UMTS (General Mobile systems and protocols)(.ppt)

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  • ## * * 07/16/96
  • UMTS (General Mobile systems and protocols)(.ppt)

    1. 1. UMTS Digital Cellular Technology Amit Mahajan
    2. 2. UMTS The Digital Cellular Technology
    3. 3. Global System For Mobile Communication <ul><li>More Than 110 Million Subscribers </li></ul><ul><li>More Than 200 Countries </li></ul><ul><li>Combination Of TDMA & FDMA </li></ul><ul><li>Current Data Rate 9.6kbps </li></ul><ul><li>By 2000 2 Mbps </li></ul><ul><li>By 2010 200 Mbps </li></ul>
    4. 4. What Is GSM ??? <ul><li>Digital Cellular Radio Network </li></ul><ul><li>Data ,Fax, e-mails, Internet, S.M.S </li></ul><ul><li>Uses R.F. </li></ul><ul><li>3 Frequency Ranges 900,1800,1900 MHz. </li></ul><ul><li>Wireless </li></ul><ul><li>Roaming Facility (one phone #) </li></ul>
    5. 5. When & Why it Started ?? <ul><li>1982 Group Special Mobile </li></ul><ul><li>1989 ETSI </li></ul><ul><li>Phase 1 1990 </li></ul><ul><li>Commercial Launch Mid 1991 </li></ul><ul><li>Compatibility </li></ul><ul><li>Limited Market </li></ul><ul><li>Economies Of Scale </li></ul>
    6. 6. Evolution Of GSM Phase 1 <ul><li>Features: </li></ul><ul><li>Call forwarding </li></ul><ul><li>Call Barring ( incoming & outgoing) </li></ul><ul><li>Global Roaming </li></ul>
    7. 7. Phase 2 <ul><li>Features: </li></ul><ul><li>SMS </li></ul><ul><li>Multi party calling </li></ul><ul><li>Call holding, Cell Broadcasting </li></ul><ul><li>Call waiting, Calling party identity </li></ul><ul><li>Advise of charge </li></ul><ul><li>Data services </li></ul><ul><li>Fax services </li></ul>
    8. 8. Phase 2 + <ul><li>Features: </li></ul><ul><li>Available in 1998 </li></ul><ul><li>Packet Switching at 64Kbps </li></ul><ul><li>SIM enhancements </li></ul><ul><li>OMCR upgradation </li></ul><ul><li>OMCS upgradation </li></ul>
    9. 9. Terminologies in GSM N/W
    10. 10. MS SIM BTS BTS BSC BSC MSC HLR VLR EIR AUC PSTN Mobile Station Base Station Subsystem Network Subsystem Architecture
    11. 11. Terminologies <ul><li>MS ( Mobile Handset) </li></ul><ul><li>BTS (Base Transreceiver Station) </li></ul><ul><li>BSC (Base Station Controller) </li></ul><ul><li>MSC (Mobile Switching Center) </li></ul><ul><li>EIR (Equipment Identity Register) </li></ul><ul><li>HLR (Home Location Register) </li></ul><ul><li>VLR (Visitor Location Register) </li></ul>
    12. 12. Mobile Station <ul><li>MS ( Mobile Handset) </li></ul><ul><li>SIM (Subsciber Identity Module) </li></ul><ul><li>IMSI </li></ul><ul><li>(Country code+N/W code+Sub. No.) </li></ul><ul><li>TMSI </li></ul><ul><li>IMEI </li></ul>
    13. 13. Mobile Station <ul><li>MS ( Mobile Handset) </li></ul><ul><li>SIM (Subsciber Identity Module) </li></ul><ul><li>Battery </li></ul><ul><li>Antenna </li></ul>
    14. 14. S I M Card Subscriber Identity Module
    15. 15. Mobile Station <ul><li>IMEI: </li></ul><ul><li>International Mobile Equipment Identity </li></ul><ul><li>Unique Number </li></ul><ul><li>15 digits ( TAC, FAC) </li></ul>
    16. 16. Mobile Call Set UP <ul><li>Power on </li></ul><ul><li>BCCH,RACH,SDCCH,PCH,AGCH,TCH </li></ul><ul><li>Authentication </li></ul><ul><li>Channel allocation </li></ul><ul><li>Ciphering mode </li></ul><ul><li>FACCH, SACCH for Handoffs </li></ul>
    17. 17. Base Station Subsystem <ul><li>BTS </li></ul><ul><li>Cells </li></ul><ul><li>MS communicates with BTS </li></ul><ul><li>Power control </li></ul><ul><li>Sectors </li></ul><ul><li>Different Antenna types & orientations </li></ul><ul><li>BCCH, NBCCH, Channel Allocation </li></ul>
    18. 18. BTS Base Transreceive Station
    19. 19. What’s Inside BTS??? Base Transreceive Station
    20. 20. Microcell City Future BTS
    21. 21. Base Station Subsystem <ul><li>BSC </li></ul><ul><li>10-40 BTS connected to BSC </li></ul><ul><li>Frequency Hopping </li></ul><ul><li>Handovers </li></ul><ul><li>Inter or Intra BTS </li></ul><ul><li>Inter or Intra BSC </li></ul><ul><li>Inter or Intra MSC </li></ul>
    22. 22. Network Subsystem <ul><li>MSC ( Heart Of GSM ) </li></ul><ul><li>HLR </li></ul><ul><li>VLR </li></ul><ul><li>AUC </li></ul><ul><li>EIR </li></ul><ul><li>BSC connected to MSC </li></ul><ul><li>Call routing </li></ul>
    23. 23. Email, Fax GSM Phone
    24. 24. Coverage & Power
    25. 25. Coverage & Power <ul><li>35 Kms </li></ul><ul><li>Scenarios: </li></ul><ul><li>Urban </li></ul><ul><li>Semiurban </li></ul><ul><li>Rural </li></ul><ul><li>20 Watt, 8 Watt, 2 Watt, 5 Watt </li></ul><ul><li>Interference </li></ul>
    26. 26. Coverage In USA
    27. 27. 60 deg. 180 deg. 300 deg. Sectored BTS
    28. 28. Frequency Planning <ul><li>Available channels </li></ul><ul><li>Coverage objectives </li></ul><ul><li>Exclusive Channels </li></ul><ul><li>Frequency Reuse: </li></ul><ul><li>4 Cell reuse </li></ul><ul><li>7 Cell reuse </li></ul><ul><li>One, Two or Three sector site </li></ul>
    29. 29. Different Cells & Repeaters <ul><li>Micro cells </li></ul><ul><li>Pico cells </li></ul><ul><li>Indoor repeaters </li></ul><ul><li>Outdoor repeaters </li></ul>
    30. 30. Types Of Repeaters <ul><li>Channel Select: </li></ul><ul><li>2 Watt (33dbm) </li></ul><ul><li>Bandselect: </li></ul><ul><li>200mwatt (23dbm) </li></ul><ul><li>Low power repeater: </li></ul><ul><li>2 mwatt (13dbm) </li></ul>
    31. 31. Comparison of 3 Digital Technologies <ul><li>GSM: TDMA </li></ul><ul><li>100 million Subscriber </li></ul><ul><li>900 Mhz, 1.8Ghz, 1.9 Ghz </li></ul><ul><li>Channel B/W 200 Khz </li></ul><ul><li>Good voice quality </li></ul><ul><li>Data rate 9.6 Kbps till 1997/98 </li></ul><ul><li>Currently 38.4Kbps,115Kbps by 2000 </li></ul>
    32. 32. Comparison of 3 Digital Technologies <ul><li>CDMA: </li></ul><ul><li>3 Million Subscriber(1997) </li></ul><ul><li>800 Mhz, 1.9 Ghz </li></ul><ul><li>Channel Bandwidth 1250 Khz </li></ul><ul><li>Very high voice quality </li></ul><ul><li>Data rate 9.6 Kbps - 14.4 Kbps </li></ul><ul><li>Roaming Limited, Strong potential </li></ul>
    33. 33. Comparison of 3 Digital Technologies <ul><li>D-AMPS: </li></ul><ul><li>4 million Subscriber(1997) </li></ul><ul><li>800 Mhz , 1.8Ghz </li></ul><ul><li>Channel B/W 300 Khz </li></ul><ul><li>Acceptable voice quality </li></ul><ul><li>Data rate 9.6 Kbps in 1998 </li></ul>
    34. 34. Comparison of GSM & PCS <ul><li>GSM: </li></ul><ul><li>1) 900 Mhz, 1800 Mhz </li></ul><ul><li>2) Europe,Asia,France,Germany,UK </li></ul><ul><li>PCS(Personal Communication Services) </li></ul><ul><li>1) 1900 Mhz </li></ul><ul><li>2) USA, Canada </li></ul>
    35. 35. Future GSM
    36. 36. Third Generation GSM <ul><li>UMTS </li></ul><ul><li>W-CDMA + Hybrid TD-CDMA </li></ul><ul><li>Phase 1 </li></ul><ul><li>2 Mbps ( 2002/2003) </li></ul><ul><li>Phase 2 </li></ul><ul><li>100 Mbps (2010) </li></ul><ul><li>Frequency range: 2 Ghz </li></ul>
    37. 37. Dual-band & tri-Band phones <ul><li>Dual - band: </li></ul><ul><li>Both in 900-1800 Mhz n/w of Europe </li></ul><ul><li>Also in 900-1900 Mhz n/w in USA </li></ul><ul><li>Ericsson, Motorola, Siemens </li></ul><ul><li>Tri-band: </li></ul><ul><li>All the three bands </li></ul><ul><li>TDMA - CDMA compatible phones </li></ul>
    38. 38. Satellite phones <ul><li>Irridium </li></ul>
    39. 39. Packet Switched <ul><li>3rd generation networks </li></ul><ul><li>Channel occupancy </li></ul><ul><li>Channel utilization </li></ul><ul><li>Frame relay </li></ul>
    40. 40. Thank You !!! Amit Mahajan Sharmila Pradhan

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