Abstract: This disclosure provides systems, methods and apparatus, including computer programs encoded on computer storage media, for sounding reference signal (SRS) management for a line-of-sight multiple-input multiple-output (LSM) mode. A receiving device may receive a configuration of a persistent or semi-persistent SRS resource set that configures a first number of SRS ports for a full spatial sounding mode. The receiving device may transmit a SRS on a partial sounding resource subset of the SRS resource set, the partial sounding resource subset corresponding to a partial sounding LSM mode. A transmitting device such as a base station may performing phase ramp interpolation for the partial sounding LSM mode to estimate a LSM channel between the base station and the first receiving device.

Abstract: Aspects of the present disclosure relate to wireless communications, and more particularly, to techniques for multiple-input multiple-output (MIMO) communications One aspect provides a method for wireless communication. The method includes receiving a signal using a multiple-input multiple-output (MIMO) receiver, wherein the signal includes at least a first code block (CB) including a first part received via a first layer of the MIMO receiver and a second part received via a second layer of the MIMO receiver, wherein the second part of the first CB is shifted within a spectrum by at least two resource positions with respect to the first part of the first CB; performing interference cancellation for the first CB; and decoding the first CB after performing the interference cancellation.

Abstract: Methods, systems, and devices for wireless communications are described that provide low density parity check (LDPC) coding techniques using a generated base graph that is generated from an initial base graph. The generated base graph may combine multiple punctured nodes of the initial base graph into a multiple degree node that merges element values of a first node and a second node of the initial base graph matrix, where the first node and the second node are punctured. The generated base graph may combine multiple punctured nodes of the initial base graph into a single node, and add a node to match a rate and code block size associated with the initial base graph.

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may generate an encoding matrix including a set of information columns including systematic bits, a first set of core parity columns including a first set of parity bits, and one or more sets of extension parity columns including a second set of parity bits. The UE may puncture one or more of the systematic bits with the first set of parity bits, the second set of parity bits, or a combination thereof, based on an offset value indicating an initial column of the encoding matrix. The UE may encode an initial message in accordance with the encoding matrix based on the offset indicating the initial column of the encoding matrix.

Abstract: The present invention relates to novel phthalocyanines compounds and the use thereof to treat diseases, and more particularly, to treat diseases that include bacterial infections, cancer, cardiovascular, high blood pressure, viral infections and the like. The compounds have a general formula (I) wherein M is metal selected from the group consisting of zinc, cobalt, copper and nickel; R1-R4 is selected from the group consisting of 4-(5-chloro-1H-benzo[d]imidazole-2-yl)phenoxy tetraiodide; 4-(4-bromo-6-fluoro-1H-benzo[d]imidazole)phenoxy tetraiodide; 4-(4,6-dichloro-1H-benzo[d]imidazole-2-yl)phenoxy tetraiodide; 4-(5-bromo-1H-benzo[d]imidazole-2-yl)phenoxy tetraiodide; 4-(5,6-dichloro-1H-benzo[d]imidazole-2-yl)phenoxy tetraiodide; 4-(6-bromo-4-chloro-1H-benzo[d]imidazole-2-yl)phenoxy tetraiodide, and combinations thereof.

Abstract: Methods, systems, and devices for line of sight (LOS) multiple input multiple output (MIMO) signaling aspects for wireless communication. A wireless device may transmit, to a network device, a capability message indicating that the wireless device supports a LOS mode. The wireless device may receive, from the network device in response to the capability message, a control message indicating activation of the LOS mode and at least one LOS mode parameter based at least in part on a channel measurement associated with a wireless channel between the wireless device and the network device indicating that the wireless channel satisfies a LOS path criterion. The wireless device may communicate a message with the network device in accordance with the LOS mode parameter.

Abstract: Methods, systems, and devices for wireless communications are described. A transmitting wireless device may perform probabilistic amplitude shaping (PAS) on one or more portions of a message such that one or more symbols of the transmission may be associated with one or more non-uniform amplitude distributions, while also using uniformly distributed constellation symbols for the remaining portions of the same message. For example, the transmitting wireless device may obtain one or more subsets of bits associated with a uniform information bit distribution. The wireless device may perform one or more shaping operations on one or more of the subsets in accordance with PAS while refraining from performing the shaping operation on one or more subsets. The wireless device may map the subsets of bits to symbols of a transmission, and may transmit the symbol sequence to a receiving wireless device.

Abstract: Methods, systems, and devices for wireless communications are described. In some examples, a wireless communication device (such as a network entity) may output a downlink control channel message using at least a first resource element (RE) of a first control resource set (CORESET) and using at least a second RE of a second CORESET. The first CORESET and the second CORESET may be linked and may be associated with different transmission configuration indicator (TCI) states. Additionally, each of the first RE and the second RE may be associated with a same payload of the downlink control channel message, and modulation of a first set of symbols mapped to the first RE may be linked to modulation of a second set of symbols mapped to the second RE based on the first CORESET and the second CORESET being linked.

Abstract: An apparatus (e.g., a transmitter) may transmit a message and one or more retransmissions of the message in a wireless communication network. The message may include a codeword that includes information bits and error correction bits (e.g., parity bits). The one or more retransmissions may include error correction bits associated with the information bits. To improve the decoding performance at a receiver, the transmitter may apply probabilistic shaping to the one or more retransmissions. In some aspects, the apparatus transmits a first message including information bits and a first set of error correction bits associated with the information bits. The apparatus transmits at least a second message associated with the first message, wherein the second message includes a second set of error correction bits associated with the information bits and a set of probabilistic shaping bits for the second set of error correction bits.

Abstract: Methods, systems, and devices for signaling aspects of misalignment estimation and compensation for line of sight (LOS) multiple input multiple output (MIMO) communications are described. In some examples, a user equipment (UE) may receive control signaling identifying a configuration for an alignment procedure for an antenna array of the UE that includes a plurality of antenna elements. In some examples, the UE may identify a misalignment factor for the antenna array according to the identified configuration. The UE may communicate with the network entity using the antenna array based at least in part on performing a compensation procedure for the antenna array of the UE based at least in part on the misalignment factor.

Abstract: A wireless node may one or more memories, individually or in combination, having instructions. A wireless node may one or more processors, individually or in combination, configured to execute the instructions and cause the apparatus to: generate encoded data by using at least one of a first block of u-domain bits comprising a first u-domain bit being a frozen bit and further being indicative of a phase associated with transmission of the first block via the encoded data; and output the encoded data for transmission.

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment may transmit a request for a downlink control parameter associated with a control channel. The downlink control parameter may indicate one or more of: a precoder cycling or a demodulation reference signal bundling. The UE may receive, based at least in part on the request, a downlink control message in accordance with the downlink control parameter.

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may transmit capability information that includes an indication of a capability for performing an additional-resource-element channel estimation. The UE may receive a communication that includes a demodulation reference signal (DMRS), wherein the communication is transmitted via a plurality of resource elements, and wherein the additional-resource-element channel estimation is performed utilizing a group of resource elements, of the plurality of resource elements, via which the DMRS is transmitted and a group of additional resource elements, of the plurality of resource elements, via which the communication is transmitted. Numerous other aspects are described.

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a wireless communication device may obtain a message vector. The wireless communication device may generate a set of message sub-vectors using the message vector. The wireless communication device may generate, using a common input linear layer, a set of message embedding vectors corresponding to the set of message sub-vectors. The wireless communication device may generate, using an artificial neural network, a set of codeword embedding vectors corresponding to the set of message embedding vectors. The wireless communication device may generate, using a common output linear layer and the set of codeword embedding vectors, a set of codeword sub-vectors permutation-equivariant relative to the set of message sub-vectors. The wireless communication device may combine the set of codeword sub-vectors to generate a codeword vector and may transmit a communication carrying the codeword vector.

Abstract: Methods, systems, and devices for wireless communications are described. A wireless communications system may implement unitary rotations of constellations to introduce frequency diversity for signaling, such as control signaling, in accordance with a coupling matrix or a rotation angle. The digital signal may be decoded to obtain the original data. As such, frequency diversity may be introduced to signals by performing one or more unitary rotations and transmitted rotated versions of the signal, which may increase frequency diversity and robustness at the wireless communications system. In some examples, a user equipment (UE) may receive a configuration to indicate a rotation to be applied to one or more resources, and the configuration may include the rotation matrix or the angle of rotation. The UE may monitor the one or more resources and receive a message having the rotation applied in accordance with the configuration, which may improve the reliability of communications.

Abstract: A low-density parity-check encoder is provided that encodes a plurality of information bits according to a low-density parity-check matrix. The encoder generates auxiliary bits from the information bits, and the transmitter punctures the auxiliary bits while transmitting the information bits, thereby preserving a shape of the information bits.

Abstract: A configuration to allow for an SRS resource set trigger list configuration to be updated using MAC-CE. The apparatus transmits, to a UE, an SRS resource set trigger list configuration via RRC signaling. The apparatus transmits, to the UE, an updated trigger list value via MAC-CE to update the SRS resource set trigger list configuration. A trigger state of at least one SRS resource set is updated based on the updated trigger list value. The apparatus receives, from the UE, at least one SRS based on the updated SRS resource set trigger list configuration.

Abstract: Methods, systems, and devices for wireless communication are described. A device (e.g., a UE or a network entity) may generate a first set of bits by performing a probabilistic shaping operation on first information bits using a first shaping parameter associated with a first layer and a second set of bits by performing the probabilistic shaping operation on second information bits using a second shaping parameter associated with a second layer. The device may generate a first set of symbols and a second set of symbols by modulating the first set of bits and the second set of bits using a modulation power scaling factor and transmit the first set of symbols via the first layer and the second set of symbols via the second layer.

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive a resource allocation for communication of a physical downlink shared channel (PDSCH) and may determine a quantity of code blocks associated with a transport block size of the PDSCH. In some implementations, the UE may adjust the quantity of code blocks to a second quantity of code blocks based on a quantity of time and frequency resources, a quantity of spatial layers, or both. In some implementations, the UE may adjust the quantity of code blocks to a second quantity of code blocks of a first size, to a third quantity of code blocks of a second size, or both based on a quantity of time and frequency resources, the quantity of code blocks, or both. The UE may communicate the second quantity of code blocks, the third quantity of code blocks, or both.

Abstract: Various aspects of the present disclosure generally relate to wireless communication. A network node may transmit a physical downlink control channel (PDCCH) communication to a user equipment (UE) using a type of modulation. Under some conditions, a statically configured modulation scheme may have sub-optimal performance with respect to network resources. Various aspects relate generally to modulation switching for PDCCH. Some aspects more specifically relate to switching from modulating a transmission using a default constellation size associated with a default code rate to modulating the transmission with a larger constellation size associated with a smaller code rate. In some examples, the described techniques can be used to improve performance, such as with respect to frequency resource utilization.