We used a fully isolated and complete HSPA and
LTE test networks, which made it possible at the same
time to study the behavior of commercial smartphones and
to quantify the impact of different network configurations
on both the end device and the network. We quantify the
impact of different radio access network (RAN) configurations
on the achievable energy savings by considering different
inactivity timer values and discontinuous reception
mechanisms. In addition to the smartphone energy savings,
we studied also the impact of shaping streaming traffic into
burst on the RAN signaling load because globally many major
operators have suffered service quality deterioration and
even network outages because of signaling storms created by
smartphone applications