Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive a response message associated with a random access message, wherein the response message includes an identifier of the UE; select a format of an uplink channel or an uplink signal for acknowledging successful decoding of the response message; determine a transmit power for hybrid automatic repeat request (HARQ) acknowledgment (ACK) information based at least in part on at least one of: a message type of the response message, a mode of random access associated with the random access message, a power control configuration used by a previous transmission of the random access message, or the format of the uplink channel or the uplink signal; and transmit the HARQ ACK information using a power control procedure based at least in part on the transmit power. Numerous other aspects are provided.

A method performed by a wireless device is described herein. The wireless device operates in a wireless communications network. The wireless device provides a message to be sent to a network node operating in the wireless communications network. The message is a first scheduled message to be sent to the network node in a random access procedure. The message comprises a first indicator of a type of the message. The type of message has: a) a fixed size SDU, and b) a one byte header comprising the first indicator and lacking a second indicator of a length of a payload. The wireless device also initiates sending the provided message to the network node. Also described is a method performed by the network node receiving and initiating processing the message, based on the first indicator.

User equipment includes a transmission unit that performs uplink transmissions to a base station apparatus via a plurality of uplink carriers; and a control unit that changes a transmission power value of a random access channel to be transmitted with one or more of the plurality of uplink carriers when priority levels are assigned to the respective uplink transmissions on the plurality of uplink carriers; wherein, when the transmission unit fails to transmit a random access preamble with the transmission power value of the random access channel that is changed by the control unit and the transmission unit retransmits a random access preamble, the control unit changes transmission power control of the random access preamble to be transmitted from normal transmission power control.

A testing method for determining radiation performance of a device under test (DUT) is disclosed. The testing method comprises the following steps. The DUT is arranged at a first orientation. A first effective isotropic radiated power (EIRP) and a first effective isotropic sensitivity (EIS) of the DUT are measured at the first orientation. The DUT is arranged at a second orientation different from the first orientation, and a second EIRP of the DUT is measured at the second orientation. A second EIS of the DUT is measured at the second orientation according to a correlation between the first EIRP, the first EIS and the second EIRP.

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.

Power control for a bidirectional Sidelink (SL) is provided. Solutions proposed herein limit the Physical SL Feedback Channel (PSFCH) transmit power level to that of the power level used for Physical SL Shared Channel (PSSCH) so as to prohibit too high transmit power for the PSFCH. In addition, if the difference between the PSSCH and PSFCH exceeds a preconfigured threshold (e.g., the PSFCH is too low), a Receiver (Rx) User Equipment (UE) can take preventive actions that ensure sufficient quality over the PSFCH. In further embodiments, both UEs continuously maintain the estimated SL Path Loss (PL) and transmit a single SL Channel State Information Reference Signal (SCSI-RS), and associated measurement reports rather than triggering new SCSI-RS transmissions and measurement reports for each PSSCH and associated PSFCH channel per SL (e.g., PC5) connection.

Techniques for determining power levels of radios, including a time domain duplexing (TDD) system, in shared frequency spectrum is provided. A TDD radio, of the TDD system, in a neighborhood having a largest interference contribution in the frequency spectrum at the point. Transmit power levels are determined for (a) the selected TDD radio, (b) other radios in the neighborhood that are not part of the TDD system, and (c) at least one radio in the TDD system that is not the TDD radio having the largest interference contribution in the frequency spectrum. Thus, interference margin may be fairly allocated to radios in neighborhood(s) about protection points.

A Fifth Generation New Radio (5GNR) User Equipment (UE) controls power consumption. In the 5GNR UE, control circuitry selects an initial 5GNR transmit power and signals the initial 5GNR transmit power to a 5GNR radio. The 5GNR radio transmits initial 5GNR signals at the initial 5GNR transmit power. The control circuitry identifies an excessive Uplink (UL) Hybrid Automatic Repeat Request (HARQ) Block Error Rate (BLER), and in response, selects a lower 5GNR transmit power and signals the lower 5GNR transmit power to the 5GNR radio. The 5GNR radio transmits subsequent 5GNR signals at the lower 5GNR transmit power. The UL HARQ BLER may be for a Long Term Evolution (LTE) access node.

Apparatuses, methods, and systems are disclosed for transmission power prioritization. One apparatus includes a processor coupled to a memory and a transceiver, where the processor is configured to identify a first pending transmission corresponding to a non-supplementary uplink carrier; identify a second pending transmission corresponding to a supplementary uplink carrier, wherein the first and second pending transmissions at least partially overlap in time; prioritize power allocation to the non-supplementary uplink carrier in response to the non-supplementary uplink carrier being configured to transmit a PUCCH; prioritize power allocation to the supplementary uplink carrier in response to the supplementary uplink carrier being configured to transmit the PUCCH; and prioritize power allocation to the non-supplementary uplink carrier in response to neither the supplementary uplink carrier nor the non-supplementary uplink carrier being configured to transmit the PUCCH.

Apparatuses, methods, and systems are disclosed for transmission power prioritization. One apparatus includes a processor coupled to a memory and a transceiver, where the processor is configured to identify a first pending transmission corresponding to a non-supplementary uplink carrier; identify a second pending transmission corresponding to a supplementary uplink carrier, wherein the first and second pending transmissions at least partially overlap in time; prioritize power allocation to the non-supplementary uplink carrier in response to the non-supplementary uplink carrier being configured to transmit a PUCCH; prioritize power allocation to the supplementary uplink carrier in response to the supplementary uplink carrier being configured to transmit the PUCCH; and prioritize power allocation to the non-supplementary uplink carrier in response to neither the supplementary uplink carrier nor the non-supplementary uplink carrier being configured to transmit the PUCCH.