Unused transmission occasion uplink control information and power headroom report handling in uplink carrier aggregation

Inventors: Diana Maamari (San Diego, CA); Huilin Xu (Temecula, CA); Ahmed Attia Abotabl (San Diego, CA); Linhai He (San Diego, CA)

H04W72/1268 H04L5/001 H04W52/365 H04W72/21

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Quick Facts

Patent No.: US 12677276
App. No.: 18/543,500
Granted: Jul 7, 2026
Kind: B2

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Abstract

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive, from a network node, an uplink grant that schedules a dynamic grant physical uplink shared channel (DG-PUSCH) on a first component carrier. The UE may transmit, to the network node, unused transmission occasion uplink control information (UTO-UCI) indicating skipping of a configured grant physical uplink shared channel (CG-PUSCH) on a second component carrier in a future CG-PUSCH occasion that overlaps in time with the DG-PUSCH scheduled on the first component carrier. The UE may transmit, to the network node, the DG-PUSCH on the first component carrier, wherein the DG-PUSCH carries a power headroom report (PHR) associated with a power headroom calculation based on an impact of the UTO-UCI indicating skipping of the CG-PUSCH. Numerous other aspects are described.

Claims (38)

1 . A method of wireless communication performed by a user equipment (UE), comprising:

receiving, from a network node, an uplink grant that schedules a dynamic grant physical uplink shared channel (DG-PUSCH) on a first component carrier;

transmitting, to the network node, unused transmission occasion uplink control information (UTO-UCI) indicating skipping of a configured grant physical uplink shared channel (CG-PUSCH) on a second component carrier in a future CG-PUSCH occasion that overlaps in time with the DG-PUSCH scheduled on the first component carrier; and

transmitting, to the network node, the DG-PUSCH on the first component carrier, wherein the DG-PUSCH carries a power headroom report (PHR) associated with a power headroom calculation based on an impact of the UTO-UCI indicating skipping of the CG-PUSCH.

2 . The method of claim 1 , wherein the power headroom calculation is based on the impact of the UTO-UCI indicating skipping of the CG-PUSCH based at least in part on a time difference between the UTO-UCI and a first symbol of the DG-PUSCH satisfying a threshold.

3 . The method of claim 2 , wherein the threshold has a value associated with a physical uplink shared channel (PUSCH) preparation time.

4 . The method of claim 2 , wherein the threshold has a value associated with a time offset.

5 . The method of claim 4 , wherein the value associated with the time offset is defined in one or more wireless communication standards.

6 . The method of claim 4 , wherein the value associated with the time offset is a function of a physical uplink shared channel (PUSCH) preparation time.

7 . The method of claim 1 , further comprising:

receiving, from the network node, radio resource control (RRC) signaling that configures a PHR reporting mode enabling the power headroom calculation to be based on the impact of the UTO-UCI indicating skipping of the CG-PUSCH.

8 . The method of claim 1 , further comprising:

transmitting, to the network node, information that indicates a capability to support a PHR reporting mode in which the power headroom calculation is based on the impact of the UTO-UCI indicating skipping of the CG-PUSCH.

9 . The method of claim 1 , further comprising:

scaling power associated with the DG-PUSCH transmitted on the first component carrier based on the impact of the UTO-UCI indicating skipping of the CG-PUSCH.

10 . The method of claim 9 , wherein the power associated with the DG-PUSCH transmitted on the first component carrier is scaled based on the impact of the UTO-UCI indicating skipping of the CG-PUSCH based at least in part on a time difference between the UTO-UCI and a first symbol of the DG-PUSCH satisfying a threshold.

11 . A user equipment (UE) for wireless communication, comprising:

one or more memories; and

one or more processors, coupled to the one or more memories, configured to cause the UE to:

receive, from a network node, an uplink grant that schedules a dynamic grant physical uplink shared channel (DG-PUSCH) on a first component carrier;

transmit, to the network node, unused transmission occasion uplink control information (UTO-UCI) indicating skipping of a configured grant physical uplink shared channel (CG-PUSCH) on a second component carrier in a future CG-PUSCH occasion that overlaps in time with the DG-PUSCH scheduled on the first component carrier; and

transmit, to the network node, the DG-PUSCH on the first component carrier, wherein the DG-PUSCH carries a power headroom report (PHR) associated with a power headroom calculation based on an impact of the UTO-UCI indicating skipping of the CG-PUSCH.

12 . The UE of claim 11 , wherein the power headroom calculation is based on the impact of the UTO-UCI indicating skipping of the CG-PUSCH based at least in part on a time difference between the UTO-UCI and a first symbol of the DG-PUSCH satisfying a threshold.

13 . The UE of claim 12 , wherein the threshold has a value associated with a physical uplink shared channel (PUSCH) preparation time.

14 . The UE of claim 12 , wherein the threshold has a value associated with a time offset.

15 . The UE of claim 14 , wherein the value associated with the time offset is defined in one or more wireless communication standards or a function of a physical uplink shared channel (PUSCH) preparation time.

16 . The UE of claim 11 , wherein the one or more processors are further configured to cause the UE to:

receive, from the network node, radio resource control (RRC) signaling that configures a PHR reporting mode enabling the power headroom calculation to be based on the impact of the UTO-UCI indicating skipping of the CG-PUSCH.

17 . The UE of claim 11 , wherein the one or more processors are further configured to cause the UE to:

transmit, to the network node, information that indicates a capability to support a PHR reporting mode in which the power headroom calculation is based on the impact of the UTO-UCI indicating skipping of the CG-PUSCH.

18 . The UE of claim 11 , wherein the one or more processors are further configured to cause the UE to:

scale power associated with the DG-PUSCH transmitted on the first component carrier based on the impact of the UTO-UCI indicating skipping of the CG-PUSCH.

19 . The UE of claim 18 , wherein the power associated with the DG-PUSCH transmitted on the first component carrier is scaled based on the impact of the UTO-UCI indicating skipping of the CG-PUSCH based at least in part on a time difference between the UTO-UCI and a first symbol of the DG-PUSCH satisfying a threshold.

20 . A non-transitory computer-readable medium storing a set of instructions for wireless communication, the set of instructions comprising:

one or more instructions that, when executed by one or more processors of a user equipment (UE), cause the UE to:

receive, from a network node, an uplink grant that schedules a dynamic grant physical uplink shared channel (DG-PUSCH) on a first component carrier;