4.2 Functional Modules
1. Radio frequency module: It sends/receives radio signals and
modulates/demodulates the radio frequency (RF) signals and baseband signals.
2. Baseband signal processing: It processes
DC-HSPA+/HSPA+/HSPA/UMTS/EDGE/GPRS/GSM baseband digital signals,
including:
Modulating/Demodulating DC-HSPA+/HSPA+/HSPA/UMTS baseband
signals
Modulating/Demodulating EDGE/GPRS/GSM baseband signals
Encoding/Decoding DC-HSPA+/HSPA+/HSPA/UMTS channel
Encoding/Decoding EDGE/GPRS/GSM channel
3. Bottom layer driver: It drives peripherals, including USB device, Wi-Fi device,
indicator, button and SIM card.
4. Protocol stack system: It processes protocols of
DC-HSPA+/HSPA+/HSPA/UMTS/EDGE/GPRS/GSM and TCP/IP.
5. Application system: It provides management system, including SMS, PS
domain service, Wi-Fi configuration, network service, Web service and Web page.
The user can set management parameters by Web page.
6. User interface: It provides human-computer interaction, including indicator and
button.
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