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Mymo wireless presentation_30_jul'10
Mymo wireless presentation_30_jul'10
Mymo wireless presentation_30_jul'10
Mymo wireless presentation_30_jul'10
Mymo wireless presentation_30_jul'10
Mymo wireless presentation_30_jul'10
Mymo wireless presentation_30_jul'10
Mymo wireless presentation_30_jul'10
Mymo wireless presentation_30_jul'10
Mymo wireless presentation_30_jul'10
Mymo wireless presentation_30_jul'10
Mymo wireless presentation_30_jul'10
Mymo wireless presentation_30_jul'10
Mymo wireless presentation_30_jul'10
Mymo wireless presentation_30_jul'10
Mymo wireless presentation_30_jul'10
Mymo wireless presentation_30_jul'10
Mymo wireless presentation_30_jul'10
Mymo wireless presentation_30_jul'10
Mymo wireless presentation_30_jul'10
Mymo wireless presentation_30_jul'10
Mymo wireless presentation_30_jul'10
Mymo wireless presentation_30_jul'10
Mymo wireless presentation_30_jul'10
Mymo wireless presentation_30_jul'10
Mymo wireless presentation_30_jul'10
Mymo wireless presentation_30_jul'10
Mymo wireless presentation_30_jul'10
Mymo wireless presentation_30_jul'10
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Mymo wireless presentation_30_jul'10

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  • 1. 4 th Generation Wireless Systems Focus on 3GPP LTE Dr. Sondur Lakshmipathi MYMO Wireless Technology Pvt Ltd Entrepreneurship Center Indian Institute of Science Bangalore 30 Sept 2010
  • 2. Agenda <ul><li>KEY DRIVERS FOR THE 4G TECHNOLOGIES </li></ul><ul><li>3GPP LTE: AN EMERGING 4G STANDARD </li></ul><ul><li>KEY TECHNOLOGIES FOR LTE </li></ul>
  • 3. KEY DRIVERS FOR THE 4G TECHNOLOGIES
  • 4. Cellular Evolution: GSM Phones Enhancing to IP Based LTE <ul><li>Phenomenal growth of cellular users across globe </li></ul><ul><ul><li>GSM Global coverage is 80% </li></ul></ul><ul><ul><li>Spread across 219 countries and 750 Operators around the globe </li></ul></ul><ul><ul><li>In India alone, 500 Million cell phone users presently – TOI , Dec’09 </li></ul></ul><ul><ul><li>In-Stat surveys show 3 out of 5 users prefer handheld phones with one-stop communications  LTE will be the one stop solutions device </li></ul></ul><ul><ul><li>LTE being standardized as Advanced GSM  Huge Mkt opportunities </li></ul></ul>3GPP LTE* is the natural successor to GSM *Third Generation Partnership Project (3GPP)
  • 5. Cellular Evolution: (contd..) GSM Phones Enhancing to IP Based LTE <ul><li>We are at the beginning of a new revolution of 3G & 4G communications </li></ul><ul><ul><li>More than 80% of cellular operators are adopting LTE </li></ul></ul><ul><ul><li>Emergence of new Competitive & Complementary wireless with unbelievable speeds and quality – WiFi, WHD exceed 100Mbps </li></ul></ul><ul><ul><li>Voice-service by cellular networks is transforming to totally IP-based networks through LTE </li></ul></ul><ul><li>LTE Mobile Broadband to Generate $70 Billion in Revenues Within 5 Years - Juniper Research, 31 Mar’10 </li></ul>
  • 6. Business drivers: Evolution of new cellular standard <ul><li>Phenomenal growth of cellular users across globe </li></ul><ul><ul><li>In India crosses 500M cell phone users </li></ul></ul><ul><ul><li>Worldwide 3 billion users </li></ul></ul>
  • 7. 1G 2G 3.5G 3G <ul><li>Analog </li></ul><ul><li>Cellular </li></ul><ul><li>Voice </li></ul><ul><li>AMPS </li></ul><ul><li>TACS </li></ul><ul><li>GSM,CDMA </li></ul><ul><li>Voice </li></ul><ul><li>Pager </li></ul><ul><li>10kbps data </li></ul><ul><li>TDMA/CDMA </li></ul><ul><li>eHSPA, EVDO </li></ul><ul><li>Voice/Video </li></ul><ul><li>Email/Web </li></ul><ul><li>10Mbps data </li></ul><ul><li>TDMA/CDMA </li></ul><ul><li>LTE </li></ul><ul><li>Voice over IP </li></ul><ul><li>Video over IP </li></ul><ul><li>Email/Web </li></ul><ul><li>DVB, Multimedia </li></ul><ul><li>100 Mbps data </li></ul><ul><li>MIMO-OFDM </li></ul>4G <ul><li>LTE++ </li></ul><ul><li>Voice over IP </li></ul><ul><li>Video over IP </li></ul><ul><li>Email/Web </li></ul><ul><li>DVB, Multimedia </li></ul><ul><li>1 Gbps data </li></ul><ul><li>MIMO-OFDM </li></ul>2G 3.5G 3G <ul><li>IEEE 802.11b </li></ul><ul><li>Email/Web </li></ul><ul><li>11Mbps data </li></ul><ul><li>CSMA-CA </li></ul><ul><li>CCK </li></ul><ul><li>IEEE 802.11g,a </li></ul><ul><li>Voice over IP </li></ul><ul><li>Video over IP </li></ul><ul><li>Email/Web </li></ul><ul><li>54 Mbps data </li></ul><ul><li>CSMA-CA </li></ul><ul><li>OFDM </li></ul><ul><li>IEEE 802.11n </li></ul><ul><li>Voice over IP </li></ul><ul><li>Video over IP </li></ul><ul><li>Email/Web </li></ul><ul><li>600 Mbps data </li></ul><ul><li>CSMA-CA </li></ul><ul><li>MIMO-FODM </li></ul>4G <ul><li>IEEE 802.11VHT </li></ul><ul><li>HDTV, OH Projector </li></ul><ul><li>Voice.Video over IP </li></ul><ul><li>Email/Web </li></ul><ul><li>1.2 Gbps data </li></ul><ul><li>CSMA-CA </li></ul><ul><li>MIMO-FODM </li></ul>WiFi Evolution Cellular Evolution 1980 1994-98 2008-09 2010-11 2012-14 Cellular & WiFi: The two most successful technologies that hold great promise for future markets Cellular & WiFi: Two Decades of Phenomenal Growth
  • 8. Emerging 3G and 4G Standards <ul><li>Application Segments </li></ul><ul><ul><li>Voice, Video, Data, Multimedia Broadcast </li></ul></ul><ul><li>Differentiation </li></ul><ul><ul><li>Low Power & Low Gate Count , Small Form Factor, High Performance </li></ul></ul><ul><ul><li>Innovative solutions </li></ul></ul>WiFi IEEE 802.11n 600 Mbps IEEE 802.11vht 1.2 Gbps WIMAX IEEE 802.16e 72 Mbps IEEE 802.16m 100+ Mbps 3gpp LTE 3gpp LTE 100 Mbps 3gpp LTE+ 180 Mbps WirelessHD Ver1.0 4 Gbps Ver2.0 25 Gbps UWB MBOA 480 Mbps IEEE 802.15.3a+ 1 Gbps Technology Emerging 3G 2008-2010 Future 4G Stds 2011-2014 NFC RFID Smart Cards NFC & WSN Combos WCDMA EVDO UMB 1 Gbps
  • 9. 3GPP LTE: EMERGING 4G STANDARD
  • 10. <ul><li>What is 3GPP LTE? Why is 3GPP LTE? </li></ul><ul><ul><li>A flat all IP-architecture with an air-interface that exploits latest advances in communications like SC-FDMA, OFDMA and MIMO. </li></ul></ul><ul><ul><li>A next-generation enhancement to GSM and CDMA </li></ul></ul>
  • 11. LTE Uplink uses Multi-User MIMO, which pairs-up UEs to share the same UL resource to increase cell Throughput At any given instant, cell’s spectral resource is shared between all active users Multi Users per Cell: Active, Idle and MU-MIMO modes
  • 12. Great Scope for LTE Technology Innovations: Cooperative Communications WiFi 2.4GHz LTE 2.7GHz LTE Tx-Rx in SISO/MIMO WiFi Tx-Rx in SISO/MIMO LTE SISO WiFi SISO Connectivity to WiFi and LTE in SISO/MIMO mode NB non-LTE WiLTE HH Phone LTE BS WiFi Connectivity to Notebook and LTE BS WiLTE Phone WiFi Access Point LTE BS Switching b/w AP or LTE BS
  • 13. Global Commitments on LTE March, 2009 Compilation: List compiled from Informa Telecoms & Media and public announcements. It includes a variety of commitment levels including intentions to trial, deploy, migrate, etc. For additional information contact info@3gamericas.org http://www.3gamericas.org/documents/LTE%20Commitments%20Mar%202009.pdf
  • 14. Global Commitments on LTE (contd..) http://www.3gamericas.org/documents/LTE%20Commitments%20Mar%202009.pdf
  • 15. MYMO LTE IP & PRODUCTS
  • 16. About MYMO Wireless Technology Pvt Ltd
  • 17. MW1000 : Test Engineers Delight RF Unit GPS 10MHz ANT ANT Ref Clk 1 PPS MW1000 Desktop CPU eNodeB R R H DL & UL Results
  • 18. MW1000 : Wave Capture eNodeB R R H RF Unit GPS 10MHz ANT ANT Ref Clk 1 PPS MW1000 Desktop CPU LTE UE eNodeB DL UE RACH REQ Splitter Splitter Splitter
  • 19.
  • 20.
  • 21. Differentiating Factors State-of-the-art algorithm Designs Patented methods & algorithms for low power and gate count Seamlessly integrated & partitioned code for HW: PHY-MAC-RLC-PDCP-RRC Meeting real-time latency constraints as per UE Specs on Quadcore Pentium Fully verified by 3 rd party test tools RTL Build for SoC/ ASIC Highly optimized soft IP
  • 22. MYMO Wireless Confidential DST-Lockheed Martin Gold Medal 2009 NASSCOM-2009 Top 6 Finalists Award
  • 23. KEY TECHNOLOGIES FOR LTE
  • 24. OFDM: Orthogonal Frequency Division Multiplexing <ul><li>Illumination by single light </li></ul><ul><li>Illumination not uniform in all corners of a hall </li></ul><ul><li>Break down of bulb  complete loss of light </li></ul><ul><li>Illumination by many small light </li></ul><ul><li>Illumination is uniform in all points of a hall </li></ul><ul><li>Break down of a bulb  continue illumination by other lights </li></ul>Equal Power P 1 P 2 P 3 P 4 P 5 P 6 P 7 P 8 P 9 P P = P 1 +P 2 +P 3 +P 4 +P 5 +P 6 +P 7 +P 8 f c f c f c + Δ f f c +2 Δ f F c - Δ f F c -2 Δ f Single Carrier Modulation Multi-carrier Modulation Equal Power
  • 25. Fading Channel Performance Comparison: Single Carrier and OFDM Direct path Multipath Multipath Fading Affects spectrum of Single Carrier Modulation f  Fading Affecting Multi-carrier Modulation c c f 
  • 26. OFDMA: Multiplexing of Multi User OFDM Signals User 1 Channel freq response User 2 Channel freq response <ul><li>For User-1 and User-2 </li></ul><ul><li>subcarriers are selected </li></ul><ul><li>with better SNR. </li></ul><ul><li>Then User-1 and User-2 </li></ul><ul><li>subcarriers are Multiplexed </li></ul><ul><li>forming the OFDMA signal </li></ul><ul><li>In LTE Channel Quality </li></ul><ul><li>Indicator (CQI) is used to </li></ul><ul><li>select the subcarriers by </li></ul><ul><li>eNodeB </li></ul>User 1 & User 2 subcarriers multiplexed
  • 27. Frequency domain Time domain Time domain SC-FDMA Transmitter at the User Equipment SC-FDMA Receiver at the eNodeB Up Link: SC-FDMA Transmitter and Receiver + BRP = Bit Rate Processing QAM Mapping Resource Allocation M Point DFT Map Mapping to Subcarriers Perform N-point IFFT Add CP; N>M RF Up Conversion QAM De-Mapping Resource Demux M Point DFT Map Mapping to Subcarriers Perform N-point IFFT Add CP; N>M RF Down Conversion BRP Transform Precoding OFDM Data & Control M A C BRP M A C
  • 28. Code Block Segmentation Channel Coding Rate Matching Code Block Concatenation Circular Buffering MAC Logic Channel Transport Channels Code Word-0 Code Word-1 Scrambling QAM Map QPSK 16QAM 64QAM Scrambling QAM Map QPSK 16QAM 64QAM Layer Mapper Tx Div: CDD SFBC Beamform Precoding 2x2 MIMO Precoding Subcarrier Mapper Subcarrier Mapper OFDM OFDM Down Link: OFDMA 2x2 MIMO Transmitter Bit Rate Processing RF
  • 29. THANK YOU Q & A

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