US 12,219,501 B2
Transmit power prioritization in inter-band carrier aggregation
Fang Yuan, Beijing (CN); Yan Zhou, San Diego, CA (US); and Tao Luo, San Diego, CA (US)
Assigned to QUALCOMM Incorporated, San Diego, CA (US)
Appl. No. 17/800,349
Filed by QUALCOMM Incorporated, San Diego, CA (US)
PCT Filed Feb. 25, 2020, PCT No. PCT/CN2020/076576
§ 371(c)(1), (2) Date Aug. 17, 2022,
PCT Pub. No. WO2021/168648, PCT Pub. Date Sep. 2, 2021.
Prior Publication US 2023/0065671 A1, Mar. 2, 2023
Int. Cl. H04W 52/36 (2009.01); H04B 1/3827 (2015.01)
CPC H04W 52/367 (2013.01) [H04B 1/3838 (2013.01)] 38 Claims
OG exemplary drawing
 
1. A method of wireless communication using inter-band carrier aggregation at a user equipment (UE), comprising:
determining to reduce a value of a measured configured maximum user equipment (UE) output power (PUMAX);
determining a priority order in which to change a value of a power management maximum power reduction (P-MPR) of each component carrier f of serving cell c having a non-zero granted transmission power;
reducing a transmitter output power of each carrier f of serving cell c having the non-zero granted transmission power according to the determined priority order by increasing a P-MPR of the carrier f of serving cell c;
determining an electromagnetic power density exposure level;
determining if the electromagnetic power density exposure level is at or below a predetermined maximum permissible exposure (MPE) level; and
returning to reducing the transmitter output power if the electromagnetic power density exposure level is greater than the predetermined MPE level.