A wireless device receives configuration parameters associated with a cell. The wireless device receives an activation command indicating activation of a transmission configuration indicator (TCI) state having a downlink reference signal, the command indicating activation of the TCI state for a control resource set (coreset). The wireless device receives downlink control information (DCI) indicating uplink resources of a time slot of an active uplink bandwidth part of the cell, where a sounding reference signal resource indicator field is absent in the DCI. The wireless device transmits, via the uplink resources, an uplink signal with a transmission power determined based on the reference signal, the transmitting being in response to a parameter enabling a default pathloss reference signal determination and the uplink resources occurring after a predetermined number of measurement samples of the downlink reference signal is obtained.

Method, systems and devices for determining spatial relation and power control parameter for uplink signals. The method for use in a wireless terminal comprises determining at least one of at least one power control parameter or spatial relation for a first uplink signal on a first component carrier, and transmitting, to a wireless network node, the first uplink signal on the first component carrier based on at least one of determined at least one power control parameter or determined spatial relation.

A communication device according to one aspect of the present disclosure includes an acquisition unit, a calculation unit, and a radio wave communication unit. The acquisition unit acquires a position of a reference point provided in a region related to a first wireless system and a limit value of an interference quantity at the reference point. The calculation unit calculates, on the basis of at least the position and the limit value, allowable power by which an interference quantity of a radio wave transmitted by beamforming at the reference point is equal to or less than the limit value. The radio wave communication unit that transmits a radio wave having a frequency within a second frequency band partially or entirely overlapping with a first frequency band allocated to the first wireless system by beamforming with power equal to or less than the allowable power.

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may determine that a maximum permissible exposure (MPE) condition is satisfied for the UE; transmit, to abase station, a message based at least in part on determining that the MPE condition is satisfied; and transmit, to the base station based at least in part on the MPE condition being satisfied, beam information indicating an updated transmit beam for the UE. Numerous other aspects are provided.

Disclosed are methods for adjusting cell coverage of a multimedia broadcast multicast service. An example method (700) may include transmitting (701) data of a multimedia broadcast multicast service on a point-to-multipoint channel, monitoring (702) an uplink channel for information on an abnormal reception of the data, and adjusting (703) coverage of the point-to-multipoint channel based on the monitoring. Related apparatuses and computer readable media are also disclosed.

Methods, systems, and devices for wireless communications are described. A user equipment (UE) may transmit, to a base station, control signaling indicating a capability of the UE to apply an amplitude control procedure to one or more antenna elements for beamforming and indicating that the UE is applying the amplitude control procedure. The UE may receive a control message scheduling transmission of an uplink message. The UE may generate a signal including the uplink message using the amplitude control procedure, which may adjust one or more amplitudes of the signal. The UE may transmit the signal via the one or more antenna elements. In some cases, UE may indicate an amount of power loss in the signal based on the amplitude control procedure, and the base station may transmit downlink transmissions using a lower order modulation and coding scheme or an applied power boost to compensate for the power loss.

A near-field test system for a phased array antenna includes a probe, a beam forming network, and a computing system. The probe is disposed at a fixed position in a near-field of the phased array antenna and transmits a test beam toward a fixed location on the phased array. The beam forming network is coupled to the phased array and includes a plurality of phase shifters and a beam summer. The phase shifters steer received beams for each antenna element of the phased array to form a planar wave front. The beam summer is coupled to the phase shifters and combines power of the received beams. The computing system is coupled to the beam forming network and scales combined power of the received beams and generates a virtual spectrum for the phased array antenna from scaled power of the received beams.

A method and information handling system (IHS) for dynamic multiple antenna sensor and wireless power management for multiple radio types and multiple wireless configurations comprise enabling, by an antenna controller (AC), a proximity sensor (P-sensor) connected interrupt to be generated by a P-sensor; upon activation of the P-sensor connected interrupt, determining, at the AC, a reason for the P-sensor connected interrupt; when the reason is a steady-state detection event, calibrating, by the AC, the P-sensor; when the reason is a proximity detection event, storing, by the AC, a radio transmit power lookup table, the radio transmit power lookup table mapping a P-sensor channel, an antenna subsystem physical configuration value, and an IHS physical configuration usage mode value to a radio transmit power level value; and configuring, at a radio, the radio to operate at a radio transmit power level corresponding to the radio transmit power level value.

An information handling system includes an antenna controller that may receive, from a platform sensor, platform sensor information as to a physical configuration usage mode, and receive, from a proximity sensor, information as to a part of a body of a user to an antenna. The antenna controller may also obtain a radio transmit power level value corresponding to the platform sensor information and to the proximity sensing information, send the radio transmit power level value to a radio via a serial interface, and reconfigure the antenna in response to the platform sensor information and the proximity sensing information. A radio may adjust a radio transmit power level to an adjusted radio transmit power level based on the radio transmit power level value.

There are provided mechanisms for beam forming using an antenna array comprising dual polarized elements. A method comprises generating one or two beam ports. The one or two beam ports are defined by combining at least two non-overlapping subarrays. Each subarray has two subarray ports. The two subarray ports have identical power patterns and mutually orthogonal polarizations. The at least two non-overlapping subarrays are combined via expansion weights. The expansion weights and map the one or two beam ports to subarray ports such that the one or two beam ports have the same power pattern as the subarrays. At least some of the expansion weights have identical non-zero magnitude and are related in phase to form a transmission lobe. The method comprises transmitting signals using said one or two beam ports.