公开(公告)号：US20200136999A1

公开(公告)日：2020-04-30

申请号：US16172598

申请日：2018-10-26

Applicant: Cisco Technology, Inc.

Inventor： Eric M. LEVY-ABEGNOLI ,  Pascal THUBERT ,  Patrick WETTERWALD

IPC: H04L12/861 ,  H04L12/803 ,  H04L12/947 ,  H04L12/801

Abstract: A source access network device multicasts copies of a packet to multiple core switches, for switching to a same target access network device. The core switches are selected for the multicast based on a load balancing algorithm managed by a central controller. The target access network device receives at least one of the copies of the packet and generates at least metric indicative of a level of traffic congestion at the core switches and feeds back information regarding the recorded at least one metric to the controller. The controller adjusts the load balancing algorithm based on the fed back information for selection of core switches for a subsequent data flow.

公开(公告)号：US20180199339A1

公开(公告)日：2018-07-12

申请号：US15401217

申请日：2017-01-09

Applicant: Cisco Technology, Inc.

Inventor： Pascal THUBERT ,  Patrick WETTERWALD ,  Eric Michel LEVY-ABEGNOLI ,  Jean-Philippe VASSEUR

IPC: H04W72/04 ,  H04L12/24 ,  H04L12/44 ,  H04L12/751

CPC classification number: H04L45/02 ,  H04L12/44 ,  H04L41/12 ,  H04L45/14 ,  H04L45/48

Abstract: In one embodiment, a method comprises promiscuously detecting, by a network device in a wireless data network having a tree-based topology for reaching a root device, a wireless data packet transmitted by a source network device and specifying a destination device in the wireless data network; determining, by the network device, that the destination device is within a first sub-topology provided by the network device to reach the root device, wherein the source network device is within a second distinct sub-topology provided by a parent device of the source network device to reach the root device; and causing installation of a bypass path, bypassing the root device, based on the network device generating and transmitting an instruction to the parent device to install a route entry causing a data packet destined for the destination device to be routed by the parent device directly to the network device.

公开(公告)号：US20170372624A1

公开(公告)日：2017-12-28

申请号：US15192896

申请日：2016-06-24

Applicant: Cisco Technology, Inc.

Inventor： Andre SURCOUF ,  Pascal THUBERT ,  Joseph T. FRIEL ,  Hugo LATAPIE

IPC: G08G5/04 ,  H04B7/0413 ,  H04W40/24 ,  G08G5/00 ,  B64C39/02 ,  H04W84/12

CPC classification number: B64C39/024 ,  B64C2201/141 ,  B64C2201/146 ,  G08G5/045 ,  H04B7/0413 ,  H04W84/12

Abstract: A system for collision avoidance includes memory storing instructions which, when executed, cause one or more processors to perform determining a direction of flight of a first drone, causing broadcasting, in the direction of flight based, a beamformed signal of beacon frames, determining a new flight direction of the same first drone, in response to the new flight direction, causing broadcasting of the beacon frames in the new flight direction, detecting second beacon frames from a second drone associated with a direction from which the second beacon frames are arriving; in response, causing the first drone to perform, without input from a pilot, one or more of a change in elevation, heading, speed, or type of operation, directed toward causing the first drone to follow a flight path that is separated from the second drone.

公开(公告)号：US20250016821A1

公开(公告)日：2025-01-09

申请号：US18477233

申请日：2023-09-28

Applicant: Cisco Technology, Inc.

Inventor： Domenico FICARA ,  Pascal THUBERT ,  Amine CHOUKIR

IPC: H04W72/566 ,  H04W28/06

Abstract: Techniques for coordinating traffic and performing preemption in multi-link operations are provided. At least a first portion of a first element of data is transmitted by the first network device via a first link. A second element of data is identified by the first network device. The transmission of the first element of data is interrupted by the first network device to transmit the second element of data via the first link. A remaining portion of the first element of data is transmitted by the first network device via a second link.

公开(公告)号：US20240422687A1

公开(公告)日：2024-12-19

申请号：US18334958

申请日：2023-06-14

Applicant: Cisco Technology, Inc.

Inventor： Pascal THUBERT ,  Jean-Philippe VASSEUR ,  Eric M. LEVY-ABEGNOLI ,  Patrick WETTERWALD ,  Jerome HENRY

IPC: H04W52/02

Abstract: Techniques for improved networking are provided. An access point (AP) determines an AP duty cycle based at least in part on transmission activity of a station (STA) associated to the AP. The AP duty cycle is signaled via one or more beacon frames transmitted by the AP. The AP exchanges data in accordance with the AP duty cycle, comprising exchanging data with the STA during one or more active periods indicated by the AP duty cycle, and sleeping during one or more inactive periods indicated by the AP duty cycle.

公开(公告)号：US20240015727A1

公开(公告)日：2024-01-11

申请号：US18192306

申请日：2023-03-29

Applicant: Cisco Technology, Inc.

Inventor： Pascal THUBERT ,  Jerome HENRY ,  Juan Carlos ZUNIGA ,  Matthew A. SILVERMAN ,  Domenico FICARA ,  Amine CHOUKIR ,  Robert E. BARTON

IPC: H04W72/121 ,  H04W72/20 ,  H04W72/0446

CPC classification number: H04W72/121 ,  H04W72/20 ,  H04W72/0446 ,  H04W84/12

Abstract: Techniques for managing communications between access points and stations (STAs) are described herein. An access point broadcasts a trigger message to a plurality of STAs, the trigger message includes a matrix defining a plurality of resource units (RUs) that the plurality of STAs are assigned to transmit or receive data. The matrix accomplishes time division multiplexing by assigning timeslots to a plurality of STAs. The matrix accomplishes frequency division multiplexing by also assigning frequency tones to the plurality of STAs.

公开(公告)号：US20230122311A1

公开(公告)日：2023-04-20

申请号：US17503904

申请日：2021-10-18

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: H04B1/7143 ,  H04W64/00 ,  H04W72/12

Abstract: In one embodiment, a device identifies a path of travel of a mobile system. The device subdivides the path of travel into a plurality of zones. The device generates time-slotted channel hopping schedules for the plurality of zones, each time-slotted channel hopping schedule having an associated zone among the plurality of zones. The device causes the mobile system to communicate wirelessly with networking infrastructure located along the path of travel, in accordance with a particular one of the time-slotted channel hopping schedules while the mobile system is located in its associated zone.

公开(公告)号：US20230074297A1

公开(公告)日：2023-03-09

申请号：US17887706

申请日：2022-08-15

Applicant: Cisco Technology, Inc.

Inventor： Pascal THUBERT ,  Jean-Philippe VASSEUR ,  Patrick WETTERWALD ,  Eric LEVY-ABEGNOLI

IPC: H04W4/70 ,  H04W48/18 ,  H04W24/02

Abstract: In one embodiment, a supervisory device in a network forms a virtual access point (VAP) for a node in the network. A set of access points (APs) in the network are mapped to the VAP as part of a VAP mapping and the node treats the APs in the VAP mapping as a single AP for purposes of communicating with the network. The supervisory device receives measurements from the APs in the VAP mapping regarding communications associated with the node. The supervisory device identifies a movement of the node based on the received measurements from the APs in the VAP mapping. The supervisory device adjusts the set of APs in the VAP mapping based on the identified movement of the node.

公开(公告)号：US20220417925A1

公开(公告)日：2022-12-29

申请号：US17929294

申请日：2022-09-01

Applicant: Cisco Technology, Inc.

Inventor： Akram I. SHERIFF ,  Pascal THUBERT ,  Jerome HENRY ,  Robert E. BARTON

IPC: H04W72/04 ,  H04W52/34 ,  H04L12/18 ,  H04L1/00

Abstract: Providing for time sensitive networking (TSN) traffic in high density deployments is described. An access point (AP) is a high density deployment receives a message identifying another AP as a TSN neighbor and also detects a TSN device within an area covered by the APs. This arrangement may cause traffic interruptions for the TSN traffic between the TSN device and the APs. In order to prevent disruption in TSN traffic, a TSN time slot and a resource unit (RU) is determined for each of the APs, and the TSN traffic is communicated between the various devices in network according to the determined TSN time slot and RU.

公开(公告)号：US20210092754A1

公开(公告)日：2021-03-25

申请号：US16575672

申请日：2019-09-19

Applicant: Cisco Technology, Inc.

Inventor： Robert E. BARTON ,  Maik Guenter SEEWALD ,  Pascal THUBERT ,  Jerome HENRY

IPC: H04W72/12

Abstract: Time Sensitive Networking (TSN) in wireless environments may be provided. First, a Radio Frequency (RF) profile associated with a station may be received by a computing device. Next, a number of Transmit Opportunities (TxOPs) to use for transmitting data between an Access Point (AP) and the station based on the received RF profile may be determined. The determined number of TxOPs may then be provided to a wireless controller associated with the AP.