Abstract: First transmission power can be determined (1110) for a first PRACH preamble in a 2-step random access procedure based on a first set of power control parameters. The first PRACH preamble can be transmitted (1120) in the 2-step random access procedure based on the first transmission power. A determination can be made (1130) to switch from the 2-step random access procedure to a 4-step random access procedure. Second transmission power can be determined (1140) based on the first set of power control parameters and a second set of power control parameters for a subsequent second PRACH preamble transmission for the 4-step random access procedure. The subsequent second PRACH preamble can be transmitted (1150) in the 4-step random access procedure based on the second transmission power.

Abstract: Apparatuses, methods, and systems are disclosed for uplink power control. One method includes: receiving a message that configures a set of resources that each includes a downlink resource or an uplink sounding resource and is associated with an uplink transmission beam pattern; receiving scheduling information for an uplink transmission that is associated with a resource of the set of resources; determining an uplink transmission beam pattern associated with the resource; determining a configured maximum output power for the uplink transmission beam pattern that is based on an antenna array property associated with the uplink transmission beam pattern; determining a transmit power for the uplink transmission based on the configured maximum output power; and performing the uplink transmission using the uplink transmission beam pattern based on the transmit power.

Abstract: Apparatuses, methods, and systems are disclosed for efficient cross-carrier scheduling of multiple slots. One apparatus includes a transceiver and a processor coupled with the transceiver, the processor configured to cause the apparatus to transmit a first control signal to a remote unit, the first control signal indicating a maximum number of HARQ processes, and to transmit a second control signal to the remote unit, where the second control signal is transmitted on a first carrier and where the second control signal schedules a first number of slots on a second carrier. The processor aggregates every two or more of the scheduled first number of slots to a single HARQ process in response to the first number being larger than the maximum number of HARQ processes.

Abstract: Apparatuses, methods, and systems are disclosed for transmissions based on a type of collision. One method (400) includes determining (402) that a first transmission resource corresponding to a first user equipment preempts a second transmission resource corresponding to a second user equipment as a result of a collision between the first transmission re-source and the second transmission resource in a shared resource pool. The method (400) includes transmitting (404), from the second user equipment, a request for resource reselection and activation in response to a type of collision being a periodic collision or a series collision; or transmitting, from the second user equipment, the request for resource reselection in response to the type of collision being a one-time collision.

Abstract: Apparatuses, methods, and systems are disclosed for transmitting and/or receiving system information for changing a configuration. One apparatus includes a receiver that: receives first system information for a first configuration; and receives second system information for a second configuration based on the first configuration. The second system information includes changes to the first configuration without repeating information common to the first and second configurations.

Abstract: Apparatuses, methods, and systems are disclosed for multiple resource allocation mode configurations. One method includes receiving information indicating a plurality of resource allocation mode configurations. Each resource allocation mode configuration corresponds to a logical channel of a plurality of logical channels. The method includes determining a plurality of data transmission scheduling modes for the plurality of logical channels. Each data transmission scheduling mode corresponds to a logical channel of the plurality of logical channels based a resource allocation mode configuration of the logical channel, and each data transmission scheduling mode comprises: a first scheduling mode; a second scheduling mode different from the first scheduling mode; or a third scheduling mode comprising the first scheduling mode and the second scheduling mode. The method includes transmitting a buffer status report based on the plurality of the data transmission scheduling modes.

Abstract: Apparatuses, methods, and systems are disclosed for sidelink HARQ operation. One apparatus 400 includes a transceiver 425 that receives 605 a SL grant for data transmission using SL resources, the SL grant having a first HARQ process identifier. The apparatus 400 includes a processor 405 that selects 610 a second HARQ process identifier for the data transmission using SL resources. Via the transceiver 425, the processor 405 transmits 615 SCI containing the second HARQ process identifier and transmits 620 the SL data using the SL resources.

Abstract: Apparatuses, methods, and systems are disclosed for responding to a new data indicator for a hybrid automatic repeat request process. One method includes determining whether a current new data indicator in a current sidelink grant matches a last received new data indicator in a last received sidelink grant for a first hybrid automatic repeat request process. The method includes, in response to determining that the current new data indicator does not match the last received new data indicator, determining whether a negative acknowledgement has been transmitted in response to the last received sidelink grant.

Abstract: A lack of a valid dedicated uplink control channel resource configuration can be ascertained by a device. A downlink message can be received by the device, where the downlink message can be based on a device identity of the device. In response to receiving the downlink message, a hybrid automatic repeat request acknowledgement feedback can be transmitted by the device on an uplink control channel. The uplink control channel can be from a set of uplink control channels, where each uplink control channel in the set of uplink control channels can have a same number of symbols.

Abstract: Apparatuses, methods, and systems are disclosed for autonomous bandwidth part switching. One method includes determining that a channel parameter corresponding to an active uplink bandwidth part of a serving cell is greater than a predetermined value at a time in which the active uplink bandwidth part is a first bandwidth part. The method includes, in response to determining that the channel parameter is greater than the predetermined value, autonomously switching the active uplink bandwidth part from the first uplink bandwidth part to a second uplink bandwidth part configured for the serving cell, wherein switching the active uplink bandwidth part comprises deactivating the first uplink bandwidth part.

Abstract: Apparatuses, methods, and systems are disclosed for determining a priority order based on uplink transmission parameters. One apparatus includes a processor that: indicates uplink transmission parameters to a medium access control layer, wherein the uplink transmission parameters correspond to an uplink grant, the uplink transmission parameters comprise an indication of a numerology and an uplink transmission duration, and the numerology comprises a subcarrier spacing; and assigns, by the medium access control layer, resources allocated by the uplink grant to the logical channels based on the uplink transmission parameters and a logical channel priority of the plurality of logical channels, wherein each logical channel of the plurality of logical channels is configured with a set of numerologies allowed by the respective logical channel, a maximum uplink transmission duration, and information indicating whether a data of the respective logical channel is allowed to be transmitted on a configured grant.

Abstract: Apparatuses, methods, and systems are disclosed for transmission using an adapted downlink waveform type. One method (3400) includes dynamically or semi-statically adapting (3402) a downlink waveform type at a network unit, wherein: the downlink waveform type comprises a multi-carrier waveform, a single-carrier waveform, or a combination thereof; and the downlink waveform type is for a transmission comprising a synchronization signal block transmission, a physical downlink scheduled channel transmission, or a combination thereof. The method (3400) includes transmitting (3404) the transmission using a downlink waveform pattern comprising the downlink waveform type.

Abstract: Apparatuses, methods, and systems are disclosed for sidelink failure detection and recovery. One method includes receiving information indicating a sidelink failure detection resource set corresponding to at least one configured sidelink bandwidth part. The method includes determining a radio link quality of the at least one configured sidelink bandwidth part based on the sidelink failure detection resource set. The method includes detecting a sidelink failure based on the radio link quality. The method includes initiating a sidelink failure recovery procedure based on the sidelink failure.

Abstract: Apparatuses, methods, and systems are disclosed for determining data transmission preemption. One method (400) includes receiving (402) a first uplink grant for a first hybrid automatic repeat request process. The method (400) includes determining (404) that a first data transmission corresponding to the first uplink grant is preempted by a second data transmission corresponding to a second uplink grant for a second hybrid automatic repeat request process. The method (400) includes, in response to determining that the first data transmission is preempted by the second data transmission: not generating (406) a transport block for the first uplink grant; and flushing a hybrid automatic repeat request buffer corresponding to the first hybrid automatic repeat request process.

Abstract: Apparatuses, methods, and systems are disclosed for power headroom report generation. One method includes aggregating multiple serving cells. The method includes determining that a power headroom report is triggered. The method includes determining that an uplink resource for a new transmission on a serving cell of the multiple serving cells is allocated at a first time after the power headroom report is triggered. The method includes determining a power headroom value for each serving cell of the multiple serving cells being activated based on information received prior to and including a predetermined time before the start of the uplink resource at the first time. The method includes generating a power headroom report medium access control control element including at least the power headroom value for each serving cell of the multiple serving cells being activated.

Abstract: Apparatuses, methods, and systems are disclosed for radio link failure recovery. One method includes determining, at a first user equipment, an occurrence of a radio link failure with a second user equipment. The method includes transmitting information indicating the radio link failure. The method includes starting a timer in response to transmitting the information indicating the radio link failure. The method includes, after starting the timer and before the timer expires, transmitting one or more messages to the second user equipment requesting feedback from the second user equipment.

Abstract: Apparatuses, methods, and systems are disclosed for providing fallback assistance information to a RAN node. One apparatus includes a transceiver that sends a service request, wherein the service request requires fallback to at least one of: a different RAT and a different system generation, wherein the service request indicates that service fallback is required and receives a connection release message, where the connection release message includes redirection information for the service fallback, the redirection information including a target RAT cell and a target system. The apparatus includes a processor that selecting a NAS protocol from a plurality of NAS protocols supported by the remote unit, wherein the selection is based on the target system and connects to the target RAT and the target system using a procedure of the selected NAS protocol.

Abstract: Apparatuses, methods, and systems are disclosed for directional transmission/reception of groupcast and unicast communication. One apparatus (800) includes a transceiver (825) that performs (1005) a plurality of sidelink transmissions (115, 501) with different spatial directions and receives (1015) a feedback transmission from a receiving UE. Here, each of the plurality of sidelink transmissions (115, 501) is carried out from one of a plurality of antenna panels (407), where the sidelink transmissions contain an embedded sidelink reference signal. The apparatus (800) includes a processor (805) that determines (1020) a best antenna panel (407) for sidelink transmission based on the received feedback transmission. An apparatus is also disclosed that identifies a set of candidate sidelink resources and measures signal strength using a plurality of beams at a plurality of antenna panels.

Abstract: Apparatuses, methods, and systems are disclosed for uplink transmission power allocation. One method includes receiving a configuration of two uplink carriers. The method includes determining whether a configuration parameter corresponding to at least one of a first uplink carrier and a second uplink carrier for a serving cell is configured. The method includes determining whether a total user equipment transmit power for uplink transmissions in a transmission occasion exceeds a maximum user equipment output power, wherein the uplink transmissions comprise a first uplink transmission on the first uplink carrier and a second uplink transmission. The method includes, in response to determining that the total user equipment transmit power for uplink transmissions in the transmission occasion exceeds the maximum user equipment output power, determining a first priority level for the first uplink transmission and a second priority level for the second uplink transmission.

Abstract: Apparatuses, methods, and systems are disclosed for multiple zone configuration. One method includes configuring a first device with first information indicating a first zone configuration comprising a first plurality of zones. The method includes configuring the first device with second information indicating a second zone configuration comprising a second plurality of zones, wherein: a first area corresponding to zones of the first plurality of zones is smaller than a second area corresponding to zones of the second plurality of zones; and the first plurality of zones corresponds to a same geographical area as the second plurality of zones.