CDMA Control Channel Traffic Analyzerweb.mit.edu/6.111/www/s2007/PROJECTS/18/Presentation18.pdf ·...

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CDMA Control Channel Traffic Analyzer

Transcript of CDMA Control Channel Traffic Analyzerweb.mit.edu/6.111/www/s2007/PROJECTS/18/Presentation18.pdf ·...

Page 1: CDMA Control Channel Traffic Analyzerweb.mit.edu/6.111/www/s2007/PROJECTS/18/Presentation18.pdf · 2007-04-27 · Computer Interface • High Speed USB->UART converter chip for communications

CDMA Control Channel Traffic Analyzer

Page 2: CDMA Control Channel Traffic Analyzerweb.mit.edu/6.111/www/s2007/PROJECTS/18/Presentation18.pdf · 2007-04-27 · Computer Interface • High Speed USB->UART converter chip for communications
Page 3: CDMA Control Channel Traffic Analyzerweb.mit.edu/6.111/www/s2007/PROJECTS/18/Presentation18.pdf · 2007-04-27 · Computer Interface • High Speed USB->UART converter chip for communications

1) Tune Radio2) Listen to Pilot Channel3) Listen to Synchronization Channel4) Transmit Sync data via RS2325) Listen to Paging Channel6) Transmit Paging data to PC

The Big Picture

Page 4: CDMA Control Channel Traffic Analyzerweb.mit.edu/6.111/www/s2007/PROJECTS/18/Presentation18.pdf · 2007-04-27 · Computer Interface • High Speed USB->UART converter chip for communications
Page 5: CDMA Control Channel Traffic Analyzerweb.mit.edu/6.111/www/s2007/PROJECTS/18/Presentation18.pdf · 2007-04-27 · Computer Interface • High Speed USB->UART converter chip for communications

Main Control Unit

Page 6: CDMA Control Channel Traffic Analyzerweb.mit.edu/6.111/www/s2007/PROJECTS/18/Presentation18.pdf · 2007-04-27 · Computer Interface • High Speed USB->UART converter chip for communications
Page 7: CDMA Control Channel Traffic Analyzerweb.mit.edu/6.111/www/s2007/PROJECTS/18/Presentation18.pdf · 2007-04-27 · Computer Interface • High Speed USB->UART converter chip for communications

Computer Interface

• High Speed USB->UART converter chip for communications between the FPGA and PC

• Each control unit will have access to talk to host PC

• Software written in Python will interface with the USRP to set center frequency

• USRP transmits I/Q data to PC, which then forwards it to the FPGA

Page 8: CDMA Control Channel Traffic Analyzerweb.mit.edu/6.111/www/s2007/PROJECTS/18/Presentation18.pdf · 2007-04-27 · Computer Interface • High Speed USB->UART converter chip for communications

Pilot Channel

Page 9: CDMA Control Channel Traffic Analyzerweb.mit.edu/6.111/www/s2007/PROJECTS/18/Presentation18.pdf · 2007-04-27 · Computer Interface • High Speed USB->UART converter chip for communications

Synchronization Channel

Page 10: CDMA Control Channel Traffic Analyzerweb.mit.edu/6.111/www/s2007/PROJECTS/18/Presentation18.pdf · 2007-04-27 · Computer Interface • High Speed USB->UART converter chip for communications

Paging Channel

Page 11: CDMA Control Channel Traffic Analyzerweb.mit.edu/6.111/www/s2007/PROJECTS/18/Presentation18.pdf · 2007-04-27 · Computer Interface • High Speed USB->UART converter chip for communications

and perhaps in the future…Full-duplex voice conversations