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 LTE/DC-HSPA+/HSPA+/UMTS/
EDGE/GPRS/GSM baseband digital signals, including:
Modulating/Demodulating
LTE/DC-HSPA+/HSPA+/UMTS/EDGE/GPRS/GSM baseband signals
Encoding/Decoding LTE/DC-HSPA+/HSPA+/UMTS/EDGE/GPRS/GSM
channel
3. Bottom layer driver: It drives peripherals, including a USB device, Wi-Fi devices,
a screen, buttons, a SIM card and a microSD card.
4. Protocol stack system: It processes protocols of
LTE/DC-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 a screen and
buttons.
To Next Page
Loading...
