Portable device with subscriber identity cards and method for controlling transmission power thereof
First Claim
1. A portable device, comprising:
- a first wireless module;
a second wireless module;
a first subscriber identity card coupled to the first wireless module, camping on a cell via the first wireless module;
a second subscriber identity card coupled to the second wireless module, camping on the same cell or a different cell via the second wireless module; and
a battery,wherein a first transmission power of one of the first and second wireless modules is maintained, and a second transmission power of another one of the first and second wireless modules is dynamically adjusted according to a variation in a voltage of the battery, andwherein when the voltage of the battery is regained, the second transmission power is increased.
1 Assignment
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Accused Products
Abstract
A portable device is provided. The portable device comprises a first wireless module, a second wireless module, a first subscriber identity card coupled to the first wireless module, a second subscriber identity card coupled to the second wireless module and a battery. The first subscriber identity card camps on a cell via the first wireless module. The second subscriber identity card camps on the same cell or a different cell via the second wireless module. A first transmission power of one of the first and second wireless modules is maintained, and a second transmission power of another one of the first and second wireless modules is dynamically adjusted according to a variation in a voltage of the battery.
5 Citations
13 Claims
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1. A portable device, comprising:
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a first wireless module; a second wireless module; a first subscriber identity card coupled to the first wireless module, camping on a cell via the first wireless module; a second subscriber identity card coupled to the second wireless module, camping on the same cell or a different cell via the second wireless module; and a battery, wherein a first transmission power of one of the first and second wireless modules is maintained, and a second transmission power of another one of the first and second wireless modules is dynamically adjusted according to a variation in a voltage of the battery, and wherein when the voltage of the battery is regained, the second transmission power is increased. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method for controlling transmission power of a portable device, wherein the portable device comprises a battery, a first wireless module camping on a cell with a first subscriber identity card, and a second wireless module camping on the same cell or a different cell with a second subscriber identity card, comprising:
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detecting a voltage of the battery when first and second communication services are provided by the portable device via the first and second subscriber identity cards, respectively; determining a slave wireless module between the first and second wireless modules according to the communication services; and dynamically adjusting a transmission power of the slave wireless module according to the detected voltage of the battery, wherein when the detected voltage of the battery is regained, the transmission power of the slave wireless module is increased and a transmission power of a master wireless module between the first and second wireless modules is maintained. - View Dependent Claims (10, 11, 12, 13)
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Specification