A disclosed method for a virtual transponder comprises generating a configuration for a portion of a payload on a vehicle utilized by a host user by using an option for each variable(s) for a portion of the payload utilized by the host user. The method further comprises generating a configuration for a portion of the payload utilized by a hosted user by using an option for each variable(s) for a portion of the payload utilized by the hosted user. Also, the method comprises generating host commands for reconfiguring the portion of the payload utilized by the host user by using the configuration for the portion of the payload utilized by the host user. Further, the method comprises generating hosted commands for reconfiguring the portion of the payload utilized by the hosted user by using the configuration for the portion of the payload utilized by the hosted user.

A link system (100) for a spacecraft (10) comprises control and communication circuitry and is configured to communicate with subsystems (12) in the spacecraft (10) independent of an on-board computer (102) and configured to manage communication between the subsystems (12) and external entities (150, 160). The link system (100) is configured to determine that an anomaly has occurred in functionality of the on-board computer (102) and/or at least one subsystem (12). As a consequence of the determination that an anomaly has occurred, the link system (100) initiates a recovery procedure that comprises enabling the external entity (150, 160) to execute recovery actions in relation to the on-board computer (102) and/or at least one subsystem (12).

The present disclosure provides a satellite anomaly detection method and system for an adversarial network auto-encoder. The method includes: obtaining a variational auto-encoder and a generative adversarial network; adding the generative adversarial network to the variational auto-encoder, and determining an optimized variational auto-encoder; obtaining to-be-detected satellite telemetry data; and determining a current operating status of a satellite based on the to-be-detected satellite telemetry data by using the optimized variational auto-encoder, where the current operating status includes a normal operating state or an abnormal operating state. The satellite anomaly detection method and system for an adversarial network according to the present disclosure solve the low accuracy problem of automatic satellite anomaly detection in the prior art.

This application provides an example satellite, an example terminal device, an example satellite communication system, and an example satellite communication method. One example satellite communication method includes obtaining, by a first satellite, at a media access control (MAC) layer, data and/or signaling, where the first satellite is a low orbit satellite. When MAC-layer first processing needs to be performed on the data and/or the signaling, performing, by the first satellite, the MAC-layer first processing on the data and/or the signaling. The MAC-layer first processing includes at least one of hybrid automatic repeat request (HARM) function processing or random access (RA) function processing.

A wideband transceiver for a gateway is presented. The wideband transceiver may interface with the gateway's processors over an interface that carries data encapsulated in baseband frames. The wideband transceiver may comprise a modulator and a high power amplifier and may improve a transmitted signal quality and may utilize a wideband for wireless communications, for example, for a satellite communication system.

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.

The invention relates to a method for communicating from a plurality of gateways (10) to a satellite (14) over a set of uplink channels (12) and then towards Earth (22) in a plurality of beams (20). In that context, inter-beam interference mitigation precoding (s40) of signals intended to non-space-based receiver locations (18) is performed. At each gateway (10), precoding weightings are generated (s30) and uplink signals are transmitted (s32) to the satellite (14) in each of the uplink channels (12). At the satellite (14), the uplink signals are received (s34) from the gateways (10) over the uplink channels (12), and, for each uplink signal, a downlink signal (s36) is derived before transmitting (s38) the downlink signals towards Earth (22). In addition, constraints are defined to allow an effective inter-beam mitigation precoding processing. In other words, the method aims at providing system-wide precoding when more than one gateway is used. The invention also relates to a satellite (14), a system (100), and the use of the satellite (14).

Methods, systems, and devices for wireless communication are described. A base station may identify control information to be transmitted, in a slot, to a user equipment (UE). The base station may determine a configuration for splitting a control resource set for the control information into a first component control resource set and a second component control resource set within a supported bandwidth of the UE. The first component control resource set may be frequency diverse and time diverse from the second component control resource set. The base station may transmit the configuration to the UE.

A communications system may include a satellite and user equipment (UE) devices. When the UE devices have uplink (UL) packets to transmit, each UE device may randomly select a time slot within a finite time window associated with a time reference of the satellite. The UE device may identify a path length between itself and the satellite and may generate a timing advance based on the path length, the time reference, and the time slot. The satellite may begin to receive the UL packets within the time window and may search received signals over the time window to identify the UL packets. The satellite may recover data payloads from the identified UL packets and may pass the recovered data payloads up a protocol stack. By limiting the search to the time window, the satellite may correctly distinguish the UL packets while using a minimal amount of processing resources.

The disclosure relates to technology for assigning resources to user equipment for a beam failure recovery by a base station. The base station identifies a beam failure random access channel (BRACH) resource holding beam correspondence with a synchronization signal (SS) block resource covering the user equipment, and assigns the user equipment one or more BRACH preambles for each BRACH resource assigned to the user equipment, excluding the BRACH resource holding beam correspondence with the SS block resource covering the user equipment.