LTELong Term Evolution – The next generation of telecommunication
Topics• introduction• history• features• competitor -WiMAX• problems of LTE• what’s next
Introduction• next generation of Telecommunication network following the  UMTS/HSPA+• the standard is developed by the 3GP...
Not 4G
History• first Proposed by NTT DoCoMo in 2004• first publicly launched by TeliaSorena in 2009
Features• IP-based network• peak data transfer rate - downlink 300 Mbps and uplink 75 Mbps• transfer latency less than 5 m...
Inside
CompetitorWiMAX vs LTEwho is the winner?
WiMAX• IEEE 802.16 standard• up to 141 Mbps downlink and 138 Mbps uplink data transfer rate• mostly use as PC cards or USB...
Comparison                          WiMAX                                    LTEDownlink                                  ...
Problems of LTEAnd solutions
Voice calls• LTE support only packet switching• Voice calls in GSM, UMTS and CDMA2000 are circuit switched
• How can we use regular voice call or SMS on LTE?• How can we refer to handset number on IP-based network?• How can we ha...
Solution (in development)• VoLTE – Voice over LTE   • based on IMS (IP Multimedia Subsystem)   • similar to VoIP• CSFB – C...
Handsets• limited number of handset models are supported• every LTE handsets still very expensive
What’s next
LTE Advanced• scalable system bandwidth up to 100 MHz• support relay node base stations• up to 3.3Gbps peak download rates...
Thank youNow its time for Q&A
Reference• Google
References• http://gsmcommunications.blogspot.com/2011/04/lte-vs-wimax-4g-  comparison.html• http://www.slideshare.net/ham...
Lte introduction
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Lte introduction

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Introduction to LTE technology

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  • NTT DoCoMo is Japanese mobile network operatorTeliaSorena is SwedishLaunched in Oslo and Stockholm
  • more than 110 LTE networks in 41 countries today
  • GSM-based standard is a full duplex, digital, circuit switched networkHSPA has transfer latency of <50 msHSPA+ provides data rates up to 84 Mbit/s in the downlink and 10.8 Mbit/s
  • IEEE 802.16e-2005 is the most popular standardThe latest standard is 802.16m
  • SVLTE – handset will be very expensive and high power consumption
  • How country side people can access this technology?
  • Russian mobile carrier
  • Lte introduction

    1. 1. LTELong Term Evolution – The next generation of telecommunication
    2. 2. Topics• introduction• history• features• competitor -WiMAX• problems of LTE• what’s next
    3. 3. Introduction• next generation of Telecommunication network following the UMTS/HSPA+• the standard is developed by the 3GPP (3rd Generation Partnership Project)
    4. 4. Not 4G
    5. 5. History• first Proposed by NTT DoCoMo in 2004• first publicly launched by TeliaSorena in 2009
    6. 6. Features• IP-based network• peak data transfer rate - downlink 300 Mbps and uplink 75 Mbps• transfer latency less than 5 ms• ability to manage fast-moving mobiles• supports multi-cast and broadcast streams• provide up to 20MHz of spectrum• seamless handover with older network technology (GSM, UMTS, CDMA2000)
    7. 7. Inside
    8. 8. CompetitorWiMAX vs LTEwho is the winner?
    9. 9. WiMAX• IEEE 802.16 standard• up to 141 Mbps downlink and 138 Mbps uplink data transfer rate• mostly use as PC cards or USB dongles• support Peer-to-Peer (ad hoc)
    10. 10. Comparison WiMAX LTEDownlink OFDMAUplink OFDMA SC-FDMAArchitecture All-IP FDD (802.16m)Spectrum FDD and TDD TDDSpectrum flexibility Fixed bandwidth Flexible bandwidthServices/Apps IMS (IP Multimedia Subsystem)Standards IETF 3GPP
    11. 11. Problems of LTEAnd solutions
    12. 12. Voice calls• LTE support only packet switching• Voice calls in GSM, UMTS and CDMA2000 are circuit switched
    13. 13. • How can we use regular voice call or SMS on LTE?• How can we refer to handset number on IP-based network?• How can we handle to continue voice call on 2G/3G when the LTE network disappear?
    14. 14. Solution (in development)• VoLTE – Voice over LTE • based on IMS (IP Multimedia Subsystem) • similar to VoIP• CSFB – Circuit Switched Fallback • LTE provides only data services • fallback to circuit switched when do voice call• SVLTE – Simultaneous Voice and LTE • handset works simultaneously on both LTE and CS • based on handset - no special requirements on the network
    15. 15. Handsets• limited number of handset models are supported• every LTE handsets still very expensive
    16. 16. What’s next
    17. 17. LTE Advanced• scalable system bandwidth up to 100 MHz• support relay node base stations• up to 3.3Gbps peak download rates (with aggregated 100 MHz bandwidth)• Yota is the first carrier to provide commercial LTE Advanced • launched on October 2012 • but no compatible handset available until 2013
    18. 18. Thank youNow its time for Q&A
    19. 19. Reference• Google
    20. 20. References• http://gsmcommunications.blogspot.com/2011/04/lte-vs-wimax-4g- comparison.html• http://www.slideshare.net/hamdani2/lte-long-term-evolution• http://en.wikipedia.org/wiki/LTE_(telecommunication)• http://www.4gamericas.org/index.cfm?fuseaction=page&sectionid=2 49• http://www.pcworld.com/article/259471/

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