kpi degradation due to pdcchcfimode.pptx
TRANSCRIPT
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7/25/2019 KPI degradation due to PdcchCfiMode.pptx
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Classifcatie1
PdcchCfMode
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Classifcatie2
Impact HO ailures
Ater setting the PdcchCfMode todynamic:- CFI mode 1 is used on most o the
cells- ! e"ecution ails intra#node- $% re#esta&lishes on target sector
lo'er &and ($% &eha)iour*+- ,eha)iour seen in traces and
counters- I AM! eature ena&led then more
counters a)aila&le
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Classifcatie3
Impact ERAB drops
--C re#esta&lishment 'orks O!"ithere is a neigh&our relation &et'eenthe source cells and target cell
A.- defnes the IF neigh&our:- %-A, dro/s drastically
reduce- -e#esta&lishment success
rate im/ro)es
.,: 0%1233 integrationscri/ts defne !.04 co#sector IF neigh&ours
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Classifcatie#
Impact cause
5hen CFI mode 1 is used:
-P6CC is only ma//ed on sym&ol 37 'hich is used &y C-8
- 6ue to shited PCI /lanning P6CC is interered &y C-8 on neigh&ourcells
- 6ue to synchroni9ation the eect is seen mostly on intra node !5hen CFI mode ; or is used:# 8tatistically /ro&lem reduces due to allocation o P6CC on sym&ols 1
or ;
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Classifcatie$
Impro%i&' the (PIs1= Manually declare 0%1233#0%233 intra site neigh&ours
Add inter#sector in the &aseline scri/ts
;= C-8 de#&oosting .aturally hel/ed &y reducing the intererence
= et rid o CFI mode 1
0ess /ro&a&ility o P6CC &eing interered
?= -educing imeoriggerA 6eault %@@@ ?3ms7 P. setting ;3ms
B= P6CC Po'er ,oost eature
= .on#shited PCI /lanning
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Classifcatie)
3@32PdcchCfMode B#>36ue to load7 CFImode is still 1
PdcchCfMode 3#>;
PdcchCfMode ;#>1
;?@32 # timeoriggerA ;3ms#>133msPdcchCfMode D ?
3;@3E Pdcch Po'er ,oostGd,
13@3E .on shited PCI/lanning
*I+E,$,3 - tests
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Classifcatie. H
PdcchCfMode 3#>;
13@3E .on shited PCI/lanning
*I+E,$,3 AMO cou&ters
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Classifcatie/
01?, GPdcchCfMode 3#>B
PdcchCfMode B#>3
C-8 de#&oosting
;?@32 # timeoriggerA ;3ms#>133msPdcchCfMode D B
3;@3E PdcchPo'er,oostGd,
*I+E$/)) +ests
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Classifcatie0
CCE allocatio& cou&ters
E