FINE TIME ASSISTANCE FOR GLOBAL NAVIGATION SATELLITE SYSTEMS

摘要

Apparatus and methods are disclosed for providing fine timing assistance to global navigation satellite systems (GNSS) via wireless local area network (WLAN). In one embodiment, a method (300) for synchronizing a global navigation satellite system (GNSS) receiver includes receiving (308), by a wireless device, via a wireless local area network (WLAN), fine time assistance information transmitted by an assisting device connected to the WLAN. A time value of a GNSS clock of the wireless device is adjusted (312) based on the fine time assistance information. Based on the adjusted time value, GNSS codes of a GNSS positioning signal are acquired (314) by the wireless device.