Abis D-Channel Measurement

7/17/2019 Abis D-Channel Measurement

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Nokia Siemens Networks

GSM/EDGE BSS, rel.

RG10(BSS), operatingdocumentation, issue 06

226 Abis D-Channel Measurement

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Table of ContentsThis document has 11 pages.

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

1 226 Abis D-Channel Measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

2 Counters of Abis D-channel Measurement . . . . . . . . . . . . . . . . . . . . . . . 7

2.1 226000 / EXTERNAL PCM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

2.2 226001 / EXTERNAL TSL. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

2.3 226002 / EXTERNAL SUB TSL. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

2.4 226003 / D-CHANNEL BIT RATE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

2.5 226004 / DOWNLINK FRAME ERRORS. . . . . . . . . . . . . . . . . . . . . . . . . 8

2.6 226005 / DOWNLINK OCTETS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

2.7 226006 / UPLINK FRAME ERRORS. . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

2.8 226007 / UPLINK OCTETS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

2.9 226008 / UPLINK I FRAME OCTETS . . . . . . . . . . . . . . . . . . . . . . . . . . 10

2.10 226009 / UPLINK UI FRAME OCTETS . . . . . . . . . . . . . . . . . . . . . . . . . 11



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List of TablesTable 1 Measurement description of Abis D-channel . . . . . . . . . . . . . . . . . . . . . . 6

Table 2 Counters of Abis D-channel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6



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226 Abis D-Channel Measurement Summary of changes

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Summary of changesChanges between document issues are cumulative. Therefore, the latest document

issue contains all changes made to previous issues.

Changes made between issues 1-1 and 1-0

A note about the statistics measurement of multiplexed D-channels has been added to

the introductory chapter.

Changes made in issue 1-0

The measurement is new in S13.



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1 226 Abis D-Channel MeasurementThe Abis D-channel measurement provides information on the end-to-end performance

of the Abis transmission connection. It includes information on framing errors and trans-

mitted octets together with uplink UI and I frame information of Abis D-channels.

g When submultiplexing of Abis timeslots is used in the BTS, note that measurements

cannot be collected per each single multiplexed D-channel separately. Instead, one

of the D-channels acts as a ‘master’ channel and the statistics of all the multiplexed

D-channels are collected on that channel.

In practice, this concerns the BTSPlus.

Measurement description

Measurement counters

Measurement Abis D-channel

Measurement abbreviation Abis D-channel

Product BSC

Product software release S13

Target name Abis D-channel

Table 1 Measurement description of Abis D-channel

Counter Counter number

EXTERNAL PCM 226000

EXTERNAL TSL 226001

EXTERNAL SUB TSL 226002

D-CHANNEL BIT RATE 226003

DOWNLINK FRAME ERRORS 226004

DOWNLINK OCTETS 226005

UPLINK FRAME ERRORS 226006

UPLINK OCTETS 226007

UPLINK I FRAME OCTETS 226008

UPLINK UI FRAME OCTETS 226009

Table 2 Counters of Abis D-channel



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226 Abis D-Channel Measurement Counters of Abis D-channel Measurement

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2 Counters of Abis D-channel Measurement

2.1 226000 / EXTERNAL PCM

2.2 226001 / EXTERNAL TSL

2.3 226002 / EXTERNAL SUB TSL

Counter ID: 226000 Network element name: EXTERNAL PCM

Version: 1.0 NetAct name: EXT_PCM

Description: External PCM number of D-channel.

Updated: At the end of the measurement period.

Logical type: Variable Trigger type: Event Sampling interval:

Unit: Integer number Range: Example values:

Dependencies with other counters:

Operability class:

Related to feature:

BSS20817: End to End Downlink Abis Performance Monitor

Related to standard:

3GPP Measurement name (Clause header):

3GPP Measurement type:

Exceptions to related standard:

Used from release: S13 Definition updated in release:

Counter ID: 226001 Network element name: EXTERNAL TSL

Version: 1.0 NetAct name: EXT_TSL

Description: External TSL number of D-channel.





Operability class:

Related to feature:







Counter ID: 226002 Network element name: EXTERNAL SUB TSL



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Counters of Abis D-channel Measurement

2.4 226003 / D-CHANNEL BIT RATE

2.5 226004 / DOWNLINK FRAME ERRORS

Version: 1.0 NetAct name: EXT_SUB_TSL

Description: External SUB-TSL number of D-channel.





Operability class:

Related to feature:







Counter ID: 226003 Network element name: D-CHANNEL BIT RATE

Version: 1.0 NetAct name: D_CHANNEL_RATE

Description: D-channel bit rate in kbit/s.


Logical type: Variable Trigger type: Event Sampling interval:Unit: kbit/s Range: Example values:


Operability class:

Related to feature:







Counter ID: 226004 Network element name: DOWNLINK FRAME ERRORS

Version: 1.0 NetAct name: DL_FRAME_ERRORS

Description: Number of frames in bit errors received in downlink.

Updated: In the following cases: frame abort, frame length error, or CRC error when the LAPD frame is

received in the BTS.

Logical type: Sum Trigger type: Event Sampling interval:



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2.6 226005 / DOWNLINK OCTETS

2.7 226006 / UPLINK FRAME ERRORS



Operability class:

Related to feature:







Counter ID: 226005 Network element name: DOWNLINK OCTETS

Version: 1.0 NetAct name: DL_OCTETS

Description: Number of received octets in downlink.

Updated: When the LAPD frame is received in the BTS. The flag octets and the CRC octects are not

included to the number of octets.


Unit: byte Range: Example values:


Operability class:

Related to feature:







Counter ID: 226006 Network element name: UPLINK FRAME ERRORS

Version: 1.0 NetAct name: UL_FRAME_ERRORS

Description: Number of frames in bit errors received in uplink.

Updated: In the following cases: frame abort, frame length error, or CRC error when the LAPD frame is

received in the BSC.




Operability class:



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Counters of Abis D-channel Measurement

2.8 226007 / UPLINK OCTETS

2.9 226008 / UPLINK I FRAME OCTETS

Related to feature:







Counter ID: 226007 Network element name: UPLINK OCTETS

Version: 1.0 NetAct name: UL_OCTETS

Description: Number of octets received in uplink.

Updated: When the LAPD frame is received in the BSC. The flag octets and the CRC octects are not

included in the number of octets.




Operability class:

Related to feature:







Counter ID: 226008 Network element name: UPLINK I FRAME OCTETS

Version: 1.0 NetAct name: UL_I_FRAME_OCTETS

Description: Number of I frame octets received in uplink.

Updated: When the LAPD frame is received in the BSC.


Unit: byte Range: Example values:


Operability class:

Related to feature:








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2.10 226009 / UPLINK UI FRAME OCTETS


Counter ID: 226009 Network element name: UPLINK UI FRAME OCTETS

Version: 1.0 NetAct name: UL_UI_FRAME_OCTETS

Description: Number of UI frame octets received in uplink.

Updated: When the LAPD frame is received in the BSC.




Operability class:

Related to feature:







Abis D-Channel Measurement

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