Alice from Bynav is an automotive-grade GNSS high-precision system-on-chip with built-in baseband ASIC and RFIC, using a 22 nm process and supporting full constellations and full frequencies with over 1500 channels. It features a built-in REAL RTK positioning engine and DIST deep-coupled GNSS/INS navigation engine, with SAIF multi-interference suppression technology handling interference-signal ratios up to 65 dBc. It provides 1 cm plus 1 ppm RTK horizontal accuracy, carrier phase observation precision under 1 mm RMS, and a 50 Hz observation output rate in a 6 by 8 mm package rated for minus 40 to plus 105 degrees Celsius.