7/25/2019 KPI degradation due to PdcchCfiMode.pptx

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Classifcatie1

PdcchCfMode

7/25/2019 KPI degradation due to PdcchCfiMode.pptx

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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

7/25/2019 KPI degradation due to PdcchCfiMode.pptx

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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

7/25/2019 KPI degradation due to PdcchCfiMode.pptx

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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 ;

7/25/2019 KPI degradation due to PdcchCfiMode.pptx

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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

7/25/2019 KPI degradation due to PdcchCfiMode.pptx

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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

7/25/2019 KPI degradation due to PdcchCfiMode.pptx

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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

7/25/2019 KPI degradation due to PdcchCfiMode.pptx

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Classifcatie0

CCE allocatio& cou&ters

E