Validating VoLTE

[primig]

Validating VoLTE
A Guide to Successful Deployments
February 2014
2nd Edition

TABLE OF CONTENTS

CHAPTER 1
VoLTE Market Drivers and Benefits
Protecting Voice Revenues
Monetizing Quality
Improving the Economics of Service Delivery
Increased Spectrum Efficiency
Improved Battery Life
Fast-Tracking Profitable New Services
More than Just Voice
Faster Call Setup
The Appeal of Convenience
Improving Existing Voice Quality
Operator Deployment Plans: How Much, How Soon?

CHAPTER 2
What is VoLTE?
Circuit Switched Fallback (CSFB)
Importance of QoS and Policy Control to Enable VoLTE

CHAPTER 3
Challenges To Deploying VoLTE
Validating New Devices and Configurations
Interoperability in Increasingly Multi-vendor Environments
Signaling
Fallback
Ensuring Quality of Experience (QoE)
Impact on value-added services
Stress / Scalability

CHAPTER 4
Validating VoLTE “Lab to Live”
Critical Test Capabilities
Realism / Traffic Generation
Subscriber Modeling
Load Testing
QoS / Service Validation
Live Network Monitoring
Scope of Testing

CHAPTER 5
VoLTE Test Configurations .
Test Configuration: VoLTE Client End to End Across the Network
Test Configuration: UE/eNodeB Emulation
Across the VoLTE Network
Test Configuration: IMS Isolation
Test Configuration: eNodeB Isolation
Test Configuration: EPC Isolation

CHAPTER 6
VoLTE Test Cases: Overview
Test Case Format

CHAPTER 7
Section 1: VoLTE Setup
LTE Attach Call Flow
IMS Registration Call Flow
Test Case 1: IMS Registration
Test Case 2: IMS Registration with IMS AKA
Test Case 3: SIP Subscribe Procedure
Test Case 4: SIP De-Registration on UE Power Down
Test Case 5: SIP De-Registration on Network Release

CHAPTER 8
Section 2: VoLTE Voice-Only Call
Measuring Quality of Voice
Test Case 6: VoLTE Voice-Only Call with Wideband AMR
Test Case 7: VoLTE Call Release Initiated by the Calling Party
Test Case 8: VoLTE Call Release Initiated by the Called Party
Test Case 9: Redirect VoLTE Call to Voice Mail after Called Party is Busy
Test Case 10: Redirect VoLTE Call Not Answered to Voice Mail
Test Case 11: Originator Cancels the Call Before Ringing
Test Case 12: Originator Cancels Call after Ringing
Test Case 13: Loss of PDN Connectivity
Test Case 14: Loss of SIP Signaling
Test Case 15: Loss of Media Bearer
Test Case 16: Voice Call Waiting, Second-Party Hold
Test Case 17: Voice Call Switch Hold
Test Case 18: Voice Third Call Redirect to Voice Mail
Test Case 19: Handover During VoLTE Voice-Only Call
Test Case 20: DTMF Tone Handling
Test Case 21: VoLTE Emergency Registration
Test Case 22: VoLTE Emergency Call

CHAPTER 9
Section 3: VoLTE SMS
Test Case 23: VoLTE Send SMS

CHAPTER 10
Section 4: VoLTE Video and Voice Call
Test Case 24: VoLTE IR.94 Registration with IMS AKA Authentication
Test Case 25: VoLTE 2-Way Video Call with 2-Way Audio
Test Case 26: VoLTE Video Call Originator Terminates
Test Case 27: VoLTE Video Call, Called Party Terminates
Test Case 28: Change of Video Parameters
Test Case 29: Video Call – a User Stops Video
Test Case 30: Video Third Call Redirect to Voice Mail on Ignore
Test Case 31: Video Call Accepted as Voice Only
Test Case 32: Voice Call Transition to Video Call Accepted
Test Case 33: Voice Call Transition to Video Call Ignored/Time-out
Test Case 34: Voice Call Transition to Video Call Rejected
Test Case 35: Handover During VoLTE Video Call
Test Case 36: Video Call Put on Hold
Test Case 37: Video Call Switch Hold
Test Case 38: Video Third Call Redirect to Voice Mail

CHAPTER 11
Section 5: Advanced VoLTE Testing
Test Case 39: Voice Ad-Hoc Multi-Party Conference
Test Case 40: Video Ad-Hoc Multi-Party Conference
Test Case 41: Multitasking + Video Call
Test Case 42: VoLTE Video Load Scenario

CHAPTER 12
Section 6: Real-World VoLTE Subscriber Modeling
Test Case 43: Airbus A380 Landing
Test Case 44: Power Outage Restored
Test Case 45: High-Density Financial District
Test Case 46: Rush Hour Commuter Traffic
Test Case 47: Large University


CHAPTER 13
Monitoring Challenges, Solutions, and Best Practices


CHAPTER 14
Best Practices for Monitoring VoLTE in EPCs
Key Performance Indicators for Monitoring VoLTE

CHAPTER 15
Ixia VoLTE Test Solutions
IxLoad Access
IxLoad
Key Features
Wireless Triple-Play Bundle
Xcellon-Ultra NP Load Module
Key Features
XAir Module
Key Features
r10 Wideband Radio Head
Key Features
High-Performance Chassis
Key Features
Ixia Hardware Configuration for VoLTE Testing
One-Sector Configuration
Three-Sector Configuration
Six-Sector Configuration
References