Patent ID: 9374786
Filing Date: 2016-06-21
CPC Classification: H04W,Y02D

Claim Text:
1. A method of operating a power amplifier in a multi-subscriber identification module (SIM) multi-active wireless communication device when a first radio frequency (RF) resource supporting active communication to a communication network associated with a first SIM is communicating at the same time as a second RF resource supporting a voice call in discontinuous transmission (DTX) mode with a communication network associated with a second SIM, the method comprising: monitoring the voice call supported by the second RF resource for silence periods; operating the power amplifier in a first power-saving mode during silence periods on the voice call supported by the second RF resource; and operating the power amplifier in a second power-saving mode when the voice call supported by the second RF resource is not in a silence period, wherein the second power-saving mode provides less reduction in power consumption than the first power-saving mode.