Disclosed are systems and methods for enhancing sounding resource signal (SRS) communications. In some embodiments, power control parameters and/or spatial relation information is determined prior to transmissions of the SRS signal. The determination may include a dynamic determination or a selection of a power control parameter set from a plurality of power control parameter sets. In some embodiments, cross-SRS interference is reduced when multiple transmissions utilize a same resource by applying orthogonal cover codes (OCC) to the resources prior to transmission.

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive a configuration of a first resource within a slot and a second resource within the slot. The UE may receive a demodulation reference signal (DMRS) based at least in part on the first resource, wherein the DMRS is associated with a first transmit power. The UE may receive an additional DMRS based at least in part on the second resource, wherein the additional DMRS is associated with a second transmit power different from the first transmit power. Numerous other aspects are described.

The present disclosure relates to a communication method and system for converging a 5.sup.th-Generation (5G) communication system for supporting higher data rates beyond a 4.sup.th-Generation (4G) system with a technology for Internet of Things (IoT). The present disclosure may be applied to intelligent services based on the 5G communication technology and the IoT-related technology, such as smart home, smart building, smart city, smart car, connected car, health care, digital education, smart retail, security and safety services. Embodiments of the present invention provide a method for RACH re-attempt, a user equipment and a base station. The method comprises the steps of: by a base station, determining system configuration information and transmitting the system configuration information to a user equipment; and then, by the user equipment, transmitting a preamble sequence to perform random access, and if the random access is failed, performing RACH attempt according to the received RACH re-attempt configuration information to perform random access until a preset decision condition is satisfied. The embodiment of the present invention is used for RACH re-attempt when random access fails.

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may identify a maximum permissible exposure (MPE) event associated with a beam, determine that a physical uplink control channel (PUCCH) resource for transmitting a scheduling request is unavailable based at least in part on the identification of the MPE event associated with the beam, and initiate, based at least in part on the determination that the PUCCH resource is unavailable, a physical random access channel (PRACH) procedure to transmit an uplink message. Numerous other aspects are provided.

Methods and apparatuses in a wireless communication system. A base station (BS) includes a transceiver and a processor. The processor is configured to receive, via the transceiver, a channel state information (CSI) report from at least one user equipment (UE). The processor is also configured to configure CSI-reference signal (RS) resources for the at least one UE. The processor is further configured to, based on the CSI report from the at least one UE, perform one of: set a transmission power to full power for transmission in a physical downlink shared channel (PDSCH); or apply a back-off percentage to the transmission power in the PDSCH.

A method and a device in nodes used for wireless communication. A first node transmits a first reference signal and a second reference signal respectively in a first time-domain resource block and a second time-domain resource block. The first node maintains power consistency and phase continuity among multiple first-type signals belonging to a reference time window in time domain; a duration of the reference time window is no larger than a first threshold; the first reference signal and the second reference signal respectively belong to different transmission occasions; whether the first node maintains power consistency and phase continuity between the first reference signal and the second reference signal is related to whether a first condition set is satisfied; the first condition set comprises a first condition; the first condition comprises: the first reference signal and the second reference signal being identified by a same index.

Certain aspects of the present disclosure relate to techniques for controlling transmission power and prioritizing transmission carriers. A method of power distribution for different physical layer channels over one or more carriers in case of power limited user equipment (UE) is proposed. Operation modes of the UE with single and multiple power amplifiers/antennas can be supported.

A method for performing wireless communication by a first device, and a device for supporting same are provided. The method may comprise: transmitting, to a second device, at least one physical sidelink control channel (PSCCH) and at least one physical sidelink shared channel (PSSCH) related to the at least one PSCCH; receiving, from the second device, at least one sidelink (SL) hybrid automatic repeat request (HARQ) feedback information through at least one physical sidelink feedback channel (PSFCH) related to the at least one PSSCH; and determining a priority value of physical uplink control channel (PUCCH) transmission for reporting the at least one SL HARQ feedback information to a base station, based on at least one priority value of the at least one SL HARQ feedback information.

Methods by which a terminal transmits control information to multiple transmission points, panels, nodes, and beams for cooperative communication among the multiple transmission points, panels, beams, nodes and a device are provided. Particularly, methods for transmitting and receiving an uplink channel in a wireless communication system, can include receiving configuration information related to PUCCH power control, on the basis of the configuration information configuring first information for PUCCH power control associated with a first node and second information for PUCCH power control associated with a second node, receiving DCI, which is associated with a TPC command, including a first bit field that corresponds to the first information and a second bit field that corresponds to the second information, and determining the transmission power of a PUCCH on the basis of the first information, the second information, and the DCI.

A user equipment (UE) is configured to provide a power headroom report (PHR) to a network. The UE receives a physical uplink shared channel (PUSCH) configuration from a base station of the wireless network, wherein the PUSCH configuration includes a plurality of beams over which PUSCH repetitions should be transmitted, determines at least one power headroom report (PHR) based on a power control parameter set corresponding to at least one of the plurality of beams or PUSCH repetitions and transmits the at least one PHR to the base station.