The GTM378 is the second generation of PCI Express MiniCard module designed by Option to be compatible with mobile. operator infrastructure equipment capable of supporting HSDPA data rates of up to 7.2 Mbps. The GTM378 is the right solution for embedding HSDPA, 3G and EDGE connectivity technology into laptops and PDA devices.

The GTM378 includes Advanced Receiver Technology (ART) bringing the benefit of Receive Diversity and Receive Equalization. Both are essential for maximizing the benefit of HSDPA 7.2. Initially supplied with HSDPA 3.6, the GTM378 is field upgradeable when the network is configured for HSDPA 7.2.

Backward compatibility ensures HSDPA connections at lower data rates of 3.6 Mbps and 1.8 Mbps. The GTM378 has inherent support for 3G operation at 384 Kbps in conjunction with quad-band EDGE and GPRS. Even more use cases become possible with the GPS and voice capabilities of this module.

Features
Global connectivity with triple-band 3G and quad-band 2G
A-GPS / S-GPS Positioning
CS Voice support
Advanced Receiver Technology incorporating Receiver Diversity and Equalization
High-speed data with HSDPA and UMTS (up to 7.2 Mbps downlink and 384 Kbps uplink) and backward compatible with EDGE / GPRS / GSM data connectivity (up to 247 Kbps)
Transparent hand-over between UMTS and GSM / EDGE networks
Low power dissipation for easy embedding into devices
Benefits from large Option experience in PC datacards
Easy integration made possible thanks to:
Testing on infrastructures and networks worldwide
Flexible driver design providing both NDIS and modem modes for easy integration into dashboard applications
Future proofing through Flash Memory technology
Connectors for external antennas

Specifications
HSDPA / UMTS
Multi-bands variants (bands with Rx diversity are underlined)
 MO 0201: 850 / 1900 / 2100 ( Rx diversity) MHz
Power Class 3 (+24 dBm)
HSDPA modes: HSDPA 1.8: Categories 1-4, 11 and 12
                         HSDPA 3.6: Categories 5 and 6
                         HSDPA 7.2: Category 7 and 8 (SW upgrade)

Equalization
Rx diversity
UMTS: 384 Kbps operation in downlink, 384 Kbps in uplink
Support UL and DL Compressed Modes
Circuit-switched data: 64, 14.4 and 9.6 Kbps

EDGE
850 / 900 / 1800 / 1900 MHz
GSM Power Class 4 (2W) for 850 / 900 bands, GSM
Power Class 1 (1W) for 1800 / 1900 bands
EDGE class E2 (+27 dBm in 850 / 900 bands, +26 dBm in
1800 / 1900 bands)
GPRS / EDGE Multislot Class 12 (4 slots Rx, 4 slots Tx)
GPRS / EDGE Class B Type 1 MT
GPRS CS1-CS4; EDGE MCS1-MCS9
Circuit-switched data: 14.4 and 9.6 Kbps

Assisted / Stand-alone GPS
A-GPS and S-GPS modes, as described below:
MS-based, MO or MT
MS-assisted, MO or MT
Stand-alone

Voice features
Circuit-switched voice calls over GSM / WCDMA air interfaces, MO and MT
Controlled through AT commands
Bi-directional PCM interface for audio streams (8-bits u-Law A-Law, 16-bits linear)
Voice codecs: GSM / WCDMA AMR, FR, EFR, HR
Echo Cancellation, Noise Suppression, TTY
Tone detection / generation