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UMTS/HSPA Module Series

UC20 Hardware Design

UC20_Hardware_Design Confidential / Released 13 / 82

scheme).

Downlink coding schemes: CS 1-4 and MCS 1-9

Uplink coding schemes: CS 1-4 and MCS 1-9

CSD:

CSD transmission rates: 14.4kbps non-transparent

Support Unstructured Supplementary Services Data (USSD).

Internet Protocol Features

Support TCP/UDP/PPP/FTP/SMTP/HTTP/FILE/MMS/SSL protocols

Support the protocols PAP (Password Authentication Protocol) and

CHAP (Challenge Handshake Authentication Protocol) usually used

for PPP connections.

SMS

Text and PDU mode

Point to point MO and MT

SMS cell broadcast

SMS storage: ME by default

USIM Interface

Support USIM/SIM card: 1.8V, 3.0V

Audio Features

Support one digital audio interface: PCM interface

GSM: HR/FR/EFR/AMR/AMR-WB

WCDMA: AMR/AMR-WB

Echo cancellation and noise suppression

PCM Interface

Used for audio function with external codec.

Support 8-bit A-law, μ-law and 16-bit linear data formats.

Support long frame sync and short frame sync.

Support master and slave mode, but must be the master in long frame

sync.

UART Interface

Support two UART interfaces: main UART interface and debug UART

interface.

Main UART interface:

 Seven lines on main UART interface

 Support RTS and CTS hardware flow control

 Baud rate can reach up to 921600bps, 115200bps by default

 Used for AT command, data transmission or firmware upgrade

 Support multiplexing function

Debug UART interface:

 Two lines on debug UART interface: DBG_TXD and DBG_RXD

 Can be used for GNSS NMEA sentences output

USB Interface

Compliant with USB 2.0 specification (slave only), the data transfer

rate can reach up to 480Mbps.

Used for AT command communication, data transmission, GNSS

NMEA output, software debug and firmware upgrade.

USB Driver: Windows XP, Windows Vista, Windows 7, Windows 8,

Windows CE5.0/6.0/7.0, Linux 2.6/3.0, Android 2.3/4.0/4.2.

Rx-diversity

Support UMTS Rx-diversity

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