A base station may identify one or more beams toward a node for communication with at least one UE. The one or more beams may correspond to a plurality of beams from the node. The base station may transmit, to the node, an indication to adjust a surface phase of the node corresponding to the one or more beams or one of the plurality of beams from the node. The base station may select at least one beam of the plurality of beams from the node for communication with the at least one UE. The base station may communicate with the at least one UE via the node and the at least one beam. The at least one beam of the plurality of beams from the node may be based on a defocusing operation associated with a virtual focal point.

A method of operating a communication device includes: sweeping a plurality of first reception beams; measuring reference signals, received from another communication device, based on the plurality of first reception beams; estimating a downlink channel gain based on the measured reference signals and reception array response information corresponding to reception antenna characteristics of the communication device; generating a downlink channel related matrix based on the downlink channel gain and the reception array response information; determining a second reception beam based on the downlink channel related matrix; determining a transmission beam based on at least one of the downlink channel gain, the downlink channel related matrix, and the second reception beam; and performing communication with the other communication device using the second reception beam and the transmission beam.

The present disclosure relates to a mobile terminal, a base station and respective operation methods. The mobile terminal comprises circuitry, which in operation assumes that a base station is configured to use one of a plurality of transmission beams, receives a downlink control channel candidate and a corresponding demodulation reference signal using one of a plurality of reception beams corresponding to the assumed one of the plurality of transmission beams, performs channel estimation based on the received demodulation reference signal, and, depending on the quality, demodulates the downlink control channel candidate using the channel estimation. The channel estimation is performed using a demodulation reference signal sequence which is generated observing an association which is associating the generated sequence with the assumed one of the plurality of transmission beams such that at least two of the plurality of transmission beams are associated with different demodulation reference signal sequences.

A method and a device for repeatedly transmitting an uplink channel in a wireless communication system are disclosed. The method for repeatedly transmitting an uplink channel, according to one embodiment of the disclosure, can comprise the steps of: receiving configuration information related to the repeated transmission of N (N is a natural number) number of resource units (RUs) of an uplink channel; receiving downlink control information (DCI); and transmitting the uplink channel on the basis of the configuration information.

A terminal according to one aspect of the present disclosure includes a receiving section that receives a medium access control-control element (MAC CE) to update a transmission configuration indication (TCI) state, and a control section that, when a configuration related to at least one of a spatial relation and a pathloss reference signal for a specific uplink signal satisfies an application condition, uses the TCI state for the pathloss reference signal from timing after transmission of a positive acknowledgment (ACK) to the MAC CE. According to one aspect of the present disclosure, it is possible to appropriately transmit a UL signal.

The disclosure relates to an electronic device and method for a wireless communication system, and a storage medium. Various embodiments regarding beam management are described. In one embodiment, an electronic device for a terminal device side in a wireless communication system can comprise a processing circuit system. The processing circuit system can be configured to obtain random access configuration information, and send a random access preamble based on the random access configuration information, so as to indicate one or more transmission beams of a base station side, in a downlink, paired with one or more receiving beams at the terminal device side.

The present disclosure provides a method and a device in a node for wireless communications. A first node determines a first resource set and a first resource set group from M resource sets; and monitors a first-type channel in the first resource set group in a first time window. Any two of the M resource sets are overlapping in time domain, and the first resource set group comprises the first resource set; any of the M resource sets is linked to one or two spatial states; a second resource set is any of the M resource sets different from the first resource set; whether a first condition is fulfilled is used to determine whether the second resource set belongs to the first resource set group. The above method avoids performance loss resulting from the UE's unnecessary abandonment of monitoring over some PDCCH candidates.

There is provided mechanisms for transmission of reference signal resources from a terminal device. A method is performed by the terminal device. The terminal device comprises at least two antenna panels and a baseband chain operable to be switched between the at least two antenna panels. The baseband chain is thereby connected to each of the antenna panels one at a time. The method comprises distributing a fixed set of reference signal resources among the at least two antenna panels by selecting which beams are to be used for transmission of the reference signal resources. The reference signal resources are distributed among the at least two antenna panels according to antenna panel selection information. The method comprises transmitting each of the reference signal resources in a respective one of the beams as the baseband chain is connected to each antenna panel used for generating the beams.

Provided are a method and apparatus for determining information, a method and apparatus for determining corresponding relationship, a device, and a medium. The method for determining the corresponding relationship includes determining a first corresponding relationship according to at least one of signaling information or a predetermined rule. The first corresponding relationship includes at least one of the following: a corresponding relationship between N pieces of third information and M sets of beam failure recovery parameters or a corresponding relationship between a first-type frequency domain bandwidth group and a second-type frequency domain bandwidth group. N and M are each a positive integer greater than or equal to 1. A piece of third information includes at least one of the following: a control resource set (CORESET) group or a frequency domain bandwidth group.

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may transmit a measurement report based at least in part on a set of measurements of one or more reference signals received using a set of candidate beams; transmit a negative acknowledgement for a downlink transmission scheduled for one or more beams of the set of candidate beams; and monitor one or more new beams of the set of candidate beams for a retransmission of the downlink transmission. Numerous other aspects are provided.