公开(公告)号：US12192770B2

公开(公告)日：2025-01-07

申请号：US17731689

申请日：2022-04-28

Applicant: Cisco Technology, Inc.

Inventor： Domenico Ficara ,  Roberto Muccifora ,  Amine Choukir ,  Robert Barton ,  Jerome Henry ,  Arun Khanna

IPC: H04W12/122 ,  H04W12/106 ,  H04W12/73

Abstract: A method is provided that is performed in a wireless network to detect a rogue wireless device. The method comprises detecting a suspect wireless device in the wireless network based on messages transmitted by the suspect wireless device using a first Media Access Control (MAC) address that is also used by a valid wireless device in the wireless network. When a suspect wireless device is detected, the method next includes sending to the valid wireless device in the wireless network a request configured to cause the valid wireless device to change its MAC address. After the valid wireless device has changed its MAC address, the method involves observing messages transmitted by the suspect wireless device in the wireless network. The method then includes determining that the suspect wireless device is a rogue device when the suspect wireless device continues to transmit messages using the first MAC address.

公开(公告)号：US12185389B2

公开(公告)日：2024-12-31

申请号：US18424130

申请日：2024-01-26

Applicant: Cisco Technology, Inc.

Inventor： Pascal Thubert ,  Domenico Ficara ,  Alessandro Erta ,  Amine Choukir ,  Patrick Wetterwald

IPC: H04W74/0833 ,  H04W48/20 ,  H04W72/02

Abstract: In one embodiment, an access point of an overhead mesh of access points in an area selects a range of client identifiers. The access point sends, via a beam cone transmitted in a substantially downward direction towards a floor of the area, a trigger signal that includes the range of client identifiers and prompts client devices having identifiers in that range to send best effort transmissions towards the overhead mesh. The access point detects a collision between the best effort transmissions of the client devices. The access point adjusts the range of client identifiers so as to avoid future collisions between the best effort transmissions of the client devices.

公开(公告)号：US12177298B2

公开(公告)日：2024-12-24

申请号：US17581204

申请日：2022-01-21

Applicant: Cisco Technology, Inc.

Inventor： Pascal Thubert ,  Patrick Wetterwald ,  Alessandro Erta ,  Domenico Ficara ,  Amine Choukir

IPC: H04L67/12 ,  G16Y10/75 ,  G16Y40/35 ,  H04W84/18 ,  H04W88/08

Abstract: In one embodiment, a controller identifies access points forming an overhead mesh of access points in an area, each access point comprising one or more directional transmitters each configured to transmit a beam cone in a substantially downward direction towards a floor of the area. The controller determines coverage areas on the floor of the area for the one or more directional transmitters of the access points in the overhead mesh. The controller generates, based on the coverage areas, alternating communication schedules for the access points such that a client device at any given location on the floor of the area is within range of a plurality of receiving access points in the overhead mesh and at least one transmitting access point in the overhead mesh at a certain point in time. The controller sends the communication schedules to the access points.

公开(公告)号：US20240380479A1

公开(公告)日：2024-11-14

申请号：US18460429

申请日：2023-09-01

Applicant: Cisco Technology, Inc.

Inventor： Ugo Mario Campiglio ,  Domenico Ficara ,  Jerome Henry ,  Robert E. Barton ,  Amine Choukir ,  Indermeet S. Gandhi

IPC: H04B7/155 ,  H02J50/00 ,  H02J50/20

Abstract: Backscatter Device (BKD) placement and placement calibration may be provided. A plurality of ambient energy sources of a Three-Dimensional (3D) space may be caused to transmit charging frames for Backscatter Devices (BKDs). Each of the charging frames may include a payload having a Media Access Control (MAC) address of transmitting ambient energy source. An amount of ambient energy received from the charging frames of the plurality of ambient energy sources and each contributing source may be received from survey devices placed at positions along a sub-space of the 3D space. The amount of ambient energy available from each contributing source at each positions along the sub-space per predetermined time period may be predicted based on the amount of ambient energy received from the plurality of ambient energy sources.

公开(公告)号：US20240378407A1

公开(公告)日：2024-11-14

申请号：US18460410

申请日：2023-09-01

Applicant: Cisco Technology, Inc.

Inventor： Robert E. Barton ,  Domenico Ficara ,  Amine Choukir ,  Jerome Henry ,  Ugo Mario Campiglio

IPC: G06K19/07

Abstract: Backscatter Device (BKD) placement and placement calibration may be provided. A plurality of ambient energy sources in a Three-Dimensional (3D) space may be identified and mapped. Each of the plurality of ambient energy sources may be categorized as one of the following: a stationary and controllable ambient energy source, a stationary and uncontrollable ambient energy source, and a mobile ambient energy source. An amount of ambient energy available at each of a plurality of sub-spaces of the 3D space may be determined. The amount of ambient energy available at each of the plurality of sub-spaces may be determined by determining a first amount of ambient energy that is continuously available and a second amount of ambient energy that is likely available at each of the plurality of sub-spaces of the 3D space.

公开(公告)号：US12143880B2

公开(公告)日：2024-11-12

申请号：US17483314

申请日：2021-09-23

Applicant: Cisco Technology, Inc.

Inventor： Alessandro Erta ,  Luca Bisti ,  Domenico Ficara ,  Kasi Nalamalapu ,  Salvatore Valenza ,  Vincent Cuissard ,  Sudhir Kumar Jain ,  Loris Gazzarrini ,  Arun Khanna ,  Stefano Ferrari ,  Pascal Thubert

IPC: H04W36/00 ,  H04W24/08 ,  H04W36/08 ,  H04W36/20

Abstract: In one embodiment, a mobile system scans wireless channels for any upcoming access points using a dedicated monitor radio of the mobile system. The mobile system identifies a particular wireless channel in use by an upcoming access point. The mobile system notifies a second radio of the mobile system of the particular wireless channel. The mobile system performs a handoff between a current access point and the upcoming access point in part by switching the second radio of the mobile system to the particular wireless channel of the upcoming access point.

公开(公告)号：US20240275205A1

公开(公告)日：2024-08-15

申请号：US18468715

申请日：2023-09-17

Applicant: Cisco Technology, Inc.

Inventor： Domenico Ficara ,  Amine Choukir ,  Pascal Thubert ,  Leo Caldarola ,  Mathieu Monney ,  Jerome Henry ,  Arun G. Khanna

IPC: H02J50/00 ,  G01S5/00 ,  H02J50/20 ,  H02J50/30

CPC classification number: H02J50/001 ,  G01S5/0027 ,  H02J50/20 ,  H02J50/30 ,  H04W84/12

Abstract: A backscatter communication device assistant may be provided. A computing device may designate a client device as a backscatter communication device assistant. Next, a report indicating a location of a backscatter communication device may be received from the backscatter communication device assistant. Then the backscatter communication device may be caused to receive energy. Data originating from the backscatter communication device may then be received.

公开(公告)号：US20240205793A1

公开(公告)日：2024-06-20

申请号：US18068898

申请日：2022-12-20

Applicant: Cisco Technology, Inc.

Inventor： Vincent Cuissard ,  Amine Choukir ,  Domenico Ficara ,  Shree Murthy ,  Simone Arena

IPC: H04W40/24 ,  G06F16/23 ,  G06F16/29

CPC classification number: H04W40/248 ,  G06F16/2379 ,  G06F16/29

Abstract: A method of updating map server entries may include generating a map server database (DB) at a map server. The map server DB may include a plurality of relational fields for a plurality of entries. The method may further include, based at least in part on a first entry of the plurality of entries being updated including a change to a first network location of the first entry, updating a second network location of a second entry of the plurality of entries that has a relation with the first entry based on the relational fields.

公开(公告)号：US20240201306A1

公开(公告)日：2024-06-20

申请号：US18065871

申请日：2022-12-14

Applicant: Cisco Technology, Inc.

Inventor： Domenico Ficara ,  Pascal Thubert ,  Jerome Henry ,  Amine Choukir ,  Brian Hart

IPC: G01S5/00 ,  G01S5/02 ,  H04J3/06

CPC classification number: G01S5/0036 ,  G01S5/02216 ,  H04J3/0661

Abstract: Disclosed are systems, apparatuses, methods, and computer-readable media for identifying a location of a wireless device. A method for identifying a location of a wireless device includes transmitting a request message to the wireless device for identifying a position of the wireless device; receiving a response message from the wireless device; determining first time information based on a time of flight (ToF) of the request message and the response message, wherein the ToF corresponds to a distance of the wireless device from the AP; receiving a second message from a second AP that includes second time information associated with the request message and the response message; receiving a third message from a third AP that includes third time information associated with the request message and the response message; and transmitting location configuration information to the wireless device for the wireless device to determine a position of the wireless device.

公开(公告)号：US20240098454A1

公开(公告)日：2024-03-21

申请号：US17932901

申请日：2022-09-16

Applicant: Cisco Technology, Inc.

Inventor： Amine Choukir ,  Domenico Ficara ,  Pascal Thubert ,  Leo Caldarola ,  Mathieu Monney ,  Arun G. Khanna ,  Jerome Henry

IPC: H04W4/029 ,  H04B7/22 ,  H04B17/336

CPC classification number: H04W4/029 ,  H04B7/22 ,  H04B17/336 ,  H04W88/08

Abstract: A managed network supporting backscattering communication devices may be provided. A computing device may determine a plurality of locations respectively associated with a plurality of devices in a preterminal space. At least one of the plurality of devices may be power with energy transmitted from at least one Access Point (AP) to the least one of the plurality of devices at its location. Data may be received from the at least one of the plurality of devices in response to powering the at least one of the plurality of devices.