Abstract: A holographic surface transmission scheme selection method includes: obtaining, at an apparatus, a desired signal direction relative to one or more holographic surfaces, comprising a plurality of antenna elements, of the apparatus; and transmitting, based on the desired signal direction and a layout of a plurality of energy couplers relative to the one or more holographic surfaces, one or more transmit signals via the one or more holographic surfaces in the desired signal direction either from a combination of energy couplers of the plurality of energy couplers coupled to respective locations of the one or more holographic surfaces, or from a selected one of the plurality of energy couplers.

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive configuration information that specifies one or more parameters associated with generating, by the UE, a time domain covariance matrix specific to the UE. The UE may receive a channel state information (CSI) reference signal (CSI-RS). The UE may transmit, based at least in part on the CSI-RS and the one or more parameters, a CSI report, the CSI report including data representing the time domain covariance matrix. Numerous other aspects are described.

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive a downlink control information (DCI) comprising a grant scheduling a data transmission for the UE, the data transmission associated with a rateless coding scheme. The UE may determine to disable feedback information for the data transmission based at least in part on the rateless coding scheme and one or more of: the DCI, a resource associated with the DCI, or a semi-persistent scheduling configuration associated with the data transmission. The UE may perform or monitor for the data transmission according to the DCI and the rateless coding scheme. The UE may perform or monitor for the feedback information for the data transmission according to the determining.

Abstract: Methods, systems, and devices for wireless communications are described. A communication device, which may be a user equipment (UE), may receive a message including an indication of a set of demodulation reference signal (DMRS) candidates for a data channel. The data channel may be a physical downlink shared channel (PDSCH) or a physical uplink shared channel (PUSCH) in some examples. The UE may determine a set of parameters associated with the set of DMRS candidates based on the received message. The set of parameters may correspond to a radio frequency spectrum subband or a radio frequency spectrum band associated with the data channel. The UE may estimate one or more characteristics of the data channel using the set of parameters associated with the set of DMRS candidates to perform wireless communication (e.g., PDSCH reception, PUSCH transmission).

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive, from a base station, a first indication that the UE is within a distance threshold (e.g., in the near field) of multiple-in multiple-out (MIMO) communications from the base station. The UE may communicate with the base station via signaling including a second indication of antenna panel information of at least one of the UE or the base station, the communication based on the UE being within the distance threshold. The UE may receive, from the base station, a first beamformed signal on one or more first beams within the distance threshold, and the UE may receive, from the base station, one or more second beamformed signals on a second beam within the distance threshold, the second beam based on a channel response matrix that is estimated from the second indication and the first beamformed signal.

Abstract: Certain aspects of the present disclosure provide a method of wireless communications by a user equipment (UE), generally including receiving signaling, from a network entity, indicating at least a first channel state information (CSI) reference signal (CSI-RS) pattern indicating CSI-RS resources, wherein the first CSI-RS pattern indicates a lower density of CSI-RS resources in a channel frequency range, than a second CSI-RS pattern; updating a machine learning (ML) model based on the first CSI-RS pattern; generating, using the updated ML model, CSI for the channel frequency range based on measurements taken by the UE according to the first CSI-RS pattern; and transmitting a report to the network entity indicating the CSI for the channel frequency range.

Abstract: Methods, systems, and devices for wireless communication are described. A first wireless device may transmit one or more signals to a second wireless device using an antenna panel including antenna elements that are arranged in a hexagonal configuration. The signals may be transmitted using one or more directional beams for multiple-input multiple-output communications with the second wireless device, the directional beams generated based on the antenna elements in the hexagonal configuration. The first wireless device may receive a signal from the second wireless device, and in some cases, the first wireless device may transmit one or more reference signals via the one or more directional beams, the reference signals associated with a set of two or more antenna elements of the antenna panel of the first wireless device. The second wireless device may perform measurements of the reference signals and transmit a measurement report to the first wireless device.

Abstract: Provided are a lane line detection method, an autonomous mobile device, and a storage medium. In the lane line detection method, an original image captured by a camera of the autonomous mobile device is acquired, and an ab-channel-based gradient image is calculated according to the original image. Line segments located on edges of lane lines are extracted from the ab-channel-based gradient image, to obtain multiple original line segments. Collinear line segments among the multiple original line segments are cascaded in an iterative manner, to obtain multiple cascaded line segments. Multiple candidate lane lines are generated from the multiple cascaded line segments. Collinear candidate lane lines of the multiple cascaded line segments are merged to obtain lane lines in the original image.

Abstract: Aspects of the disclosure relate to the generation of channel state reports and precoding a wireless transmission based on frequency division duplex (FDD) reciprocity. A base station (BS) uses at least two precoders to transmit signals to A user equipment (UE). The UE generates a set of channel state reports, in which the UE transmits a first set of channel coefficients using a first timing, a set of port attributes using a second timing, and a second set of channel coefficients using a third timing. The first set of channel coefficients correspond to a first precoded portion of the wireless transmission, and the set of port attributes and the second set of channel coefficients correspond to a second portion of the wireless transmission. The BS modifies at least one of the precoders based on the channel state reports. Other aspects, embodiments, and features are also claimed and described.

Abstract: A method for reporting information, a method for indicating information, a terminal device, and a network device are disclosed. The method for reporting information is applied to a terminal device and includes: receiving indication information from a network device, where the indication information is used to indicate the terminal device to report phase information of at least one target path corresponding to a downlink channel; and reporting the phase information of at least one target path to the network device according to the indication information.

Abstract: A network node may transmit a positioning reference signal (PRS) configuration that indicates a set of non-uniform patterns in a frequency domain for a set of PRSs. A user equipment (UE) may receive the PRS configuration that indicates the set of non-uniform patterns in the frequency domain for the set of PRSs. The network node may transmit the set of PRSs based on the PRS configuration. Each PRS of the set of PRSs may be associated with a corresponding non-uniform pattern of the set of non-uniform patterns in the frequency domain. The UE may receive the set of PRSs based on the PRS configuration. The UE may measure each PRS of the set of PRSs based on the corresponding non-uniform pattern of the set of non-uniform patterns in the frequency domain.

Abstract: Methods, systems, and devices for wireless communications are described. A receiving device may receive, from a transmitting device, a configuration indicating a set of orbital angular momentum (OAM) modes for joint reporting, where at least one of the set of OAM modes is associated with transmission via two or more of a plurality of sets of antennas arranged in a set of concentric circular arrays. The receiving device may transmit, to the transmitting device, a report indicating precoding information for each of at least a subset of the set of OAM modes, where the precoding information includes one or more first parameters common to the set of OAM modes and one or more second parameters for respective ones of the at least the subset of the set of OAM modes.

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may determine a transport block size based at least in part on a set of physical uplink shared channel resources corresponding to a set of physical uplink shared channel repetitions that are indicated to be transmitted over at least one repetition unit in accordance with a frequency hopping pattern and at least one code block mapping order corresponding to the at least one repetition unit. The UE may transmit the set of physical uplink shared channel repetitions based at least in part on the transport block size. Numerous other aspects are provided.

Abstract: Certain aspects of the present application relate to techniques for configuring and/or performing channel state information-reference signal (CSI-RS) resource aggregation. For example, the techniques described herein enable multiple resource mappings within a single CSI-RS resource. These multiple mappings may facilitate the aggregation of a greater number of CSI-RS resources, thereby supporting a larger number of CSI-RS ports. A user equipment (UE) may then perform CSI measurements using this expanded set of CSI-RS ports.

Abstract: Methods, systems, and devices for wireless communications are described. Techniques described my support dedicated codebooks for sparse antenna arrays, and channel state information (CSI) reporting procedures with reduced overhead. Precoding matrix indicator (PMI) reporting (e.g., in a CSI report) may be based on such dedicated codebook structures. For a CSI report for sparse antenna arrays, each precoding vector for each transmission layer may be constructed from two sub-vectors. Each sub-vector may include an overlapping entry (e.g., one entry in the first sub-vector is the same as one entry in the other sub-vector). Each sub-vector may correspond to an antenna subarray. The overlapping entry may correspond to a same antenna element in both of the two subarrays. The network may provide a UE with an indication of a sparse codebook type, and one or more parameter values for the sparse codebook type.

Abstract: A UE measures multiple occasions of CSI-RS. The UE also transmits, at a first stage, a first coefficient selection bitmap for CSI based on measurement of the CSI-RS and associated with a first domain and a second domain, first the coefficient selection bitmap indicating locations of NZCs. In one aspect, the UE further transmits, at a second stage, a second coefficient selection bitmap indicating, for each NZC location indicated in the first coefficient selection bitmap, a corresponding NZC location in a time domain. In another aspect, the UE further transmits, at a second stage, a second coefficient selection bitmap indicating, for each subset in each time domain basis of a three-dimensional bitmap and that is associated with one of a first domain or a second domain, whether an NZC is located in the subset.

Abstract: Certain aspects of the present disclosure provide techniques for determining coefficients for a codebook to use for coherent joint transmission (CJT) by multiple transmission and reception points (TRPs) transmitting with a same transmit power per TRP. A method that may be performed by a user equipment (UE) includes receiving configuration information indicating resources associated with at least two transmission reception points (TRPs) with which the UE is configured to communicate using a codebook structure with a matrix of coefficients shared between the at least two TRPs; measuring channel state information (CSI) reference signals (CSI-RSs) from the at least two TRPs according to the configuration information; and transmitting a report with coefficients for the matrix of coefficients shared between the at least two TRPs.

Abstract: Certain aspects of the present disclosure provide a method of wireless communications by a user equipment (UE). The method includes receiving configuration information indicating resources for a set of transmission reception points (TRPs); selecting a codepoint from a set of codepoints based at least in part on a quantity of TRPs in the set of TRPs and a total quantity of SD bases for the set of TRPs, the codepoint indicating a quantity of spatial domain (SD) bases selected by the UE for each TRP of the set of TRPs; and transmitting channel state information (CSI) signaling that includes an indication of the codepoint that indicates the quantity of SD bases for each TRP.

Abstract: This disclosure provides systems, methods, and devices for wireless communication that support Doppler offset reporting for coherent joint-transmission (CJT) communications. In a first aspect, a method of wireless communication includes measurement by a user equipment (UE) of a Doppler offset indication for each cooperative transmission-reception point (TRP) of multiple TRPs in CJT communications with the UE. The UE would report the Doppler offset indication to the serving TRP, which forwards the Doppler offset indication to each corresponding cooperative TRP. Each cooperative TRP may then use the Doppler offset indication to adjust downlink CJT communications with the UE. Other aspects and features are also claimed and described.

Abstract: Apparatuses and methods for CSI report starting location and window configuration are described. An apparatus is configured to receive information associated with a time window, which includes at least an offset from a start location and a window size, for a CSI report. The apparatus is configured to transmit the CSI report at the offset from the start location and for the window size of the time window. The CSI report includes CSI for a codebook refinement. Another apparatus is configured to transmit information associated with a time window, which includes at least an offset from a start location and a window size, for a CSI report. The other apparatus is configured to receive the CSI report at the offset from the start location and for the window size of the time window The CSI report includes CSI for a codebook refinement.