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OsmoDevCon smart radio software March 2012 UmTRX – a hardware for GSM base station Alexander Chemeris Presentation plan 1. What is UmTRX? 2. Technical details Alexander Chemeris twitter: @chemeris e-mail: [email protected] UmTRX A transceiver for • low-cost, • mid-range, • power-efficient GSM base station (not a femtocell) Alexander Chemeris twitter: @chemeris e-mail: [email protected] Open-Source Hardware • Editable design files are published • You're allowed to o distribute, o modify, o manufacture. Alexander Chemeris twitter: @chemeris e-mail: [email protected] Purpose and users • Small/tiny carriers • Developing regions • Rural and isolated areas … to avoid competition with Big Guys Alexander Chemeris twitter: @chemeris e-mail: [email protected] Presentation plan 1. What is UmTRX? 2. Technical details Alexander Chemeris twitter: @chemeris e-mail: [email protected] UmTRX architecture Ref. Clock GPS EB230 Power control SPI UART control 1 PPS TCXO 26 MHz GPIO Rx switch LMS6002D Tx duplexer +LNA+PA GPIO 1GigE FPGA Xilinx Spartan 6 LX75 LMS6002D Tx switch duplexer +LNA+PA SRAM Flash Alexander Chemeris Rx twitter: @chemeris e-mail: [email protected] UmTRX specification • Dual TRX 15 voice channels cheap Power Amplifiers diversity receive • GPS-locked clock no maintenance no costly OCXO • 5.25" form-factor many enclosures fits into CD-ROM slot • 3mW output power standard for BTS amplifies to any value • Ethernet connection Alexander Chemeris standard reliable twitter: @chemeris e-mail: [email protected] LMS6002D › › › › › Single chip transceiver 375MHz-4GHz. Programmable bandwidth: 1.5-28MHz 12-bit ADC and DAC Tx RF output +6dBm, continuous wave and NDA :) Alexander Chemeris twitter: @chemeris e-mail: [email protected] Modified UHD firmware & software Works with • OpenBTS • OpenBSC (soon? ) • GnuRadio Alexander Chemeris twitter: @chemeris e-mail: [email protected] UmTRX Q&A Alexander Chemeris twitter: @chemeris e-mail: [email protected] smart radio software Alexander Chemeris [email protected] +7 (915) 330-7626 skype: Alexander.Chemeris twitter: @chemeris Mayotte project Coordinates 12 50 S, 45 10 E Square kilometers of land 374 square kilometers Target low-cost GSM network affordable communications Population 200,000* uses open-technology Telephone lines 5.2 per 100 people* hack & learn Mobile cellular subscriptions 28.0 per 100 people* * information of World Bank, 2009 Alexander Chemeris twitter: @chemeris e-mail: [email protected] About Fairwaves LLC • • • • • • Moscow based company, founded in Jan 2011. Focuses on development of cost-effective mobile access solutions. Provides software and hardware development services in the area of SDR. Owns world-leading IP in LDPC error-correcting codes, smart antenna systems and wavelet filtering of RF signals. Alexander Chemeris, CEO, holds Master degree in Computer Science and during last 6 years was involved in various projects on VoIP, videoconferencing and wireless technologies as senior engineer, project manager and consultant, including many open-source projects. Prof. Dr. Sergey Portnoy, Chairman of the Board, received doctoral degree in 1992 for his achievements in cascaded modulation and coding schemes, nowadays known as OFDM. For the last 20 years he has been building wireless networks and promoting wireless access in Russia. At this moment he holds positions of WiMAX Forum Regional Director, Chairman of the board of ZAO Cedicom (equipment distribution), VP Strategy of ZAO Antares (emerging LTE operator). Alexander Chemeris twitter: @chemeris e-mail: [email protected]