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8/2/2019 Performance Measurements Rel_S12
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Performance Measurements
DN9813612Issue 10-0 en
# Nokia Corporation 1 (22)
BSC3119
Nokia BSC/TCSM, Rel. S12, Product
Documentation, v.1
8/2/2019 Performance Measurements Rel_S12
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The information in this document is subject to change without notice and describes only theproduct defined in the introduction of this documentation. This document is intended for the useof Nokia's customers only for the purposes of the agreement under which the document issubmitted, and no part of it may be reproduced or transmitted in any form or means without the
prior written permission of Nokia. The document has been prepared to be used by professionaland properly trained personnel, and the customer assumes full responsibility when using it.Nokia welcomes customer comments as part of the process of continuous development andimprovement of the documentation.
The information or statements given in this document concerning the suitability, capacity, orperformance of the mentioned hardware or software products cannot be considered binding butshall be defined in the agreement made between Nokia and the customer. However, Nokia hasmade all reasonable efforts to ensure that the instructions contained in the document areadequate and free of material errors and omissions. Nokia will, if necessary, explain issueswhich may not be covered by the document.
Nokia's liability for any errors in the document is limited to the documentary correction of errors.NOKIA WILL NOT BE RESPONSIBLE IN ANY EVENT FOR ERRORS IN THIS DOCUMENTOR FOR ANY DAMAGES, INCIDENTAL OR CONSEQUENTIAL (INCLUDING MONETARYLOSSES), that might arise from the use of this document or the information in it.
This document and the product it describes are considered protected by copyright according tothe applicable laws.
NOKIA logo is a registered trademark of Nokia Corporation.
Other product names mentioned in this document may be trademarks of their respectivecompanies, and they are mentioned for identification purposes only.
Copyright Nokia Corporation 2007. All rights reserved.
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Contents
Contents 3
List of tables 4
List of figures 5
Summary of changes 7
1 Performance measurements 91.1 Call control measurements (CSW) 111.2 GPRS measurements (PSW) 171.3 Transmission measurements 181.4 Observations 20
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Contents
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List of tables
Table 1. Example of a counter table 9
Table 2. Transmission measurement and equipment types 19
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List of figures
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List of figures
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Summary of changes
Changes between document issues are cumulative. Therefore, the latest document
issue contains all changes made to previous issues.
Changes made between issues 10 and 91
Information on the counter numbering of 21 Radio Measurement Report, 24
Dropped Call Observation, and 50 BSC Level Clear Code Measurement has been
added.
New fields Trigger type and Sampling interval have been added to the table
Example of a counter table, and the description of the Unitfield has been revised.
Information on spare counters and a reference to NOLS Documentation Center's
Reference Information Service has been added.
Three new call control measurement types have been added: 106 CS DTMMeasurement, 107 AMR RX Quality Measurement, and 108 DFCA SAIC
Measurement.
One new GPRS measurement type has been added: 105 PS DTM Measurement.
One observation type has been removed because it is no longer supported: 23
ISDN Abis Observation.
26 Position Based Services Observation has been changed into 30 Position Based
Services Observation.
References to online observations have been removed because online
observations are no longer supported.
Reference to TCSM2 has been removed.
Editorial changes have been made.
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Summary of changes
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Changes made between issues 92 and 91
The description of Drop Call Breakdown Observation has been updated.
Changes made between issues 91 and 9
A new call control measurement, 109 Soft Channel Capacity Measurement, has
been added.
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1 Performance measurementsCounters are numbered according to the measurement type XXXYYY, where
XXX is the measurement type and YYY is the counter number of the
measurement. 21 Radio Measurement Report, 24 Dropped Call Observation, and
50 BSC Level Clear Code Measurement are exceptions: their numbering is
XXXYYYY.
Information about each counter, including its name, number, description, and
other details are presented in a table. The table fields are explained in the table
Example of a counter table.
Table 1. Example of a counter table
Number
Name
Release
Definition updated
Number of the counter
Name of the counter
Original release. For spare counters,indicates the release where the spare
counter was created in the BSC.
Release where the counter was updated. For
spare counters, this field may include
several entries. The release where the spare
counter was made official is followed by the
explanation (Name changed).
Trigger points Includes references to signalling charts if the
measurement has signalling charts.
Description Explains what the counter is for.
Updated Informs when the counter is updated.
Trigger type Specifies the type of events that trigger the counter:
event, sample, or duration.
Dependencies with other counters/PI(s) Informs if the counter is interdependent with other
counters.
Feature Specifies the software product the counter is related
to.
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Table 1. Example of a counter table (cont.)
Number
Name
Release
Definition updated
Number of the counter
Name of the counter
Original release. For spare counters,
indicates the release where the spare
counter was created in the BSC.
Release where the counter was updated. For
spare counters, this field may include
several entries. The release where the spare
counter was made official is followed by the
explanation (Name changed).
Example values Shows examples of the values the counter can
receive.
Impact Explains the impact, for example, call cleared.
Reason for the impact Explains the reason for the impact.
Logical type Can be, for example, average or peak. If the logical
type has not been defined in the table, the counter is
a basic counter.
Note! The denominator counter value is always >0.
Unit Unit in which the values of the counter are given.
Most often the unit is an integer number. It can also
be, for example, per cent, kB, ms.
Range Limits to the values the counter can receive.
Sampling interval If the trigger type is sample, specifies the interval at
which the samples are taken.
The fields of the counter tables are filled in by taking into account the different
nature of each measurement and observation. For this reason, the tables may vary
in size and content. For example, if example values are not given for a counter,
the field Example values is not included in the actual counter table.
In some cases there can be counter tables with the same counter number. In such
cases, all the information is technically coded in one counter, but separated in the
documentation to improve readability.
Measurements may also include spare counters. They are used for implementing
new counters in the BSC and Nokia NetAct for temporary use between main
releases. When a new counter is needed between main releases, the chosen spare
counter is put into use in the BSC and it starts collecting data to NetAct. In the
BSC documentation, the counter receives a definition, but its name remains as
SPARExxxxxx. In the next NetAct main release, the counter is made official, that
is, it receives a proper name. After this it is included also in the BSC
documentation with a proper name.
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Measurements and observations are divided into the following groups according
to their function:
.
Call control measurements (CSW). GPRS measurements (PSW)
. Transmission measurements
. Observations
In general, measurements consist of several counters that measure various
matters.
Counters essential for the operation of the network are so-called public counters,
whereas counters for special situations are so-called expert counters. Public
counters are documented with the accuracy of signalling charts and trigger points.Measurements that include signalling charts are marked with the text (incl.
signalling charts) after the name of the document.
Optional measurements are marked with (optional) after the name of the
document.
BSC counter information is also directly available and accessible via the
Reference Information Service in NOLS Documentation Center. The information
in the Reference Information Service is updated more frequently than the BSC
NED browser environment.
1.1 Call control measurements (CSW)
Call control measurements measure call-related issues, such as congestion on a
specific channel or area.
Call control measurements can be divided into two groups:
. circuit-switched (CSW) measurements
. packet-switched (PSW) measurements
The packet-switched measurements are referred to as GPRS measurements. For
more information, see 1.2 GPRS measurements (PSW).
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No Measurement/optionality Purpose/function Level/role/
application
1 Traffic Measurement (incl. signalling
charts)
Registers information related to the
SDCCH and TCHs. Provides informationon, for example, seizure attempts and
successful seizures for the SDCCH and
the TCH.
BTS-level
2 Resource Availability Measurement Registers information on the availability
of TCH and SDCCH. Provides
information on, for example, TCH
congestion time and the peak number of
busy TCHs and SDCCHs.
BTS-level
3 Resource Access Measurement (incl.
signalling charts)
Registers information on all CCCHs of
the BSC. Indicates the number of paging
messages sent to the BTS, and
successful seizures for mobile-originated
(MO) and mobile-terminated (MT) calls.
BTS+TRX -level
4 Handover Measurement (incl.
signalling charts)
Registers information on the number of
handovers (HO) controlled by the MSC
or the BSC. Records the number of the
incoming, outgoing, or intra-cell HOs,
and the number of successful and
unsuccessful attempts, seizures, and
HOs. The HOs are sorted according to
direction, where appropriate.
BTS-level
5 Power Control Measurement Registers information on how the BSC
controls the power level and signal
quality of the MS and the BTS. Provides
information, for example, on the qualityand strength of the signals both in uplink
and downlink directions.
BTS+TRX -level
6 Load Measurement Registers information on the peak and
the average load rate of the computer
units.
BSC-level
7 Availability Measurement Registers information on the restart and
the disconnection times of the computer
units. Used for field reporting.
BSC-level
8 OSI/X.25 Measurements Provides information on the four lowest
layers of the OSI stack, that is,
information on how the connection
between the BSC and Nokia NetActfunctions.
OSI-channel+Unit nbr
-level
13 Undefined Adjacent Cell Measurement Registers statistics on cells, which have
not been defined as adjacent cells but
are among those six neighbouring cells
that the MS receives best. Provides
information on the signal strength of
those cells.
BTS-level
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No Measurement/optionality Purpose/function Level/role/
application
14 RX Quality Statistics Measurement
(optional)
Registers information both in uplink and
downlink directions on the TRXs.Provides information on the RX quality
band frequencies with the accuracy of
one TRX, BTS or BSC. The RX quality
frequencies are collected only of the
TCHs.
BTS+TRX -level
15 Handover Adjacent Cell Measurement
(incl. signalling charts) (optional)
Registers information on handover
attempts, successful handovers and
failed handovers due to lack of radio
resources. Provides information on how
handovers between different cells are
divided.
BTS-level (+HO
category level
optionally
50 BSC Level Clear Code Measurement Collects statistics on clear codes for the
BSC during calls. Registers failures thathave occurred during a call (signalling or
conversation). Provides information on
the quality of service in the BSC with the
accuracy of a cell.
BSC-level
51 BSC Level Clear Code (PM)
Measurement(incl. signalling charts)
Provides information on transactions in
the BSC, for example, location update
and failure sum counters. The
information is especially relevant from
the point of view of determining the
service level.
BSC-level
52 Underlay Overlay Statistics
Measurement (incl. signalling charts)(optional)
Registers information on the performance
of the Intelligent Underlay-Overlayprocedure. Provides information with the
accuracy of one TRX.
BTS+TRX -level
(+freg. group)
53 RX Level Statistics Measurement
(optional)
Registers information on the level and
quality of RX signal on both uplink and
downlink direction. Provides the
information in six classes per RX quality
band in both uplink and downlink
directions.
BTS+TRX -level
54 Link Balance per MS Classmark
Measurement (optional)
Registers information on the link balance
in the network, that is, the difference
between the uplink and downlink signal
levels. The link balance difference is
divided into 11 subclasses: 6 classes for
negative imbalance, one class for
balance and 5 classes for positive
imbalance. The measurement provides
the information with the accuracy of one
cell.
BTS-level
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application
55 Timing Advance Statistics
Measurement (optional)
Registers information on the timing
advance during calls. With thisinformation you can estimate the
distribution of the subscribers within a
cell area. The measurement provides the
information with the accuracy of either
one BTS or one BSC.
The timing advance values are divided
into ten subclasses. The user sets the
ranges for the classes, for example, the
range can be denser in a micro cell than
in a macro cell.
BTS-level
56 Resource Availability per BSC
Measurement
Registers information on the availability
of the TRXs on the BSC level. The
number of the TRXs which are notavailable is divided into three categories
according to what causes the
unavailability: the user, internal reasons,
and external reasons.
BSC-level
57 BSC Level Clear Code (SERLEV)
Measurement (incl. signalling charts)
Registers statistics about clear codes in
a BSC during calls. Provides general
information on transactions in the BSC.
BTS-level
58 MS Speed Detection Measurement
(optional)
Collects information on the speed of MS.
Provides information on slow moving and
fast moving MSs. The information is
collected for each cell. The MS speed
statistics is collected only from the TCHs.There are three MS speed classes.
BTS-level
59 Dual Band Measurement (optional) Provides information on the traffic
distribution, that is, on TCH holding times
and reservations of single and dual band
subscribers. The information is collected
for each cell.
BTS-level
60 C/I Ratio Measurement (optional) Collects statistics on the degree of the
interference by measuring traffic intensity
(Erlang) on a specified C/I (carrier/
interference) ratio band. Estimates the
level of the potential co- and adjacent
channel interference in the radio network.
BTS-level (LAC-CI)
61 Hot Spot Measurement (optional) Registers information on the adjacent cell
RX levels and on timing advance
distribution. Finds out the highest traffic
distribution spots in the mobile network.
With this measurement you can retrieve
information that indicates the places in
the network where more capacity is
needed.
BTS+TRX -level
(LAC-CI)
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application
67 High Speed Data Measurement
(optional)
Collects statistics about radio resources
used for fulfilling High Speed CircuitSwitched Data (HSCSD) requests.
Measures the functioning of the HSCSD
and 14.4 kbit/s Data Services software
products.
BTS-level
70 Channel Finder Measurement
(optional)
Registers statistics on cells which have
not been defined as adjacent cells, but
are among those six neighbouring cells
that the MS receives best. Provides
information on the signal strength
standard deviation, and class boundaries
of those cells.
BTS-level
71 MS Capability Indication Measurement
(incl. signalling charts) (optional)
Provides cell-specific information on the
capabilities of the MSs.
BTS-level
75 Defined Adjacent Cell Measurement
(optional)
Registers statistics on defined cells. This
measurement data is collected in cell
level.
BTS-level
77 FER Measurement (optional) Registers information both in uplink and
downlink directions on the TRXs.
BTS+TRX+codec -
level
78 Position Based Services
Measurement (optional)
Registers location requests grouped by
LCS QoS, location responses grouped
by accuracy, and error cases.
BTS-level (LAC-CI)
89 Reversed Hunting Measurement
(optional)
Registers information on the BSS, which
allocates the circuit needed directly
based on the radio interface resources.
A interface pool-level
92 Non-BCCH Layer Offset Measurement
(optional)
Registers link budget differences in the
serving cell.
BTS-level
93 UTRAN Handover Adjacent Cell
Measurement (incl. signalling charts)
(optional)
Registers statistics about the distribution
of inter-system handovers between
different cells.
BTS-level
94 UTRAN Neighbouring Cell Signal
Level Measurement (optional)
Registers information on signal levels of
WCDMA RAN cell in the neighbourhood
of a GSM serving cell.
BTS-level
99 Total FEP Measurement (optional) Collects statistics on the cumulated sum
of frame erasure probability (FEP) values
for a certain serving cell - neighbouringcell pair. Includes separate counters for
co-channel and adjacent channel
interference.
BTS-level
100 DFCA Measurement (optional) Collects statistics on the performance of
the DFCA application software. The data
is collected at cell level separately for
each connection type (FR/EFR, HR,
14.4, AMR FR, and AMR HR).
BTS-level +
connection type
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application
101 DFCA Assignment Measurement
(optional)
Collects statistics on the usage of DFCA
channels at cell level. The assignmentcounters are updated whenever the
corresponding MA list and MAIO are
used in a DFCA assignment.
BTS-level
102 BSC-BSC Measurement (optional) Collects statistics on the inter-BSC
communication related to the DFCA
application software. The counters of this
measurement record information on
average and peak delay between the
Radio Resource Managers in separate
BSCs.
Signalling point code
103 WPS Measurement (optional) Registers information on the performance
of traffic channel allocation and queuing
algorithms in granting priority access toWPS users.
BTS-level
104 IMSI Based Handover Measurement
(optional)
Collects statistics on the IMSI-based
handover attempts and failures for each
Authorised Network (ANE). There are
separate counters for GSM and UTRAN
networks.
BTS-level
106 CS DTM Measurement (incl. signalling
charts) (optional)
Collects statistics on Dual Transfer Mode
(DTM). Mainly collects MS-initiated DTM
call establishment information and CS
connection-related information of a DTM
call.
BTS-level
107 AMR RX Quality Measurement
(optional)
Collects statistics on uplink and downlink
RX quality for each AMR bitrate. The
information is collected from each
transceiver (TRX) separately.
BTS+TRX -level
108 DFCA SAIC Measurement(optional) Collects statistics on the performance of
the DFCA application software for
connections of SAIC-capable mobiles.
The data is collected at cell level
separately for each connection type (FR/
EFR, HR, 14.4, AMR FR, and AMR HR).
BTS-level +
connection type
109 Soft Channel Capacity Measurement
(optional)
Collects statistics on the availability of
traffic channels (TCH) in the BCSU
object level. The time congestion ofTCHs and the average and peak
numbers of busy TCHs are measured.
BCSU Logical
Address
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1.2 GPRS measurements (PSW)
GPRS measurements are packet-switched (PSW) call control measurements.
GPRS measurements measure call-related issues, such as congestion on a specificchannel or area. For circuit-switched (CSW) measurements, see 1.1 Call control
measurements (CSW).
No Measurement/optionality Purpose/function Level/role/
application
72 Packet Control Unit Measurement
(incl. signalling charts)
Provides cell-level information on the
functions in charge of the Packet
Control Unit (PCU). The counters
concentrate on the amount of packet-
traffic related transactions, data
throughput quality of provided service(failed/passed transactions), and the
availability of service (for example,
congestion, load of interfaces). The
need to get more capacity is indicated
well in advance.
BTS-level
73 RLC Blocks per TRX Measurement Provides TRX-specific information on
data throughput quality based on the
RLC/MAC blocks. The information can
be used for parameterisation of TRX
capacity.
BTS+TRX -level
74 Frame Relay Measurement Provides bearer channel and PVC
(Permanent Virtual Connection) specificinformation on the proper working of the
frame relay between the PCU and the
SGSN.
Bearer-level
76 Dynamic Abis Measurement (optional) Registers information on the
unsuccessful call establishment and
peak and average usage of dynamic
abis pool.
Abis pool-level
79 Coding Scheme Measurement
(optional)
Registers information about the amount
of data transferred to uplink and
downlink directions in the radio interface
using the different EGPRS modulation
and coding schemes (MCS) and GPRS
coding schemes CS-3 and CS-4.
BTS+coding scheme -
level
90 Quality of Service Measurement Registers information related to priority.
Provides information on, for example,
the number of RLC blocks and TBFs.
Segment+QoS priority
class -level
91 PBCCH Availability Measurement Registers availability of packet control
channels.
BTS-level
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application
95 GPRS Cell Reselection Measurement
(optional)
Registers information about the source
and target cell, the number of cellreselection attempts for various causes,
the number of successful NCCR
procedures, and the number of failures
for various failure reasons.
BTS-level + LAC-CI
96 GPRS RX Level and Quality
Measurement (optional)
Collects RX quality levels per each RX
class, and quality information per coding
scheme.
BTS + TRX + coding
scheme
97 Enhanced Quality of Service
Measurement
Records information about PFC
procedures, transferred data, and quality
control.
SEG + TC-THP-PFI+
ARP
98 Gb Over IP Measurement (optional) Registers the data related to Gb over IP.
IP provides an alternative to FrameRelay (FR) as a transport layer for the
Gb interface. The information is
collected from every Network Service
Virtual Connection (NS-VC) identified
with NS-VC id and NSE (Network
Service Entity) id.
NS-VCI + NSEI
105 PS DTM Measurement (incl. signalling
charts) (optional)
Collects statistics on Dual Transfer
Mode (DTM). Mainly collects network-
initiated DTM call establishment
information and PS connection-related
information of a DTM call.
BTS-level
1.3 Transmission measurements
Transmission measurements measure transmission and network quality.
The measurements collect data from counters in every working transmission
equipment and exchange terminal (ET). The transmission equipment increment
some of the counters all the time and some only when transmission errors happen.
They register the availability of the connection and the time during which there
are errored bits in the transferred data. They also register information on
functional disturbances, frame errors, and slips. This information is used indowntime statistics.
The information is collected from the transmission equipment, which is divided
into suitable groups. The division is made based on the equipment type and
generation. Table Transmission measurement and equipment types describes this
division.
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Table 2. Transmission measurement and equipment types
Measurement type Equipment type Equipment generation
DMR DMR TMS4
DN2 DN2 TMS4
TRU/BIE TRU, BIE TMS4
Not supported TRE TMS4
TRE TRE, DMR Nokia Q1
TRE_SEL TRE, DMR Nokia Q1
In practice, the Nokia Q1 generation equipment comprise the Nokia MetroSite
transmission equipment. Transmission Equipment Measurement (TRE) collects
information from all the equipment in the network, while Selective TransmissionEquipment Measurement (TRE_SEL) collects information from a selected part of
the network.
The connection between the BSC and the managed equipment is established
either through a BSC-BTS O&M link or a Q1 service channel. The possible
equipment types at a Base Transceiver Station (BTS) site are: Base Station
Interface Equipment (BIE), Transmission Unit (TRU), and Digital Microwave
Radio Link (DMR). Other transmission equipment types at the BTS site, such as
optical line equipment, are handled in the BSC with the common name
Transmission Equipment (TRE).
With the QWL command you can list the equipment type and generation of all the
equipment in the network. With the MML commands in the QU command group
you can select and interrogate the equipment for Selective Transmission
Equipment Measurement.
In general, a measurement collects data from all equipment defined in the
measurement type. Therefore, it is not possible to collect statistics from specific
equipment of a measurement type. With Selective Transmission Equipment
Measurement you can only define the part of the MetroSite transmission system
you want to measure.
No Measurement/optionality Purpose/function Level/role/
application
62 DMR Measurement Registers information on the signal
quality and frequency input level of radio
hopping, controlled by a DMR. The
measurement collects information from
the radio relay equipment.
PCM-level
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application
63 DN2 Measurement Registers information on the signal
quality of the PCM wire connected to aDN2. The measurement provides
information on transmission quality in
used PCM connection between a DN2
and the BSC or another transmission
equipment.
PCM-level
64 TRU/BIE Measurement Registers information on the signal
quality of the PCM wire connected to the
transmission unit (TRUA/TRUB) and/or
the base station interface equipment
(BIE). The measurement provides
information about transmission quality in
used PCM connection between a TRU/
BIE and the BSC or anothertransmission equipment.
PCM-level
65 ET BSC Measurement Provides information on the signal quality
of the PCM wire, which is connected to
the exchange terminal (ET) equipment
controlled by a BSC.
PCM-level
66 ET TCSM Measurement Provides information on the signal quality
of the PCM wire, which is connected to
the ET equipment controlled by a TCSM.
PCM-level
68 TRE Measurement Registers information on the signal
quality of the MetroSite transmission
system.
PCM-level
69 Selective TRE Measurement Registers information on the signal
quality and frequency input level (only
from radio relay equipment) of the
selected part of the MetroSite
transmission system.
PCM-level
1.4 Observations
Observations are useful in the BSC status monitoring as they give exact, almost
real time information on the network's performance: its traffic situation, handoversuccess, and handover problems. With the aid of the observations, you can
examine, for example, abnormal function or traffic pattern of calls on a specific
cell or channel, why several calls have ended prematurely without any obvious
reason, or why it is not possible to establish calls from some location area. This
information is useful in system maintenance and system testing.
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Basically, all observations have the same function: they generate records on
specific occasions. However, they have a different observation record format, and
they differ in the triggering conditions for generating an observation record. For
example, activity on the chosen channel creates channel observation records,
handovers occurring in the observing cell create handover records, and a clear
code observed during a call in the observed cell creates clear code observation
records.
The observation records are stored on disk files either when the observation
buffer is full or at user-defined intervals. The disk files are then transferred to
Nokia NetAct for post-processing.
You can activate the appropriate observation to a desired object and define a
schedule for that observation. When needed, you can also start the observations
immediately without a schedule.
No Observation/optionality Purpose/function
16 SDCCH Observation Provides information on activity on the SDCCH. An
observation report is generated every time the
SDCCH is released.
17 TCH Observation Provides information on the use of the TCH. An
observation report is generated every time the TCH
is released.
18 Handover Observations (including internal,
incoming and outgoing handover observations)
Provides information on handovers made in the
BSC, from some other BSC to the observing BSC,
and from the observing BSC to some other BSC. Anobservation report is generated every time such an
HO occurs.
21 Radio Measurement Report Provides information on handovers made during the
call as well as levels and qualities of the uplink and
downlink signals and the signal levels received by 6
adjacent cells.
22 Clear Code Observation Provides information on dropped calls or handover
problems. There are two possible ways to use this
observation: to observe all failure clear codes under
one BTS or one failure code under the whole BSC.
An observation report is generated every time a
specific clear code occurs, or a clear code occurs in
the observed BTS.
24 Dropped Call Observation (optional) Provides information on dropped calls. An
observation report is generated every time a call is
dropped.
25 TBF Observation for GPRS Trace Collects information on allocations, reallocations,
and releases of Temporary Block Flows (TBF) as
well as changes in the used coding scheme and MS
flow control.
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No Observation/optionality Purpose/function
27 GPRS Cell Reselection Report Trace report for GPRS trace that contains
information about NCCR triggering, NACC usage,
and possible failures.
28 GPRS RX Level and Quality Report Report type needed to record the serving and
neighbour cell measurements and quality data.
29 Drop Call Breakdown Observation (optional) Dissolves the updates of the counters 057044/
001202 DROP AFTER TCH ASSIGN and 002071
CLEAR REQUEST SENT BY BSC ON TCH to get
more accurate data on dropped calls.
30 Position Based Services Observation (optional) Collects detailed information on the positioning
calculation procedure in the BSC. The observation
report is collected for each location procedure of the
ME located in the target cell for the observation.
Related topics
. BSC Statistics Administration
. BSC Measurement Counters Displaying Program (FOXMEA)
. PCU2 Service Terminal Commands
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