Et bsc counter Nokia

GSM/EDGE BSS, Rel. RG30(BSS), Operating Documentation, Issue 02

Reference

65 ET BSC Measurement

DN9813593

Issue 5-0Approval Date 2008-03-18

Confidential

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Id:0900d8058098aef8Confidential

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The same text in German:

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Installation, Betrieb, Wartung und sonstige Handhabung des Produktes darf nur durch geschultes und qualifiziertes Personal unter Beachtung der anwendbaren Sicherheits-anforderungen erfolgen.

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Table of contentsThis document has 24 pages.

Summary of changes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

1 65 ET BSC Measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

2 Counters of ET BSC Measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82.1 065000 / TOTAL TIME. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82.2 065001 / AVAILABLE TIME. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82.3 065002 / ERRORED SECONDS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92.4 065003 / SEVERELY ERR SEC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92.5 065004 / DEGRADED MINUTES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 102.6 065005 / TOTAL TIME FOR REMOTE END . . . . . . . . . . . . . . . . . . . . . 112.7 065006 / AVAILABLE TIME FOR REMOTE END . . . . . . . . . . . . . . . . . 112.8 065007 / ERRORED SECONDS FOR REMOTE END . . . . . . . . . . . . . 122.9 065008 / SEVERELY ERR SEC FOR REMOTE END . . . . . . . . . . . . . 132.10 065009 / DEGRADED MINUTES FOR REMOTE END. . . . . . . . . . . . . 132.11 065010 / INCOMING SIGNAL MISSING CLASS 1 . . . . . . . . . . . . . . . . 142.12 065011 / INCOMING SIGNAL MISSING CLASS 2 . . . . . . . . . . . . . . . . 142.13 065012 / INCOMING SIGNAL MISSING CLASS 3 . . . . . . . . . . . . . . . . 152.14 065013 / INCOMING SIGNAL MISSING CLASS 4 . . . . . . . . . . . . . . . . 152.15 065014 / FRAME ALIGN LOST CLASS 1 . . . . . . . . . . . . . . . . . . . . . . . 162.16 065015 / FRAME ALIGN LOST CLASS 2 . . . . . . . . . . . . . . . . . . . . . . . 162.17 065016 / FRAME ALIGN LOST CLASS 3 . . . . . . . . . . . . . . . . . . . . . . . 172.18 065017 / FRAME ALIGN LOST CLASS 4 . . . . . . . . . . . . . . . . . . . . . . . 172.19 065018 / AIS RECEIVED CLASS 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . 182.20 065019 / AIS RECEIVED CLASS 2. . . . . . . . . . . . . . . . . . . . . . . . . . . . 182.21 065020 / AIS RECEIVED CLASS 3. . . . . . . . . . . . . . . . . . . . . . . . . . . . 192.22 065021 / AIS RECEIVED CLASS 4. . . . . . . . . . . . . . . . . . . . . . . . . . . . 192.23 065022 / ALARM FROM REMOTE END CLASS 1 . . . . . . . . . . . . . . . . 202.24 065023 / ALARM FROM REMOTE END CLASS 2 . . . . . . . . . . . . . . . . 202.25 065024 / ALARM FROM REMOTE END CLASS 3 . . . . . . . . . . . . . . . . 212.26 065025 / ALARM FROM REMOTE END CLASS 4 . . . . . . . . . . . . . . . . 212.27 065026 / FRAME ALIGN SIGNAL ERRORS CLASS 1 . . . . . . . . . . . . . 222.28 065027 / FRAME ALIGN SIGNAL ERRORS CLASS 2 . . . . . . . . . . . . . 222.29 065028 / FRAME ALIGN SIGNAL ERRORS CLASS 3 . . . . . . . . . . . . . 232.30 065029 / FRAME ALIGN SIGNAL ERRORS CLASS 4 . . . . . . . . . . . . . 232.31 065030 / NEGATIVE SLIPS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 242.32 065031 / POSITIVE SLIPS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

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List of tablesTable 1 Measurement description of ET BSC Measurement . . . . . . . . . . . . . . . . 6Table 2 CRC times and error counters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6Table 3 Disturbances 1/2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6Table 4 Disturbances 2/2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7Table 5 Frame errors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7Table 6 Slips . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

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65 ET BSC Measurement Summary of changes

Id:0900d805805a4f63Confidential

Summary of changesChanges between document issues are cumulative. Therefore, the latest document issue contains all changes made to previous issues.

Changes made between issues 5-0 and 4-1Counter table format changed.

Changes made between issues 4-1 and 4-0Editorial corrections.

Changes made between issues 4-0 and 3-0The document has been revised throughout to comply with the latest documentation standards. No changes have been made in the document due to changes in the soft-ware.

The name of the document and of Chapter 1 have been changed from BSC Counters: ET BSC Measurement to 65 ET BSC Measurement.

Measurement description table has been added to Chapter 1.

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1 65 ET BSC MeasurementThe ET BSC measurement is related to BSS7072 ET Downtime Statistics. The ET BSC measurement counters characterise the signal quality of each 2Mbit/s interface of an ET (exchange terminal) controlled by the BSC. The ET BSC measurement does not use an output interval of 15 or 30 minutes.

The CRC counters are updated only if the CRC mode of the ET is in use.

Measurement description

Measurement counters

• CRC times and error counters CRC times and errors are gathered into the following counters from the near and the remote end based on the ITU-T recommendation G.821.More detailed calculations can be made according to the recommendation.

• DisturbancesThese counters give the information on all functional disturbances detected by an ET.

MeasurementMeasurement IDMeasurement abbreviation

ET BSC Measurement65ET_BSC

Product BSC

Product software release S7

Target name PCM

Table 1 Measurement description of ET BSC Measurement

Total time 065000

Available time 065001

Errored seconds 065002

Severely errored seconds 065003

Degraded minutes 065004

Total time for remote end 065005

Available time for remote end 065006

Errored seconds for remote end 065007

Severely errored seconds for remote end 065008

Degraded minutes for remote end 065009

Table 2 CRC times and error counters

Incoming signal missing, class 1 065010


Table 3 Disturbances 1/2

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65 ET BSC Measurement 65 ET BSC Measurement


• Frame errors

• SlipsSlips in the transmission equipment are caused by synchronisation problems.

Related topics

• Counters of ET BSC Measurement • BSC Measurement Counters Displaying Program (FOXMEA) • Performance Measurements • BSC Statistics Administration



Frame alignment lost, class 1 065014




AIS received, class 1 065018




Table 3 Disturbances 1/2 (Cont.)

Alarm from remote end, class 1 065022




Table 4 Disturbances 2/2

Frame alignment signal errors, class 1 065026




Table 5 Frame errors

Negative slips 065030

Positive slips 065031

Table 6 Slips

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Counters of ET BSC Measurement

2 Counters of ET BSC Measurement

2.1 065000 / TOTAL TIME

2.2 065001 / AVAILABLE TIME

Counter ID: 065000 Network element name: TOTAL TIME

Version: 2.1 NetAct name: TOTAL_TIME

Description: The total time passed since the last reset of the counter.

Updated: Continuously

Logical type: Sum Trigger type: Duration Sampling interval:

Unit: s Range: Example values:

Dependencies with other counters:

Operability class:

Related to feature:

BSS7072: ET Downtime Statistics

Related to standard:

3GPP Measurement name (Clause header):

3GPP Measurement type:

Exceptions to related standard:

Used from release: S7 Definition updated in release:

Counter ID: 065001 Network element name: AVAILABLE TIME

Version: 2.1 NetAct name: AVAIL_TIME

Description: The total time that the connection has been available.

Counters 065002-065004 help detecting smaller disturbances in the connection. Note that those counters are more frequently updated than this counter.

Updated: The connection is unavailable when the bit error ratio (BER) of each second is worse than 1*(1/1000) for a period of ten consecutive seconds. A new period of available time begins with the first second of a period of ten consecutive seconds, each of which has a BER better than 1/1000.

If this counter is smaller than counter 065000, it indicates that there have been major problems in the connection.



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65 ET BSC Measurement Counters of ET BSC Measurement


2.3 065002 / ERRORED SECONDS

2.4 065003 / SEVERELY ERR SEC


065002: ERRORED SECONDS

065003: SEVERELY ERR SEC

065004: DEGRADED MINUTES

Operability class:

Related to feature:







Counter ID: 065002 Network element name: ERRORED SECONDS

Version: 2.1 NetAct name: ERR_SEC

Description: The number of errored seconds.

Updated: When in a one-second period one or more bits are in error. This counter is updated every time there is even a minor error in the connection.

Logical type: Sum Trigger type: Event Sampling interval:



Operability class:

Related to feature:







Counter ID: 065003 Network element name: SEVERELY ERR SEC

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2.5 065004 / DEGRADED MINUTES

Version: 2.1 NetAct name: ERR_SEC_SEVERE

Description: The number of severely errored seconds.

Updated: When a one-second period has a bit error ratio (BER) greater than or equal to 1*(1/1000). For a connection of 64 kbit/s, this means that a SES is registered when there are 64 or more errors in the one-second period.




Operability class:

Related to feature:







Counter ID: 065004 Network element name: DEGRADED MINUTES

Version: 2.1 NetAct name: DEGRADED_MIN

Description: The number of degraded minutes.

Updated: When a bit rate error ratio (BER) is greater than 1*(1/1000000) during one minute.

NOTE! If there are SESs during the one minute, those seconds are not calculated for the one-minute period. Therefore, the measured time can be longer than one minute.


Unit: min Range: Example values:


Operability class:

Related to feature:







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2.6 065005 / TOTAL TIME FOR REMOTE END

2.7 065006 / AVAILABLE TIME FOR REMOTE END

Counter ID: 065005 Network element name: TOTAL TIME FOR REMOTE END

Version: 2.1 NetAct name: REMOTE_TOTAL_TIME

Description: The time passed since the last reset of the counter.

Updated: Continuously




Operability class:

Related to feature:







Counter ID: 065006 Network element name: AVAILABLE TIME FOR REMOTE END

Version: 2.1 NetAct name: REMOTE_AVAIL_TIME

Description: The time when the connection has been available.

Counters 065007-065009 help detecting smaller disturbances in the connection. Note that those counters are more frequently updated than this counter.

Updated: The connection is unavailable when the bit error ratio (BER) of each second is worse than 1*(1/1000) for a period of ten consecutive seconds. A new period of available time begins with the first second of a period of ten consecutive seconds, each of which has a BER better than 1/1000.

If this counter is smaller than counter 065005, it indicates that there have been major problems in the connection.



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2.8 065007 / ERRORED SECONDS FOR REMOTE END


065007: ERRORED SECONDS FOR REMOTE END

065008: SEVERELY ERR SEC FOR REMOTE END

065009: DEGRADED MINUTES FOR REMOTE END

Operability class:

Related to feature:







Counter ID: 065007 Network element name: ERRORED SECONDS FOR REMOTE END

Version: 2.1 NetAct name: REMOTE_ERR_SEC

Description: The number of errored seconds.

Updated: When in a one-second period one or more bits are in error. This counter is updated every time there is even a minor error in the connection.




Operability class:

Related to feature:







DN9813593 13



2.9 065008 / SEVERELY ERR SEC FOR REMOTE END

2.10 065009 / DEGRADED MINUTES FOR REMOTE END

Counter ID: 065008 Network element name: SEVERELY ERR SEC FOR REMOTE END

Version: 2.1 NetAct name: REMOTE_ERR_SEC_SEVERE

Description: The number of severely errored seconds.

Updated: When a one-second period has a bit error ratio (BER) greater than or equal to 1*(1/1000). For a connection of 64 kbit/s, this means that a SES is registered when there are 64 or more errors in the one-second period.




Operability class:

Related to feature:







Counter ID: 065009 Network element name: DEGRADED MINUTES FOR REMOTE END

Version: 2.1 NetAct name: REMOTE_DEGRADED_MIN

Description: The number of degraded minutes.

Updated: When a bit error ratio (BER) is grater than 1*(1/1000000) during one minute.

NOTE! If there are SESs during the one minute, those seconds are not calculated for the one-minute period. Therefore, the measured time can be more than one minute.


Unit: min Range: Example values:


Operability class:

Related to feature:






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2.11 065010 / INCOMING SIGNAL MISSING CLASS 1



Counter ID: 065010 Network element name: INCOMING SIGNAL MISSING CLASS 1

Version: 2.1 NetAct name: INCOMING_SIG_MISSING_1

Description: The total number of missing incoming signals, class 1.

Updated: When the incoming signal is missing continuously for a minimum of 10 ms (default) and a maximum of 50 ms (default).


Unit: Integer number Range: Example values:


Operability class:

Related to feature:














Operability class:

Related to feature:






DN9813593 15













Operability class:

Related to feature:










Updated: When the incoming signal is missing continuously for more than 1000 ms (default).




Operability class:

Related to feature:







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2.15 065014 / FRAME ALIGN LOST CLASS 1


Counter ID: 065014 Network element name: FRAME ALIGN LOST CLASS 1

Version: 2.1 NetAct name: FRAME_ALIGN_LOST_1

Description: The total number of lost frame alignments, class 1.

Updated: When the frame alignment is lost continuously for a minimum of 10 ms (default) and a maximum of 50 ms (default).




Operability class:

Related to feature:














Operability class:

Related to feature:







DN9813593 17












Operability class:

Related to feature:









Description: The total number of frame lost alignments, class 4.

Updated: When the frame alignment is lost continuously for more than 1000 ms (default).




Operability class:

Related to feature:







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2.19 065018 / AIS RECEIVED CLASS 1


Counter ID: 065018 Network element name: AIS RECEIVED CLASS 1

Version: 2.1 NetAct name: AIS_RECEIVED_1

Description: The total number of received alarm indication signals (AIS), class 1.

Updated: When the AIS is received continuously for a minimum of 10 ms (default) and a maximum of 50 ms (default).




Operability class:

Related to feature:














Operability class:

Related to feature:







DN9813593 19












Operability class:

Related to feature:










Updated: When the AIS is received continuously for more than 1000 ms (default).




Operability class:

Related to feature:







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2.23 065022 / ALARM FROM REMOTE END CLASS 1


Counter ID: 065022 Network element name: ALARM FROM REMOTE END CLASS 1

Version: 2.1 NetAct name: REMOTE_ALARM_1

Description: The total number of alarms from the remote end, class 1.

Updated: When the alarm from the remote end is received continuously for a minimum of 10 ms (default) and a maximum of 50 ms (default).




Operability class:

Related to feature:














Operability class:

Related to feature:







DN9813593 21












Operability class:

Related to feature:










Updated: When the alarm from the remote end is received continuously for more than 1000 ms (default).




Operability class:

Related to feature:







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2.27 065026 / FRAME ALIGN SIGNAL ERRORS CLASS 1


Counter ID: 065026 Network element name: FRAME ALIGN SIGNAL ERRORS CLASS 1

Version: 2.1 NetAct name: FRAME_ALIGN_SIG_ERR_1

Description: The total number of frame alignment signal errors, class 1.

Updated: When the maximum of 39 (default) frame alignment signal errors are received within a five-second period.




Operability class:

Related to feature:










Updated: When the minimum of 40 (default) and the maximum of 79 (default) frame alignment signal errors are received within a five-second period.




Operability class:

Related to feature:







DN9813593 23








Updated: When the minimum of 80 (default) and the maximum of 159 (default) frame alignment signal errors are received within a five-second period.




Operability class:

Related to feature:










Updated: When more than 159 (default) frame alignment signal errors are received within a five-second period.




Operability class:

Related to feature:







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2.31 065030 / NEGATIVE SLIPS

2.32 065031 / POSITIVE SLIPS

Counter ID: 065030 Network element name: NEGATIVE SLIPS

Version: 2.1 NetAct name: POSITIVE_SLIPS

Description: The total number of negative slips.

Updated: When negative slips are detected.




Operability class:

Related to feature:







Counter ID: 065031 Network element name: POSITIVE SLIPS

Version: 2.1 NetAct name: NEGATIVE_SLIPS

Description: The total number of positive slips.

Updated: When positive slips are detected.




Operability class:

Related to feature:







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