Abstract: A method for wireless communication at a user equipment (UE) and related apparatus are provided. In the method, the UE receives a physical random access channel (PRACH) configuration from a network entity. The PRACH configuration may indicate a set of PRACH resources for the UE. The UE then selects a PRACH resource from a first PRACH resource and a second PRACH resource in the set of PRACH resources indicated by the PRACH configuration based on the presence or the absence of location information at the UE and transmits a random access message using the PRACH resource.

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive a configuration associated with an orthogonal cover code (OCC), wherein the configuration indicates a multiplexing order, an OCC codeword for multiplexing, and a type of OCC, and the type of OCC is one of: frequency domain OCC (FD-OCC), time domain OCC (TD-OCC), sub physical resource block (sub-PRB) OCC, or sub-slot OCC. The UE may apply, based at least in part on the configuration, the OCC to an uplink transmission. The UE may transmit the uplink transmission with the OCC applied based at least in part on the configuration. Numerous other aspects are described.

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may account for the application of orthogonal cover coding (OCC) to an uplink transmission when determining the transport block size (TBS) for the uplink transmission. OCC may be used to multiplex transmissions from multiple UEs and may involve spreading information. Described techniques may involve accounting for the spreading of information bits when determining the TBS for the uplink transmission to which OCC is applied. Sub-physical resource block (sub-PRB) frequency allocations may be provided for uplink transmissions. The UE may account for the allocated quantity of sub-carriers when determining the quantity of information bits. To indicate a sub-PRB, the UE may be configured to reinterpret one or more fields of an existing downlink control information (DCI) format as indicating the allocated sub-carriers, or a new DCI format may be configured that includes fields for indicating a sub-PRB allocation.

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a network node may transmit, and a user equipment (UE) may receive, signaling that indicates at least a first random access channel (RACH) occasion (RO) partition and a second RO partition. The first RO partition may be associated with different uplink transmission capabilities than the second RO partition. The UE may select an RO in the first RO partition or the second RO partition based at least in part on a metric that relates to an uplink transmission capability of the UE. The UE may transmit, and the network node may receive, a preamble in the selected RO to initiate a RACH procedure. Numerous other aspects are described.

Abstract: Methods, systems, and devices for wireless communication are described. In some aspects, a network entity may encode, at an application layer, multiple internet protocol (IP) packets with an application level outer code to generate outer encoded IP packets. In such aspects, the network entity may generate, for each of the outer encoded IP packets, a medium access control (MAC) packet data unit (PDU) at a MAC layer. In one aspect, the network entity may map each MAC PDU to a respective code block of a single transport block (TB) and broadcast the TB. Alternatively, the network entity may map each MAC PDU to a single codeblock of a respective TB and broadcast the TB via a single time slot. In some other aspects, the network entity may perform physical or MAC layer outer encoding on the IP packets, where the network entity may perform outer encoding on multiple MAC PDUs.

Abstract: This disclosure provides systems, methods and apparatus for enabling multi-TRP transmission in non terrestrial networks. In one aspect, a user equipment receives a first reference signal from a first satellite transmission reception point (TRP) at a first timing and receives a second reference signal from a second satellite TRP at a second timing. The first timing is synchronized with the second timing at a first geographic location. The user equipment receives a third reference signal from the first satellite TRP at a third timing and receives a fourth reference signal from the second satellite TRP at a fourth timing. The third timing and the fourth timing are synchronized at the user equipment. The user equipment receives an indication of a timing offset of the fourth reference signal with respect to the second reference signal and uses the third and fourth reference signals as a quasi colocation (QCL) source.

Abstract: Methods, systems, and devices for wireless communications are described. Various techniques for bandwidth part activation and signaling are described. Control messaging may be used to indicate a mapping of beams and bandwidth part to respective indices, such as a bandwidth part identifier or a transmission configuration indicator (TCI) state codepoint. Further control messaging may specify one of these indices, and a user equipment (UE) may communicate with a network entity, such as a satellite or base station using a bandwidth part in a beam specified in the control messaging.

Abstract: Methods, systems, and devices for wireless communication are described. Various aspects generally relate to segmented pre-compensation schemes that account for time division duplexing (TDD) patterns involving periodic valid uplink subframes. Some aspects more specifically relate to a segmented pre-compensation scheme according to which a user equipment (UE) may reset a segment duration in a next valid uplink subframe in accordance with an interruption, by an invalid uplink subframe associated with a TDD pattern, of a segment within a prior valid uplink subframe. The UE may perform a time or frequency adjustment at or prior to the segment duration reset in the next valid uplink subframe. For example, if a first segment is interrupted by an invalid uplink subframe, the UE may transmit a postponed portion of the uplink message within a next valid uplink subframe in accordance with a new time or frequency adjustment.

Abstract: Methods, systems, and devices for wireless communications are described that provide for random access techniques for low duty-cycle time division duplexing (TDD) communications. Random access preamble transmissions may use transmission resources associated with one or more preamble repetition units (PRUs), where a PRU may at least partially overlap with transmission resources that are not valid for a transmission. In such cases, all or a portion of the random access transmissions of the PRU may be postponed to a next valid uplink communication resource. Postponement of random access transmissions may be performed at a symbol-group level for symbol groups within a PRU, or at a PRU level. Further, radio network temporary identifiers (RNTIs) associated with random access transmissions may be identified based on a system frame associated with an initial transmission occasion of the random access transmission, or the postponed transmission occasion.

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may obtain an indication of a reference signal configuration associated with a time division duplex (TDD) mode of operation, wherein the reference signal configuration indicates at least one reference signal transmission pattern. The UE may monitor one or more reference signal candidate locations based at least in part on the at least one reference signal transmission pattern. Numerous other aspects are described.

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may identify a beam used for communicating with a network entity, the beam associated with multiple bandwidth parts (BWPs) including a reference BWP with a first frequency. The UE may receive a BWP configuration from the network entity, the BWP configuration based on changing a frequency for at least one BWP of the multiple BWPs form the first frequency to a second frequency. Additionally or alternatively, the UE may identify a timing threshold associated with a BWP switching operation for multiple BWPs associated with the beam. The UE may switch from the first BWP to a second BWP during the timing threshold. The UE may communicate with the network entity according to the BWP configuration or the second BWP.

Abstract: Wireless communication devices, systems, and methods related to global navigation satellite system (GNSS) position acquisition during connected mode, including associated protocols and signaling, are provided. For example, a method of wireless communication performed by a user equipment (UE) can include transmitting, to a non-terrestrial network unit, a capability indication, the capability indication indicating the UE is capable of performing a global navigation satellite system (GNSS) position acquisition during a connected mode connection; receiving, from the non-terrestrial network unit, an indication of whether the non-terrestrial network unit will support the UE performing the GNSS position acquisition during the connected mode connection; and performing, based at least in part on the receiving the indication, the GNSS position acquisition during the connected mode connection with the non-terrestrial network unit.

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a first network node may transmit, to a second network node, a handover request message indicating a handover request for a user equipment (UE), wherein the second network node is configured to support a non-terrestrial network (NTN) cell, and wherein the handover request message includes first information indicative of a location resolution operational state of the UE. The first network node may receive, from the second network node, a handover acknowledgment message that includes second information indicating whether the handover request is accepted, wherein the second information is associated with the location resolution operational state. Numerous other aspects are described.

Abstract: A base station may transmit a broadcast/multicast service in a multicast broadcast single frequency network (MBSFN) area multicast communication. A method of wireless communication at a base station in accordance with an aspect of the present disclosure comprises determining a broadcast/multicast service to be provided to a user equipment (UE) in a multicast broadcast single frequency network (MBSFN) area, and transmitting a tracking reference signal (TRS) to the UE, the TRS indicating information associated with receiving the broadcast/multicast service by the UE.

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive, from a network node, a downlink communication that indicates a random access response (RAR) or a fallback RAR, the downlink communication being received during a contention-free random access (CFRA) involving the UE and the network node. The UE may transmit, to the network node and based at least in part on an uplink grant in the RAR or in the fallback RAR, an uplink transmission with a repetition, the uplink transmission with the repetition being transmitted during the CFRA involving the UE and the network node. Numerous other aspects are described.

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive one or more control messages that indicate both an uplink semi-persistent scheduling (SPS) configuration for voice traffic for the UE and a downlink SPS configuration for the voice traffic for the UE. The UE may receive, in accordance with the downlink SPS configuration, one or more downlink voice packets for the UE via first downlink resources of a plurality of downlink resources indicated by the downlink SPS configuration indicated by the one or more control messages. The UE may transmit, in accordance with the uplink SPS configuration, one or more uplink voice packets for the UE via first uplink resources of a plurality of uplink resources indicated by the uplink SPS configuration indicated by the one or more control messages.

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may monitor for control signaling in one or more search spaces in accordance with a search space periodicity. The control signaling may schedule transmissions for the UE using a scheduling delay value. Generally, the described techniques enable the UE to receive an indication of a search space periodicity, scheduling delay value, or both that is aligned with a low duty-cycle communication interval. For example, the scheduling delay value, the search space periodicity, or both, may be shifted by integer multiples of the duty-cycle. Additionally, or alternatively, the scheduling delay value may be based on a quantity of valid communication frames.

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive, during a first multicast channel (MCH) scheduling period, an MCH scheduling information (MSI) medium access control control element (MAC-CE) associated with one or more time-interleaved multicast traffic channel (MTCH) transmissions. The UE may receive the one or more time-interleaved MTCH transmissions, spanning one or more MCH scheduling periods, including the first MCH scheduling period, based at least in part on the MSI MAC-CE. Numerous other aspects are described.

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive, from a network node, a transmission configuration associated with a set of transmission occasions comprising two or more transmission occasions that are each associated with a set of resources for contention-based transmissions. The UE may transmit, to the network node, a plurality of copies of a message in a plurality of transmission occasions selected from the set of transmission occasions, wherein each copy of the message is transmitted in a resource selected from the set of resources, and wherein each copy of the message includes a reference associated with one or more other copies of the message. Numerous other aspects are described.

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive control information that indicates a first pool of random access (RACH) resources for UEs in a global navigation satellite system (GNSS)-available state and a second pool of RACH resources for UEs in a GNSS-less state. The second pool may include longer RACH preambles, longer RACH occasions, or a RACH preamble format associated with a greater quantity of propagation paths compared to the first pool. In response to the transitioning GNSS states during a RACH procedure, a UE may perform RACH failure operations, indicate the transition to a higher layer, get new RACH resources from a same or different pool, or any combination thereof. Additionally, or alternatively, the UE may indicate the transition, the different GNSS state, or both, to a non-terrestrial network entity in a RACH message of the RACH procedure or in dedicated signaling.