Abstract: Methods, apparatuses, and computer-readable medium are provided for rate matching. An example method may include receiving a rate matching pattern configuration indicating at least a first control resource set (CORESET) in a first bandwidth part (BWP) and a second CORESET in a second BWP. The example method may also include receiving a physical downlink shared channel (PDSCH) in the first BWP. The example method may include processing the PDSCH transmission based on the rate matching pattern configuration, where the processing may include rate matching around resources of the first CORESET and first associated search space (SS) sets and the second CORESET and second associated SS sets.

Abstract: Some examples of the techniques described herein may provide schemes to organize shaped payload bits, non-shaped payload bits, and parity bits to allow an increased quantity of bits to be shaped for enhanced performance. Interleaving may be utilized in some aspects to enhance robustness to burst errors. For instance, interleaving schemes for enhancing bit orderings and interleaving are provided. In some approaches, permutation and row-column interleaving may be performed with a quantity of rows. Some approaches may utilize circular rotation and row-column interleaving with a quantity of rows. In some examples, permutation with alphabet-based row-column interleaving with fixed rows may be performed. Some aspects may include permutation and row-column interleaving with a quantity of rows when punctured columns are shaped. In some approaches for modulation mapping, each set of bits may be mapped to a quadrature amplitude modulation (QAM) symbol.

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a wireless communication device may receive a transmission associated with one or more bits. The wireless communication device may decode the transmission using an average of one or more confidence level values, associated with the one or more bits, over a quantity of the one or more confidence level values and an offset that is based at least in part on the quantity of the one or more confidence level values. Numerous other aspects are described.

Abstract: Methods, systems, and devices for wireless communication are described. A user equipment (UE) receives physical downlink control channels from transmission and reception points (TRPs). The physical downlink control channels may be jointly decoded to facilitate joint demodulation of physical shared channels. The UE receives a first downlink control information (DCI) over a first downlink control channel associated with a first TRP and a second DCI over a second downlink control channel associated with a second TRP. The first downlink control channel overlaps in time with the second downlink control channel. The first DCI schedules a first downlink shared channel associated with the first TRP and the second DCI schedules a second downlink shared channel associated with the second TRP. The UE receives the first downlink shared channel and the second downlink shared channel that overlap in time. The UE performs joint demodulation of the first and second downlink shared channels.

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive, using a particular deployment configuration, two consecutive slots that are assigned to a system information block type 1 (SIB1) of a non-terrestrial network. The UE may process at least one slot of the two consecutive slots using a downlink channel repetition configuration that has a linkage to the particular deployment configuration. Numerous other aspects are described.

Abstract: A receiver receives a wireless transmission and decodes the wireless transmission based on a non-binary polar successive cancellation list (SCL) decoder algorithm in which a path metric (PM) computation uses a maximum approximation based on logarithmic normalized values for random variable probabilities.

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment may receive a first physical downlink control channel (PDCCH) repetition of a PDCCH in a slot. The UE may receive a second PDCCH repetition of the PDCCH in the slot. Numerous other aspects are described.

Abstract: Methods, systems, and devices for wireless communications are described. A wireless device (or apparatus at the device), such as a transmitting device, may communicate scheduling information for an encoded message, including downlink or uplink scheduling information. The wireless device may also transmit or receive an encoded message in accordance with the scheduling information. In some examples, the encoded message may include a set of multiple bits that are generated in accordance with performance of a probabilistic amplitude shaping (PAS) operation for a set of code blocks (CBs) of a transport block (TB). Each CB of the set of CBs may include a quantity of bits that is a multiple of eight bits. In some examples, the quantity of bits of a CB may be associated with a shaping parameter and a floor function. Further, the PAS operation may be performed per CB of the set of CBs.

Abstract: Methods, systems, and devices for wireless communications at a user equipment (UE) are described. The UE may transmit an indication of a hybrid automatic repeat request (HARQ) memory capability of the wireless device to support a variable limited buffer rate matching (LBRM) coding rate parameter that is inversely proportional to a scaling factor associated with a HARQ memory capacity of the wireless device. The UE may receive, based on the indication of the HARQ memory capability, control signaling configuring a first value for the variable LBRM coding rate parameter. The UE may communicate in accordance with the variable LBRM coding rate parameter.

Abstract: Method and apparatus for two-stage PDCCH with dynamic DCI size indication. The apparatus receives DCI including a first DCI portion comprising an indication indicating a size of a second DCI portion, and the second DCI portion having the size based on the indication in the first DCI portion. The apparatus transmits or receives communication with a network entity using resources scheduled in the second DCI portion. The apparatus receives RRC signaling indicating a first DCI size of the first DCI portion from a defined set of sizes.

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may update a noise estimation (e.g., a noise covariance matrix, a log likelihood ratio (LLR) scaling, or both) for communications with a serving base station to account for interference from a neighboring base station operating according to a different radio access technology (RAT). For example, the UE may identify a transmission status of a base station operating according to a first RAT, such as long term evolution (LTE), that shares a radio frequency spectrum with a serving base station operating according to a second RAT, such as new radio (NR). The UE may measure the interference from the LTE base station and may update a noise estimation according to the measured interference. The UE and the serving base station may communicate based on the updated noise estimation.

Abstract: Methods, systems, and devices for wireless communications are described. Some examples of the described techniques provide for time-division multiplexing (TDM) modem envelope enhancements. A user equipment (UE) may receive, from a network entity, a message scheduling a transport block or multiple transport blocks in a downlink slot that immediately precedes one or more non-downlink slots (e.g., uplink (U), special(S), or flexible (F) slots) in a TDD slot configuration. The UE may receive the transport block or the multiple transport blocks in the downlink slot, and may process at least a portion of the transport block or the multiple transport blocks during one or more time intervals that occur after the downlink slot. The transport block may satisfy a per-slot transport block size threshold that is associated with a hybrid automatic repeat request (HARQ) processing timeline.

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment may receive signaling that indicates one of a plurality of demodulation reference signal (DMRS) configurations for demodulating a downlink data channel in a slot or subslot. The UE may receive the signaling from a network entity, such as a base station, and the network entity may select the indicated DMRS configuration. The plurality of DMRS configurations may indicate whether DMRS combining is supported across the slot or subslot and a subsequent adjacent slot or subslot, and the plurality of DMRS configurations may include a configuration that is capable of indicating to the UE that a single DMRS is configured in the slot or subslot and is to be combined with a DMRS in a subsequent adjacent slot or subslot to demodulate the downlink data channel.

Abstract: Methods, systems, and devices for wireless communications are described. A wireless device may receive a signal including a polar encoded control message. A message payload of the polar encoded control message may be associated with known bits information that may indicate one or more bit positions of one or more known bits and a respective bit value for each of the one or more known bits. The wireless device may perform successive cancellation list polar decoding on the signal to obtain the message payload of the polar encoded control message by generating list decoding bit sequences. A path metric of a list decoding bit sequence may be based on application of a bias penalty value to one or more bit decisions in the list decoding bit sequence that differ from a known bit value at a bit position in accordance with the known bits information.

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a wireless communication device may identify, for removal from a hybrid automatic repeat request (HARQ) buffer of the wireless communication device, a HARQ process from a plurality of HARQ processes maintained in the HARQ buffer by the wireless communication device, wherein the HARQ process is identified based at least in part on one or more HARQ buffer management parameters. The wireless communication device may remove the HARQ process from the HARQ buffer. Numerous other aspects are described.

Abstract: Various aspects of the present disclosure generally relate to wireless communication. Some aspects more specifically provide procedures and configurations used to perform, at a transmitter, probabilistic amplitude shaping (PAS) of quadrature amplitude modulation (QAM) communications using non-binary polar coding (NBPC). NBPC differs from binary polar coding (BPC) in that BPC uses a binary-input channel whereas NBPC uses a non-binary input channel. For example, while BPC uses a log likelihood ratio (LLR) with a single value corresponding to a given bit to be shaped, NBPC may use a probability mass function (PMF) to define or represent amplitude shaping target values. As another example, aspects use non-binary transformations, which reduce the number of passes to shape q bits from q passes (for BPC) to 1 pass (for NBPC).

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive a hybrid automatic repeat request (HARQ)-disabled configuration including a configuration for discarding one or more failed downlink communications. The UE may transmit HARQ feedback for the one or more failed downlink communications in accordance with the HARQ-disabled configuration. Numerous other aspects are described.

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may perform at least one decoding procedure that leverages known bits of a downlink control information (DCI) message. The UE may monitor for a DCI message corresponding to a DCI format and may perform multiple decoding procedures in parallel, including a first decoding procedure and a second decoding procedure. The first decoding procedure may be based on a set of received bits of the DCI message. The second decoding procedure may be based on at least a portion of the set of received bits being replaced with one or more known bit values in accordance with the DCI format. That is, the UE may decode a first portion of bits of the DCI and may refrain from decoding a second portion of bits of the DCI that are replaced with the one or more known bits.

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a first network entity may receive, from a second network entity, an encoded communication. The first network entity may decode the encoded communication to obtain a communication via a list-based decoding scheme that includes respective parity check operations for each list of decoded information of a set of one or more lists of decoded information, the parity check operations being configured to be performed prior to a cyclic redundancy check (CRC) operation for the one or more lists of decoded information. Numerous other aspects are described.

Abstract: Some examples of the techniques described herein may provide schemes to organize shaped payload bits, non-shaped payload bits, and parity bits to allow an increased quantity of bits to be shaped for enhanced performance. Interleaving may be utilized in some aspects to enhance robustness to burst errors. For instance, interleaving schemes for enhancing bit orderings and interleaving are provided. In some approaches, permutation and row-column interleaving may be performed with a quantity of rows. Some approaches may utilize circular rotation and row-column interleaving with a quantity of rows. In some examples, permutation with alphabet-based row-column interleaving with fixed rows may be performed. Some aspects may include permutation and row-column interleaving with a quantity of rows when punctured columns are shaped. In some approaches for modulation mapping, each set of bits may be mapped to a quadrature amplitude modulation (QAM) symbol.