System KPI Reference

ZXMW NR8250Digital Microwave Transmmission System

KPI Reference

Version: V1.00

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Revision History

Revision No. Revision Date Revision Reason

R1.0 2011–05–30 First edition

Serial Number: SJ-20110422094143-001

Publishing Date: 2011–05–30 (R1.0)

ContentsAbout This Manual ......................................................................................... I

Chapter 1 Radio Link KPIs......................................................................... 1-11.1 EFS................................................................................................................... 1-1

1.2 EB..................................................................................................................... 1-1

1.3 ES..................................................................................................................... 1-1

1.4 SES .................................................................................................................. 1-2

1.5 BBE .................................................................................................................. 1-2

1.6 UAS .................................................................................................................. 1-2

Chapter 2 Ethernet Port KPIs .................................................................... 2-12.1 Octets Received................................................................................................. 2-1

2.2 Packets received................................................................................................ 2-1

2.3 Broadcast packets received ................................................................................ 2-2

2.4 Multicast packets received .................................................................................. 2-2

2.5 FCS packets received......................................................................................... 2-2

2.6 Undersize packets received ................................................................................ 2-3

2.7 Oversize packets received .................................................................................. 2-3

2.8 Fragments packets received ............................................................................... 2-3

2.9 Jabber packets received ..................................................................................... 2-4

2.10 Packets = 64 octets received............................................................................. 2-4

2.11 Packets 65 ~ 127 octets received ...................................................................... 2-4

2.12 Packets 128 ~ 255 octets received .................................................................... 2-5

2.13 Packets 256 ~ 511 octets received .................................................................... 2-5

2.14 Packets 512 ~ 1023 octets received .................................................................. 2-5

2.15 Packets 1024 ~ MAX octets received................................................................. 2-6

Chapter 3 ODU KPIs................................................................................... 3-13.1 Min TSL............................................................................................................. 3-1

3.2 Max TSL............................................................................................................ 3-1

3.3 Mean of TSL ...................................................................................................... 3-2

3.4 Min RSL ............................................................................................................ 3-2

3.5 Max RSL ........................................................................................................... 3-2

3.6 % High Threshold............................................................................................... 3-2

3.7 % Low Threshold ............................................................................................... 3-3

3.8 Mean of RSL...................................................................................................... 3-3

I

3.9 99.9% RSL ........................................................................................................ 3-3

3.10 0.1% RSL ........................................................................................................ 3-4

Chapter 4 TDM Port KPIs ........................................................................... 4-14.1 SDH Optical Port Statistics ................................................................................. 4-1

4.1.1 Minimum receiving optical power............................................................... 4-1

4.1.2 Maximum receiving optical power.............................................................. 4-1

4.1.3 Minimum transmitting optical power ........................................................... 4-2

4.1.4 Maximum transmitting optical power .......................................................... 4-2

4.2 SDH Regenerator Section Statistics .................................................................... 4-2

4.2.1 RS-UAS................................................................................................... 4-2

4.2.2 RS-ES..................................................................................................... 4-3

4.2.3 RS-SES................................................................................................... 4-3

4.2.4 RS-BBE................................................................................................... 4-3

4.3 SDH Multiplex Section Statistics.......................................................................... 4-4

4.3.1 MS-UAS .................................................................................................. 4-4

4.3.2 MS-ES..................................................................................................... 4-4

4.3.3 MS-SES .................................................................................................. 4-4

4.3.4 MS-BBE .................................................................................................. 4-5

Chapter 5 WLETH Port KPIs ...................................................................... 5-15.1 Los.................................................................................................................... 5-1

5.2 Utilization........................................................................................................... 5-1

Glossary .......................................................................................................... I

II

About This ManualPurpose

Thismanual describes the description, definition, unit, statistics object, and statistics periodof KPIs of the ZXMW NR8250 digital microwave system.

Intended Audience

l System Engineerl Testing Engineerl Planning Engineer

What Is in This Manual

This manual contains the following chapters.

Section Summary

Chapter 1, Radio Link KPIs Describes the description, definition, unit, statistics object,

and statistics period of the KPIs of radio link.

Chapter 2, Ethernet Port KPIs Describes the description, definition, unit, statistics object,

and statistics period of the KPIs of Ethernet port.

Chapter 3, ODU KPIs Describes the description, definition, unit, statistics object,

and statistics period of the KPIs related to ODU.

Chapter 4, TDM Port KPIs Describes the description, definition, unit, statistics object,

and statistics period of the KPIs of TDM port.

Chapter 5, WLETH Port KPIs Describes the description, definition, unit, statistics object,

and statistics period of the KPIs of WLETH port.

I

II

Chapter 1Radio Link KPIsTable of Contents

EFS............................................................................................................................1-1EB..............................................................................................................................1-1ES..............................................................................................................................1-1SES ...........................................................................................................................1-2BBE ...........................................................................................................................1-2UAS ...........................................................................................................................1-2

1.1 EFSName Errored Free Second

Description Time during which there is no error bit within 15 minutes or 24 hours

Definition This KPI counts the number of seconds during which there is no error blocks

within 15 minutes or 24 hours.

Unit Second

Statistics object WL object on RMU board

Statistics period Real time, 15 minutes or 24 hours

1.2 EBName Errored Block

Description Number of error blocks that contain one or multiple error bits

Definition This KPI counts the number of error blocks within 15 minutes or 24 hours.

Unit Block



1.3 ESName Errored Second

1-1

SJ-20110422094143-001|2011–05–30 (R1.0) ZTE Proprietary and Confidential

ZXMW NR8250 KPI Reference

Description Time during which one or multiple error bits occur

Definition This KPI counts the number of seconds during which one or multiple error bits

occur within 15 minutes or 24 hours.

Unit Second



1.4 SESName Severely Errored Second

Description Time during which the percent of error blocks of the total blocks is at least

30% in a statistics period

Definition This KPI counts the number of seconds during which the proportion between

the number of error blocks and the total number of blocks is at least 30% in a

statistics period (15 minutes or 24 hours).

Unit Second



1.5 BBEName Background Block Errored

Description Number of error blocks not contained in SES

Definition This counter counts the number of error blocks not contained in SES.

Unit Block



1.6 UASName Unavailable Second

Description The UAS status is detected after 10 consecutive SESs occur. The starting time

of UAS is counted from the first second after 10 consecutive SESs occur. When

10 consecutive non-SESs occur, the UAS status is cancelled.

1-2


Chapter 1 Radio Link KPIs

Definition This KPI counts the time from the first second after 10 consecutive SESs occur

to the last second before 10 consecutive non-SESs occur.

Unit Second



1-3



This page intentionally left blank.

1-4


Chapter 2Ethernet Port KPIsTable of Contents

Octets Received.........................................................................................................2-1Packets received........................................................................................................2-1Broadcast packets received........................................................................................2-2Multicast packets received .........................................................................................2-2FCS packets received ................................................................................................2-2Undersize packets received........................................................................................2-3Oversize packets received .........................................................................................2-3Fragments packets received.......................................................................................2-3Jabber packets received.............................................................................................2-4Packets = 64 octets received......................................................................................2-4Packets 65 ~ 127 octets received...............................................................................2-4Packets 128 ~ 255 octets received.............................................................................2-5Packets 256 ~ 511 octets received .............................................................................2-5Packets 512 ~ 1023 octets received ...........................................................................2-5Packets 1024 ~ MAX octets received .........................................................................2-6

2.1 Octets ReceivedName Octets received

Description Number of octets received, including the octets of error packages, excluding

the leading series of frame, and including the octets of FCS

Definition This KPI counts the number of octets received at the equipment port.

Unit Octet

Statistics object ETH object on RCU board or RTUM board


2.2 Packets receivedName Packets received

Description Number of received data packets, including the error packet. (Note: Here, the

data packet at Ethernet port is the MAC packet specified in the 802.3 protocol)

Definition This KPI counts the number of packets received at the equipment port.

2-1



Unit Frame



2.3 Broadcast packets receivedName Broadcast packets received

Description Number of received broadcast packets, excluding the error packet and the

multicast packet.

Definition This KPI counts the number of broadcast packets received at the equipment

port.

Unit Frame



2.4 Multicast packets receivedName Multicast packets received

Description Number of received multicast packets, excluding the error packet and the

broadcast packet.

Definition This KPI counts the number of multicast packets received at the equipment port.

Unit Frame



2.5 FCS packets receivedName FCS packets received

Description Number of received CRC error frames, only including the packets of which the

packet length is between 64 octets and 1518 octets.

Definition This KPI counts the number of packets received at the equipment port of

which the packet length is between 64 octets and 1518 octets and the content

is incorrect.

Unit Frame

2-2


Chapter 2 Ethernet Port KPIs



2.6 Undersize packets receivedName Undersize packets received

Description Number of packets of which the packet length is smaller than 64 octets and

the content is correct

Definition This KPI counts the number of packets received at the equipment port of which

the packet length is smaller than 64 octets and the content is correct.

Unit Frame



2.7 Oversize packets receivedName Oversize packets received

Description Number of packets of which the packet length is larger than 1518 octets and

the content is correct


the packet length is larger than 1518 octets and the content is correct.

Unit Frame



2.8 Fragments packets receivedName Fragments packets received

Description Number of packets of which the packet length is smaller than 64 octets and

the content is incorrect


the packet length is smaller than 64 octets and the content is incorrect.

Unit Frame


2-3




2.9 Jabber packets receivedName Jabber packets received

Description Number of packets of which the packet length is larger than 1518 octets and

the content is incorrect


the packet length is larger than 1518 octets and the content is incorrect.

Unit Frame



2.10 Packets = 64 octets receivedName Packets = 64 octets received

Description Number of received data packets of which the packet length is 64 octets,

including the error packet.


the packet length is 64 octets.

Unit Frame



2.11 Packets 65 ~ 127 octets receivedName Packets 65 ~ 127 octets received

Description Number of received data packets of which the packet length is between 65

octets and 127 octets, including the error packet.


the packet length is between 65 octets and 127 octets.

Unit Frame



2-4


Chapter 2 Ethernet Port KPIs






Unit Frame








Unit Frame








Unit Frame



2-5



2.15 Packets 1024 ~ MAX octets receivedName Packets 1024 ~ MAX octets received


octets and MAX octets, including the error packet (MAX = 1522).


the packet length is between 1024 octets and MAX octets.

Unit Frame



2-6


Chapter 3ODU KPIsTable of Contents

Min TSL .....................................................................................................................3-1Max TSL ....................................................................................................................3-1Mean of TSL ..............................................................................................................3-2Min RSL .....................................................................................................................3-2Max RSL ....................................................................................................................3-2% High Threshold.......................................................................................................3-2% Low Threshold .......................................................................................................3-3Mean of RSL ..............................................................................................................3-399.9% RSL.................................................................................................................3-30.1% RSL...................................................................................................................3-4

3.1 Min TSLName Min TSL

Description Minimum transmission power

Definition This KPI counts the real-time transmission power, and the minimum

transmission power within 15 minutes or 24 hours.

Unit dB

Statistics object ODU object at RMU


3.2 Max TSLName Max TSL

Description Maximum transmission power

Definition This KPI counts the real-time transmission power, and the maximum

transmission power within 15 minutes or 24 hours.

Unit dB



3-1



3.3 Mean of TSLName Mean of TSL

Description Average transmission power

Definition This KPI counts the real-time transmission power, and the average transmission

power within 15 minutes or 24 hours.

Unit dB



3.4 Min RSLName Min RSL

Description Minimum receiving power

Definition This KPI counts the real-time receiving power, or the minimum receiving power


Unit dBm



3.5 Max RSLName Max RSL

Description Maximum receiving power

Definition This KPI counts the real-time receiving power, or the maximum receiving power


Unit dBm



3.6 % High ThresholdName % High Threshold

3-2


Chapter 3 ODU KPIs

Description Percent of power higher than the specified high power threshold (you can set

the high power threshold (RL High Threshold) through Configure > Radio Linkin the LMT interface)

Definition This KPI counts the percent of power higher than the high power threshold

of ODU.

Unit %



3.7 % Low ThresholdName % Low Threshold

Description Percent of power lower than the specified low power threshold (you can set the

low power threshold (RL Low Threshold) through Configure > Radio Linkin the LMT interface)

Definition This KPI counts the percent of power lower than the low power threshold

of ODU.

Unit %



3.8 Mean of RSLName Mean of RSL

Description Average receiving power

Definition This KPI counts the real-time receiving power, or the average receiving power


Unit dBm



3.9 99.9% RSLName 99.9% RSL

3-3



Description Normally, 99.9% of the receiving level is lower than the value of this KPI. The

smaller the difference between this value and the average value, the smaller

interference of the periodical burst signal.

Definition This KPI calculates the threshold value of receiving level larger than 99.9%

of the receiving level.

Unit dBm



3.10 0.1% RSLName 0.1% RSL

Description Normally, 0.1% of the receiving level is lower than the value of this KPI. The

smaller the difference between the average value and this value, the smaller

fading interference of the periodical burst signal.

Definition This KPI calculates the threshold value of receiving level smaller than 0.1%

of the receiving level.

Unit dBm



3-4


Chapter 4TDM Port KPIsTable of Contents

SDH Optical Port Statistics.........................................................................................4-1SDH Regenerator Section Statistics ...........................................................................4-2SDH Multiplex Section Statistics.................................................................................4-4

4.1 SDH Optical Port Statistics

4.1.1 Minimum receiving optical powerName Minimum receiving optical power

Description Minimum receiving optical power of the optical module

Definition This KPI counts the real-time receiving power of the optical module, and

counts the minimum receiving power of the optical module within 15 minutes

or 24 hours.

Unit dBmw

Statistics object Optical module at RTUB


4.1.2 Maximum receiving optical powerName Maximum receiving optical power

Description Maximum receiving optical power of the optical module

Definition This KPI counts the real-time receiving power of the optical module, and counts

the maximum receiving power of the optical module within 15 minutes or 24

hours.

Unit dBmw



4-1



4.1.3 Minimum transmitting optical powerName Minimum transmitting optical power

Description Minimum transmitting optical power of the optical module

Definition This KPI counts the real-time transmitting power of the optical module, and

counts the minimum transmitting power of the optical module within 15 minutes

or 24 hours.

Unit dBmw



4.1.4 Maximum transmitting optical powerName Maximum transmitting optical power

Description Maximum transmitting optical power of the optical module

Definition This KPI counts the real-time transmitting power of the optical module, and

counts the maximum transmitting power of the optical module within 15 minutes

or 24 hours.

Unit dBmw



4.2 SDH Regenerator Section Statistics

4.2.1 RS-UASName Regenerator Section Unavailable Second

Description The UAS status is detected after 10 consecutive SESs occur at the regenerator

section. The starting time of UAS is counted from the first second after 10

consecutive SESs occur at the regenerator section. When 10 consecutive

non-SESs occur at the regenerator section, the UAS status is cancelled.


to the last second before 10 consecutive non-SESs occur at the regenerator

section.

Unit Second

Statistics object TDM object at RTUB


4-2


Chapter 4 TDM Port KPIs

4.2.2 RS-ESName Regenerator Section Errored Second

Description Time during which one or multiple decoding errors occur at the regenerator

section

Definition This KPI counts the number of seconds during which one or multiple decoding

errors occur at the regenerator section within 15 minutes or 24 hours.

Unit Second



4.2.3 RS-SESName Regenerator Section Severely Errored Second

Description Time during which the percent of error blocks of the total blocks at the

regenerator section is at least 30% in a statistics period


the number of error blocks and the total number of RS blocks at the regenerator

section is at least 30% in a statistics period (15 minutes or 24 hours).

Unit Second



4.2.4 RS-BBEName Regenerator Section Background Block Errored

Description Number of error blocks not contained in SES at the regenerator section

Definition This KPI counts the number of error blocks not contained in SES at the

regenerator section within 15 minutes or 24 hours.

Unit Block



4-3



4.3 SDH Multiplex Section Statistics

4.3.1 MS-UASName Multiplex Section Unavailable Second

Description The UAS status is detected after 10 consecutive SESs occur at the multiplex

section. The starting time of UAS is counted from the first second after 10

consecutive SESs occur at the multiplex section. When 10 consecutive

non-SESs occur at the multiplex section, the UAS status is cancelled.


to the last second before 10 consecutive non-SESs occur at the multiplex

section.

Unit Second



4.3.2 MS-ESName Multiplex Section Errored Second

Description Time during which one or multiple decoding errors occur at the multiplex section

Definition This KPI counts the number of seconds during which one or multiple decoding

errors occur at the multiplex section within 15 minutes or 24 hours.

Unit Second



4.3.3 MS-SESName Multiplex Section Severely Errored Second

Description Time during which the percent of error blocks of the total blocks at the multiplex

section is at least 15%


the number of error blocks and the total number of blocks at the multiplex

section is at least 15% in a statistics period (15 minutes or 24 hours).

Unit Second



4-4


Chapter 4 TDM Port KPIs

4.3.4 MS-BBEName Multiplex Section Background Block Errored

Description Number of error blocks not contained in SES at the multiplex section

Definition This KPI counts the number of error blocks not contained in SES at the multiplex

section within 15 minutes or 24 hours.

Unit Block



4-5




4-6


Chapter 5WLETH Port KPIsTable of Contents

Los.............................................................................................................................5-1Utilization ...................................................................................................................5-1

5.1 LosName Los

Description Ethernet packet loss condition from the RCU board to the RMU board (Note:

The system can only choose Ethernet service data in radio transmission due to

radio bandwidth limit. WLETH reflects the packet loss condition after logically

selective reception from RCU to RMU inside the equipment, and it also reflects

the radio link bandwidth usage. )

Definition This KPI counts the Ethernet packet loss rate at the air interface after logically

selective reception from the RCU board to the RMU board. Packet loss rate

= 100 * Number of packets lost in the period/Number of packets received

in the period

Unit %

Statistics object Ethernet transmission object at RMU

Statistics period 15 minutes or 24 hours

5.2 UtilizationName Utilization

Description Air-interface bandwidth usage by the total number of bits transmitted from the

RCU board to the RMU board.

Definition This KPI counts the air-interface bandwidth usage by the total number of

Ethernet bits transmitted from the RCU board to the RMU board. Usage = 100 *

Total number of bits received in the period/Period * Bandwidth

Unit %

Statistics object Ethernet transmission object at RMU

Statistics period 15 minutes or 24 hours

5-1




5-2


GlossarySES- Severely Errored Second

I

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