Abstract: Apparatus, methods, and computer-readable media for facilitating a HARQ flush indicator for transmissions are disclosed herein. An example method for wireless communication at a first sidelink device includes transmitting a sidelink transmission of one or more CBs using code block groups, each code block group including one or more CBs of the sidelink transmission. The example method also includes receiving negative feedback for at least one CB of the sidelink transmission. Additionally, the example method includes retransmitting the at least one CB. The example method also includes transmitting an FI indicating to avoid combining a prior sidelink transmission of the at least one CB with a retransmission of the at least one CB.

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive an indication of one or more bandwidth part (BWP)-specific access link parameters and one or more BWP-specific sidelink parameters. The UE may perform at least one of access link communication with a base station based at least in part on the one or more BWP-specific access link parameters, or sidelink communication with another UE based at least in part on the one or more BWP-specific sidelink parameters. Numerous other aspects are provided.

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a first node may transmit, to a second node on a beamformed link from the first node to the second node, a first signal, wherein the first node and the second node are associated with common timing; determine whether a second signal, based at least in part on the first signal, is received on a beamformed link from the second node to the first node; and transmit a third signal based at least in part on receiving the second signal or perform a sidelink beam failure recovery procedure based at least in part on determining that the second signal is not received. Numerous other aspects are provided.

Abstract: This disclosure provides systems, devices, apparatus, and methods, including computer programs encoded on storage media, for retransmission and selection of HARQ and MCS based on partial sensing. A UE may perform a partial sensing procedure to identify one or more available resources for a sidelink transmission of the UE and transmit the sidelink transmission on a resource selected from the one or more available resources. The sidelink transmission may include at least one of a HARQ retransmission parameter or an MCS selected for the sidelink transmission based on at least one of a number of candidate slots for the partial sensing procedure, a quantity of the one or more available resources within the number of candidate slots, or a number of times that a threshold for a minimum amount of the one or more available resources is increased.

Abstract: Methods, systems, and devices for wireless communications are described. Generally, the described techniques provide for indicating a sidelink configuration for synchronization signal transmission. For example, a user equipment (UE) may establish an access link with a base station or transmission/reception point. The UE may measure a plurality of beams of the access link or of a sidelink channel to generate a signal metric of the access link or of the sidelink channel. Based on the generated signal metric, the UE may identify a sidelink configuration for synchronization signal transmission within the sidelink channel. In some cases, the UE may transmit a synchronization signal via the sidelink channel based at least in part on the sidelink configuration.

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may transmit to a base station a request for resources including an indication of a transmission beam for performing a sidelink communication in a millimeter wave (mmW) system. The base station may determine a transmission configuration based on the request for resources. The UE may transmit reference signals based on the transmission configuration, and the base station may monitor for the reference signals using one or more reception beams. The base station may determine timing information for the sidelink communication, and transmit the timing information to the UE in a resource grant. Based on the timing information, the UE may perform the sidelink communication using the transmission beam. In some examples, the sidelink communication may be multiplexed in frequency from the perspective of the base station with an uplink transmission from another UE.

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may identify that an uplink transmission to a base station is to occur in accordance with an uplink timing advance value representing an amount of time that the uplink transmission takes from transmission at the UE to reception at the base station. The UE may perform an autonomous open-loop adjustment to the uplink timing advance value. The UE may transmit the uplink transmission to the base station in accordance with the adjusted uplink timing advance value. The base station may transmit an indication of a set of uplink timing advance values for a UE to use for uplink transmissions, each of the set of uplink timing advance values representing an amount of time that an uplink transmission is expected to take from transmission at the UE to reception at the base station.

Abstract: Certain aspects of the present disclosure provide techniques for network-assisted sidelink beam failure recovery. In certain aspects, a method performed by a base station may generally include receiving from a first UE a sidelink beam failure recovery (BFR) signal, indicating that a first communication link between the first UE and a second UE has failed; determining, based on the sidelink BFR signal, a set of resources for performing a sidelink beam failure recovery procedure to reestablish the first communication link between the first UE and the second UE; and transmitting information to the first UE and the second UE indicating the set of resources for performing the sidelink beam failure recovery procedure.

Abstract: Method and apparatus for BSR and scheduling grant for target UE in sidelink relay. The apparatus receives a request for sidelink communication from a target UE. The apparatus receives a first BSR from the target UE via the sidelink communication. The apparatus transmits a second BSR to a network entity, the second BSR comprising information corresponding to at least one of the first BSR of the target UE or a sidelink BSR for the relay UE. The apparatus receives an allocation of resources for the sidelink communication with the target UE based on the second BSR. The apparatus communicates via the sidelink communication with the target UE using the allocation of resources.

Abstract: Methods, systems, and devices for wireless communications are described. A device in communications with a second device may receive a message from the second device. After receiving, the device selects between a decode-and-forward (DF) or an amplify-and-forward (AF) transmission scheme for forwarding the message to a base station. The selection may be made using one or more trigger conditions associated with the transmitting device, the receiving device, or the base station, such as power availability at the device, processing capability of the device, or beam parameters such as beam width, array gain, or other conditions. After selecting, the device may use the selected transmission scheme for forwarding a packet from the second device to the base station.

Abstract: Wireless communications systems and methods related to communicating information are provided. A method of wireless communication performed by a user equipment (UE) may include mapping a sub-physical sidelink shared channel (sub-PSSCH), sidelink control information (SCI), and an automatic gain control (AGC) symbol to a sub-slot of a plurality of sub-slots of a slot and transmitting, to at least one other UE, a transport block via the sub-PSSCH of the sub-slot.

Abstract: Aspects described herein relate to preempting or cancelling sidelink or uplink communications, by a base station or a user equipment (UE). In an aspect, a base station can determine to schedule a first device to communicate, in first resources, sidelink communications having a first priority, determine to schedule a second device to transmit, in second resources, sidelink or uplink transmissions having a second priority, wherein the second resources overlap the first resources at least in a time domain, and transmit, based on the first priority and the second priority, an indication to the first or second device to preempt or cancel sidelink communications or uplink transmissions in associated resources. In another aspect, a UE can receive an indication to cancel sidelink transmission over sidelink resources previously scheduled for the sidelink transmission, and can refrain from the sidelink transmission over the sidelink resources.

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a source user equipment (UE) may transmit a first sidelink communication to a target UE. The source UE may receive, based at least in part on transmitting the first sidelink communication to the target UE, a transmit power control command for a second sidelink communication. The source UE may transmit the second sidelink communication using a transmit power determined based at least in part on the transmit power control command. Numerous other aspects are provided.

Abstract: Certain aspects of the present disclosure provide techniques for providing a probabilistic feedback parameter. One example method for wireless communication may be performed by a first wireless node. The method generally includes generating a feedback message indicating a probabilistic estimate comprising a plurality of feedback parameter values and a plurality of value probabilities, wherein each value probability is associated with one feedback parameter value of the plurality of feedback parameter values, and transmitting the feedback message to a second wireless node.

Abstract: This disclosure relates to multi-component carrier grants. Specifically, in one aspect, a relay UE may identify and transmit to a remote UE, a plurality of sidelink component carriers based on a grant including a plurality of downlink component carriers, the plurality of sidelink component carriers associated with the a second communication channel. In another aspect, a remote UE may receive, from a relay UE, a plurality of sidelink component carriers associated with a first communication channel, the plurality of sidelink component carriers derived from a grant including a plurality of downlink component carriers associated with a second communication channel. In a further aspect, a network entity may determine a grant including a plurality of downlink component carriers associated with a first communication channel, the plurality of downlink component carriers used to derive a plurality of sidelink component carriers for a remote UE and associated with the a second communication channel.

Abstract: Methods, systems, and devices for wireless communications are described in which a first user equipment (UE) may transmit sidelink communications to a second UE, and the second UE may provide feedback associated with the sidelink communication to the first UE in a sidelink control information (SCI) transmission. In some cases, the SCI is first stage SCI transmitted in a sidelink control channel or second stage SCI transmitted in a sidelink shared channel. The feedback may include one or more of acknowledgment/negative-acknowledgment feedback, channel state information feedback, a scheduling request, or any combinations thereof. In some cases, the first UE may indicate resources of the second slot to the second UE for transmission of the feedback in the SCI, such as by providing a time offset value and resource index that identifies the resources.

Abstract: An object is to provide a material for an organic EL device having excellent hole injection and transport performance, electron blocking ability, stability in a thin film state, and durability, and further to provide an organic EL device having high efficiency, a low driving voltage, and a long lifetime by combining the material with various materials for an organic EL device having excellent hole and electron injection and transport performance, electron blocking ability, stability in a thin film state, and durability in such a manner that the characteristics of each of the materials can be effectively exhibited. An organic EL device was fabricated by focusing on the fact that a triarylamine compound having a specific structure has excellent hole injection and transport ability, thin film stability, and durability, and selecting a specific arylamine compound as a material for forming a second hole transport layer, and the invention was completed.

Abstract: Methods, systems, and devices for wireless communication are described. Generally, the described techniques provide for using different configurations for downlink or uplink transmissions associated with different transmission configuration indication (TCI) states (e.g., transmitted on different beams). In one example, a base station may use different configurations for downlink transmissions to a user equipment (UE), and the base station may indicate the different configurations to the UE. For instance, the base station may transmit downlink control information (DCI) indicating a baseline configuration and other configurations as a delta of the baseline configuration. In another example, a base station may dynamically indicate a timing advance to a UE (e.g., in DCI or flow control feedback) for an uplink transmission from the UE associated with a TCI state, and the UE may use the dynamically indicated timing advance for uplink transmissions associated with the TCI state.

Abstract: Aspects of the present disclosure provide techniques for standalone sidelink beam failure recovery. A method performed by a first user equipment includes communicating, while operating in a sidelink discontinuous reception (DRX) mode, with a second UE on a first communications link between the first UE and the second UE; transmitting, during an awake state of the sidelink DRX mode, at least one beam failure detection reference signal of a plurality of beam failure detection reference signals associated with the first communications link, wherein a periodicity of the awake state of the sidelink DRX mode is based on a periodicity for transmitting the plurality of beam failure detection reference signals; and detecting that the first communications link between the first UE and the second UE has failed based on the at least one beam failure detection reference signal.

Abstract: Methods, systems, and devices for wireless communications are described. In some examples, a sidelink user equipment (UE) may monitor a set of symbols over a wireless channel. The set of symbols may include at least a first subset of symbols and a second subset of symbols. A quantity of symbols included in the first subset of symbols may be based on a carrier frequency of the wireless channel, a symbol length of the wireless channel, a subcarrier spacing (SCS) of the wireless channel or a capability of the sidelink UE.