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
1. LTELong Term Evolution – The next generation of telecommunication
2. Topics• introduction• history• features• competitor -WiMAX• problems of LTE• what’s next
3. Introduction• next generation of Telecommunication network following the UMTS/HSPA+• the standard is developed by the 3GPP (3rd Generation Partnership Project)
4. Not 4G
5. History• first Proposed by NTT DoCoMo in 2004• first publicly launched by TeliaSorena in 2009
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)
8. CompetitorWiMAX vs LTEwho is the winner?
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)
12. Voice calls• LTE support only packet switching• Voice calls in GSM, UMTS and CDMA2000 are circuit switched
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. 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. Handsets• limited number of handset models are supported• every LTE handsets still very expensive
16. What’s next
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