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GPS is just the US Space Force network. iPhones support GPS, Galileo (ESA), GLONASS (Roscosmos), QZSS (JAXA) and so-called assisted GPS – location computed fro
by yreg 5y ago
GPS is just the US Space Force network.
iPhones support GPS, Galileo (ESA), GLONASS (Roscosmos), QZSS (JAXA) and so-called assisted GPS – location computed from cell towers.
- 05 5y agoAssisted GPS is not (solely) the wifi/cell tower triangulation, it’s a technology that provides the receiver with an up to date GNSS satellite ephemeris to reduce time to first fix from minutes to seconds.
- fulafel 5y agoA-GPS/A-GNSS is orthogonal to cell site triangulation. It uses the data connection to fetch information to augment the satellite radio signals.