Certain aspects of the present disclosure provide techniques for wireless communications by a user equipment (UE). The UE implements the technique to transmit to a network entity a report that includes an indication of a desired demodulator or precoding per precoding resource block group (PRG) for a group of one or more PRGs. The UE then demodulates downlink (DL) transmissions, transmitted from the network entity on the group of one or more PRGs, in accordance with the indication included in the report.

One example includes a phased-array antenna system (10). The system includes antenna elements (16) each including an element adjustment circuit (24) and a radiating element (114). A beamforming network (14) receives a carrier signal and generates element carrier signals. A baseband DSP (22) generates a plurality of composite beamforming data signals associated with a respective one of the antenna elements (16) and is generated based on combining individual beamforming data signals. Each of the individual beamforming data signals is associated with a respective beam and is based on combining a data signal associated with the respective beam with an antenna weight associated with the respective beam and the respective one of the antenna elements (16). The element adjustment circuit (24) modulates the associated composite beamforming data signal onto the respective element carrier signal to generate a respective element signal that is provided to the respective radiating element (114), such that the beams are generated from the antenna elements (16).

Pre-coding methods are disclosed for a transmitter node and for a receiver node, respectively. The transmitter node and/or the receiver node comprises at least one hardware component causing signal distortion for a forward channel and/or a reverse channel Transmitter node reference signals are transmitted by the transmitter node and received by the receiver node, wherein the transmitter node reference signals result from use of a transmitter node transmission pre-coding setting and an allocated transmission power. The receiver node estimates a forward channel disturbance component (including the signal distortion for the forward channel), selects a receiver node reception pre-coding setting based on the estimated forward channel disturbance component, and updates a receiver node transmission pre-coding setting by using the selected receiver node reception pre-coding setting as receiver node transmission pre-coding setting. Receiver node reference signals are transmitted by the receiver node and received by the transmitter node, wherein the receiver node reference signals result from use of the updated receiver node transmission pre-coding setting. The transmitter node estimates a reverse channel disturbance component (including the signal distortion for the reverse channel), selects a transmitter node reception pre-coding setting based on the estimated reverse channel disturbance component, and updates the transmitter node transmission pre-coding setting by using the selected transmitter node reception pre-coding setting as transmitter node transmission pre-coding setting. Corresponding pre-coding apparatuses, transmitter/receiver nodes, and computer program product are also disclosed.

A wireless device may increment a beam failure instance counter based on detecting a first beam failure instance associated with one or more first reference signals, RSs, for beam failure detection. The wireless device may receive a medium access control control element, MAC CE, activating one or more second RSs for beam failure detection. The wireless device may resetting the beam failure instance counter in response to receiving the MAC CE. increment the beam failure instance counter based on detecting a second beam failure instance associated with the one or more second RSs. The wireless device may initiate a beam failure recovery based on the beam failure instance counter being equal to or greater than a first value.

An antenna system for a moving vehicle, the antenna system comprising: a main antenna to generate a main beam; a measurement antenna to generate a measurement beam; and control circuitry to perform an adjustment process by: rotating the main beam to an initial bearing angle; rotating the measurement beam independently of the main beam to receive signals at positions to either side of the initial bearing angle; comparing at least one metric measured for the signals received by the measurement antenna at the positions to either side of the initial bearing angle to generate a comparison output; and determining, based on the comparison output, a correction to be applied to the initial bearing angle of the main beam.

A wireless communication device includes a plurality of antenna modules at different positions, a first radio frequency (RF) integrated circuit, and processing circuitry configured to select one antenna module from among the plurality of antenna modules to obtain a selected antenna module, perform communication using the selected antenna module and the first RF integrated circuit, monitor signal quality through at least one of the plurality of antenna modules to obtain a monitoring result, and control switching from the selected antenna module to another antenna module among the plurality of antenna modules based on the monitoring result, the switching including selectively switching a connection of the first RF integrated circuit from the selected antenna module to the other antenna module.

Systems and methods disclosed herein use channel state information (CSI) reports from a user equipment (UE) having additional CSI beyond CSI directly derived according to a current MIMO configuration between a base station and the UE. In some embodiments, a channel quality indicator (CQI) according to a selected layer of a plurality of layers used to receive the MIMO transmission as determined relative to the MIMO transmission is reported. In some embodiments, a precoding matrix indicator (PMI) according to a selected layer of a plurality of layers useable to receive rank 1 transmissions is reported along with a CQI determined according to that layer, or according to a layer used to receive the MIMO transmission as determined relative to the MIMO transmission. In some embodiments, a base station configures a UE to report more fulsome CSI according to each of a plurality of ranks.

An electronic device and methods for performing low-latency, low-power beam management are disclosed herein. An electronic device for performing low-latency, low-power beam management comprises a plurality of antenna modules and a processor. The processor is configured to determine a number of active antenna modules to include in a set of active antenna modules, and select the set of active antenna modules, from among the plurality of antenna modules, based on a spherical coverage of the set of active antenna modules and based on information on blockage states of the plurality of antenna modules.

The present disclosure relates to method and apparatus for multiple panel and/or multiple beam codebook based PUSCH transmissions. The method includes receiving, at a User Equipment (UE), Downlink Control Information (DCI) including two or more sets of parameters; and performing codebook based Physical Uplink Shared Channel (PUSCH) transmission for transmitting the two or more codewords according to the two or more sets of parameters, respectively; wherein each of the two or more sets of parameters includes at least one of a Sounding Reference Signal Resource Indicator (SRI), a Transmitted Precoding Matrix Indicator (TPMI), a Modulation Coding Scheme (MCS), a New Data Indicator (NDI) and a Redundancy Version (RV).

Aspects of the subject disclosure may include, for example, obtaining, over an uplink (UL) using an aggregation of modular antenna arrays, a modulated signal that includes feedback transmitted by a user equipment (UE), wherein the aggregation of modular antenna arrays comprises multiple groups of antenna elements, after the obtaining the modulated signal, performing a demodulation of the modulated signal, determining demodulator constellation errors from the demodulation of the modulated signal, performing an error gradient weight adaptation responsive to the determining the demodulator constellation errors to derive revised weights for various antenna elements of the multiple groups of antenna elements, and applying the revised weights to the various antenna elements of the multiple groups of antenna elements to adjust signals received over the UL. Other embodiments are disclosed.