A communication platform such as a spacecraft, airborne platform, or terrestrial line of site wireless platform is provided with adaptive digital beamforming. The satellite digitizes a full spectrum allocation for digital channelization. A channelization engine can determine a particular user or user group associated with an uplink signal. In this manner, the communication platform can apply different processing based on the user or group associated with a signal. For example, the communication platform receives uplink signals associated with a first user group and a second user group in one embodiment. The platform dynamically generates one or more spot beams for the first user group and the second group. The platform discriminates the uplink signals to apply frequency hopping for the downlink frequency channel assignments to the second user group while the downlink frequency channel assignments for the first user group remain fixed.

A data transmitter is provided, having: a generator for generating transmission data packets, configured to split a first data packet into at least three transmission data packets, each of the transmission packets being shorter than the first data packet, the generator being configured to channel-encode the at least three transmission packets such that only a portion thereof is required for decoding the first data packet; a transmission element for transmitting data packets, configured to transmit the at least three transmission packets in a frequency channel via a communications channel with a time gap; a monitor element for monitoring the frequency channel, configured to recognize an interference or transmission of a further data transmitter in the frequency channel; the transmission element being configured not to transmit via the communications channel a packet, waiting for transmission, of the at least three transmission packets if an interference or transmission from a further data transmitter is recognized by the monitor element at the time of transmitting the transmission data packet.

Apparatus, methods, and computer-readable media for facilitating per bandwidth part TCI state or spatial relation are disclosed herein. For example, aspects disclosed herein provide techniques for enabling a UE (e.g., a reduced capability UE) to associate at least one of a TCI state or a spatial relation with respective hopping regions. An example method for wireless communication at a UE includes determining, while communicating using a first frequency range comprising a first set of frequency hops, at least one of a TCI state or a spatial relation for communicating using a second frequency range comprising a second set of frequency hops. The example method also includes communicating, after switching communication from the first frequency range to the second frequency range, using the second frequency range based on the determined at least one of the TCI state or the spatial relation.

Methods and apparatus are provided. In an example aspect, a method of transmitting a signal is provided. The method includes transmitting a frequency hopping signal on a first plurality of frequency channels in a first bandwidth using a first interference detect and avoid (DAA) scheme for each of the plurality of frequency channels, detecting interference in a predetermined proportion of the first plurality of frequency channels, and transmitting the frequency hopping signal on a second plurality of frequency channels in a second bandwidth smaller than the first bandwidth without using the first interference DAA scheme in response to detecting interference in the predetermined proportion of the first plurality of frequency channels.

A communication platform such as a spacecraft, airborne platform, or terrestrial line of site wireless platform is provided with adaptive digital beamforming. The satellite digitizes a full spectrum allocation for digital channelization. A channelization engine can determine a particular user or user group associated with an uplink signal. In this manner, the communication platform can apply different processing based on the user or group associated with a signal. For example, the communication platform receives uplink signals associated with a first user group and a second user group in one embodiment. The platform dynamically generates one or more spot beams for the first user group and the second group. The platform discriminates the uplink signals to apply frequency hopping for the downlink frequency channel assignments to the second user group while the downlink frequency channel assignments for the first user group remain fixed.

Various embodiments provide an anti-jamming method in a satellite communication (SATCOM) system. A waveform modulation is performed on a waveform of a source data to provide a modulated waveform transmitted to a transmitter and then to a receiver. The modulated waveform transmitted from the receiver is demodulated to provide a demodulated waveform. In response to interference, a game reasoning process is performed on the demodulated waveform to provide an anti-jamming adaptive waveform. By performing a game-optimal waveform modulation on the anti-jamming adaptive waveform, a frequency hopping process is used to guide the data transmission, such that the source data is transmitted with a minimal probability of being interfered.

Methods and apparatus are provided. In an example aspect, a method of transmitting a signal is provided. The method includes transmitting a frequency hopping signal on a first plurality of frequency channels in a first bandwidth using a first interference detect and avoid (DAA) scheme for each of the plurality of frequency channels, detecting interference in a predetermined proportion of the first plurality of frequency channels, and transmitting the frequency hopping signal on a second plurality of frequency channels in a second bandwidth smaller than the first bandwidth without using the first interference DAA scheme in response to detecting interference in the predetermined proportion of the first plurality of frequency channels.