry Akhmetov ,  Carlos Cordeiro ,  Chittabrata Ghosh ,  Ziv Avital ,  Dibakar Das ,  Cheng Chen

IPC分类号： H04B7/06

摘要： An access point (AP) may operate as a master AP (AP1) to perform multi-AP coordinated beamforming (CBF). The AP1 may to initiate a first sounding sequence with one or more STAs associated with the AP1 (BSS STAs) and the one or more STAs associated with a second AP (AP2) (OBSS STAs). In these embodiments, initiation of the first sounding sequence triggers the AP2 to join the sounding sequence to initiate a second sound sequence with the BSS STAs and the OBSS STAs.