LTE World Summit 2012 M. ismail mobily-wed_zone-2_masterclass

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LTE World Summit Barcelona May 2012
MASTERCLASS

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LTE World Summit 2012 M. ismail mobily-wed_zone-2_masterclass

  1. 1. CS Voice with LTE Introduction Ismail Mueen Ismail Executive Manage/Core May 23, 2012www.mobily.com.saCONFIDENTIAL | www.mobily.com.sa
  2. 2. CS Voice with LTE Introduction 1. Introduction 2. 2012 LTE Year 3. 4 Tracks for Voice over LTE 4. Circuit Switched Fallback (CSFB) 5. Conclusion Reference No. (9 pt Arial)5/28/2012 2 Highly Confidential
  3. 3. CS Voice with LTE Introduction 1 Introduction • 2012 is going to be year of LTE (commercial launches). • The GSA (Global mobile Suppliers Association) confirms 319 operators have committed to commercial LTE network deployments or are engaged in trials, technology testing or studies. • GSA Confirms 72 commercial LTE networks launched so far in 37 countries. • -258 LTE network deployments are planned or in progress in 84 countries. • LTE challenges the operators current SMS and voice revenues, which today represent more than 70 percent of their global business. • Which voice over LTE solution offers the most advantages for operators and Reference No. (9 pt Arial) satisfies user expectations? • Today, GSMA VoLTE is the preferred industry choice for mass-market voice services over LTE. It leverages traditional telecom characteristics, such as high quality and global reach, and at the same time offers an optimal evolution path towards full multimedia services.5/28/2012 3 Highly Confidential
  4. 4. CS Voice with LTE Introduction 2 2012 LTE Year Reference No. (9 pt Arial) LTE Maps: About Map: LteMaps shows all global LTE deployments commitments. It includes a variety of commitment levels including intentions to trial, deploy, migrate, etc. There is one red marker per country for all operators to show commitments and one blue marker to show actual deployments.5/28/2012 4 Highly Confidential
  5. 5. 3 4 Tracks for Voice over LTE A solution for voice over LTE will be needed as LTE access becomes more widespread. The industry has identified four main tracks: • Circuit Switched Fallback (CSFB) to 2G/3G CS existing NW. • IMS-based, such as 3GPP IP Multimedia Subsystem (IMS) Multimedia Telephony (MMTel) over LTE. • Over-the-top (OTT) – for example, Skype. Reference No. (9 pt Arial) • Circuit Switched over Packet Switched (CS over PS) – for example, voice over LTE via Generic Access (VoLGA).5/28/2012 5 Highly Confidential
  6. 6. 4 Circuit Switched Fallback (CSFB) • CSFB is the 3GPP standard solution for early LTE deployment - Where no IMS voice service is available. • Standardized from 3GPP Rel 8 - Implemented according to Rel 9 - 3GPP TS 23.272, Circuit Switched Fallback in EPS • Through CSFB, the terminal is directed to WCDMA/GSM to initiate or take a voice call - the call remains in the CS domain until it is completed. Reference No. (9 pt Arial) • This solution is currently recommended by the Next Generation Mobile Networks (NGMN) - as a minimum roaming requirement for LTE terminal vendors - and LTE operators that provide a CS voice service over WCDMA/GSM.5/28/2012 6 Highly Confidential
  7. 7. 4 Circuit Switched Fallback (CSFB) (Continue) • As CSFB provides support for voice and SMS, it is considered an intermediate step in the evolution towards fully fledged multimedia communication services. • SMS over SGs-interface. SMS tunnelled over LTE (user remains in LTE) Reference No. (9 pt Arial)5/28/2012 7 Highly Confidential
  8. 8. 4.1 SMS over SGs New interface and new SGsAP SCTP protocol (SGsAP) IP L2 L1 - New protocol and interface between the MSC and MME; SGs Application Part (SGsAP). - The SGs is used to handle mobility management and paging procedures between EPS and the CS domain, and, for SMS, to deliver both mobile originating and mobile terminating SMS. - SMS over SGs is independent from CS Fallback; it does not trigger CS Fallback. As no fallback takes place, SMS over SGs does not require overlapped coverage of LTE and legacy technologies. Reference No. (9 pt Arial) Benefits • Over The Air activation (OTA) for laptop users bringing significant Opex savings in provisioning. • Capex savings from reusing existing infrastructure • Increased revenues from SMS usage in LTE • SMS based alerts for high PS data costs while roaming abroad5/28/2012 8 Highly Confidential
  9. 9. 4.2 Why SMS over SGs & CSFB? • LTE is a packet only architecture • LTE has no inbuilt voice and SMS service engine • LTE terminals do not support dual mode capabilities • LTE coverage and quality need to mature • Early LTE deployment (spotty coverage) • Providing today’s CS services together with LTE handsets • Reuse of existing CS infrastructure Reference No. (9 pt Arial) • Reuse of existing roaming agreements • Superior voice performance with CS compared to OTT (Skype, msn, etc)5/28/2012 9 Highly Confidential
  10. 10. 4.3 Concept (CSFB and SMS over SGs) LTE LTE Reference No. (9 pt Arial) Fallback to GSM/WCDMA Return to LTE GSM /WCDMA5/28/2012 10 Highly Confidential
  11. 11. SMS over SGs MME SGs MSC SMS tunnelled over LTE (user remains in LTE) S1 A/Iu Reference No. (9 pt Arial) LTE Voice, after CS Fallback GSM/WCDMA5/28/2012 11 Highly Confidential
  12. 12. 5 Conclusion• Mobile broadband is exploding and LTE deployment is gaining momentum with mass-market reach expected by 2012.• CSFB is happening now with LTE SMARTPHONES as driver• CSFB benefits: • Opex Saving: Over The Air activation (OTA) for laptop users bringing significant OpEx savings in provisioning. • Capex savings Reference No. (9 pt Arial) Capex saving from reusing existing infrastructure • Increased revenues Additional revenues from SMS usage in LTE • Regulatory compliance SMS based alerts for high PS data costs while roaming abroad5/28/2012 12 Highly Confidential
  13. 13. Thank You Reference No. (9 pt Arial)5/28/2012 13 www.mobily.com.sa Highly Confidential

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