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.

This application provides a method for transmitting an SS/PBCH block and an apparatus. The method includes: A terminal device receives one SS/PBCH block in an SS/PBCH block burst set, and then obtains indication information based on the one SS/PBCH block. The indication information may be used to indicate candidate indexes of at least one SS/PBCH block in the SS/PBCH block burst set, and a quantity of the candidate indexes is greater than 64. For example, the quantity of candidate indexes may be 128, 160, 180, 196, 240, or the like. A network device may not be limited to 64 candidate indexes. In other words, a quantity of candidate positions used to send the SS/PBCH block is not limited to 64. Therefore, the network device may send a larger quantity of SS/PBCH blocks to the terminal device.

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.

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive downlink control information that identifies a first precoder indicator selected from a set of precoder indicators and a second precoder indicator selected from a subset of the set of precoder indicators. The UE may communicate using multiple antenna panels based at least in part on the first precoder indicator and the second precoder indicator. Numerous other aspects are provided.

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.

There is provided mechanisms for performance degradation handling between a first radio access network node that operates in a first frequency band and provides network access for subscribers of a first mobile network operator and a second radio access network node that operates in a second frequency band and provides network access for subscribers of a second mobile network operator. A method is performed by the first radio access network node. The method comprises identifying performance degradation impacting the network access for the subscribers of the first mobile network operator. The performance degradation is identified as originating from a particular direction relative the first radio access network node and as caused by the second radio access network node. The method comprises providing, towards the second radio access network node, an indication of the performance degradation. The indication specifies the particular direction and identifies the second radio access network node as causing the performance degradation.

Provided are a quasi-co-location information obtaining method, communication node and storage medium. The method of obtaining quasi-co-location information, including: acquiring, by a communication node based on first information, a number x and/or a determination mode of quasi-co-location reference signal sets of a first element; where the first information includes at least one of: information indicated in a downlink control channel that schedules the first element; the number of quasi-co-location reference signal set corresponding to a predetermined codepoint in a transmission configuration indicator (TCI) state mapping table; the number of CORESET group; the maximum number of quasi-co-location reference signal sets corresponding to one codepoint in the TCI state mapping table; or a number of time domain repetition of the first element; the number of quasi-co-location reference signal sets corresponding to a second element.

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.