公开(公告)号：US12177943B2

公开(公告)日：2024-12-24

申请号：US17111625

申请日：2020-12-04

Applicant: Cisco Technology, Inc.

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

IPC: H04W76/00 ,  H04W4/40 ,  H04W40/24 ,  H04W76/11 ,  H04W76/12 ,  H04W88/16 ,  H04W36/00 ,  H04W92/02 ,  H04W92/24

Abstract: In one embodiment, a gateway to a Layer-3 network forms a first Layer-2 tunnel between the gateway and a first wireless access point (AP) that communicates wirelessly with a first mobile node of a mobile system (MS) via a first wireless connection. The gateway generates a mapping that associates an onboard device of the MS with the first AP and an identifier for the MS, based on traffic conveyed via the first Layer-2 tunnel and associated with the onboard device, the traffic comprising a header that indicates the identifier for the MS. The gateway receives, from a second AP, an indication that the MS is roaming from the first wireless connection to a second wireless connection, the indication including the identifier for the MS. The gateway updates the mapping to associate the onboard device of the MS with a second AP, based on the indication that the MS is roaming.

公开(公告)号：US12089089B2

公开(公告)日：2024-09-10

申请号：US17581188

申请日：2022-01-21

Applicant: Cisco Technology, Inc.

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

IPC: H04B10/00 ,  H04B10/114 ,  H04W16/26 ,  H04W16/28 ,  H04W28/16 ,  H04W84/18

CPC classification number: H04W28/16 ,  H04B10/1149 ,  H04W16/26 ,  H04W16/28 ,  H04W84/18

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 assigns the access points to access point groups. The controller generates communication schedules for the access points such that each access point in an access point group is on a common channel and only one of neighboring directional transmitters of access points in that group is able to transmit at any given time. The controller sends the communication schedules to the access points forming the overhead mesh of access points in the area.

公开(公告)号：US11930541B2

公开(公告)日：2024-03-12

申请号：US17683833

申请日：2022-03-01

Applicant: Cisco Technology, Inc.

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

IPC: H04W74/08 ,  H04W48/20 ,  H04W72/02

CPC classification number: H04W74/085 ,  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：US11800422B2

公开(公告)日：2023-10-24

申请号：US17390445

申请日：2021-07-30

Applicant: Cisco Technology, Inc.

Inventor： Arman Rezaee ,  Ali Sajassi ,  Alessandro Erta ,  Elango Ganesan ,  Pradeep Kumar Kathail

IPC: H04B7/185 ,  H04W36/30 ,  H04L45/50

CPC classification number: H04W36/30 ,  H04B7/18521 ,  H04B7/18541 ,  H04L45/50

Abstract: In one embodiment, an earthbound transceiver in a low earth orbit (LEO) satellite network establishes a connection with a first LEO satellite from a first set of LEO satellites. The first set of LEO satellites are distributed across a first plurality of orbits including first neighboring LEO satellites of the first LEO satellite, and the first neighboring LEO satellites have a fixed or semi-fixed position relative to the first LEO satellite. The earthbound transceiver determines first signal strength values associated with the first set of LEO satellites and second signal strength values associated with a second set of LEO satellites. The earthbound transceiver then periodically compares the first signal strength values to the second signal strength values. At an optimal handoff time, the earthbound transceiver initiates the handoff operation from the first LEO satellite to a second LEO satellite from the second set of LEO satellites.

公开(公告)号：US11678250B2

公开(公告)日：2023-06-13

申请号：US17240116

申请日：2021-04-26

Applicant: Cisco Technology, Inc.

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

IPC: H04W40/00 ,  H04W40/24 ,  H04W40/02 ,  H04W28/10 ,  H04L45/24 ,  H04W28/06 ,  H04L45/50

CPC classification number: H04W40/246 ,  H04L45/24 ,  H04L45/50 ,  H04W28/06 ,  H04W28/10 ,  H04W40/02

Abstract: In one embodiment, a device identifies a plurality of access points of a wireless network. The device also identifies a plurality of mobile nodes of a mobile system. The device establishes a first label-switched path in the wireless network that comprises a wireless link between a first mobile node in the plurality of mobile nodes and a first access point in the plurality of access points. The device establishes a second label-switched path in the wireless network that comprises a wireless link between a second mobile node of the mobile system and a second access point in the plurality of access points.

公开(公告)号：US20230171172A1

公开(公告)日：2023-06-01

申请号：US17538109

申请日：2021-11-30

Applicant: Cisco Technology, Inc.

Inventor： Domenico Ficara ,  Vincent Cuissard ,  Luca Bisti ,  Alessandro Erta ,  Arun Khanna ,  Frank Brockners

IPC: H04L43/08 ,  H04L12/46

CPC classification number: H04L43/08 ,  H04L12/4633

Abstract: In one embodiment, a network device along a path in a network receives a schedule that controls when the networking device is to insert telemetry data into data traffic passing through the networking device. The networking device generates the telemetry data for insertion into the data traffic passing through the networking device. The networking device inserts, according to the schedule, the telemetry data into a particular packet of the data traffic passing through the networking device. The networking device sends the particular packet to a next hop along the path in the network.

公开(公告)号：US20220393988A1

公开(公告)日：2022-12-08

申请号：US17340606

申请日：2021-06-07

Applicant: Cisco Technology, Inc.

Inventor： Alessandro Erta ,  Luca BISTI ,  Domenico FICARA ,  Kasi NALAMALAPU ,  Vincent CUISSARD ,  Sudhir Kumar JAIN ,  Loris GAZZARRINI ,  Arun KHANNA ,  Stefano FERRARI ,  Salvatore VALENZA

IPC: H04L12/841 ,  H04L12/801 ,  H04L12/863 ,  H04W40/20

Abstract: In one embodiment, a networking device receives packets of a traffic flow destined for a mobile system. The networking device sends a first flowlet of the traffic flow towards the mobile system via a first wireless access point. The networking device determines an idle time between the first flowlet and a second flowlet of the traffic flow. The networking device sends, based on the idle time, the second flowlet towards the mobile system via a second wireless access point.

公开(公告)号：US20220225201A1

公开(公告)日：2022-07-14

申请号：US17390445

申请日：2021-07-30

Applicant: Cisco Technology, Inc.

Inventor： Arman Rezaee ,  Ali Sajassi ,  Alessandro Erta ,  Elango Ganesan ,  Pradeep Kumar Kathail

IPC: H04W36/30 ,  H04B7/185

Abstract: In one embodiment, an earthbound transceiver in a low earth orbit (LEO) satellite network establishes a connection with a first LEO satellite from a first set of LEO satellites. The first set of LEO satellites are distributed across a first plurality of orbits including first neighboring LEO satellites of the first LEO satellite, and the first neighboring LEO satellites have a fixed or semi-fixed position relative to the first LEO satellite. The earthbound transceiver determines first signal strength values associated with the first set of LEO satellites and second signal strength values associated with a second set of LEO satellites. The earthbound transceiver then periodically compares the first signal strength values to the second signal strength values. At an optimal handoff time, the earthbound transceiver initiates the handoff operation from the first LEO satellite to a second LEO satellite from the second set of LEO satellites.