A beam failure recovery method and apparatus, and a device. The method includes: determining, based on a measurement result of a target reference signal corresponding to a target physical downlink control channel PDCCH, whether a beam failure event occurs, where the target PDCCH includes at least a first PDCCH repeatedly transmitted for K times, and K≥2; and reporting a beam failure recovery request to a network-side device.

Various embodiments relate to a next generation wireless communication system for supporting a data transmission rate higher than that of a 4.sup.th generation (4G) wireless communication system, and the like. According to various embodiments, a method for transmitting and receiving a signal in a wireless communication system and an apparatus for supporting same can be provided. Various other embodiments can be provided.

A method of a terminal may comprise: receiving, from a base station, DCI including downlink scheduling information and information indicating that a beam adjustment period exists; receiving, from the base station, an initial signal in the beam adjustment period; adjusting a Rx beam of the terminal based on a measurement result of the initial signal; and receiving, from the base station, data by using the adjusted Rx beam in a resource region indicated by the downlink scheduling information.

A terminal according to one aspect of the present disclosure includes: a control section that determines a quasi-co-located (QCL) parameter for downlink, when spatial relation information and path-loss reference signal information for uplink transmission are not provided and default spatial relation and path-loss reference signal enabling information for the uplink transmission is provided, in a case where a plurality of different TCI states mapped to a transmission configuration indication (TCI) code point are not provided; and a transmitting section that transmits the uplink transmission by using the QCL parameter. According to one aspect of the present disclosure, a spatial relation can be appropriately determined.

A method and an apparatus for uplink/downlink transmission and reception based on a beam linkage state in a wireless communication system are disclosed. A method for performing uplink transmission or downlink reception according to an embodiment of the present disclosure may comprise: receiving, from a base station (BS), information on a beam linkage state (BLS), wherein the BLS includes information on a mapping relation between reference transmission and reception and at least one target transmission and reception; receiving, from the BS, information on a first spatial parameter for the reference transmission and reception which is related to a specific BLS; and performing the uplink transmission or the downlink reception based on a second spatial parameter corresponding to the first spatial parameter.

Certain aspects of the present disclosure provide techniques for wireless communication by a user equipment (UE). For example, the UE receives a first indication indicating a same quasi co-location (QCL) mapping for multiple receive beams corresponding to a group of transmit and receive beam pairs from a network entity. Transmit and receive beam pairs are different from each other and grouping of the transmit and receive beam pairs is based on a distance between the UE and the network entity. The UE selects one of the multiple receive beams corresponding to the group of transmit and receive beam pairs, based on the distance between the UE and the network entity.

A terminal according to one aspect of the present disclosure includes a receiving section that, when different physical cell IDs are configured for a plurality of transmission/reception points (TRPs), receives information related to a downlink reference signal from a second TRP out of the plurality of TRPs by using higher layer signaling, and a control section that controls transmission of an uplink signal on the basis of the information. According to one aspect of the present disclosure, it is possible to perform appropriate communication when different physical cell IDs are configured for a plurality of TRPs.

Apparatuses and methods for beam recovery operations in a wireless communication system. A method for operating a user equipment (UE) includes transmitting a reference signal (RS) resource index (q_new), receiving an indication of a unified transmission configuration indication (TCI) state, and receiving a beam failure recovery response (BFRR). The method further includes determining, based on the q_new and the BFRR, antenna port quasi co-location (QCL) parameters for: monitoring a physical downlink control channel (PDCCH), receiving a physical downlink shared channel (PDSCH), and receiving a channel state information RS (CSI-RS) and determining, based on the q_new and the BFRR, a spatial domain filter for transmitting: a physical uplink control channel (PUCCH), a physical uplink shared channel (PUSCH), and a sounding RS (SRS). The q_new corresponds to a synchronization signal block (SSB) resource index or a CSI-RS resource configuration index.

This application discloses a synchronization signal block (SSB) transmission method, a terminal device, and a network device, and pertains to the communications field. The synchronization signal block (SSB) transmission method includes: determining a candidate SSB having a quasi-co-location (QCL) relationship within one transmission period, where the QCL relationship corresponds to a synchronization information block pattern SSB pattern; determining, according to the QCL relationship and information related to sending of a first SSB, a candidate SSB index corresponding to the first SSB, where the first SSB is a candidate SSB sent by a network device; and performing a target operation according to the candidate SSB index corresponding to the first SSB.

A terminal according to an aspect of the present disclosure includes a receiving section that receives information related to activation or deactivation of at least one of a plurality of panels, and a control section that uses one of the plurality of panels to transmit or receive a specific signal on the basis of the information. According to one aspect of the present disclosure, a plurality of panels can be appropriately used.