Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive configuration information identifying locations of respective random access channel (RACH) resources for a plurality of beams associated with a non-terrestrial network, wherein the plurality of beams are associated with respective frequency regions. The UE may perform a RACH procedure with regard to the selected beam using a RACH resource associated with the selected beam. Numerous other aspects are provided.

Abstract: Methods, systems, and devices for wireless communications are described. The described techniques relate to improved methods, systems, devices, and apparatuses that support power saving of wireless repeaters. Generally, the described techniques provide for wireless device (e.g., wireless repeater, wireless relay device, etc.) power savings in the absence of an attached (e.g., connected) user equipment (UE). For example, a wireless repeater may operate in a power saving mode and monitor for control information from a base station according to a slow state (e.g., according to a relatively long monitoring periodicity). Upon detection of possible UE attachment to the base station (e.g., upon detection of a random access channel (RACH) message), the wireless repeater may transition to monitoring for control information from the base station according to a fast state (e.g., according to a relatively short, or more frequent, monitoring periodicity).

Abstract: A random access method includes: performing listen before talk (LBT) operations on LBT frequency bands corresponding to N physical random access channel occasion (RO) resources; and selecting M target RO resources from the N RO resources, at least two RO resources in the N RO resources being corresponding to different LBT frequency bands, the target RO resources being RO resources in the N RO resources at which LBTs are successful, N being an integer greater than 1, and M being an integer less than or equal to N and greater than or equal to 1; and sending preambles by using the M target RO resources.

Abstract: A wireless device is configured to receive control signaling from a radio network node. The control signaling configures an uplink grant or downlink assignment to periodically recur. The control signaling also configures a number of redundant transmissions of a transport block that are transmittable within a bundle of the configured uplink grant or downlink assignment, where the number is greater than or equal to one. The control signaling may also configure different sets of transmission occasions within which the number of redundant transmissions are transmittable during, or starting during, a period of the configured uplink grant or downlink assignment.

Abstract: A robust random access response mechanism is disclosed. In various aspects of the disclosure, a user equipment (UE) initiates the random access connection procedure by transmitting a random access preamble to a base station. The base station may be configured to transmit a random access response message on any one or more of a plurality of transmission resources. The UE may then monitor each of the transmission resources for the random access response message from the base station. The UE may then establish the communication connection with the base station based on the random access response message.

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive a first indication of a first set of random access occasions associated with a synchronization signal block that corresponds with a first receive beam of a base station. The UE may receive a second indication of a second set of random access occasions that are each associated with a respective receive beam of a set of receive beams of the base station. Each receive beam of the set of receive beams may spatially overlap a portion of the first receive beam. The UE may transmit the random access message using a selected random access occasion of the second set of random access occasions.

Abstract: Systems, apparatuses, methods, and computer-readable media are provided for a user equipment (UE) in a wireless communication system using an unlicensed spectrum. The UE includes a processor circuitry and radio front end circuitry coupled with the processor circuitry. The processor circuitry is configured to determine UE processing time for a first physical downlink shared channel (PDSCH) transmission and a second PDSCH transmission, and an additional processing time corresponding to the first and the second PDSCH transmissions. The processor circuitry is configured to process a hybrid automatic repeat and request acknowledgement (HARQ-ACK) assessment information for inclusion in a subframe on a physical uplink control channel (PUCCH) following the UE processing time and the additional processing time. The radio front end circuitry is configured to receive the first and the second PDSCH transmissions from a base station, and transmit the HARQ-ACK assessment information on the PUCCH to the base station.

Abstract: Techniques and apparatus for configuring differential channel state information (CSI) reporting for high resolution CSI are provided. One technique includes determining a configuration for a user equipment (UE) to use for reporting differential CSI feedback. The configuration includes at least an indication of when the UE is to report differential CSI feedback, and is signaled to the UE. Once received, the UE reports differential CSI feedback according to the configuration.

Abstract: Methods, systems, and devices for wireless communications are described. The described techniques relate to improved methods, systems, devices, and apparatuses that support random-access occasion (RO) selection for reduced-capability (RedCap) user equipment (UEs). A RedCap UE operating in a half-duplex mode may use the techniques described herein to efficiently select an RO in which to transmit a random-access preamble based on a duration between a latest received downlink transmission and the RO satisfying a threshold duration. The UE may receive system information mapping a set of synchronization signal blocks (SSBs) to a set of ROs. The UE may then select an RO from the set of ROs in which to transmit the random-access preamble such that the UE has sufficient time to transition from a receive mode to a transmit mode to transmit the random-access preamble.

Abstract: This disclosure provides systems, methods and apparatuses for implementing full-duplex communications at an access point (AP) without configuring or modifying associated stations (STAs) to operate as full duplex devices. In some implementations, the AP may select at least one of one or more first STAs to transmit uplink (UL) data to the AP, determine a downlink (DL) signal-to-interference-plus-noise ratio (SINR) for each of one or more second STAs, select at least one of the one or more second STAs to pair with the selected at least one first STA for concurrent DL and UL communications with the AP based at least in part on the determined SINRs, and transmit DL data to the selected at least one second STA concurrently with receiving at least a portion of the UL data from the selected at least one first STA.

Abstract: A method of a Random Access (RA) procedure performed by a User Equipment (UE) is provided. The method includes receiving a first Random Access Channel (RACH) configuration from a Base Station (BS), the first RACH configuration including a first parameter associated with a first maximum number of RA preamble transmissions, receiving a second RACH configuration for a 2-step RA type from the BS, initiating an RA procedure with an RA type set to the 2-step RA type, determining whether the second RACH configuration includes a second parameter associated with a second maximum number of RA preamble transmissions, applying the second parameter for the RA procedure in a case that the second parameter is included in the second RACH configuration, and applying the first parameter for the RA procedure in a case that the second parameter is not included in the second RACH configuration.

Abstract: A device may wirelessly transmit a physical RACH, and a first message on a physical uplink shared channel (PUSCH), in a first step of a 2-step random access channel (RACH) procedure. The device may receive a second message on a physical downlink shared channel in response to successful detection of the first message, in a second step of the 2-step RACH procedure. When detection of the first message is unsuccessful, the device may be instructed to fall back to a 4-step RACH procedure. The device may be configured with one or more first message transmit opportunities (PO), one of which may include one or more PUSCH resource units (PRUs). Some of the communication parameters of the device may be configured to be common for each PO, while other communication parameters may be configured per PRU. Respective new Radio Network Temporary ID values may be defined for the first message and second message.

Abstract: A UE is configured to transmit PUCCHs for respective SRs with SR transmission occasions that would overlap with a transmission of a PUCCH with subslot based HARQ-ACK information in a resource using PUCCH format 2, 3, or 4 in a subslot of a slot. The UE includes processing circuitry configured to append SR information bits to subslot based HARQ-ACK information bits using PUCCH format 2, 3, or 4. The UE includes transmitting circuity configured to transmit UCI bits, having the HARQ-ACK and SR information bits, in a PUCCH using the PUCCH resource for the subslot based HARQ-ACK information bits with PUCCH format 2, 3, or 4. A number of the SR information bits is based on a total number of SRs with all priority configurations, or SRs with high priority configurations, whose PUCCH resources overlap with the subslot based HARQ-ACK PUCCH resource in the subslot of the slot.

Abstract: Methods, user equipment (UE), and base stations for downlink control information (DCI) formats reception or transmission are provided. A method of operating a UE to transmit a physical uplink shared channel (PUSCH) includes receiving a configuration for a number of bits for a field that indicates a parameter in a first downlink control information (DCI) format; and receiving a physical downlink control channel (PDCCH) that provides either the first DCI format scheduling the PUSCH or a second DCI format scheduling the PUSCH. The second DCI format includes a field with a predetermined number of bits that indicates the parameter. A minimum number of bits for the field in the first DCI format is smaller than the predetermined number of bits for the field in the second DCI format. The method also includes transmitting the PUSCH.

Abstract: A vehicular secured communication system includes a plurality of electronic control units disposed at a vehicle and interconnected by a communication network of the vehicle. The vehicular secured communication system determines if data received at an interface disposed at the vehicle is valid by (i) determining correspondence of a first parameter received via the communication network from a first electronic control unit of the plurality of electronic control units with a second parameter received via the communication network from a second electronic control unit of the plurality of electronic control units, (ii) determining correspondence of the first and second parameters with a current vehicle operating parameter or driving condition or driver profile, and (iii) comparing a vehicle behavior indicated by the received data to the current vehicle operating parameter or driving condition or driver profile.

Abstract: Example embodiments of the present disclosure relate to methods, devices, apparatuses and computer readable storage medium for Random Access Channel (RACH) occasion (RO) dropping. In a method, a device determines a set of valid random access channel occasions (ROs) for a physical random access channel (PRACH) transmission with preamble repetitions. The device determines that the PRACH transmission is to be dropped in at least one RO of the set of valid ROs. The device determines one or more ROs of the set of valid ROs for calculation of a random access radio network temporary identifier (RA-RNTI), the one or more ROs for calculation of the RA-RNTI are not conditioned to whether the corresponding PRACH transmission over the one or more ROs is to be dropped. Then the device calculates the RA-RNTI based on the determined one or more ROs of the set of valid ROs.

Abstract: Example embodiments of the present disclosure relate to a solution for determining a contention resolution timer. In an aspect, a first device receives, from a second device, an indication to perform Msg3 transmission. The first device transmits, to the second device, information of the first device for contention resolution. In case a configuration of a 4-step random access channel is unavailable in an active bandwidth part for the first device, the first device determines a duration for monitoring a contention resolution message based on one of: a first configuration of a 2-step random access channel in the active bandwidth part, or a second configuration of a 4-step random access channel in a bandwidth part different from the active bandwidth part. Example embodiments of the present disclosure can improve the performance of a random access procedure.

Abstract: Systems, methods, apparatuses, and computer program products for beam management reporting in connected mode discontinuous reception (C-DRX) are provided. One method includes configuring a user equipment (UE) in connected mode discontinuous reception (C-DRX) with a timer that determines at least one of when the UE monitors physical downlink control channel (PDCCH) from channel state information reference signal (CSI-RS) based beams or when the UE monitors PDCCH from synchronization signal block (SSB) based beams.

Abstract: A method for a node used for wireless communication and an apparatus are provided. The method includes: transmitting X1 first random access preambles, wherein X1 is a positive integer; monitoring control signaling of a first random access response during a first time window, wherein the first random access response corresponds to the X1 first random access preambles; based on a result of the monitoring control signaling, incrementing a counter by 1; and transmitting X2 second random access preambles, wherein X2 is a positive integer greater than or equal to X1, wherein X2 is determined based on a first parameter and whether the counter is greater than a threshold, wherein the threshold is a positive integer.

Abstract: In an aspect of the disclosure, a method, a computer-readable medium, and an apparatus are provided. The apparatus may be configured to receive a plurality of combined signals. Each combined signal may be on a tone of a plurality of tones. The apparatus may be configured to determine a first pilot signal on a first tone of the plurality of tones. The apparatus may be configured to generate an interference-reduced signal for the first tone by canceling the determined first pilot signal from a first combined signal on the first tone.