公开(公告)号：US11817949B2

公开(公告)日：2023-11-14

申请号：US17654534

申请日：2022-03-11

Applicant: Cisco Technology, Inc.

Inventor： Benjamin Jacob Cizdziel ,  Brian Donald Hart ,  Pooya Monajemi ,  Vishal Satyendra Desai

IPC: H04W72/04 ,  H04L1/00 ,  H04L47/125 ,  H04W16/14 ,  H04L47/2441 ,  G01S7/02

CPC classification number: H04L1/0013 ,  H04L47/125 ,  H04L47/2441 ,  H04W16/14 ,  G01S7/021

Abstract: An access point in a wireless network communicates wirelessly with one or more client devices over a channel that includes a plurality of subchannels. Radar is detected on a first subchannel of the plurality of subchannels. It is determined to puncture the first subchannel, based on the detecting the radar on the first subchannel and based on one or more puncturing factors. The first subchannel is punctured, the puncturing comprising muting one or more subcarriers on the first subchannel.

公开(公告)号：US11303385B2

公开(公告)日：2022-04-12

申请号：US16748582

申请日：2020-01-21

Applicant: Cisco Technology, Inc.

Inventor： Benjamin Jacob Cizdziel ,  Brian Donald Hart ,  Pooya Monajemi ,  Vishal Satyendra Desai

IPC: H04L1/00 ,  H04L47/125 ,  H04W16/14 ,  H04L47/2441 ,  G01S7/02

Abstract: An access point in a wireless network communicates wirelessly with one or more client devices over a channel that includes a plurality of subchannels. Radar is detected on a first subchannel of the plurality of subchannels. It is determined to puncture the first subchannel, based on the detecting the radar on the first subchannel and based on one or more puncturing factors. The first subchannel is punctured, the puncturing comprising muting one or more subcarriers on the first subchannel.

公开(公告)号：US20220061044A1

公开(公告)日：2022-02-24

申请号：US17521327

申请日：2021-11-08

Applicant: Cisco Technology, Inc.

Inventor： Benjamin Jacob Cizdziel ,  Brian D. Hart ,  Pooya Monajemi ,  David Kloper

IPC: H04W72/04 ,  H04L5/00 ,  H04W72/08

Abstract: Bypassing radar in wide Dynamic Frequency Selection (DFS) channels utilizing puncturing may be provided. A first client device may be classified as eligible for puncturing and a second client device may be classified as not eligible for puncturing. Next, it may be determined that a subchannel in a bandwidth range should not be used. Then, in response to determining that the subchannel in the bandwidth range should not be used, the first client device may be steered to a first subset of the bandwidth range and the second client device may be steered to a second subset of the bandwidth range. The second subset of the bandwidth range may be smaller than the first subset of the bandwidth range.

公开(公告)号：US11197272B2

公开(公告)日：2021-12-07

申请号：US16726554

申请日：2019-12-24

Applicant: Cisco Technology, Inc.

Inventor： Pooya Monajemi ,  Vishal Satyendra Desai ,  Benjamin Jacob Cizdziel ,  Santosh Babaji Kulkarni ,  Young Il Choi

IPC: H04W4/00 ,  H04W72/04 ,  H04B17/318 ,  H04W48/16 ,  H04W84/12

Abstract: In dense Wireless Local Area Network (WLAN) deployments, Access Points (APs) in other Extended Service Sets (ESSs) can be hidden (a first AP does not receive signals from a third AP). However, these APs in other ESSs can still interfere with communications between the third AP and the devices communicating with the first AP. To improve service to that device in that situation, the first AP needs information about the third AP in the first AP's decision making processes. In these situations, a second AP, in contact with the third AP, can share information about the third AP with the first AP so that the first AP can avoid colliding with the third AP.

公开(公告)号：US11172368B2

公开(公告)日：2021-11-09

申请号：US16685771

申请日：2019-11-15

Applicant: Cisco Technology, Inc.

Inventor： Sanjay Katabathuni ,  Benjamin Jacob Cizdziel

IPC: H04L5/00 ,  H04W16/06 ,  H04L1/00 ,  H04W16/18 ,  H04W48/20 ,  H04W64/00 ,  H04W72/08 ,  H04W84/12

Abstract: Location-aware spatial reuse may be provided. First, an Overlapping Basic Service Set (OBSS) transmission to be received at a device may be detected by a first Access Point (AP). Then the location of the device may be determined. Next, based on the determined location, it may be determined that the device is out of range of the first AP. Then, in response to determining that the device is out of range of the first AP, the first AP may perform an OBSS Packet Detect (PD) based Spatial Reuse (SR) transmission without reducing a transmit (Tx) power for the transmission.

公开(公告)号：US20210195562A1

公开(公告)日：2021-06-24

申请号：US16726554

申请日：2019-12-24

Applicant: Cisco Technology, Inc.

Inventor： Pooya Monajemi ,  Vishal Satyendra Desai ,  Benjamin Jacob Cizdziel ,  Santosh Babaji Kulkarni ,  Young Il Choi

IPC: H04W72/04 ,  H04W48/16 ,  H04B17/318

Abstract: In dense Wireless Local Area Network (WLAN) deployments, Access Points (APs) in other Extended Service Sets (ESSs) can be hidden (a first AP does not receive signals from a third AP). However, these APs in other ESSs can still interfere with communications between the third AP and the devices communicating with the first AP. To improve service to that device in that situation, the first AP needs information about the third AP in the first AP's decision making processes. In these situations, a second AP, in contact with the third AP, can share information about the third AP with the first AP so that the first AP can avoid colliding with the third AP.

公开(公告)号：US20210119893A1

公开(公告)日：2021-04-22

申请号：US16655065

申请日：2019-10-16

Applicant: Cisco Technology, Inc.

Inventor： Ardalan Alizadeh ,  Gautam Dilip Bhanage ,  Benjamin Jacob Cizdziel ,  Khashayar Mirfakhraei ,  Matthew Aaron Silverman

IPC: H04L12/26 ,  H04W72/08 ,  H04L29/14 ,  H04W52/24

Abstract: Inter-protocol interference reduction for hidden nodes may be provided. A first service end point may determine that an inter-protocol interference is present on a channel. Next, an initial packet failure count value on the channel may be determined. A transmit (Tx) power for selected packets may then be increased until a subsequent packet failure count value on the channel is less than the initial packet failure count value.

公开(公告)号：US10743226B2

公开(公告)日：2020-08-11

申请号：US15891488

申请日：2018-02-08

Applicant: Cisco Technology, Inc.

Inventor： Benjamin Jacob Cizdziel ,  Vishal Satyendra Desai ,  Santosh Kulkarni ,  Young Il Choi ,  Nafi Ur Rashid ,  Leela Venkata Kiran Kumar Reddy Chirala

IPC: H04W36/06 ,  H04W36/00 ,  H04W24/08 ,  H04W36/30 ,  H04W16/14 ,  H04W72/04 ,  H04W84/12

Abstract: In one embodiment, a service receives radar data regarding usage of one or more wireless channels by a radar. The service populates a database of radar features with the received radar data. The service trains, using the database of radar features, a machine learning-based model to predict channel usages by the radar. The service causes a wireless access point to change to a different wireless channel, based on the predicted channel usages by the radar.

公开(公告)号：US12244412B2

公开(公告)日：2025-03-04

申请号：US18481702

申请日：2023-10-05

Applicant: Cisco Technology, Inc.

Inventor： Benjamin Jacob Cizdziel ,  Brian Donald Hart ,  Pooya Monajemi ,  Vishal Satyendra Desai

IPC: H04L1/00 ,  H04L47/125 ,  H04L47/2441 ,  H04W16/14 ,  G01S7/02

Abstract: An access point in a wireless network communicates wirelessly with one or more client devices over a channel that includes a plurality of subchannels. Radar is detected on a first subchannel of the plurality of subchannels. It is determined to puncture the first subchannel, based on the detecting the radar on the first subchannel and based on one or more puncturing factors. The first subchannel is punctured, the puncturing comprising muting one or more subcarriers on the first subchannel.

公开(公告)号：US12010746B2

公开(公告)日：2024-06-11

申请号：US17167985

申请日：2021-02-04

Applicant: Cisco Technology, Inc.

Inventor： Vishal Satyendra Desai ,  Gautam D. Bhanage ,  Benjamin Jacob Cizdziel ,  Santosh Babaji Kulkarni

IPC: H04W76/15 ,  H04W8/24 ,  H04W72/0453 ,  H04W72/23

CPC classification number: H04W76/15 ,  H04W8/24 ,  H04W72/0453 ,  H04W72/23

Abstract: Optimization of radio communications of a wireless network of a local site may be provided. A probe frame or an association frame may be received from a Client Device (CD) operating in the local site that identifies at least one operating class and Multi-Link (ML) capability information of the CD. Channel information of at least one Access Point (AP) having ML capability in the local site may be embedded in a probe response frame or in an association response frame based on the at least one operating class and the ML capability information of the CD. The probe response frame or the association response frame that includes the channel information of the at least one AP having ML capability in the local site may be transmitted, as unicast, to the CD.