SARA-G3 and SARA-U2 series - System Integration Manual
UBX-13000995 - R26
System description
Page 94 of 217
1.13.20
Smart radio Coverage Manager
Not supported by SARA-G3 series modules and SARA-U2 "00","03","53","63","73" product versions.
Smart radio coverage manager is a feature that aims to reduce the power consumption in those cellular
scenarios where the radio coverage or the network conditions would cause an inefficient usage of power supply.
If the feature is enabled, when the device cannot get a reliable network coverage or is not reachable for CS
services for a user defined time interval, the cellular functionality is automatically switched off and, after a user
defined delay, re-enabled to react to possible changes in radio coverage conditions.
For the detailed description, see the
u-blox AT Commands Manual
[3], +UDCONF=57 AT command.
1.13.21
In-Band modem (eCall / ERA-GLONASS)
Not supported by SARA-G300 / SARA-G310 / SARA-U260 / SARA-U280 modules.
SARA-G340, SARA-G350 and SARA-U2 modules support an In-Band modem solution for the European eCall
and the Russian ERA-GLONASS emergency call applications over cellular networks, implemented according to
3GPP TS 26.267
BS EN 16062:2011
[32] and
ETSI TS 122 101
[33] specifications.
eCall (European) and ERA-GLONASS (Russian) are initiatives to combine mobile communications and satellite
positioning to provide rapid assistance to motorists in the event of a collision. The eCall automated emergency
response system is based on GPS, and the ERA-GLONASS is based on the GLONASS positioning system.
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 37: eCall and ERA-GLONASS automated emergency response systems diagram flow
For more details regarding the In-Band modem solution for the European eCall and the Russian ERA-GLONASS
emergency call applications see the
u-blox eCall / ERA-GLONASS Application Note
