In a wireless communication system, a user equipment (UE) may measure synchronization signal blocks (SSBs) to evaluate neighbor cells. A UE configured with multiple potential receive beams may conventionally measure one receive beam per SSB. A UE may improve the speed of receive beam measurements by performing measurements using demodulation reference signals (DMRS) of physical broadcast channel (PBCH) symbols, which occur twice per SSB. The UE may perform a cell search for neighbor cells available to the UE in a synchronized network to determine a number of the neighbor cells and timing information for each of the neighbor cells. The UE may measure one or more receive beams using the DMRs of the PBCHs of SSBs received from the neighbor cells. Each receive beam may be measured during a beam switch time unit including a PBCH symbol from each of the neighbor cells according to the timing information.

Techniques, described herein, include solutions for enabling a base station and user equipment (UE) to use low beam (e.g., frequency range 1 (FR1)) communications to determine a line-of-sight (LOS) status of a beam between the base station and the UE, and use the LOS status to establish or maintain a link or channel using a high beam (e.g., frequency range 2 (FR2)).

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may identify that one or more thresholds are satisfied. The UE may estimate, based at least in part on the one or more thresholds being satisfied, for each beam at one or more beam levels on one or more antenna panels, an application layer throughput, wherein the one or more beam levels are each associated with a number of antenna elements. The UE may generate a set of candidate beams that includes one or more beams for which the respective estimated application layer throughput satisfies an application layer throughput requirement. The UE may select a serving beam for which the estimated application layer throughput satisfies the application layer throughput requirement with a fewest number of antenna elements. Numerous other aspects are described.

Disclosed are a method and a device for dynamically indicating and applying spatial parameters in a wireless communication system. A method for applying spatial parameters by means of a terminal in a wireless communication system, according to one embodiment of the present disclosure, comprises the steps of: receiving, from a base station, downlink control information (DCI) including first information on one or more spatial parameters, second information on time domain resource allocation, and third information on whether to schedule a data channel; transmitting, on the basis of the second information, hybrid automatic repeat request-acknowledgement (HARQ-ACK) information to the base station on the basis of the third information indicating that the data channel is not scheduled; and after transmitting the HARQ-ACK information, performing uplink transmission to the base station or downlink reception from the base station on the basis of the one or more spatial parameters based on the first information.

A method of a transmitting terminal may include: setting an initial beam pairing flag indicating that the transmitting terminal transmitting sidelink-synchronization signal blocks (S-SSBs) is not a synchronization reference terminal; transmitting a plurality of S-SSBs including the initial beam pairing flag in a beam sweeping scheme; receiving, from a receiving terminal, information on a preferred beam among a plurality of beams through which the plurality of S-SSBs are transmitted; and transmitting data to the receiving terminal using the preferred beam.

A first device receives first configuration information used for beam training, and may determine, based on the first configuration information, L codewords associated with M reference signals. The first device may measure the M reference signals, determine V codewords in the L codewords based on a measurement result, and report first indication information indicating the V codewords.

A beam determining method is applied to a network device, and includes: determining beam configuration information, wherein the beam configuration information at least includes parameters configured to indicate a receiving beam corresponding to at least one of N repeated transmissions of a downlink channel, where N is a natural number; and determining a transmitting beam corresponding to the at least one of the N repeated transmissions according to beam parameters corresponding to the at least one of the N repeated transmissions of the downlink channel.

The embodiments of the present application relate to a beam determination method and device. When data is sent by means of the determined beam, loss of transmission performance is avoided. In the present application, a terminal sends reference information to a network side device according to configuration of the network side device, the reference information including power backoff information and/or reference signal received power, and the reference signal received power being obtained on the basis of the power backoff information; and the terminal receives a target beam indication sent by the network side device, and sends or receives a signal on the basis a target beam in the target beam indication, the target beam indication being determined by the network side device on the basis of the reference information.

A communication device communicates with the partner device by forming a first beam used when transmitting a signal to the partner device based on a state of the transmission path estimated by the communication device, or by forming a second beam used when transmitting a signal to the partner device based on information pertaining to specification of a beam used when transmitting a signal to the partner device determined by the partner device, and controls, during communication with the partner device using the first beam, to switch a beam to be used from the first beam to the second beam based on a first wireless quality in the partner device for a first wireless signal transmitted using the first beam and a second wireless quality in the partner device for a second wireless signal transmitted using a predetermined beam related to the second beam.

Apparatuses and methods for beam management for repeaters. A method for a network-controlled repeater (NCR) includes receiving, by an NCR mobile termination (NCR-MT) entity, first information for a list of spatial domain filters for an access link of an NCR forwarding (NCR-Fwd) entity, second information for a set of spatial relations corresponding to reference signals (RS) for transmission or reception on a control link (C-link) of the NCR-MT entity, and third information indicating an uplink (UL) or downlink (DL) direction for each time domain resource. The method further includes determining an UL time domain resource, a first spatial domain filter, and a second spatial domain filter based on the second information. The method further includes receiving, by the NCR-Fwd entity, a radio frequency (RF) signal on the access link using the first spatial domain filter and transmitting the RF signal on a backhaul link using the second spatial domain filter.