Systems and methods are disclosed, and one includes receiving an encoded data stream, generating a first upsampled encoded block, based on a first upsampling rate upsampling of a first content from the data stream, communicating the first upsampled encoded block to a beam hopping satellite, on an uplink, during an uplink first time interval having a synchronization with a first beam of the beam hopping satellite, as a feed for the first beam. The systems may further include generating, starting at a time within the uplink first time interval, a second upsampled encoded block, based on a second upsampling rate upsampling of a second content from the data stream, and communicating the second upsampled encoded block via the uplink to the beam hopping satellite, during an uplink second time interval having a synchronization with a second beam of the beam hopping satellite, as a feed for the second beam.

Improved methods, systems, devices, or apparatus that support prioritization for potential shared data transmissions are described. In some cases, a receiving device may identify transmission parameters for shared transmissions including a scheduled shared transmission and determine resources for a potential shared transmission. The receiving device may monitor for the shared transmission(s) based on priority rules for a shared transmission and the potential shared transmission. For instance, the receiving device may be configured to receive only one of the scheduled or potential shared transmission. In some cases, the transmitting device may consider the priority rules and determine whether to transmit or drop one or more shared transmissions.

A space-time line coding system includes: in multiple antenna communication configured by at least one transmission antenna and at least two reception antennas, a transmitting end which encodes two information symbols using channel state information and sequentially transmits two encoded information symbols to a receiving end using the at least one transmission antenna; and a receiving end which receives two encoded information symbols using at least the two reception antennas and combines the received signals without channel state information.

When transmitting signals from a plurality of base stations (broadcasting stations), the base stations include at least a first base station having a first antenna with a first polarization and a second base station having a second antenna with a second polarization that is different from the first polarization. Then, when the first base station transmits a signal from the first antenna having the first polarization, the second base station transmits the same signal as the first antenna of the first base station from a second antenna having the second polarization, at the same time.

This disclosure provides systems, methods, and apparatuses, including computer programs encoded on computer storage media, for managing high volumes of space-time-streams in Wi-Fi systems. An access point (AP) may transmit packets including long training field (LTF) sections using a number of space-time-streams greater than eight. Mobile stations (STAs) in the system may or may not be capable of processing this number of streams. The AP may modulate an LTF section using a matrix with dimensions smaller than the number of streams by using tone-interleaving or by performing modulation with separate matrices in time and frequency. In some other implementations, the AP may split the antennas for transmission into groups, each group transmitting either different packets in a subset of streams or a same packet in a subset of tones. In further implementations, the AP may combine multiple space-time-streams into a super stream that supports reception at different types of STAs.

A communication device according to the present invention is a communication device that wirelessly communicates with a counterpart communication device in a full-duplex mode using orbital angular momentum, and includes a second interference cancellation circuit that generates a replica of an interference signal received together with one or more signals transmitted from the counterpart communication device, on the basis of one or more signals to be transmitted to the counterpart communication device, and subtracts the replica from a received signal.

A signal receiving method, a signal transmission method, UE, and a network device are provided. The signal receiving method includes: determining a frequency domain position and/or spatial domain position for receiving a signal, wherein the frequency domain position includes one or more of a plurality of frequency domain positions, and the spatial domain position includes one or more of a plurality of spatial domain positions; and receiving the signal at the determined frequency domain position and/or spatial domain position. The signal is one or more of a pre-indication signal, information carried in a PDCCH, and a paging message.

A method for reporting channel state information of a terminal comprises: a step of measuring CSI-RS transmitted from a base station; and a step of reporting CSI generated on the basis of the CSI-RS measurement to the base station, wherein the CSI comprises: a PMI for indicating a precoding matrix from a codebook and an RI for indicating a rank, wherein the PMI comprises a first PMI for a beam group selected by the terminal and a second PMI which comprises a beam sub-group selection information for beams included in the beam group and phase-matching information for each antenna port polarization for the selected beam sub-group, and wherein as the rank increases, the phase-matching information may be indicated with different granularity from each other depending on whether the beam sub-groups selected from the beam group are the same or different.

A method and an apparatus for implementing transmission diversity using a single transmitter in a wireless communication system are provided. The method of operating a transmitter for transmission diversity in a wireless communication system includes generating a first data symbol by receiving a baseband signal from a data source, generating a second data symbol having an equal phase to the first data symbol, generating a first complex conjugate symbol by performing a complex conjugate operation for the first data symbol, generating a second complex conjugate symbol having a phase difference of 180 degrees from the first complex conjugate symbol, transmitting the first data symbol through a first transmission antenna and transmitting the second data symbol through a second transmission antenna in a first time slot, and transmitting the first complex conjugate symbol through the first transmission antenna and transmitting the second complex conjugate symbol through the second transmission antenna in a second time slot.

The methods and apparatus disclosed herein processes reference signals in an antenna diversity system, e.g., where both the transmitting and receiving devices use multiple antennas. The solution presented herein process reference signals at the transmitting device in such a way to enable the receiving device to efficiently and accurately estimate the covariance matrix associated with data transmitted using transmitter diversity. This is achieved by processing the reference signals used for the covariance estimation and the data signals in the same way, e.g., by precoding data and reference signal portions of one or more signals using the same coding scheme.