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VoLTE – A Game Changer for Policy: Policy Control & Data Pricing Conference
VoLTE – A Game Changer for Policy: Policy Control & Data Pricing Conference
VoLTE – A Game Changer for Policy: Policy Control & Data Pricing Conference
VoLTE – A Game Changer for Policy: Policy Control & Data Pricing Conference
VoLTE – A Game Changer for Policy: Policy Control & Data Pricing Conference
VoLTE – A Game Changer for Policy: Policy Control & Data Pricing Conference
VoLTE – A Game Changer for Policy: Policy Control & Data Pricing Conference
VoLTE – A Game Changer for Policy: Policy Control & Data Pricing Conference
VoLTE – A Game Changer for Policy: Policy Control & Data Pricing Conference
VoLTE – A Game Changer for Policy: Policy Control & Data Pricing Conference
VoLTE – A Game Changer for Policy: Policy Control & Data Pricing Conference
VoLTE – A Game Changer for Policy: Policy Control & Data Pricing Conference
VoLTE – A Game Changer for Policy: Policy Control & Data Pricing Conference
VoLTE – A Game Changer for Policy: Policy Control & Data Pricing Conference
VoLTE – A Game Changer for Policy: Policy Control & Data Pricing Conference
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VoLTE – A Game Changer for Policy: Policy Control & Data Pricing Conference

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Now that LTE networks have been rolled out by most of the service providers in the world, the next objective for operators is the migration of the voice service to the LTE network. This migration is …

Now that LTE networks have been rolled out by most of the service providers in the world, the next objective for operators is the migration of the voice service to the LTE network. This migration is known as Voice over LTE or VoLTE.

VoLTE brings the two sides of the same coin. On the one hand, VoLTE is bringing multiple benefits for service providers (spectrum efficiency, high quality voice, OPEX & CAPEX reduction, etc) but on the other hand, VoLTE service is also bringing some challenges. Those challenges have an special impact on the Policy Management solutions currently deployed for Data Services as this node becomes a critical node in the network for VoLTE.

Policy Management plays a significant role in VoLTE and becomes a mandatory node in the network. This node is responsible for establishing and releasing, on behalf of the IMS domain, the bearer required to accommodate voice traffic.

Additionally, VoLTE is defining some stringent requirements for Policy Management solutions.

This week I spoke at the Policy Control 2014 conference in Berlin on VoLTE, a Game Changer for Policy. Find out more information on Cisco’s Quantum Policy Suite for mobile: http://www.cisco.com/c/en/us/products/wireless/quantum-policy-suite-mobile/index.html .

You can also view the blog about this here: http://blogs.cisco.com/sp/volte-a-game-changer-for-policy/ .

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  • 1. Alfonso San José Consulting Systems Engineer, Quantum Policy April 7th-9th, 2014 - Berlin Policy Control & Data Pricing Conference VoLTE – A game changer for Policy Tony Bobowicz Regional Sales Manager, Quantum Policy
  • 2. Cisco Public 2© 2013-2014 Cisco and/or its affiliates. All rights reserved. Presentation Flow VoLTE Overview VoLTE PCRF Challenges VoLTE PCRF Network Insertion
  • 3. Cisco Public 3© 2013-2014 Cisco and/or its affiliates. All rights reserved. VoLTE Benefits for Service Provides Concept Factor Benefit Business Critical In 2017 still 50% of SP revenue from Voice Globally $ 600b Revenue Spectrum Efficiency 2x Number of Calls 50%-100% Data capacity increase CAPEX OPEX Simplification Data and Voice on same network 50% O&M Cost reduction CAPEX OPEX Lower Call setup time CSFB = 5 second delay Quality of Experience Revenue (OTT threat) High Quality Voice Better bandwidth use QoS vs Best Effort Quality of Experience Revenue (OTT threat) New Services Voice & Video & Chat integration Revenue
  • 4. Cisco Public 4© 2013-2014 Cisco and/or its affiliates. All rights reserved. EPC VoLTE APN & Bearers GSMA IR.92 IMS PGW IMS (SIP) Client • A dedicated “IMS” APN is used for VoLTE traffic Typically established during initial attach as default APN • Default bearer for SIP signaling, dedicated bearers established only for the duration of the voice/video call for RTP traffic PCRF initiated Dedicated Bearers activation based on P-CSCF request for media session • Voice call can be transferred to CS (SRVCC) Default bearer, QCI=5 (SIP Signaling) Dedicated Bearer, QCI=1 (RTP Voice) PCRF Dedicated Bearer, QCI=2 (RTP Video) P-CSCF AGW Gx Rx (SIP) (RTP) APN “IMS” Typical IMS Appl. Servers (AS): - TAS/MMTel Telephony AS (VoIP) - IP SM GW (SMS) - IM-SSF (IN interwork) AS S-CSCF
  • 5. Cisco Public 5© 2013-2014 Cisco and/or its affiliates. All rights reserved. VoLTE is a Game changer for Policy  PCRF becomes mandatory in a network  Dedicated Bearer Establishment / Release  Gateway between IMS Core and Packet Core  Dedicated Bearer Establishment Allocation Status  Network Provided Location Information  Charging parameters  Emergency Calls  Supplementary Services ; Media Flows Add / Delete  VoLTE introduces a set of challenges for PCRF suppliers  Scalability  Latency  Session Correlation  Resiliency - Geographic Redundancy
  • 6. Cisco Public 6© 2013-2014 Cisco and/or its affiliates. All rights reserved. VoLTE Challenges - Scalability  Requirements for a VoLTE PCRF  High Transaction rate capacity  Cost effective scalability 0 2 4 6 8 Data VoLTE • TPS Comparison 3m subscribers Data Services vs VoLTE 3x/4x TPS 3x/4x  Key Factors to evaluate  Capacity ? Linear scalability ?  DRA required to scale ?  Redundancy Model ? N+1, 1+1 ?  Virtualized ?
  • 7. Cisco Public 7© 2013-2014 Cisco and/or its affiliates. All rights reserved. VoLTE Challenges - Latency  Requirements for a VoLTE PCRF  Low latency as multiple transactions  Low latency even at high TPS rates VoLTE Data• Latency Figures Data Services vs VoLTE 100 ms vs 10 ms  Key Factor to evaluate  Latency of PCRF ?  DRA required ?  Latency introduced by DRA ?
  • 8. Cisco Public 8© 2013-2014 Cisco and/or its affiliates. All rights reserved. VoLTE Challenges – Session Correlation  Requirements for a VoLTE PCRF  Solution capable of applying Diameter session correlation • Diameter Connections Data PCRF PCEF VoLTE PCRF PCEF AF  Key Factors to evaluate  DRA required for Session Correlation ?
  • 9. Cisco Public 9© 2013-2014 Cisco and/or its affiliates. All rights reserved. VoLTE Challenges – Resiliency  Requirements for a VoLTE PCRF  Voice calls shall persist in case of site failover  Session replication between sites is mandatory Data 2G / 3G • High Availability Data 4G • High Availability VoLTE • Geographic Redundancy  Key Factors to evaluate  Geo Red ? Geo Red model ?  HW / SW impact ?  Redundancy Model ?
  • 10. Cisco Public 10© 2013-2014 Cisco and/or its affiliates. All rights reserved. VoLTE PCRF Network Insertion  Functional separation  Data Services provided by Data PCRF (Default APN)  VoLTE Service provided by VoLTE PCRF (IMS APN)  Deployment Options  Functional separation done by PGW  Functional separation done by High Order PCRF
  • 11. Cisco Public 11© 2013-2014 Cisco and/or its affiliates. All rights reserved. Functional separation at PGW 3G / 4G GGSN / PGW Internet Diameter Gx (Default APN) Diameter Gx (IMS APN) Data Services PCRF Performance Mmgt Fault Management AF VoLTE Service PCRF Diameter Rx UDR LDAP SNMP
  • 12. Cisco Public 12© 2013-2014 Cisco and/or its affiliates. All rights reserved. Functional separation by High Order PCRF 3G / 4G GGSN / PGW Internet Diameter Gx (Default APN) Diameter Gx Data Services PCRF Configuration Mgmt Performance Mmgt Fault Management AF High Order & VoLTE PCRF Diameter Rx UDR LDAPSOAP / XML SNMP
  • 13. Cisco Public 13© 2013-2014 Cisco and/or its affiliates. All rights reserved. Summary  VoLTE is here and it is for good !!!  It is time to re-evaluate Policy Management solutions  Clean separation in Policy for Data and VoLTE Services
  • 14. Cisco Public 14© 2013-2014 Cisco and/or its affiliates. All rights reserved.  http://www.cisco.com/c/en/us/products/wireless/quantum-policy-suite- mobile/index.html  http://www.cisco.com/c/en/us/solutions/service-provider/mobile- internet/index.html  http://blogs.cisco.com/sp/volte-a-game-changer-for-policy/ For More Information…
  • 15. Thank you.

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