Patent ID: 8489139

Claim:
A power sharing method for communication systems of at least two modes that share a power amplifier, the method comprising: determining whether to perform power sharing among communication systems of different modes, according to a power demand of a communication system of at least one mode among the communication systems of different modes sharing a power amplifier, the determining including: (a) within a preset period, obtaining a sharable remaining power of a communication system of a first mode, according to a power demand of the communication system of the first mode and an available power of the communication system of the first mode; (b) deciding whether to agree to receive the sharable remaining power of the communication system of the first mode, according to a power demand of communication systems of one or more other modes; and (c) determining to perform power sharing among the communication systems of different modes, if the sharable remaining power of the communication system of the first mode satisfies a preset sharing condition and the communication systems of one or more other modes agree to receive the sharable remaining power of the communication system of the first mode; and adjusting an available power of communication systems of one or more modes if it is determined to perform power sharing among the communication systems of different modes.