[Tips] Improve 3G/Edge speeds!

 Posted the same in the Dream forum, but might be handy to know in this forum too :

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People... the mentioned settings will only work if your network supports them!
Most important is the fact that they NEED to be set to the value that your network is currently supporting if you want to enjoy optimal speeds!!

ro.ril.hsxpa : inidcates hsxpa support of target network :

Code:

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 :

Code:

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 :

Code:

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 :

Code:

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

Not speed related, but still nice to have :

ro.ril.enable.3g.prefix : adds the 3G prefix to the operator name.

ro.ril.enable.dtm : Only set this to 1 if your network allows simultaneous transfer of Circuit switched (CS) voice and Packet switched (PS) data over the same radio channel (ARFCN).

NOTICE: I do not respond to tech support questions through PM.

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ro.ril.hsxpa=2
ro.ril.hsdpa.category=14
ro.ril.hsupa.category=6
ro.ril.enable.dtm=1