Patents by Inventor Pascal Thubert

Pascal Thubert has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20250038886
    Abstract: In one embodiment, techniques for adaptive forward error correction (FEC) in LPWANS are disclosed. The techniques may include determining, by a process, for a block of messages transmitted through a computer network with forward error correction, whether any unrecovered data loss occurred during transmission; increasing, by the process, a level of forward error correction used to transmit through the computer network in response to unrecovered data loss; and/or decreasing, by the process, the level of forward error correction used to transmit through the computer network in response to no unrecovered data loss.
    Type: Application
    Filed: July 29, 2023
    Publication date: January 30, 2025
    Inventors: Pascal Thubert, Patrick WETTERWALD
  • Patent number: 12213052
    Abstract: In one embodiment, an illustrative method herein may comprise: receiving, at a first edge device, a direct indication from a second edge device that a mobile device has moved from the first to the second edge device; determining, based on the direct indication, a first time at which the mobile device attached to the second edge device; receiving a network routing update message indicative of a routing update for the mobile device having moved to the second edge device; determining, based on the network routing update message, a second time at which convergence completed at the first edge device; and calculating a convergence time for the mobile device to be detected as having moved to the second edge device based on a difference between the first time and the second time.
    Type: Grant
    Filed: May 20, 2022
    Date of Patent: January 28, 2025
    Assignee: Cisco Technology, Inc.
    Inventors: Pascal Thubert, Eric Levy-Abegnoli, Jonas Zaddach, Patrick Wetterwald
  • Patent number: 12212427
    Abstract: A method includes receiving, at a first edge node, an Internet Protocol (IP) multicast address of a first silent host node. The method further includes receiving, at a second edge node, an IP multicast address of a second silent host node. The IP multicast address of the first silent host node is equal to the IP multicast address of the second silent host node. The method further includes storing the IP multicast address of the first and second silent host node in a shared entry of a routing table. The method further includes receiving, at a third edge node, a packet from a third host node and determining that a destination address of the packet corresponds to the IP multicast address stored in the shared entry of the routing table. The method further includes sending the packet to both the first host node and the second host node.
    Type: Grant
    Filed: August 21, 2023
    Date of Patent: January 28, 2025
    Assignee: CISCO TECHNOLOGY, INC.
    Inventors: Pascal Thubert, Eric M. Levy-Abegnoli, Patrick M. P. Wetterwald, Ratko Kovacina
  • Publication number: 20250028376
    Abstract: Methods and systems are described herein for detecting deviations from an expected power profile of a device. The method comprises: retrieving a manufacturer usage description (MUD) associated with the device. The MUD includes a power profile associated with the device. An expected power consumption parameter can be determined from the power profile. The method may further comprise monitoring an actual power consumption parameter of the device and comparing the expected power consumption parameter to the actual power consumption parameter. The method may further comprise determining a deviation between the power consumption parameter and the expected power consumption indicated in the power profile, and outputting a notification when the deviation is equal to or greater than a threshold value.
    Type: Application
    Filed: July 21, 2023
    Publication date: January 23, 2025
    Inventors: Amine Choukir, Pascal Thubert, Domenico Ficara, Eliot Lear
  • Publication number: 20250030783
    Abstract: Systems, methods and computer-readable storage media are provided for encoding, within the SRH-6LoRH field within a data packet, an IPV6 address that can be used to decompress the SCHC information in the data packet. A rule is generated that indicates that the first network address in the SRH-6LoRH field of the data packet is usable to decompress the SCHC information from the data packet as opposed to the compression residue. When the data packet is received at the destination node, the destination node, through a SCHC decompressor, uses the first network address in the SRH-6LoRH field according to the rule to decompress the SCHC information.
    Type: Application
    Filed: July 18, 2023
    Publication date: January 23, 2025
    Inventors: Pascal Thubert, Eric Levy- Abegnoli, Patrick Wetterwald, JP Vasseur
  • Publication number: 20250023811
    Abstract: A process can include determining respective link state information corresponding to a plurality of links between two or more border routers and a plurality of child nodes of the two or more border routers, the border routers and the child nodes included in a Destination Oriented Directed Acyclic Graph (DODAG) of a Low-Power Lossy Network (LLN). Consensus information indicative of a current status of each border router of the two or more border routers can be determined based on the respective link state information. The consensus information can be used to update an election of one or more active border routers from the two or more border routers to utilize as a virtual DODAG root for the LLN. Traffic directed to the virtual DODAG root can be routed to an active border router of the two or more border routers based on the updated election.
    Type: Application
    Filed: July 14, 2023
    Publication date: January 16, 2025
    Inventors: Pascal Thubert, Patrick Wetterwald, JP Vasseur, Eric Levy- Abegnoli
  • Publication number: 20250015949
    Abstract: Optimizing or otherwise improving sounding intervals may be provided. Improving sounding intervals can include generating predicted Channel State information (CSI) of a Station (STA). A Null Data Packet (NDP) Announcement (NDPA) can be sent to the STA, wherein the NDPA instructs the STA to send compressed CSI. A reference signal is then sent to the STA. Finally, the compressed CSI is received from the STA.
    Type: Application
    Filed: July 8, 2024
    Publication date: January 9, 2025
    Applicant: Cisco Technology, Inc.
    Inventors: Jerome Henry, Pascal Thubert, Jean Philippe Vasseur, Federico Lovison, Sukrit Dasgupta
  • Publication number: 20250016621
    Abstract: Predicting network throughput and balancing network loads may be provided. Predicting network throughput and balancing network loads can comprise receiving traffic information from a plurality of Access Points (APs). Based on the traffic information, traffic associated with the plurality of APs can be modeled. Based on the modeled traffic, a gain in AP efficiency for one or more APs of the plurality of APs can be modeled when modifying Station (STA) traffic of a STA. A recommendation can be sent to one or more recipient APs of the plurality of APs, wherein the recommendation indicates the gain in AP efficiency for the one or more APs when modifying the STA traffic.
    Type: Application
    Filed: July 9, 2024
    Publication date: January 9, 2025
    Applicant: Cisco Technology, Inc.
    Inventors: Jerome Henry, Pascal Thubert, Jean Philippe Vasseur
  • Publication number: 20250016821
    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.
    Type: Application
    Filed: September 28, 2023
    Publication date: January 9, 2025
    Inventors: Domenico FICARA, Pascal THUBERT, Amine CHOUKIR
  • Publication number: 20250007817
    Abstract: Presented herein are techniques to regulate the use of a device and route network traffic associated with the device based on a digital visa. A method includes obtaining information associated with a device; obtaining information associated with policies for a plurality of jurisdictions, the policies including data sovereignty policies and environmental policies for each jurisdiction of the plurality of jurisdictions; determining a set of constraints for regulating use of the device and for routing network traffic associated with the device based on the information associated with the device and the policies for the plurality of jurisdictions; and regulating the use of the device and routing the network traffic associated with the device based on the set of constraints.
    Type: Application
    Filed: June 29, 2023
    Publication date: January 2, 2025
    Inventors: Esther Roure Vila, Tiziano Canovai, Maria Soledad Palmero Amador, Gonzalo A. Salgueiro, Pascal Thubert
  • Patent number: 12185092
    Abstract: In one embodiment, a method comprises: registering, by a root network device in a low power and lossy network, a constrained network device that is reachable within the low power and lossy network; obtaining, by the root network device, executable code associated with execution of a network service operation by the constrained network device; receiving a data packet from a source device and destined for the constrained network device; and causing execution on the data packet, by the root network device, of the network service operation on behalf of the constrained network device in response to reception of the data packet.
    Type: Grant
    Filed: December 28, 2021
    Date of Patent: December 31, 2024
    Assignee: Cisco Technology, Inc.
    Inventors: Li Zhao, Pascal Thubert, Huimin She, Haibo Dong
  • Patent number: 12185389
    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.
    Type: Grant
    Filed: January 26, 2024
    Date of Patent: December 31, 2024
    Assignee: Cisco Technology, Inc.
    Inventors: Pascal Thubert, Domenico Ficara, Alessandro Erta, Amine Choukir, Patrick Wetterwald
  • Patent number: 12177298
    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.
    Type: Grant
    Filed: January 21, 2022
    Date of Patent: December 24, 2024
    Assignee: Cisco Technology, Inc.
    Inventors: Pascal Thubert, Patrick Wetterwald, Alessandro Erta, Domenico Ficara, Amine Choukir
  • Publication number: 20240422687
    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.
    Type: Application
    Filed: June 14, 2023
    Publication date: December 19, 2024
    Inventors: Pascal THUBERT, Jean-Philippe VASSEUR, Eric M. LEVY-ABEGNOLI, Patrick WETTERWALD, Jerome HENRY
  • Publication number: 20240414102
    Abstract: Devices, systems, methods, and processes for sustainably operating a plurality of network planes via de-energization and re-energization is described herein. In many network configurations, a plurality of planes exist that allow for more modular connections in a network fabric. Often, these planes are configured such that each plane is not directly connected to another plane. Because of this, various embodiments described herein can evaluate network conditions and determine if there are conditions suitable to de-energize a plane by either directing the plane to enter a lower-power mode, by shutting off the plane, or disconnecting the available power. This de-energization period can be for a period of time or can occur until a triggering event is detected that indicates that the plane should be re-energized. These determinations can be done based on current traffic trends or historical conditions. They may also be heuristic-based or generated via one or more machine-learning processes.
    Type: Application
    Filed: June 8, 2023
    Publication date: December 12, 2024
    Inventors: Pascal Thubert, Carlos Pignataro, Ayan Banerjee
  • Publication number: 20240406144
    Abstract: Techniques for using Locator ID Separation Protocol (LISP), Mobile Internet Protocol (MIP), and/or other techniques in conjunction with Domain Name System (DNS) to obfuscate server-side addresses in data communications. Rather than having DNS provide a client device with an IP address of an endpoint device, such as a server, the DNS instead returns an endpoint identifiers (EID) that is mapped to the client device and at least one routing locator (RLOC) of the endpoint device. In this way, IP addresses of servers are obfuscated by a network mapping of EIDs and RLOCs. The client device may then communicate data packets to the server using the EIDs as the destination address, and a virtual network service that works in conjunction with DNS can encapsulate the data packet with the RLOC using LISP and forward the data packet onto the server.
    Type: Application
    Filed: June 2, 2023
    Publication date: December 5, 2024
    Inventors: Pascal Thubert, Pradeep Kumar Kathail, Eric Levy-Abegnoli, David A. Maluf
  • Patent number: 12160364
    Abstract: Systems, methods and computer-readable storage media are provided for determining critical flow characteristics and predicting the network resources to compute time-based p-routes that satisfy different SLAs. Critical flows within a set of nodes organized in a DODAG are monitored and assessed according to applicable SLAs and relevant networking KPIs to generate a forecast of the traffic flow and the overall SLAs for these critical flows. These overall SLAs, KPIs, and the generated forecast are used by a PCE associated with the network to compute p-routes through the set of nodes in the DODAG that satisfy the overall SLAs for the critical flows.
    Type: Grant
    Filed: July 12, 2023
    Date of Patent: December 3, 2024
    Assignee: Cisco Technology, Inc.
    Inventors: JP Vasseur, Pascal Thubert, Eric Levy-Abegnoli, Patrick Wetterwald
  • Patent number: 12155622
    Abstract: Techniques for varying locations of virtual networks associated with endpoints using Network Address Translation (NAT), Mobile Internet Protocol (MIP), and/or other techniques in conjunction with Domain Name System (DNS). Rather than having DNS provide a client device with an IP address of an endpoint device, such as a server, the DNS instead returns a virtual IP (VIP) address that is mapped to the client device and the endpoint device. The VIP address may be selected based on a number of factors (e.g., power usage, privacy requirements, virtual distances, etc.). In this way, IP addresses of servers are obfuscated by a virtual network of VIP addresses that can be periodically rotated and/or load balanced. The client device may then communicate data packets to the server using the VIP address as the destination address, and a virtual network service that works in conjunction with DNS can convert the VIP address to the actual IP address of the server using NAT and forward the data packet onto the server.
    Type: Grant
    Filed: August 24, 2023
    Date of Patent: November 26, 2024
    Assignee: Cisco Technology, Inc.
    Inventors: Pascal Thubert, Eric A. Voit, Eric Levy-Abegnoli, Patrick Wetterwald, Jonas Zaddach
  • Publication number: 20240388932
    Abstract: Techniques for improving telemetry in resource-constrained device environments. In some examples, the techniques include gossiping telemetry information between peer devices of a wireless network to, among other things, reduce telemetry cost and/or an amount of telemetry data streamed to a telemetry collector. In some examples, the techniques may also include intelligently exporting telemetry data from resource-constrained devices towards backend systems without exhausting the resource-constrained devices and/or the backend systems. In examples, the telemetry data may be contextual information associated with an endpoint, an application, a network-device resource (e.g., CPU, battery, memory, storage, etc.), geographical constraints, and/or the like.
    Type: Application
    Filed: May 15, 2023
    Publication date: November 21, 2024
    Inventors: Domenico Ficara, Pascal Thubert, Amine Choukir, Roque Gagliano
  • Publication number: 20240380828
    Abstract: The present disclosure describes an apparatus that generates headers for backscattering devices. The apparatus includes one or more memories and one or more processors communicatively coupled to the one or more memories. A combination of the one or more processors determined an Internet protocol (IP) address for a backscattering device, generates a header that includes the IP address, and communicates a first energizing frame to the backscattering device. The first energizing frame includes the header. The combination of the one or more processors also receives a message from the backscattering device. The message includes the header.
    Type: Application
    Filed: March 13, 2024
    Publication date: November 14, 2024
    Inventors: Jerome HENRY, Pascal THUBERT, Jean-Philippe VASSEUR, Robert E. BARTON