Huawei E182E Product Manual page 13

Baseband Signal Processing
It processes HSPA+/UMTS/EDGE/GPRS/GSM baseband digital signals, including:
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Bottom Layer Driver
It drives peripherals, including USB, LED, Micro-SD and SIM/USIM.
Platform Service Subsystem
It initializes programs, diagnoses the running of the system, downloads data and
serves as a watchdog.
Protocol Stack System
It processes protocols of HSPA+/UMTS/EDGE/GPRS/GSM.
Application System
It sends laptop commands to the bottom layer protocol for processing and returns the
value to the laptop.
Existing applications include the following:
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User Interface
It provides interfaces to connect peripherals. Interfaces are for LED Micro-SD and
SIM/USIM.
Application Management
Through the application window, you can set the parameters of the E1820 and
operate the E1820.
Issue 01 (2009-02-12)
Modulating/Demodulating HSPA+/UMTS baseband signals
Modulating/Demodulating EDGE/GPRS/GSM baseband signals
Encoding/Decoding HSPA+/UMTS channel
Encoding/Decoding EDGE/GPRS/GSM channel
Call management
Message management
CS/PS domain service management
Commercial in Confidence
HUAWEI E1820 HSPA+ USB Slider（W2100+GSM）
V100R001
Product Description
Page 13 of 19