A satellite communication system and method are presented for operation in one or more frequency bands to simultaneously relay data signals between a plurality of remote terminals and one or more ground stations (gateways) in both return and forward links. This allows the remote terminal to be of a few centimeters in size. The satellite communication system comprises a processor configured and operable to receive from each of the remote terminals an uplink return signal in the form of a plurality of terminal return signals spread over a predetermined first frequency allocation in said one or more frequency bands according to a predetermined spread function, de-spread the received plurality of terminal return signals, and generate a downlink return signal, corresponding to at least some of the received plurality of spread terminal return signals and having a predetermined second frequency allocation, to be sent to one of the ground stations.

A method and system for sharing frequency spectrum with multiple networks includes selecting a first geographical coverage area served by a first base station associated with a first network. The first base station is configured to utilize a predetermined frequency spectrum. A second base station, associated with a different network, that is operating within the first geographical coverage area is identified. Frequency resources from the predetermined are subsequently allocated to the second base station.

A system includes a satellite communications gateway including a first receiver. The first receiver is programmed to receive a first signal including a time-division multiplexed (TDM) return and a time-division multiple access (TDMA) return overlapped in an allocated frequency range. The receiver is further programmed to recover the time-division multiplexed return from the first signal; and output the time-division multiplexed return.

Methods, systems, and devices for wireless communications are described. In some non-terrestrial networks, the movement of satellites may result in the movement of cell coverage. A user equipment (UE) may experience changing cell coverage due to the movement of cell coverage, even if the UE is stationary. A UE may be configured to determine a cell is serving two or more earth-fixed tracking areas, determine whether to monitor paging resources of a first earth-fixed tracking area or a second earth-fixed tracking area, and monitor the selected paging resources. In some aspects, the UE may determine that a cell serves two or more earth-fixed tracking areas based on a received control message including multiple tracking area indicators. In some aspects, the UE may determine which paging resources to monitor based on a geographic position of the UE.

A satellite communication system and method are presented for operation in one or more frequency bands to simultaneously relay data signals between a plurality of remote terminals and one or more ground stations (gateways) in both return and forward links. This allows the remote terminal to be of a few centimeters in size. The satellite communication system comprises a processor configured and operable to receive from each of the remote terminals an uplink return signal in the form of a plurality of terminal return signals spread over a predetermined first frequency allocation in said one or more frequency bands according to a predetermined spread function, de-spread the received plurality of terminal return signals, and generate a downlink return signal, corresponding to at least some of the received plurality of spread terminal return signals and having a predetermined second frequency allocation, to be sent to one of the ground stations.

A cellular system and method to provide voice and data services to a user terminal are disclosed. The cellular system includes a cellular base station; a satellite backhaul including a first satellite link and a second satellite link; and a traffic classifier to classify traffic from the cellular base station as voice traffic for transportation via the first satellite link and as data traffic for transportation via the second satellite link.

Systems and methods for controlling satellites are provided. In one example embodiment, a computing system can obtain a request for image data. The request can be associated with a priority for acquiring the image data. The computing system can determine an availability of a plurality of satellites to acquire the image data based at least in part on the request. The computing system can select from among a plurality of communication pathways to transmit an image acquisition command to a satellite based at least in part on the request priority. The plurality of communication pathways can include a communication pathway via which the image acquisition command is indirectly communicated to the satellite via a geostationary satellite. The computing system can send the image acquisition command to the selected satellite via the selected communication pathway.

A multi-tenant system is provided for coordinating spectrum allocation of a plurality of high-altitude networks (HANs) so that at least one high-altitude platform (HAP) in one of the plurality of HANs is controlled to avoid interfering with a HAP in at least one other HAN of the plurality of HANs. The multi-tenant system comprises a database including: 1) a first interface, 2) a second interface, 3) at least one service module, and 4) a data storage device. The multi-tenant system further comprises a communication controller coupled to the database, the communication controller configured to control various characteristics of HAPs in their respective HANs and links therebetween based on data maintained in the data storage device of the database. The data includes regulatory and coordination constraints provided via the first interface and non-regulatory and external coordination information provided via the second interface.

Various arrangements for increasing a transfer rate of a data transfer via satellite are presented. A satellite gateway may set an accelerated set of communication parameters that control communication between the satellite gateway and the satellite terminal via the satellite and between the satellite gateway and the content source to an accelerated transfer rate between the content source and the satellite terminal. A first set of data may be transferred from the content source to the satellite terminal using the set of communication parameters. After transferring the first set of data, the satellite gateway may adjust the initial set of communication parameters to an adjusted set of communication parameters. The adjusted transfer rate can be lower than the accelerated transfer rate.

A system includes a satellite communications gateway including a first receiver. The first receiver is programmed to receive a first signal including a time-division multiplexed (TDM) return and a time-division multiple access (TDMA) return overlapped in an allocated frequency range. The receiver is further programmed to recover the time-division multiplexed return from the first signal; and output the time-division multiplexed return.