Methods, systems, and apparatus, including computer programs encoded on computer-storage media, for operational trust-based device auto-recovery. In some implementations, a device operates using first configuration information stored by the device. The device receives updated configuration information and stores the updated configuration information while maintaining storage of the first configuration information. The device sets itself to operate with the updated configuration information subject to a limitation, and the device is configured to revert to using the first configuration information if one or more predetermined conditions occur. The communication device then operates using the updated configuration information subject to the limitation.
H04L 41/082 - Réglages de configuration caractérisés par les conditions déclenchant un changement de paramètres la condition étant des mises à jour ou des mises à niveau des fonctionnalités réseau
In some implementations, methods, systems, and apparatus, including machine-readable media storing executable instructions, are provided for switching radio frequency chains. For example, a gateway for a satellite communication system can include a first radiofrequency chain, a second radiofrequency chain, and a third radiofrequency chain configured to operate in a standby mode. The gateway includes radiofrequency switches configured to (i) switch between coupling the first radiofrequency chain and the third radiofrequency chain to a first antenna feed for the first channel, and (ii) switch between coupling the second radiofrequency chain and the third radiofrequency chain to a second antenna feed for the second channel. The gateway also includes a controller configured to monitor the status of the radiofrequency chains and, based on the monitored status, instruct the radiofrequency switches to switch between different connections of the radiofrequency chains with the antenna feeds.
Systems and methods for bandwidth allocation for Voice over WiFi (VoWiFi) packet traffic in a satellite system is disclosed. The system may include a processor and a memory storing instructions which, when executed by the processor, cause the processor to determine whether there is any VoWiFi packet traffic over a satellite network link (such as, e.g., control and management packet traffic) and, if there is, allocate a guaranteed minimum bandwidth for the VoWiFi packet traffic. The processor may further provide a series of step bandwidth allocations based on the current level of VoWiFi packet traffic exceeding certain threshold values (e.g., as voice data packet traffic).
H04L 65/80 - Dispositions, protocoles ou services dans les réseaux de communication de paquets de données pour prendre en charge les applications en temps réel en répondant à la qualité des services [QoS]
H04L 43/0882 - Utilisation de la capacité de la liaison
H04W 84/12 - Réseaux locaux sans fil [WLAN Wireless Local Area Network]
4.
SATELLITE COMMUNICATION SYSTEM AND METHOD FOR MANAGING EMERGENCY MESSAGING SERVICES
A system and method for managing emergency messaging services is disclosed. The system receives request for transmitting emergency message from user equipment (UE) to geosynchronous equatorial orbit (GEO) satellite. Further, the system determines current location information of the UE. The system determines satellite location of the GEO satellite in proximity to the UE. The system computes a threshold azimuth angle between the UE and the GEO satellite. Further, the system determines an azimuth angle of the UE. Furthermore, the system determines a deviation level between the computed threshold azimuth angle and the determined azimuth angle of the UE. The system further generates an alignment recommendation message for the UE at real-time. Furthermore, the system validates the alignment recommendation message based on signal strength, and signal quality of the UE. Additionally, the system initiates transmission of the emergency message from UE to GEO satellite.
G01S 19/39 - Détermination d'une solution de navigation au moyen des signaux émis par un système de positionnement satellitaire à radiophares le système de positionnement satellitaire à radiophares transmettant des messages horodatés, p. ex. GPS [Système de positionnement global], GLONASS [Système mondial de satellites de navigation] ou GALILEO
5.
RELAY-ASSISTED HIGH-CAPACITY SATELLITE FEEDER LINKS WITH INTEGRATED LINE-OF-SIGHT MIMO RF AND OPTICAL CHANNELS VIA HAPS
Techniques are described for providing satellite communications via a relay-assisted hybrid radio frequency/free-space-optical (RF/FSO) ground-satellite link. A high-altitude platform station (HAPS) splits the ground-to-satellite link into a ground-to-HAPS line-of-sight (LoS) multiple-in-multiple-out (MIMO) radio frequency (RF) link, and a HAPS-to-satellite FSO link. The approach mitigates the effects of atmospheric impairments on the FSO link, while also appreciably reducing adverse effects of bandwidth and propagation disparity between the RF and FSO links.
A system and method for summarizing issues of an infrastructure, the method includes: representing possible issues for each of the elements using a Directed Acyclic Graph (DAG) having vertices, where each of the vertices includes a rule, an operation, and a tuple that comprises an issue and a severity; receiving data related to performance of elements within the infrastructure; evaluating, at each of the vertices, the data using the respective rule to identify a respective issue at the respective severity; and summarizing the vertices into core issue vertices for improved human readability and easier diagnosis. Evaluation for an edge vertex is based on the output of the respective rule, while evaluation for a non-edge vertex involves uniting the outputs of direct predecessors with a respective operation. If the union returns True, the evaluation outputs the computation of the rule associated with the vertex; otherwise, it outputs False.
Systems and methods for bandwidth allocation for Voice over WiFi (VoWiFi) packet traffic in a satellite system is disclosed. The system may include a processor and a memory storing instructions which, when executed by the processor, cause the processor to determine whether there is any VoWiFi packet traffic over a satellite network link (such as, e.g., control and management packet traffic) and, if there is, allocate a guaranteed minimum bandwidth for the VoWiFi packet traffic. The processor may further provide a series of step bandwidth allocations based on the current level of VoWiFi packet traffic exceeding certain threshold values (e.g., as voice data packet traffic).
Techniques are described for providing satellite communications via a relay-assisted hybrid radio frequency/free-space-optical (RF/FSO) ground-satellite link. A high-altitude platform station (HAPS) splits the ground-to-satellite link into a ground-to-HAPS line-of-sight (LoS) multiple-in-multiple-out (MIMO) radio frequency (RF) link, and a HAPS-to-satellite FSO link. The approach mitigates the effects of atmospheric impairments on the FSO link, while also appreciably reducing adverse effects of bandwidth and propagation disparity between the RF and FSO links.
H04B 10/118 - Dispositions spécifiques à la transmission en espace libre, c.-à-d. dans l’air ou le vide spécialement adaptées aux communications par satellite
A system and method for managing emergency messaging services is disclosed. The system receives request for transmitting emergency message from user equipment (UE) to geosynchronous equatorial orbit (GEO) satellite. Further, the system determines current location information of the UE. The system determines satellite location of the GEO satellite in proximity to the UE. The system computes a threshold azimuth angle between the UE and the GEO satellite. Further, the system determines an azimuth angle of the UE. Furthermore, the system determines a deviation level between the computed threshold azimuth angle and the determined azimuth angle of the UE. The system further generates an alignment recommendation message for the UE at real-time. Furthermore, the system validates the alignment recommendation message based on signal strength, and signal quality of the UE. Additionally, the system initiates transmission of the emergency message from UE to GEO satellite.
Methods, systems, and apparatus, including computer programs encoded on computer storage media, for wireless communication with modulation using electromagnetic polarization. In some implementations, a device receives input data to transmit over a wireless communication channel, and the device has a (i) first antenna feed to receive signals for transmission with a first polarization and (ii) a second antenna feed to receive signals for transmission with a second polarization. The device modulates a radiofrequency carrier to generate modulated output that encodes a first subset of the input data, then upconverts the modulated output of the modulator to generate upconverted output. The device varies a polarization with which the upconverted output is transmitted based on a second subset of the input data, such that the input data is transmitted using both (i) modulation of the radiofrequency carrier signal and (ii) variation of the polarization with which the modulated signal is transmitted.
A system and method for managing network communication in an asymmetric network environment. The system includes a gateway. The gateway receives a plurality of packets for transmission over first communication network. The plurality of packets are received via primary network path. The gateway dynamically evaluates the plurality of packets. The gateway classifies the plurality of packets into a latency sensitive packet and a latency agnostic packet. The gateway determines network capacity of the primary network path and a secondary network path. The gateway splits the latency sensitive packet and the latency agnostic packet between the primary network path and the secondary network path. The gateway selects the primary network path for transmitting the latency sensitive packet. The gateway selects the secondary network path for transmitting the latency agnostic packet over downstream transmission. Furthermore, the gateway transmits the latency sensitive packet and the latency agnostic packet to a client device.
H04L 47/2425 - Trafic caractérisé par des attributs spécifiques, p. ex. la priorité ou QoS pour la prise en charge de spécifications de services, p. ex. SLA
H04L 47/2441 - Trafic caractérisé par des attributs spécifiques, p. ex. la priorité ou QoS en s'appuyant sur la classification des flux, p. ex. en utilisant des services intégrés [IntServ]
H04L 47/283 - Commande de fluxCommande de la congestion par rapport à des considérations temporelles en réponse à des retards de traitement, p. ex. causés par une gigue ou un temps d'aller-retour [RTT]
12.
Network system for enhanced communication using multiple paths
A system and method for managing network communication in an asymmetric network environment. The system includes a gateway. The gateway receives a plurality of packets for transmission over first communication network. The plurality of packets are received via primary network path. The gateway dynamically evaluates the plurality of packets. The gateway classifies the plurality of packets into a latency sensitive packet and a latency agnostic packet. The gateway determines network capacity of the primary network path and a secondary network path. The gateway splits the latency sensitive packet and the latency agnostic packet between the primary network path and the secondary network path. The gateway selects the primary network path for transmitting the latency sensitive packet. The gateway selects the secondary network path for transmitting the latency agnostic packet over downstream transmission. Furthermore, the gateway transmits the latency sensitive packet and the latency agnostic packet to a client device.
A processor can be configured to execute instructions stored in the memory to position a first point in a grid space that represents an unmodulated signal component of a first signal based on a characteristic of a frequency modulator generating the first signal. The frequency modulator can include a first input to receive data from a baseband source and can include a second input to receive a second signal from a local oscillator. The processor can determine, in the grid space, a first angle between a first line segment from a reference point to the first point and a second line segment from the first point to a point representing the first offset signal applied to the frequency modulator. The processor can additionally apply a second offset signal, based on the first angle, to compensate for the characteristic of the frequency modulator.
H04L 25/49 - Circuits d'émissionCircuits de réception à conversion de code au transmetteurCircuits d'émissionCircuits de réception à pré-distorsionCircuits d'émissionCircuits de réception à insertion d'intervalles morts pour obtenir un spectre de fréquence désiréCircuits d'émissionCircuits de réception à au moins trois niveaux d'amplitude
In beamforming with an antenna for satellite communications, the antenna includes an array of radiating elements. The beamforming method includes: formulating a matrix based on responses from all elements of the antenna to each of a number of users of a first satellite; augmenting the matrix by adding responses from the elements of the antenna to other users served by a different satellite; from the augmented matrix, generating a beamforming matrix; and with the beamforming matrix, beamforming a beam from the antenna.
H04B 7/06 - Systèmes de diversitéSystèmes à plusieurs antennes, c.-à-d. émission ou réception utilisant plusieurs antennes utilisant plusieurs antennes indépendantes espacées à la station d'émission
In beamforming with an antenna for satellite communications, the antenna includes an array of radiating elements. The beamforming method includes: formulating a matrix based on responses from all elements of the antenna to each of a number of users of a first satellite; augmenting the matrix by adding responses from the elements of the antenna to other users served by a different satellite; from the augmented matrix, generating a beamforming matrix; and with the beamforming matrix, beamforming a beam from the antenna.
H04B 7/06 - Systèmes de diversitéSystèmes à plusieurs antennes, c.-à-d. émission ou réception utilisant plusieurs antennes utilisant plusieurs antennes indépendantes espacées à la station d'émission
A system can include a phase timing offset component that generates a first signal to indicate an offset of a first symbol from a reference signal and an accumulator component that combines the offset of the first symbol with a first phase increment based on the reference signal. The system can additionally include a memory that stores a first shaping parameter to modify a filter coefficient to be applied to the first symbol based on the first phase increment and an interpolator that modifies the first shaping parameter for the first phase increment to adjust for the offset of the first symbol.
An unitary one-piece construction feed for a high frequency band antenna, the feed including: a feed horn; and a polarizer comprising a void and multiple sets of ridges disposed in the void, wherein the polarizer is in direct contact with the feed horn and the unitary one-piece construction feed is capable of operating with a carrier signal ranging across one or two consecutive bands selected from Ku, K, Ka and Q bands, for example, from 17.3 GHz to 31 GHz.
H01P 1/17 - Dispositifs auxiliaires pour faire tourner le plan de polarisation pour produire une rotation continue du plan de polarisation, p. ex. une polarisation circulaire
18.
TERMINAL-TO-TERMINAL COMMUNICATION IN SATELLITE NETWORKS
Methods, systems, and apparatus, including computer programs encoded on computer-storage media, for terminal-to-terminal communication in satellite networks. In some implementations, a system includes an application server that enables a communication session that routes user data between a first terminal and a second terminal over a satellite communication network without routing the user data through any intermediate ground stations.
Methods, systems, and apparatus, including computer programs encoded on computer storage media, for dynamic gateway selection. In some implementations, a first communication tunnel is established between an SD-WAN router and a first SD-WAN gateway via a first wireless gateway. After establishing and using a modem of the terminal to communicate through the first communication tunnel, determining that the modem switched to communicate with a second wireless gateway that is different from the first wireless gateway. In response, a second SD-WAN gateway is selected based on a relationship between the second wireless gateway and the second SD-WAN gateway. Criteria for establishing an additional communication tunnel are determined to be satisfied. In response to determining that the criteria have been satisfied, a second communication tunnel between the SD-WAN router and the second SD-WAN gateway is established, the terminal is configured to provide data through the first and the second communication tunnel.
H04L 12/28 - Réseaux de données à commutation caractérisés par la configuration des liaisons, p. ex. réseaux locaux [LAN Local Area Networks] ou réseaux étendus [WAN Wide Area Networks]
H04L 41/40 - Dispositions pour la maintenance, l’administration ou la gestion des réseaux de commutation de données, p. ex. des réseaux de commutation de paquets en utilisant la virtualisation des fonctions réseau ou ressources, p. ex. entités SDN ou NFV
H04W 36/24 - La resélection étant déclenchée par des paramètres spécifiques
Methods, systems, and apparatus, including computer programs encoded on computer storage media, for dynamic gateway selection. In some implementations, a first communication tunnel is established between an SD-WAN router and a first SD-WAN gateway via a first wireless gateway. After establishing and using a modem of the terminal to communicate through the first communication tunnel, determining that the modem switched to communicate with a second wireless gateway that is different from the first wireless gateway. In response, a second SD-WAN gateway is selected based on a relationship between the second wireless gateway and the second SD-WAN gateway. Criteria for establishing an additional communication tunnel are determined to be satisfied. In response to determining that the criteria have been satisfied, a second communication tunnel between the SD-WAN router and the second SD-WAN gateway is established, the terminal is configured to provide data through the first and the second communication tunnel.
Methods, systems, and apparatus, including computer programs encoded on computer storage media, for dynamic gateway selection. In some implementations, a first communication tunnel is established between an SD-WAN router and a first SD-WAN gateway via a first wireless gateway. After establishing and using a modem of the terminal to communicate through the first communication tunnel, determining that the modem switched to communicate with a second wireless gateway that is different from the first wireless gateway. In response, a second SD-WAN gateway is selected based on a relationship between the second wireless gateway and the second SD-WAN gateway. Criteria for establishing an additional communication tunnel are determined to be satisfied. In response to determining that the criteria have been satisfied, a second communication tunnel between the SD-WAN router and the second SD-WAN gateway is established, the terminal is configured to provide data through the first and the second communication tunnel.
An unitary one-piece construction feed for a high frequency band antenna, the feed including: a feed horn; and a polarizer comprising a void and multiple sets of ridges disposed in the void, wherein the polarizer is in direct contact with the feed horn and the unitary one-piece construction feed is capable of operating with a carrier signal ranging across one or two consecutive bands selected from Ku, K, Ka and Q bands, for example, from 17.3 GHz to 31 GHz.
H01Q 1/28 - Adaptation pour l'utilisation dans ou sur les avions, les missiles, les satellites ou les ballons
H01Q 5/20 - Dispositions pour faire fonctionner simultanément des antennes sur plusieurs gammes d'ondes, p. ex. dispositions bibandes ou multibandes caractérisées par les gammes d'ondes exploitées
Methods, systems, and apparatus, including computer programs encoded on computer-storage media, for terminal-to-terminal communication in satellite networks. In some implementations, a system includes an application server that enables a communication session that routes user data between a first terminal and a second terminal over a satellite communication network without routing the user data through any intermediate ground stations.
A system can include a phase timing offset component that generates a first signal to indicate an offset of a first symbol from a reference signal and an accumulator component that combines the offset of the first symbol with a first phase increment based on the reference signal. The system can additionally include a memory that stores a first shaping parameter to modify a filter coefficient to be applied to the first symbol based on the first phase increment and an interpolator that modifies the first shaping parameter for the first phase increment to adjust for the offset of the first symbol.
Systems and methods for operating a satellite terminal for a multi-band hybrid satellite communication system include receiving a configuration file for a satellite terminal for the satellite communication system; determining frequency band(s) supported by the satellite terminal from the configuration file; automatically selecting a best available outroute that is compatible with the frequency band(s) supported by the satellite terminal even if the best available outroute is not an anchor route listed in the configuration file; and performing a commissioning process to connect the satellite terminal to a satellite associated with the best available outroute.
26.
MULTI-BAND HYBRID SATELLITE COMMUNICATION SYSTEMS AND METHODS
Systems and methods for outroute load balancing in a multi-band hybrid satellite communication system include comparing the load metric of each of code rate organizers (CROs) to a threshold value; placing each CRO in one of a surplus load balancing set and a deficit balancing set based on a value of the load metric; and determining a probability metric for each satellite terminal associated with each of the CROs in the surplus load balancing set. The probability metric indicates a probability of the terminal moving to one of the CROs in the deficit load balancing set. At least one satellite terminal associated with one of the CROs in the surplus load balancing set is then caused to switch to one of the CROs in the deficit load balancing set based on the probability metric of the at least one satellite terminal.
27.
POLYHEDRAL ANTENNA FOR LOW-EARTH-ORBIT SATELLITE SYSTEMS
Polyhedral antenna systems are described for improving satellite communication links. Using conventional planar satellite antennas, user terminals closer to the edge of coverage (EoC) of the antenna tend to experience appreciable scan loss relative to user terminals closer to the nadir. Polyhedral antenna systems described herein (e.g., pyramidal antennas) include planar sub-antennas pointing in both nadir and EoC directions, which manifests an improved aggregate antenna response relative to conventional antenna approaches. For example, in orbit, the boresight of at least one sub-antenna is pointing substantially in a nadir direction, and the boresight of at least another of the sub-antennas is pointing substantially in the EoC direction. Embodiments can use interference mitigation techniques to reduce interference between sub-antennas. Ground terminals can be assigned to whichever of the sub-antennas provides the ground terminal with the highest-gain satellite link.
Methods, systems, and apparatus, including computer programs encoded on computer-storage media, for beamforming for satellite networking systems. In some implementations, a beamforming system includes multiple processors. Each of the processors has a data link to communicate with a modem, and each of the processors has a data link to communicate with each of the other processors. Each of the processors is configured to communicate with a different subset of antenna elements of an antenna array. The beamforming system is configured to perform beamforming processing for each of multiple beams for each sampling period in a sequence of sampling periods. The processing can include distributing communication between the beamforming system and the antenna array among the multiple processors for each of the sampling periods. The processing can include varying which of the processors performs beamforming processing for the different sampling periods according to a predetermined pattern.
H04B 7/06 - Systèmes de diversitéSystèmes à plusieurs antennes, c.-à-d. émission ou réception utilisant plusieurs antennes utilisant plusieurs antennes indépendantes espacées à la station d'émission
29.
Method and System for Hybrid Software Defined Networking in a Terrestrial Plus Mobile Network Node Network
A method and system for simplifying interactions of a Software Defined Network (SDN) controller including: receiving a network program to traverse a mobile node network including mobile nodes and ground nodes, wherein the ground nodes include an ingress node and an egress node; forecasting links, based on a temporal line-of-sight topology, of the mobile node network between the mobile nodes and the ground nodes; determining network program subfunctions that reflect an availability of the links for a time period; selecting, for the time period, a viable path including one or more of the network program subfunctions to traverse from the ingress node to the egress node; and communicating network traffic from the ingress node to the egress node using the viable path during the time period, wherein a portion of the viable path traverses one or more of the mobile nodes and the mobile nodes move along deterministic paths.
Methods, systems, and apparatus, including computer programs encoded on computer-storage media, for beamforming for satellite networking systems. In some implementations, a beamforming system includes multiple processors. Each of the processors has a data link to communicate with a modem, and each of the processors has a data link to communicate with each of the other processors. Each of the processors is configured to communicate with a different subset of antenna elements of an antenna array. The beamforming system is configured to perform beamforming processing for each of multiple beams for each sampling period in a sequence of sampling periods. The processing can include distributing communication between the beamforming system and the antenna array among the multiple processors for each of the sampling periods. The processing can include varying which of the processors performs beamforming processing for the different sampling periods according to a predetermined pattern.
H04B 7/06 - Systèmes de diversitéSystèmes à plusieurs antennes, c.-à-d. émission ou réception utilisant plusieurs antennes utilisant plusieurs antennes indépendantes espacées à la station d'émission
Techniques are described herein for non-terrestrial network (NTN) communications via one or more transparent-mode non-geosynchronous (NGSO) satellites. Embodiments extend a terrestrial wireless network (TWN), such as 5G NR, for use with the satellites. Analog feeder uplink and downlink waveforms are formatted to carry forward and return direct-to-device (DtD) signals over respective subchannel channels, and the subchannels can be assigned with time and frequency dimensions that are compatible with resource block assignments of the TWN protocols. Use of the analog subchannels and time-division multiplexing with beam-hopping facilitates satellite communication of the DtD signals effectively as an extension of the TWN. Embodiments also support communication of satellite control signals as part of the analog feeder uplink waveform, and inter-satellite link (ISL) routing and communication on-board the satellite.
H04W 16/28 - Structures des cellules utilisant l'orientation du faisceau
H04W 40/20 - Sélection d'itinéraire ou de voie de communication, p. ex. routage basé sur l'énergie disponible ou le chemin le plus court sur la base de la position ou de la localisation géographique
Techniques are described herein for non-terrestrial network (NTN) communications via one or more transparent-mode non-geosynchronous (NGSO) satellites. Embodiments extend a terrestrial wireless network (TWN), such as 5G NR, for use with the satellites. Analog feeder uplink and downlink waveforms are formatted to carry forward and return direct-to-device (DtD) signals over respective subchannel channels, and the subchannels can be assigned with time and frequency dimensions that are compatible with resource block assignments of the TWN protocols. Use of the analog subchannels and time-division multiplexing with beam-hopping facilitates satellite communication of the DtD signals effectively as an extension of the TWN. Embodiments also support communication of satellite control signals as part of the analog feeder uplink waveform, and inter-satellite link (ISL) routing and communication on-board the satellite.
Techniques are described for implementing multiband digital predistortion in a broadband transmitter in a manner that provides effective compensation of non-linear distortion arising from integration of a high-power amplifier (HPA). Embodiments segment the signal spectrum of a transmit signal into multiple sub-band signals and apply non-linear distortion compensation separately and concurrently for each sub-band signal. The resulting multi-band digital predistortion (mDPD) compensates both for in-band distortion and for distortions from non-linear interactions between the frequency sub-bands. The disclosed mDPD can provide enhanced performance features, such as handling of memory effects, reduced sampling rate requirements for DPD components, and minimizing detrimental spectral regrowth at the HPA output.
A system and method for quality of experience (QoE)-aware transmission over multi-transport is disclosed. The system receives requests for transmitting data packets from source node to destination node in wireless communication network. Further, the system determines payload data of the data packet and n-tuple information associated with the data packet. Furthermore, the system analyzes packet level metrics associated with determined payload data of data packet. Additionally, system classifies data packets into a latency class (LC) and a Quality of Service (QoS) class based on the analyzed packet level metrics. Further, the system determines connection identifier (ID) associated with data packet. Further, the system determines appropriate multi-transport access network (MTAN) among plurality of MTANs for transmitting data packet to destination node. Furthermore, the system establishes multi-path (MP) backbone connection with destination node using determined appropriate MTAN. Additionally, the system transmits data packet to destination node through established MP backbone connection.
H04L 47/2408 - Trafic caractérisé par des attributs spécifiques, p. ex. la priorité ou QoS pour la prise en charge de différents services, p. ex. services du type services différentiés [DiffServ]
H04L 47/2441 - Trafic caractérisé par des attributs spécifiques, p. ex. la priorité ou QoS en s'appuyant sur la classification des flux, p. ex. en utilisant des services intégrés [IntServ]
H04W 28/086 - Équilibrage ou répartition des charges entre les entités d’accès
H04W 28/08 - Équilibrage ou répartition des charges
35.
QUALITY OF EXPERIENCE (QOE)-AWARE TRANSMISSION OVER MULTI-TRANSPORT
A system and method for quality of experience (QoE)-aware transmission over multi-transport is disclosed. The system receives requests for transmitting data packets from source node to destination node in wireless communication network. Further, the system determines payload data of the data packet and n-tuple information associated with the data packet. Furthermore, the system analyzes packet level metrics associated with determined payload data of data packet. Additionally, system classifies data packets into a latency class (LC) and a Quality of Service (QoS) class based on the analyzed packet level metrics. Further, the system determines connection identifier (ID) associated with data packet. Further, the system determines appropriate multi-transport access network (MTAN) among plurality of MTANs for transmitting data packet to destination node. Furthermore, the system establishes multi-path (MP) backbone connection with destination node using determined appropriate MTAN. Additionally, the system transmits data packet to destination node through established MP backbone connection.
H04L 43/0805 - Surveillance ou test en fonction de métriques spécifiques, p. ex. la qualité du service [QoS], la consommation d’énergie ou les paramètres environnementaux en vérifiant la disponibilité
An expandable phased-array antenna assembly is described herein for mounting on a communication satellite. Embodiments include an expander carriage configured electromechanically to transition between a retracted configuration (e.g., during launch and initial deployment) and an expanded configuration (e.g., during operational ground communications) along an expansion direction. Embodiments include zigzag-shaped struts coupled with the expander carriage and having phased-array radiating elements (REs) mounted thereon. The expander carriage operate so that the struts are spaced at a smaller inter-strut spacing in the retracted configuration and at a larger inter-strut spacing in the expanded configuration. The struts and REs are arranged so that, in the expanded configuration, the REs form an operational phased-array lattice pattern. In some embodiments, the physical area of the phased-array antenna is at least forty percent smaller in the retracted configuration than in the expanded configuration.
H01Q 3/34 - Dispositifs pour changer ou faire varier l'orientation ou la forme du diagramme de directivité des ondes rayonnées par une antenne ou un système d'antenne faisant varier la phase relative ou l’amplitude relative et l’énergie d’excitation entre plusieurs éléments rayonnants actifsDispositifs pour changer ou faire varier l'orientation ou la forme du diagramme de directivité des ondes rayonnées par une antenne ou un système d'antenne faisant varier la distribution de l’énergie à travers une ouverture rayonnante faisant varier la phase par des moyens électriques
H01Q 1/08 - Moyens pour replier tout ou partie des antennes
H01Q 1/28 - Adaptation pour l'utilisation dans ou sur les avions, les missiles, les satellites ou les ballons
H01Q 3/28 - Dispositifs pour changer ou faire varier l'orientation ou la forme du diagramme de directivité des ondes rayonnées par une antenne ou un système d'antenne faisant varier la phase relative ou l’amplitude relative et l’énergie d’excitation entre plusieurs éléments rayonnants actifsDispositifs pour changer ou faire varier l'orientation ou la forme du diagramme de directivité des ondes rayonnées par une antenne ou un système d'antenne faisant varier la distribution de l’énergie à travers une ouverture rayonnante faisant varier l'amplitude
37.
RADIO-FREQUENCY (RF) GATEWAY REDUNDANCY SCHEMES FOR SATELLITE COMMUNICATION NETWORKS
A radio-frequency (RF) redundancy method includes designating a plurality of RF gateways as initial primary RF gateways and designating an additional RF gateway as an initial backup RF gateway for the satellite communication system. A fault condition is detected in a first initial primary RF gateway, and a first switchover process is performed to switch the first initial primary RF gateway to a current backup RF gateway and to switch the initial backup RF gateway to a first current primary RF gateway. When a second initial primary RF gateway has the fault condition, a second switchover process is performed to switch the current backup RF gateway to a second current primary RF gateway and to switch the second initial primary RF gateway to the current backup RF gateway.
H04W 40/36 - Modification d'une voie d'acheminement existante en raison d'un transfert
H04W 40/28 - Gestion d'informations sur la connectabilité, p. ex. exploration de connectabilité ou mise à jour de connectabilité pour acheminement réactif
38.
RADIO-FREQUENCY (RF) GATEWAY REDUNDANCY SCHEMES FOR SATELLITE COMMUNICATION NETWORKS
A radio-frequency (RF) redundancy method includes designating a plurality of RF gateways as initial primary RF gateways and designating an additional RF gateway as an initial backup RF gateway for the satellite communication system. A fault condition is detected in a first initial primary RF gateway, and a first switchover process is performed to switch the first initial primary RF gateway to a current backup RF gateway and to switch the initial backup RF gateway to a first current primary RF gateway. When a second initial primary RF gateway has the fault condition, a second switchover process is performed to switch the current backup RF gateway to a second current primary RF gateway and to switch the second initial primary RF gateway to the current backup RF gateway.
An expandable phased-array antenna assembly is described herein for mounting on a communication satellite. Embodiments include an expander carriage configured electromechanically to transition between a retracted configuration (e.g., during launch and initial deployment) and an expanded configuration (e.g., during operational ground communications) along an expansion direction. Embodiments include zigzag-shaped struts coupled with the expander carriage and having phased-array radiating elements (REs) mounted thereon. The expander carriage operate so that the struts are spaced at a smaller inter-strut spacing in the retracted configuration and at a larger inter-strut spacing in the expanded configuration. The struts and REs are arranged so that, in the expanded configuration, the REs form an operational phased-array lattice pattern. In some embodiments, the physical area of the phased-array antenna is at least forty percent smaller in the retracted configuration than in the expanded configuration.
09 - Appareils et instruments scientifiques et électriques
Produits et services
Telecommunications services, namely, wireless telephony and wireless broadband communications services for the transmission of voice and data; Satellite transmission services; Telecommunication services, namely, local and long distance transmission of voice, data, graphics by means of telephone, telegraphic, cable, and satellite transmissions; Transmission and delivery of voice, video, data, messages or documents via satellite, telephone, computer, global communications network, or a global computer information network; Leasing satellite transmission capacity; Providing multiple-user access to a global computer information network Satellite dishes; Satellite radios; Satellite processors; Satellite transmitters and receivers; Telecommunications equipment, namely, fiber-optic transceivers, fiber optic repeaters, converters and optimizers, wave division multiplexers, free-space optics transmission systems, switches including Ethernet switches and routers, fiber-to-the-home and ethernet-over-VDSL access aggregators, terminators and repeaters, and remote presence management products, namely, switches, and console, alarm, sensor and power management devices; Broadband wireless equipment, namely, telecommunications base station equipment for cellular and fixed networking and communications applications; Satellite communications terminals; Satellite communications (SATCOM) terminals; Telecommunications transmitters; Telecommunication base stations; Electronic transmitters and receivers for telecommunications and electronic signals; Computer hardware and recorded software systems for telecommunications equipment, broadband wireless equipment, satellite communications equipment, very small aperture terminals (VSAT) equipment; Receivers for electronic signals
09 - Appareils et instruments scientifiques et électriques
Produits et services
Telecommunications services, namely, wireless telephony and wireless broadband communications services for the transmission of voice and data; Satellite transmission services; Telecommunication services, namely, local and long distance transmission of voice, data, graphics by means of telephone, telegraphic, cable, and satellite transmissions; Transmission and delivery of voice, video, data, messages or documents via satellite, telephone, computer, global communications network, or a global computer information network; Leasing satellite transmission capacity; Providing multiple-user access to a global computer information network Satellite dishes; Satellite receivers; Satellite radios; Satellite processors; Satellite transceivers; Satellite transmitters and receivers; Telecommunications equipment, namely, fiber-optic transceivers, fiber optic repeaters, converters and optimizers, wave division multiplexers, free-space optics transmission systems, switches including Ethernet switches and routers, fiber-to-the-home and ethernet-over-VDSL access aggregators, terminators and repeaters, and remote presence management products, namely, switches, and console, alarm, sensor and power management devices; Broadband wireless equipment, namely, telecommunications base station equipment for cellular and fixed networking and communications applications; Satellite communications terminals; Satellite communications (SATCOM) terminals; Telecommunications transmitters; Telecommunication base stations; Electronic transmitters and receivers for telecommunications and electronic signals; Computer hardware and recorded software systems for telecommunications equipment, broadband wireless equipment, satellite communications equipment, very small aperture terminals (VSAT) equipment; Receivers for electronic signals
Systems and methods are described herein for providing a direct radiating antenna (DRA) for installation on a communication satellite. The DRA is a phased array of microstrip patch antennas implemented in a very compact profile on a planar substrate. Embodiments of array are implemented as an array of radiating element configurations, each having a microstrip radiating element (e.g., a square patch) coupled to a first side of the planar substrate, amplifiers coupled to a second side of the planar substrate, and filters (e.g., diplexers) coupled between the radiating elements and amplifiers. A thermal conduction layer (e.g., a graphoil or vapor chamber layer) is thermally coupled with the second side of the planar substrate, and a thermal radiation layer (e.g., an optical solar reflector) is thermally coupled with the thermal conduction layer.
Systems and methods are described herein for providing network and protocol architectures to achieve efficient high speed data services in an integrated terrestrial-non-terrestrial network (iTNTN). The iTNTN can include at least a non-geostationary orbit (NGSO) satellite system and terrestrial radio access and core network infrastructures based on cellular standards (e.g., 5G). Embodiments specially configure packet-based routing and dynamic cell-CU-DU (cell to centralized unit to distributed unit) association to accommodate dynamically changing LEO satellite locations and other iTNTN characteristics. These and other configurations are used to enable features, including end-to-end IP data and Layer 2 data services, integrated LEO-GEO (low-Earth orbit and geosynchronous Earth orbit) and LEO-MEO (low-Earth orbit and medium-Earth orbit) services, direct UT-UT (user terminal to user terminal) services, and resource efficient multicast services.
Systems and methods are described herein for providing network and protocol architectures to achieve efficient high speed data services in an integrated terrestrial-non-terrestrial network (iTNTN). The iTNTN can include at least a non-geostationary orbit (NGSO) satellite system and terrestrial radio access and core network infrastructures based on cellular standards (e.g., 5G). Embodiments specially configure packet-based routing and dynamic cell-CU-DU (cell to centralized unit to distributed unit) association to accommodate dynamically changing LEO satellite locations and other iTNTN characteristics. These and other configurations are used to enable features, including end-to-end IP data and Layer 2 data services, integrated LEO-GEO (low-Earth orbit and geosynchronous Earth orbit) and LEO-MEO (low-Earth orbit and medium-Earth orbit) services, direct UT-UT (user terminal to user terminal) services, and resource efficient multicast services.
Various arrangements for determining location suitability for satellite communication are presented herein. A mobile device can install an augmented reality (AR) application to output, via a display of the mobile device, a user interface depicting a field of view being captured by a camera of the mobile device. The AR application can capture, via the camera, one or more frames of an overhead area that collectively map a 360-degree representation of the overhead area. The one or more frames can be used to determine that continuous communication with a satellite constellation is available. The AR application can output, via the display, an obstruction map based on the one or more frames that indicates open sky available for communication with the satellite constellation.
Systems and methods are described herein for providing network and protocol architectures to achieve efficient high speed data services in an integrated terrestrial-non-terrestrial network (iTNTN). The iTNTN can include at least a non-geostationary orbit (NGSO) satellite system and terrestrial radio access and core network infrastructures based on cellular standards (e.g., 5G). Embodiments specially configure packet-based routing and dynamic cell-CU-DU (cell to centralized unit to distributed unit) association to accommodate dynamically changing LEO satellite locations and other iTNTN characteristics. These and other configurations are used to enable features, including end-to-end IP data and Layer 2 data services, integrated LEO-GEO (low-Earth orbit and geosynchronous Earth orbit) and LEO-MEO (low-Earth orbit and medium-Earth orbit) services, direct UT-UT (user terminal to user terminal) services, and resource efficient multicast services.
H04B 7/0408 - Systèmes de diversitéSystèmes à plusieurs antennes, c.-à-d. émission ou réception utilisant plusieurs antennes utilisant plusieurs antennes indépendantes espacées utilisant plusieurs faisceaux, c.-à-d. diversité de faisceaux
Systems and methods are described herein for providing network and protocol architectures to achieve efficient high speed data services in an integrated terrestrial-non-terrestrial network (iTNTN). The iTNTN can include at least a non-geostationary orbit (NGSO) satellite system and terrestrial radio access and core network infrastructures based on cellular standards (e.g., 5G). Embodiments specially configure packet-based routing and dynamic cell-CU-DU (cell to centralized unit to distributed unit) association to accommodate dynamically changing LEO satellite locations and other iTNTN characteristics. These and other configurations are used to enable features, including end-to-end IP data and Layer 2 data services, integrated LEO-GEO (low-Earth orbit and geosynchronous Earth orbit) and LEO-MEO (low-Earth orbit and medium-Earth orbit) services, direct UT-UT (user terminal to user terminal) services, and resource efficient multicast services.
Various arrangements for determining location suitability for satellite communication are presented herein. A mobile device can install an augmented reality (AR) application to output, via a display of the mobile device, a user interface depicting a field of view being captured by a camera of the mobile device. The AR application can capture, via the camera, one or more frames of an overhead area that collectively map a 360-degree representation of the overhead area. The one or more frames can be used to determine that continuous communication with a satellite constellation is available. The AR application can output, via the display, an obstruction map based on the one or more frames that indicates open sky available for communication with the satellite constellation.
Systems and methods are described herein for providing a direct radiating antenna (DRA) for installation on a communication satellite. The DRA is a phased array of microstrip patch antennas implemented in a very compact profile on a planar substrate. Embodiments of array are implemented as an array of radiating element configurations, each having a microstrip radiating element (e.g., a square patch) coupled to a first side of the planar substrate, amplifiers coupled to a second side of the planar substrate, and filters (e.g., diplexers) coupled between the radiating elements and amplifiers. A thermal conduction layer (e.g., a graphoil or vapor chamber layer) is thermally coupled with the second side of the planar substrate, and a thermal radiation layer (e.g., an optical solar reflector) is thermally coupled with the thermal conduction layer.
H01Q 1/28 - Adaptation pour l'utilisation dans ou sur les avions, les missiles, les satellites ou les ballons
H01Q 1/02 - Dispositifs de dégivrageDispositifs de séchage
H01Q 3/26 - Dispositifs pour changer ou faire varier l'orientation ou la forme du diagramme de directivité des ondes rayonnées par une antenne ou un système d'antenne faisant varier la phase relative ou l’amplitude relative et l’énergie d’excitation entre plusieurs éléments rayonnants actifsDispositifs pour changer ou faire varier l'orientation ou la forme du diagramme de directivité des ondes rayonnées par une antenne ou un système d'antenne faisant varier la distribution de l’énergie à travers une ouverture rayonnante
H01Q 21/06 - Réseaux d'unités d'antennes, de même polarisation, excitées individuellement et espacées entre elles
Various arrangements for improving performance of code split communications are presented herein. A second portion of a first codeword and a third portion of a second codeword can be transmitted using symbols such that each transmitted symbol includes bits from the second portion of the first codeword and bits from the third portion of the second codeword. At a receiver, decoder inputs can be generated for the third portion of the second codeword based on an optimized constellation and the second portion of the first codeword. The second portion of the first codeword is used to identify a label group of the optimized constellation and eliminate all other label groups of the plurality of label groups. Within each label group, symbol labels are Gray labeled. However, at least a first symbol label is not Gray labeled with an adjacent second symbol label of a different label group.
H04L 1/00 - Dispositions pour détecter ou empêcher les erreurs dans l'information reçue
H03M 13/25 - Détection d'erreurs ou correction d'erreurs transmises par codage spatial du signal, c.-à-d. en ajoutant une redondance dans la constellation du signal, p. ex. modulation codée en treillis [TMC]
Methods, systems, and apparatus, including computer programs encoded on computer storage media, for shaping backhaul traffic. In some implementations, a system receives forward channel data to transmit to one or more terminals. The system receives a message from a gateway over a backhaul network, wherein the message includes buffer information for a data buffer of the gateway. The system determines a data transfer rate for transmitting the forward channel data to the gateway over the backhaul network, wherein the data transfer rate is determined at least in part based on the buffer information in the message from the gateway. The system transmits the forward channel data to the gateway over the backhaul network at the determined data transfer rate.
Methods, systems, and apparatus, including computer programs encoded on computer storage media, for shaping backhaul traffic. In some implementations, a system receives forward channel data to transmit to one or more terminals. The system receives a message from a gateway over a backhaul network, wherein the message includes buffer information for a data buffer of the gateway. The system determines a data transfer rate for transmitting the forward channel data to the gateway over the backhaul network, wherein the data transfer rate is determined at least in part based on the buffer information in the message from the gateway. The system transmits the forward channel data to the gateway over the backhaul network at the determined data transfer rate.
H04L 47/30 - Commande de fluxCommande de la congestion en combinaison avec des informations sur l'occupation de mémoires tampon à chaque extrémité ou aux nœuds de transit
H04W 28/02 - Gestion du trafic, p. ex. régulation de flux ou d'encombrement
53.
DYNAMIC INROUTE RECONFIGURATION OF SATELLITE NETWORK COMMUNICATION SYSTEMS
Dynamic in-route reconfiguration in a satellite network includes receiving at least one of transmit power capability and demand requirements from one or more active satellite terminals of the satellite network, determining a resulting in-route configuration during operation of the satellite network based on the received at least one of transmit power capability and demand requirements, comparing the determined resulting in-route configuration to a current in-route configuration. When the determined resulting in-route configuration is different from the current in-route configuration, establishing the determined resulting in-route configuration as the current in-route configuration and storing the established current in-route configuration in a dynamic in-route reconfiguration manager, and transmitting the established current in-route configuration to the one or more active satellite terminals.
Systems and methods for processing bit-interleaved coded modulation (BICM) signals from a BICM transmitter to generate information bit estimates of information in the BICM signals, including a decoder to generate the information bit estimates of the information in the received BICM signals and a symbol a posteriori probability (APP) generator to generate first symbol a posteriori probabilities (APPs) by processing the BICM signals based on Euclidean distances derived from the BICM signals, and further based on symbol probability log-likelihood ratios (SPLLRs) provided to the symbol APP generator by an extrinsic-information-based symbol probability log-likelihood ratio (SPLLR) generator. The SPLLR generator generates the SPLLRs directly from extrinsic information based on updated symbol APPs output from the decoder, without converting the extrinsic information into log-likelihoods (LLs), and the decoder generates the information bit estimates based on the first symbol APPs output from the symbol APP generator.
H04L 1/00 - Dispositions pour détecter ou empêcher les erreurs dans l'information reçue
H03M 13/11 - Détection d'erreurs ou correction d'erreurs transmises par redondance dans la représentation des données, c.-à-d. mots de code contenant plus de chiffres que les mots source utilisant un codage par blocs, c.-à-d. un nombre prédéterminé de bits de contrôle ajouté à un nombre prédéterminé de bits d'information utilisant plusieurs bits de parité
H03M 13/37 - Méthodes ou techniques de décodage non spécifiques à un type particulier de codage prévu dans les groupes
55.
SIMPLIFIED SYSTEM AND METHOD FOR BIT-INTERLEAVED CODED MODULATION WITH ITERATIVE DECODING (BICM-ID)
Systems and methods for processing bit-interleaved coded modulation (BICM) signals from a BICM transmitter to generate information bit estimates of information in the BICM signals, including a decoder to generate the information bit estimates of the information in the received BICM signals and a symbol a posteriori probability (APP) generator to generate first symbol a posteriori probabilities (APPs) by processing the BICM signals based on Euclidean distances derived from the BICM signals, and further based on symbol probability log-likelihood ratios (SPLLRs) provided to the symbol APP generator by an extrinsic-information-based symbol probability log-likelihood ratio (SPEER) generator. The SPEER generator generates the SPLLRs directly from extrinsic information based on updated symbol APPs output from the decoder, without converting the extrinsic information into log-likelihoods (LLs), and the decoder generates the information bit estimates based on the first symbol APPs output from the symbol APP generator.
H04L 1/00 - Dispositions pour détecter ou empêcher les erreurs dans l'information reçue
H03M 13/25 - Détection d'erreurs ou correction d'erreurs transmises par codage spatial du signal, c.-à-d. en ajoutant une redondance dans la constellation du signal, p. ex. modulation codée en treillis [TMC]
H03M 13/00 - Codage, décodage ou conversion de code pour détecter ou corriger des erreursHypothèses de base sur la théorie du codageLimites de codageMéthodes d'évaluation de la probabilité d'erreurModèles de canauxSimulation ou test des codes
H04L 25/06 - Moyens pour rétablir le niveau à courant continuCorrection de distorsion de polarisation
56.
MULTI-BAND HYBRID SATELLITE COMMUNICATION SYSTEMS AND METHODS
Systems and methods for operating a satellite terminal for a multi-band hybrid satellite communication system include receiving a configuration file for a satellite terminal for the satellite communication system; determining frequency band(s) supported by the satellite terminal from the configuration file; automatically selecting a best available outroute that is compatible with the frequency band(s) supported by the satellite terminal even if the best available outroute is not an anchor route listed in the configuration file; and performing a commissioning process to connect the satellite terminal to a satellite associated with the best available outroute.
H04B 7/06 - Systèmes de diversitéSystèmes à plusieurs antennes, c.-à-d. émission ou réception utilisant plusieurs antennes utilisant plusieurs antennes indépendantes espacées à la station d'émission
H04W 72/0453 - Ressources du domaine fréquentiel, p. ex. porteuses dans des AMDF [FDMA]
57.
MULTI-BAND HYBRID SATELLITE COMMUNICATION SYSTEMS AND METHODS
Systems and methods for outroute load balancing in a multi-band hybrid satellite communication system include comparing the load metric of each of code rate organizers (CROs) to a threshold value; placing each CRO in one of a surplus load balancing set and a deficit balancing set based on a value of the load metric; and determining a probability metric for each satellite terminal associated with each of the CROs in the surplus load balancing set. The probability metric indicates a probability of the terminal moving to one of the CROs in the deficit load balancing set. At least one satellite terminal associated with one of the CROs in the surplus load balancing set is then caused to switch to one of the CROs in the deficit load balancing set based on the probability metric of the at least one satellite terminal.
Systems and methods for a satellite communication system include identifying highly active terminals (HUTs) in a spot beam of a satellite; determining a first ratio of single-band HUTs that operate in a first frequency band only to multi-band HUTs that operate in the first frequency band and a second frequency band; and determining a second ratio of outroutes for the first frequency band to outroutes for the second frequency band. When the first ratio is less than the second ratio, a first step of balancing the single-band HUTs across the outroutes for the first frequency band is performed, and then the multi-band HUTs are balanced across both the outroutes for the first frequency band and the outroutes for the second frequency band. When the first ratio is greater than the second ratio, the single-band HUTs and the multi-band HUTs are allocated based on at least one weight factor.
Some implementations of the disclosure relate to a backend server that is configured to perform operations including: determining one or more radio frequency (RF) gateways that are candidates for communicating with an end device over a RF link in a low-power wide-area network (LPWAN); obtaining, for each of the one or more RF gateways, a round trip time (RTT) of communications between the backend server and the RF gateway over a backhaul link; determining whether at least one of the one or more RTTs exceeds a threshold value; and when at least one of the one or more RTTs exceeds the threshold value, increasing a configured time interval between transmission of an uplink message by the end device and a downlink receive time slot in which the end device is configured to listen for a downlink message.
H04W 72/27 - Canaux de commande ou signalisation pour la gestion des ressources entre points d’accès
H04W 72/0446 - Ressources du domaine temporel, p. ex. créneaux ou trames
H04W 72/542 - Critères d’affectation ou de planification des ressources sans fil sur la base de critères de qualité en utilisant la qualité mesurée ou perçue
A system and method for reducing usage of satellite channelizers including dividing a frequency spectrum into sub-bands; providing a satellite channelizer for each of the sub-bands, where each of the sub-bands may include channels; multiplexing service channels into the channels of one of the sub-bands, where the service channels convey data for a plurality of MSSs. A system and method for obtaining high throughput on a satellite network. A system and method for providing a Fair Access Policy (FAP) in a 4G system.
H04B 7/26 - Systèmes de transmission radio, c.-à-d. utilisant un champ de rayonnement pour communication entre plusieurs postes dont au moins un est mobile
H04L 47/20 - Commande de fluxCommande de la congestion en assurant le maintien du trafic
H04L 47/629 - Ordonnancement des files d’attente caractérisé par des critères d’ordonnancement en assurant une part équitable des ressources, p. ex. une file d'attente pondérée et équitable [WFQ]
H04W 4/10 - Services de messagerie instantanée vocale ou de messagerie sur appel
H04W 28/02 - Gestion du trafic, p. ex. régulation de flux ou d'encombrement
H04W 72/0446 - Ressources du domaine temporel, p. ex. créneaux ou trames
H04W 72/20 - Canaux de commande ou signalisation pour la gestion des ressources
Various arrangements for improving performance of code split communications are presented herein. A second portion of a first codeword and a third portion of a second codeword can be transmitted using symbols such that each transmitted symbol includes bits from the second portion of the first codeword and bits from the third portion of the second codeword. At a receiver, decoder inputs can be generated for the third portion of the second codeword based on an optimized constellation and the second portion of the first codeword. The second portion of the first codeword is used to identify a label group of the optimized constellation and eliminate all other label groups of the plurality of label groups. Within each label group, symbol labels are Gray labeled. However, at least a first symbol label is not Gray labeled with an adjacent second symbol label of a different label group.
Techniques described herein provide transmit power density limit normalization for electronically steerable antenna subsystems in user terminals having scan angle varying power spectral density limits. Embodiments can further simplify or eliminate impacts on UT modem and/or satellite ground networks, and can remove dependencies on the UT antenna type and its antenna performance characterization.
Techniques described herein provide transmit power density limit normalization for electronically steerable antenna subsystems in user terminals having scan angle varying power spectral density limits. Embodiments can further simplify or eliminate impacts on UT modem and/or satellite ground networks, and can remove dependencies on the UT antenna type and its antenna performance characterization.
H04W 52/36 - Commande de puissance d'émission [TPC Transmission power control] utilisant les limitations de la quantité totale de puissance d'émission disponible avec une plage ou un ensemble discrets de valeurs, p. ex. incrément, variation graduelle ou décalages
Various arrangements for improving performance of code split communications are presented herein. A second portion of a first codeword and a third portion of a second codeword can be transmitted using symbols such that each transmitted symbol includes bits from the second portion of the first codeword and bits from the third portion of the second codeword. At a receiver, decoder inputs can be generated for the third portion of the second codeword based on an optimized constellation and the second portion of the first codeword. The second portion of the first codeword is used to identify a label group of the optimized constellation and eliminate all other label groups of the plurality of label groups. Within each label group, symbol labels are Gray labeled. However, at least a first symbol label is not Gray labeled with an adjacent second symbol label of a different label group.
H04L 1/00 - Dispositions pour détecter ou empêcher les erreurs dans l'information reçue
H03M 13/25 - Détection d'erreurs ou correction d'erreurs transmises par codage spatial du signal, c.-à-d. en ajoutant une redondance dans la constellation du signal, p. ex. modulation codée en treillis [TMC]
Devices, systems and method for enabling radio communications between a plurality of users are disclosed herein. In an embodiment, a mobile tactical device includes a radio connection interface, at least one frequency filter and a controller. The radio connection interface is configured to receive communications from a mobile radio in a plurality of mobile frequencies. The frequency converter is configured to convert the plurality of mobile frequencies selected at the mobile radio into a plurality of transmission frequencies. The controller stores an assigned mobile frequency and an assigned transmission frequency for each of multiple talk groups. The controller is configured to set the frequency converter to convert communications from the mobile radio to the assigned transmission frequency for a specific talk group of the multiple talk groups upon determining that the assigned mobile frequency for the specific talk group has been selected at the mobile radio.
H04B 1/00 - Détails des systèmes de transmission, non couverts par l'un des groupes Détails des systèmes de transmission non caractérisés par le milieu utilisé pour la transmission
H04W 72/0453 - Ressources du domaine fréquentiel, p. ex. porteuses dans des AMDF [FDMA]
A system for inroute throttling in a satellite network is disclosed. The system includes an IP Gateway (IPGW) that may compute a volume usage count of inroute traffic associated with a terminal, compare the computed volume usage count of inroute traffic with a first threshold, and transmit, based on the comparison, a Fair Access Policy (FAP) state to the terminal. The FAP state corresponds to one of a throttled and an unthrottled. The system further includes an Inroute Group Manager (IGM) that may receive, from the terminal, the FAP state and apply a FAP, on the inroute traffic from the terminal, corresponding to the received FAP state.
Techniques are described for direct conversion and dynamic polarization control in a very small aperture terminal (VSAT) outdoor unit (ODU). The ODU includes a direct up-converter and/or a direct down-converter for converting in a single stage between a baseband frequency and a satellite radiofrequency band (e.g., Ka band). The ODU also includes a polarization amplifier that integrates high-power amplification with circular polarization orientation control. For example, the direct up-converter directly converts a baseband signal to a low-power satellite-RF transmit signal, and the polarization amplifier converts the low-power satellite-RF transmit signal to an uplink signal having high gain and selected circular polarization. The ODU can further include an integrated embedded computer and modem.
H01Q 3/00 - Dispositifs pour changer ou faire varier l'orientation ou la forme du diagramme de directivité des ondes rayonnées par une antenne ou un système d'antenne
A system and method for granting demand access to a data network from an Out of band (OOB) network, the method including: locking to an OOB inroute illuminating an OOB coverage area of the OOB network; transmitting an OOB request including a Demand Assigned Multiple Access (DAMA) request for the data network to an OOB Network Management System (NMS) via the OOB inroute; sending, from the OOB NMS, the DAMA request to a data NMS of the data network; and fulfilling the DAMA request.
Techniques are described for implementing multiband digital predistortion in a broadband transmitter in a manner that provides effective compensation of non-linear distortion arising from integration of a high-power amplifier (HPA). Embodiments segment the signal spectrum of a transmit signal into multiple sub-band signals and apply non-linear distortion compensation separately and concurrently for each sub-band signal. The resulting multi-band digital predistortion (mDPD) compensates both for in-band distortion and for distortions from non-linear interactions between the frequency sub-bands. The disclosed mDPD can provide enhanced performance features, such as handling of memory effects, reduced sampling rate requirements for DPD components, and minimizing detrimental spectral regrowth at the HPA output.
H03F 1/32 - Modifications des amplificateurs pour réduire la distorsion non linéaire
H03F 3/195 - Amplificateurs à haute fréquence, p. ex. amplificateurs radiofréquence comportant uniquement des dispositifs à semi-conducteurs dans des circuits intégrés
H03F 3/24 - Amplificateurs de puissance, p. ex. amplificateurs de classe B, amplificateur de classe C d'étages transmetteurs de sortie
A system for calibrating the multi-element antenna can include a computer including a processor and memory, wherein the memory stores instructions executable by the processor to detect a location of a laser signal incident on a receiving surface, the laser signal having been reflected from a reflector positioned over an area of a multi-element antenna. The instructions may additionally include instructions to compute a differential phase of an element of the multi-element antenna based on the detected location of the incident laser signal.
Techniques are described for implementing multiband digital predistortion in a broadband transmitter in a manner that provides effective compensation of non-linear distortion arising from integration of a high-power amplifier (HPA). Embodiments segment the signal spectrum of a transmit signal into multiple sub-band signals and apply non-linear distortion compensation separately and concurrently for each sub-band signal. The resulting multi-band digital predistortion (mDPD) compensates both for in-band distortion and for distortions from non-linear interactions between the frequency sub-bands. The disclosed mDPD can provide enhanced performance features, such as handling of memory effects, reduced sampling rate requirements for DPD components, and minimizing detrimental spectral regrowth at the HPA output.
A system and method for granting demand access to a data network from an Out of band (OOB) network, the method including: locking to an OOB inroute illuminating an OOB coverage area of the OOB network; transmitting an OOB request including a Demand Assigned Multiple Access (DAMA) request for the data network to an OOB Network Management System (NMS) via the OOB inroute; sending, from the OOB NMS, the DAMA request to a data NMS of the data network; and fulfilling the DAMA request.
H04B 7/26 - Systèmes de transmission radio, c.-à-d. utilisant un champ de rayonnement pour communication entre plusieurs postes dont au moins un est mobile
H04J 1/02 - Systèmes multiplex à division de fréquence Détails
H04W 48/14 - Distribution d'informations relatives aux restrictions d'accès ou aux accès, p. ex. distribution de données d'exploration utilisant une requête de l’utilisateur
A system for calibrating the multi-element antenna can include a computer including a processor and memory, wherein the memory stores instructions executable by the processor to detect a location of a laser signal incident on a receiving surface, the laser signal having been reflected from a reflector positioned over an area of a multi-element antenna. The instructions may additionally include instructions to compute a differential phase of an element of the multi-element antenna based on the detected location of the incident laser signal.
H01Q 3/32 - Dispositifs pour changer ou faire varier l'orientation ou la forme du diagramme de directivité des ondes rayonnées par une antenne ou un système d'antenne faisant varier la phase relative ou l’amplitude relative et l’énergie d’excitation entre plusieurs éléments rayonnants actifsDispositifs pour changer ou faire varier l'orientation ou la forme du diagramme de directivité des ondes rayonnées par une antenne ou un système d'antenne faisant varier la distribution de l’énergie à travers une ouverture rayonnante faisant varier la phase par des moyens mécaniques
74.
MACHINE LEARNING TO ENHANCE SATELLITE TERMINAL PERFORMANCE
Methods, systems, and apparatus, including computer programs encoded on computer-storage media, for using machine learning to detect and correct satellite terminal performance limitations. In some implementations, a system retrieves data indicating labels for clusters of network performance anomalies. The system generates a set of training data to train a machine learning model, the set of training data being generated by assigning the labels for the clusters to sets of performance indicators used to generate the clusters. The system trains a machine learning model to predict classifications for communication devices based on input of performance indicators for the communication devices. The system determines a classification for the communication device based on output that the trained machine learning model generates.
H04L 41/16 - Dispositions pour la maintenance, l’administration ou la gestion des réseaux de commutation de données, p. ex. des réseaux de commutation de paquets en utilisant l'apprentissage automatique ou l'intelligence artificielle
Systems and methods for providing application-layer characterization is disclosed. Quick User Datagram Protocol (UDP) Internet Connection (QUIC) is an end-to-end encrypted, transport-layer protocol, with a goal to improve communication security and quality of experience (QoE) towards end-users. The systems and methods disclosed herein relate to estimating application-level traffic attributes without decrypting QUIC packets. Based on size, timing, and direction information available in the encrypted packet, the system analyzes associated network traffic to infer an identity of each request and response pair, including time, size, and request-response match, as well as multiplexing feature in each QUIC connection. In the case of request and response multiplexing, several requests will be gathered and matched as a group with their corresponding responses, to form a super request-response pair. The inferred attributes may be used to evaluate the QoE of application-layer services and identify the service categories for traffic classification in the encrypted QUIC connections.
H04L 43/08 - Surveillance ou test en fonction de métriques spécifiques, p. ex. la qualité du service [QoS], la consommation d’énergie ou les paramètres environnementaux
H04L 41/5067 - Mesures de la qualité du service [QoS] centrées sur le client
Systems and methods for providing application-layer characterization is disclosed. Quick User Datagram Protocol (UDP) Internet Connection (QUIC) is an end-to-end encrypted, transport-layer protocol, with a goal to improve communication security and quality of experience (QoE) towards end-users. The systems and methods disclosed herein relate to estimating application-level traffic attributes without decrypting QUIC packets. Based on size, timing, and direction information available in the encrypted packet, the system analyzes associated network traffic to infer an identity of each request and response pair, including time, size, and request-response match, as well as multiplexing feature in each QUIC connection. In the case of request and response multiplexing, several requests will be gathered and matched as a group with their corresponding responses, to form a super request-response pair. The inferred attributes may be used to evaluate the QoE of application-layer services and identify the service categories for traffic classification in the encrypted QUIC connections.
Systems and methods for mitigating interference from a satellite gateway antenna are disclosed herein. In an embodiment, a method for mitigating interference from a satellite gateway antenna includes determining a power flux density radiation from the satellite gateway antenna in at least one direction in a horizontal plane, mounting at least one panel at an area in the at least one direction in the horizontal plane, orienting the at least one panel to have an azimuthal rotation relative to a look direction of the satellite gateway antenna in the horizontal plane, and orienting the at least one panel to have an upward tilt such that any reflection of horizontal rays of the power flux density radiation off of the at least one panel is not in the horizontal plane.
H01Q 17/00 - Dispositifs pour absorber les ondes rayonnées par une antenneCombinaisons de tels dispositifs avec des éléments ou systèmes d'antennes actives
78.
COMMUNICATION PARAMETER SELECTION WITH DYNAMIC BANDWIDTH ALLOCATION
Methods, systems, and apparatus, including computer programs encoded on computer storage media, for dynamic communication parameter selection. In some implementations, a system determines a number of resource blocks to use for one or more communications between a terminal and a gateway in a satellite communication network. The system determines a characteristic of a wireless channel used for communication, and selects a table that specifies transmission parameters to use for different combinations of numbers of resource blocks and wireless channel characteristics. The system determines transmission parameters based on an entry, retrieved from the identified table, that corresponds to the determined number of resource blocks and the determined characteristic of the wireless channel.
Methods, systems, and apparatus, including computer programs encoded on computer storage media, for dynamic communication parameter selection. In some implementations, a system determines a number of resource blocks to use for one or more communications between a terminal and a gateway in a satellite communication network. The system determines a characteristic of a wireless channel used for communication, and selects a table that specifies transmission parameters to use for different combinations of numbers of resource blocks and wireless channel characteristics. The system determines transmission parameters based on an entry, retrieved from the identified table, that corresponds to the determined number of resource blocks and the determined characteristic of the wireless channel.
Systems and methods for transferring data are disclosed herein. In an embodiment, a method of transferring data from a source memory includes generating a read command, storing the read command in first one or more frames of a burst buffer, reading a first beat of the source memory, discarding one or more unwanted bytes from the first beat of the source memory, and realigning one or more remaining bytes from the first beat of the source memory in next available frames of the burst buffer.
A communication terminal and its method of use are disclosed herein. In an embodiment, a communication terminal includes at least one of a transmitter or a receiver, a common reference device, a vibration sensor, a plurality of low-pass filters, and a controller. The at least one of the transmitter or the receiver is configured for transmission of communications. The common reference device is configured to provide a common reference for at least one of frequency or timing of the communications sent or received by the at least one of the transmitter or the receiver. The vibration sensor is configured to detect vibrations in multiple axes. The plurality of low-pass filters each correspond to one of the multiple axes and is configured to filter an output from the vibration sensor. The controller is configured to adjust the common reference device based on an output from the plurality of low-pass filters.
Methods, systems, and apparatus, for enhanced clock frequency control. In some implementations, a clock system tracks time using a clock signal having a clock frequency. An interface receives a time reference from a reference clock, and a feedback loop synchronizes the clock system with the reference clock. The feedback loop includes a feedback loop controller configured to determine a clock frequency adjustment for the clock system based on an offset between the time reference and a time indicated by the clock system. The feedback loop also includes a smoothing filter configured to alter the clock frequency adjustment determined using the feedback loop controller. The feedback loop updates the clock frequency of the clock system based on the altered clock frequency adjustment.
Methods, systems, and apparatus, for enhanced clock frequency control. In some implementations, a clock system tracks time using a clock signal having a clock frequency. An interface receives a time reference from a reference clock, and a feedback loop synchronizes the clock system with the reference clock. The feedback loop includes a feedback loop controller configured to determine a clock frequency adjustment for the clock system based on an offset between the time reference and a time indicated by the clock system. The feedback loop also includes a smoothing filter configured to alter the clock frequency adjustment determined using the feedback loop controller. The feedback loop updates the clock frequency of the clock system based on the altered clock frequency adjustment.
Devices, systems, methods, and non-transitory media facilitate image rejection for a radio frequency signal with a wideband carrier. Wideband signals from a device may be analyzed, the wideband signals corresponding to a wideband channel. Each wideband signal may correspond to a sinusoidal electrical signal with IQ amplitude and phase modulation. An in-phase component (I) of a wideband signal may be determined. A quadrature component (Q) of the wideband signal may be determined. Based on the determined I and Q, a wideband IQ imbalance may be determined. A scalar error based on the wideband IQ imbalance may be obtained. The scalar error may be mapped to a vector error plane. Orthogonal error vector points that are based on the mapping may be determined. The wideband IQ imbalance of the device may be compensated based on adjusting an IQ setting of the device with the orthogonal error vector points.
In some implementations, a radiofrequency down converter comprises an input port to receive a radiofrequency input signal, and the down converter includes a first bandpass filter configured to filter the input signal. The down converter includes a mixer stage coupled to the bandpass filter, the mixer stage being configured to generate a mixer output signal by processing the filtered input signal using a gain adjustment device, one or more amplifiers, and a mixer. The down converter includes a signal adjustment stage coupled to receive the mixer output signal, the signal adjustment stage comprising: a temperature compensation device configured to compensate for changes in signal gain due to changes in temperature; a second bandpass filter; a gain adjustment device; one or more amplifiers; and a low pass filter. The down converter comprises an output port coupled to output an adjusted mixer output signal from the signal adjustment stage.
An operational analytics system includes a plurality of access point devices and an electronic controller. The plurality of access point devices are configured to receive a wireless signal for at least one wireless device. The electronic controller is configured to receive a signal strength indicator for the at least one wireless device from the plurality of access point devices, calculate a position of the at least one wireless device based on the signal strength indicator for the at least one wireless device, and configured to determine a time the wireless device remains at the position, and when the time exceeds a threshold time, perform a mitigation operation.
G06Q 30/0201 - Modélisation du marchéAnalyse du marchéCollecte de données du marché
G06Q 10/0631 - Planification, affectation, distribution ou ordonnancement de ressources d’entreprises ou d’organisations
G06Q 10/087 - Gestion d’inventaires ou de stocks, p. ex. exécution des commandes, approvisionnement ou régularisation par rapport aux commandes
G06Q 30/018 - Certification d’entreprises ou de produits
G07C 1/10 - Enregistrement ou indication de l'heure d'un événement ou d'un temps écoulé, p. ex. horodateurs pour la main-d'œuvre combinés avec l'enregistrement ou l'indication d'autres données, p. ex. de signes d'identification
H04W 4/029 - Services de gestion ou de suivi basés sur la localisation
Techniques are described for implementing free space optical (FSO) ground-to-satellite communications. In general, an optical ground station communicates optically with a satellite via a ground-to-satellite FSO communication link. Embodiments described herein deploy at least two FSO relays at one or more aerial platform altitudes to effectively segment the ground-to-satellite FSO communication link into three or more FSO sub-links. Each FSO sub-link has better optical link performance (e.g., lower outage probability) than a single direct link. The FSO relays can include tropospheric FSO relays on low-altitude platforms and/or stratospheric FSO relays on high-altitude platforms, and architectures can use the FSO relays in a serial and/or parallel manner.
H04B 10/118 - Dispositions spécifiques à la transmission en espace libre, c.-à-d. dans l’air ou le vide spécialement adaptées aux communications par satellite
H04B 10/112 - Transmission dans la ligne de visée sur une distance étendue
Techniques are described for implementing free space optical (FSO) ground-to-satellite communications. In general, an optical ground station communicates optically with a satellite via a ground-to-satellite FSO communication link. Embodiments described herein deploy at least two FSO relays at one or more aerial platform altitudes to effectively segment the ground-to-satellite FSO communication link into three or more FSO sub-links. Each FSO sub-link has better optical link performance (e.g., lower outage probability) than a single direct link. The FSO relays can include tropospheric FSO relays on low-altitude platforms and/or stratospheric FSO relays on high-altitude platforms, and architectures can use the FSO relays in a serial and/or parallel manner.
H04B 10/118 - Dispositions spécifiques à la transmission en espace libre, c.-à-d. dans l’air ou le vide spécialement adaptées aux communications par satellite
A dose setting mechanism configured to set a desired dose for an injection device, the dose setting mechanism includes a housing, a dose setting knob, a dose setting device and a coupling element. The dose setting knob is configured to set the desired dose by a compulsory guided combined axial and rotational movement of the dose setting knob relative to the housing. Upon drug delivery, the dose setting knob is moved axially relative to the dose setting device or the housing and the coupling element is configured to engage at least one of the dose setting device and the housing to thereby permanently axially lock the dose setting knob to the respective one of the dose setting device and the housing.
Techniques described herein provide cancelation of cross-polarization interference during simultaneous receipt of radiofrequency signals (e.g., an X-signal and a Y-signal) in a same frequency channel in nominally orthogonal polarizations. Though nominally orthogonally polarized, each signal contributes some cross-polarization interference to the other. Embodiments receive and demodulate each signal by a corresponding demodulator to generate corresponding X-symbol and Y-symbol decision signals, referenced to a common clock domain. An X-channel adaptive canceler (X-CAC) generates an X-output signal by using one or more Y-symbol decision signals adaptively to cancel cross-polarization interference from the Y-signal, and a Y-CAC generates a Y-output signal by using one or more X-symbol decision signals adaptively to cancel cross-polarization interference from the X-signal (e.g., the X-CAC and the Y-CAC each using a first-order least mean squares control loop). The resulting X-output signal and Y-output signal can be further decoded and output by the receiver to downstream systems and/or components.
A redundant architecture for a Precision Time Protocol (FTP) network includes a plurality of PTP grandmaster clocks that provide first timing messages to a plurality of PTP aware switches based on a timing reference. The PTP aware switches determine respective first timing offsets based on the timing messages received from a primary grandmaster clock and provide second timing messages to an end node of the network based on the first timing offsets. The end node determines a second timing offset for the end node based on the second timing messages received from a primary PTP aware switch and adjusts its clock based on the second timing offset. When a failure of the primary grandmaster clock and/or the primary PTP aware switch is detected, a different grandmaster clock and/or a different PTP aware switch is designated as the primary grandmaster clock and the primary PTP aware switch, respectively.
A redundant architecture for a Precision Time Protocol (PTP) network includes a plurality of PTP grandmaster clocks that provide first timing messages to a plurality of PTP aware switches based on a timing reference. The PTP aware switches determine respective first timing offsets based on the timing messages received from a primary grandmaster clock and provide second timing messages to an end node of the network based on the first timing offsets. The end node determines a second timing offset for the end node based on the second timing messages received from a primary PTP aware switch and adjusts its clock based on the second timing offset. When a failure of the primary grandmaster clock and/or the primary PTP aware switch is detected, a different grandmaster clock and/or a different PTP aware switch is designated as the primary grandmaster clock and the primary PTP aware switch, respectively.
Systems, methods, and apparatus, including computer-readable media, for enhanced network communication using multiple network connections. In some implementations, a networking apparatus concurrently maintains connectivity to a network through each of multiple network transports. The networking apparatus receives one or more packets to be transmitted over the network and classifies the one or more packets to determine a class of service. The networking apparatus selects one of the multiple network transports to transmit the one or more packets based on (i) the class of service for the one or more packets and (ii) measures of expected latency for transmission of the one or more packets over the respective multiple network transports. The networking apparatus transmits the one or more packets using the selected network transport.
H04L 45/00 - Routage ou recherche de routes de paquets dans les réseaux de commutation de données
H04L 45/121 - Évaluation de la route la plus courte en minimisant les retards
H04L 45/302 - Détermination de la route basée sur la qualité de service [QoS] demandée
H04L 47/2441 - Trafic caractérisé par des attributs spécifiques, p. ex. la priorité ou QoS en s'appuyant sur la classification des flux, p. ex. en utilisant des services intégrés [IntServ]
94.
Dual mode power control circuits for RF transmitters
A dual-mode switchable power control circuit for an RF transmit signal path of an RF transmitter is switchable between an open-loop automatic gain control (AGC) mode and a closed-loop automatic level control (ALC) mode in the analog domain to provide power control for the RF transmit signal path. The open-loop AGC mode and the closed-loop ALC mode are both controlled based on the analog control signal on the same control line. In the open-loop AGC mode, the analog control signal corresponds to the AGC control voltage indicating a setpoint gain for the RF transmit signal path. In the closed-loop ALC mode, the analog control signal corresponds to an ALC reference voltage indicating a setpoint power output level for the RF transmit signal path.
Techniques are described for aligning an antenna's frame of reference to that of a transit craft without relying on precise physical antenna alignment during installation. For example, the antenna is installed on the craft in coarse alignment with the craft's three-dimensional reference frame. The antenna is initially steered based on obtaining ephemeris information for a radiofrequency (RF) node and receiving craft attitude and location information from an on-craft navigation system (OCNS). The antenna finds and locks onto an RF signal from the RF node and uses closed-loop tracking to optimize the antenna pointing to maximize signal quality. An alignment mapping is registered based on a misalignment between the optimized antenna pointing and the craft attitude as reported by the OCNS. The alignment mapping can be subsequently exploited to translate real-time attitude data from the OCNS for high-precision pointing and tracking by the antenna.
A dual-mode switchable power control circuit for an RF transmit signal path of an RF transmitter is switchable between an open-loop automatic gain control (AGC) mode and a closed-loop automatic level control (ALC) mode in the analog domain to provide power control for the RF transmit signal path. The open-loop AGC mode and the closed-loop ALC mode are both controlled based on the analog control signal on the same control line. In the open-loop AGC mode, the analog control signal corresponds to the AGC control voltage indicating a setpoint gain for the RF transmit signal path. In the closed-loop ALC mode, the analog control signal corresponds to an ALC reference voltage indicating a setpoint power output level for the RF transmit signal path.
Techniques are described for aligning an antenna's frame of reference to that of a transit craft without relying on precise physical antenna alignment during installation. For example, the antenna is installed on the craft in coarse alignment with the craft's three-dimensional reference frame. The antenna is initially steered based on obtaining ephemeris information for a radiofrequency (RF) node and receiving craft attitude and location information from an on-craft navigation system (OCNS). The antenna finds and locks onto an RF signal from the RF node and uses closed-loop tracking to optimize the antenna pointing to maximize signal quality. An alignment mapping is registered based on a misalignment between the optimized antenna pointing and the craft attitude as reported by the OCNS. The alignment mapping can be subsequently exploited to translate real-time attitude data from the OCNS for high-precision pointing and tracking by the antenna.
H01Q 3/08 - Dispositifs pour changer ou faire varier l'orientation ou la forme du diagramme de directivité des ondes rayonnées par une antenne ou un système d'antenne utilisant un mouvement mécanique de l'ensemble d'antenne ou du système d'antenne pour faire varier deux coordonnées de l'orientation
A system and method for device management in a multipath communication system includes: receiving candidate signal metrics data from a multipath modem of the device of supported combinations satellite networks and associated satellite frequencies and cellular networks and associated cellular frequencies; receiving subscriber data including a device location; evaluating the supported combinations by filtering supported satellite networks and supported cellular networks based upon internet service policies and/or network service policies in the device location; selecting configuration parameters having a selected satellite network and satellite frequency and a selected cellular network and cellular frequency based on the evaluated supported combinations; and transmitting the selected configuration parameters to the multipath modem to control operation of the multipath modem.
Systems and methods for integrating multi-path communication networks to provide In-Flight Connectivity (IFC) for users, by augmenting data streams from multi-path satellite networks are disclosed. The system includes IFC system and IAT to provide wireless network connectivity to user devices. The system includes SD-WAN router communicatively coupled to IFC system and IAT. The SD-WAN router receives request for accessing WAN from user devices, and determines parameters associated with data packets based on received request. The SD-WAN router classifies data packets into traffic types based on parameters. Furthermore, SD-WAN router prioritizes data packets based on traffic types and available network capacity for upstream transmission of data packets across IFC system and IAT. Additionally, SDWAN router determines appropriate WAN transport path associated with SD-WAN tunnel for upstream transmission based on traffic types and performance parameters. Further, SD-WAN router transmits data packets to WAN over determined WAN transport path.
Systems and methods for integrating multi-path communication networks to provide In-Flight Connectivity (IFC) for users, by augmenting data streams from multi-path satellite networks are disclosed. The system includes IFC system and IAT to provide wireless network connectivity to user devices. The system includes SD-WAN router communicatively coupled to IFC system and IAT. The SD-WAN router receives request for accessing WAN from user devices, and determines parameters associated with data packets based on received request. The SD-WAN router classifies data packets into traffic types based on parameters. Furthermore, SD-WAN router prioritizes data packets based on traffic types and available network capacity for upstream transmission of data packets across IFC system and IAT. Additionally, SD-WAN router determines appropriate WAN transport path associated with SD-WAN tunnel for upstream transmission based on traffic types and performance parameters. Further, SD-WAN router transmits data packets to WAN over determined WAN transport path.
