Cqim User Guide Cemod 2 Sp5 Rel

8/13/2019 Cqim User Guide Cemod 2 Sp5 Rel

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Customer Quality Insight

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Customer Quality Insight Monitor Data

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The information in this document is subject to change without notice and describes only the

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Copyright 2013 Nokia Solutions and Networks. All rights reserved.

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Table of ContentsThis document has 26 pages.

1 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

2 Getting started . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

2.1 Logging into CEM portal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

2.2 Navigating through Customer Quality Insight Monitor Data . . . . . . . . . 9

3 Viewing Customer Quality Insight Monitor Data reports . . . . . . . . . . . 12

3.1 Map . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

3.2 Table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

3.3 Failure Graphs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

3.3.1 Failure Graph Analysis. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

3.4 Failure types and cause code analysis . . . . . . . . . . . . . . . . . . . . . . . . . 16

4 Customer Quality Insight Monitor Data KPI details. . . . . . . . . . . . . . . 18

4.1 KPI Descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

5 Glossary and Abbreviations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

6 Appendix: Cause Code Description. . . . . . . . . . . . . . . . . . . . . . . . . . . . 20


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List of FiguresFigure 1 CEM portal Login . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Figure 2 Customer Quality Insight Monitor Data Dashboard . . . . . . . . . . . . . . . . 9

Figure 3 Navigation Panel. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Figure 4 Customer Quality Insight Monitor Data Main Page . . . . . . . . . . . . . . . 10

Figure 5 Map functionality report. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Figure 6 Top X Problematic EPC NEs*** . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Figure 7 Failure Graphs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Figure 8 Failure Graph analysis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

Figure 9 Failure types and cause code analysis report. . . . . . . . . . . . . . . . . . . . . 17


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List of TablesTable 1 Opacity details . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Table 2 KPI details for Customer Quality Insight Monitor Data . . . . . . . . . . . . 18

Table 3 Glossary and Abbreviations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

Table 4 Cause Code Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20


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Customer Quality Insight Monitor Data Overview

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1 OverviewWith advent of LTE, demand for data is growing at an exponential rate and so is the com-

plexity of network and elements handling them. It is very important for service providers

to monitor the performance of the Network and the Elements to provide sustained and

better end user experience. Customer Quality Insight Monitor Data is the tool in this

front, where monitoring of EPC elements l ike MME, PGW, and SGW is done in near real

time.

Customer Quality Insight Monitor Data uses data from Nokia Siemens Networks

Serve@Once Traffica for Flexi-NS (MME) and Flexi-NG (PGW and SGW) respectively

through Real-time Broker to Serve@Once Intelligence (SAI).

Accessibility, Retainability, and Mobility are the umbrella Key Quality Indicator (KQIs)

and are having the following KPIs under them.

Accessibility

Attach

Default Bearer Activation

Dedicated Bearer Activation

Retainability

Detach

Bearer Modification

Bearer Deactivation

Mobility

Tracking Area Update (TAU)

For more information on different KPIs, see chapter KPI Descriptions.


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Getting started

2 Getting startedPre-requisites:

CEM portal can be accessed only on Mozilla Firefox (3.8 and later versions).

2.1 Logging into CEM portal

Follow the steps below to log into the CEM portal:

Access the following URLhttps://hostname:port

The CEM portal login page is displayed.

Figure 1 CEM portal Login

2 Enter your login credentials in the login page.3 Click Log In.

The CEM Portal dashboard appears.

4 Click on Customer Quality Insight Monitor Data dashboard widget.


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Figure 2 Customer Quality Insight Monitor Data Dashboard

The dashboard illustrates the following:

Y-axis(vertical axis): There are two Y-axis. Failure %and # of Subscribers

scale is shown on the left and right Y-axis respectively.

X-axis(horizontal axis): Shows the time scale. By default, last 3 hourstime

scale is shown. The time interval on X-axis is 15 minutes.

Region: By default, All regionis selected.

Legend: Color legend on the right hand side explains the color codes of various

attributes in the graph. For example, orange is the color code for Retainability.

g The dashboard widget is refreshed every 15 minutes.

There is a drop down in the Navigation panel that contains all the registered Content

packs list. Customer Quality Insight Monitor Data appears upon clicking the

Customer Quality Insight Monitor Data item.

Figure 3 Navigation Panel

2.2 Navigating through Customer Quality Insight Monitor

Data

Accessibility, Retainability and Mobility umbrella KQIs can be monitored either using the

table or the map view simultaneously. Both views will provide key customer information

like Failure Rates for each KQI, Impacted Subscribers per KQI, and Overall Impact for

EPC elements MME, SGWor PGW.


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Getting started

The overall layout of Customer Quality Insight Monitor Data contains main listing of

problematic network elements in main table and detailed table of selected network

element.

Figure 4 Customer Quality Insight Monitor Data Main Page

1. Floating bar: Left side of the floating bar tab shows the name of the content pack.

2. Auto refresh: Automatically refreshes data in tables and map. This is selected by

default and user can disable if not required.


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3. Region: The data in the graphs and the tables correspond to the particular region

selected and by default, All Regions is selected.

4. Details panel: Displays map and tables, which drills down to graphs and tables.

5. Close details/ Show details tab: On the right side, shows the drill down failure graphsand tables.

6. Navigation path: Shows currently selected EPC Network Element.

7. Home: Clicking on Home button redirects to CQI dashboard.


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Customer Quality Insight Monitor Data Viewing Customer Quality Insight Monitor Data re-ports

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Figure 5 Map functionality report

1. Tooltip on mouse over shows Failure rate and Impacted Subscriber Percentage for

different KQIs Accessibility, Retainability and Mobility along with Overall Impact.

2. Search functionality has been implemented which allows to search the specific

network element on map.

3. Zoom functionality provides the zoom-in and zoom-out functions on the map. The

same functionality can be realized using mouse.

4. The opacity of the Network Elements is based on the number of impacted subscrib-

ers.The opacity details are mentioned in the table below.

gThe Imapacted Subscribers is calculated in number.

3.2 Table

The main table shows the network elements ranked based on Impacted Subscribers.

Severity Percentage

Minor 20%

Table 1 Opacity details


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Viewing Customer Quality Insight Monitor Data re-ports

Figure 6 Top X Problematic EPC NEs***

g ***Here X represents the number of selected Network Elements from the dropdown.

1. Under Network Element column, the first name shows Source id and second name

shows Network Element.

2. Search box at the end of the table can be used to view the details of a specificNetwork Element. The results in different pages can be viewed by clicking on the

first, previous, next, and last buttons.

3. The number of items viewable on a page can also be set using the dropdown at the

end.

4. The details table on the right pane will list the specific KPI percentages under the

columns Impacted Subscribers in percentage, Failures in percentage, and Number

of attempts for a selected Network Element.

g By default, top 10 problematic elements details will be shown. However, it may changedepending upon the selection of Network Elements.

gThe Impacted subscribers is calculated in number.

3.3 Failure Graphs

On selecting Show Details, the drill down graphs will be shown as below.

Time filter has been introduced for failure graphs. The Time filter has the following

entries:

Last 1 Hr. (15 mins)



Last 12 Hr. (1 Hr)


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Last 24 Hr. (1 Hr)

The values in the graphs will be shown for the time interval selected from the time filter.

For example, If Last 1 Hr. (15 mins) is chosen, the graphs will show the values for last1

Hr. for every 15 mins.

Figure 7 Failure Graphs


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Viewing Customer Quality Insight Monitor Data re-ports

The above set of Failure graphs shows the KPIs under each KQI as below:

1. Accessibility

Attach

Default Bearer Activation Dedicated Bearer Activation

2. Retainability

Detach

Bearer Modification

Bearer Deactivation

3. Mobility

Tracking Area Update (TAU)

g Place holders under Mobility KQI is reserved for future use.

3.3.1 Failure Graph Analysis

The below graph set shows the Accessibility related KPIs Attach, Default Bearer Activa-

tion, and Dedicated Bearer Activation. Each graph shows the Impacted Subscribers

Percentage, Failure rate Percentage, and Attempts in top row.

Figure 8 Failure Graph analysis

1. The left y-axis depicts the values for Impacted Subscribers and Failure rate percent-

ages, while the x-axis shows the time range as per the filter selected. The right y-

axis shows number of Attempts.

The bars on each graph shows the number of attempts, the purple line shows both

impacted subscribers in percentage and failure rate in percentage if both have same

set of values.On mouseover, tool tip for the selected bar or line graph is shown at a specific time

and is highlighted.

g By Default, the Last 1 Hr. (15 mins) time filter and All Regions region filter will beselected.

3.4 Failure types and cause code analysis

The following figure shows Failure Events Types and Failure Cause Code Analysis for

selected KPI. Upon selecting any bar on a chart, displays the same set of data for the

entire chart.


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Figure 9 Failure types and cause code analysis report

1. Further drill down from the Failure Graphs, shows different events for a KPI along

with Number of Failures and Impacted Subscribers in the table. By default the

columns are sorted by Impacted Subscribers.

2. The Cause Codes table on the right pane is available on selecting a specific event

in the failure types table. The cause code table will list reasons for failure (cause

descriptions) for an event along with Number of Impacted Subscribers.

Both the tables can be closed by clicking on the close button on the top right corner

of the pane containing them. We have the drilldown graphs, tables for all KPIs and

corresponding cause codes tables for KQIs Accessibility, Retainability, and Mobility.

To see details of newly selected element or a new time interval or region, Close Details

/Show Details tab should be used to see the updated information in the failure graphs

and corresponding cause code tables.


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Customer Quality Insight Monitor Data KPI details

4 Customer Quality Insight Monitor Data KPI

details

4.1 KPI Descriptions

The following table lists the KPIs and its description for Customer Quality Insight

Monitor Data.

Source KPI Description

Data Attach Failures Number of Attach Failures.

Data Attach Attempts Number of Attach Attempts.

Data Detach Failures Number of Detach Failures.

Data Detach Attempts Number of Detach Attempts.

Data Dedicated Activation

Failure

Number of Dedicated activation Fail-

ures.

Data Dedicated Activation

Attempts

Number of Dedicated activation

Attempts.

Data Default Activation Failure Number of Default activation Failures.

Data Default Activation

Attempts

Number of Default activation Attempts.

Data Deactivation Failure Number of Deactivation Failures.

Data Deactivation Attempts Number of Deactivation Attempts.

Data Bearer Modification

Failures

Number of Bearer Modification Fail-

ures.

Data Bearer Modification

Attempts

Number of Bearer Modification

Attempts.

Data TAU Failures Number of TAU Failures.

Data TAU Attempts Number of TAU Attempts.

Table 2 KPI details for Customer Quality Insight Monitor Data


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Customer Quality Insight Monitor Data Glossary and Abbreviations

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5 Glossary and AbbreviationsThis section is meant to help those acquainting themselves with the Customer Quality

Insight Monitor User Guide.

Abbreviation Description

SAI Serve atOnce Intelligence

CEM Customer Experience Management

CQIM Customer Quality Insight Monitor

EPC Evolved Packet Core

KQI Key Quality Indicator

KPI Key Performance Indicator

LTE Long Term Evolution

TAU Tracking Area Update

FNS Flexi Network Server

FNG Flexi Network Gateway

MME Mobility Management Entity

PGW Packet Gateway

SGW Service Gateway

Table 3 Glossary and Abbreviations


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Appendix: Cause Code Description

6 Appendix: Cause Code DescriptionThe following table lists the Cause codes and its description details for Traffica CQI

Monitor for Data.

Cause Code Cause Code Description Event Type

0 Success EPC Session Management or

EPC Mobility Management

0 Request IMSI EPC GTP

1 Request IMEI / Paging Cause EPC GTP

2 IMSI unknown in HSS EPC Mobility Management

2 Request IMSI and IMEI EPC GTP

3 Illegal UE EPC Mobility Management

3 No identity needed/ Complete

Detach

EPC GTP

4 MS Refuses EPC GTP

5 MS is not GPRS Responding EPC GTP

6 Illegal ME EPC Mobility Management

7 EPS service not allowed EPC Mobility Management

8 Operator determined barring EPC Session Management

8 EPS service and Non-EPS

services not allowed


9 UE identity cannot be derived by

the network


10 Implicitly detached EPC Mobility Management

11 PLMN not allowed EPC Mobility Management

12 Tracking area not allowed EPC Mobility Management

13 Roaming not allowed in this

Tracking area


14 EPS services not allowed in this

PLMN


15 No suitable cells in tracking area EPC Mobility Management

16 MSC temporarily not reachable EPC Mobility Management

16 Request accepted EPC GTP

17 Network failure EPC Mobility Management

17 Request accepted partially EPC GTP

18 CS domain not available EPC Mobility Management

18 New PDN type due to network

preference

EPC GTP

Table 4 Cause Code Description


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19 ESM failure EPC Mobility Management

19 New PDN type due to single

address bearer only

EPC GTP

20 MAC failure EPC Mobility Management

21 Synchronization failure EPC Mobility Management

22 Congestion EPC Mobility Management

23 UE security capabilities

mismatch


24 Security mode rejected (unspeci-

fied)


25 Not authorized for this CSG EPC Mobility Management

26 Insufficient resources EPC Session Management

26 Non-EPS authentication unac-

ceptable


27 APN not included or could not be

resolved/ Missing or unknown

APN

EPC Session Management

28 PDN type could not be recog-

nized/ Unknown PDN type


29 User authentication failed EPC Session Management

30 Resource rejected by the Serving

GW or PDN GW


31 Request rejected for Unspecified

reasons


32 Service is not supported by the

PLMN


33 Service has no subscription EPC Session Management

34 Temporary outage of one or

more functions/service option

temporarily out of order


35 PTI is already in use by another

active UE


36 UE or network initiated release of

EPS bearer resources


37 New EPS QoS cannot be

accepted


38 Service rejected due to an error

situation in the network / Network

failure



Table 4 Cause Code Description (Cont.)


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38 CS fallback call establishment

not allowed


39 CS domain temporarily not avail-

able


40 No EPS bearer context activated EPC Mobility Management

41 Semantic error in the TFT EPC Session Management

42 Syntactical error in the TFT EPC Session Management

43 Invalid EPS bearer identity EPC Session Management

44 One or more semantic errors in

packet filter(s) of the TFT


45 One or more syntactical errors in

packet filter(s) of the TFT


46 EPS bearer context without TFT

already activated


47 PTI mismatch EPC Session Management

49 PDN disconnection procedure is

not allowed


50 Only PDN type IPv4 is allowed EPC Session Management

51 Only PDN type IPv6 is allowed EPC Session Management

52 Only single IP version bearers

are allowed


53 ESM information not received EPC Session Management

54 PDN does not exist EPC Session Management

55 Multiple PDN connections for a

given APN are not allowed


56 Network has already initiated the

activation service/ Collision with

network initiated request


59 Unsupported QCI EPC Session Management

64 Context non-existent or not found EPC GTP

65 Invalid message format EPC GTP

66 version not supported by next

peer

EPC GTP

67 Invalid length EPC GTP

68 Service not supported EPC GTP

69 Mandatory IE incorrect EPC GTP

70 Mandatory IE missing EPC GTP




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71 Reserved (Optional IE incorrect) EPC GTP

72 System failure EPC GTP

73 No resources available EPC GTP

74 Semantic error in the TFT opera-

tion

EPC GTP

75 Syntactic error in the TFT opera-

tion

EPC GTP

76 Semantic errors in the packet fil-

ter(s)

EPC GTP

77 Syntactic errors in the packet fil-

ter(s)

EPC GTP

78 Missing or unknown APN EPC GTP

79 Unexpected repeated IE EPC GTP

80 GRE key not found EPC GTP

81 Invalid PTI EPC Session Management

81 Reallocation failure EPC GTP

82 Denied in RAT EPC GTP

83 Preferred PDN type not sup-

ported

EPC GTP

84 All dynamic addresses areoccupied

EPC GTP

85 UE context without TFT already

activated

EPC GTP

86 Protocol type not supported EPC GTP

87 UE not responding EPC GTP

88 UE refuses EPC GTP

89 Service denied EPC GTP

90 Unable to page UE EPC GTP

91 No memory available EPC GTP

92 User authentication failed EPC GTP

93 APN access denied -no subscrip-

tion

EPC GTP

94 Request rejected EPC GTP

95 Message with semantically incor-

rect contents


95 Semantically incorrect message EPC Mobility Management

95 P-TMSI signature mismatch EPC GTP




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96 Message with non-semantical

mandatory IE error


96 Invalid mandatory information EPC Mobility Management

96 IMSI not known EPC GTP

97 Message type is not defined EPC Session Management

97 Message type non-existent or not

implemented


97 Semantic error in the TAD opera-

tion

EPC GTP

98 Incompatible with the protocol

state


98 Message type not compatible

with the protocol state


98 Syntactic error in the TAD opera-

tion

EPC GTP

99 Element identifier is not defined

or not implemented


99 Information element non-existent

or not implemented


99 Reserved message value

received

EPC GTP

100 Message with conditional IE

errors


100 Conditional IE error EPC Mobility Management

100 Remote peer not responding EPC GTP

101 Incompatible message EPC Session Management

101 Message not Compatible with the

protocol state


101 Collision with network initiated

request

EPC GTP

102 Unable to page UE due to sus-

pension

EPC GTP

103 Conditional IE missing EPC GTP

104 APN restriction type incompatible

with currently active PDN con-

nection

EPC GTP




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105 Invalid overall length of the trig-

gered response message and

the piggybacked originalmessage

EPC GTP

106 Data forwarding not supported EPC GTP

111 Protocol error event EPC Session Management

111 Protocol error (unspecified) EPC Mobility Management

112 EPS bearer context(s) have an

APN restriction value


128 Request accepted EPC GTP

129 New PDN type due to network

preference

EPC GTP

130 New PDN type due to single

access bearer only

EPC GTP

192 Non-existent EPC GTP

193 Invalid message format EPC GTP

194 IMSI not known EPC GTP

195 MS is GPRS Detached EPC GTP

196 MS is not GPRS responding EPC GTP

197 MS Refuses EPC GTP

198 Version not supported EPC GTP

199 No resources available EPC GTP

200 Service not supported EPC GTP

201 Mandatory IE incorrect EPC GTP

202 Mandatory IE missing EPC GTP

203 Optional IE incorrect EPC GTP

204 System failure EPC GTP

205 Roaming restriction EPC GTP

206 P-TMSI Signature mismatch EPC GTP

207 GPRS connection suspended EPC GTP

208 Authentication failure EPC GTP

209 User authentication failed EPC GTP

210 Context not found EPC GTP

211 All dynamics PDP addresses are

occupied

EPC GTP

212 No memory is available EPC GTP




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Customer Quality Insight Monitor DataAppendix: Cause Code Description

213 Relocation failure EPC GTP

214 Unknown mandatory extension

header

EPC GTP

215 Semantic error in the TFT opera-

tion

EPC GTP

216 Syntactic error in the TFT opera-

tion

EPC GTP

217 Semantic errors in the packet fil-

ter(s)

EPC GTP

218 Syntactic errors in the packet fil-

ter(s)

EPC GTP

219 Missing or unknown APN EPC GTP

220 Unknown PDP address or PDP

type

EPC GTP

221 PDP context without TFT already

activated

EPC GTP

222 APN access denied- no subscrip-

tion

EPC GTP

223 APN Restriction type incompati-

bility with current active PDP

contexts

EPC GTP

224 MS MBMS Capabilities Insuffi-

cient

EPC GTP

225 Invalid correlation-ID EPC GTP

226 MBMS Bearer Context Super-

seded

EPC GTP

227 Bearer Control Mode violation EPC GTP

228 Collision with network initiated

request

EPC GTP



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