Long Term Evolution (LTE) -


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Long Term Evolution (LTE) -

  1. 1. Tinniam V Ganesh tvganesh.85@gmail.com04/01/12 Tinniam V Ganesh - http://gigadom.wordpress.com 1
  2. 2. Market conditions Mobile data is growing at an exponential speed Mobile data in US & Europe expected to grow at a CAGR of 55% & 42% respectively Mobile data revenues expected to grow at a rate of 18% Mobile broadband connections will reach 1 billion by 2012 segmented between 3G & 4G technologiesHighlights• Annual IP traffic will exceed ½ a zettabyte in 4 years by 2012 (10 21)• Internet video (Youtube, DVD sharing ,IPTV) account for 30% of IP traffic• Video communication and dynamic video will increase the burden on the network• Global IP traffic will double every two years to 2010 and beyond04/01/12 Tinniam V Ganesh - http://gigadom.wordpress.com 2
  3. 3. The explosion of mobile dataIn the last 2 years• 1 billion new mobile subscriptions added• 2 billion wireless devices soldDevice range from Mobile phones, Smartphones, Netbooks, PDAs, Wireless dongles and Tablets• Currently there are 3.5 billion subscribers worldwide• 3G accounts for 350 million with 30 million added every quarter• LTE forecast to reach 32.6 million by 201304/01/12 Tinniam V Ganesh - http://gigadom.wordpress.com 3
  4. 4. The rise and rise of data04/01/12 Tinniam V Ganesh - http://gigadom.wordpress.com 4
  5. 5. Growth in data traffic04/01/12 Tinniam V Ganesh - http://gigadom.wordpress.com 5
  6. 6. The birth of LTETo handle the growth in mobile data traffic a feasibility study on theUTRA & UTRAN Long Term Evolution was started in December 2004.The objective was "to develop a framework for the evolution of the 3GPP radio-access technology towards a high-data-rate, low-latency and packet-optimized radio-access technology”In 3GPP Rel 8 the specifications of the EPS (Evolved Packet Core) which consisted of the E-UTRAN (Enhanced UMTS Terrestial Radio Access Network) and EPC (Evolved Packet Core) was created.04/01/12 Tinniam V Ganesh - http://gigadom.wordpress.com 6
  7. 7. Elements of the LTE SystemLTE encompasses the evolution of• Radio access through E-UTRAN (eNodeB)• Non-radio aspects under the term System Architecture Evolution (SAE)Entire system composed of LTE & SAE is called Evolved Packet System (EPS)At a high level a LTE network is composed of• Access network comprised of E-UTRAN• Core Network called Evolved Packet Core (EPC)04/01/12 Tinniam V Ganesh - http://gigadom.wordpress.com 7
  8. 8. LTE Network Elements UE – User Equipment used to connect to the EPS (Evolved Packet System). This is an LTE capable UE The LTE network is comprised of a) Access Network b) Core Network Access network ENB (eNodeB) – The evolved RAN consists of single node, the eNodeB that interfaces with UE. The eNodeB hosts the PHY,MAC, RLC & RRC layers. It handles radio resource management & scheduling. Core Network (Evolved Packet Core-EPC)  MME (Mobility Management Entity) – Performs paging, chooses the SGW during UE attach  S-GW (Serving Gateway) – routes & and forwards user data packets  P-GW (Packet Gateway) – provides connectivity between the UE and the external packet networks.04/01/12 Tinniam V Ganesh - http://gigadom.wordpress.com 8
  9. 9. LTE Network Elements04/01/12 Tinniam V Ganesh - http://gigadom.wordpress.com 9
  10. 10. LTE Network Elements04/01/12 Tinniam V Ganesh - http://gigadom.wordpress.com 10
  11. 11. LTE Technologies LTE uses OFDM (Orthogonal Frequency Division Multiplexing) for lower latency and better spectral efficiency Uses MIMO (Mulitple In Multiple Out) LTE uses several transmit & receive paths reducing interference with increase in spectral efficiency and throughput. Flatter architecture – Fewer Network elements in the LTE Evolved Packet Core(EPC). This results in lower latency because of lesser number of hops as compared to 3G. Absence of RNC like Network Element(NE).04/01/12 Tinniam V Ganesh - http://gigadom.wordpress.com 11
  12. 12. Operator strategies for LTE deploymentVoice & SMS are the main source of revenue for the telecom companies. LTE strategy should be one of the following3. Data only services on LTE4. Data only services on LTE with 2G – 3G voice5. Data service on LTE and IMS based VOIP (VoLTE)6. Voice and data service on LTE (VoLGA)The above 3 strategies are not alternatives but a path for evolution10. Data only option targeted to customers with LTE dongles, netbooks, air cards etc11. Voice will remain a major revenue generator for CSP. LTE for data an 2G- 3G network for voice calls. Operators will need to implement a CS-Fallback option (3GPP 23.272) to support voice on 2G-3G networks. The call will fall back to GSM-UMTS network for voice12. Voice and data service on LTE uses the IMS for voice services and LTE for data. This is based on an all –IP network. On Feb 15,2010 the One Voice was adopted by GSMA as the Voice over LTE (VoLTE). This is an end-to-end LTE ecosystem.04/01/12 Tinniam V Ganesh - http://gigadom.wordpress.com 12
  13. 13. 04/01/12 Tinniam V Ganesh - http://gigadom.wordpress.com 13
  14. 14. 2.5G GPRS Network Elements04/01/12 Tinniam V Ganesh - http://gigadom.wordpress.com 14
  15. 15. LTE Network Elements04/01/12 Tinniam V Ganesh - http://gigadom.wordpress.com 15
  16. 16. LTE & 3G Network Elements04/01/12 Tinniam V Ganesh - http://gigadom.wordpress.com 16
  17. 17. 3.99G (4G) LTE Upto 100 Mbps 2009+04/01/12 Tinniam V Ganesh - http://gigadom.wordpress.com 17
  18. 18. ~100 Mbps LTE 201004/01/12 Tinniam V Ganesh - http://gigadom.wordpress.com 18
  19. 19. The evolution of mobile technology Year Standards Technological evolution 1. 1999 3GPP Rel 99 GSM, GPRS, EDGE, UMTS based (2G, 2.5G, 2.75G, 3G) 2. 2001 3GPP Rel 4 Minor upgrades to UMTS, radio interface 3. 2002 3GPP Rel 5 HSDPA , IMS architecture (3.5G) 4. 2005 3GPP Rel 6 Higher speeds 5. 2007 3GPP Rel 7 HSPA+,PoC, Voice & Video over VOIP 6. 2008 3GPP Rel 8 EPS (E-UTRAN/LTE) (3.99G/4G) 7. 2009 3GPP Rel 9 Enhancement to EPS 8. 2010 3GPP Rel 10 LTE- Advanced (4G)04/01/12 Tinniam V Ganesh - http://gigadom.wordpress.com 19
  20. 20. LTE Development Timeline04/01/12 Tinniam V Ganesh - http://gigadom.wordpress.com 20
  21. 21. Technological Evolution04/01/12 Tinniam V Ganesh - http://gigadom.wordpress.com 21
  22. 22. Evolutionary path for LTE LTE will have to co-exist with the existing technologies like 2G,2.5G & 3G. Operators need to plan LTE deployment in an ecosystem comprising 2G,3G & 4G technologies04/01/12 Tinniam V Ganesh - http://gigadom.wordpress.com 22
  23. 23. Forecasted market share of various technologies04/01/12 Tinniam V Ganesh - http://gigadom.wordpress.com 23
  24. 24. LTE benefits LTE provides download speeds of 100 Mbps downlink and 50Mbps uplink Reduced latency ( <10 ms ) for better user experience LTE has a better spectral efficiency (can squeeze more data) Lower cost per bit (flatter architecture) LTE base station cost is 1/5th of HSPA cost Backwards compatible o Works with GSM/EDGE/UMTS o Utilizes existing 2G, 3G and new spectrum Reduced CAPEX/OPEX via simple architecture In short LTE provides high throughput, low latency , better spectral efficiency and lower cost-per-bit. LTE provides for better QoE (Quality of Experience)04/01/12 Tinniam V Ganesh - http://gigadom.wordpress.com 24
  25. 25. LTE- Faster, Simpler & Cheaper04/01/12 Tinniam V Ganesh - http://gigadom.wordpress.com 25
  26. 26. LTE Benefits 1/3 rd of OpEx is Technical Operations. LTE by virtue of the fact that is a simpler network reduces this cost Operators will upgrade their legacy SONET/ATM based transport to Ethernet/IP based LTE/SAE packet core between 2010 - 201504/01/12 Tinniam V Ganesh - http://gigadom.wordpress.com 26
  27. 27. LTE – Benefits 1. Superior QoE (Quality of Experience) 2. Improved Performance (faster throughput, lower latency 3. Better ROI04/01/12 Tinniam V Ganesh - http://gigadom.wordpress.com 27
  28. 28. LTE ServicesBased on the features of LTE newer an richer services can be provided2. Video services (high throughput)3. Low Latency (Gaming)4. Real time video conferencing (high quality)5. M2M services04/01/12 Tinniam V Ganesh - http://gigadom.wordpress.com 28
  29. 29. LTE devicesSeveral considerations need to taken for LTE devices- Multi-mode (LTE,3G,2G,HSPA etc)- Multi-band (700 Mhz, 800 Mhz,900 Mhz…)- Dual stack (IPv4/IPv6). Migration to LTE implies a transition to IPv6. Greater number of devices will be connected all the time. IPv4 exhaustion is a possibility. There is a need for dual stack (IPv4/IPv6) devices04/01/12 Tinniam V Ganesh - http://gigadom.wordpress.com 29
  30. 30. The future of LTEThe LTE networks for future will consist of many eNodeBs, femto cells and Home eNBs. This will be complex network that will have to monitored and controlled. 3GPP TR 36.902 addresses the issue of Self Optimizing/Self Organizing Network (SON). SONs comprises of 3 key aspects2. Self configuring3. Self optimizing4. Self healing5. LTE- Advanced based on 3GPP Release 1004/01/12 Tinniam V Ganesh - http://gigadom.wordpress.com 30
  31. 31. LTE Deployments worldwide Commercial deployments will happen between 2010 - 2010 US, Europe, Japan are already mature 3G markets. LTE is a natural evolution in these markets Plans for LTE deployments are afoot in the following nations 7.Japan - KDDI, Softbank, NTT Docomo 8.USA - AT&T, Verizon & Telus 9.Australia - Telstra & Optus 10.Europe T-Mobile, Vodafone, Telefonica & FT-Orange Clearwire is planning for LTE deployments India is to rollout 3G in the beginning of 2011. LTE may take a few years to enter India and will be based on the demands on the 3G network04/01/12 Tinniam V Ganesh - http://gigadom.wordpress.com 31
  32. 32. LTE versus its competitors The biggest rival of LTE in the 4G race is WiMAX (Wireless Interoperability for Microwave Access) WiMAX is based of the IEEE 802.16e standard and promises high speed data access WiMAX may be popular in some niche areas However the LTE has a better evolution path as compared to WiMAX. LTE can co-exist with GSM,WCDMA,HSPA networks and provides a smooth ungrade LTA will improve the Total Cost of Ownership (TCO) as compared to HSPA. LTE offers better through, reduced latency and improved spectral efficiency LTE allows reuse of existing site infrastructure like antennas, feeder cables, antenna masts, power supply etc04/01/12 Tinniam V Ganesh - http://gigadom.wordpress.com 32
  33. 33. Players in the LTE fieldAccess – eNodeB, Microcells, Picocells, FemtocellsHuawei, Interphase, Airvana, Fujitsu, Motorola, ALU, TrilliumEnhanced Packet Core (EPC)Alcatel-Lucent, Ericsson, Nokia Siemens, Huawei, Motorola, Trillium04/01/12 Tinniam V Ganesh - http://gigadom.wordpress.com 33
  34. 34. Thank You !!! Tinniam344/1/201204/01/12 V Ganesh tvganesh.85@gmail.com Read my blogs: http://gigadom.wordpress.com/ http://savvydom.wordpress.com/04/01/12 Tinniam V Ganesh - http://gigadom.wordpress.com 34