GSMA AP LTE Roaming Syniverse[1]

LTE Roaming –Challenges and Opportunities

Windy Zou KohlSenior Vice President - AP

Syniverse Technologies

LTE Progress Today

Network evolution to LTE is inevitable due to demands for mobile broadband solutions

A dozen operators committed to deploying LTE in 2010, 125 operators are planning or in LTE deployment

North America will be first to deploy LTE, closely followed by several countries in Asia Pacific and Europe

Spectrum harmonization underway globally on spectrum allocation and strategies for LTE

LTE roaming trials are starting

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Global LTE Adoption Forecast

Global Subscription Forecast for LTE TechnologySource: Yankee Group, 2009

Global Market Subscription (in millions)

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LTE Adoption Forecast for Asia Pacific

Subscription Forecast for LTE Technology for Asia-PacificSource: Yankee Group, 2009

AP Market Subscription(in millions)

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Presenter

Presentation Notes

The Asia-Pacific region offers the greatest opportunity for LTE during the forecast period. Markets of particular note include Japan and Korea because of the maturity of mobile data and aggressive approach being taken to early market deployments. In Japan, both NTT DoCoMo and KDDI have committed to relatively aggressive deployment time lines. For the purposes of the forecast we have assumed that DoCoMo will commercialize LTE in the first half of 2011, and KDDI in the second half of 2011. It is assumed that other players like SoftBank will lag DoCoMo by 18 months, but will be more aggressive than its competitors in advancing its LTE device and infrastructure ecosystem. In Korea, both SK Telecom and KT Freetel have announced relatively aggressive commitments for LTE. However there remain several issues that we believe are yet to be addressed, most notably the availability of radio spectrum, and the positioning of LTE relative to WiMAX and HSPA+. Traditionally the Korean service providers have successfully deployed multi technology environments, which meet local market demand and support its massive consumer electronics business aimed at exporting mobile communications technology. For the purposes of our forecast, we assume the Korean market starts commercializing LTE in the first half of 2011. Although China Mobile has been aggressive in promoting its TDD variant of LTE, we do not believe its deployment will be aggressive in the marketplace. We believe the interest in expediting a TDD variant of LTE is to ensure that its TDSCDMA technology (which is proprietary to China) has a road map toward 4G. For the purposes of the forecast, we have assumed that LTE is not commercialized until the first half of 2013 in China. In India 3G auctions are anticipated in August 2009. We believe the FDD licenses will be used to support the massive growth in voice services, and the TDD license will leverage WiMAX technology (see the November 2008 Yankee Group Report, “Accelerating Indian Broadband with Upcoming BWA Spectrum Auctions”). On this basis, our forecast assumes that LTE will take hold in India in 2014. We have adopted similar timing for LTE in other emerging Asia-Pacific markets, like Malaysia, Indonesia and Thailand.


LTE Impact on Roaming

Core network evolution• EPC/IMS specs, standards

bodies• Impact on charging models• Local breakout

Support new protocols and interfaces• Diameter, SIP, PMIP, GTPv2• S6a, S8, S9, S13, etc.

Network interworking evolution• IPX: Support for LTE and

IMS, QoS• Backward compatible

Interworking between LTE and legacy networks• Multiple roaming scenarios

coexist• More complex testing

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LTE Impact on Roaming - Core

3GPP evolved packet core (EPC) and IMS specs provide technical support for LTE roaming• Details for local breakout in visited network being outlined

GSMA roaming in LTE (RiLTE) and next generation roaming and interworking (NGRAI) groups are addressing LTE roaming• Focus on issues such as handling voice calls in LTE roaming

environment

• 3GPP QoS class identifier (QCI) mechanism is one of the options for application awareness

• Use of deep packet inspection (DPI) is explored by NGRAI

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LTE Impact on Wholesale Charging

The GSMA transferred account data interchange group (TADIG) is reviewing the impact on wholesale clearing and settlement processes, and TAP record specification

Planning new recording entity-type codes for the serving and PDN gateway network elements to TAP record specification in May 2010• Addition of QCI codes to TAP records under investigation

Full TAP support for LTE/IMS roaming currently being evaluated by GSMA working groups

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LTE Local Breakout Impact on Retail Billing Processes

Local breakout: Ability for the home operator to direct subscribers’ data sessions to the visited network PDN-GW

2G/3G operators can choose to use TAP records from visited network or G-CDRs from home GGSNs to enable retail billing

If local breakout is used in LTE, then CDRs will not be generated by PDN-GWs in the home network• May cause operators to move to retail billing based on visited

network, TAP only, or a combination of visited network TAP and home PDN-GW CDRs

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Network Interworking Evolution

GRX supports GRPS, EDGE, 3G, HSPA data roaming and MMS interworking• No inherent support for LTE or IMS

• Only specified for use by mobile network operators

• No required support for QoS

IPX is developed by the GSMA to foster open standardized IP connectivity for multiple types of service providers • Provides for end-to-end QoS in support of both roaming and

interworking for LTE and IMS

• Fully backward compatible with GRX networks

• Used by MNOs, FNOs, ISPs and ASPs

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Network Evolution to Support LTE

Single connection points (geo-redundant) for converged service • CRX, GRX, signaling (IP Sigtran), IPX (LTE), others

End-to-end QoS supported for 2G/3G/LTE through an IPX network

Option to reuse existing network assets (GRX/CRX)

Syniverse Backbone

IP Network

Diameter Proxy

Diameter Proxy

Syniverse GRX

GRX provider peering

CRX provider peering

Syniverse CRX

Existing GPRS/UMTS

operators

LTE operator

connected to IPX

GSM operator connected to

IPX

Existing CDMA

operators

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Integrated Roaming Solutions for LTE & Legacy Networks

Integrated solution across multiple technologies ensures end user QoE and simplifies operations and support

CDMA Roaming

GSM/LTE Sponsored

UniRoam®

GSM/LTE Bilateral

OC Roaming Hub

Agreement management

Network transport

Fraud management

Signalingrouting & mapping

Data & financial clearing

Businessintelligence

GSM/CDMA operator

CDMA operators

GSM/LTE operators

GSM/LTE operators

Sponsor

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Presenter

Presentation Notes

-Multiple roaming platforms and for each our goal is to ensure that Roaming lifecycle various things to keep in mind – some of it happens in real time and others in non-real time- real time. This becomes more important as we support your evolution to LTE Syniverse Uniquely Positioned to Support Verizon Network Transitions to LTE – support new billing requirements, support new protocols for LTE such as Diameter – SIP instead of SS7 Business continuity Consistent tool sets through network transitions (e.g. Vis Services; Analyzer) Evolved integrated solutions Common development & support structures Leadership with full suite of CRX / GRX / IPX capability Customized support for Verizon networks & processes


Sponsored Roaming

Complete end-to-end sponsored roaming solution, supporting inbound and outbound roaming• Uses sponsor network and Syniverse’s Sponsored Roaming platform• Syniverse utilizes an implicit IMSI range from the sponsor network• Operation is invisible to subscriber• Subscriber retains home MSISDN• Operator retains control in home HLR• Support for inbound roaming is subject to GSMA BA.21 requirements

Visiting Roamers

Roaming Subscribers

IP or SS7 SS7

Syniverse roaming gateway

Sponsor operator’s network

SS7/SIGTRAN SS7/SIGTRAN SS7/SIGTRAN SS7/SIGTRAN

Mobile Operator’s Network

Sponsored Roaming Partners’ Network

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Presenter

Presentation Notes

Outbound: Syniverse uses Sponsor IMSI to authenticate from visited network Outbound roamers appear to be roamers from Sponsor network TAP files split out from Sponsor’s by SVR DCH function Financial settlement handled by SVR FCH function

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GSM/LTE Bilateral Roaming

Near real-time signaling/call data analysis, modeling and alerting

Dynamic AA. 12, 13, 14, IOT database

High usage reporting, NRTRDE

DCH, FCH

SS7, Sigtran transportSCCP gateway

GRX, IPX

Agreement management

Network transport

Fraud management

Signalingrouting & mapping

Data & financial clearing

Businessintelligence

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Syniverse Technologies 1414

Roaming Hub

AgreementManagement

IREG TADIG Testing

Data Clearing House*------

Financial Clearing House

NRTRDE*Visibility®

Services*Centralized Signaling/

Network

One signaling configuration for routing to hub that enables symmetrical routing

Simplifies establishment of roaming agreements and launch of new services with roaming partners

One contract/ one invoice for billing, settlement and clearing

Customer tools and services to manage hub-related information and processes

Facilitates transmission of call detail records in near real time

Hub-coordinated testing services using automated testing equipment

*Optional


Syniverse has defined a new roaming hub architecture method “diameter routing”• On both MNO-hub and hub-hub interfaces• Change request to GSMA PRD IR.80 (Syniverse is the author)

Alias GT

SCCP Translation Type

MTP Direct Routing

SUA/SCTP

Diameter Routing

Syniverse OC Roaming Hub

Operator A

Operator B

Operator C

3rd party roaming

hubs

Roaming Hub Signaling Architecture

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Integrated Approach to Hubbing

Importance of value-added services such as business intelligence, CAMEL Hub and virtual roaming environment

Integrating messaging/interworking

Future proof: Support for IPX, roadmap to 4G

Other critical criteria to successful and sustainable hubs:• GSMA certification• Neutrality and independence• Complete and proven capability• Financial stability• Global presence• Holistic approach to simplify operations• Leadership role in GSMA and hubbing project

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Business Intelligence: Improving End-User Experience While Optimizing Revenue

Value Proposition

Proactive alerting and resolution

Personalized interaction with end user

Near real-time actions based on analysis

Operators Subscribers

Advanced Analytics

Revenue Optimization

Business Rules Engine (BRE)Visibility®

Services -RoamProActive

RoamWise RoamMonitor

Actionable Alerts

Personalized Interaction

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Core NetworkGSM, CDMA, LTE

Operators’ Partner for Now and Future

Roaming enablementWholesale managementNetwork managementFraud managementReporting and provisioning

Uniquely qualified partner on CDMA/GSM/LTE evolution pathBusiness continuity

• Consistent process and tool sets

Maximum efficiency and profitability• Focus on being the best operator

Evolved integrated solutions• Vs. piecemeal, compartmentalized approach

Full support for all networks and processes• Multi-network seamless evolution and

integration

Product development and integrationIT operationsFinance operationsNetwork operations

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Conclusion

LTE roaming brings many roaming and interworking challenges and opportunities across network and billing processes for operators

Roaming solutions need to support LTE protocol and network evolutions

Integrated solution across core/transport network, billing and operations support needed to ensure optimal QoE

Syniverse is a uniquely qualified partner to support evolution to LTE and provide integrated solutions that align with operator network systems and billing processes

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Documents

GSMA AP LTE Roaming Syniverse[1]