How to improve HSDPA

[deknoi55]

In Huawei product
I got value CQI =28-31
RTWP =-105
HS-PDSCH=14
BLER= 10%
Normally Operator want KPI maximum value =16 Mbps but now just got the value =12 Mbps. I think transmission have something problem So how to check transmission from M2000 . or how about the expert in finetopix think??


Thank you

[jan74]

In Huawei product
I got value CQI =28-31
RTWP =-105
HS-PDSCH=14
BLER= 10%
Normally Operator want KPI maximum value =16 Mbps but now just got the value =12 Mbps. I think transmission have something problem So how to check transmission from M2000 . or how about the expert in finetopix think??


Thank you

We spent a while wondering the same until we realised the laptop's default TCP settings were inappropriate. You need to ensure that the TCP Recive Window is set correctly. We used 256000. Previously, it was blank. That raised the Throughput from 13Mbps to 18Mbps.

[deknoi55]

So glad for comment sir . By the way this laptop ever used to Downlaod reach 18 Mbps in the past . thank for comment.

[jan74]

So glad for comment sir . By the way this laptop ever used to Downlaod reach 18 Mbps in the past . thank for comment.

Im not sure what you mean but we were testing 21Mbps feature and were only getting 12-13Mbps. Changing the TCP settings worked and brought us to 18Mbps. We used a free online tool called DrTCP to see what the settings were.

[tukangoptim]

In Huawei product
Normally Operator want KPI maximum value =16 Mbps but now just got the value =12 Mbps. I think transmission have something problem So how to check transmission from M2000 . or how about the expert in finetopix think??
Thank you

my friend, if i am RF guy, usually to check transmission, i prefer to use ms outlook than m2000.

[fateh_med]

dear;we have to check:HSDPA available powerCategory of UE (maximum number of codes supported by UE and whether to support 16QAM)Radio signals near UE( around -50dbm)ALSO we need to check the Bandwidth at Iub interfacecheck Maximum rate supported by RNC, NodeB, GGSN, and SGSN.Querying bandwidth at Iub interface at RNC side proceeds as below:– Query adjacent node corresponding to each cell by executing the command LST AAL2ADJNODE– Query the path of the NodeB by executing the command LST AAL2PATH.– Query the bandwidth by executing the command LST ATMTRF.– Query the residual bandwidth by executing the commands DSP AAL2ADJNODE and DSP AAL2PATH at RNC side.Querying the bandwidth at Iub interface at NodeB side proceeds as below:AAL2PATH is necessary at NodeB. The relevant commands include LST AAL2PATH and DSP AAL2PATH.

[deknoi55]

thanksss jan74 for idea .

[deknoi55]

@fateh_med (http://www.finetopix.com/member.php?51600-fateh_med) thanks for super command (that's cool)

[johnsonsem]

Just noticed that "The last value, [31] = number of CQIs with invalid values, is exempt from the resolution."


In Huawei product
I got value CQI =28-31
RTWP =-105
HS-PDSCH=14
BLER= 10%
Normally Operator want KPI maximum value =16 Mbps but now just got the value =12 Mbps. I think transmission have something problem So how to check transmission from M2000 . or how about the expert in finetopix think??


Thank you