公开(公告)号：US20230333264A1

公开(公告)日：2023-10-19

申请号：US18047899

申请日：2022-10-19

Applicant: Cisco Technology, Inc.

Inventor： Peiman Amini ,  Ardalan Alizadeh ,  Vishal Desai

IPC: G01S19/45 ,  G01S19/51

CPC classification number: G01S19/51 ,  G01S19/45

Abstract: Collaborative geolocation estimation may be provided. A plurality of access points (APs) may receive a geolocation estimation request from a controller. Next, one or more of the plurality of APs may receive signals from a plurality of satellites. The controller may then receive the signals from the plurality of APs. The controller may determine a collaborative geolocation estimation using the signals, wherein, when relative locations of the APs are available, determining the geolocation estimation comprises applying the relative locations. One or more of the plurality of APs may receive the geolocation estimation from the controller.

公开(公告)号：US20230328624A1

公开(公告)日：2023-10-12

申请号：US18332810

申请日：2023-06-12

Applicant: Cisco Technology, Inc.

Inventor： Gautam D. Bhanage ,  Vishal Satyendra Desai ,  Ardalan Alizadeh ,  Khashayar Mirfakhraei

IPC: H04W40/16 ,  H04W76/30 ,  H04W80/02

CPC classification number: H04W40/16 ,  H04W76/30 ,  H04W80/02 ,  H04W84/12

Abstract: Optimal determination of wireless network pathway configurations may be provided. A computing device may detect, at a first network Access Point (AP), inference on a channel with a second AP. Then, the computing device can check availability of a redundant radio at the second AP. Based on the availability, the computing device can establish a new radio link with the redundant radio at the second AP and reroute data traffic over the new radio link to the second AP. After establishing the new radio link, the computing device can then sever the channel with the second AP.

公开(公告)号：US20230254721A1

公开(公告)日：2023-08-10

申请号：US18156012

申请日：2023-01-18

Applicant: Cisco Technology, Inc.

Inventor： Khashayar Mirfakhraei ,  Xu Zhang ,  Ardalan Alizadeh ,  Amir Hosein Kamalizad

IPC: H04W24/10 ,  H04W72/1263 ,  H04W24/08 ,  H04W72/0446 ,  H04W72/0453

CPC classification number: H04W24/10 ,  H04W72/1263 ,  H04W24/08 ,  H04W72/0446 ,  H04W72/0453

Abstract: In one embodiment, an apparatus comprises a compressive sensing schedule generator configured to generate a plurality of compressive sensing schedules, wherein each of the plurality of compressive sensing schedules is for each of a plurality of frequency bands of a network, wherein the network comprises a plurality of access points and a plurality of clients, and a sensing matrix combiner configured to combine the plurality of compressive sensing schedules into a resulting schedule that comprises a spatial distribution and a scheduled time slot for each of the plurality of access points.

公开(公告)号：US11700569B2

公开(公告)日：2023-07-11

申请号：US17503158

申请日：2021-10-15

Applicant: Cisco Technology, Inc.

Inventor： Vishal Satyendra Desai ,  Gautam Bhanage ,  Khashayar Mirfakhraei ,  Ardalan Alizadeh

IPC: H04W40/24 ,  H04W28/10

CPC classification number: H04W40/246 ,  H04W28/10 ,  H04W40/248

Abstract: The present technology enables inter-network routing by dynamically optimizing data paths for traffic destined for wired clients attached to a wireless access point in a wireless mesh network with a plurality of wireless access points. The present technology can also influence steering of wireless device connections within the wireless mesh network when high amounts of data traffic are exchanged between nearby mesh wireless access points.

公开(公告)号：US11616609B2

公开(公告)日：2023-03-28

申请号：US17302805

申请日：2021-05-12

Applicant: Cisco Technology, Inc.

Inventor： Sivadeep R. Kalavakuru ,  Ardalan Alizadeh

IPC: H04L5/00 ,  H04L1/00 ,  H04B1/04

Abstract: Embodiments herein describe assigning different linearity operating points of a front end of a radio to groups of user devices when transmitting data using OFDMA. That is, when transmitting a PPDU to a first group of user devices, an access point (AP) may set the front end of the radio to a lower linearity operating point than when transmitting a PPDU to a second group of user devices. Using a higher linearity operating point can increase the data rate used to transmit the PPDU—e.g., the AP can use a higher modulation coding scheme (MCS). This can reduce the time the PPDUs have to wait in a queue before being transmitted.

公开(公告)号：US11516808B2

公开(公告)日：2022-11-29

申请号：US17154131

申请日：2021-01-21

Applicant: Cisco Technology, Inc.

Inventor： Matthew Aaron Silverman ,  Ardalan Alizadeh ,  Pooya Monajemi ,  Jerome Henry

IPC: H04W72/04 ,  H04W84/12

Abstract: In one embodiment, a method comprises first causing, by a controller device, wireless access points (APs) to allocate first non-interfering wireless channels for a prescribed reliable data service for wireless client devices in a WLAN; second causing the wireless APs to allocate a second shared channel having a bandwidth that is at least twice the corresponding bandwidth of any of the first non-interfering wireless channels; allocating for each wireless client device a corresponding location service interval on the second shared channel for transmission of at least a corresponding identifiable wireless data unit for locating the corresponding wireless client device between two or more of the wireless APs; and determining a location of at least one of the wireless client devices based on reception of at least the corresponding wireless data unit between the one wireless client device and the two or more wireless APs during the corresponding location service interval.

公开(公告)号：US11489699B2

公开(公告)日：2022-11-01

申请号：US17155709

申请日：2021-01-22

Applicant: Cisco Technology, Inc.

Inventor： Matthew Aaron Silverman ,  Ardalan Alizadeh ,  Jerome Henry ,  John Matthew Swartz ,  Pooya Monajemi

IPC: H04L25/02 ,  H04W64/00 ,  H04B17/318 ,  H04W80/02 ,  H04W88/12

Abstract: According to one or more embodiments of the disclosure, a device receives data regarding wireless communications between a wireless access point and a client. The device evaluates, based on the data, motion of the client relative to the wireless access point. The device makes, based on the motion of the client relative to the wireless access point, a determination that the motion of the client relative to the wireless access point will result in the wireless communications degrading as the client approaches the wireless access point. The device adjusts the wireless communications, based on the determination that the motion of the client relative to the wireless access point will result in the wireless communications degrading as the client approaches the wireless access point.

公开(公告)号：US20220239531A1

公开(公告)日：2022-07-28

申请号：US17155709

申请日：2021-01-22

Applicant: Cisco Technology, Inc.

Inventor： Matthew Aaron Silverman ,  Ardalan Alizadeh ,  Jerome Henry ,  John Matthew Swartz ,  Pooya Monajemi

IPC: H04L25/02 ,  H04W64/00 ,  H04W88/12 ,  H04W80/02 ,  H04B17/318

Abstract: According to one or more embodiments of the disclosure, a device receives data regarding wireless communications between a wireless access point and a client. The device evaluates, based on the data, motion of the client relative to the wireless access point. The device makes, based on the motion of the client relative to the wireless access point, a determination that the motion of the client relative to the wireless access point will result in the wireless communications degrading as the client approaches the wireless access point. The device adjusts the wireless communications, based on the determination that the motion of the client relative to the wireless access point will result in the wireless communications degrading as the client approaches the wireless access point.

公开(公告)号：US20220225317A1

公开(公告)日：2022-07-14

申请号：US17145249

申请日：2021-01-08

Applicant: Cisco Technology, Inc.

Inventor： Matthew Aaron Silverman ,  Ardalan Alizadeh ,  Michael Barry DeLong ,  Guru Prasanna Gopalakrishnan

IPC: H04W72/04 ,  G01S3/26

Abstract: A method may be provided. One or more packets from a client may be received, in a block based modulation environment, at one or more switchable antennas of an access point. The access point may have a plurality of switchable antennas. Each switchable antenna may have an antenna state. The plurality of switchable antennas may be switched among such that at least five of the antenna states are sampled. Angle of arrival of the client may be calculated based on the at least five of the antenna states.

公开(公告)号：US20220225115A1

公开(公告)日：2022-07-14

申请号：US17145242

申请日：2021-01-08

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

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.