Thông tin về mạng 3g hspa:
there is a recent thread at xda about editing config settings inside build.prop or build.sapphire.prop. Just wondering if anyone knew the settings for 3?
http://forum.xda-developers.com/showpost.php?p=5123531&postcount=46
ro.ril.hsxpa : inidcates hsxpa support of target network :
............... ro.ril.hsxpa=0 – UMTS r99
..................ro.ril.hsxpa=1 – HSDPA
..................ro.ril.hsxpa=2 – HSDPA/HSUPA
ro.ril.gprsclass : inidcates GPRS class of target network :
....Class 2 : 3 slots : 8 – 12 kbps upload / 16 – 24 kbps download
....Class 4 : 4 slots : 8 – 12 kbps upload / 24 – 36 kbps download
....Class 6 : 4 slots : 24 – 36 kbps upload / 24 – 36 kbps download
....Class 8 : 5 slots : 8 – 12 kbps upload / 32 – 40 kbps download
....Class 10 : 5 slots : 16 – 24 kbps upload / 32 – 48 kbps download
....Class 12 : 5 slots : 32 – 48 kbps upload / 32 – 48 kbps download
ro.ril.hsdpa.category :
Cat 1 = 1.2 Mbit/s
Cat 2 = 1.2 Mbit/s
Cat 3 = 1.8 Mbit/s
Cat 4 = 1.8 Mbit/s
Cat 5 = 3.6 Mbit/s
Cat 6 = 3.6 Mbit/s
Cat 7 = 7.2 Mbit/s
Cat 8 = 7.2 Mbit/s
Cat 9 = 10.1 Mbit/s
Cat 10 = 14.0 Mbit/s
Cat 11 = 0.9 Mbit/s
Cat 12 = 1.8 Mbit/s
Cat 13 = 17.6 Mbit/s
Cat 14 = 21.1 Mbit/s
Cat 15 = 23.4 Mbit/s
Cat 16 = 27.9 Mbit/s
Cat 19 = 35.3 Mbit/s
Cat 20 = 42.2 Mbit/s
Cat 21 = 23.4 Mbit/s
Cat 22 = 27.9 Mbit/s
Cat 23 = 35.3 Mbit/s
Cat 24 = 42.2 Mbit/s
Cat 25 = 46.8 Mbit/s
Cat 26 = 55.9 Mbit/s
Cat 27 = 70.6 Mbit/s
Cat 28 = 84.4 Mbit/s
ro.ril.hsupa.category :
..........Cat 1 = 0.73 Mbit/s
..........Cat 2 = 1.46 Mbit/s
..........Cat 3 = 1.46 Mbit/s
..........Cat 4 = 2.93 Mbit/s
..........Cat 5 = 2.00 Mbit/s
..........Cat 6 = 5.76 Mbit/s
..........Cat 7 = 11.5 Mbit/s
eg.
ro.ril.hep=1
ro.ril.hsxpa=2
ro.ril.enable.dtm=1
ro.ril.gprsclass=12
ro.ril.hsdpa.category=8
ro.ril.enable.a53=1
ro.ril.enable.3g.prefix=1
ro.ril.htcmaskw1.bitmask = 4294967295
ro.ril.htcmaskw1 = 14449
ro.ril.hsupa.category = 5