Patent classifications
H04B7/18586
Access Node Farm for End-to-End Beamforming
Methods and systems are described for providing end-to-end beamforming. For example, end-to-end beamforming systems include end-to-end relays and ground networks to provide communications to user terminals located in user beam coverage areas. The ground segment can include geographically distributed access nodes and a central processing system. Return uplink signals, transmitted from the user terminals, have multipath induced by a plurality of receive/transmit signal paths in the end to end relay and are relayed to the ground network. The ground network, using beamformers, recovers user data streams transmitted by the user terminals from return downlink signals. The ground network, using beamformers generates forward uplink signals from appropriately weighted combinations of user data streams that, after relay by the end-end-end relay, produce forward downlink signals that combine to form user beams.
CYCLICAL OBSTRUCTION COMMUNICATION SYSTEM
Techniques for improving data rates at mobile terminals that are subject to periodic channel interruptions in a beyond-line-of-sight communication system are disclosed, including improved encoding and decoding systems that identify blockages and modify receiver operation during blockages to reduce data errors. In certain embodiments, encoding, symbol mapping, interleaving, and use of unique periodic identifiers function to enable a series of packets that may be received in a blockage impaired channel with reduced errors.
SATELLITE COMMUNICATION TRANSMITTER
An earth station transmitter device is arranged for generating a set of data to be transmitted to an earth station receiver device of a satellite communication system. The earth station transmitter device comprises: encoding and modulation means for mapping a plurality of baseband frames; physical layer framing means arranged for inserting in front of each frame of encoded and modulated symbols; converter means for converting a super-frame preamble; super-frame generator means arranged to prepend a first subset of capacity units corresponding to the super-frame preamble to a second subset of capacity units of the plurality corresponding to the plurality of physical layer frames.
Method of aggregating representational state transfer response fields
A system and method for aggregating representational state transfer (REST) API response fields, the method including receiving, via a satellite link, a schema including field definitions, where each of the field definitions includes an endpoint and a field. The method also includes retrieving, for each of the field definitions, the respective field from a result of invoking the respective endpoint; and aggregating a package including each retrieved field. The schema and the package may conform to a JavaScript Object Notation (JSON) schema format.
Satellite for end to end beamforming
Methods and systems are described for providing end-to-end beamforming. For example, end-to-end beamforming systems include end-to-end relays and ground networks to provide communications to user terminals located in user beam coverage areas. The ground segment can include geographically distributed access nodes and a central processing system. Return uplink signals, transmitted from the user terminals, have multipath induced by a plurality of receive/transmit signal paths in the end to end relay and are relayed to the ground network. The ground network, using beamformers, recovers user data streams transmitted by the user terminals from return downlink signals. The ground network, using beamformers generates forward uplink signals from appropriately weighted combinations of user data streams that, after relay by the end-end-end relay, produce forward downlink signals that combine to form user beams.
Cyclical obstruction communication system
Techniques for improving data rates at mobile terminals that are subject to periodic channel interruptions in a beyond-line-of-sight communication system are disclosed, including improved encoding and decoding systems that identify blockages and modify receiver operation during blockages to reduce data errors. In certain embodiments, encoding, symbol mapping, interleaving, and use of unique periodic identifiers function to enable a series of packets that may be received in a blockage impaired channel with reduced errors.
Return path congestion mitigation for satellite communications
In one embodiment, a communicating device (e.g., either a ground station server or a particular distributed module of a satellite communication system) mitigates congestion on a particular return communication path via an intermediate satellite from the plurality of distributed modules to the ground station server. In particular, in response to determining that the level of congestion is above a threshold, then the communication device mitigates the congestion by, e.g., one or both of either a) determining an uncongested return communication path from a particular distributed module to the ground station server, ensuring that the uncongested return communication path would not interfere with any unintended receiver, and then causing the particular distributed module to use the uncongested return communication path, and b) enforcing one or more communication restrictions on a utilized return communication path to reduce the effect of a communication on the overall congestion of the utilized return communication path.
HUB COMMUNICATION WITH A SATELLITE NETWORK OR A TERRESTRIAL NETWORK
Apparatuses, methods, and systems of hub communication with a satellite network or a terrestrial network are disclosed. One method includes detecting presence of the satellite network, detecting, by the hub, presence of a terrestrial network, selecting to connect to one of the satellite network or the terrestrial network based on a priority ruleset, estimating a propagation delay between the hub and a base station of the satellite network when the satellite network is selected, adjusting a timing offset between transmit and receive radio frames at the hub based on whether the satellite network or the terrestrial network is selected, and based at least on the propagation delay and a fixed frame offset between uplink and downlink frames at base station, and communicating with the base station of the satellite network or a base station of the terrestrial network.
OPTIMIZING DATA CAP LIMITED SERVICE PLANS
An apparatus and method for optimizing selection of data cap limited service plans. A model is created in order to predict bandwidth usage by existing subscribers in a satellite communication system. The model is trained with usage data for all subscribers of the satellite communication system over a predetermined time interval, and used to analyze usage patterns of each subscriber. Bandwidth usage is predicted for each subscriber relative to an existing service plan based, at least one recommendation is generated for optimizing use of bandwidth in the satellite communication system based on the analysis and predicted bandwidth usage.
Satellite communications networking
A method of operating a satellite communication network is disclosed. The network includes a plurality of satellites interconnected by a plurality of satellite-to-satellite communication links. Each of the plurality of satellites is configured to communicate with at least one ground station using respective ground-satellite communication links. The method includes transmitting a routing table to each of the satellites. Each routing table has a list of destination satellites, and defines at least two possible routes leading to it. An alert message identifying a problem communication link is transmitted to a subset of the plurality of satellites. In response to receiving the alert message, subsequent data packets are routed through the communication network by the satellites using their respective routing table to avoid the problem communication link.