Patent ID: 9141401
Filing Date: 2015-09-22
Classification: G06F,H04W,Y02D

Abstract:
1. A method for switching system state in a portable terminal, the portable terminal comprising a first control device provided for a first system and a second control device provided for a second system, the first control device is a hardware control device different from a CPU of the first system and able to operate when the first system is in an inactive state, and the second control device is a hardware control device different from a CPU of the second system and able to operate when the second system is in an inactive state, a physical communication path is provided between the first and second control devices for communicating state information of the first and second systems, the method comprising: obtaining, by the second control device, state information of the first system, when at least one of the first system and the second system is in an inactive state, wherein the state information indicates whether the first system is currently in the active or inactive state; receiving, by the second control device, a system state switching event; switching, by the second control device based on the state information of the first system, the second system to a state corresponding to the state information of the first system.