US 12,250,644 B2
Electronic device for supporting dual connectivity, and method for controlling same
Uncheol Lee, Seoul (KR)
Assigned to LG ELECTRONICS INC., Seoul (KR)
Appl. No. 17/757,799
Filed by LG ELECTRONICS INC., Seoul (KR)
PCT Filed Jan. 29, 2020, PCT No. PCT/KR2020/001325
§ 371(c)(1), (2) Date Jun. 21, 2022,
PCT Pub. No. WO2021/153813, PCT Pub. Date Aug. 5, 2021.
Prior Publication US 2022/0361116 A1, Nov. 10, 2022
Int. Cl. H04W 52/34 (2009.01); H04W 52/14 (2009.01); H04W 52/36 (2009.01); H04W 52/38 (2009.01); H04W 52/52 (2009.01); H04W 76/16 (2018.01); H04W 76/25 (2018.01); H04W 88/06 (2009.01)
CPC H04W 52/346 (2013.01) [H04W 52/146 (2013.01); H04W 52/367 (2013.01); H04W 52/38 (2013.01); H04W 52/52 (2013.01); H04W 76/16 (2018.02); H04W 76/25 (2018.02); H04W 88/06 (2013.01)] 11 Claims
OG exemplary drawing
 
1. An electronic device comprising:
a plurality of antennas comprising at least one first antenna configured to transmit or receive signals according to a first communication scheme and at least one second antenna configured to transmit or receive signals according to a second communication scheme;
a plurality of power amplifiers connected to the plurality of antennas; and
a modem configured to, when the electronic device is simultaneously connected to a master cell group (MCG) corresponding to the first communication scheme and a secondary cell group (SCG) corresponding to the second communication scheme, control the plurality of power amplifiers such that transmission of a second uplink signal to be transmitted to the SCG is suspended when a transmission power of a first uplink signal transmitted to the MCG is greater than or equal to a preset maximum transmission power and configured to, when the transmission of the second uplink signal is suspended for a preset time, stop the transmission of the first uplink signal for a certain time, transmit the second uplink signal, and maintain connection to the SCG even when the transmission of the second uplink signal is suspended, and
wherein the modem determines whether a difference between a sum of the transmission power of the first uplink signal and the transmission power of the second uplink signal and the preset maximum transmission power is less than or equal to a certain level, and
when the transmission power of the first uplink signal is greater than or equal to the preset maximum transmission power while the sum of the transmission power of the first uplink signal and the transmission power of the second uplink signal is greater than or equal to the preset maximum transmission power, the modem suspends the transmission of the second uplink signal.