US 12,082,125 B1
Power headroom reporting for multiple universal subscriber identity modules
Maomao Chen Larsson, Lund (SE); Christian Bergljung, Lund (SE); and Rongyan Lin, Sollentuna (SE)
Assigned to Telefonaktiebolaget LM Ericsson (Publ), Stockholm (SE)
Filed by Telefonaktiebolaget LM Ericsson (publ), Stockholm (SE)
Filed on Apr. 21, 2023, as Appl. No. 18/304,862.
Int. Cl. H04W 52/36 (2009.01); H04W 52/14 (2009.01); H04W 52/42 (2009.01); H04W 84/04 (2009.01)
CPC H04W 52/365 (2013.01) [H04W 52/146 (2013.01); H04W 52/42 (2013.01); H04W 84/042 (2013.01)] 26 Claims
OG exemplary drawing
 
1. A method implemented by a wireless device comprising a at least two Universal Subscriber Identity Modules, USIMs, and at least two uplink transmitters, UL Tx, and configured to communicate with a first public mobile network, PLMN, and a second PLMN different from the first PLMN, the method comprising:
transmitting first data to the first PLMN using a first USIM and the at least two UL Tx;
transmitting a first power headroom report, PHR, to the first PLMN based on the first data, the first PHR comprising a configured first maximum output power for uplink transmission for the wireless device;
transmitting second data to the second PLMN using a second USIM and one of the at least two UL Tx used for transmitting the first data; and
transmitting a second PHR to the first PLMN based on the second data, the second PHR comprising a configured second maximum output power for uplink transmission for the wireless device, the configured second maximum output power for uplink transmission being less than the first maximum output power for uplink transmission.