Communication apparatuses equipped with more than one subscriber identity card and capable of providing reliable communication quality
First Claim
1. A communication apparatus having at least one radio transceiver module, a first subscriber identity card and a second subscriber identity card, wherein the first subscriber identity card camps on a first cell belonging to a first wireless network via the radio transceiver module, and the second subscriber identity card camps on a second cell belonging to a second wireless network via the same radio transceiver module as the first subscriber identity card camps on, or a different radio transceiver module, the communication apparatus comprising:
- processor logic coupled to the first subscriber identity card, the second subscriber identity card and the radio transceiver module(s), receiving an apparatus originated communication request with a destination address;
processor logic comparing a signal strength of a first signal received from the first cell with a signal strength of a second signal received from the second cell; and
processor logic establishing a wireless communication with a peer device having the destination address through the cell with better signal strength.
2 Assignments
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Accused Products
Abstract
A communication apparatus is provided. The communication apparatus includes at least one radio transceiver module, a first subscriber identity card, a second subscriber identity card and a processor. The first subscriber identity card camps on a first cell belonging to a first wireless network via the same or different radio transceiver modules. The second subscriber identity card camps on a second cell belonging to a second wireless network via the same or different radio transceiver modules. The processor, coupled to the first subscriber identity card, the second subscriber identity card and the radio transceiver module(s), receives an apparatus originated communication request with a destination address, compares a signal strength of a first signal received from the first cell with a signal strength of a second signal received from the second cell and establishes a wireless communication with a peer device having the destination address through the cell with better signal strength.
20 Citations
38 Claims
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1. A communication apparatus having at least one radio transceiver module, a first subscriber identity card and a second subscriber identity card, wherein the first subscriber identity card camps on a first cell belonging to a first wireless network via the radio transceiver module, and the second subscriber identity card camps on a second cell belonging to a second wireless network via the same radio transceiver module as the first subscriber identity card camps on, or a different radio transceiver module, the communication apparatus comprising:
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processor logic coupled to the first subscriber identity card, the second subscriber identity card and the radio transceiver module(s), receiving an apparatus originated communication request with a destination address; processor logic comparing a signal strength of a first signal received from the first cell with a signal strength of a second signal received from the second cell; and processor logic establishing a wireless communication with a peer device having the destination address through the cell with better signal strength. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A communication apparatus having at least one radio transceiver module, a first subscriber identity card and a second subscriber identity card, wherein the first subscriber identity card camps on a first cell belonging to a first wireless network via the radio transceiver module, and the second subscriber identity card camps on a second cell belonging to a second wireless network via the same radio transceiver module as the first subscriber identity card camps on, or a different radio transceiver module, the communication apparatus comprising:
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processor logic coupled to the first subscriber identity card, the second subscriber identity card and the radio transceiver module(s), receiving an apparatus terminated communication request of the first subscriber identity card with an origination address from the first cell, processor logic comparing a signal strength of a first signal received from the first cell with a signal strength of a second signal received from the second cell; and processor logic transmitting a redirection request through the first cell to the first wireless network via the radio transceiver module to instruct the first wireless network to redirect the apparatus terminated communication request to the second subscriber identity card when the signal strength of the second signal is better than the signal strength of the first signal. - View Dependent Claims (8, 9, 10, 11, 12, 13)
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14. A communication apparatus having a single radio transceiver module, a first subscriber identity card and a second subscriber identity card, wherein the first subscriber identity card camping on a first cell belonging to a first wireless network via the radio transceiver module, and the second subscriber identity card camping on a second cell belonging to a second wireless network via the radio transceiver module, the improvement comprising:
a processor coupled to the first subscriber identity card, the second subscriber identity card and the radio transceiver module, transmitting a message through the second cell to the second wireless network via the radio transceiver module right after the first subscriber identity card has finished a wireless communication with a peer communication apparatus. - View Dependent Claims (15, 16, 17, 18, 19, 20)
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21. A method for handling mobile originated calls, comprising:
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receiving, by a processor, receiving an apparatus originated communication request with a destination address; comparing, by the processor, a signal strength of a first signal received from a first cell on which a first subscriber identity card camps with a signal strength of a second signal received from a second cell on which a second subscriber identity card camps; and establishing, by the processor, a wireless communication with a peer device having the destination address through one of the first and second cells with better signal strength. - View Dependent Claims (22, 23, 24, 25)
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26. A method for handling mobile terminated calls, comprising:
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receiving, by a processor, a apparatus terminated communication request to a first subscriber identity card with an origination address from a first cell; comparing, by the processor, a signal strength of a first signal received from a first cell on which the first subscriber identity card camps with a signal strength of a second signal received from the second cell on which a second subscriber identity card camps; and transmitting, by the processor, a redirection request through the first cell to the first wireless network via a radio transceiver module to instruct a first wireless network to redirect the apparatus terminated communication request to the second subscriber identity card when the signal strength of the second signal is better than the signal strength of the first signal. - View Dependent Claims (27, 28, 29, 30, 31)
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32. A method for handling calls, comprising:
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camping on, by a processor, a first cell for a first subscriber identity card; camping on, by the processor, a second cell for a second subscriber identity card; and transmitting, by the processor, a message through the second cell to the second wireless network via a radio transceiver module right after the first subscriber identity card has finished a wireless communication with a peer communication apparatus. - View Dependent Claims (33, 34, 35, 36, 37, 38)
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Specification