Abstract: Technology for an Integrated Access and Backhaul (IAB) node in an IAB network is disclosed. The IAB node can decode, at a distributed unit (DU) of the IAB node, a first resource request received from one of a user equipment (UE) or a child IAB node, wherein the first resource request is associated with the UE. The IAB node can encode, at a mobile terminal (MT) of the IAB node, a second resource request for transmission to the parent IAB node or the IAB donor triggered by receipt of the first resource request, wherein the second resource request is transmitted prior to a receipt of a protocol data unit (PDU) at the DU of the IAB node.

Abstract: Systems, devices, and techniques for handover and false base station detection in a wireless communication network are described. A described technique performed by a user equipment (UE) includes receiving, from a source base station of a wireless network, a handover command to indicate a handover to a target base station for communication in the wireless network; receiving information from the target base station; determining whether the target base station is a legitimate base station of the wireless network based on the information from the target base station and handover information included in the handover command; and performing a handover based on the handover command and a determination that the target base station is the legitimate base station.

Abstract: Certain aspects of the present disclosure provide techniques for bandwidth part (BWP) switching by frequency shifting and/or by transmission configuration indicator (TCI) state configuration. A method that may be performed by a user equipment (UE) includes receiving a BWP configuration indicating a frequency location and bandwidth of at least a first BWP; receiving signaling indicating at least one frequency shift to determine a second BWP from a frequency location of the first BWP; and communicating on the second BWP after performing a BWP switch from the first BWP to the second BWP based on the at least one frequency shift.

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: Aspects are provided for repeating a configuration for a transmission after contention resolution in an early contention resolution. An apparatus may be configured to obtain a configuration indicating a number of repetitions for a PUCCH transmission for a PDSCH prior to activation of a dedicated PUCCH resource configuration. The PUCCH transmission may include a HARQ feedback message after receiving a contention resolution message carried in a prior PDSCH in a random access procedure. The apparatus may also be configured to transmit the HARQ feedback message for the PDSCH on a PUCCH according to the number of repetitions. The apparatus may further be configured to transmit a subsequent HARQ feedback message for the PDSCH on the PUCCH according to the number of repetitions for the HARQ feedback message for the PDSCH on the PUCCH. This allows coverage techniques to be applied to certain transmissions in order to improve coverage and reliability.

Abstract: Aspects are provided for enhancing a physical uplink control channel PUCCH) with frequency hopping for PUCCH repetition prior to dedicated PUCCH resource configuration. For example, the PUCCH may carry a HARQ ACK for Message 4 or Message B. An apparatus such as a user equipment (UE) receives an indication that a cell supports an enhanced physical uplink control channel (PUCCH) frequency hopping pattern for PUCCH with repetition prior to dedicated PUCCH resource configuration. The UE indicates at least one of a capability or a request of the UE for the enhanced PUCCH frequency hopping pattern. The UE receives downlink control signaling that indicates whether the enhanced PUCCH frequency hopping pattern is configured. The UE transmits a PUCCH with repetition and frequency hopping based on whether the enhanced PUCCH frequency hopping pattern is configured.

Abstract: Methods, systems, and devices for wireless communications are described. A base station may determine a terrestrial characteristic of a cell associated with the base station. A UE may perform a synchronization procedure with the cell and may receive, as part of the synchronization procedure, broadcast signaling associated with the cell. The broadcast signaling may identify the terrestrial characteristic of the cell. The base station may initiate communications with the UE based on the broadcast signaling including the indication of the terrestrial characteristic of the cell.

Abstract: Systems and techniques are provided for wireless communications. For example, an apparatus (e.g., a user equipment (UE)) may receive a plurality of downlink communications, wherein each downlink communication is associated with a Hybrid Automatic Repeat Request (HARQ) process. The apparatus may determine one or more uplink communications, wherein each uplink communication includes feedback associated with at least one downlink communication of the plurality of downlink communications. The apparatus may transmit the one or more uplink communications based on an uplink communication transmission configuration, wherein the uplink communication transmission configuration is determined based on a type of each downlink communication of the plurality of downlink communications.

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) and a network node may determine a configuration that indicates an antenna switching point associated with an uplink communication configured for multiple repetitions. The UE may transmit one or more repetitions of the uplink communication using a first transmit antenna prior to the antenna switching point. The UE may transmit one or more repetitions of the uplink communication using a second transmit antenna after the antenna switching point. The network node may perform channel estimation for the uplink communication based at least in part on the configuration that indicates the antenna switching point. 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 obtain a first value associated with transmitting an uplink communication that corresponds to a downlink communication received in a non-terrestrial network (NTN). The UE may compare the first value to a second value. The UE may selectively transmit the uplink communication, or selectively process the downlink communication, based at least in part on a result of comparing the first value to the second value. Numerous other aspects are described.

Abstract: RACH occasion repetition and PRACH format selection in an NTN are disclosed. The base station may determine, based on at least one beam, a first PRACH configuration for at least one first UE and a second PRACH configuration for at least one second UE. The base station may transmit, to at least one of the at least one first UE or the at least one second UE, an indication of the first PRACH configuration and the second PRACH configuration. The UE, based on whether it is a first UE or a second UE, may select, based on the received indication, the first PRACH configuration or the second PRACH configuration for at least one beam. The UE may initiate, via the at least one beam, a RACH procedure for the selected first PRACH configuration or the selected second PRACH configuration.

Abstract: Aspects are provided for enhancing HARQ ACK for Message 4 or Message B. An apparatus may obtain a configuration indicating a number of repetitions for a physical uplink control channel (PUCCH) transmission in a plurality of slots prior to activation of a dedicated PUCCH resource configuration with a plurality of repetitions based on a radio resource control (RRC) message. The PUCCH transmission includes a Hybrid Automatic Repeat Request (HARQ) feedback message in response to receiving a message on a Physical Downlink Shared Channel (PDSCH) in a random access procedure. The PUCCH transmission may then be transmitted on a PUCCH according to the number of repetitions. This allows coverage techniques to be applied to certain transmissions in order to improve coverage and reliability. In an aspect, the coverage enhancement techniques may include repetition of a transmission for coverage extension.

Abstract: Disclosed are techniques for location verification. In an aspect, a radio access network (RAN) node receives a request from a core network node to verify a location of a user equipment (UE), performs a RAN-based positioning procedure with the UE to determine a verified location of the UE, and transmits a response to the core network node, the response including: measurements obtained by the UE during the RAN-based positioning procedure, measurements obtained by the RAN node during the RAN-based positioning procedure, the verified location of the UE, an indication that the location of the UE is verified, or any combination thereof.

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receiving information identifying a timing and position for a transition from a first synchronization signal block associated with a first cell to a second synchronization signal block associated with a second cell, wherein the first cell and the second cell have a common physical cell index and a common frequency. The UE may tune from the first synchronization signal block to the second synchronization signal block in accordance with the timing and position. Numerous other aspects are described.

Abstract: An apparatus for wireless communications includes a processor, and a memory coupled with the processor and storing instructions operable, when executed by the processor, to cause the apparatus to output a pre-configured uplink resource (PUR) configuration information comprising a least significant bit (LSB) associated with a hyper system frame number (H-SFN). Execution of the instructions further cause the apparatus to obtain, from a user equipment (UE) at a PUR start time, a first message on a PUR associated with the PUR configuration information, the PUR start time associated with the H-SFN corresponding to the LSB.

Abstract: A method of wireless communication at UE is disclosed herein. The method includes transmitting at least one of a first indication including UE capability information indicating that the UE is capable of transmitting in UL during one or more MGs or a second indication including information indicating a first set of slots corresponding to the one or more MGs. The method includes obtaining a configuration to transmit a set of UL transmissions based on at least one of the first indication or the second indication. The method includes transmitting, based on the configuration, the set of UL transmissions in the first set of slots corresponding to the one or more MGs.

Abstract: Methods, systems, and devices for wireless communication are described. Generally, the described techniques provide for establishing rules for scheduling downlink data transmissions and flow control feedback for the downlink data transmissions to avoid confusion at a base station and a user equipment (UE). In one example, when flow control feedback from a UE is disabled for a downlink data transmission, the UE may still operate according to a timing for reporting flow control feedback for the downlink data transmission. In this example, the UE may drop (e.g., refrain from decoding) other downlink data transmissions based on the timing for reporting flow control feedback. In another example, when flow control feedback from a UE is disabled for a downlink data transmission, other downlink data transmissions to the UE may be scheduled according to one or more rules to avoid confusion.

Abstract: Non-terrestrial networks (NTNs) may establish uplink (UL) and downlink (DL) radio frame timing structures to efficiently account for propagation delay and propagation delay variation associated with communications in the NTN. NTNs may manage (synchronize) radio frame timing structures of base stations (e.g., satellites) and user equipment (UEs) in the NTN. Further, UEs may determine timing advance (TA) values to be applied to UL transmissions based on their respective scheduling offset (e.g., offset in UL and DL radio frame timing structures), as well as based on propagation delay or round trip time (RTT). As such, served UEs may determine UL timing such that UL transmissions from the UEs to a satellite arrives at the satellite in a time synchronized manner. In other cases, a satellite may determine UL timing, based on reception timing, such that various UEs in the NTN may implement uniform UL and DL radio frame timing structures.

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive information indicating whether hybrid automatic repeat request (HARQ) feedback is disabled for one or more HARQ processes. The UE may receive a downlink communication. The downlink communication may include a HARQ process identifier that indicates a HARQ process to be used for the downlink communication. The UE may selectively provide HARQ feedback for the downlink communication based at least in part on the HARQ identifier and information indicating whether HARQ feedback is disabled for the HARQ process. Numerous other aspects are provided.

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may determine an inactivity timer associated with a first set of one or more beams used for communicating with a network entity associated with a satellite has expired. The UE may identify location information corresponding to the location of the UE with respect to the network entity. The UE may identify beam geometry information for one or more beams associated with the network entity. For example, the UE may receive the beam geometry information from the network entity. The UE may process the location information and the beam geometry information to identify a second set of one or more beams, the second set different than the first set. The UE and the network entity may communicate according to the second set of one or more beams.