Wireless communication is established between a first station and a second station in a wireless communication system, the first station having a beamforming network configured to form a succession of beams using antenna weight vectors selected from a pre-determined plurality of antenna weight vectors. The orientations of the beams are arranged in a grid comprising a plurality of rows. The beams of each row are spaced in angular position such that at least one beam in a respective row is positioned mid-way between the positions of two beams on an adjacent row. A succession of beams is formed to send first messages using a selected first sub-set of the antenna weight vectors. If a first message in a first beam is received at the second station, a further succession of beams is formed using a second sub-set of the antenna weight vectors selected to form beams adjacent to the first beam.

A user equipment (UE) configured for multi-antenna communication estimates at least one of a rank indicator and a channel quality indicator for device to device (D2D) based on communication data associated with a plurality of packets communicated using D2D communication and without using a dedicated reference signal for D2D communication. The UE may be configured as at least one of a transmitter (Tx) and a receiver (Rx) for vehicle-to-everything (V2X) communication through a sidelink channel.

Methods, systems, and devices for wireless communications are described. A user equipment (UE) may indicate, to a base station, a capability of the UE to use a channel measurement resource for both a joint transmission hypothesis and a single transmission hypothesis. The UE may receive, based on indicating the capability of the UE, a configuration message indicating a first channel measurement resource that is associated with a first transmission configuration indicator state and that is configured for a first joint transmission hypothesis. The UE may obtain a channel measurement for both the first joint transmission hypothesis and a first single transmission hypothesis using the first channel measurement resource based on the configuration message.

A wireless communication method and a wireless communication device. The method comprises: a sending side device generating a common sequence so as to send to a plurality of receiving side devices; each of the plurality of receiving side devices determining a first analogue weight parameter according to a receiving situation of the common sequence, and determining an antenna configuration for sending a pre-determined pilot frequency signal corresponding to the receiving side device according to the determined first analogue weight parameter so as to send the pre-determined pilot frequency signal to the sending side device; and the sending side device determining a second analogue weight parameter regarding the receiving side device according to a receiving situation of the pre-determined pilot frequency signal, and determining an antenna configuration for sending data regarding the receiving side device according to the determined second analogue weight parameter so as to send the data to the receiving side device.

A wireless communication method and a wireless communication device. The method comprises: a sending side device generating a common sequence so as to send to a plurality of receiving side devices; each of the plurality of receiving side devices determining a first analogue weight parameter according to a receiving situation of the common sequence, and determining an antenna configuration for sending a pre-determined pilot frequency signal corresponding to the receiving side device according to the determined first analogue weight parameter so as to send the pre-determined pilot frequency signal to the sending side device; and the sending side device determining a second analogue weight parameter regarding the receiving side device according to a receiving situation of the pre-determined pilot frequency signal, and determining an antenna configuration for sending data regarding the receiving side device according to the determined second analogue weight parameter so as to send the data to the receiving side device.

The present disclosure discloses an adaptive MIMO detection method and system. The method includes the following steps: a) determining whether a Signal to Noise Ratio of a data packet is greater than a set threshold for Signal to Noise Ratio, and if yes, performing ZF preprocessing on the channel matrix, and if not, performing MMSE preprocessing on the channel matrix; b) performing sorted QR decomposition on the channel matrix processed in step a) to obtain a plurality of decomposition matrices; c) determining whether a condition number of the channel matrix of the data packet is greater than a set threshold for condition number of the channel, and if yes, Lattice Reduction is performed on the decomposition matrices obtained in step b); d) determining whether an estimated value of an interference term of the channel matrix is greater than a threshold for the estimated value of the interference term of the channel matrix, and if yes, SIC detection mode is selected for MIMO detection on the data packets, and if not, K-best detection mode is selected for MIMO detection on the data packets; and e) according to processing results from steps a) to d), performing MIMO detection on the data packet.

The present disclosure discloses an adaptive MIMO detection method and system. The method includes the following steps: a) determining whether a Signal to Noise Ratio of a data packet is greater than a set threshold for Signal to Noise Ratio, and if yes, performing ZF preprocessing on the channel matrix, and if not, performing MMSE preprocessing on the channel matrix; b) performing sorted QR decomposition on the channel matrix processed in step a) to obtain a plurality of decomposition matrices; c) determining whether a condition number of the channel matrix of the data packet is greater than a set threshold for condition number of the channel, and if yes, Lattice Reduction is performed on the decomposition matrices obtained in step b); d) determining whether an estimated value of an interference term of the channel matrix is greater than a threshold for the estimated value of the interference term of the channel matrix, and if yes, SIC detection mode is selected for MIMO detection on the data packets, and if not, K-best detection mode is selected for MIMO detection on the data packets; and e) according to processing results from steps a) to d), performing MIMO detection on the data packet.

Provided in the disclosure are a method for determining uplink transmission parameters and a method for transmitting configuration information. The method includes: receiving indication information transmitted from a network side; and determining uplink transmission parameters on the basis of the indication information. Also provided in the disclosure are a device for determining uplink transmission parameters and a device for transmitting configuration information, and a storage medium. The disclosure solves the problem in which a terminal cannot determine uplink transmission parameters in a variety of complicated antenna configurations, thus achieving the effect of effectively reduced overhead.

Provided are a method for indicating reference signal configuration information, a base station and a terminal. The method includes that a first communication node determines joint signaling and the first communication node transmits the joint signaling to a second communication node. The joint signaling includes first information and second information. The first information includes at least one of the following: quasi-colocation configuration information and configuration information of a transmission beam. The second information includes at least one of the following: configuration information of a phase tracking reference signal and configuration information of a demodulation reference signal.

Provided are a method for indicating reference signal configuration information, a base station and a terminal. The method includes that a first communication node determines joint signaling and the first communication node transmits the joint signaling to a second communication node. The joint signaling includes first information and second information. The first information includes at least one of the following: quasi-colocation configuration information and configuration information of a transmission beam. The second information includes at least one of the following: configuration information of a phase tracking reference signal and configuration information of a demodulation reference signal.