A first wireless communication device includes transceiver circuitry to access data corresponding to a beamforming transmission, transmit, from the first wireless communication device to at least one second wireless communication device, a first sounding packet, and receive, from the at least one second wireless communication device, at least one second sounding packet. The second sounding packet includes channel feedback determined at the at least one second wireless communication device. Processor circuitry is to determine a steering matrix based on the channel feedback. The steering matrix is configured to at least one of reduce and avoid interference caused at the at least one second wireless communication device by transmissions from the first wireless communication device. The transceiver circuitry is further to perform the beamforming transmission to at least one third wireless communication device in accordance with the data corresponding to the beamforming transmission and the steering matrix.

Provided is a frame configuration usable for both SISO transmission and MISO and/or MIMO transmission. A frame configurator of a transmission device configures a frame by gathering data for SISO and configures a frame by gathering data for MISO and/or MIMO data, thereby to improve the reception performance (detection performance) of a reception device.

This application provides an NR uplink codebook configuration method and a related device. The method may include: receiving, by a network device, reference transmission unit configuration information reported by a terminal, where the reference transmission unit configuration information includes: a quantity N of transmission units of the terminal, a quantity M of groups into which the N transmission units are divided, and a quantity of transmission units included in each group; determining transmission port configuration information of the terminal based on the reference transmission unit configuration information; receiving reference codebook configuration information reported by the terminal; determining a codebook type of the terminal based on the reference codebook configuration information; and sending the transmission port configuration information and the codebook type to the terminal. In this application, two-stage codebooks or single codebooks adapted to different antenna array forms on a terminal side in an NR scenario can be designed.

Provided is a frame configuration usable for both SISO transmission and MISO and/or MIMO transmission. A frame configurator of a transmission device configures a frame by gathering data for SISO and configures a frame by gathering data for MISO and/or MIMO data, thereby to improve the reception performance (detection performance) of a reception device.

The disclosure relates to an encoder for encoding a vector comprising channel state information and/or a pilot sequence. The encoder includes at least one processor; and a non-transitory computer-readable storage medium coupled to the at least one processor and storing programming instructions for execution by the at least one processor, wherein the programming instructions instruct the at least one processor to: determine a cell of a sphere mesh, wherein the cell includes the vector; determine a refined sphere mesh based on an initial sphere mesh; and determine a binary representation of a first identifier of an initial cell of the initial sphere mesh that includes the vector and a second identifier of a refined cell of the refined sphere mesh that includes the vector.

A transmission method for transmitting a first modulated signal and a second modulated signal in the same frequency at the same time. Each signal has been modulated according to a different modulation scheme. The transmission method applies precoding on both signals using a fixed precoding matrix, applies different power change to each signal, and regularly changes the phase of at least one of the signals, thereby improving received data signal quality for a reception device.

Disclosed is a relay method including: receiving, as input, respective reception signals by two receive antennas, the reception signals each including a reception signal resulting from multiplexing respective transmission signals transmitted by two transmission antennas in a first frequency band; performing frequency conversion on the reception signal received by one of the receive antennas so as to obtain a signal of a third frequency band; and performing frequency multiplexing on the signal having the third frequency band and the reception signal received by the other of the receive antennas.

A high-dimensional signal transmission method is provided. The method generates M M-dimensional first signals on the basis of M original signals and generates M M-dimensional second signals on the basis of a precoding signal and of the first signals, and finally, a transmitter sums all of the second signals and then transmits by utilizing M subchannels. As such, each subchannel carries information of the M original signals; hence, when any subchannel experiences deep fading, the deep fading is shared jointly by M signals, thus preventing the deep fading from causing a particularly severe impact on any signal. Moreover, all of the original signals can be recovered by utilizing the signals on the other subchannels, thus increasing the systematic resistance against subchannel deep fading. Meanwhile, the system implements the parallel transmission of the M original signals, thus ensuring the throughput of a communication system.

Provided is a precoding method for generating, from a plurality of baseband signals, a plurality of precoded signals to be transmitted over the same frequency bandwidth at the same time, including the steps of selecting a matrix F[i] from among N matrices, which define precoding performed on the plurality of baseband signals, while switching between the N matrices, i being an integer from 0 to N1, and N being an integer at least two, generating a first precoded signal z1 and a second precoded signal z2, generating a first encoded block and a second encoded block using a predetermined error correction block encoding method, generating a baseband signal with M symbols from the first encoded block and a baseband signal with M symbols the second encoded block, and precoding a combination of the generated baseband signals to generate a precoded signal having M slots.

A method performed by a base station of enabling a User Equipment (UE) to determine a precoder codebook in a wireless communication system is provided. The base station transmits, to the UE, information regarding precoder parameters enabling the UE to determine the precoder codebook. The precoder parameters are associated with a plurality of antenna ports of the base station. The precoder parameters relate to a first dimension and a second dimension of the precoder codebook. The plurality of antenna ports comprises a number of antenna ports that is a function of a number of antenna ports in the first dimension, and a number of antenna ports in the second dimension.