Ch.04 Performance Management

8/16/2019 Ch.04 Performance Management

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Performance Management

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Proprietary and Confidential

Radio Normal Propagation Conditions

Receiver

Threshold

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Radio Transmission Rain Attenuation

Nominalthreshold

Receiver

threshold

Applies to high

frequencies

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Radio Transmission Mutli-Path Reflections

Nominal

threshold

Receiver

threshold

Applies to all

frequencies

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RST MSTMSTMST RST RST RSTRST

RS RSRS RS

MS

RSRSRS

MS

Path layer

Higher order path

C-! "!# M$%s&

C-# "'#( M$%s&

Mapped ATM % )P

Section % Path layers in S*H Net+or,s

o+er order path

C-'. ".M$%s&

Mapped ATM % )P

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/( A. A A A' A' A' A. A. A

0' 1' 2' N N

*' *. *!

H. H. H. H! H! H!H'

0. 0. 0. 3' 3.

*# *4 *5

*6

*'(

S' 7' 7' 7. 7. M' 1. N

*8

*'.

*9

*''

N

STM-'RS:H

P:)NT1R

STM-'

MS:H

H'

A' A'

H'

A'MS

.M$%s

Media Specif ic$ytes

. M$%s asynchronous

;

MS .

S)

S) = Stuffing for .M$%s >ayside

MS '?. = Radio Protection S+itching

control

MS ! = R2-)d

Remote reset

ATPC1%M for $ytes@ 1' 2' 1.

N

S:H - Section :verhead

0' 0.= Parity $ytes; 1rror calculation; 0)P

M'= Remote 1rror )dentifier "MS-R1)&

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7/17Proprietary and Confidential

Performance= *efinitions and calculation

0loc,= A $loc, is defined as a group of successive $its that can $e allocated to the path

under test; 1ach $it $elong to a single $loc,; Monitoring ta,es advantage of theerror monitoring equipment $uilt into todayBs transmission systems such as CRC

"Cycling Redundancy Chec,& and $it parity techniques; 1rrors must $e detected

+ith at least 8( pro$a$ility +hich is met +ith CRC-# and 0)P-9 "0it )nterleaved

Parity&; )n S*H one $loc, is defined to $e one STM-' frame "'8 4'. $its&; )n P*H

other definitions apply; Refer to )TD-T E;9.9 for more info;

Principle of radio performance calculations

NE

1volution= 0'%0.%M' R1) RA*):1volution= 0'%0.%M' R1) )N1

Algorithm for

calculating E;9.5

performance for

'4 min; ' day and

' month period using

0' 0. and M' $ytes

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8/17Proprietary and Confidential

Performance parameters definitions

F 1rrored 0loc, 10=F A $loc, +hich one or more $its in error;

F 1rrored Second 1SF A one-second period +ith one or more errored $loc,s or at least one defect "path alarm&;

F Severely 1rrored Second S1SF A one-second period +hich contains ≥ !( errored $loc,s or at least one defect "path alarm&;

F 0ac,ground 0loc, 1rror 001F An errored $loc, not occurring as part of an S1S

F 1rrored second Ratio "1SR&F The ratio of 1S to a total seconds in availa$le time during a fiGed measurement interval;

F Severely 1rrored Second Ratio "S1SR&

F The ratio of S1S to total seconds in availa$le time during a fiGed measurement interval;

F 0ac,ground 0loc, 1rror Ratio "001R&F The ratio of 0ac,ground 0loc, 1rrors "001& to total $loc,s in availa$le time during a fiGedF measurement interval;

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Availa$ility

•The Performance Parameters are valid only +hen the system is in the Availa$ility state;

• Start of availa$ility= At start of time interval consisting of at least ten seconds that are

not severely errored;

• 1nd of availa$ility= At start of time interval containing at least ten consecutive S1S;

1Gample

'( sec; 9 sec; '( sec;

Dnavaila$ility detected Availa$ility detected

Dnavaila$le period Availa$le period

Time

Severely 1rrored Second "S1S&

1rrored Second "Non S1S&

1rror free Second

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•1na$le Performancecollection from element

menu in ED)

• :pen Historical Performance data

from element menu in ED)

Performance Measurements

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ie+ Performance Measurement Results

Time series

graph

F Ta$ular form

*istri$ution graph

Configura$le graph properties

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1rror counters

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Performance Reports

The reporting functionality ena$les a quic,

overvie+ as +ell as detailed analysis of theperformance of the

managed net+or,;

T+o graphical charts are displayed

Measurement types over time "G-

aGis= time y-aGis= measurement

value&

Measurement types over sourceNetwork Element "G-aGis= Net+or,

1lements y-aGis= measurement

value&

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Performance Reports; 1Gamples

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*etailed PM report

All collected PM data from all Net+or, 1lements matching the

filter is displayed in a ta$ular form

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Net+or, Time Synchroniation

• 1na$ling

synchroniation

from system

preferences

• Selecting N1s to $e

synchronied

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Thank You

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Ch.04 Performance Management

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