Field-programmable RF

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The field-programmable RF (FPRF) is a class of radio frequency transceiver microchip that mimics the concept of an FPGA (field programmable gate array) in the radio frequency domain to deliver a multi-standard, multi frequency device.

Contents

The earliest use of the term comes from Wireless Design Mag [1] and it has subsequently been used by a wide range of electronics trade magazines to describe the emerging class of multi frequency and multi standard flexible RF chips.

History

The term was coined by the US trade title Wireless Design Mag to describe an emerging class of highly flexible transceivers. It has since been used by a range of English-language electronics and telecoms trade journals across the globe, including EE Times Asia, [2] Electronics Weekly [3] (UK), Digitimes (Taiwan), EE Times [4] (US), and Light Reading [5] (UK / US)

The device enabled telecommunications equipment manufacturers to cope with the lack of universal communication standards and frequencies. Existing limitations meant very few countries' telecommunications regulators adopted the same standard or bandwidth, this either required multi-band (such as tri-band phones) equipment that could be used in many countries or reduced the scales of economy that manufacturers could benefit from. The multi-standard, multi-frequency traits of the FPRF enabled a single design to be configured using software.

Devices with this new functionality were first demonstrated in late 2007 and early 2008. One of the first such devices was Lime Microsystems microTCA Broadband transceiver, [6] demonstrated at Mobile World Congress in February 2008. This had a frequency range of 350MHz to 4GHz and was suited to WiMax. FPRF designs have subsequently emerged from a range of companies and, to date, the most flexible FPRF currently on the market delivers 300 MHz to 3.8 GHz [7] and allows operation on a range of standards, including FDD-LTE, TDD-LTE, W-CDMA, CDMA-2000 and HSDPA+ and WiMAX.

Adoption

Communications equipment

Field Programmable RF technology has been adopted by a number of companies for a diverse range of projects. These include:

Open source

A number of open-source platforms have been developed using FPRF chips. Three significant open-source hardware project launches using FPRF technology took place in 2013.

Fairwaves launched what it describes as the "first industrial-grade open-source base station [14] " on Hardware Freedom Day, April 2013.

This was preceded by the Myriad RF project, [15] which was launched in beta mode in March 2013 as a "non-profit initiative... [aiming] to give both hobbyists and experienced design engineers a range of low-cost RF boards and free design files available for general use."

A third open-source FPRF project has been announced on the social funding platform Kickstarter. Nuand announced it was looking for $100,000 funding for its BladeRF [13] platform on January 19, 2013, and raised nearly double ($191,422) its target in the 30-day fundraising cycle.

Citations

In 2011 a board using FPRF technology to deliver MIMO (multi-in, multi-out) technology was cited in the European Union / Seventh Framework Programme's radio optimization roadmap, Acropolis. [16] The project seeks to establish the key technologies for future software defined and cognitive radio systems.

See also

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References

  1. ↑ None given (February 20, 2013). "Richardson RFPD and Lime Microsystems Sign Distribution Deal". Wireless Design & Development.
  2. ↑ None cited (April 25, 2013). "Open-source base station runs Lime FPRF transceivers". EE Times Asia.
  3. ↑ Wilson, Richard (April 22, 2013). "UK-designed LTE-A board is key for cognitive radio in Europe". Electronics Weekly.
  4. ↑ Clarke, Peter (March 7, 2013). "RF board takes Arduino-like approach". EE times.
  5. ↑ None cited (April 18, 2013). "Eurecom Picks Lime for LTE-A". Light Reading.
  6. ↑ None cited. "First public demonstration of Lime Microsystems' broadband transceiver reference design at MWC". Lime Microsystems. Retrieved July 1, 2013.
  7. ↑ "RF board takes Arduino-like approach".
  8. ↑ "Cambridge Consultants Interface Magazine" (PDF).
  9. ↑ None cited. "Cambridge Consultants develops industry's smallest 2G and 3G femtocell base station". Cambridge Consultants. Retrieved July 1, 2013.
  10. ↑ "Airwalk group designs LTE small cell platform".
  11. ↑ "Hardware Freedom Day sees Fairwaves launch first industrial-grade open-source base station". Fairwaves.
  12. ↑ "Agilent works with chipset firm to speed SDR development". December 7, 2011.
  13. 1 2 "bladeRF – USB 3.0 Software Defined Radio".
  14. ↑ "Hardware Freedom Day sees Fairwaves launch first industrial-grade open-source base station".
  15. ↑ "Myriad RF".
  16. ↑ "Advanced coexistence technologies for radio optimisation in licensed and unlicensed spectrum" (PDF).
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