H04B7/18582

Quad band relay Common Data Link system and method
10998985 · 2021-05-04 ·

A method of increasing reliability of a wireless radio includes: creating a first waveform at a first center frequency of an encoded data stream using a first wireless radio; creating a second waveform at a second center frequency of the encoded data stream using the first wireless radio; combining the first waveform and the second waveform into a composite waveform with redundant data streams at different center frequencies using the first wireless radio; wirelessly transmitting the composite waveform using the first wireless radio; wirelessly receiving the composite waveform; filtering the received composite waveform using a first filter band; digitizing the received composite waveform using the second wireless radio; demodulating the digitized composite waveform into a first data stream and a second data stream with the second wireless radio; and creating a third data stream representative of the encoded data stream.

SYSTEM AND METHOD FOR CONFIGURING A COMMUNICATIONS DEVICE FOR SPACE-TERRESTRIAL COMMUNICATIONS
20210126704 · 2021-04-29 · ·

The present teachings is generally directed to facilitating satellite and terrestrial internet communications. In some embodiments, configuration information for configuring a communications device may be retrieved. The configuration information may be provided to the communications device, and the communications device may be caused to be configured based on the configuration information. Responsive to receiving a first data signal from a first satellite, the communications device may be configured to generate and output a second data signal based on the first data signal, the first data signal including first data encoded using one or more space-based communication protocols, and the second data including second data encoded using one or more terrestrial-based communication protocols.

Layer-2 connectivity from switch to access node/gateway
10965365 · 2021-03-30 · ·

Methods, systems, and apparatuses for providing layer-2 connectivity through a non-routed ground segment network, are described. A system includes a non-autonomous gateway in communication with a satellite configured to relay data packets. The non-autonomous gateway is configured to receive the data packets from the satellite at layer-1 (L1) of the OSI-model, generate a plurality of virtual tagging tuples within the layer-2 packet headers of the plurality of data packets. The non-autonomous gateway is further configured to transmit, at layer-2 (L2) of the OSI-model, the virtually tagged data packets. Each of the packets may include a virtual tagging tuple and an entity destination. The system further includes a L2 switch in communication with the non-autonomous gateway. The L2 switch may be configured to receive the data packets and transmit the data packets to the entity based on the virtual tuples associated with each of the data packets.

Data flow control for dual ended transmission control protocol performance enhancement proxies

Systems, methods, and servers for controlling data flow across a computer network having a first performance enhancing proxy device (PEP1) between a client-facing segment of the network and a second PEP device (PEP2) on a server-facing segment of the network. PEP2 has a receiver for receiving flow control information from across a control channel between PEP1 and PEP2, for each TCP connection on the client-facing segment. The information includes round-trip packet latency (Li) on the client-facing segment and transmit buffer congestion information of PEP1. PEP2 has a determiner for determining if a TCP connection has a congested packet flow; and a congestion reliever for relieving such congestion by synchronizing a receive buffer of the PEP2 to be the same size as a transmit buffer congestion window of the PEP1; and delaying acknowledgments (ACKs) at PEP2 by a time Tack based on a preset threshold level Tlim or Li.

Beam management in directional beam networks

High frequency wireless communication networks rely on directional transmit and receive beams to achieve large gains and overcome large pathlosses associated with high frequency signals. With highly directional signals, link failure may occur. Network nodes associated with the link failure, may need to identify new beam pairs and establish a new link as quickly as possible. In several aspects, beam sweep procedures are expedited, allowing for rapid link reestablishment. Disclosed techniques allow for rapid link reestablishment with and without beam correspondence.

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.

METHOD FOR DATA TRANSMISSION FROM A SPACECRAFT TO GROUND VIA A FREE SPACE OPTICAL CHANNEL
20230421251 · 2023-12-28 ·

The method for file transmission from a spacecraft to ground via a Free Space Optical channel comprises the use of the Consultative Committee for Space Data Systems (CCSDS) standard with assigning a File ID in the Secondary Header and dividing the transmission of the file into several fractions. The type of fraction, namely Start Transfer Frame, Intermediate Transfer Frame, or End Transfer Frame is identified in the Secondary Header. Also, the File ID, File length, and Name of the file is included in the Secondary Header of the Start Transfer Frame while information about the File ID is included also in the other two types Transfer Frames.

Systems and methods for transmitting data via a satellite network

Systems and methods for transmitting data using a satellite communication network are disclosed herein. In an embodiment, a satellite communication network includes a first terminal, a second terminal, and a base station. The first terminal is configured to collect first target data. The second terminal is configured to receive a first data packet including the first target data from the first terminal via a local connection. The base station is in communication with the first terminal and the second terminal via at least one satellite. The base station is configured to: (i) receive copies of the first data packet from each of the first and second terminals via the at least one satellite; (ii) process a first copy of the first data packet; and (iii) delete a second copy of the first data packet.

System and method for efficient and scalable VSAT real-time monitoring (VRTM)

A method and system for real-time monitoring of terminals in a satellite communication system is disclosed. The method includes creating a configuration profile specifying a reporting format for one or more object status, and transmitting the configuration profile to a terminal. The terminal subsequently generates a report containing the requested object status based on the configuration profile. The report is provided to a gateway responsible for managing the terminal using available space within existing traffic. The gateway subsequently forwards report to at least one destination entity.

System and method for digital direction finding
10873404 · 2020-12-22 ·

A method for finding an orthogonal direction of a radiation source with respect a digitally optimized interference pattern of a first fixed electromagnetic element and a second fixed electromagnetic element has been established. Determining a direction of a radiation source allows for dynamic control of moving object.