Wwan to ethernet converter and communication system thereof
AssigneeMStar Semiconductor, Inc.
InventorCheng-Yen Li
Life of this patent
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Abstract
A wireless wide area network (WWAN) to Ethernet converter comprises a subscriber identity module (SIM) interface, for accessing data stored in a SIM card; a radio frequency (RF) circuit, for receiving in the WWAM an RF signal associated with the data stored in the SIM card and for converting between the RF signal and a baseband signal; a digital signal processor (DSP), coupled to the RF circuit, for processing the baseband signal; and an Ethernet control device, coupled to the DSP, for converting between the processed baseband signal and an Ethernet signal.
Claims20
A wireless wide area network (WWAN) to Ethernet converter, comprising:
- a subscriber identity module (SIM) interface, for accessing data stored in a SIM card;
- a radio frequency (RF) circuit, for receiving within the WWAN an RF signal associated with the data stored in the SIM card, and converting between the RF signal and a baseband signal;
- a digital signal processor (DSP), for processing the baseband signal;
- and
- an Ethernet control device, for converting between the processed baseband signal and an Ethernet signal.
A wireless wide area network (WWAN) to Ethernet converting method, comprising:
- receiving a radio frequency (RF) signal from a first device of a WWAN, wherein the RF signal comprises a message associated with a second device of the WWAN;
- according to the message, selectively performing one of following operations:
- connecting the first device and the second device via a converter to form a WWAN communication link;
- and
- connecting the first device and the second device via an Ethernet to form an Ethernet communication link.
The converting method as claimed in 10, wherein the step of connecting the first device and the second device via the converter to form the WWAN communication link and the step of directly connecting the first device and the second device to form the WWAN communication link are selectively performed when the first device and the second device are from a same service provider, and the step of connecting the first device and the second device via the Ethernet to form the Ethernet communication link is performed when the first device and the second device are from different service providers.
A data transmission system between a wireless side area network (WWAN) and an Ethernet, comprising:
- a first communication device, operative within the WWAN, comprising a first subscriber identity module (SIM) interface for accessing data stored in a first SIM card, for generating a first radio frequency (RF) signal, which is associated with the data stored in the first SIM card and comprises predetermined data;
- and
- a first signal converter, comprising a second SIM interface for accessing data stored in a second SIM card, for receiving and converting the first RF signal to an Ethernet signal to transmit the predetermined data via the Ethernet;
- wherein, the first RF signal is associated with the data stored in the second SIM card.
Dependencies are inferred from the claim text.