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the device remains reachable for a
mobile terminated transaction moving
from connected to idle mode. The
device starts the active timer when it
transactions from connected to idle
mode. When the active timer expires,
the device moves to power-saving
mode. While the device remains in
power-saving mode, it is not reachable
as it does not check for paging, but it
is still registered with the network. The
device remains in PSM until a mobile-
originated transaction occurs.
The PSM will significantly increase
and extend the device’s battery life,
increasing the DRX cycle (Discontinuous
Reception) with different transaction
cycles for an LTE-M device.
Using Release 12 PSM with 10 minutes’
DRX cycle and a weekly transaction
cycle may extend a typical 1500mAH
battery’s life to more than 10 years.
Main Characteristics of PSM:
Enhanced power-saving mode (PSM)
Efficiently turning OFF-ON modem,
optimized for device-originated or
scheduled applications
Extended Discontinuous Reception
(DRX)
Longer sleep cycles optimized for
delay-tolerant,
device-terminated
applications
Connectionless Random Access
Channel (RACH)
Data transmissions via a common
channel for more efficient transition
between states
Less frequent Tracking Area Updates
(TAUs) and measurements
Configurable for low-to zero-mobility
M2M applications
Conclusion
It is widely accepted that LTE will be
used for nearly everything that requires
a wireless connection, including M2M
and IoT applications where it was
once deemed too expensive and
complex. LTE means more than high
throughput; it offers better spectral
efficiency, longevity, scalability and
economic benefits for device makers
and operators. The migration to LTE
has already started for M2M and IoT
businesses, and all connected devices,
from the high-tier smart phone to the
lowest utility meter or wearable device,
will be LTE.
LTE Category M will be on 3GPP
implementation till the end of 2017,
with commercial deployment in 2019.
In the current scheme of deployment
of 3GPP Rel-12 and Rel-13 LTE for M2M
standards, looking at the long period
of integration in M2M/IoT products/
systems and regional carrier plans,
it will take some time to transition
and switch on toward full Machine
Type Communications LTE-M support,
while the LTE Category 1 will perfectly
fit M2M needs in terms of complexity,
price and functionality.
Quectel Is Developing LTE-Cat1
Module Tailored for M2M/IoT
Applications
Quectel Wireless Solutions, a leading
global supplier of GSM/GPRS, UMTS/
HSPA/LTE and GNSS modules,
solutions and services, will launch the
LTE-Cat 1 module optimized specially
for M2M and IoT applications in Q2,
2016. Samples of this module will be
available in Q1, 2016.
Key Benefit of Quectel LTE-Cat1
Module:
•
Low-cost,
low-power
LTE
connectivity optimized for broadband
IoT applications
• Worldwide LTE and UMTS/HSPA+
and GSM/GPRS/EDGE coverage
• MIMO technology meets demands
for data rate and link reliability in
modem wireless communication
systems
• GNSS receiver available for
applications requiring fast and
accurate fixes in any environment
• Embedded power management unit
(PMU) featuring ultra-low deep sleep
current consumption
For more information visit our
web site
Figure 4
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