Patent 9008686 was granted and assigned to Nokia on April, 2015 by the United States Patent and Trademark Office.
It is inter alia disclosed to estimate at least one of a location and an orientation of a first-type device (11) at least based on respective location estimates for one or more signal sources (10), wherein at least one location estimate for a signal source (10) of the one or more signal sources is determined at least based on respective signals from the signal source (10) received at one or more second-type devices (12) and respective locations of the one or more second-type devices (12), and respective position relationships between the one or more signal sources (10) and the first-type device (11).