fairwaves umtrx - gnu radio conference 2013 presentation
TRANSCRIPT
Alexander ChemerisCEO, fairwaves LLC
GSM re-invented
UmTRXThe SDR transceiver for GSM
(and LTE?)
Alexander Chemeris twitter: @chemeris e-mail: [email protected]
UmTRX
SDR transceiver for• low-cost,• mid-range,• power-efficientbase stations
And everything else :)
Alexander Chemeris twitter: @chemeris e-mail: [email protected]
UmTRX architecture
Alexander Chemeris twitter: @chemeris e-mail: [email protected]
UmTRX technical details
• Channels: 2• Tuning: 375MHz-2.8 GHz• Bandwidth: 13 MHz• Low-pass filter: 1.5-28 MHz• ADC and DAC: 12-bit• Output RF power: 100 mW @ 900MHz
50 mW @ 1800MHz• Input voltage: 8-28 V DC
Alexander Chemeris twitter: @chemeris e-mail: [email protected]
UmTRX highlights
• Dual TRX
• GPS-locked clock
• 5.25" form-factor
• 100 mW output power
• Ethernet connection
MIMOindependent channels
no maintenanceno expensive OCXO
many enclosuresfits into CD-ROM slot
standard for BTSamplifies to any value
standardreliable
Alexander Chemeris twitter: @chemeris e-mail: [email protected]
Modified UHD firmware & software
Out of the box support for:
• GnuRadio
• OpenBTS
• OpenBSC
Alexander Chemeris twitter: @chemeris e-mail: [email protected]
UmTRX DIY hardware
Bare board 5.25” tray
Alexander Chemeris twitter: @chemeris e-mail: [email protected]
UmTRX based base stations
DesktopRack mount
Outdoor
GSM re-inventedAlexander Chemeris
[email protected]+7 (915) 330-7626
skype: Alexander.Chemeristwitter: @chemeris