User's Guide

LE920A4 HW User Guide General Product Description
Doc#: 1VV0301261 Overview
Rev. 4.7.1 Page 12 of 124 2019-11-21
2. General Product Description
Overview
The LE920A4 module is Titan’s platform for automotive telematics on-board units (OBU's)
for applications, such as automotive telematics and eCall, based on the following
technologies:
 4G cellular for voice and data communication
 GNSS (optional) - GPS, GLONASS, BeiDou, Galileo, QZSS, for positioning
service
 Embedded security
o ARM Trust Zone services (optional)
 Designed for automotive markets
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quality needs
In its most basic use case, the module can be applied as a wireless communication front-
end for telematics products, offering GNSS and mobile communication features to an
external host CPU through its rich interfaces.
The module can further support customer software applications and security features. The
module provides a software application development environment with sufficient system
resources for creating rich on-board applications. Thanks to a dedicated application
processor and embedded security resources, product developers and manufacturers can
create products that guarantee fraud prevention and tamper evidence without extra effort
for additional security precautions.
The module can be self-sufficient and serve as a fully integrated solution for applications,
such as location-based cellular telematics, navigation, road pricing and eCall. In such a
case, the customer would simply complement the module with a power supply, speaker
amplifier, microphone, antennas, and an HMI (if applicable).
The module is available in hardware variants as listed in Table 1: Applicability Table. The
designated RF band sets per each variant are detailed in Section 2.6, Frequency Bands.
Applications
The module can be used for telematics applications where tamper-resistance,
confidentiality, integrity, and authenticity of end-user information are required, for
example:
 Emergency call
 Telematics services
 Road pricing
 Pay-as-you-drive insurance
 Stolen vehicles tracking
 Internet connectivity
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In accordance with Titan’s Robustness Validation, using AEC-Q100-defined qualification tests