Integration Manual

Table Of Contents
LISA-U2 series - System Integration Manual
UBX-13001118 - R25 Features description Page 152 of 182
3.14 In-Band modem (eCall / ERA-GLONASS)
Not supported by supported by the "01", "x2", "63" and "68" product versions.
LISA-U2 module supports an In-Band modem solution for eCall and ERA-GLONASS emergency call
applications over cellular networks, implemented according to the 3GPP TS 26.267 [23], BS EN
16062:2011 [24] and ETSI TS 122 101 [25] specifications.
eCall (European) and ERA-GLONASS (Russian) are two initiatives to combine mobile communications
and satellite positioning to provide rapid assistance to motorists in the event of a collision,
implementing automated emergency response system, based respectively on the corresponding GPS
and GLONASS positioning systems.
When activated, the in-vehicle systems (IVS) automatically initiate an emergency call carrying both
voice and data (including location data) directly to the nearest Public Safety Answering Point (PSAP)
to determine whether rescue services should be dispatched to the known position.
Figure 69: eCall and ERA-GLONASS automated emergency response systems diagram flow
3.15 SIM Access Profile (SAP)
SIM access profile (SAP) feature allows LISA-U2 modules to access and use a remote (U)SIM card
instead of the local SIM card directly connected to the module (U)SIM interface.
LISA-U2 modules provide a dedicated USB SAP channel and dedicated multiplexer SAP channel over
UART and SPI for communication with the remote (U)SIM card.
The communication between LISA-U2 modules and the remote SIM is conformed to the client-server
paradigm: LISA-U2 module is the SAP client establishing a connection and performing data exchange
to an SAP server directly connected to the remote SIM that is used by the LISA-U2 module for
GSM/UMTS network operations. The SAP communication protocol is based on the SIM Access Profile
Interoperability Specification [21].
LISA-U2 modules do not support the SAP server role: the module acts only as an SAP client.
A typical application using the SAP feature is the scenario where a device such as an embedded car-
phone with an integrated LISA-U2 module uses a remote SIM included in an external user device (e.g.
a simple SIM card reader or a portable phone), which is brought into the car. The car-phone accesses
the GSM/UMTS network using the remote SIM in the external device.
LISA-U2 modules, acting as an SAP client, can be connected to an SAP server by a completely wired
connection, as shown in Figure 70.