Embodiments of the present disclosure may relate to an apparatus with a first component and a second component coupled with the first component by a plurality of signal wires. A first wire of the plurality of signal wires may be to carry a command byte of a packet and a first data byte of the packet from the first component to the second component. A second wire of the plurality of signal wires may be to carry a second data byte of the packet from the first component to the second component when the first signal wire carries the command byte of the packet and carry a third data byte of the packet from the first component to the second component when the first signal wire carries the first data byte of the packet. Other embodiments may be described or claimed.

A method and apparatus for operating a satellite system including different satellites that may belong to different types of satellite constellations. In some implementations, the satellite system may include a LEO satellite constellation and one or more non-LEO satellite constellations that can be used to increase the forward link capacity of the LEO satellite constellation, for example, by allowing an LEO satellite to offload at least some of its forward link traffic to one of the non-LEO satellites. The user terminals can dynamically switch forward link communications between a LEO satellite and a non-LEO satellite while maintaining a return link connection with the LEO satellite.

A method and apparatus for operating a satellite system including different satellites that may belong to different types of satellite constellations. In some implementations, the satellite system may include a LEO satellite constellation and one or more non-LEO satellite constellations that can be used to increase the forward link capacity of the LEO satellite constellation, for example, by allowing an LEO satellite to offload at least some of its forward link traffic to one of the non-LEO satellites. The user terminals can dynamically switch forward link communications between a LEO satellite and a non-LEO satellite while maintaining a return link connection with the LEO satellite.

A method and apparatus for operating a satellite system including different satellites that may belong to different types of satellite constellations. In some implementations, the satellite system may include a LEO satellite constellation and one or more non-LEO satellite constellations that can be used to increase the forward link capacity of the LEO satellite constellation, for example, by allowing an LEO satellite to offload at least some of its forward link traffic to one of the non-LEO satellites. The user terminals can dynamically switch forward link communications between a LEO satellite and a non-LEO satellite while maintaining a return link connection with the LEO satellite.

A network may use enhanced sounding reference signal (SRS) transmission techniques to support reference signal transmissions over shared spectrum. For example, a wireless device may receive an uplink grant and an indicator. The uplink grant may include an uplink resource allocation to the wireless device and the indicator may alert the device of a forthcoming reference signal transmission. The wireless device may use the uplink grant and the indicator to determine a reference signal transmission period relative to the resources assigned in the uplink grant. For example, the wireless device may determine that the reference signal transmission period is prior to, during, or subsequent to the uplink transmission period. In some cases, a wireless device may be aperiodically or periodically scheduled for reference signal transmissions.

A satellite-based very-high-throughput system is provided and a web-caching system based on a high-altitude platform station, an aerostat for example, having the advantage of decreasing the throughput required over the feeder link without however requiring a cache server to be installed on board the satellite.

Provided a relay device that performs relay among a plurality of optical communication devices that perform communication using at least time division multiplexing, the device including a data length acquisition unit configured to acquire information on a data length of an uplink signal transmitted from the optical communication device using the uplink signal, a management control signal generation unit configured to generate a management control signal used for management and control, a management control signal division unit configured to divide the generated management control signal based on the information on the data length of the uplink signal acquired by the data length acquisition unit, and a management control signal superimposition unit configured to superimpose the divided management control signal on the uplink signal and transfers the superimposed signal to another optical communication device.

A communication apparatus includes a signal processor that determines a transmission timing and/or a frequency, wherein the transmission timing and/or the frequency for each of a plurality of terminals is located within a frame corresponding to a communicable range. The communication apparatus includes a weighting synthesizer that applies weights to each of a plurality of modulated symbol sequences and transmits the weighted plurality of modulated symbol sequences from an antenna element. The number of modulated symbol sequences that can be simultaneously transmitted in the same period of time and the same frequency band is different depending on communicable ranges in each of the plurality of frames, each of the plurality of frames including subframes. The signal processor allocates, to each of the subframes, one or more modulated symbol sequences, the number of which is equal to or fewer than the number of modulated symbol sequences that can be simultaneously transmitted.

A communication apparatus includes a signal processor that determines a transmission timing and/or a frequency, wherein the transmission timing and/or the frequency for each of a plurality of terminals is located within a frame corresponding to a communicable range. The communication apparatus includes a weighting synthesizer that applies weights to each of a plurality of modulated symbol sequences and transmits the weighted plurality of modulated symbol sequences from an antenna element. The number of modulated symbol sequences that can be simultaneously transmitted in the same period of time and the same frequency band is different depending on communicable ranges in each of the plurality of frames, each of the plurality of frames including subframes. The signal processor allocates, to each of the subframes, one or more modulated symbol sequences, the number of which is equal to or fewer than the number of modulated symbol sequences that can be simultaneously transmitted.

Certain aspects provide a method for wireless communications by a first access point, comprising determining a first schedule of intervals for the first access point to communicate with a first group of one or more wireless devices, wherein intervals of the first schedule are synchronized with wake up or transmission cycles of the first group of one or more wireless devices and communicating with the first group of one or more wireless devices according to the first schedule.