US 12,335,879 B2
Power headroom reporting for uplink carrier aggregation communications
Gokul Sridharan, Sunnyvale, CA (US); Kazuki Takeda, Tokyo (JP); Peter Gaal, San Diego, CA (US); and Wanshi Chen, San Diego, CA (US)
Assigned to QUALCOMM Incorporated, San Diego, CA (US)
Filed by QUALCOMM Incorporated, San Diego, CA (US)
Filed on Aug. 25, 2022, as Appl. No. 17/895,805.
Prior Publication US 2024/0073830 A1, Feb. 29, 2024
Int. Cl. H04W 52/00 (2009.01); H04W 52/14 (2009.01); H04W 52/36 (2009.01)
CPC H04W 52/365 (2013.01) [H04W 52/146 (2013.01)] 30 Claims
OG exemplary drawing
 
1. A method for wireless communications at a user equipment (UE), comprising:
receiving a first message indicating a plurality of component carriers are configured for communications at the UE;
determining a first transmission power available for uplink carrier aggregation transmissions by the UE across the plurality of component carriers during a transmission occasion; and
transmitting, via at least a first component carrier of the plurality of component carriers, a power headroom report comprising a carrier aggregation power headroom parameter, wherein a value of the carrier aggregation power headroom parameter is based at least in part on the first transmission power available across the plurality of component carriers during the transmission occasion and a second transmission power associated with the uplink carrier aggregation transmissions via at least one component carrier of the plurality of component carriers during the transmission occasion.