Abstract: Certain aspects of the present disclosure provide techniques for channel raster design. A method for wireless communications by a network entity includes determining a channel raster comprising a subset of radio frequency (RF) reference frequencies separated by a channel raster granularity, wherein the channel raster granularity is less than 100 kHz and outputting an indication of one or more of the RF reference frequencies to one or more user equipments (UEs).

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive, from a base station, information that identifies an association between a first cell of a first radio access technology (RAT) and a second cell of a second RAT. The UE may perform a measurement for the first cell. The UE may determine that the measurement for the first cell satisfies a threshold value. The UE may perform an interference canceling operation for a reference signal of the second cell, or a de-weighting operation for one or more resource elements in which the reference signal interferes, based at least in part on the determination that the measurement for the first cell satisfies the threshold value and the association between the first cell and the second cell. Numerous other aspects are described.

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may transmit a UE capability message, the UE capability message indicating a supported transmit antenna switching (TxAS) capability for each port of the UE. The UE may receive a configuration message indicating an uplink multiple-input/multiple-output (UL MIMO) configuration for the UE, the UL MIMO configuration being based at least in part on the UE capability message. The UE may identify, based at least in part on the configuration message, a sounding reference signal (SRS) configuration to use for transmitting SRSs in conjunction with the UL MIMO communications, the SRS configuration comprising a configuration for transmission by the UE of SRSs using at least one of the two or more ports of the UE, the SRSs transmitted on one or more antennas of the UE selected according to a TxAS configuration for the respective port.

Abstract: Aspects are provided that allow a user equipment (UE) to facilitate interference measurements configuration for assessing impact of network entity backoff adaptation relaxation. The UE may obtain interference measurements of one or more first reference signals including a measurement prior to and after a backoff adaptation associated with a first network entity, and signal strength measurements of a second reference signal received from the first network entity. The UE also may send, to a second network entity of a serving cell, an interference report indicating whether downlink interference originates from the first network entity based at least in part on the interference measurements and the signal strength measurements. After obtaining the report, the second network entity may send, to the first network entity, a feedback signal indicating whether the first network entity is to modify the backoff adaptation based on the downlink interference to the UE.

Abstract: Aspects described herein relate to concurrently communicating with a base station over multiple frequency bands using a same first beam, and switching, according to beam switching criteria, from the first beam to a second beam during a time period, wherein the time period is based on a timing reference associated with a reference band.

Abstract: Aspects of the disclosure provide techniques and apparatuses for improving reception of concurrent transmissions from different network entities. A user equipment may receive a first instance of a transmission in a first component carrier from a first network entity and also receive a second instance of the transmission in a second component carrier from a second network entity. The UE may then dynamically adjust a number of receivers used for the reception of the first component carrier and the reception of the second component carrier based on whether a receive time difference, between receipt of the first instance of the transmission and receipt of the second instance of the transmission, exceeds a maximum receive time difference (e.g., a cyclic prefix duration of the transmission).

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive, from a base station, information that identifies an association between a first cell of a first radio access technology (RAT) and a second cell of a second RAT. The UE may perform a measurement for the first cell. The UE may determine that the measurement for the first cell satisfies a threshold value. The UE may perform an interference canceling operation for a reference signal of the second cell, or a de-weighting operation for one or more resource elements in which the reference signal interferes, based at least in part on the determination that the measurement for the first cell satisfies the threshold value and the association between the first cell and the second cell. Numerous other aspects are described.

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment may receive an indication of a single reference signal to use for determining timing information for measuring multiple reference signals from multiple cells on a common frequency layer; and measure the multiple reference signals based at least in part on the timing information. Numerous other aspects are provided.

Abstract: Aspects of the disclosure relate to a wireless user equipment (UE) establishing and utilizing a reference timing for a carrier or cell with multiple transmission and reception points (TRPs). A UE may receive a downlink signal on each of a plurality of component carriers (CCs), and determine respective timing events (e.g., slot boundaries, subframe boundaries, etc.) corresponding to each of the plurality of CCs. The UE may then determine a reference time for a first CC of the plurality of CCs. This reference time corresponds to a function of two or more timing events corresponding to different TRPs utilizing the first CC. The UE then determines a relative timing difference between the plurality of CCs based on this determined reference time. Other aspects, embodiments, and features are also claimed and described, including determining and utilizing a reference time on an uplink CC.

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may transmit a UE capability message, the UE capability message indicating a supported transmit antenna switching (TxAS) capability for each port of the UE. The UE may receive a configuration message indicating an uplink multiple-input/multiple-output (UL MIMO) configuration for the UE, the UL MIMO configuration being based at least in part on the UE capability message. The UE may identify, based at least in part on the configuration message, a sounding reference signal (SRS) configuration to use for transmitting SRSs in conjunction with the UL MIMO communications, the SRS configuration comprising a configuration for transmission by the UE of SRSs using at least one of the two or more ports of the UE, the SRSs transmitted on one or more antennas of the UE selected according to a TxAS configuration for the respective port.

Abstract: In an aspect, the present disclosure includes a method, apparatus, and computer readable medium for wireless communications for determining, by a user equipment (UE), an evaluation time period based on a number of a plurality of reference signals that are quasi-co-located (QCL) within one or more measurement windows; measuring, by the UE, a signal quality value of one or more of reference signals within the evaluation time period; and determining, by the UE, whether the signal quality value of one or more of reference signals within the evaluation time period crosses an evaluation threshold.

Abstract: Various designs for optimization of carrier aggregation (CA) capability signaling are discussed. A user equipment (UE) configured for CA determines to signal supported CA combinations that include a band, the band being one of a first band and a second band. The first band is a superset of the second band. The UE signals the supported CA combinations that include the band to the network. A base station receives a signal indicating the CA combinations supported by the UE that include the band. The base station determines CA combinations that include the first band and CA combinations that include the second band based on the CA combinations received from the UE.

Abstract: Aspects of the present disclosure relate to wireless communications, and more particularly, to techniques and devices for uplink gap configuration and determination of uplink resources after uplink gap distribution. Certain aspects are directed to an apparatus for wireless communications at a user equipment (UE). The UE may include a memory comprising instructions, and one or more processors configured to execute the instructions. In some examples, the instructions may cause the apparatus to obtain, from a base station, an uplink gap pattern (ULGP) configuration indicating a first ULGP associated with a first time window, wherein the first ULGP is indicative of a distribution of one or more uplink slots activated as uplink gaps within the first time window, and wherein the one or more uplink slots are independent from being used for any transmission initiated by the apparatus.

Abstract: Aspects of the present disclosure relate to wireless communications, and more particularly, to techniques and devices for uplink gap configuration. Certain aspects are directed to an apparatus for wireless communications at a user equipment (UE). The UE may include a memory comprising instructions, and one or more processors configured to execute the instructions. In some examples, the instructions may cause the apparatus to obtain, from a base station, a first time division duplex (TDD) configuration for wireless communications between the UE and the base station. The instructions may cause the apparatus to obtain, from the base station, an uplink gap pattern (ULGP) configuration indicating a first ULGP associated with a first time window and the first TDD.

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may determine a receive time difference (RTD) between a first base station and a second base station based at least in part on the UE using a common beam to receive transmissions from the first base station and the second base station. The UE may transmit information indicating the RTD between the first base station and the second base station, wherein the transmissions from the first base station and the second base station may be scheduled based at least in part on the RTD between the first base station and the second base station. Numerous other aspects are provided.

Abstract: Wireless communications systems and methods related to over-the-air (OTA) channel equalization in millimeter wave mmWave) testing are provided. An apparatus transmits, to a wireless communication device positioned within an over-the-air (OTA) space, one or more reference signals. The apparatus receives, from the wireless communication device, channel state information in response to the one or more reference signals. The apparatus determines a channel estimate for the OTA space based on the received channel state information. The apparatus transmits, to the wireless communication device, a communication signal based on a reference channel and the channel estimate for the OTA space.

Abstract: Methods, systems, and devices for wireless communications are described. In some systems, a user equipment (UE) may perform a calibration to improve the accuracy, reliability, or both of signal transmissions. The UE may determine timing for the calibration procedure based on a received identifier for the UE (e.g., a radio network temporary identifier (RNTI), such as a cell RNTI (C-RNTI)). For example, the UE may determine a calibration offset between a reference time and a calibration gap according to an equation using at least the identifier as input. During the calibration gap, the UE may transmit a calibration signal using one or more antenna ports and may calibrate (e.g., adjust power amplification for) the one or more antenna ports based on an estimated actual transmit power for the calibration signal (e.g., received by other antenna ports of the UE or received by another device).

Abstract: Certain aspects of the present disclosure provide techniques for signaling and scheduling to enable network configured small gaps in intra-band inter-frequency measurement. A method that may be performed by a user equipment (UE) includes receiving, from a serving cell operating on a first frequency, an indication that synchronization signal block (SSB) indexes of a target cell operating on a second frequency can be derived from timing of the serving cell; and deriving an SSB index of the target cell, based on the timing of the serving cell.

Abstract: A configuration to enable a UE to switch beams of respective CCs based on certain factors (e.g., RTD or TCI states), and not switch the beams simultaneously. The apparatus receives, from a base station, a transmission including an indication to change at least one of a TCI state for multiple CCs, a spatial relation for the multiple CCs, or a PL RS for the multiple CCs. The apparatus switches beams in response to the transmission, where timing of the switching is based on a grouping of the multiple CCs.

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may determine a scaling factor for a beam failure detection (BFD) evaluation period associated with a secondary cell group of a set of secondary cell groups. The scaling factor may be determined based at least in part on a number of secondary cell groups included in the set of secondary cell groups. In some aspects, the UE may perform a BFD measurement, associated with the secondary cell group, based at least in part on the scaling factor for the BFD evaluation period. Numerous other aspects are provided.