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CSFB Performance
 

CSFB Performance

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Qualcomm presentation from 4G World

Qualcomm presentation from 4G World

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    CSFB Performance CSFB Performance Presentation Transcript

    • CSFB Performance October 2012© 2012 Qualcomm Technologies, Inc. All rights reserved. 1
    • High-Level Multimode Options for LTE Voice Initial Launches Initial Voice Solution Long-Term Voice Solution Data Devices LTE Data Handsets LTE VoIP Handsets LTE for Data Simultaneous LTE VoIP LTE for Data Only 2G/3G for Voice and Rich Data Services Dual-Radio 1x Voice + 4G Data VoLTE with Single Radio LTE/3G/2G Voice Call Continuity Multimode Circuit Switched Fallback to 2G/3G VT and RCS-Enabled (Redirection, Services and Apps PS Handover) CS Voice and Data + CSFB for Roaming 2G/3G Coverage Continuity and Roaming© 2012 Qualcomm Technologies, Inc. All rights reserved. 2
    • First Step for LTE Voice SupportCircuit Switched Fallback (CSFB) Enables global voice/SMS roaming and interworking for LTE devices Fully standardized for 2G and 3G Utilizes mature/ubiquitous 2G/3G networks for voice Commercially launched across all LTE regions Strong global ecosystem Reliability comparable to native CS calls Subsecond incremental call setup time in live networks CSFB Enables Single Radio Device Architecture with Better Cost, Power, and Form Factor© 2012 Qualcomm Technologies, Inc. All rights reserved. 3
    • CSFB Network Architecture 3GPP CSFB Network 3GPP2 CSFB Network SGSN 1x MSC/ S3 S4 MME IWS VLR S102 A1 S1-C E-UTRAN MSC/ MME SGs VLR S11 S1-C E-UTRAN S5/S8 SGi S-GW P-GW S11 S1-U S5/S8 SGi S-GW P-GW S1-U© 2012 Qualcomm Technologies, Inc. All rights reserved. 4
    • CSFB Summary Device is registered for both CS and PS services via LTE CS voice pages are delivered over LTE Device remains on LTE except for voice calls SMS can be received over LTE For voice calls, UE falls back to UMTS/GSM/C2K Mobility methods supported: Method Target Info Target Prepared Measurements LTE → W LTE → G LTE → C2K Redirection Target Frequency No Optional Yes Yes Yes Cell Change Order Target Cell No Required No Yes No Handover-Based Target Cell Yes Required Yes Yes Yes© 2012 Qualcomm Technologies, Inc. All rights reserved. 5
    • CSFB to UTRAN Call Setup Delay (Mobile-Originated) Redirection-Based CSFB Call Setup Delay with SI Tunneling Is Comparable to Legacy Call Setup Delay 7000 Additional CSFB Delay 6000 UTRAN Legacy 2530 Call Setup Delay (ms) 5000 530 380 4000 3000 2000 4000 4000 4000 1000 0 Redirection Rel 8 Redirection Rel 9 (SI Tunnel) PS HandoverData shown redirection scenarios is based on results from LAB and field testing. Data shown for handover scenario is based on internal Qualcomm Technologies testing.© 2012 Qualcomm Technologies, Inc. All rights reserved. 6
    • CSFB to UTRAN Call Setup Delay (Mobile-Terminated) Redirection-Based CSFB Call Setup Delay with SI Tunneling Is Comparable to Legacy Call Setup Delay 6000 Additional CSFB Delay 5000 UTRAN Legacy Call Setup Delay (ms) 4000 2530 3000 530 380 2000 2640 2640 2640 1000 0 Redirection Rel 8 Redirection Rel 9 (SI Tunnel) PS HandoverData shown redirection scenarios is based on results from LAB and field testing. Data shown for handover scenario is based on internal Qualcomm Technologies testing.© 2012 Qualcomm Technologies, Inc. All rights reserved. 7
    • CSFB PS Data Interruption The Handover Option Provides the Lowest Data Interruption Time; For the Redirection Options, ISR Can Significantly Reduce Data Interruption Time 8000 Without ISR With ISR 7000 6770 CSFB PS Data Interruption (ms) 6000 5000 4770 4000 3000 2770 2000 1000 770 300 300 0 Redirection Rel 8 Redirection Rel 9 (SI Tunnel) PS HandoverData shown redirection scenarios is based on results from LAB and field testing. Data shown for handover scenario is based on internal Qualcomm Technologies testing.© 2012 Qualcomm Technologies, Inc. All rights reserved. 8
    • CSFB to GERAN Call Setup Delay (Mobile-Originated) RRC Release with SI Tunneling Provides the Best CSFB Solution 8000 Additional CSFB Delay 7000 GERAN Legacy 6000 Call Setup Delay (ms) 2960 2660 5000 2560 4000 560 3000 2000 3900 3900 3900 3900 1000 0 Rel 8 RRC Release Rel 9 RRC Release Rel 8/Rel 9 CCO/NACC Rel 8/Rel 9 Handover (SI Tunnel)Data shown is based on internal Qualcomm Technologies testing.© 2012 Qualcomm Technologies, Inc. All rights reserved. 9
    • 1xCSFB Call Setup Delay e1xCSFB Offers the Shortest Call Setup Time 5000 Native 1x 4700 Rel 8 1xCSFB 4260 4000 e1xCSFB 4000 1xCSFB Call Setup Delay 3000 2390 2000 1700 1650 1000 0 Mobile-Originated Mobile Terminated© 2012 Qualcomm Technologies, Inc. All rights reserved. 10
    • Dual Radio vs. e1xCSFB Metric Dual Radio Solution e1xCSFB Estimated MO Call Setup Delay 50ms+e1xCSFB Best Estimated MT Call Setup Delay 1870ms+e1xCSFB Best Standby Power Consumption 1x+LTE Idle Standby Best (LT-Only Standby) User Experience Best (Simultaneous Voice and Data [SVD]) No SVD Device Cost Higher Lower Network Cost Lower (No Network Impact) Higher Outbound Roaming No Network Impact* Needs LTE Roaming to Support e1xCSFB** Inbound Roaming 1x voice, Data on EV-DO*** All Inbound Roamers Allowed SMS Need IMS to Offload from 1x Network Reuse S102 to Offload from 1x n/w Future Considerations VoLTE Will Require Nationwide LTE S102 Can Be Reused for SRVCC*Some 1x and LTE band combinations may need special attention. **If LTE roaming is not in place then the device will camp on 1x network, provided 1x roaming agreement is in place. *** Dependency on PRL configuration © 2012 Qualcomm Technologies, Inc. All rights reserved. 11
    • In Conclusion CSFB offers a solution with the cost, size, and battery life advantages of single-radio solutions, LTE data speeds, and reliability/ubiquity of 2G/3G voice Redirection-based CSFB using Release 9 SI Tunneling, for both 3G and 2G offer call delays within subseconds of legacy call setup delay Redirection-based CSFB offers call reliability on par with legacy call setup reliability Compared to dual radio solution, e1xCSFB offers more cost effective device solution and also with shorter call setup delay Additional details on CSFB are also available at: http://www.qualcomm.com/media/documents/circuit-switched-fallback-first-phase-voice- evolution-mobile-lte-devices© 2012 Qualcomm Technologies, Inc. All rights reserved. 12
    • © 2012 Qualcomm Technologies, Inc. All rights reserved. Qualcomm, Snapdragon, and Gobi are trademarks of Qualcomm Incorporated, registered in the United States and other countries. Trademarks of Qualcomm Incorporated are used with permission. Other products and brand names may be trademarks or registered trademarks of their respective owners. Qualcomm Technologies, Inc 5775 Morehouse Drive San Diego, CA 92121-1714© 2012 Qualcomm Technologies, Inc. All rights reserved. 13
    • Agenda4G World Wednesday October 31st 1:30pm to 4:30pm 1:30 pm The 1000x mobile data challenge - 1:30 How do we enable 1000x? Rasmus Hellberg, Sr Director, Tech Marketing, - 1:45 How do we get access to new spectrum to reach 1000x? Prakash Sangam Director, Tech Marketing - 2:00 Taking HetNets to the next level for 1000x Rasmus Hellberg Sr Director, Tech Marketing - 2:15 The small cell products to power 1000x Prakash Sangam Director, Tech Marketing (3G/4G small cells, Wi-Fi) 2:45pm The Chipset evolution and multimode challenges - 2:45 Smartphone signaling and power enhancements Sunil Patil, Director, Product Management - 3:05 Solving the global multimode and carrier aggregation challenges Peter Carson ,Sr Director Marketing - 3:25 Circuit switched fallback, performance and interworking Sunil Patil, Director, Product Management (LTE FDD/TDD GSM, UMTS, TD-SCDMA, 1X) 3:45pm The Voice and data Service evolution—together with Ericsson - 3:45 The latest on VoLTE Eric Parsons, Strategic Product Manager, (RCS, SRVCC VoLTE, VoIP over other accesses) , LTE, Ericsson - 4:00 How do we achieve the Smart Pipe? (QoS and more) Peter Carson, Sr Director Marketing - 4:10 LTE Broadcast services and opportunities Mazen Chmaytelli, Sr Dir, Business Dev. 14