Abstract: Certain aspects of the present disclosure provide techniques for enhancing beam failure indications and detections. In particular, the present disclosure provides techniques for identifying and indicating reasons associated with beam failures. For example, in aspects, a user equipment (UE) may evaluate multiple beam failure indicator (BFI) trigger conditions based on beam failure detection (BFD) reference signal (RS) measurements. The UE logs different types of BFIs based on the evaluating. If a logged number of BFIs exceeds a threshold value within a measurement period, the UE declares a beam failure and transmits, to a network entity, an indication of the beam failure and a reason for the beam failure based on the different types of BFIs detected.

Abstract: Aspects presented herein may improve the latency and efficiency of L1/L2 inter-cell mobility. In one aspect, a UE receives a configuration for a set of cells associated with a mobility of the UE, where the set of cells includes an SpCell and an SCell, where the set of cells includes a first subset of activated cells and a second subset of deactivated cells, and where at least one first cell of the set of cells is a reference cell and one or more second cells of the set of cells are associated with the reference cell. The UE receives an indication of an updated configuration for the set of cells based on a movement of the UE, where the indication of the updated configuration is received from the network entity, where the updated configuration includes at least one new cell in the set of cells.

Abstract: Certain aspects of the present disclosure provide techniques for efficiently transmitting data over multiple radio access technologies (RATs), for example, between a base station and a user equipment (UE). An example method by a receiver device generally includes receiving network coded packets from multiple transmitter devices, decoding the network coded packets, based on a network coding decoding scheme, to recover one or more source packets, generating feedback based on the decoding, and transmitting the feedback to the multiple transmitter devices.

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive a configuration of a set of cells that support at least one of layer 1 (L1) signaling mobility or layer 2 (L2) signaling mobility, wherein each cell, of the set of cells, is associated with a special cell (SpCell) configuration. The UE may receive, via one of L1 signaling or L2 signaling, an indication of a cell, of the set of cells, to serve as an SpCell. The UE may activate the cell as the SpCell based at least in part on the one of the L1 signaling or the L2 signaling and a corresponding SpCell configuration associated with the cell. Numerous other aspects are described.

Abstract: Methods, systems, and devices for wireless communications are described. A first user equipment (UE) may communicate with a network node via a first wireless link using a first beam according to a first beam configuration. In some examples, the first UE may transmit to the network node via a second wireless link with a second UE, a beam failure recovery (BFR) message in response to identifying a beam failure for the first beam. As such, the UE may receive, a message indicating a second beam configuration. For example, the network node transmit to the first UE via a third wireless link, the second beam configuration including a second beam for the first UE to use to communicate. Additionally, or alternatively, the network node may transmit to the second UE, a signal indicating for the second UE to relay traffic between the network node and the first UE.

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive from a network entity first control signaling identifying, of multiple cell groups configured at the UE, an inter-cell mobility configuration for a set of one or more cell groups for use at the UE. In some examples, each cell group of the multiple cell groups may include a primary cell (PCell) and zero or more secondary cells (SCells). The UE may transmit a measurement report for each cell group of the set of one or more cell groups for inter-cell mobility. The UE may receive, at least in part in response to transmitting the measurement report, second control signaling activating or deactivating a primary cell group for inter-cell mobility from one or more cell groups of the set of one or more cell groups.

Abstract: Methods, systems, and devices for wireless communications are described. The method may include a user equipment (UE) receiving first control information indicative of an information element (IE) that includes a set of inter-cell mobility parameters. Moreover, the UE may receive second control information indicative of a change in operating status of a TRP. The change in operating status may include transitioning the TRP to one of a primary TRP or an additional TRP as supported by a corresponding inter-cell mobility parameter of the set of inter-cell mobility parameters. The UE may then communicate with a network entity via the TRP in accordance with the change in operating status.

Abstract: Aspects relate to beam management reports that enable selection of best antenna panel and beam combinations for uplink transmissions from a user equipment (UE) when one or more antenna panels of the UE are subject to a maximum permissible exposure (MPE) limit. The UE receives a reference signal at a plurality of antenna panels, wherein the reference signal is received in different beams on each of the plurality of antenna panels. The UE determines N beams providing highest measured strengths of the reference signal on at least one of the plurality of antenna panels, wherein the MPE limit is to be applied to the at least one of the plurality of antenna panels for uplink transmissions. The UE transmits a beam management report including reduced highest measured strengths of the reference signal in the N beams to account for the MPE limit.

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive first control signaling indicating a configuration of a set of serving cells for inter-cell mobility procedures and a layer one (L1) report configuration. The UE may transmit, in accordance with the L1 report configuration, an L1 report including channel information associated with one or more cell groups of the set of serving cells, where the one or more cell groups include both active and inactive serving cells for the inter-cell mobility procedures. In some cases, the UE may receive second control signaling modifying the L1 report configuration. The second control signaling may indicate parameters of the L1 report configuration to be updated, such as cells or cell groups to be reported, quantities to measure and/or include in the L1 report, etc. The UE may update the L1 report configuration based on the second control signaling.

Abstract: Aspects of the present disclosure address beam management enhancement with the assistance of a cooperative relay UE over a sidelink (SL) channel. A UE may include a memory and a processor. The processor may use machine learning and channel condition measurements to predict an upcoming Uu link beam failure (BF). Based on the prediction, the processor may request SL data resources from a base station, wherein the processor may receive an allocated SL channel and a relay UE. When the Uu link fails, the processor can transmit a beam failure recovery (BFR) signal to the base station using the relay UE over the SL channel. The present disclosure overcomes the deficiencies of conventional BFR processes in which the BF forces the UE to perform a contentious RACH procedure, causing time delays and power consumption.

Abstract: Apparatus, methods, and computer-readable media for facilitating signaling of network coding information to facilitate feedback processing are disclosed herein. An example method for wireless communication at a transmitting device includes encoding data packets based on a first network coding and transmitting encoded data packets to a receiving device. The example method also includes receiving network coding information and determining a second network coding applied by the receiving device based on the network coding information. Additionally, the example method includes receiving feedback from the receiving device and decoding the encoded data packets based on the second network coding applied by the receiving device. Further, the example method includes updating the first network coding applied by the transmitting device based on the feedback and the decoding of the encoded data packets.

Abstract: Methods, systems, and devices for wireless communications are described. Generally, a transmitting user equipment (UE) may send packets, via a sidelink channel, to a receiving UE based on a network coding configuration received from a base station. The receiving UE may decode the packet(s) according to the network coding configuration, and transmit information that indicates an efficiency of the network coding configuration for the sidelink channel to the base station and/or the transmitting UE. The base station may generate and transmit, to the receiving UE and the transmitting UE, one or more updated parameters for the network coding configuration based on the received information that indicates the efficiency of the network coding configuration for the sidelink channel. The transmitting UE may encode, and the receiving UE may decode, future sidelink packets based on the one or more updated parameters.

Abstract: Example implementations include a method, apparatus and computer-readable medium of wireless communication by a user equipment, comprising receiving a Layer 1/Layer 2 (L1/L2) mobility configuration for each cell in a configured cell set, wherein the L1/L2 mobility configuration identifies one or more primary cell configurations for each secondary cell in the configured cell set, one or more secondary cell configurations for each primary cell in the configured cell set, and a measurement configuration for each cell in the configured cell set. The implementations further include measuring signals from each cell of the configured cell set according to the measurement configuration. Additionally, the implementations further include transmitting a measurement report including measurement information based on the signals measured from each activated cell of the configured cell set.

Abstract: Certain aspects of the present disclosure provide techniques for method of wireless communication by a target user equipment (UE), comprising receiving, from a network entity, signaling configuring the target UE with at least one set of parameters for a network coding scheme, receiving, while connected to a cooperative UE via a sidelink, network coded sub-packets from the network entity, receiving, from the cooperative UE via the sidelink, at least one of network coded sub-packets or original sub-packets, decoding the network coded sub-packets received from at least one of the network entity or the cooperative UE, based on the network coding scheme, to recover one or more original packets.

Abstract: Certain aspects of the present disclosure provide a method for wireless communications by a user equipment (UE). The UE receives a beam monitoring configuration indicating at least one condition to be satisfied for transmission of a beam condition report. The UE monitors at least one beam failure detection (BFD)-reference signal (RS) during an ON duration of a discontinuous reception (DRX) cycle. The UE transmits the beam condition report, at an end of the ON duration of the DRX cycle, when the at least one condition is satisfied during the ON duration of the DRX cycle.

Abstract: Apparatus, methods, and computer program products for L1 or L2 mobility are provided. An example method may include receiving a carrier aggregation (CA) configuration associated with a L1 or L2 mobility configuration from a network node, the L1 or L2 mobility configuration including primary cell (PCell) configurations for multiple cells. The example method may further include receiving at least one activation or deactivation of one of the PCell configurations from the network node.

Abstract: Methods, systems, and devices for wireless communications are described. A first user equipment (UE) may receive a control signal that indicates one or more parameters for a beam failure reporting procedure. The beam failure reporting procedure may be associated with a multi-path wireless connection for the first UE, which may include a first link between the first UE and a network entity and a second link between the first UE and a second UE. The first UE may monitor, as part of a multi-path beam failure recovery procedure, the first link for one or more signals associated with beam failure detection based on receiving the control signal. The first UE may transmit, via the first link or the second link, one or more messages in accordance with the beam failure reporting procedure based on monitoring. The one or more messages may include information associated with the one or more parameters.

Abstract: A UE may receive a BFD-RS and calculate, based on the BFD-RS, one or more of a value of an RSSI or at least one of a value of an SNR or a value of an RSRP, such that the UE may report a BFI based on the calculated values. The UE may initiate at least one of a total BFI timer or a consecutive BFI timer when a first BFI of a plurality of BFIs is stored, and increment at least one of a total BFI counter or a consecutive BFI counter when each of the plurality of BFIs is stored. A BFD procedure may be performed if at least one of the total BFI counter is greater than or equal to a maximum total count or the consecutive BFI counter is greater than or equal to a maximum consecutive count prior to an expiration of respective BFI timers.

Abstract: Aspects of the disclosure provide techniques for enabling cell synchronization and timing adjustment management in layer 1 and layer 2 (L1-L2) centric mobility applications. A user equipment (UE) communicates with a network entity using one or more cells of a plurality of cells that are configured for mobility operations using layer 1 and layer 2 (L1-L2) centric signaling. The plurality of cells are grouped into one or more timing adjustment groups (TAGs). The UE updates timing advance of the plurality of cells per group according to the one or more TAGs.

Abstract: A UE may identify a first beam condition associated with one or more first beam pairs between the UE and a first relay UE. The UE may transmit to a network node, and the network node may receive, from the UE, a request to switch to a new relay UE based on the first beam condition. The network node may transmit, to the UE, and the UE may receive, from the network node, an indication to switch to a second relay UE based on the request. The UE may switch to the second relay UE based on the indication to switch to the second relay UE. The UE and the network node may communicate with each other via the second relay UE.