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Dernières publications et brevets sur les constellations Internet par satellite

Constellations Internet par satellite

Astuce : suite à la sélection ci-dessous, vous pouvez rechercher et filtrer nos 2 bases de données complètes :

> outil de recherche de publications gratuit < par auteur, sujet, mots-clés, date ou revue.

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Internet par satellite
Les constellations d'internet par satellite utilisent des satellites en orbite terrestre basse et des technologies de pointe pour fournir une connectivité haut débit mondiale avec une efficacité accrue et en relevant les défis de la durabilité.

Satellite internet constellations deploy large numbers of low earth orbit satellites to provide global broadband connectivity with reduced latency. Inter-satellite links and phased array antennas enable dynamic beamforming and efficient spectrum reuse. Network topology and orbital slot allocation influence coverage and capacity, while handover mechanisms maintain seamless connectivity during satellite movement. Ground station networks interface with space segments, supporting data routing and constellation management. Launch strategies and debris mitigation doit address operational sustainability (not there yet).

Voici notre dernière sélection de publications et de brevets mondiaux en anglais sur les constellations Internet par satellite, parmi de nombreuses revues scientifiques en ligne, classées et axées sur la constellation Internet par satellite, le satellite en orbite basse, la liaison intersatellite, l'antenne réseau à commande de phase, la formation de faisceaux par satellite, le déploiement de constellations, la topologie du réseau satellitaire, l'attribution de créneaux orbitaux, la réutilisation des fréquences, le transfert par satellite, le réseau de stations au sol, la conception de charges utiles par satellite, architecture du segment spatial, liaison transversale de satellite, gestion de constellation, mise à l'échelle de constellation de satellite, réduction des débris orbitaux, communication par satellite, allocation dynamique de bande passante, gestion de puissance de satellite, systèmes de suivi de satellite, simulation de constellation, couverture de constellation, redondance de constellation, synchronisation de constellation, routage de constellation, sécurité de constellation, maintenance de constellation, constellation internet et constellation de satellites.

Congestion management in satellite-based communications networks

Patent published on the 2026-10-15 in US under Ref US20260322724 by APPLE INC [US] (Talakoub Shahram [us], Seeber Sebastian B [us], Robson Travis J [us], Deo Saurabh [us], Adams Michael E [us], Moore Adam J [us], Williams Ashley M [us], Nelson Gregory R [us], Bhattarai Sudeep [us])

Abstract: [0000] A communications system may include a core network (CN) that communicates with a user equipment (UE) device via a satellite constellation. While a congestion level of a serving satellite in the constellation exceeds a threshold and an uplink message queue is empty, the UE may transmit heartbeat signals with a heartbeat period to signal to the CN that the UE device is still active in its communications session. Receipt of a reverse link signal such as the heartbeat may trigger the CN to re[...]


Our summary: This content discusses congestion management in satellite communications networks. It describes how user equipment transmits heartbeat signals to indicate activity during high congestion. The core network adjusts message priority based on the timing of these heartbeat signals.

congestion management, satellite communications, user equipment, core network

Patent

Communication method and apparatus

Patent published on the 2026-10-08 in WO under Ref WO2026208582 by HUAWEI TECH CO LTD [CN] (Zhang Jingwei [cn], Chen Ying [cn], Qiao Yunfei [cn], Zhang Jiayin [cn])

Abstract: A communication method and apparatus, which are applicable to the field of satellite communications, such as NTNs. The method comprises: receiving first configuration information, the first configuration information being used for indicating a first symbol to be muted and/or a second symbol not to be muted in a positioning reference signal resource; and receiving no positioning reference signal on the first symbol, and/or receiving a positioning reference signal on the second symbol. The technic[...]


Our summary: The communication method and apparatus improve satellite communications by managing positioning reference signals. It involves muting specific symbols to reduce interference. This enhances overall positioning accuracy in satellite systems.

satellite communications, positioning reference signals, interference reduction, configuration information

Patent

Satellite communication system, communication method, and program

Patent published on the 2026-10-08 in WO under Ref WO2026211858 by NEC CORP [JP] (Sugyo Kazushi [jp], Ariyoshi Masayuki [jp], Hasegawa Yohei [jp], Yoshida Kohei [jp], Araki Kota [jp])

Abstract: The present invention provides a satellite communication system, a communication method, and a program that improve the efficiency of communication resources for a redundant path. This satellite communication system comprises a path determination unit that determines a redundant path for a first communication path based on the arrangement of a plurality of satellites at a first time such that the redundant path at least partially overlaps a second communication path based on the arrangement of t[...]


Our summary: The invention enhances communication resource efficiency through a satellite communication system. It includes a path determination unit that identifies a redundant path overlapping with a second communication path. This is based on the arrangement of multiple satellites at different times.

satellite communication, path determination, communication efficiency, redundant path

Patent

Improved satellite beam switching

Patent published on the 2026-10-07 in EP under Ref EP4819507 by ST ENG IDIRECT INC DBA IDIRECT [US] (Nakhla Michel [us], Orgren Joseph [us])

Abstract: [0001] The invention provides, amongst other aspects, a method for automatic selective switching of a terminal from a current SA network to a target SA network in a satellite communication system, the method comprising identifying a need for switching the terminal from the current SA network to another SA network based on predefined switching trigger conditions, identifying at least one candidate target SA network from among a plurality of SA networks comprised in the satellite communication sys[...]


Our summary: The invention describes a method for automatic switching of a terminal between satellite networks. It involves identifying the need for switching based on predefined conditions and selecting a suitable target network. Measurement data, including network congestion and physical link conditions, is used to determine the best network option.

satellite communication, beam switching, network status, automatic switching

Patent

Rapid-switching rotatable waveguide polarizer feed assembly for maintaining satellite communications links during spot beam transition

Patent published on the 2026-10-06 in US under Ref US12756452 by MICRO ANT LLC [US] (Mccarrick Charles [us])

Abstract: A rotatable waveguide polarizer feed assembly for satellite and microwave antenna systems includes a stationary waveguide structure, a rotatable waveguide body, and an internal polarization-transforming structure positioned in an axial waveguide passage of the rotatable waveguide body. Internal transfer passages in the rotatable waveguide body selectively communicate with stationary waveguide channels. Rotation of the rotatable waveguide body changes the angular orientation of the polarization-t[...]


Our summary: The assembly enables rapid polarization state reversal for satellite communications. It features a rotatable waveguide body that adjusts the polarization-transforming structure. This technology maintains active links during transitions between spot beams of opposite circular polarization.

polarizer, waveguide, satellite communications, polarization reversal

Patent

Systems and methods for latency equalization in a satellite cellular telecommunications network

Patent published on the 2026-10-06 in US under Ref US12757141 by SPACE EXPLORATION TECH CORP [US] (Akella Ramakrishna [us], Chen Chen [us], Smith Darren E [us], Dunn Brian [us])

Abstract: [0000] A satellite computer system for a satellite can include at least one processor programmed to perform one or more steps. The satellite includes a phased array antenna configured to communicate with terrestrial user equipment (UE) via a plurality of directional beams. The steps can include: determining a signal latency for each of the beams based on a distance between the satellite and a reference location within the beam footprint during a time period; determining, for each of the beams, a[...]


Our summary: The system determines signal latency for satellite beams based on distance. It calculates beam buffer-delay times to achieve predetermined signal latency. Data streams are buffered in a variable delay Rx buffer according to these delays.

latency equalization, satellite telecommunications, phased array antenna, beam buffer-delay

Patent

A Multi-Modal and Sensor Fusion Dataset for Generative Modeling in Remote Sensing

Published on 2026-02-01 by Abdul Mutakabbir, Chung-Horng Lung, Marzia Zaman, Darshana Upadhyay, Kshirasagar Naik, Koreen Millard, Thambirajah Ravichandran, Richard Purcell @MDPI

Abstract: Earth Observation (EO) and Remote Sensing (RS) data are widely used in various fields, including weather, environment, and natural disaster modeling and prediction. EO and RS done through geostationary satellite constellations in fields such as these are limited to a smaller region, while sun synchronous satellite constellations have discontinuous spatial and temporal coverage. This limits the ability of EO and RS data for near-real-time weather, environment, and natural disaster applications. T[...]


Our summary: The NOAH dataset integrates Ground-Based Sensors with Remote Sensing data to enhance Earth Observation applications. It addresses limitations in spatial and temporal coverage for real-time disaster modeling. The dataset supports generative modeling techniques and is open-sourced for further research.

Multi-Modal, Sensor Fusion, Generative Modeling, Remote Sensing

Publication

Deployment and Performance in the South China Sea

Published on 2026-02-01 by Tongmu Liu, Baocheng Zhou, Xinwen Zhang, Jianqing Peng, Hua Huang, Tianhao Jian @MDPI

Abstract: Obtaining real-time data from the deep ocean remains a major challenge in marine observation. This study presents a deep-sea mooring system that integrates inductive telemetry (EUM6000 modules) with Tiantong satellite communication to achieve real-time, long-term hydrological monitoring in the South China Sea. The system incorporated 25 sensors, including CTDs and ADCPs, and was deployed at a depth of 1247 m. Over one year of continuous operation, it maintained a data reception rate &amp;gt;[...]


Our summary: This study presents a deep-sea mooring system that integrates inductive telemetry with satellite communication for real-time hydrological monitoring. The system achieved over one year of continuous operation with a data reception rate greater than 90% and a latency of less than 15 minutes. It provides high-resolution multi-sensor data that enhances understanding of ocean dynamics and supports climate research and disaster warning applications.

Telemetry, Deep-sea, Hydrological monitoring, South China Sea

Publication

Sujets abordés : Internet par satellite, orbite basse, haut débit mondial, temps de latence réduit, liaisons intersatellites, antennes à réseau phasé, formation dynamique de faisceaux, réutilisation du spectre, topologie du réseau, attribution de créneaux orbitaux, mécanismes de transfert, réseaux de stations terrestres, routage des données, gestion des constellations, stratégies de lancement, réduction des débris et durabilité opérationnelle...

Glossaire des termes utilisés

Low Earth Orbit (LEO): Une région de l'espace située généralement entre 160 et 2 000 kilomètres au-dessus de la surface de la Terre, où les satellites subissent une résistance atmosphérique minimale, ce qui permet de réduire les coûts de lancement et la latence des communications. Couramment utilisée pour l'observation de la Terre, les télécommunications et les missions scientifiques.

Contexte historique

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(si la date est inconnue ou non pertinente, par exemple « mécanique des fluides », une estimation arrondie de son émergence notable est fournie)

10e année anniversaire

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