Provided are a method and device for communication. The method comprises: a network device transmits first information to a terminal device, the first information being used for indicating whether the network device acquires downlink channel information via an artificial intelligence algorithm model, and the artificial intelligence algorithm model being constructed by training with past uplink channel information and past downlink channel information serving as samples. A terminal device measures a channel state on the basis of the first information to acquire channel state information.

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a first wireless node may transmit, to a reconfigurable intelligent surface (RIS), a first signal modulated using a first modulation signature, wherein the first modulation signature is an inverted modulation signature associated with a second modulation signature to be applied by the RIS. The first wireless node may receive, from a second wireless node, a second signal indicating that the first signal has been redirected by the RIS and received by the second wireless node. Numerous other aspects are described.

Systems, apparatuses, methods, and computer programs for reference signal measurement reporting by a user equipment (UE) in a wireless communications system. In one aspect, the method can include actions of measuring a reference signal received power (RSRP) value for each of a plurality of synchronization signal block (SSB) beams from a base station, determining that a greatest RSRP value of the measured RSRP values is less than or equal to a predetermined threshold, responsive to the determination, calculating, based at least in part on the measured RSRP values and a horizontal/vertical (H/V) polarization imbalance for each of the plurality of SSB beams, a ranking of the plurality of SSB beams, and reporting at least one of the ranked plurality of SSB beams to the base station.

A wireless communication method for use in a wireless terminal is disclosed. The wireless communication method comprises receiving, from a wireless network node, a first report configuration associated with one or more reference signals, measuring the one or more reference signals, and transmitting, to the wireless network node, a report comprising at least one of at least one first reference signal in the one or more reference signals, at least one channel quality or at least one first set of group information.

A wireless communications system and a method therein for transmission of a downlink signal in a wireless communications network supporting beamforming. The system estimates uplink channel information for a radio link from a wireless device to a radio network node. Further, the system obtains downlink beamforming information related to the estimated uplink channel information from a machine learning unit. The machine learning unit comprises relationships between beamforming information and uplink channel information determined based on stored pairs of reported downlink beamforming information and measured uplink channel information. The obtained downlink beamforming information is applicable for the radio cell sector. Furthermore, the system transmits, towards the wireless device, a beamformed downlink signal using the obtained downlink beamforming information.

A device may receive configuration data identifying bands and frequencies utilized by a plurality of user equipments and may generate a user equipment broad beam based on the configuration data. The device may transmit the user equipment broad beam towards a base station with a single user equipment fixed broad beam antenna of the device and may receive, from the base station, feedback data associated with the user equipment broad beam transmitted towards the base station. The device may determine whether the feedback data identifies one or more errors at the base station for one or more of the plurality of user equipments and may perform one or more actions based on determining whether the feedback data identifies the one or more errors at the base station for one or more of the plurality of user equipments.

Methods, apparatuses, and computer programs are provided for SRS for positioning resource overhead reduction in multi-RTT. A method for a UE includes receiving an initial configuration of a plurality of sounding reference signal for positioning resources; measuring a downlink positioning reference signal received from one or more cells; determining one or more transmission beams based on reception beams used for receipt of the downlink positioning reference signal from the one or more cells; wherein the determining of the one or more transmission beams comprises a reduction of at least one beam resource associated with a sounding reference signal for positioning; and transmitting an updated sounding reference signal for positioning configuration with information about the determined one or more transmission beams. Methods are also provided for a radio node and for an LMF.

According to an example aspect of the present invention, there is provided a method, comprising: transmitting, by a first transceiver of a first radio technology, wherein a first device comprises the first transceiver, a calibration start message to a second device, transmitting a calibration message by a second transceiver of a second radio technology, wherein the first device comprises the second transceiver, receiving channel state information, by the first transceiver from the second device, wherein the channel state information is based on reception of the calibration message, determining at least one coefficient for null steering towards the second device based on the channel state information, and transmitting a directional message to a third device, using the at least one coefficient.

Provided are a beam recovery processing method, a beam recovery method, a base station and a terminal. The beam recovery processing method includes: determining, by a transmitting end, a configuration information set for instructing a receiving end to perform a beam recovery; and transmitting, by the transmitting end, the configuration information set to the receiving end.

A method and an apparatus for processing a synchronization signal block, and a communications device are provided. The method includes: detecting a Synchronization Signal Block (SSB) at a preset frequency domain location to obtain a first SSB, where the first SSB includes at least one of the following: an SSB having a target Extended Cyclic Prefix (ECP) or a plurality of identical SSBs. The method further includes decoding the first SSB.