Abstract: Certain aspects of the present disclosure provide apparatus and methods for emulating the Alamouti structure or a similar space-time block code using a single RF chain. A UE may include a RF chain, at least one switching circuit, at least one analog modulator circuit, and a first and second antenna. The output of a RF chain may be coupled to an input of a switching circuit, the output of the switching circuit may be coupled to an input of a first analog modulator circuit, and the output of the first analog modulator circuit coupled to a first and second antenna. A hybrid coupler is one example of an analog modulator circuit.

Abstract: Certain aspects of the present disclosure provide apparatus and methods for emulating the Alamouti structure or a similar space-time block code using a single RF chain. A UE may include a RF chain, at least one switching circuit, at least one analog modulator circuit, and a first and second antenna. The output of a RF chain may be coupled to an input of a switching circuit, the output of the switching circuit may be coupled to an input of a first analog modulator circuit, and the output of the first analog modulator circuit coupled to a first and second antenna. A hybrid coupler is one example of an analog modulator circuit.

Abstract: Methods, systems, apparatuses, and devices are described for transmitting a measurement report during wireless communications. When, for example, a low-power period (e.g., CDRX OFF period) is scheduled to begin during a time defined by a measurement event timer (TTT timer), a UE may modify the low-power period. The low-power period may be modified based, at least in part on determining the low-power period of the UE will begin during a time defined by a measurement event timer, a duration of the measurement event timer, and a duration of the low-power period. Modifying the low-power period may include delaying the start of the low-power state until after transmission of the MR associated with the measurement event timer or skipping the low-power period altogether. The UE may transmit the MR based, at least in part, on the modification.

Abstract: This disclosure provides a device and method for tuning multiple-in multiple-out (MIMO) antennas. The method can include determining a plurality of subband spectral efficiency values related to the MIMO antennas. The method can also include determining a wideband spectral efficiency by averaging the plurality of subband spectral efficiency values. The method can also include filtering the wideband spectral efficiency using an infinite impulse response (IIR) filter to determine an IIR filtered wideband spectral efficiency. The method can also include determining a cost function based on a maximum value of the IIR filtered wideband spectral efficiency. The method can also include tuning the MIMO antennas based at least in part on the cost function.

Abstract: Methods, systems, apparatuses, and devices are described for transmitting a measurement report during wireless communications. When, for example, a low-power period (e.g., CDRX OFF period) is scheduled to begin during a time defined by a measurement event timer (TTT timer), a UE may modify the low-power period. The low-power period may be modified based, at least in part on determining the low-power period of the UE will begin during a time defined by a measurement event timer, a duration of the measurement event timer, and a duration of the low-power period. Modifying the low-power period may include delaying the start of the low-power state until after transmission of the MR associated with the measurement event timer or skipping the low-power period altogether. The UE may transmit the MR based, at least in part, on the modification.