Patent ID: 8744525

Claim:
A system for handling packet-switched data transmission, accompanying with a first radio frequency (RF) module, a second RF module, a first socket, into which a first subscriber identity card can be inserted, wherein the first subscriber identity card, when being inserted, camps on a cell via the first RF module, and a second socket, into which a second subscriber identity card can be inserted, wherein the second subscriber identity card, when being inserted, camps on the same cell or a different cell via the second RF module, comprising: processor logic for clustering a plurality of requests each encapsulated in one or more uplink Internet Protocol (IP) packets into a first group and a second group; processor logic for setting a first IP address corresponding to the first subscriber identity card as a source address of each IP packet of the first group; processor logic for setting a second IP address corresponding to the second subscriber identity card as a source address of each IP packet of the second group; and processor logic for transmitting the uplink IP packets to an adaptor responsible for transforming IP packets into a plurality of blocks and directing the first RF module and the second RF module to transmit the transformed blocks.