公开(公告)号：US20190357102A1

公开(公告)日：2019-11-21

申请号：US16436694

申请日：2019-06-10

Applicant: Quantenna Communications, Inc.

Inventor： Stephane CATTET ,  Babak SOLTANIAN ,  Sigurd SCHELSTRAETE ,  Vahbod POURAHMAD ,  Sam HEIDARI ,  Ali ROUHI ,  James HERBERT ,  Richard KINDER

IPC: H04W36/06 ,  H04W48/16 ,  H04W36/00 ,  H04W36/22 ,  H04W36/30

Abstract: A wireless access point (WAP) configured to supporting wireless communications with station nodes on a selected communication channel of an associated wireless local area network (WLAN). The WAP includes multiple multiple-input multiple-output (MIMO) transmit and receive paths. The WAP is to intermittently switch one of the multiple MIMO receive paths to concurrently process both communications on a selected communication channel together with monitoring communications on unselected channels of the multiple communication channels associated with the WLAN

公开(公告)号：US20190341988A1

公开(公告)日：2019-11-07

申请号：US16403073

申请日：2019-05-03

Applicant: Quantenna Communications, Inc.

Inventor： Sigurd SCHELSTRAETE ,  Hossein DEHGHAN ,  Debashis DASH

IPC: H04B7/06

Abstract: Example implementations are directed to methods and systems employing a solicited sounding protocol that includes an efficient communication sequence for operating a wireless transceiver transmitting a sounding trigger to one or more beamformees via a forward channel, receiving at least one dedicated training signal from the one or more beamformees via a reverse channel in response to the sounding trigger, and for each of the received dedicated training signal. The method also includes estimating forward CSI derived based on the dedicated training signal from an associated beamformee; and where subsequent packets are precoded with precoding derived from the forward CSI for transmission to the associated beamformee via the forward channel. Example aspects including scheduling multiple dedicated training signals from one or more beamformees based on a single sounding trigger.

公开(公告)号：US20160127937A1

公开(公告)日：2016-05-05

申请号：US14726518

申请日：2015-05-30

Applicant: Quantenna Communications, Inc.

Inventor： Sigurd SCHELSTRAETE ,  Hossein DEHGHAN ,  Sam HEIDARI ,  Bahador AMIRI

IPC: H04W24/10 ,  H04B7/06 ,  H04B7/04

CPC classification number: H04W24/10 ,  H04B7/0417 ,  H04B7/0617 ,  H04B7/0626 ,  H04W64/003 ,  H04W84/12 ,  H04W88/08

Abstract: A diagnostic system for spatial diagnosis of the WLAN includes: a sounding aggregator and a spatial correlator. The sounding aggregator is configured to aggregate multiple-input multiple-output (MIMO) channel state information (CSI) from channel soundings of the WLAN, including channel soundings between a wireless access point (WAP) node and associated station nodes on a selected one of a plurality of communication channels of the WLAN. The spatial correlator is coupled to the sounding aggregator and configured to correlate CSI from the channel soundings with spatial characteristics of the WLAN including at least one of: a change in location of a WLAN node, human activity among the WLAN nodes, and structural impediments among WLAN nodes.

Abstract translation: WLAN的空间诊断诊断系统包括：探测聚合器和空间相关器。 声音聚合器被配置为从WLAN的信道搜索聚合多输入多输出（MIMO）信道状态信息（CSI），包括无线接入点（WAP）节点和相关联的站点之间的信道探测 WLAN的多个通信信道。 所述空间相关器耦合到所述探测聚合器并且被配置为使来自所述信道探测的所述CSI与所述WLAN的空间特征相关联，所述WLAN的空间特征包括以下中的至少一个：WLAN节点的位置的变化，所述WLAN节点之间的人类活动以及所述WLAN节点之间的结构障碍 WLAN节点。

公开(公告)号：US20190222270A1

公开(公告)日：2019-07-18

申请号：US16272874

申请日：2019-02-11

Applicant: Quantenna Communications, Inc.

Inventor： Sigurd SCHELSTRAETE

IPC: H04B7/0452 ,  H04B7/0417 ,  H04B7/0456 ,  H04B17/336 ,  H04L12/26 ,  H04L5/00

CPC classification number: H04B17/336 ,  H04B7/0417 ,  H04B7/0452 ,  H04B7/0456 ,  H04L5/0023 ,  H04L5/0055 ,  H04L25/0202 ,  H04L43/16 ,  H04Q2201/14 ,  H04W84/12 ,  H04W88/08

Abstract: Systems and methods for a wireless station supporting wireless communications with an associated wireless access point (WAP) on a wireless local area network (WLAN) where the wireless station can include hardware processing circuitry to perform hybrid spatial mapping feedback operations for multi-user (MU) multiple-input multiple-output (MIMO) downlinks from the WAP to a group of associated stations. An exemplary implementation includes a channel estimation circuit to determine a communication channel responsive to an explicit sounding from the WAP, and to transmit channel sounding feedback to the WAP indicating the determined communication channel; and a crosstalk tracking circuit to determine an amount of crosstalk from portions of a downlink MU-MIMO communication packet targeted for other stations in the group of associated stations, and to transmit crosstalk feedback to the WAP as to the determined amount of crosstalk.

公开(公告)号：US20160127019A1

公开(公告)日：2016-05-05

申请号：US14741419

申请日：2015-06-16

Applicant: Quantenna Communications, Inc.

Inventor： Sigurd SCHELSTRAETE ,  Hossein DEHGHAN ,  Sam HEIDARI ,  Bahador AMIRI

IPC: H04B7/04 ,  H04B17/309

CPC classification number: H04B7/0417 ,  H04B7/0617 ,  H04B7/0626 ,  H04B7/0634 ,  H04B7/0645 ,  H04B7/0665 ,  H04B17/309 ,  H04W64/003 ,  H04W84/12

Abstract: A transceiver for a wireless local area network (WLAN) and the transceiver including a sounding feedback module and a sounding feedforward module. The sounding feedback module is responsive to an explicit sounding from a transmitting one of the nodes to send feedback of multiple-input multiple-output (MIMO) channel state information (CSI) derived from the channel sounding to the transmitting one of the nodes for improving subsequent transmissions. The sounding feedforward module is configured to monitor changes in CSI since the last explicit sounding based on CSI determined from the subsequent transmissions of the transmitting one of the nodes and responsive to a determination of a change in CSI above a threshold amount, to feedforward to the transmitting one of the nodes indicia of the change in CSI.

Abstract translation: 一种用于无线局域网（WLAN）的收发器，并且所述收发器包括探测反馈模块和探测前馈模块。 所述探测反馈模块响应来自所述节点中的发送节点之间的明确的声音，以将从所述信道发声的多输入多输出（MIMO）信道状态信息（CSI）的反馈发送到所述节点的发送节点以提高 后续传输。 探测前馈模块被配置为监视自从基于从所述节点中的发送节点之后的传输确定的CSI的最后显式声音的响应于高于阈值量的CSI的改变的确定的CSI的改变，以前馈到 发送CSI中变化的节点之一。