A feedback information transmission method and apparatus, a device, and a medium are provided. The method includes: receiving at least one piece of transmission information transmitted on at least one physical sidelink channel, where one piece of transmission information is transmitted on each physical sidelink channel; determining power information corresponding to each of at least one piece of feedback information that corresponds to the at least one piece of transmission information; and transmitting corresponding feedback information on at least one physical sidelink feedback channel resource based on the power information corresponding to each piece of feedback information.

The present invention provides a V2X operation method implemented by a V2X (vehicle-to-X) terminal in a wireless communication system, the method characterized by: if a V2X transmission operation and a wide area network (WAN) transmission operation overlap in a time domain, determining whether or not the V2X transmission operation and the WAN transmission operation are performed on a same carrier; and performing the V2X transmission operation on the basis of the determination, wherein, if the V2X transmission operation and the WAN transmission operation are performed on different carriers, the V2X transmission operation is performed on the basis of a transmission power applied to the V2X transmission operation or, if the V2X transmission operation and the WAN transmission operation are performed on the same carrier, the V2X transmission operation is performed on the basis of a priority applied to the V2X transmission operation.

A wireless device determines a calculated power for a plurality of signals comprising: a first sounding reference signal (SRS) configured for transmission in a subframe of a licensed assisted access (LAA) cell type and a second SRS configured for transmission in the subframe of a licensed cell type. The wireless device drops or scales at least one of the first SRS or the second SRS based on a transmit power priority. The transmit power priority considers whether the first SRS or the second SRS is configured for transmission on the licensed cell type or the unlicensed cell type.

Systems and methods are disclosed for permitting higher transmit power at a mobile device. In one embodiment, a method is disclosed, comprising: receiving, at a base station, an emergency request from a mobile device; sending, from the base station to a neighboring base station, a high power reservation message to reserve one or more radio resource blocks at the neighboring base station for non-use; and sending, from the base station to the mobile device, a resource allocation including the one or more radio resource blocks and a power control message requesting high transmit power.

Various aspects described herein relate to techniques for uplink transmissions in wireless communication systems. In an aspect, a method includes receiving, by a user equipment (UE), hopping information for two consecutive symbols, generating, by the UE, a first symbol of the two consecutive symbols using a format, generating, by the UE, a second symbol of the two consecutive symbols based on the format and the hopping information, and transmitting, by the UE, the two consecutive symbols in an uplink signal.

Methods and apparatus are provided for scheduling transmissions of data channels, control channels, or random access channels using downlink control information (DCI) formats. A DCI format can configure a transmission of one or multiple data channels over respective one or multiple transmission time intervals. A first DCI format can configure the parameters for a channel transmission and a second DCI format can trigger the channel transmission and indicate respective one or more transmission time intervals.

Provided is a method for a terminal to transmit sidelink signals in a wireless communication system according to one embodiment of the present invention, comprising the steps of: determining transmission power of a sidelink packet in each of a plurality of carriers; and on the basis of the determined transmission power, transmitting the sidelink signals through one or more carriers of the plurality of the carriers, wherein the transmission power is determined on the basis of a priority of the sidelink packet scheduled for transmission on each of the plurality of carriers, a sum of the transmission power of the sidelink packet scheduled for transmission on each of the plurality of carriers, and maximum transmission power of the terminal. The UE is capable of communicating with at least one of another UE, a UE related to an autonomous driving vehicle, the BS or a network.

Power control in new radio (NR)-to-NR dual connectivity communications is disclosed. A UE, compatible for NR-to-NR dual connectivity, may receive a transmit power configuration and a power allocation configuration. The transmit power configuration identifies the designated reserved power for each of the cell groups participating in the dual connectivity communication. The power allocation configuration identifies to the UE whether to operate access to excess transmission power by either mode 1 rules, which may introduce phase discontinuity into ongoing transmissions, or mode 2 rules, which use a look-ahead functionality to trigger joint determination and allocation of transmission power among known uplink transmissions over a given transmission duration. After the determined transmission power allocation has been made, the UE transmits the dual connectivity transmissions according to the determined power.

Apparatus and methods are disclosed for adaptive transmit power control for vehicle communication. An example disclosed vehicle includes a driving assistance unit and a communication module. The driving assistance unit determines an expected speed of target vehicles in the vicinity of the vehicle. The communication module determines a message type of a message received from a subsystem of the vehicle. Additionally, the communication module broadcasts the message at a power level. The power level is based on the message type and the expected speed of target vehicles.

Certain aspects of the present disclosure provide techniques that may be used to manage transmission power at a UE, for example, based on a specific absorption rate (SAR) margin and/or hybrid automatic retransmission request (HARQ) retransmission count.