Techniques are described for supporting satellite wireless access for a user equipment (UE) using fixed tracking areas (TAs). TA identities (TAIs) are broadcast in a satellite radio cell by a base station indicating which TAs are covered by the radio cell. A UE can access a radio cell if at least one broadcast TAI is not forbidden for the UE. A base station provides the TAIs broadcast in a radio cell and a TAI for a TA in which a UE is located to a core network node to support access by the UE. The core network node uses the broadcast TAIs to decide whether UE access is allowed and uses the broadcast TAIs and the TAI to assign a UE registration area. The UE may transfer all the broadcast TAIs to a forbidden TAI list if UE access is rejected by the core network node.

Systems and methods are provided for increasing or decreasing the transmission speed of a VSAT used in a satellite network. A VSAT may include an ASIC and an FPGA in a transmission block of the VSAT. The ASIC includes an ASIC transmit modulator configured to modulate an input information signal, and circuitry for bypassing at least a portion of the ASIC transmit modulator. The FPGA includes circuitry for receiving a signal bypassing at least a portion of the ASIC transmit modulator, and an FPGA transmit modulator configured to modulate the bypassed signal. In implementations, the system uses the ASIC to burst format an input information signal with a payload burst segment; bypasses a transmit modulator of the ASIC after burst formatting the input information signal with the ASIC; and uses an FPGA to insert additional burst segments into the ASIC burst-formatted signal.

A system and method for managing a transmit power of a terminal includes dividing a spectrum into frequency bins and an inroute layout including inroutes; mapping at least one of the frequency bins with each of the inroute; determining a respective normalized Transmit Power (TP) for each of the frequency bins; calculating a transmission TP based on the respective normalized TP of one or more of the frequency bins mapped to a selected inroute; and transmitting a radio signal with the transmission TP on the selected inroute. A first frequency bin is adjacent a second frequency bin, a respective normalized TP of the first frequency bin compared to a respective normalized TP of the second frequency bin varies no more than a threshold power delta, a count of frequency bins is greater than one and unequal to a count of the inroute layout.

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 method for satellite communication over non-geosynchronous orbit (NGSO) satellites, using a terminal having a non-tracking antenna, is presented. The terminal may communicate with an NGSO satellite each time the NGSO satellite passes through the terminal's antenna beam (communication opportunity). Though the communication opportunities are short and may reoccur at relatively long intervals (e.g., minutes to tens of minutes), these communication opportunities may be sufficient for transmitting the volumes of information generated by Internet of Things (IoT) applications during the intervals between communication opportunities.

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 and method of improving resource switching efficiency by using polarization capabilities of beams within a network. The system and method include receiving, by a wireless communication device from a base station, polarization information. The system and method include respectively reporting, by the wireless communication device to the base station, polarization capabilities of the wireless communication device.

A satellite communication method and a network device are disclosed. A first network device learns of traffics of a plurality of satellite communications link or air interface resources allocated to a plurality of satellite base stations. The first network device sends identification information to a second network device, where the identification information indicates that a traffic of a satellite communications link reaches a specified threshold, or that an air interface resource allocated by a ground station to a satellite base station reaches a specified threshold. The second network device receives an identifier message, determines a to-be-linked satellite base station that has an idle resource, and sends, to the to-be-linked satellite base station, a second message including information about a generated beam of the to-be-linked satellite base station.

A method and system for determining inroute frame timing for a Very Small Aperture Terminal (VSAT) includes receiving an appointment to transmit, on an inroute, at a start of a slot X of a frame number M; establishing, at a VSAT, an arrival time of a super frame numbering packet (SFNP) including a satellite ephemeris vector and a frame number N; calculating, at the VSAT, a timing offset (T.sub.RO) to be applied to the arrival time to compensate for a time varying gateway-satellite-terminal propagation delay (T.sub.HS+T.sub.SR); setting a transmit instant as an end of the T.sub.RO after the arrival time; adding to the transmit instant a duration of X slots and a duration of (M-N) frames; and transmitting a burst, on the inroute from the VSAT, at the transmit instant. In the method, the calculating is based on computing T.sub.HS+T.sub.SR from the satellite ephemeris vector, a gateway transmits the SFNP and receives the burst in the slot X within the frame number M of the inroute, and N is greater than or equal to M. A method and system for using ephemeris data for inroute timing is disclosed.

Systems and methods are provided for enhanced ship-based network connectivity using a content delivery network (CDN) edge server. An example method includes receiving user requests from user devices in wireless communication with a system, with the user requests being associated with applications executing on the user devices. An operating status associated with a satellite communication system is determined, the operation status being indicative of the satellite communication system having bandwidth and/or connectivity to route the user requests via a satellite network. Based on the operating status being negative, a first subset of the user requests is queued for transmission. A second subset of the user requests are responded to using an edge cache. Based on the operating status being positive, the user requests are transmitted via the satellite network to a shore-based system, the shore-based system routing the user requests to web applications associated with different functionality.