Determining a power headroom report

An apparatus comprising:

• a processor that determines a power headroom report for an activated serving cell for transmission on a physical uplink shared channel resource corresponding to a configured grant;
• and
• a transmitter that transmits the power headroom report on the physical uplink shared channel resource, wherein:
• the processor determining the power headroom report for the activated serving cell comprises the processor determining whether the power headroom report is based on a real transmission or a reference format based on signaling for configured grants and downlink control information received until a first uplink symbol of the physical uplink shared channel resource minus a physical uplink shared channel preparation procedure time determined (Tproc,2) for the configured grant;
• and
• the physical uplink shared channel preparation procedure time determined (Tproc,2) is computed based on:
• a first parameter set to zero;
• and
• a subcarrier spacing of an active downlink bandwidth part of a scheduling cell for the configured grant.

A method comprising:

• receiving a power headroom report for an activated serving cell on the physical uplink shared channel resource corresponding to a configured grant, wherein:
• the power headroom report for the activated serving cell is determined based on a real transmission or a reference format based on signaling for configured grants and downlink control information received until a first uplink symbol of the physical uplink shared channel resource minus a physical uplink shared channel preparation procedure time determined (Tproc,2) for the configured grant;
• and
• the physical uplink shared channel preparation procedure time determined (Tproc,2) is computed based on:
• a first parameter set to zero;
• and
• a subcarrier spacing of an active downlink bandwidth part of a scheduling cell for the configured grant.

An apparatus comprising:

• a receiver that receives a power headroom report for an activated serving cell on the physical uplink shared channel resource corresponding to a configured grant, wherein:
• the power headroom report for the activated serving cell is determined based on a real transmission or a reference format based on signaling for configured grants and downlink control information received until a first uplink symbol of the physical uplink shared channel resource minus a physical uplink shared channel preparation procedure time determined (Tproc,2) for the configured grant;
• and
• the physical uplink shared channel preparation procedure time determined (Tproc,2) is computed based on:
• a first parameter set to zero;
• and
• a subcarrier spacing of an active downlink bandwidth part of a scheduling cell for the configured grant.