When your phone is connected to a mobile network, you will see an icon on its title bar (a.k.a. annunciator panel) indicating the type of mobile network it is connected to.
Have you been wondering what type of mobile network does that icon indicate, and what is its maximum upload and download speed? Here is the answer.
Icon Network Max Download Max Upload
----- --------------- ---------------- -----------
G GPRS (2G) 14.4 kbps 12 kbps
E EDGE (2.5G) 177.6 kbps 40 kbps
3G WCDMA / UMTS 384 kbps 384 kbps
H HSDPA (old) 7.6 Mbps 384 kbps
H HSUPA (old) 7.6 Mbps 2 Mbps
H HSDPA 14.4 Mbps 384 kbps
H HSUPA 14.4 Mbps 5.7 Mbps
4G LTE 4G LTE 300 Mbps 75 Mbps
Therefore, you will experience a slow network speed when the icon is either G, E or 3G; and you will experience a smooth network speed when the icon is H or 4G.
Note that most of the phones released earlier than 2012 are not supporting 4G Internet connection yet, and most handphone does not support HSUPA. HSUPA is more commonly used for home/office Internet broadband connected with wireless router device.
Both the phone and also the mobile operator's network infrastructure must support the network type in order for such Internet connection to be established for the phone.
如果台積電是台積電 2
1 hour ago
1 comments:
Suka apps
Celcom broadband
Post a Comment