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Error Performance Monitoring (PM)Parameters

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Objective

Block

BIP Monitoring

Errored Block (EB)

Errored Second (ES)

Severely Errored Second (SES)

Background Block Error (BBE)

Unavailable Second (UAS)

Severely Errored Period (SEP)

Errored Second Ratio (ESR)

Severely Errored Second Ratio (SESR)

Background Block Error Ratio (BBER)

Severely Errored Period Intensity (SEPI)

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PM Parameters

Block: It is a part of te S!M fra"e over #ic BIP bits are calculated$

B% Byte &&&$ S!M fra"e

B' Byte &&&$ S!M fra"e RS*

B+ Byte &&&$ ,-./

,0 Byte &&& 1 ,-

BIP Monitoring: It uses ,ertical even parity detection tecni2ue to "onitor te

associated section3pat$

B% byte . . . RS

B' byte . . . MS

B+ byte . . . *P

,0 byte . . . 1P

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BIP calculation: B% byte calculation over S!M fra"e$

PM Parameters

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Errored Second (ES)4A one second period #it one or "ore Errored Blocks arepresent3 te second is a 5efect second$

1!s 1 block

1s "### blocks

1s ### blocks (Onl$ %or &!)

Even if one fra"e in one second is in error ES starts incre"enting$

PM Parameters'''

Because ,0 byte is calculated for every 0667s$

Errored Block (EB)4 A Block in #ic one or "ore BIP bits are in error$

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Severel$ Errored Second (SES)4

A one second period #ic contains 89+6: Errored blocks 3 5efect second$

'/66 (;66 for ,0) or "ore blocks in error in % sec SES starts incre"enting$

PM Parameters '''

1!s 1 block

1s "### blocks

# o% "### blocks *## blocks

# o% ### blocks +## blocks (Onl$ %or &!)

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PM Parameters

Background Block Error (BBE):

If perfor"ance

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0navailable Second (0S)4

UAS incre"ents by %6 at te onset of 1#t2consecutive SES$

Period of Unavailable ti"e begins #ere 1# SES eventstarted$

UAS decre"ents by %6 at te onset of 1#t2consecutive non3SES$

Period of Available ti"e begins #ere 1# non3SES eventstarted$

PM Parameters '''

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Seconds

%

'

+

/

0

;

>

?

%6

@

%'

%%

, EB in 1 sec'

1

###

!##

!##

###

!##

###

###

*##

###

###

#-"

EB.

1

##1

!!#1

-##1

1##1

1*!#1

#!#1

1/!#1

!-#1

!#1

1---

"---

ES

1

*

!

+

"

/

1#

-

1

11

SES

#

1

*

!

/

+

-

"

11

1#

0S

#

#

#

#

#

#

#

#

#

#

#

#1 # 1#

1 # 11

Period

ofUnavailableTime

PM Parameters

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PM Parameters '''

4ime(sec) # 1 * ! + / " - 1# 11 1 1 1* 1! 1+ 1/ 1" 1- # 1 * ! + / " - # 1

ES count 1 * ! + / " - 1# 11 1 1

SES count 1 1 1 * ! + / " - 1# 11

0S count 1# 11 1 1 1* 1! 1+ 1/ 1" 1- # 1 * ! + / "

Interval +6: blocks in error (ES)Interval 89+6: blocks in error (SES)

Interval no blocks in error

* * * * * * * ! !

1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1

Period o% 0navailable time

ES SES UAS

SES -ount persists -ount persists Incre"ents

ES Incre"ents Persists Incre"ents

Error Cree Persists Persists Incre"ents

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PM Parameters'''

4ime(sec) # 1 * ! + / " - 1# 11 1 1 1* 1! 1+ 1/ 1" 1- # 1 * ! + / " - # 1

Interval +6: blocks in error (ES)

Interval 89+6: blocks in error (SES)

ES count 1 * ! + / " - 1# 11 1 1

SES count 1 1 1 * ! + / " - 1# 11

0S count 1# 11 1 1 1* 1! 1+ 1/ 1" 1- # 1 * ! + /

Interval no blocks in error

* * * * * * * ! +

1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1

1/ 1/

Period o% 0navailable time Period o% vailable time

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PM Parameters'''

4ime interval(sec) # 1 * ! + / " - 1# 11 1 1

SES count 1 * ! + / " - -

Interval +6: Errored blocks (ES)

Interval 89+6: Errored blocks (SES)

Severel$ Errored Period (SEP)4

A severely Errored period begins at te onset of 0 to @ consecutive SES$

events$

Dote4Cor !eas Dodes< after ? consecutive SES< SEP is set$

SEP

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Errored Second 5atio (ES5)4!e ratio of ES to total seconds in available ti"e during afiFed "easure"ent interval$

Say interval is of %+ sec ten666)

Severel$ Errored Period Intensit$(SEPI)4!e nu"ber of SEP events in te available

ti"e< divided by total available ti"e in seconds$

SEPI4(%3 %+ sec)

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6ear End and 7ar End

B .

a 3b

b 3 a

b 3 c

c 3 b

6ES 8 (69S) (6EB.)

6SES 8 (69S) (6EB.)

6BBE 8 ;(6SES) (6EB.)

7ES 8 ;(69S) (7EB.) (79S)

7SES 8 ;(69S) (7EB.) (79S)

7BBE 8 ;(6SES) (7EB.)

6E

7E

7E

6E

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Thank you