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Confidently Deliver on yourPromised Data Services
Data Service Assurance
Program
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DSA Program 1.0
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Agenda
Typical RF Engineering Goals for DATANetworks
Data Network Engineering ManagementChallenges
Data Network ElementsWhat is DSA?
Real customer problems solved using DSA
Problem OverviewDSA Solution
DSA Roadmap
Next Steps
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Typical RF Engineering Goals
for DATA Networks
Bridge the GAPBetween RF &
IP Core Network
Spend lessThan 18 hours a day
In the office
Roll Out MUST HAVEData ServicesMMS, Video
Managing the rolloutof next-generation
networks
Benchmark QoS
Maximising networkcoverage, capacity
and QoS
Integrate DataWith minimal impact
On voice
Manage to budget
My ToDo List
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Data Network Engineering
Management Challenges
Find the right tools• Support all the technologies you
cover
• Identify & Locate problems
• Which sub-component of RF or IPCore?
• Fix Problem not SymptomEstablishing QoS
• Establish Benchmark
• Monitor Performance
Efficient Use of Resources
• Financial
• People
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Data Networks Connect
Network
Monitoring
Com3
B yN e w rk s
Fixed
Network
ISP
ASP
RF Ops RF Eng
Customer
Data DeviceVendor
Content
Many new hardware modules
An array of different services
Complex interdependenciesin the network ‘chain’
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Problem Areas
Core ProblemOr IP Problem
MY ProblemOR
Someone ELSES?
RF Problem Routing
Signaling Problem
Network CongestionProblem
Handset Problem
Switching Problem
Where is it all
Coming from?
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Optimization Activity
0
1
2
3
4
1 0 / 7 / 2 0 0 4
1 0 / 8 / 2 0 0 4
1 0 / 9 / 2 0 0 4
1 0 / 1 0 / 2 0 0 4
1 0 / 1 1 / 2 0 0 4
1 0 / 1 2 / 2 0 0 4
1 0 / 1 3 / 2 0 0 4
N u m b e r o f P r o b l e m s
Network Configuration RF Problem Vendor Equipment Problem Application Problem
Optimization Activity
0%
5%
10%
15%
20%
25%
30%
35%
40%
45%
50%
Network
Configuration
RF Problem Vendor
Equipment
Problem
Application
Problem
Network Problem Area Pareto
7 Day Exercise
Problems spreadover many areas.
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Data Networks Connect
Network
Monitoring
Com3
B yN e w rk s
Fixed
Network
ISP
ASP
RF Ops RF Eng
Customer
Data DeviceVendor
Content
How do you bring all the tools
together to isolate theproblem area?
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What is DSA?
In-depth end-to-end RF and IP analysis toolcombination, enabling faster and pro-activeData Service performance analysis andtroubleshooting.
Close Integration of RF drive test and signallingtools makes it easier to get to the root cause ofproblems than with discrete tools.
+ =
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Customer ‘A’ Data Problem
How do you locate theproblem?
PP
Web browsing succeeds
RF coverage seems good(voice OK)
Getting a network connectionseems fine
Multiple geographic reports of failureSending email fails!
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Customer ‘A’ – Data Drive with DSA
Validate Problem
Measure Service
Performance
RF (RLC)
Application
Isolate Cause:
HUB notswitch
Fix & Verify
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DSA Drive Application
Data networkmanagement andreporting with fault
finding drill-down
Application
TCP/UDP
IP
Transport
L3
RLC/MACRF
Uplink Downlink
Post-processing
analysis tool
TCP throughputTCP connection timeServer response timeData download time ….
IP protocol
analysis
WAMS Data Sequencer
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Customer ‘B’ – Service
Performance"... Frankly we
have nothing atthe moment to do
this other than
employing ‘warm
bodies’ to
manually carry
out tests ...
this is too
expensive and we
need to get a
simple automated
system...“
Verify access to
services
Monitor performance
Continuousmeasurement
Aggregated Reports
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Customer ‘B’ Solution
"...e-mail and sms
service tests
loaded onto DSA
platform and
initial results
have highlighted a
handset problem
between twodifferent models
.... immediate
payback of this
investment...“
Measurement
Accuracy
No manual errors
Measurement Density
300% improvement*
Improved Efficiency
100% improvement overall
Scalability
*Example For SMS test:16 Sec manual4 sec automated
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DSA Probe Application
Probe 2
Probe 3
Probe nData network managementand reporting
Access viaweb
Also availableas CSV file.FTP Results Via
LAN or RF
QoSManagerResults
Database
Data measurements:TCP throughputTCP connection timeServer response time
Data download time
WAMS Data Sequencer
Probe
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DSA Gives You Today…
Flexible & Customisable
•Scripting engine with AT & Command line Execution
•Open Architecture of Measurement Results
Integration of RF and IP Core Data
Allows probing of stacks for measurementinformation
•PC Based stacks
•MMS, WAP
Close to actual customerexperience
•DSA has REAL applications
•Real application protocol signalling
•Email, FTP, HTTP, SMS
UMTS
GPRS
cdma200EDGEMulti-Technology Support
W-LAN
1X-EVDO
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DSA Gives you in the future …
Dedicated insightfulreporting functionalitythrough post processingtools
Video Test
•H324 Video Test
End to End measurementcapability
•Integration with Protocol Analysis
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Top To Bottom Visibility
Service
Level
Management
Performance
Management
Troubleshooting
To be on top of the wireless data, top-to-bottom visibility isrequired...
How well is the service performing?
What is the user experience?
What service have we committed to?
And what can we deliver?
Are any network devices down?
What components are performing poorly?
How heavily utilized are the links?
What caused the degradation in service?
What traffic is on the network?Any errors?
What’s causing traffic bottlenecks?
Handset problem? RF problem? Switching/routing problem? Signaling problem?Network congestion problem? Service configuration problem? ISP Problem?
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PHASE 1
WAMS
NITRO
Actix
PHASE 2
WAMS
Nitro
Actix
Platform Q4 2005Q3Q2
2004 2004 2004 H1 2005
PHASE 3
WAMS
Nitro
Actix
SASE
CommittedUnder Development
Under Investigation
DSA Roadmap
Work is o n-going to ref ine the contents o f Phases 2 & 3.
•User Experience Testing
•Flexible Test Sequencing
•MMS, SMS, HTTP, FTP
•EMAIL, WAP, Voice Call
•Results to CSV orFirehunter
•Integration of WAMS / Nitro
•Sharing of GPS
• Actix for visualization
•Video Streaming
•Video Telephony
• Actix for Reporting
•Serial port Monitoring feed to SASE /
SART
•PPP IP Layer Protocol Test
•Script Analysis within SASE / SART
•Protocol Feed from Nitro to SASE /
SART
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Next Steps
….