We first design measurement experiments to discover the
timeout values of the critical inactivity timers employed in
3HK’s 3G network, as discussed in Section III-D. We enable
logging functions on an fully charged iPhone 4S and use the
Mobile Safari (the HTML5-compatible browser on iPhone) to
watch a YouTube video using CloudMoV services. The battery
consumption traces on the phone are profiled by “Instruments”,
a powerful tool of Xcode [32]. The playback rate of the video
on the phone is about 254 Kbps