Huawei E5221 - Functional Modules of E5221

HUAWEI E5221 Mobile WiFi V100R001
Product Description
Issue 03 (2013-05-06)
Commercial in Confidence
Page 17 of 20
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
HSPA+/HSPA/UMTS/EDGE/GPRS/GSM baseband digital signals, including:
 Modulating/Demodulating HSPA+/HSPA/UMTS baseband signals
 Modulating/Demodulating EDGE/GPRS/GSM baseband signals
 Encoding/Decoding 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, SIM card and microSD card.
4. Protocol stack system: It processes protocols of
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.