Abstract: A satellite-communications gateway includes a pedestal, a hub movably coupled to the pedestal and supported by the pedestal, an antenna configured for satellite communications, first electronics positioned inside the hub, and second electronics communicatively coupled to the first electronics and positioned inside the pedestal. The antenna is mounted to the hub and supported by the pedestal via the hub. The first electronics is arranged to convert a radio-frequency signal from the antenna to an intermediate-frequency signal and transmit the intermediate-frequency signal to the second electronics. The second electronics is arranged to convert the intermediate-frequency signal to a digital signal.

Abstract: Methods, systems, and devices for wireless communications are described. A first user equipment (UE) (e.g., a relay UE) may establish a relay connection for routing communications between a network entity (e.g., a base station) and a second UE (e.g., a remote UE). The relay connection may include a sidelink connection and an access link connection. The remote UE may transmit a request to the network entity via the relay UE. The request may include a relay service code associated with the sidelink connection, as well as a request for quality of service (QoS) support for the relay connection. Based on the request, the network entity may determine a QoS configuration for the relay connection. The network entity may indicate the QoS configuration to the UEs via the relay connection. The UEs may adjust parameters of the relay connection to meet the specifications of the QoS configuration.

Abstract: A network management systems (NMS) and methods for automating aircraft wideband streaming L band providing dedicated high data rate communication links from an aircraft fitted with an approved L-band terminal and antenna over a satellite communication network, such as the Inmarsat Swift Broadband network. The systems and methods allow for modifying the L-band terminal wiring to inject a dedicated single channel per carrier (SCPC) signal from an external modem to achieve return data rates in the range of several Mbps over a dedicated leased satellite bandwidth.

Abstract: A maritime network provides network coverage for nautical or aerospace vehicles traveling over the sea. Generating the network configuration for the maritime network includes receiving client information for client devices in range of a given node of the maritime network for a period of time that the client devices are traveling asea, as well as location information for the period of time from a plurality of nodes in the network including the given node. Based on the client information and the location information, a network configuration is determined to include a plurality of links to be formed for routing paths through the maritime network. The routing paths are configured to transmit data related to the client devices, and the plurality of links includes a link between the given node and another node in the network that is within a maximum distance from the given node.

Abstract: A system comprises a computer having a processor and a memory, the memory storing instructions executable by the processor to identify data to be communicated to a satellite gateway via a satellite, the data including first data and second data, determine to communicate the data to the satellite gateway in a time-division multiplexing (TDM) and time-division multiple access (TDMA) (TDM/TDMA) concurrent transmission mode, and responsive to the determination to communicate the data to the satellite gateway in the TDM/TDMA concurrent transmission mode, transmit the first data to the satellite according to a TDM channel access scheme and transmit the second data to the satellite according to a TDMA channel access scheme that differs from the TDM channel access scheme.

Abstract: A satellite orbiting in one of a plurality of orbital planes of a satellite constellation system at an altitude range corresponding to low earth orbit includes at least one processor configured to generate satellite state data, and to generate a navigation signal based on the satellite state data. The satellite includes at least one transmitter configured to transmit the navigation signal for receipt by at least one client device on earth. Each of the plurality of orbital planes includes a corresponding one of a plurality of satellite subsets of a plurality of satellites of the satellite constellation system. Each of the plurality of orbital planes is within the altitude range, and the plurality of orbital planes includes a set of inclined orbital planes at a non-polar inclination.

Abstract: Methods and apparatus for for adapting one or more parameters related to a number of active beams used by a wireless device. An example method generally includes operating in a first mode that involves a first number of active beams for at least one of transmitting or receiving, and taking one or more actions to adapt one or more parameters related to a number of active beams used by the user equipment (UE) to change to a second number of active beams. Another example method generally includes communicating with a UE operating in a first mode that involves a first number of active beams for at least one of transmitting or receiving; and taking one or more actions to adapt one or more parameters related to a number of active beams used by the UE to change to a second number of active beams.

Abstract: Systems and methods for splitting cells in a network of Internet of Things (IOT) may evaluate a network metric such as receives signal strength indicator (RSSI) for end devices to determine a general network activity level. When the network metric falls below a predetermined threshold, the cell splitting controller may cause the cell to split in such a manner as to offload some portion of the end devices on an adjacent gateway and/or change frequencies to reduce the likelihood of collision. By splitting cells in this fashion, the density of end devices served by a single gateway is reduced, fewer collisions occur statistically, and the user experience may be improved.

Abstract: Improvements to publish-subscribe protocols are provided, including a method for communicating data in a network comprising publisher devices, a broker and subscriber devices, comprising one of the publisher devices: i-a. receiving a public key from the broker; i-b. determining, based on one or more attributes of data to be published to the broker, whether a sensitivity level of the data is low; and ii. following completion of both of steps i-a and i-b, publishing the data to the broker, wherein: when step i-b results in a determination that the sensitivity level of the data is low, step ii comprises transmitting the data to the broker unencrypted; and when step i-b results in a determination that the sensitivity level of the data is not low, step ii comprises encrypting the data then transmitting resulting encrypted data to the broker, wherein the step of encrypting the data uses the public key.

Abstract: It is detected of an interference of a reverse link communication in a feeder link of a communication relay apparatus, which tends to occur when the number of movable aerial-floating type communication relay apparatuses increases in the same area. A communication system comprises a plurality of movable aerial-floating type communication relay apparatuses that respectively include a relay communication station of performing a service-link radio communication with a terminal apparatus, plural gateway stations that respectively perform a feeder-link radio communication with the plurality of the communication relay apparatuses, and a common baseband processing apparatus connected to the plural gateway stations.

Abstract: Provided herein are methods and systems for generating a model, mapping a monitored space, and used for augmenting the location and paths of devices path in the monitored space, using orientation and obstruction analysis. The disclosure comprises moving a device having a camera and one or more wireless transceiver through the monitored space, exchanging signal transmissions with one or more wireless transceivers present in the monitored space, and taking images, video sequences, or other optical readings. Either the mobile wireless device, the wireless transceivers, or both may have a non-isotropic transmission and reception characteristics, due to antenna structure, occlusions, other objects with radiation impact and/or the like. The images, videos, and/or optical readings, in addition to the received signal characteristics are stored and processed to generate the model, which one or more verification units, configured to verify the location objects or devices in the monitored space, may use.

Abstract: An apparatus and method for carrier frequency estimation include a carrier frequency estimator having: a frequency input terminal disposed to receive a frequency-domain input signal comprising a plurality of symbols; a plurality of candidate pipelines, each comprising a frequency adder coupled to the frequency input terminal, a bit converter coupled to the frequency adder, a multi-bit buffer coupled to the bit converter; and a correlator coupled to the multi-bit buffer, respectively; and a candidate pipeline selector coupled to the correlators.

Abstract: A device in a population of devices arranged at a celestial body for transmitting data to a relay station orbiting the celestial body. The relay station and the population of devices are to travel with respect to one another such that the relay station is to receive signals that include the data in data packages from the population of devices. The device includes trajectory data of the relay station, a transmitter to use the trajectory data so as to transmit a signal that is part of the signals, a data processor, and a computer program which, when executing on the data processor, is to calculate a Doppler shift based upon the trajectory data, and modify the signal to thereby compensate for the Doppler shift of the signal that results from the travelling of the relay station and the population of devices with respect to one another.

Abstract: A broadband communication system provides broadband communication services onboard an aircraft. The broadband communication system includes a satellite communication transceiver, a direct air-to-ground communication (DA2GC) transceiver, and a controller. The satellite communication transceiver is configured to communicate directly with a target satellite providing a satellite communication data pathway with a satellite ground station connected to ground networks. The DA2GC transceiver is configured to communicate directly with a DA2GC ground station providing an DA2GC data pathway with the ground networks. The controller is configured to control handoff between the satellite communication transceiver and the DA2GC transceiver for data communications between the broadband communications system and the ground networks, based on performance of at least one of the satellite communication data pathway and the DA2GC data pathway.

Abstract: A method of operating a first node to generate a secret key for encrypting wireless transmissions between the first node and a second node. The method comprises receiving a first training signal comprising a plurality of subcarriers from the second node and constructing a matrix from the frequency responses of each of the plurality of subcarriers of the first training signal at the first node. A singular value decomposition of the matrix is computed; and a secret key is derived from one or more singular vectors of the singular value decomposition.

Abstract: A method and system for service management of a complex network including: computing, at a computer, a weather impact score for geographic areas within a coverage area of a satellite; predicting, based on the weather impact score for each of the geographic areas, a degradation of at least one of the satellite links serving a respective geographic area; and sending a notification about the degradation. The method may include calculating, with a computer, a peak Quality of Service (QoS) for each of the satellite links; aggregating, for a duration, transmission errors to calculate an actual QoS for each of the satellite links; and displaying a drill-down dashboard comprising a color-code for each of the satellite links, wherein the color-code corresponds to a severity of a respective discrepancy between a respective peak QoS and a respective actual QoS of a respective satellite link.

Abstract: Narrow brand IQ signals are obfuscated by embedding the signal in a buffered portion of wideband IQ frequency data. After the data has been received and buffered, the receiving transceiver, using a wideband IQ frequency data key, of a predetermined and shared format, decodes and reconstitute the narrowband IQ signal.

Abstract: Various arrangements for a satellite-based forward link overlay are presented herein. In some embodiments, broadband data is modulated at a particular frequency, phase, and/or timing to create a broadband data signal. The frequency, phase, and/or timing are used to modulate a low-bandwidth data signal. The low-bandwidth data signal can then be combined with the broadband data signal and transmitted via satellite to a geographic region. A low-bandwidth receiver unit may determine the frequency, phase, and/or timing from the embedded broadband signal and use such information to demodulate and despread the low-bandwidth data signal.

Abstract: Techniques for delivering data or information onto a vehicle and for delivering data off of a vehicle include a data distribution system having multiple interfaces that are fixedly connected to the vehicle, and that provide access to multiple types of data bearers connected to external networks. A bearer selector engine may select a particular data bearer for delivery of data based on a set of selection criteria, which may be indicated in a set of selection rules on-board the vehicle. The selection criteria may be based on bearer characteristics, data characteristics, vehicle operating state and/or other current conditions, priority, a feature or service, and/or user preference. Using one or more on-board networks, data may be generated by an on-board originating device and routed for external delivery, or external data may be delivered to an on-board destination device. Data delivery may occur while the vehicle is en route.

Abstract: Described are techniques for securing a most recent block in a data structure such as a blockchain. Techniques include configuring a data processing node that is deployable to a physical location, with a module that generates a verification signing key (VSK) pair, the VSK pair including a private VSK key that is known only to the data processing node, and a public VSK key, receiving by the data processing node, an indication of the deployment to the physical location, generating in response to the indication, by the data processing node the verification signing key (VSK) pair, and transmitting from the data processing node the public VSK key to one or more electronic devices. These techniques assure to a high degree that the generated private key remains unknown and thus can be used to secure the most recent block that is added to a data structure such as a blockchain.

Abstract: Methods and systems for dynamic wireless communication are provided. Aspects include receiving, by a first controller of a first device, a first activation signal from an activation device, responsive to receiving the first activation signal, transitioning the first device from a low power state to a high power state, broadcasting, by the first device, a second activation signal to a second controller of a second device, broadcasting, by the first device, a wireless network, wherein the first device comprises an access point for the wireless network, receiving, from the second device, a request to join the wireless network, and granting, by the first device, access to the wireless network for the second device.

Abstract: A water-repellent coating composition, and particularly, a water-repellent coating composition having improved adhesion and durability by including a phosphoric acid or a phosphoric acid-based compound, is provided.

Abstract: A disclosed method for secured multi-payload antennas operators operations comprises generating, by an antenna operations center (AOC), AOC commands using an antenna location pointing request for each of at least one antenna associated with each of at least one customer. The method further comprises transmitting, by a satellite operation center (SOC), the AOC commands and SOC commands to a vehicle via a ground antenna, where the SOC commands are related to at least one antenna associated with a host. Also, the method comprises generating customer antenna gimballing commands by using the AOC commands, and generating host antenna gimballing commands by using the SOC commands. Further, the method comprises gimballing respectively each of the antenna(s) associated with each of the customer(s) by using the customer antenna gimballing commands, and gimballing respectively each of the antenna(s) associated with the host by using the host antenna gimballing commands.

Abstract: A low-earth orbit (LEO) satellite includes a global positioning receiver configured to receive first signaling from a first plurality of non-LEO navigation satellites. An inter-satellite transceiver is configured to send and receive inter-satellite communications with other LEO navigation satellites. At least one processor is configured to execute operational instructions that cause the at least one processor to perform operations that include: determining an orbital position of the LEO satellite based on the first signaling; and generating a navigation message based on the orbital position. A navigation signal transmitter configured to broadcast the navigation message to at least one client device, the navigation message facilitating the at least one client device to determine an enhanced position of the at least one client device based on the navigation message and further based on second signaling received from a second plurality of non-LEO navigation satellites.

Abstract: Systems, methods, and apparatuses for a virtual transponder utilizing inband telemetry are disclosed. A disclosed method for a virtual transponder utilizing inband telemetry comprises receiving, by a vehicle, encrypted host commands from a host spacecraft operations center (SOC). The method further comprises receiving, by the vehicle via the host SOC, encrypted hosted commands from a hosted payload (HoP) operation center (HOC). Also, the method comprises reconfiguring a payload on the vehicle according to unencrypted host commands and/or unencrypted hosted commands. In addition, the method comprises transmitting payload data to a host receiving antenna and/or a hosted receiving antenna. In addition, the method comprises transmitting, by a host telemetry transmitter on the vehicle, encrypted host telemetry to the host SOC. Further, the method comprises transmitting, by the payload antenna, encrypted hosted telemetry to the HOC.

Abstract: A base station for communication with a terminal station having a plurality of terminal station antennas. The base station has a plurality of directional antennas, each of the plurality of directional antennas in communication with satellites in view. The base station also has a processing device (e.g., eNodeB) to transmit each of the multiple base-station antenna signals via each of the plurality of directional antennas to satellites and/or the beams of the same satellite seen by the terminal station for retransmission to the plurality of terminal station antennas.

Abstract: An ultrawideband radio transceiver/repeater provides a low cost infrastructure solution that merges wireless and wired network devices while providing connection to the plant, flexible repeater capabilities, network security, traffic monitoring and provisioning, and traffic flow control for wired and wireless connectivity of devices or networks. The ultrawideband radio transceiver/repeater can be implemented in discrete, integrated, distributed or embedded forms.

Abstract: Methods, systems, and computer readable mediums for command engine execution are disclosed. One method for command engine execution includes receiving free-form information for requesting or modifying information about a computing system. The method also includes identifying a portion in the free-form information that is unsupported by a command engine. The method further includes converting, using a grammar module that supports the portion, the free-form information into at least one compatible command for interacting with at least one data set. The method also includes requesting or modifying the information about the computing system by interacting with the at least one data set using the at least one compatible command.

Abstract: Large data transmission in digital radio broadcasting system and method are disclosed. A first channel information of tuned frequency indicates the availability of the data distribution table. Second channel information contains the data distribution info table (list of frequencies mapped to data chunk identifiers). Data chunks have a unique id. Digital broadcast radio receiver receives data distribution tables and parses through the currently tuned frequencies data distribution table. The receiver has information on how to collect the distributed data. Receiver uses its primary tuner to receive the data chunks in the current tuned frequency. Rest of the data chunks are collected by the background tuners in a parallel fashion by tuning to required frequencies. Once all chunks are collected, data file is reconstructed and available for presentation to the user.

Abstract: Systems and methods are provided for scheduling objects having pair-wise and cumulative constraints. The systems and methods presented can utilize a directed acyclic graph to increase or maximize a utilization function. The objects can comprise satellites in a constellation of satellites. In some implementations, the satellites are imaging satellites, and the systems and methods for scheduling can use human collaboration to determine events of interest for acquisition of images. In some implementations, dominant edges are removed from the directed acyclic graph. In some implementations, dynamic weights are assigned to nodes associated with downlink events in the directed acyclic graph.

Abstract: A communication system transmits a data signal between a transmitter and a receiver. A service provider operates the communication system for a client. When the data signal is received at the receiver, the data signal is decoded and the service provider decides whether the decoded data signal is accurate or whether the decoded data signal should be rejected. The service provider transmits the decoded data signal and its determination as to its accuracy to the client. Metadata including information about the transmission of the data signal is also provided to the client so that the client can make its own determination regarding whether to accept or reject the decoded data signal.

Abstract: A system for providing air traffic control within a geographic sector to which a communication frequency in the VHF or UHF range is assigned comprises at least one satellite (configured for a communication with an aircraft in the geographic sector using an analog modulated RFF signal at the communication frequency. The system is configured in such a way that at each time, only one satellite is actively transmitting on the communication frequency assigned to the geographic sector.

Abstract: There is provided methods and apparatuses for enabling satellite communication across an orbital seam thereby at least in part improving network latency. According to embodiments, methods and apparatuses are provided to improve network connectivity of satellite networks, where satellite mobility together with long signal acquisition times reduce reliable communication across an orbital seam in a satellite network. According to embodiments, the methods and apparatuses apply to non-terrestrial, for example satellite, polar constellation networks configured to provide global communications services, wherein these communications services may not be supported by terrestrial networks, for example wire-based or fibre-based networks.

Abstract: A control station device includes a wireless machine having an interference determination unit that uses one or multiple methods for a received signal to determine in real time whether interference has occurred, a multi-wave simultaneous reception start determination unit that causes received interfering waveform information to be held in a memory and determines whether a plurality of signals have been simultaneously terminated, and an alarm display unit that issues a first alarm indicating an interference state and a second alarm indicating termination of simultaneous transmission based on information from the interference determination unit and information from the multi-wave simultaneous reception start determination unit.

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment may receive a physical downlink control channel (PDCCH) based at least in part on a PDCCH configuration. The user equipment may determine a minimum scheduling delay based at least in part on the PDCCH configuration associated with receiving the PDCCH. The user equipment may operate in a partial sleep-state based at least in part on the minimum scheduling delay. Numerous other aspects are provided.

Abstract: A wireless communication platform utilizes flexible bandwidth assignment to re-allocate bandwidth between spot beams. The platform may assign a first combination of frequency and polarization (FP) to a first spot beam and a second combination of frequency and polarization to a second spot beam that is adjacent and at least partially overlapping the first spot beam. The platform may assign to the first spot beam a reserved combination of frequency and polarization during a first time period, and at second time, assign the reserved combination to the second spot beam. The platform may also assign the reserved combination simultaneously to adjacent spot beams by managing user of the reserved combination by geographically isolated terminals in the spot beams. The platform may further assign different portions of the reserved combination to adjacent spot beams without geographical limitations.

Abstract: The present technology relates to an intelligent road infrastructure system and, more particularly, to systems and methods for a heterogeneous connected automated vehicle highway (CAVH) network in which the road network has various RSU and TCU/TCC coverages and functionalities. The heterogeneous CAVH network facilitates control and operations for vehicles of various automation level and other road users by implementing various levels of coordinated control among CAVH system entities and providing individual road users with detailed customized information and time-sensitive control instructions, and operations and maintenance services.

Abstract: Various arrangements for adaptive modulation of terminal to satellite communications are presented herein. A terminal may access a feedback data structure to perform a lookup based on a power level received as feedback. Based on performing the lookup using the power level in the feedback data structure, the terminal may determine an error correcting code rate to be used. The terminal may transmit one or more data packets to the satellite using the determined error correcting code rate without changing communication channel or requesting permission via the satellite to change the error correcting code rate.

Abstract: Various arrangements for compensating for Doppler shift on a non-terrestrial orthogonal frequency division multiplex (OFDM) network are presented. A received frequency of a downlink satellite message received from a satellite may be determined. A downlink frequency delta between an expected frequency of the downlink satellite message and the received frequency of the downlink satellite message can be calculated. An uplink frequency delta based on the calculated downlink frequency delta may be calculated. An uplink transmission frequency at which an uplink OFDM symbol is transmitted may be calculated based on the calculated uplink frequency delta.

Abstract: A method provides packet transmission of data between two terminal devices via at least one flying object. The flying objects are moving within a given swarm of flying objects and the flying objects are disposed in a grid being characterized by a number of flight paths. One flying object from the swarm of the flying objects is determined to be a reference flying object and each of the flying objects is assigned a position. Coordinate values of a receiving flying object within the swarm of the flying objects is derived from a respective data packet being transmitted. A number of sequential single transmissions for a transmittal of data between a transmitting flying object and the receiving flying object is performed. Each single transmission within the swarm of the flying objects occurs only between two respective flying objects which are topologically neighboring and in direct communication with each other.

Abstract: A data broadcast method includes obtaining, by a satellite base station, a plurality of pieces of data that are to be broadcast. The plurality of pieces of data are a same type of data including compensation values of Doppler frequency shifts, change rates of Doppler frequency shifts, transmission delays, change rates of transmission delays, timing advances TAs, change rates of TAs, or angles of a plurality of beams that respectively correspond to a plurality of beams generated by the satellite base station. The satellite base station determines reference data and a difference between each piece of data in the plurality of pieces of data and the reference data. The satellite base station sends first indication information and a plurality of pieces of second indication information to a terminal device. The first indication information indicates the reference data.

Abstract: Determining alignment and clear line-of-sight (LOS) of a satellite antenna using sensor data from an LOS sensor of the satellite antenna. Described techniques include storing first sensor data captured by the LOS sensor at a first time, the first sensor data indicating a first LOS condition of the satellite antenna corresponding to the satellite antenna having a beam LOS with a satellite of the satellite communication system that is aligned and unobstructed. The techniques may include receiving second sensor data captured by the LOS sensor at a second time after the first time, the second sensor data indicating a second LOS condition of the satellite antenna. The techniques may include determining an LOS condition change for the satellite antenna between the first time and the second time based on a comparison of the second sensor data with the first sensor data.

Abstract: A system and method for managing a terminal uplink power, and a terminal having uplink power managed by a gateway are provided. The method including: dividing, at a gateway, a beam coverage area into sub-beams and each of the sub-beams into one or more frequency bins; associating a sub-beam of the sub-beams with terminals located within the sub-beam; determining Transmit Power (TP) values including a transmit power or attenuation for each of the one or more frequency bins of the sub-beam; sending, from the gateway, the TP values of the sub-beam to the terminals via a forward link; and receiving, at the gateway, a burst transmitted using a terminal transmit power calculated from the TP values of the sub-beam. The TP values may change in response to an SNR measurement at the gateway and/or feedback from the terminal.

Abstract: A constellation of many satellites are actively maneuvered to maintain specified non-geosynchronous reference orbits. Each satellite is assigned a slot within a particular reference orbit. For each reference orbit, a set of orbital parameters including eccentricity and argument of perigee for frozen orbits are selected that are unique relative to other reference orbits in use. One characteristic of a frozen orbit is that at a given point in the orbit, altitude is relatively constant. At points where orbital planes of the reference orbits intersect, the differing sets of orbital parameters assure a vertical separation between satellites in different orbital planes is maintained without the need for evasive maneuvers. Actual orbital motion data is obtained from sensors onboard each satellite. The desired orbital parameters are maintained based on the actual orbital motion data as part of scheduled maneuvers to maintain the reference orbit assigned to that satellite.

Abstract: Communication systems and methods for routing data selecting via unicast paths and multicast path are disclosed. An example communication system includes: a satellite; a satellite modem configured to operate within a movable vehicle, wherein the satellite modem is configured to communicatively couple with the satellite, and wherein the satellite modem is configured to convey data, received from the satellite over a forward link (FL), to a user device within the vehicle; and a satellite ground station having a multicast server, wherein the multicast server is configured to select one of a unicast mode or a multicast mode for the FL based upon a measured receive signal-to-noise ratio (SNR) associated with the satellite modem, wherein the satellite communicates with the satellite modem over the FL in the selected one of the unicast mode or the multicast mode.

Abstract: Apparatuses, methods, and systems are disclosed for uplink power control. One method includes: receiving a message that configures a set of resources that each includes a downlink resource or an uplink sounding resource and is associated with an uplink transmission beam pattern; receiving scheduling information for an uplink transmission that is associated with a resource of the set of resources; determining an uplink transmission beam pattern associated with the resource; determining a configured maximum output power for the uplink transmission beam pattern that is based on an antenna array property associated with the uplink transmission beam pattern; determining a transmit power for the uplink transmission based on the configured maximum output power; and performing the uplink transmission using the uplink transmission beam pattern based on the transmit power.

Abstract: This application provides a communication method that includes grouping a plurality of clients to obtain at least two device groups, where each of the at least two device groups includes at least two clients. The method further includes receiving a publish request sent by a first client, where the publish request includes first data that corresponds to a first topic. The publish request is used to request a message queue telemetry transport (MQTT) server to publish the first data. After it is determined that a first device group to which the first client belongs from the at least two device groups, a publish message that includes the first data is sent to a second client in the first device group.

Abstract: Systems and methods for correcting beam weighting factors for a radio system include obtaining measurements of cross-polarization transfer functions between respective pairs of dual-polarized antenna elements in the antenna system and computing coupling values for the respective pairs and reflection coefficient values by numerically solving a system of equations in which a subset of the coupling values are set to zero and the measurements of the cross-polarization transfer functions of the respective pairs are a function of the coupling values for the respective pairs of the dual-polarized antenna elements and the reflection coefficient values. Correction factors are computed for the antenna elements based on the computed coupling values and reflection coefficients. Based on the respective correction factors, beam weighting factors are calculated for at least some of the antenna elements for a desired beam direction.

Abstract: A wireless device comprises a transceiving circuit, configured to receive a plurality of beam performance parameters corresponding to a plurality beams; a storage circuit, configured to store a table, wherein corresponding relationships between the plurality beams and the plurality of beam performance parameters are tabulated in the table; and a processing circuit, configured to perform the following steps: selecting a first beam according to the table; determining whether a first beam performance value corresponding to the first beam is less than a threshold; and selecting a second beam according to the table when the first beam performance value is less than the threshold.

Abstract: System and method for forecasting availability of network services during flight is provided. The system of the disclosed invention utilizes flight plans and coverage data to provide users aboard aircraft with status of satellite Internet services. The system couples the flight plans with the coverage data to provide information regarding how the flight path of the aircraft will affect availability of Internet services during the flight. The method includes retrieving a flight plan to generate a flight path having one or more waypoints, transmitting one or more service coverage data from service providers, coupling the flight path with the service coverage data to determine portions of the flight path in which the network service is unavailable, and delivering to the users information about the service unavailable portions of the flight path.