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OneNav announces pureL5 GNSS digital IP core

March 8, 2022  - By

The PureL5 Customer Evaluation System is being tested by California and Chinese companies

oneNav logoOneNav has announced the commercial availability of its pureL5 GNSS digital IP core.

The pureL5 digital IP core’s architecture enables it to directly acquire and track L5 signals from GPS, Galileo, BeiDou, QZSS and GLONASS without any L1 aiding. This eliminates the entire L1 RF chain, saves space on the printed circuit board, and simplifies the RF front-end and antenna subsystem in smartphones, wearables and trackers.

The pureL5 digital IP core’s massively parallel array processor searches the entire 1-millisecond L5 code space in parallel, delivering 1 second time to first fix (TTFF). The pureL5 digital IP core is 0.28mm2 in the 3-nm semiconductor process and consumes 4.7 mW of power in 1-Hz tracking mode.

OneNav has delivered the pureL5 digital IP core register-transfer level (RTL) to its first system-on-chip (SOC) customer. IP core RTL verification and physical implementation are complete, and oneNav’s SOC licensee will tape out in the first quarter of this year. The pureL5 digital IP core RTL is available for customer licensing and shipment now.

Customer Evaluation System. OneNav’s pureL5 Customer Evaluation System is being tested by companies in California and China. The system is available for smartphone and wearable OEMs and SOC providers who want to evaluate oneNav’s pureL5 in the field and the lab.

PureL5 GNSS Features

  • Smaller footprint than L1+L5 hybrids, simplifying implementation in highly space-constrained devices such as 5G smartphones and wearables
  • Lowers bills of material (BOM) cost and simplifies the RF front-end and antenna subsystem by eliminating the entire L1 RF chain
  • No L1 aiding required: directly acquires L5/E5/B2 with 1-second TTFF
  • Less software complexity, simplifies RF coexistence engineering
  • Better interference resiliency
  • Scalable IP signal processing core is semiconductor process-node independent
  • Multi-constellation L5: Beidou, Galileo, GPS, QZSS, GLONASS.

About the Author:


Senior Editor Tracy Cozzens joined GPS World magazine in 2006. She also is editor of GPS World’s newsletters and the sister website Geospatial Solutions. She has worked in government, for non-profits, and in corporate communications, editing a variety of publications for audiences ranging from federal government contractors to teachers.

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