[EGPRS] Performance results for EGPRS test in Radisys lab

Minh-Quang Nguyen minh-quang.nguyen at nutaq.com
Fri Aug 12 20:25:15 UTC 2016


Hi,

I perform measurements of the latest implementation of EDGE in osmo-pcu and latest osmo-bts from master branch for LC15 platform. 

In DL, 2 MBytes of data was downloaded from our a server per measurement and repeat 10 times to get the average DL throughput.

In UL, 100 KBytes of data was uploaded to a local server per measurement and repeat 10 times to get the average UL throughput.

Coding scheme	DL (kbps) 	UL (kbps)
MCS9			184		30
MCS8			144		35.5
MCS7			110		21.5

The throughput is not similar to your measurement and I observed that the PCU prints a bunch messages about 
'Scheduling Ack/Nack, because MS is stalled'

Do you observe this issue during performance test? What causes the MS stalled?

Thanks,

Minh-Quang Nguyen

Concepteur logiciel  |  Software designer GSM/Network


T. 418 914-7484 x2296  |  1 855 914-7484  |  F. 418 914-9477
2150, Cyrille-Duquet, Québec (Québec)  G1N 2G3 CANADA


minh-quang.nguyen at nutaq.com
www.nutaq.com 

 QUEBEC MONTREAL NEW YORK

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-----Original Message-----
From: osmocom-net-gprs [mailto:osmocom-net-gprs-bounces at lists.osmocom.org] On Behalf Of Saurabh Sharan
Sent: Friday, July 22, 2016 8:30 AM
To: osmocom-net-gprs at lists.osmocom.org
Subject: Re: [EGPRS] Performance results for EGPRS test in Radisys lab

Hello Max,

> What about MCS UL? Do you have some statistics which one has been used

The uplink tests have been completed for all EGPRS coding scheme (MCS1 - 9) using the ping or TCP download. 
We have not conducted specific test for throughput estimation in uplink direction till now.

Regards
Saurabh


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