公开(公告)号：US20220014958A1

公开(公告)日：2022-01-13

申请号：US17484162

申请日：2021-09-24

Applicant: Cisco Technology, Inc.

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

IPC: H04W24/10 ,  H04W72/12 ,  H04W24/08 ,  H04W72/04

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：US20210406696A1

公开(公告)日：2021-12-30

申请号：US17474191

申请日：2021-09-14

Applicant: Cisco Technology, Inc.

Inventor： Dantong LIU ,  Qing ZHAO ,  Khashayar MIRFAKHRAEI ,  Gautam Dilip BHANAGE ,  Xu Zhang ,  Ardalan Alizadeh

IPC: G06N3/08 ,  H04L29/08 ,  G06N3/04 ,  H04L12/24

Abstract: Learning-based service migration in mobile edge computing may be provided. First, a service migration policy may be created for a network that includes a plurality of edge clouds configured to provide a service to users. Next, a movement of a user receiving the service from a source edge cloud may be detected. The source edge cloud may be associated with a first area and the detected movement may be from the first area to a second area. Then, the service migration policy may be applied to determine whether to migrate the service for the user from the source edge cloud. In response to determining to migrate the service, a target edge cloud may be identified and the service for the user may be migrated from the source edge cloud to the target edge cloud. The service migration policy may then be updated based on a success of the migration.

公开(公告)号：US11159970B2

公开(公告)日：2021-10-26

申请号：US16299481

申请日：2019-03-12

Applicant: Cisco Technology, Inc.

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

IPC: H04W24/10 ,  H04W72/10 ,  H04W24/08 ,  H04W72/04 ,  H04W72/12

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：US20210192768A1

公开(公告)日：2021-06-24

申请号：US16724751

申请日：2019-12-23

Applicant: Cisco Technology, Inc.

Inventor： Huy Phuong Tran ,  Xu Zhang ,  Santosh Ghanshyam Pandey ,  Hugo Latapie ,  Abhishek Mukherji ,  Enzo Fenoglio

IPC: G06T7/70 ,  G06K9/46 ,  H04W4/33 ,  G01S5/02

Abstract: In one embodiment, a service obtains spatial information regarding a physical area. The service estimates locations of a device within the physical area over time, based on wireless signals sent by the device. The service generates a set of images based on the spatial information regarding the physical area and on the estimated locations of the device within the physical area over time. The service updates an estimated location of the device by inputting the generated set of images to a machine learning model trained to minimize a location estimation error.

公开(公告)号：US20210120515A1

公开(公告)日：2021-04-22

申请号：US16655030

申请日：2019-10-16

Applicant: Cisco Technology, Inc.

Inventor： Matthew Aaron Silverman ,  Xu Zhang ,  Santosh Ghanshyam Pandey ,  Jerome Henry ,  Paul J. Stager

IPC: H04W64/00 ,  H04W16/28 ,  G01S13/76

Abstract: Access Point (AP) placement using Fine Time Measurement (FTM) may be provided. First, a plurality of Time-of-Flight (ToF) values between a first service end point and a second service end point may be determined. Each one of the plurality of ToF values may be derived from packets transmitted via different beamforming vector patterns at the first service end point and the second service end point. Then a minimum ToF value of the plurality of ToF values may be determined. Next, a distance between the first service end point and the second service end point may be determined based on the minimum ToF value.

公开(公告)号：US10904831B2

公开(公告)日：2021-01-26

申请号：US16406184

申请日：2019-05-08

Applicant: Cisco Technology, Inc.

Inventor： Ardalan Alizadeh ,  Amir Hosein Kamalizad ,  Khashayar Mirfakhraei ,  Xu Zhang ,  Matthew A. Silverman

IPC: H04L5/00 ,  H04W52/02 ,  H04L25/02

Abstract: In one embodiment, a device in a network receives, at its wireless receiver, a preamble of a spatially modulated packet. The device analyzes the preamble of the packet to identify a transmit antenna index of the packet. The device determines that the packet was not destined for the device, based on the transmit antenna index of the packet. The device depowers, prior to decoding the complete packet, the wireless receiver of the device, based on the determination that the packet was not destined for the device.

公开(公告)号：US10693512B1

公开(公告)日：2020-06-23

申请号：US16457588

申请日：2019-06-28

Applicant: Cisco Technology, Inc.

Inventor： Khashayar Mirfakhraei ,  Ardalan Alizadeh ,  Xu Zhang ,  Gautam D. Bhanage ,  Daniel J. Lyons ,  Brian D. Hart

IPC: H03D1/04 ,  H03D1/06 ,  H03K5/01 ,  H03K6/04 ,  H04B1/10 ,  H04L1/00 ,  H04L25/08 ,  H04B1/12 ,  H04B1/04 ,  H04B1/18

Abstract: The present disclosure provides for distortion cancelled by receiving a collided signal comprising first and second signals carrying respective first and second packets; digitizing the collided signal into a first digital signal and decoding the first packet therefrom; calculating a digital linear interference component of the first packet on the second from an estimated signal re-encoding the decoded first packet; synthesizing an analog linear interference component from the digital linear interference component; determining a digital nonlinear interference component of the first packet on the second from the first digital signal; amplifying the collided signal to produce a second amplified signal; removing the analog linear interference component from the second amplified signal to produce a partially de-interfered signal; removing the digital nonlinear interference component from the partially de-interfered signal to produce a de-interfered signal; and decoding the second packet from the de-interfered signal.

公开(公告)号：US20200158810A1

公开(公告)日：2020-05-21

申请号：US16356662

申请日：2019-03-18

Applicant: Cisco Technology, Inc.

Inventor： Xu Zhang ,  Abhishek Mukherji ,  Huy Phuong Tran ,  Vinay S. Raghuram ,  Matthew Aaron Silverman

IPC: G01S5/02 ,  H04W24/04 ,  H04W64/00 ,  G01S5/06

Abstract: Systems and methods provide for improving the accuracy of a location system. The location system can capture partial phase vector data from one or more access points (APs). The location system can capture associated data associated with the partial phase vector data across multiple dimensions, such as identity data of the APs and client devices generating the partial phase vector data and frequency band data, location data, a time and date, and other data associated with the partial phase vector data. The location system can determine correlation data across the multiple dimensions using the first partial phase vector data and the associated data. The location system can a cause of the partial phase vector data based on the correlation data. The location system can perform one or more remediation actions based on the cause of the partial phase vector data.

公开(公告)号：US11818567B2

公开(公告)日：2023-11-14

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 ,  H04W72/10 ,  H04W24/08 ,  H04W72/04 ,  H04W72/1263 ,  H04W72/0446 ,  H04W72/0453

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

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：US20220377699A1

公开(公告)日：2022-11-24

申请号：US17833824

申请日：2022-06-06

Applicant: Cisco Technology, Inc.

Inventor： Matthew Aaron Silverman ,  Xu Zhang ,  Santosh Ghanshyam Pandey ,  Jerome Henry ,  Paul J. Stager

IPC: H04W64/00 ,  G01S13/76 ,  H04W16/28

Abstract: Access Point (AP) placement using Fine Time Measurement (FTM) may be provided. First, a plurality of Time-of-Flight (ToF) values between a first service end point and a second service end point may be determined. Each one of the plurality of ToF values may be derived from packets transmitted via different beamforming vector patterns at the first service end point and the second service end point. Then a minimum ToF value of the plurality of ToF values may be determined. Next, a distance between the first service end point and the second service end point may be determined based on the minimum ToF value.