Project

General

Profile

Feature #2893

automatic simulator for large LU load

Added by laforge 4 months ago. Updated 4 months ago.

Status:
New
Priority:
High
Assignee:
sysmocom
Category:
-
Target version:
-
Start date:
01/27/2018
Due date:
% Done:

0%

Spec Reference:

Description

Every so often we see systems suffering a lot from large LU load.

There are many tunables like each tx delay/integer, access control class ramping, ms-acces-lv-min ramping, doewnlink poweer ramping, im ass reejct timer, etc

In order to be able to test different configurations and possible patches, we need a reproducible test scenario for benchmarking our performance.

Ideally this shoiuld be possible with osmocombb and virtphy. For just performing a LU, we don't even need scripting. However, we need
  • starting large number of "mobile"
  • realistic timing for network scan / cell search (virtphy is too fast)
  • implementation of downlink attenuation
  • detection of RACH collisions in bts-virtual

Related issues

Related to OsmoBSC - Feature #2722: document RACH tuning parameters more thoroughly, give explanations New 12/08/2017
Related to OsmoBSC - Feature #2591: ramp up cell slowly based on access control class to avoid severe RACH/SDCCH overload Resolved 10/23/2017

History

#1 Updated by laforge 4 months ago

  • Related to Feature #2722: document RACH tuning parameters more thoroughly, give explanations added

#2 Updated by laforge 4 months ago

  • Related to Feature #2591: ramp up cell slowly based on access control class to avoid severe RACH/SDCCH overload added

#3 Updated by laforge 4 months ago

  • Priority changed from Normal to High

#4 Updated by laforge 4 months ago

  • Assignee changed from laforge to sysmocom

Also available in: Atom PDF