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.

Abstract: Methods, systems, and devices for large-bandwidth reconfigurable intelligent surface communication (RIS) are described. A network entity (NE) may transmit a first control message to the RIS indicating a frequency and a bandwidth for a carrier of a communication signal to be used to communicate with one or more users. The RIS may transmit to the NE a second control message identifying a quantity for multiple frequency domain segments for the bandwidth of the communication signal. The NE may then communicate a communication signal with the one or more users via the RIS, for each frequency domain segment of the multiple frequency domain segments, on the frequency domain segment during a time occasion of multiple time occasions, each time occasion of the multiple time occasions corresponding to a respective frequency domain segment of the multiple frequency domain segments.

Abstract: Certain aspects of the present disclosure provide a method for wireless communications at a user equipment (UE), generally including receiving signaling configuring the UE to report time correlation for multiple lags of reference signals (RS), wherein each lag represents a separation in time between reference signals measured for time correlation and reporting time correlation for a subset of the multiple configured lags.

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 configured to be transmitted over at least one repetition unit comprising at least one nominal repetition and at least one actual repetition. 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: Methods, systems, and devices for operating a wireless device are described. A wireless device may include, according to a non-zero coefficient (NZC) splitting rule and in a first portion of a channel state information (CSI) report corresponding to a plurality of transmission-reception points (TRPs), first NZC information for a first set of TRPs, the first portion associated with a first priority level. The wireless device may include, according to the NZC splitting rule and in a second portion of the CSI report, second NZC information for a second set of TRPs, the second portion associated with a second priority level. The wireless device may include, in the CSI report and according to an additional channel state information splitting rule, additional channel state information for the plurality of TRPs.

Abstract: Aspects of the present disclosure provide techniques for determining frequency hopping for physical uplink shared channel (PUSCH) repetitions sent using multiple frequency domain resource allocations (FDRAs). According to certain aspects, a user equipment (UE) determines at least first and second part frequency domain resource allocations (FDRAs) for a first physical uplink shared channel (PUSCH) transmission occasion, transmits a transport block (TB) via at least first and second parts of a physical uplink shared channel (PUSCH) on the first and second part FDRAs with first and second precoders during the first PUSCH transmission occasion, determines at least first and second part FDRAs for a second PUSCH transmission occasion based on a frequency hopping scheme, and transmits the same TB via first and second parts of the PUSCH on the determined first and second part FDRAs with first and second precoders during the second PUSCH transmission occasion.

Abstract: In an aspect, a wireless node (e.g., UE or BS) measures, at a first hop of a frequency hopping scheme, a reference signal (RS) on a first sub-band of an effective RS bandwidth, and measures, at a second hop of the frequency hopping scheme, the RS on a second sub-band of the effective RS bandwidth, the first and second sub-bands of the effective RS bandwidth overlapping in part. In another aspect, a UE transmits, at a first hop of a frequency hopping scheme, a reference signal (RS) on a first sub-band of an effective RS bandwidth, and transmits, at a second hop of the frequency hopping scheme, the RS on a second sub-band of the effective RS bandwidth, the first and second sub-bands of the effective RS bandwidth overlapping in part.

Abstract: Methods, systems, and devices for wireless communications are described. A base station may transmit one or more synchronization signal blocks (SSBs), each SSB including a system information block (SIB), to one or more user equipments (UEs). A UE of the one or more UEs may select an SSB with a corresponding SSB index for receiving a SIB and subsequently a multicast transmission from the base station. The multicast transmission may include transmitting a multicast control channel, a multicast traffic channel, or both. The SIB may include one or more parameters for receiving the multicast transmission. The UE may identify one or more monitoring occasions for monitoring a physical downlink control channel for scheduling the multicast transmission based on the SSB index. The UE may receive the multicast transmission in accordance with the one or more parameters from the physical downlink control channel during the one or more monitoring occasions.

Abstract: This disclosure provides systems, methods, and devices for wireless communication that support coherent joint transmission (CJT) channel state information (CSI) reporting with frequency domain (FD) compensation at a finer than subband size level. In a first aspect, a method of wireless communication includes a user equipment (UE) determining a plurality of CSI parameters for a set of N TRP transmission-reception points (TRPs). The UE may identify a reference TRP, calculate FD compensation for each FD compensation unit to compensate a precoder to each non-reference TRP and corresponds to a delay difference between the each non-reference TRP and the reference TRP. The UE then transmits a CSI report including the FD compensated precoder for each FD compensation unit, wherein the CSI report includes the precoder applicable to a total number of reported TRPs fewer than NTRP?1. Other aspects and features are also claimed and described.