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29c3 OpenBTS workshop - Hardware and sotware


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29c3 OpenBTS workshop - Hardware and sotware

  1. 1. OpenBTS:hardware and software
  2. 2. Hardware: RF● Antenna● Power Amplifier● LNA Off the shelf● Duplexer (mostly)● Cables● CPU unit● Transceiver Special!
  3. 3. Hardware optionsDIY from parts
  4. 4. OpenBTS hardware:DIY style for lab usage
  5. 5. Hardware: CPU unit● X86 – Atom D2700 handles 2-3 ARFCN – Core 2 Duo handles ~5 ARFCN● ARM – Low performance: ~ 1/2 ARFCN – Newer ARMs are promising● PowerPC
  6. 6. Hardware: Transceiver USRP 1 / N2x0 / B100 (original hardware) UmTRX(coming soon)
  7. 7. Hardware: AntennaAny small antenna.Sometimes works evenwithout an antenna
  8. 8. Hardware: booster You dont need this for bench-top usage.
  9. 9. OpenBTS hardware:DIY style for real usage
  10. 10. Left as an exercise for a reader.
  11. 11. Seriously speaking, Do NOT try to run a DIYOpenBTS setup at high power unless you have YEARS of experience!
  12. 12. OpenBTS hardware: for real usage
  13. 13. Range Networks Development Kit5150 Series Snap Network
  14. 14. Range Networks● Output power: 100mW – 50W● Multi-ARFCN capable● Temperature Tested 2U enclosure● Industrial-grade Intel Atom CPU board
  15. 15. Fairwaves
  16. 16. Fairwaves● Output power: 100mW – 10W● Multi-ARFCN capable● Intel Atom based● Indoors and outdoors coming soon...
  17. 17. Software
  18. 18. Software versions● Recent version: 2.8● Dont use earlier versions!
  19. 19. Software versions● Recent version: 2.8● Dont use earlier versions!● Official subversion: svn co● Fairwaves github:● Personal features branches Check wiki!
  20. 20. Useful links● Official wiki● Old wiki OpenBTS● Range Networks● Fairwaves