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Mobile AssuranceQoS Analyzer Overview


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Mobile Assurance QoS Analyzer Overview

www.jdsu.com/nse

QoS Analyzer

Enabling proactive and real-time detection of mobile network-

and service-quality issues

The comprehensive QoS Analyzer (QoSA) monitors performance

and identifies problems across GSM, GPRS, UMTS, and LTE networksand services. The QoSA covers all aspects of mobile network and

service performance, letting users monitor delivered service quality

in real-time. The QoSA calculates, on an ongoing basis, a series of key

performance indicators (KPIs) relating to the network and carried

services. It continuously compares these metrics to preset thresholds

and generates alarms when thresholds are crossed. The QoSA can

also retrieve and analyze KPI data for historical trending of GSM/

GPRS/UMTS/LTE network and service performance: analysis which

is very useful to network operations, network planning, and SLA

management.

Benefits

Maximize Revenues

Detect network and service problems in real time, minimizing

outage times and their impact

Raise Satisfaction Levels

Proactive and real-time indication of customer-service

performance and quality issues

Lower OpEx and CapEx

Enable managing more complex networks and services within

existing OSS resources and OpEx constraints

Discover key trends with flexible historical reports for networkcapacity planning and performance management, optimizing

asset utilization, and minimizing capital spend

Features

Network-Wide Coverage

A wide range of KPIs help control delivered service quality,

covering network elements and signaling procedures across

multiple interfaces and protocols

Enables visibility of service performance across the entire GSM/

GPRS/UMTS/LTE network via a single, high-level view

Easy to Use

Get unmatched performance insight via an exceptionally-

flexible KPI service model and graphical interface

Set flexible alarm thresholds for selected KPIs including

baselining thresholds such as variable thresholds based on

typical KPI measured profiles

Allocate unique service definitions via a combination of APN,

IP address, port number, and URL/URI Simplify managing service performance with composite KPIs,

where a few procedural KPIs replace 10s or 100s of transaction

KPIs

Use color highlighting in service-model icons for indications of

network and service health based on the severity of threshold

violations

Generate reports for the last 24 hours or longer with granularity

down to 5 minutes

Workflow Improvements

From KPI alarm to root cause in three mouse clicks for fastermean-time-to-repair (MTTR)

Integrated troubleshooting drill-down with the Session Trace

application to deliver the fastest fault detection-to-resolution

time in the industry

Export collected performance data to third-party applications

Create a URL link of a performance view for copying or e-mailing

to colleagues, facilitating trouble-ticket handover


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Operation

The QoSA is just one of the applications within the JDSU Mobile

Assurance portfolio. JDSU Mobile Assurance solutions provide

passive-probe-based monitoring and troubleshooting for GSM,

GPRS, UMTS, and LTE networks and services. With applications

covering real-time monitoring, historical reporting, multi-dimensional

business-intelligence (BI) analysis, and detailed troubleshooting, the

JDSU Mobile Assurance portfolio delivers higher revenues, increased

customer satisfaction levels, and lower costs to mobile-service

providers around the world.

The QoSA lets users configure GSM/GPRS/UMTS/LTE measurements

for their specific network and service requirements and view results in

an easy-to-use display. Measurements and associated nodes (network

elements or services) appear in hierarchical tree structures so they

can be viewed and monitored easily. Appropriate icons represent the

service nodes, measurement templates, tests, and measurements.

Measurement results are viewable from multiple remote locations

using a client or a web GUI, giving a broad range of users access to

important information.

Service-model icons change color to provide up-to-date information

about the health of services, indicating whether threshold boundaries

have been crossed and the violation severity. These color changes

appear at the top level of the service model, letting users quickly

identify problems and drill down to isolate the root cause. Green

indicates that no threshold boundaries have been crossed while red

indicates at least one critical violation.

Health Reports and Active Histograms

QoSA measurement results appear in the form of graphs: health

reports and active histograms. Health reports are collections of related

GPRS/UMTS/LTE graphs combined into high-level status reports of

services and the network over a period of time. Health reports also

enable the graphical viewing of trends via the historical data included

in the report.

QoSA time-series histograms display performance-against-time for

selected KPIs and support drill-down into cause codes and impacted

IMSIs via the KPI Analyzer.


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Thresholds and Events

Alerts appear when a measurement result crosses any specified

threshold; then, one click takes the user from the alarm to the

measurement violation. An additional click brings up the KPI Analyzer

to drill down to cause analysis. Finally, if required, another click initiates

an in-context launch of the Session Trace application for detailed

troubleshooting analysis. Three simple steps are all that s needed to

take the user from a high-level alarm to a detailed problem diagnosis.

The QoSA provides flexible thresholding to ensure users are not

overwhelmed with false alerts, including static (fixed value) and

baseline thresholds. Baseline thresholds are where the QoSA builds

a historical record of network/service behavior and establishes a

threshold based on the measured baseline. For each defined threshold,

a user can configure a tr iggering conditionincreasing, decreasing,

or envelopeand can also set a severity level for the violation such as

minor, major, or critical.

Dynamically-updated alarm data includes:

date and time of the event

measurement name

measurement value that exceeded the boundary

value of the threshold boundary that was exceeded

sustained count value.

KPI Analyzer

The QoSA KPI Analyzer displays a time-series histogram showing the

cause codes or a profile of traffic depending on the measurement

type. This analysis helps determine error trends for the originating/

terminating points of traffic. Filtering may be applied to remove error

causes or nodes that are not relevant to the investigation.

The next level of detail includes IMSIs, nodes, and QCIs that contributed

to the threshold violation. By selecting a specific IMSI, node, or QCI,

a user can per form more detailed troubleshooting by launching the

Session Trace application directly from the same window.


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Configuration

Admin Console

The Admin Console is a user interface provided to system

administrators to create and manage QoSA service models and to

perform other administrative tasks.

Service Model

A service model provides a visualization of GSM, GPRS, UMTS, and LTE

network nodes and measurements in a hierarchical tree structure

to ease managing the network and services. A service model can be

created manually or automatically by selecting the required template

in the Admin Console. Measurements can be grouped under a single

grouping node such as User Plane Measurements or under several

grouping nodes such as Node Measurements.


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JDSU Composite KPIs

LTE introduces hundreds of new transactions that are used in tens of

procedures that control the users experience around accessibility,

mobility, integrity, and retainability. How do you effectively manage

your network, service, and customer experience when the set of KPI

measurements could run into the hundreds?

The answer is unique JDSU composite KPI technology. Composite

KPIs simplify event reporting by correlating and summarizing KPI

information across interfaces, transactions, and protocols. Composite

KPIs provide information on the actual customer experience rather

than on individual transaction performance.

For example, the LTE device attach procedure (shown in the diagram

below) involves 19 separate transactions before the user can access any

services. With JDSU Composite KPI technology, the following 4 attach

procedure KPIs can replace 76 traditional transaction-based KPIs.

Attach procedure volume

Attach procedure error rate (broken down by transaction and cause)

Attach procedure absence

Attach procedure setup time


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KPI Support Summary

Support for GSM/GPRS/MSS/UMTS and ISUP/INAP KPIs

Interface/

Grouping KPI Categories

Available

(C.05.00 on)

Gb Network access

BSSGP

GMM/SM

C.05.00

C.05.00

C.05.00

Gr, Gn Mobility management C.05.00

Gb, Gn Security management

Session management

C.05.00

C.05.00

General Network support services (for

example, RADIUS, DHCP)

LDAP

C.05.00

C.05.10

Iu RANAP C.05.00

IuPS Mobility management

Session management

C.05.00

C.05.00

IuCS Call controlMobility management

C.05.00C.05.00

Gn GTP C.05.00

B, C, D, E, etc. MAP

(Call handling; location management;

SMS; handover; PDP context;

subscriber management services;

supplementary services; location

service management; subscriber

information services; operation and

maintenance services; fault recovery

services).

C.05.00

A BSSMAP

DTAP

C.05.30

C.05.30

Various ISUP C.05.30

Various INAP C.05.30

Directional KPIs Network initiated detach

PDP context

C.05.00

C.05.00

Traffic Class KPIs Traffic class PDP contexts C.05.00

SMTP, POP3, HTTP,

WSP, RTSP service

KPIs

User plane (for example, data volume,

throughput)

C.05.10

MMS KPIs General (for example, connect,

redirect, suspend, resume)

C.05.10

MSS Mc GCP C.05.60

MSS Nc BICC

SIP-I

C.05.60

C.05.60

Support for LTE Control-Plane KPIs

Interface/

Grouping KPI Categories

Available

(C.05.60 on)

S1-MME EPS mobility management (EMM)

EPS session management (ESM)

C.05.60

C.05.60

S1-MME, S1-AP E-RAB management

Context management

Handover management

General (for example, EPS paging

and NAS transport KPIs)

C.05.60

C.05.60

C.05.60

C.05.60

S6a, S6d Location management

Subscriber data handling

Authentication

Fault recovery

Notification

C.05.60

C.05.60

C.05.60

C.05.60

C.05.60

S5, S8 (GTPv2) Tunnel management C.05.60

S4, S11 (GTPv2) Tunnel management C.05.60

S3, S10, S16

(GTPv2)

Mobility management C.05.60

SGs General (for example, non-EPS

services)

C.05.60

Gx IP CAN session C.05.60

MME on Gn LTE GPRS/UMTS interworking C.05.60

Support for LTE Composite KPIs

KPI Categories

Available

(C.05.60 on)Accessibility C.05.60

Mobility C.05.60

Retainability C.05.60

Support for LTE User-Plane KPIs

Interface KPI Categories

Available

(C.05.60 on)

S1-U, S5-U, S8-U,

S4-U

User plane (for example, data

volume and throughput)

C.05.60


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KPI Support Detail: GSM, GPRS, UMTS and ISUP, INAP

The QoSA for GSM/GPRS/UMTS data networks provides a

comprehensive set of measurements designed specifically to highlight

problems on GPRS and UMTS data networks such as Gn PDP context

activation and service activation failures. The solution provides

measurements on GSM/GPRS/UMTS voice and data network elements,

services, and data-service quality to control delivered QoS.

The following measurements are provided for each of the KPIs

supported by the QoSA:

Volume

Error volume

Success volume

Error rate

Success rate

Average response time

Average transaction duration

Absence

QoSA KPIs GSM, GPRS, UMTS + ISUP, INAP

KPI Definition of KPI Benefits

Gb Network Access KPIs

Attach Request Monitors the

performance of

the Attach Requestprocedures.

Highlights problems that

users are experiencing

when attaching to thenetwork.

Detach Request Monitors the

performance of the

Detach Request

procedures.

Indicates that users are

successfully detaching from

the network.

Routing Area

Update

Monitors the

performance of the

Routing Area Update

procedures.

Indicates that users are able

to roam successfully within

the network.

Gb BSSGP KPIs

RA Capabil ity The KPI monitors the

performance of RA

Capability procedures.

Ensures that the BSC

is being provided the

requested information (MS

Radio Access capability or

IMSI) from the SGSN.PS Paging The KPI monitors the

performance of PS Paging

procedures.

Indicates the number

re-attaches requests by the

network to users.

CS Paging The KPI monitors the

performance of CS Paging

procedures.

Ensures that subscribers are

informed when calls arrive

for them.

Radio Status The KPI monitors the

performance of Radio

Status procedures.

Indicates how often Radio

Status re-attaches requests

by the network to users and

potential problems with

cells.

LLC Discard The KPI monitors the

performance of LLC

Discard procedures.

Indicates a number of

buffered LLC-PDUs have

been deleted.

RA Capability

Update

The KPI monitors the

performance of RA

Capability Update

procedures.

Indicates that RA

capabilities are successfully

updated when requested

by the BSC.

Suspend The KPI monitors the

performance of Suspend

procedures.

Ensures that subscribers

can suspend their service

connect on request.

Resume The KPI monitors the

performance of Resume

procedures.

Ensures that subscribers

can resume their service

connect on request.

Flow Control MS The KPI monitors the

performance of Flow

Control procedures.

Indicates the number of

Flow Control procedures

sent from the BSC to the

SGSN.

Flush LL The KPI monitors the

performance of Flush LL

procedures.

Ensures that the BSCs are

kept up-to-date where

subscribers are located.

Gb GMM/SM KPIs

P-TMSI

Re-allocation


performance of Flush LL

procedures.

Ensures that the network

is successfully allocating/

updating P-TMSI and RAI

to users outside the RAU

procedure.


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QoSA KPIs GSM, GPRS, UMTS + ISUP, INAPcontinued


Gr, Gn Mobility KPIs

Cancel Location Monitors the performance

of the Cancel Locationprocedure.

Ensures that the HLR is

successfully informingthe SGSN that subscribers

have left its Location.

SGSN Context

Request

Monitors the performance

of the SGSN Context

Request procedure.

Ensures the New SGSN

informs the previous

SGSN that subscriber is

now hosted by itself.

Update GPRS

Location


of the Update GPRS

Location procedure.

Ensures that the HLR

is informed where a

subscriber is in the

network.

Update PDP

Context


of the Update PDP Context

procedure.

Ensures that GGSNs are

informed whenever a

subscriber roams to a new

SGSN.

Forward

Relocation


of the Forward Relocation

procedure.

Ensures Relocation

procedures are

successful.

Forward

Relocation

Complete


of the Forward Relocation

Complete procedure.

Ensures Relocation is

performing as designed.

Relocation

Cancel


performance of the

Relocation Cancel

procedures.

Ensures relocation cancel

requests are acted upon

within the core network.

Forward SRNS

Context


of the Forward SRNS

Context Complete

procedure.

Ensures successful hard

handovers.

Gb, Gn Security KPIs

Authentication

and Ciphering

Monitor the performance

of the Authentication and

Ciphering procedures.

These measurements

ensure that users are

validated by the network

and when ciphering is

used that the keys are

correctly being passed

around the network.

Authentication

Failure


of the Authentication

Failure procedures.

This measurement

monitors the notification

of failures to HLRs from

the SGSN.

Identification

Request


of the IdentificationRequest procedures.

Ensures that an SGSN

validates a P-TMSI withthe previous SGSN that

the subscriber was

attached to.

Identity Request Monitor the performance

of the Identity Request

procedures.

Ensures the network can

gather info (IMEI, IMSI)

from subscribers when

requested.

Send

Authentication

Info


of the Send Authentication

Info procedures.

Ensures that the SGSN

receives Authentication

from the HLR for a

subscriber.

Send

Authentication

InfoGPRS


of the Send Authentication

Info GPRS procedures.

Ensures that GGSNs can

obtain IP addresses of

the SGSN where a MS is

located.

Send Routing

Information forGPRS

Monitor performance of

the Send Routing Info forGPRS Authentication Info

GPRS procedures.

Ensures that GGSNs can

obtain IP addresses ofthe SGSN where a MS is

located.

Gb, Gn Session Management KPIs

Activate PDP

Context


of Activate PDP Context

procedures.

Ensures the user is able to

successfully create a GTP

tunnel to the internet/

intranet. Identifies

problems between the

requested APN and what

is allowed for a user.

Create PDP

Context


of Create PDP Context

procedures.

This measurement

ensures that the SGSN

and GGSN are successfully

generating a tunnelthrough to the Internet/

intranet.

Deactivate PDP

Context


of Deactivate PDP Context

procedures.

This measurement

ensures that a tunnel is

being correctly cleared on

request.

Delete PDP

Context


of Delete PDP Context

procedures.

This measurement

ensures that a tunnel

between the SGSN and

GGSN is being correctly

cleared on request.

Modify PDP

Context


of Modify PDP Context

procedures.

This measurement

ensures that requests

to modify a tunnel are

successfully completed.

SM Status

Update


of SM Status Update

messages.

This measurement

provides a count of the

number of SM Status

messages sent by the user

and the network.

Create Secondary

PDP Context


of secondary Create PDP

Context procedures.

This measurement

ensures that the SGSN

and GGSN are successfully

generating a tunnel

through to the Internet/

intranet.

PDU Notification

Request


performance of the PDU

Notification procedures.

Ensures Contexts can

be established where

none exist on receipt of a

T-PDU.

PDU Notification

Reject


performance of the

PDU Notification reject

procedures.

Monitors failures to

establish PDP Contexts

following a PDU

Notification request.


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Network Support Services

RADIUS

Accounting-Start


performance of RADIUSAccounting-Start

procedures.

Ensures that a query to

the RADIUS server to startaccounting is operational.

RADIUS

Accounting-Stop


performance of RADIUS

Accounting-Stop

procedures.


the RADIUS server to stop

accounting is operational.

RADIUS Interim-

Update

The KPI monitors

the performance of

RADIUS Interim-Update

procedures.

Ensures that a query to the

RADIUS server to update the

subscribers accounting is

operational.

RADIUS On The KPI monitors the


On procedures.


the RADIUS server to turn

accounting ON for a GGSN is

operational.

RADIUS Off The KPI monitors the


Off procedures.


the RADIUS server to turn

accounting OFF for a GGSN

is operational.

RADIUS Unknown The KPI monitors the


unknown procedures.


RADIUS server is responding

to messages unknown to

QoS Analyzer.

DHCP Discover The KPI monitors the

performance of DHCP

Discover procedures.

Ensures that all DHCP servers

are operational and available

to provide IP addresses.

If this fails, users will not

be able to access internet

services.

DHCP Request The KPI monitors the

performance of DHCP

Request procedures.


DHCP servers responds

with an IP Address when

requested.

DHCP Release The KPI monitors the

performance of DHCP

Release procedures.

Ensures that IP addresses

provided by a DHCP server is

returned once used.

DHCP Inform The KPI monitors the

performance of DHCP

Inform procedures.

Identifies problems with

status update messages

from the GGSN or RADIUS

server to the DHCP server.

DNS-APN Lookup The KPI monitors

the performance of

DNS-APN Lookupprocedures.


APN translation from alpha-

numeric to an IP address.

LDAP KPIs

LDAP Bind The KPI monitors the

performance of the

Bind LDAP procedures.

Ensures successful

authentication of the LDAP

sessions.

LDAP Unbind The KPI monitors

the performance of

the unbind LDAP

procedure.

Monitors the volume of

Unbind procedures(Note:

only volume and absence

measurements are

supported for this test).

LDAP Modify The KPI monitors

the performance

of the modify LDAP

procedures.

Ensures that directory

entries are successful

modified.

LDAP Add The KPI monitors the

performance of the AddLDAP procedures.


entries are successfullyadded.

LDAP Del The KPI monitors the

performance of the Del

LDAP procedures.


entries are successful

deleted.

LDAP Modify DNR The KPI monitors the

performance of the

Modify DNR LDAP

procedure.


entries are successful moved

or renamed.

LDAP Compare The KPI monitors

the performance of

the Compare LDAP

procedures.

Ensures that all Iu

connections and RABs are

successfully released on

request.

LDAP Extended The KPI monitors

the performance ofthe Extended LDAP

procedures.

Ensures that operations can

be successfully be defined.

LDAP Abandon The KPI monitors

the performance of

the Abandon LDAP

procedures.

Ensures that requests can be

aborted.

LDAP

Intermediate


performance of the

Intermediate LDAP

procedures.

Monitors the volume of

Intermediate procedures

(Note: only volume and

absence measurements are

supported for this test).

LDAP Search The KPI monitors

the performance

of the Search LDAPprocedures.

Ensures successful search

and/or retrieval of entries.

Iu RANAP KPIs

Iu Release

(Command

Complete)


performance of the

Iu Release Command

procedures.

Ensures that all Iu

connections and RABs are

successfully released on

request.

Iu Release

(Request)


performance of the

Iu Release request

procedures.


the UTRAN due to high Iu

release requests.

Security Mode

Control

The KPI monitors

the performance of

the Security mode

command procedures.

Ensures that the UTRAN

is successfully receiving

cipher and integrity mode

information.

Reset The KPI monitors the

performance of the

Reset procedures.

Ensures that the UTRAN or

Core network is successfully

re-initialized after network

failure.


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Iu RANAP KPIs continued

Reset

Resource


performance of the ResetResource procedures.

Ensures that part of the

UTRAN is successfullyre-initialized in the event of an

abnormal failure in the core

network or vice versa.

Location

Related Data


performance of the

Location Related data

procedures.

Ensures Core Network can

retrieve assistance data from

the RNC or request the RNC

to deliver assistance data to

the UE.

Information

Transfer


performance of the

Location Related data

procedures.

Ensures that info can be

transferred from the RNC to

the core network.

RAB

Assignment


performance of the RAB

Assignment Request

procedures.

Ensures that the RABs is

established and/or modified

and/or released as requested.

RAB

Modification


performance of the

RAB Modify request

procedures.

Identifies how often RAB

Modification requests are

received.

RAB Release The KPI monitors the

performance of the

RAB Release request

procedures.

Identifies the number of RAB

release requests from the

UTRAN.

Relocation

Preparation


performance of the

Relocation required

procedures.

Ensures the success of

handovers between SRNS as

users relocate.

Relocation

Resource

Allocation


performance of the

Relocation request

procedures.

Ensures that resources are

available on target RNCs

and ensures the success of

handovers between SRNS as

users relocate.

Relocation

Detect


performance of the

Relocation Detect

procedures.

Measures the number of SRNS

relocations seen by an RNC.

Relocation

Cancel


performance of the

Relocation cancel

procedures.

Ensures that the cancellation

of SRNS handovers is

successfully achieved.

RelocationComplete

The KPI monitors theperformance of the

Relocation Complete

procedures.

Measures the number of SRNSrelocations completed by an

RNC.

SRNS Context The KPI monitors the

performance of the

SRNS Context request

procedures.

Ensures that context is being

successfully transferred

to the target SRNS during

handovers.

SRNS Data

Forwarding


performance of the

SRNS Data Forwarding

Command procedures.

Ensures that the Core Network

is correctly updating the

UTRAN.

SRNS Context

Forwarding


performance of the SRNS

Context Forwarding

procedures.

Ensures that context is being

correctly passed around

the network to allow for

relocation of users .

CN Invoke

Trace


performance of the CNInvoke Trace procedures.

Measures the number of CN

Invoke Trace procedures fromthe core network to RNC to

produce a trace record.

CN Deactivate

Trace


performance of the

CN Deactivate Trace

procedures.

Measures the number of CN

Deactivate Trace procedures

invoked by the core network.

Location

Reporting

Control


performance of the

Location Reporting

Control procedures.

Measures the number of

Location Reporting Control

procedures invoked by the

core network to request

information on the location

of a UE.

Location

Report

The KPI monitors

the performance ofthe Location Report

procedures.


Location Report proceduressent by the RNC to the core

network to provide the

location if an UE.

Paging The KPI monitors

the performance of

the Paging request

procedures.


Paging requests between the

CN and UTRAN.

Initial UE

Message


performance of the Initial

UE Message procedures.

Measures number of

connections initiated

between the RNC and core

network.

Data Volume

Report


performance of the

Data Volume Report

procedures.

Ensures Core network has

accurate knowledge of

unsuccessfully transmitted

DL data volume for specific

RABs.

Direct Transfer The KPI monitors

the performance of

the Direct Transfer

procedures.

Measures number of Direct

transfer messages between

Core Network and RNC.

Common ID The KPI monitors the

performance of the

Common ID procedures.

Measures the number of NAS

UE Identity updates sent by

the core network.

Overload

Control


performance of the

Overload procedures.

Monitors the number of

Overload messages sent

and identifies network

bottlenecks.

ErrorIndication

The KPI monitors theperformance of the Error

Indication procedures.

Monitors the number of ErrorIndication messages sent and

identifies potential signaling

problems with received

messages.

UE Specific

Information


performance of the UE

Specific Information



UE Specific Info Indication

messages sent in the

network.


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IuPS Mobility Management KPIs

P-TMSI

Reallocation


performance of Flush LLprocedures.

Ensures that the network

is successfully allocating/updating P-TMSI and RAI

to users outside the RAU

procedure.

Service

Request


performance of Service

Request procedures on

the IuPS interface.

Ensures that the requested

services (e.g., SMS) are

successfully established.

Authentication

and Ciphering



Request procedures.

Ensures that the UE is able

to authenticate and use

services.

IuPS Session Management KPIs

Activate

Secondary PDP

Context



Request procedures.

Ensures the user can create a

secondary GTP tunnel to the

internet.

Activate PDP

Context


performance of Activate

PDP Context procedures.

Ensures the user can create

GTP tunnel to the internet.

Identifies problems between

requested APN and what

user is allowed.

Deactivate PDP

Context

The KPI monitors

the performance of

Deactivate PDP Context

procedures.

This measurement ensures

that a tunnel is being

correctly cleared on request.

Modify PDP

Context


performance of Modify

PDP Context procedures.

This measurement ensures

that requests to modify

a tunnel are successfully

completed.

IuCS Call Control KPIs

Call Setup The KPI monitors the

performance of the Call

Setup procedures.

Ensures calls are successfully

being established between

the MS and the network.

Call Release The measurement

monitors the

performance of the Call

Release procedure.

Ensures calls cleared

between MS and network

and network resources freed

up.

Facility The KPI monitors the

performance of the

Facility procedures.


supplementary service being

requested.

Modification The KPI monitors the

performance of the

Modify procedures.

Ensures that bearer

capabilities are modified

successfully.Hold The KPI monitors the

performance of the Hold

procedures.

Ensures that calls are

successfully put on hold when

requested to by the MS.

Retrieve The KPI monitors the

performance of the

Retrieve procedures.

Ensures that calls are

successfully retrieved when

requested to by the MS.

Start DTMF The KPI monitors the

performance of the Start

DTMF procedures.

Ensures requests by MS to

network to reconvert digits

to DTMF tone are successful.

Stop DTMF The KPI monitors the

performance of the Stop

DTMF procedures.

Ensures requests by the MS

to the network to stop DTMF

tone are successful.

Congestion

Control


performance of the

Congestion Controlprocedures.

Measures the number

of Congestion Control

messages used to controlflow of User Info.

User

Information


performance of the User

Information procedures.


User-to-User info being sent

between remote users.

Status The KPI monitors

the performance of

the Status Enquiry

procedures.

Ensures reports requested by

network to MS during a call

are responded successfully.

IuCS Mobility KPIs

Location

Updating


performance of the

Locating Update Request

procedures.

Ensures the MS successfully

updates its location towards

the network.

Authentication The KPI monitors the

performance of the

Authentication Request

procedures.

Ensures the MS is successfully

authenticated with the

network.

Identity

Request

The KPI monitors

the performance of

the Identity Request

procedures.

Ensures requested mobile

identities are successfully

sent back to the network.

TMSI

Reallocation


performance of the TMSI

Reallocation procedures.

Ensures temporary identities

over the radio interface are

successfully reallocated

when requested to do so by

the network.

CM Ser vice The KPI monitors the

performance of the

CM Service request

procedures.

Ensures requested services

from the MS are successfully

activated by the network.

CM

Re-Establish


performance of the CM

Re-establishment request

procedures.

Ensures requested

services from the MS are

re-established by the

network.

MM

Information


performance of the MM

Information procedures.

Measures the volume of MM

Information messages.

MM Status The KPI monitors the

performance of the MM

Status procedures.

Measures the volume of MM

Status messages.

MM Null The KPI monitors theperformance of the MM

Status procedures.

Measures the volume of MMNull messages.

IMSI Detach The KPI monitors the

performance of the

IMSI Detach Indication

procedures.

Measures the volume of IMSI

detaches made by the MS to

the network.


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IuCS Mobility KPIs continued

Gn GTP KPIs

Echo Monitor the performanceof Echo request

procedures.

This measurement ensuresconnections between the

network elements are in

place.

Error Indication The KPI monitors the

performance of the Error



Error Indication messages

sent and identifies issues

where network elements

are out of alignment.

Failure Report The KPI monitors the

performance of the Failure

Report procedures.


made aware of problems

with an MS.

Note MSGPRS

Present


performance of the

Note MS GPRS Presentprocedures.

Ensures the GGSN are being

updated and that an MS is

reachable by GPRS.

RAN

Information

Relay


performance of the

RAN Information Relay

procedures.

Ensures RAN information

is passed from the SGSN to

the GGSN.

Support

Extension

Headers

Notification


performance of the

Support Extension Headers

Notification procedures.

Ensures that SGSNs are

updated with the list

of Extension Headers

supported by the identified

IP address

Version Not

Supported


performance of the

Version Not Supported

procedures.

Ensures that the GTP entity

is aware of the supported

GTP versions of other

entities.

MAP Call Handling KPIs

Send Routing

Information

The KPI monitors

performance of the Send

Routing Information

procedure.

Ensures that GMSCs are

communicating properly

with HLR to route calls

correctly.

Provide

Roaming

Number

The KPI monitors

performance of the

Provide Roaming Number

procedure.

Ensures that HLR is

receiving roaming numbers

from the MSCs when

required.

Resume Call

Handling

The KPI monitors

performance of the

Resume Call Handling

procedure.

Ensures that GMSC is

responding to request

from VMSC to resume call

handling.

Prepare Group

Call

The KPI monitors

performance of the Prepare

Group Call procedure.

Ensures that relay MSC is

responding correctly for a

group call set-up.

Process Group

Call Signaling

The KPI monitors

performance of the Process

Group Call Signaling

procedure.


providing uplink status

updates to anchor MSC.

Forward Group

Call Signaling

The KPI monitors

performance of the

Forward Group Call

Signaling procedure.

Ensures that anchor MSC

is informing relay MSC of

group call notifications.

Send Group Call

End Signal

The KPI monitors


Group Call End Signal

procedure.


being informed to release

group call resources as

required.

Provide (Shared

InterworkingFunction Server)

SIWFS Number

The KPI monitors

performance of the ProvideSIWFS Number procedure.

Ensures that Interworking

Unit (IWU) resourcesare being allocated on

request.

SIWFS Signaling

Modify

The KPI monitors

performance of the

SIWFS Signaling Modify

procedure.

Ensures that assigned

resources are modified

when required.

Set Reporting

State

The KPI monitors

performance of the

Set Reporting State

procedure.

Ensures that the MSC / VLR

is starting / stopping report

generation as requested.

Status Report The KPI monitors

performance of the Status

Report procedure.

Ensures that the MSC / VLR

is forwarding reports to

the HLR.

Remote UserFree

The KPI monitorsperformance of the

Remote User Free

procedure.

Ensures that HLR isupdating MSC on status of

the B subscriber, to allow

recall.

(Intermediate

Service

Termination) IST

Alert

The KPI monitors

performance of the IST

Alert procedure.

Ensures that MSC is

informing HLR when the IST

timers expire.

IST Command The KPI monitors

performance of the IST

Command procedure.

Ensures VMSC / GMSC are

responding to HLRs request

to terminate a call.

MAP Location Management KPIs

Update

Location

The KPI monitors

performance of the Update

Location procedure.

Ensures that MSC / VLR

are updating HLRs with

subscribers correct

location.

Purge MS The KPI monitors

performance of the Purge

MS procedure.

Ensures that HLR is

responding to request from

the MSC / SGSN.

MAP SMS KPIs

Send Routing

Info For SM

The KPI monitors


Routing Info For SM

procedure.

Ensures that GMSC can

route short messages to the

correct MSC.

MO Forward

Short Message

The KPI monitors

performance of the MO

Forward Short Message

procedure.

Ensures that MO SMS

messages are forwarded

from MSC / SGSN correctly.

MT Forward

Short Message

The KPI monitors

performance of the MT

Forward Short Message

procedure.

Ensures that MT SMS

messages are forwarded to

MSC / SGSN correctly.

Report SM

Delivery Status

The KPI monitors

performance of the

Report SM Delivery Status

procedure.

Ensures that HLR is being

updated with status of SMS

delivery when required.

Ready For SM The KPI monitors

performance of the Ready

for SM procedure.

Ensures that HLR is notified

when it is possible to send

SMS to a subscriber.


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MAP SMS KPIs continued

Alert Service

Centre

The KPI monitors

performance of the AlertService Centre procedure.

Ensures that IWMSC

is notified when it ispossible to send SMS to

subscriber.

Inform Service

Centre

The KPI monitors

performance of the Inform

Service Centre procedure.

Ensures that HLR is

updating service centre

with status of MWI.

MAP Handover KPIs

Prepare Handover The KPI monitors

performance of the

Prepare Handover

procedure.

Ensures that MSCs are

responding correctly to

handover requests.

Send End Signal The KPI monitors


End Signal procedure.

Ensures that MSC-B is

allocating, and MSC-A

clearing, resources at

handovers.

Forward Access

Signaling

The KPI monitors

performance of the

Forward Access Signaling

procedure.

Ensures that MSC-A

is forwarding info to

MSC-B.

Prepare Subsequent

Handover

The KPI monitors

performance of the

Prepare Subsequent

Handover procedure.

Ensures that

subsequent handovers

are successfully set up.

MAP Network Requested PDP Context Activation Services KPIs

Send Routing Info

For GPRS

The KPI monitors


Routing Info For GPRS

procedure.


providing the requested

routing info.

Failure Report The KPI monitors

performance of the Failure

Report procedure.

Ensures that the HLR

is being informed of

PDP Context Activation

failures.

Note MS Present For

GPRS

The KPI monitors

performance of the Note

MS Present For GPRS

procedure.

Ensures that GGSN is

updated when a MS

becomes available to

receive GPRS.

MAP Subscriber Management Services KPIs

Insert Subscriber

Data

The KPI monitors

performance of the

Insert Subscriber Data

procedure.

Ensures that MSC and

SGSN are updating

users profile when

requested.

Delete SubscriberData

The KPI monitorsperformance of the

Delete Subscriber Data

procedure.

Ensures that MSC andSGSN are updating

users profile when

requested.

MAP Supplementary Services (SS) KPIs

Register SS The KPI monitors

performance of the

Register SS procedure.

Ensures HLR responds

correctly to the MSC/

VLR data update

associated with SS.

Erase SS The KPI monitors

performance of the Erase

SS procedure.

Ensures HLR responds

correctly to the MSC/

VLR data update

associated with SS.

Activate SS The KPI monitors

performance of the

Activate SS procedure.

Ensures that HLR

is responding to

subscribers request to

access a SS.

Deactivate SS The KPI monitors

performance of theDeactivate SS procedure.

Ensures HLR is

responding to requestto deactivate a SS.

Interrogate SS The KPI monitors

performance of the

Interrogate SS procedure.

Ensures that HLR is

responding to requests

for info on the SS.

Register Password The KPI monitors

performance of the

Register Password

procedure.

Ensures that the new

password is successfully

updated at the HLR.

Get Password The KPI monitors

performance of the Get

Password procedure.

Ensures that the MSC is

responding to the HLRs

request for a password.

Process

Unstructured SS

The KPI monitors

performance of the

Process Unstructured SSprocedure.

Ensures that HLR

responds to the request

to allow unstructured SSoperation.

Unstructured SS

Request

The KPI monitors

performance of the

Unstructured SS Request

procedure.

Ensures that MSC is

responding to the HLR

request for unstructured

SS info.

Unstructured SS

Notify

The KPI monitors

performance of the

Unstructured SS Notify

procedure.

Ensures that MSC is

responding to the HLR

request for unstructured

SS info.

SS Invocation

Notify

The KPI monitors

performance of the

SS Invocation Notify

procedure.

Ensures that gsmSCF is

responding to the MSC

request for specific SSs.

Register CC (Call

Completion) Entry

The KPI monitors

performance of the

Register CC Entry

procedure.

Ensures that HLR

responds to MSC/VLR

request to register for a

CC SS.

Erase CC (Call

Completion) Entry

The KPI monitors

performance of the Erase

CC Entry procedure.

Ensures that HLR

responds to MSC/VLR

request to erase CC SS

info.

MAP Location Service Management (LCS) KPIs

Send Routing Info

for LCS

The KPI monitors


Routing Info for LCS

procedure.

Ensures that HLR is

providing routing info

to Gateway Mobile

Location Centre

(GMLC).

Provide Subscriber

Location

The KPI monitors

performance of the

Provide Subscriber

Location procedure.

Ensures that GMLC

is requesting routing

info from visited MSC/

SGSN.

Subscriber Location

Report

The KPI monitors

performance of the

Subscriber Location

Report procedure.

Ensures that visited

MSC/SGSN is providing

routing info to GMLC.


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MAP Subscriber Information Services KPIs

Any Time

Interrogation

The KPI monitors

performance of the Any TimeInterrogation procedure.

Ensures that gsmSCF

is being provided infoon subscriber state by

HLR / GMLC.

Provide Subscriber

Info

The KPI monitors

performance of the Provide

Subscriber Info procedure.

Ensures that VLR is

responding to HLRs

request for subscriber

state and location.

Any Time

Subscription

Interrogation

The KPI monitors

performance of the Any Time

Subscription Interrogation

procedure.

Ensures that HLR

is responding to

gsmSCF request for

subscription info.

Any Time

Modification

The KPI monitors

performance of the Any Time

Modification procedure.

Ensures that HLR is


that subscriber data is

modified.

Note Subscriber

Data Modified

The KPI monitors

performance of the Note

Subscriber Data Modified

procedure.

Ensures that HLR is


that subscriber data is

modified.

MAP Operation and Maintenance Services KPIs

Activate Trace

Mode

The KPI monitors

performance of the Activate

Trace Mode procedure.

Ensures that VLR /

SGSN respond to the

HLR activate trace

request.

De-activate Trace

Mode

The KPI monitors

performance of the

De-activate Trace Mode

procedure.

Ensures that VLR /

SGSN respond to the

HLR de-activate trace

request.

MAP Fault Recovery Services KPIs

Reset The KPI monitors

performance of the Reset

procedure.

Measures the number

of Resets sent by an

HLR after an outage.

Forward Check SS

Indication

The KPI monitors

performance of the Forward

Check SS Indication

procedure.

Measures the number

HLR informs to MS of

SS parameters being

altered.

Restore Data The KPI monitors

performance of the Restore

Data procedure.

Ensures that HLR

is responding to

MSC / VLR update to

Local Mobile Station

Identity.

A Interface BSSMAP KPIs

Handover The KPI monitors

performance of the

Handover procedure.

Measures the success

of the handover

request message.

Ciphering The KPI monitors

performance of theCiphering procedure.

Measures success

of the cipheringprocedure.

Paging The KPI monitors

performance of the Paging

procedure.

Measures success

of the paging

procedure.

Assignment The KPI monitors

performance of the

Assignment procedure.

Measures success

of the assignment

procedure.

Clear Request The KPI monitors

performance of the Clear

Request procedure.

Measures success

of the clear request

procedure.

Clear Command The KPI monitors

performance of the Clear

Command procedure.

Measures success of

the clear command

procedure.

A Interface - DTAP KPIs

MO Average Call

Length

Time from Connect to

Release.

Measures mobile-

originated call

performance.

MO Call

Attempts

Number of calls. Measures mobile-

originated call

performance.

MO Call

Completion

Calls with normal releases

(success).

Call with abnormal releases

(error).

Measures mobile-

originated call

performance.

MO Answer To

Seizure

Address complete with

answer (success).

Address complete with noanswer (error).

Measures mobile-

originated call

performance.

MO Drop Call

Rate

Answered calls with

abnormal releases.

Measures mobile-

originated call

performance.

MO Post Dial

Delay

Time from DTAP Setup to

DTAP alerting.

(Equivalent to IAM ACM in

ISUP).

Measures mobile-

originated call

performance.

MO Termination

To Seizure

Call attempts (Setup) with

ringing (Alerting).

Measures mobile-

originated call

performance.

MT Average Call

Length

Time from Connect to

Release.

Measures mobile

terminated callperformance.

MT Call Attempts Number of calls. Measures mobile

terminated call

performance.

MT Call

Completion

Calls with normal releases

(success).

Call with abnormal releases

(error).

Measures mobile

terminated call

performance.


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A Interface - DTAP KPIs continued

MT Answer To

Seizure

Address complete with

answer (success).Address complete with no

answer (error).

Measures mobile

terminated callperformance.

MT Drop Call Rate Answered calls with

abnormal releases.

Measures mobile

terminated call

performance.

MT Post Dial Delay Time from DTAP Setup to

DTAP alerting.

(Equivalent to IAM ACM

in ISUP).

Measures mobile

terminated call

performance.

MT Termination To

Seizure

Call attempts (Setup) with

ringing (Alerting).

Measures mobile-

terminated call

performance.

SMS MO The KPI monitors

mobile originated SMSperformance.


of the SMS CP-DATAin relation to SMS

CP-ERROR messages.

SMS MT The KPI monitors

mobile terminated SMS

performance.


of the SMS CP-DATA

in relation to SMS

CP-ERROR messages.

MM (Mobility

Management)

Location Update

The KPI monitors

performance of the

MM Location Update

procedure.


of the location update

request.

Authentication The KPI monitors

performance of the

Authentication procedure.


of the authentication

procedure.

CM Service Request The KPI monitors

performance of the CM

Service Request procedure.


of the CM service

request procedure.

ISDN User Part (ISUP) Measurements

The ISUP defines the protocol and procedures used to set up, manage,

and release trunk circuits carrying voice and data calls over the public

switched telephone network (PSTN). ISUP is used for both ISDN and

non-ISDN calls. The QoSA measurement set monitors the performance

of calls originating and terminating at specified ISUP nodes.

For volume-based ISUP KPIs, the following measurements are provided:

Volume

Error volume

Success volume

Error rate

Success rate

Absence


KPI Definition of KPI

ISUP KPIs

Call Attempts Measures the volume and absence of Call Attempts per

measurement interval.

Call Completion Measures calls for which call attempts were made that is,

though the IAM was sent to the destination switch, the

call was not successfully completed.

Termination To

Seizure

Measures calls for which call attempts were made that is,

though the IAM was received at the destination switch,

the ACM message was not sent to the originating switch

that is, there was no ring or a busy tone.

Answer ToSeizure

Measures ACM messages sent to the originatingswitch for which no ANM message was received at the

originating switch.

Answer To Bid Measures call attempts made that is, IAM was sent to the

destination switch with no ANM message received at the

originating switch.

Drop Call Measures answered calls, where the called party answers

call, and call status is OK or FAIL.

Post Dial Delay Measures the time interval between punching in the

last digit of a telephone number and receiving a ring

or a busy signal. The time interval from Initial Address

Message (IAM) to Address Complete Message (ACM).

Post Gateway

Answer Delay

Measures the time interval between an Initial Address

Message (IAM) and Answer Message (ANM).Call Answer

Time

Measures the time interval between an Address

Complete Message (ACM) and Answer Message (ANM).

Call Release

Time

Measures the time interval between a Release Message

(REL) and Release Message Complete (RLC).

Call Duration Measures the time interval between the Initial Address

Message (IAM) and Release Message (REL).

Network

Efficiency

Release

Measures the ratio that eliminates user behavior as a

factor in an error calculation and represents pure network

performance. It is calculated as:( (Answers + User errors)/

Total call attempts (seizures) ) * 100


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Intelligent Network Application Part (INAP) Measurements

The INAP is a signaling protocol used in the intelligent network (IN)

architecture. It provides the logic for controlling telecommunication

services migrated from traditional switching points to computer-based

service independent platforms. The QoSA measurement set provides

measures to cover the following areas:

the performance of INAP operations originating or terminating at a

specified node for a selected service key

the performance of nodes receiving or transmitting a particular INAP

operation for a selected service key ISDN.



INAP KPIs

Monitors the INAP operations received or transmitted from a

MSC / MSC-S / SSP to a SCP for a selected service.

Monitors the time required to invoke an INAP operation on a

MSC / MSC-S / SSP / SCP for a selected service.

Identifies and extracts the detailed information about all the

INAP operations transmitted or received by a MSC / MSC-S /

SSP / SCP for a selected service key.

Identifies and extracts the detailed information about all the

MSC / MSC-S / SSP / SCP nodes transmitting or receiving an

INAP operation for a selected service key.

Identifies and extracts the detailed information about the

error causes (if any) and the called party numbers along with

corresponding service key and point code.

Directional Measurements

These measurements identify the entity that initiated a PDP context

procedure: UE, SGSN, or GGSN.

Three procedures are analysed to provide deactivation directional

measurements:

Detach

Deactivate PDP context

Delete PDP context

Two procedures are analysed to provide modification directional

measurements:

Update PDP context

Modify PDP context


KPI Definition of KPI Resolution

Network-Initiated Detach Ratio

An increase in the number of Detach Procedures from a particular SGSN

would suggest a problem in the network and potentially customersatisfaction problems.

Total Detach

Volume

Total number of Detach TDRs where

the source or destination address is

the SGSN

SGSN

Network Initiated

Detach Volume

Total number of Detach TDRs where

the source address of the REQUEST is

the SGSN

SGSN

Network Initiated

Detach Ratio

Network-initiated Detach Volume/

Total Volume

SGSN

Subscriber-Initiated PDP Context Deactivation Ratio

Determine number of subscriber-initiated deactivations that occur in the

network (per NE) and the subsequent impact on other NEs.

Total DeactivatePDP Context

Volume

Total number of Deactivate PDPContext TDRs where source or

destination address is SGSN

SGSN

Subscriber Initiated

Deactivate PDP

Context Volume

Total number of Deactivate PDP

Context TDRs where destination

address of REQUEST is SGSN

SGSN


Deactivate PDP

Context Ratio

Subscriber-initiated Deactivate PDP

Context Volume/Total Deactivate PDP

Context Volume

SGSN

Total Delete PDP

Context Volume

Total number of Delete PDP Context

TDRs where source or destination

address is SGSN

SGSN


Delete PDP Context

Volume


TDRs where the source address of the

REQUEST is the SGSN

SGSN


Delete PDP Context

Ratio

Subscriber-initiated Delete PDP

Context Volume /Total Delete PDP

Context Volume

SGSN

Total Delete PDP

Context Volume



address is GGSN

GGSN


Delete PDP Context

Volume


TDRs where destination address of

REQUEST is the GGSN

GGSN


Delete PDP Context

Ratio

Subscriber-initiated Delete PDP

Context Volume/Total Delete PDP

Context Volume

GGSN


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SGSN-Initiated PDP Context Deactivation Ratio

Provide indication of the number of SGSN-initiated deactivations and the ratio of

SGSN-initiated in comparison to the total number of deactivations. Normal SGSN

deactivations shall occur but a spike in the number may indicate that the network

has reached capacity and must teardown connections to meet demand.

Total Deactivate

PDP Context

Volume


Context TDRs where source or

destination address is SGSN

SGSN

Network Initiated

Deactivate PDP

Context Volume


Context TDRs where source address of

REQUEST is the SGSN

SGSN

Network Initiated

Deactivate PDP

Context Error

Volume


Context TDRs where source address of

REQUEST is the SGSN and RESPONSE

indicates procedure has failed

SGSN

Network Initiated

Deactivate PDPContext Ratio

Network-initiated Deactivate PDP

Context Volume/Total Deactivate PDPContext Volume

SGSN

Network Initiated

Deactivate PDP

Context Failure

Ratio

Network-initiated Deactivate PDP

Context Error Volume/Network-

initiated Deactivate PDP Context

Volume

SGSN

GGSN-Initiated PDP Context Deletion Failure Ratio

Spike in number of GGSN deletions/deactivations may indicate network at

capacity and tearing down connections to meet demand.

Total Delete PDP

Context Volume


TDRs where the source or destination

address is GGSN

GGSN

GGSN Initiated

Delete PDP ContextVolume


TDRs where the source address of theREQUEST is the GGSN

GGSN

GGSN Initiated

Delete PDP Context

Error Volume


TDRs where source address of

REQUEST is the GGSN and RESPONSE


GGSN

GGSN Initiated

Delete PDP Context

Ratio

GGSN-initiated Delete PDP Context

Volume/Total Delete PDP Context

Volume

GGSN

GGSN Initiated

Delete PDP Context

Failure Ratio

GGSN-initiated Delete PDP Context

Error Volume/GGSN-initiated Delete

PDP Context Volume

GGSN

UE-Initiated PDP Context Modification Procedure Failure Ratio

Provide an indication of the number of modifications requested from the UE /

subscriber and the associated failure ratio.

Total Modify PDP

Context Volume

Total Number of Modify PDP Context


address is SGSN

SGSN

UE Initiated

Modify PDP

Context Volume

Total number of Modify PDP Context


REQUEST is SGSN

SGSN

UE Initiated

Modify PDP

Context Error

Volume



REQUEST is SGSN and RESPONSE


SGSN

UE Initiated

Modify PDP

Context Ratio

UE-initiated Modify PDP Context

Volume/Total Modify PDP Context

Volume

SGSN

UE Initiated

Modify PDP

Context Failure

Ratio

UE-initiated Modify PDP Context Error

Volume /UE-initiated Modify PDP

Context Volume

SGSN

SGSN-Initiated PDP Context Modification Procedure Failure Ratio

Provide an indication of the number of modifications requested from the

SGSN and the associated failure ratio.

Total Modify PDP

Context Volume

Total Number of Modify PDP Context


address is SGSN

SGSN

SGSN Initiated

Modify PDP

Context Volume


TDRs where source address of REQUEST

is the SGSN

SGSN

SGSN Initiated

Modify PDP

Context Error

Volume


TDRs where source address of REQUEST is

SGSN and RESPONSE indicates procedure

has failed

SGSN

SGSN Initiated

Modify PDP

Context Ratio

SGSN-initiated Modify PDP Context

Volume/Total Modify PDP Context

Volume

SGSN

SGSN Initiated

Modify PDP

Context Failure

Ratio

SGSN-initiated Modify PDP Context

Error Volume/SGSN Initiated Modify PDP

Context Volume

SGSN

Total Update PDP

Context Volume

Total number of Update PDP Context


address is SGSN

SGSN

SGSN Initiated

Update PDP

Context Volume



is the SGSN

SGSN

SGSN Initiated

Update PDP

Context Error

Volume


TDRs where source address of REQUEST is

SGSN and RESPONSE indicates procedure

has failed

SGSN

SGSN Initiated

Update PDP

Context Ratio

SGSN-initiated Update PDP Context

Volume/Total Update PDP Context

Volume

SGSN

SGSN Initiated

Update PDP

Context Failure

Ratio

SGSN-initiated Update PDP Context Error

Volume/SGSN-initiated Update PDP

Context Volume

SGSN


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GGSN-Initiated PDP Context Modification Failure Ratio

Updates from the GGSN generally indicate the QoS parameter for a particular

context is to be altered. Important to understand the frequency and

occurrence of this and whether the procedure is successful or not.

Total Update PDP

Context Volume


TDRs where the source or destination

address is the GGSN

GGSN

GGSN Initiated

Update PDP

Context Volume


TDRs where the source address of the

REQUEST is the GGSN

GGSN

GGSN Initiated

Update PDP

Context Error

Volume



is GGSN and RESPONSE indicates

procedure has failed

GGSN

GGSN Initiated

Update PDP

Context Ratio

GGSN-initiated Update PDP Context

Volume /Total Update PDP Context

Volume

GGSN

GPRS PDP Context Cut-Off Ratio

GPRS PDP

Context Cut-Off

Ratio

(Total number of SGSN-initiated PDP

Context Deactivations)/(Success Volume

of Activate PDP Context Requests)

Identify

NEs at max

number

of active

contexts

Traffic Class Measurements

All of the KPIs described in this section identify when the network is

having a problem providing the requested traffic class.



Traffic Class PDP Context Ratio

Measure the ratio of PDP contexts for each traffic class (Conversational,

Streaming, Interactive, Background) compared to the total number of PDP

contexts.

For each SGSN, measurements shall be made against the Activate PDP

Context and the Create PDP Context.

For each GGSN, measurements shall be made against the Create PDP

Context.

For each APN, measurements shall be made against the Activate PDP


Traffic Class shall be determined from the QoS Profile.

Total Create PDP ContextVolume

Total number of Create PDPContext TDRs

SGSN, GGSN,APN

Total Activate PDP Context

Volume

Total number of Activate PDP

Context TDRs

SGSN, APN

Total Create PDP Context

Volume per Traffic Class

Total number of Create PDP

Context TDRs per Traffic Class

SGSN, GGSN,

APN

Ratio of Total Create PDP

Context to Create PDP

Context for each Traffic

Class


Volume per Traffic Class /Total

Create PDP Context Volume

SGSN, GGSN,

APN





SGSN, APN

Ratio of Total Activate PDP

Context to Activate PDPContext for each Traffic

Class


Volume per Traffic Class /TotalActivate PDP Context Volume

SGSN, APN

Percentage of Admission Control Activity toward Traffic Class PDP Context

Activation Requests

Measure the percentage of PDP contexts for each traffic class (Conversational,

Streaming, Interactive, Background) rejected at the SGSN.


Context.

Traffic Class shall be determined from the negotiated QoS Profile.





SGSN

Volume rejected due to

Admission Control for

Activate PDP Contexts foreach Traffic Class



where Requested is rejected dueto Admission Control

SGSN

Percentage rejected due

to Admission Control for

Activate PDP Contexts for

each Traffic Class

(Volume rejected due to

Admission Control for Activate

PDP Contexts for each Traffic

Class)/(Total Activate PDP

Context Volume per Traffic Class)

x 100

SGSN


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Percentage of PDP Context Creation Rejections for Traffic Class due to

Admission Control

Measure the % of PDP contexts for each traffic class (Conversational,

Streaming, Interactive, Background) rejected at the GGSN.


Context.

Traffic Class shall be determined from the negotiated QoS Profile.





per GGSN

GGSN

Volume rejected due to

Admission Control for

Create PDP Contexts for

each Traffic Class



where Requested is rejected due

to Admission Control

GGSN

Percentage rejected due

to Admission Control for


each Traffic Class

(Volume rejected due to

Admission Control for Create


Class)/(Total Create PDP Context

Volume per Traffic Class) x 100

GGSN

Percentage of Downgraded Traffic Class PDP Contexts

Measure the percentage of PDP contexts for each traffic class (Conversational,

Streaming, Interactive, Background) downgraded.




Context.

For each APN, measurements shall be made against the Activate PDP


Traffic Class shall be determined from the QoS Profile.

Whether a downgrade has occurred shall be determined by comparing

the QoS Profile in the REQUEST with the QoS Profile returned in the

RESPONSE.

If requested QoS (REQUEST) is different from the negotiated QoS

(RESPONSE) this shall be treated as a downgrade.





SGSN, GGSN,

APN

Volume of Downgraded


each Traffic Class



where the Requested QoS does

not equal the Negotiated QoS

SGSN, GGSN,

APN

% Downgraded Create

PDP Contexts for each

Traffic Class

(Volume of downgraded Create


Class)/(Total Create PDP ContextVolume per Traffic Class) x 100

SGSN, GGSN,

APN





SGSN, RNC,

APN


Activate PDP Contexts for

each Traffic Class



where the Requested QoS does

not equal the Negotiated QoS

SGSN, RNC,

APN

% Downgraded Activate


Traffic Class

(Volume of downgraded

Activate PDP Contexts for each

Traffic Class)/(Total Activate PDP


x 100

SGSN, RNC,

APN

Total Update PDP Context


Total number of Update PDP


SGSN, GGSN,

APN


Update PDP Contexts for

each Traffic Class

Total number of Update PDP


where Requested QoS not equal

to Negotiated QoS

SGSN, GGSN,

APN

% Downgraded Update


Traffic Class

(Volume of downgraded

Update PDP Contexts for each

Traffic Class)/(Total Update PDP


x 100

SGSN, GGSN,

APN


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Service Measurements

All of the KPIs described in this section identify service issues. The

following measurements are provided for upload/download packets,

upload/download octets, and service activation:

Volume

Error volume

Success volume

Error rate

Success rate

Absence

Average response time

Average transaction duration



Service KPIs (SMTP, POP3, HTTP, WSP, RTSP)

Upload

Packets

This KPI monitors the

performance of the

upload packets.

These measurements indicate

data volume, retransmitted or

packets delivered out of order,

and jitter.

Download

Packets


performance of the

download packets.




and jitter.

Upload

Octets


performance of theupload octets.


data volume, retransmitted orpackets delivered out of order,

and jitter.

Download

Octets


performance of the

download octets.




and jitter.

Service

Activation

This KPI measures the

service activations.




and service response time.

Throughput Measures the uplink and

downlink throughput.

Identifies problems with the

uplink and downlink data

throughput for a service.

Variance Measures the Variancefor a service.

This measurement details thenetworks ability to provide

a user with the requested

bandwidth.

MMS KPIs

Connect Monitors per formance

of Connect WSP

method.

Ensures that MMS-related

WSP sessions are able to be

established.

Connect

Reply

Monitors performance

of Connect Reply WSPmethod.


WSP sessions are able to beestablished.

Redirect Monitors performance

of Redirect WSP

method.



redirected.

Disconnect Monitors performance

of Disconnect WSP

method.



disconnected.

Reply Monitors performance

of Reply WSP method.

Ensures that users are able to

receive MMS.

Suspend Monitors per formance

of Suspend WSP

method.

Ensures that MMS related


suspended.

Resume Monitors performanceof Resume WSP

method.

Ensures that MMS relatedWSP sessions are able to be

resumed.

Get Monitors the

performance of the Get

WSP method.


receive MMS.

Post Monitors performance

of Post WSP method.


send MMS.

Data

Fragment

Monitors the

performance of the Data

Fragment WSP method.

Ensures that large data transfers

can be completed successfully.

Push Monitors performance

of Push WSP method.

Ensures the success of WSP Push

method.

ConfirmedPush

Monitors performanceof Confirmed Push WSP

method.

Ensures the success of WSPConfirmed Push method.

1. For the four supported protocols, QoS Analyzer will provide details of the

application layer errors, and will only report GTP, TCP, or UDP errors for the

unknown protocols.

2. The measurements above apply to configured services. The Service

Discovery Interface (SDI) provides the operator with a powerful

configuration tool that allows individual services carried in the User Data

plane to be built into the operators service model. The SDI has the following

configurable fields: APN: IP Address (ASP server): Port # (on server): URL/URI


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Mobile Soft Switch (MSS) Measurements

The following KPIs confirm the correct operation of an MSS network

architecture. Enabling voice services to be carr ied over an IP-based core

network, the MSS architecture introduces new NEs (mobile soft switch

server - MSC-S or media gateway controller - MGC, media gateway

- MG), new interfaces (Mc, Nc) and new protocols (gateway control

protocol - GCP, bearer independent call control - BICC, session initiation

protocol with encapsulated ISUP - SIP-I).

For volume-based MSS KPIs, the following measurements are provided:

Volume

Error volume

Success volume

Error rate

Success rate

Absence

Average response time (GCP KPIs only)

Average transaction Time (GCP KPIs only)



Mc Interface, GCP KPIs

GCP addresses the relationship between the Media Gateway, which converts

circuit-switched voice to packet-based traffic, and the Media Gateway

Controller or soft-switch, which dictates the service logic of that traffic. GCP

instructs an MG to connect streams coming from outside a packet or celldata network onto a packet or cell stream such as the Real-Time Transport

Protocol (RTP). There are two basic components in GCP: terminations and

contexts. Terminations represent streams entering or leaving the MG (for

example, analog telephone lines, RTP streams, or MP3 streams). Terminations

may be placed into contexts, which are defined as when two or more

termination streams are mixed and connected together. Contexts are created

and released by the MG under command of the MGC. A context is created

by adding the first termination, and it is released by subtracting the last

termination. GCP uses a series of commands to manipulate terminations,

contexts, events, and signals.

ADD Monitors performance of the

ADD command which adds a

termination to a context.

MODIFY Monitors the performance of the

MODIFY command which is used tomodify the properties, events, and

signals of a termination.

SUBTRACT Monitors performance of the

SUBTRACT command which

disconnects a termination from its

context and returns statistics on the

terminations participation in the

context.

MOVE Monitors performance of the MOVE

command which atomically moves

a termination to another context.

NOTIFY Monitors performance of the

NOTIFY command which allows

the MG to inform the MGC of the

occurrence of events in the MG.

SERVICECHANGE

- SERVICECHANGEBYGRACEFUL

- SERVICECHANGEBYFORCED

- SERVICECHANGEBYRESTART

- SERVICECHANGEBYD

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