公开(公告)号：US11910423B2

公开(公告)日：2024-02-20

申请号：US17512098

申请日：2021-10-27

Applicant: Cisco Technology, Inc.

Inventor： Fred J. Anderson ,  Paul Jeffrey Stager ,  Evgeny Yankevich ,  Matthew Aaron Silverman

IPC: H04W72/541 ,  G01S7/02 ,  H04W72/0453 ,  H04W88/08

CPC classification number: H04W72/541 ,  G01S7/021 ,  H04W72/0453 ,  H04W88/08

Abstract: Methods and systems for distinguishing between radar signals and Wi-Fi signals are provided. When a set of electromagnetic signals are received, various tests are performed on the signals to determine if the signals are associated with radar pulses or if the signals are more likely to be associated with stray Wi-Fi signals or other non-radar interference. One such test relies on the relatively small variance of frequencies used by radar pulses when compared to the high variation of Wi-Fi signals. Another test relies on the relatively low peak to average power ratio of signals associated with radar pulses when compared to Wi-Fi signals. The tests described herein are an improvement on existing methods for distinguishing radar signals from Wi-Fi signals and result in less switching of Wi-Fi channels due to erroneously detected radar signals.

公开(公告)号：US20240022919A1

公开(公告)日：2024-01-18

申请号：US18468884

申请日：2023-09-18

Applicant: Cisco Technology, Inc.

Inventor： Salvatore Valenza ,  Samer Salam ,  Taha Hajar ,  Nikodin Ristanovic ,  Arun G. Khanna ,  Matthew Aaron Silverman

IPC: H04W16/22 ,  H04B17/391 ,  H04B17/318 ,  H04W16/20

CPC classification number: H04W16/225 ,  H04B17/391 ,  H04B17/318 ,  H04W16/20

Abstract: The present technology is directed to providing a 3-D visualization of a Wi-Fi signal propagation pattern based on telemetry data. The present technology can receive telemetry data for a Wi-Fi access point located at a location of a building plan in a Wi-Fi visualization system, store the telemetry data with a timestamp, determine a change in a Wi-Fi coverage for the Wi-Fi access point based on the telemetry data, and present a visualization illustrating the change in the Wi-Fi coverage for the Wi-Fi access point. The present technology can further present an animation of the change in the Wi-Fi coverage for the Wi-Fi access point based on the stored telemetry data.

公开(公告)号：US20240015827A1

公开(公告)日：2024-01-11

申请号：US18181963

申请日：2023-03-10

Applicant: Cisco Technology, Inc.

Inventor： Juan Carlos Zuniga ,  Pooya Monajemi ,  Robert Edgar Barton ,  Matthew Aaron Silverman ,  Jerome Henry

IPC: H04W76/15

CPC classification number: H04W76/15 ,  H04W84/12

Abstract: A method to operate a multi-link wireless device. The method includes establishing at least a first multi-link device interface and a second multi-link device interface, exposing, via a virtual data port, the first multi-link device interface and the second multi-link device interface at a data processing layer of the wireless device, selecting one of the first multi-link device interface and the second multi-link device interface, as a selected multi-link device interface, based on performance information associated with a first radio and a second radio associated, respectively, with the first multi-link device interface and the second multi-link device interface, and wirelessly transmitting a packet from the wireless device by routing the packet through the selected multi-link device interface.

公开(公告)号：US20240014913A1

公开(公告)日：2024-01-11

申请号：US18473688

申请日：2023-09-25

Applicant: Cisco Technology, Inc.

Inventor： Salvatore Valenza ,  Samer Salam ,  Taha Hajar ,  Nikodin Ristanovic ,  Arun G. Khanna ,  Matthew Aaron Silverman ,  James Florwick

IPC: H04B17/391 ,  G06T15/06 ,  G06T15/08 ,  H04W36/00 ,  H04W72/29 ,  H04W28/086

CPC classification number: H04B17/391 ,  G06T15/06 ,  G06T15/08 ,  H04W36/0077 ,  H04W72/29 ,  H04W28/0865 ,  H04W84/12

Abstract: The present technology is directed to visualizing a Wi-Fi access point (AP) signal propagation pattern through multiple floors. The present technology can execute a Wi-Fi signal propagation model corresponding to a first AP on a first floor of a building plan and a second AP on a second floor of the building plan. The Wi-Fi signal propagation model calculates a Wi-Fi signal propagation pattern for a plurality of APs including the first AP and the second AP. The present technology can further present a visualization of the Wi-Fi signal propagation pattern for the plurality of APs, wherein the Wi-Fi signal propagation pattern for the first AP on the first floor of the building plan projects onto the second floor of the building plan.

公开(公告)号：US11828832B2

公开(公告)日：2023-11-28

申请号：US17123904

申请日：2020-12-16

Applicant: Cisco Technology, Inc.

Inventor： Jerome Henry ,  Robert Edgar Barton ,  Matthew Aaron Silverman

IPC: H04W24/00 ,  G01S13/02 ,  H04W76/15 ,  H04W76/11 ,  G01S5/14 ,  G01S13/76 ,  H04W64/00

CPC classification number: G01S13/0209 ,  G01S5/145 ,  G01S13/765 ,  H04W64/003 ,  H04W76/11 ,  H04W76/15

Abstract: Presented herein are infrastructure triggering techniques for secure Ultra-Wideband (UWB) ranging. In one example, a method may include providing UWB ranging parameters to a mobile device via a first radio communication, wherein the first radio communication is a non-UWB radio communication; and triggering the mobile device to perform UWB ranging with a UWB anchor, wherein the triggering is performed using a second radio communication. In another example, a method may include, obtaining, by a mobile device, UWB ranging parameters for a geographic area; obtaining a UWB ranging instruction for the geographic area; and performing UWB ranging with a target UWB anchor based on the UWB ranging parameters and the UWB ranging instruction.

公开(公告)号：US11784724B2

公开(公告)日：2023-10-10

申请号：US17342167

申请日：2021-06-08

Applicant: Cisco Technology, Inc.

Inventor： Matthew Aaron Silverman ,  Pooya Monajemi ,  Vishal Satyendra Desai ,  John Martin Blosco

IPC: H04B15/00 ,  H04B17/318 ,  H04B1/38

CPC classification number: H04B15/00 ,  H04B1/38 ,  H04B17/318

Abstract: An access point allocates resource units within a first channel to mitigate interference from an adjacent second channel. The access point obtains a measure of signal strength corresponding to each wireless device attached to an access point, and assigns, for each wireless device, resource units with a first frequency band of the first channel to mitigate interference with a second frequency band of a second channel adjacent to the first channel. An assignment between a set of resource units and a particular wireless device is based on the measure of signal strength corresponding to the particular wireless device. The access point communicates with the wireless devices on the resource units.

公开(公告)号：US11777699B2

公开(公告)日：2023-10-03

申请号：US17836073

申请日：2022-06-09

Applicant: Cisco Technology, Inc.

Inventor： Pooya Monajemi ,  Brian Hart ,  Matthew Aaron Silverman ,  Gautam D. Bhanage

IPC: H04L5/14 ,  H04W74/08 ,  H04W52/28

CPC classification number: H04L5/14 ,  H04W52/283 ,  H04W74/0816

Abstract: A wireless access point device is full-duplex capable and serves wireless communication for at least first and second wireless client devices. The wireless access point device sends to the first wireless client device a trigger frame that causes the first wireless client device to send an uplink transmission to the wireless access point after a first time interval. The wireless access point device waits a second time interval after the first wireless client is expected to begin sending the uplink transmission. The wireless access point device receives the uplink transmission from the first wireless client device. After the second time interval, and while receiving the uplink transmission from the first wireless client device, the wireless access point device sends to the second wireless client device a downlink transmission that overlaps at least partially in frequency and time with the uplink transmission from the first wireless client device.

公开(公告)号：US11678205B2

公开(公告)日：2023-06-13

申请号：US17833811

申请日：2022-06-06

Applicant: Cisco Technology, Inc.

Inventor： Sivadeep Reddy Kalavakuru ,  Ardalan Alizadeh ,  John Martin Blosco ,  Matthew Aaron Silverman ,  Gautam D. Bhanage ,  John Matthew Swartz

IPC: H04W16/28 ,  H04B17/391 ,  H04W24/02 ,  H04W64/00 ,  H04W84/12

CPC classification number: H04W16/28 ,  H04B17/391 ,  H04W24/02 ,  H04W64/006 ,  H04W84/12

Abstract: Optimal determination of wireless antenna configurations may be provided. A computing device may direct an antenna array of an Access Point (AP) to generate a wide beamwidth, to locate a cluster of two or more stations. Upon locating the cluster, the AP can narrow the beamwidth, and, with the narrower beamwidth, receive a key performance indicator (KPI) from at least one of the two or more stations in the cluster. The computing device may then generate a statistical model, based on the KPI and an antenna vector of the antenna array. Based on the statistical model, the computing device can determine a second antenna vector to optimize the KPI for one or more of the client stations. The computing device can then modify the antenna state of the AP to generate the determined antenna vector.

公开(公告)号：US11659559B2

公开(公告)日：2023-05-23

申请号：US17682049

申请日：2022-02-28

Applicant: Cisco Technology, Inc.

Inventor： Ardalan Alizadeh ,  Sivadeep Reddy Kalavakuru ,  Gautam D. Bhanage ,  John Matthew Swartz ,  Matthew Aaron Silverman

IPC: H04W72/21 ,  H04B7/06 ,  H04L43/0829 ,  H04B17/318

CPC classification number: H04W72/21 ,  H04B7/0617 ,  H04B7/0695 ,  H04B17/318 ,  H04L43/0841

Abstract: Optimal determination of wireless network pathway configurations may be provided. A computing device may establish Multi-Access Point (AP) coordination between at least a first AP and a second AP. The first AP can determine an uplink operation is scheduled. When an uplink is scheduled, the first AP can switch its antenna to a narrow beamwidth. The first AP can then receive uplink transmissions from at least a client in the coverage area of the narrow beamwidth. After the uplink transmission, the first AP can then switch the antenna to a larger beamwidth for a next Multi-AP coordination operation.

公开(公告)号：US20230028257A1

公开(公告)日：2023-01-26

申请号：US17481916

申请日：2021-09-22

Applicant: Cisco Technology, Inc.

Inventor： Salvatore Valenza ,  Samer Salam ,  Taha Hajar ,  Nikodin Ristanovic ,  Arun G. Khanna ,  Matthew Aaron Silverman ,  James Florwick

IPC: H04B17/391 ,  G06T15/08 ,  G06T15/06

Abstract: The present technology is directed to visualizing a Wi-Fi access point (AP) signal propagation pattern through multiple floors. The present technology can execute a Wi-Fi signal propagation model corresponding to a first AP on a first floor of a building plan and a second AP on a second floor of the building plan. The Wi-Fi signal propagation model calculates a Wi-Fi signal propagation pattern for a plurality of APs including the first AP and the second AP. The present technology can further present a visualization of the Wi-Fi signal propagation pattern for the plurality of APs, wherein the Wi-Fi signal propagation pattern for the first AP on the first floor of the building plan projects onto the second floor of the building plan.