A Satellite Auto Alignment and Commissioning System and Method for Automated Antenna terminals (ATT) is disclosed. The method includes receiving Multicast information at a satellite modem from a server, sending the Multicast information to an API, transmitting a Clean carrier Wave (CW) from the satellite modem to the server in a frequency fixed by the Multicast information having a power at the satellite modem, measuring the SNR, the Copol, Cross-pol and ASI parameters and thresholds, stopping the transmission of the CW, comparing the measured parameters with thresholds, if at least one parameter does not meet its respective threshold, the API modifies that parameter at the AAT controlled by an antenna control unit, repeating previous steps until all parameters meet their respective thresholds in which the AAT is correctly aligned and polarized; and, calculating a saturation point at which the power of the satellite modem is maximum without distortion.

A method of generating interleaved symbols in a multiplexed data steam for a satellite broadcasting application to a plurality of receivers, includes allocating a plurality of data programs to a plurality of primary multiplexers according to a load balancing scheme; encoding in each primary multiplexer a plurality of data programs according to a coding scheme at a predefined code rate for generating encoded frames; and generating super frames in each primary multiplexer.

A control station includes: a location managing unit that calculates communicable times for combinations of a satellite station and an earth station that can perform communication with each other, based on a location of a satellite station and locations of earth stations serving as candidates to which the satellite station transmits the data; a data managing unit that holds information on a retention state of the data in the satellite having generated the data; and a transmission predicting unit that calculates data transmission completion times for one or more transmission paths from the satellite station to the earth station, based on the communicable times and the information on a retention state of the data, and generates control information for satellite stations and the earth station in a transmission path determined based on the data transmission completion times, to transmit the data in the determined transmission path.

Within a satellite communications system, a base station communicates with standard compliant user equipment (UE) via a satellite having a field of view. The base station has a processor that instructs the satellite to generate a wide beam signal covering a plurality of cells in the field of view, and detects an access request from a user equipment within the plurality of cells over the wide beam signal. The base station, comprising a processing device such as an eNodeB, then generates one or more network broadcast/access signals that is uplink to a satellite and broadcasted via one or more nominal beams generated by the satellite, covering all the inactive cells, one of the plurality of cells having the access request.

Various arrangements for spectrum sharing among a terrestrial network and a non-terrestrial network are presented herein. A first bandwidth part having a first frequency range for may be assigned use for communication between one or more UE of a plurality of UE and a terrestrial cellular network when a high signal strength is present. A second bandwidth part having a second frequency range may be assigned for use for communication between one or more UE of the plurality of UE and the terrestrial cellular network when a low signal strength is present. A third bandwidth part having a third frequency range can be assigned for use for communication between one or more UE of the plurality of UE and a non-terrestrial network. The third bandwidth part can overlap with the first bandwidth part but not the second bandwidth part.

Aspects of wireless communication are described, including a radiofrequency (RF) amplifier chip, configured for transmitting or receiving data, comprising a first substrate comprising a first material and a second substrate comprising a second material that is different from the first material. The first substrate and the second substrate may be lattice-matched such that an interface region between the first substrate and the second substrate exhibits an sp3 carbon peak at about 1332 cm.Math..sup.1 having a full width half maximum of no more than 5.0 cm.Math..sup.1 as measured by Raman spectroscopy. In some aspects, the first substrate and said second substrate permit said chip to transmit or receive data at a transfer rate of at least 500 megabits per second and a frequency of at least 8 GHz. In some aspects, the RF amplifier chip is part of a satellite transmitter.

The present disclosure relates to a system for providing an anonymous and obfuscated communication over a virtual, modular and distributed satellite communication network.

A method for estimating the position of a terminal in a satellite communication at either the ground station or in the satellite is described. The method uses estimates of the time delay, Doppler and/or Doppler Rate of signals transmitted from the terminal to the satellite together with an estimate of the satellite position. The method can be used with both synchronised terminals and unsynchronised terminals provided they have a stable time or frequency reference as well as with low earth orbit satellites both with and without on-board global position and timing references. Additionally the method can also use estimates of the time delay, Doppler or Doppler rate of beacon signals received by either the satellite or terminals. These beacon signals may include GPS L1 signals. In contrast to standard GPS receivers, the method does not require the terminal to store GPS ephemeris data or to operate continuously.

An orbiting multiple access transceiver communicates with terrestrial mobile stations which are also capable of communicating with terrestrial base stations. The multiple access transceiver is configured to sample a signal when a terrestrial mobile station of interest is not transmitting to produce a sample signal. The sample signal may be processed to produce an out-of-phase signal that may be applied to a signal when the terrestrial mobile station of interest is transmitting to produce a clearer signal from the terrestrial mobile station of interest.

Methods, systems, and devices for wireless communications are described and may include a user terminal and a satellite establishing a communication link over a channel having a channel delay and a medium access control-control element (MAC-CE) delay being determined based on the channel delay. The user terminal and the satellite may be within a non-terrestrial network (NTN). The user terminal may receive a MAC-CE command that indicates a communication parameter to be implemented or adjusted. The user terminal may transmit feedback, for example, to the satellite in response to the MAC-CE command, and the user terminal and the satellite may communicate according to the communication parameter in the MAC-CE command after an end of the MAC-CE delay.