Nokia Corporation

Spyder Navigations LLC

Maurizio Spirito

Ville Ruutu

Eero Sillasto

Jani Moilanen

Mikko Weckström

Sami Poykko

Veli-Matti Teittinen

A method of estimating the location of a mobile device, comprising the steps of: collecting location information; selecting at least one of a plurality of different location methods to provide a location estimate; and providing a location estimate based on the at least one selected location method.

Method and system for estimating the position of a mobile device

The invention proposes a method for locating a network element, comprising the steps of obtaining (S) the coordinates (xS, yS) of a second network element (BTS) to which the first network element (MS) is connected or attached; detecting (S) a serving area (S), which is served by the second network element (BTS); detecting (S) a propagation delay of the first network element with respect to the second network element (BTS); determining (S) a propagation delay depending area (C), which is an area having a distance to the second network element (BTS) based on the propagation delay and a width based on the propagation delay; and forming (S) an intersection area (I) of the serving area (S) and the propagation delay depending area (C); wherein a location estimate of the first network element (MS) is determined (S) from the intersection area (I). Thus, an uncertainty area where a first network element is located can be reduced and the location accuracy can be improved.

User positioning

The method generates a location estimate for a mobile station in a wireless communications network. The method includes receiving first measurement data relating to at least one radio link between the mobile station and a first site, and provides a first distance estimate of the mobile station from the first site based on the first measurement data. Second measurement data is received, relating to at least one radio link between the mobile station and a second site and provides a second distance estimate of the mobile station from the second site. First and second intersection points are determined between a circle centered at the first site of a radius corresponding to the first distance estimate, and a circle centered at the second site of the radius corresponding to the second distance estimate. The first and second intersection points lie on opposite sides of a line passing through the first and second sites. At least one of the first and second intersection points are used in the determination of the location estimate.

System and method for generating a location estimate for a mobile station

A method of providing a location estimate for a mobile station in a wireless communications network. The method of providing the location estimate includes implementing, in parallel, a plurality of different location estimate generation methods, each location generation method generating a location estimate. The method of providing the location estimate also includes selecting one of the location estimates based on predetermined criteria.

Locating mobile terminals

A method for determining if a signal received at a radio receiver in a communication system is transmitted to the receiver via a direct radio link comprising the steps of: determining a signal characteristic based on one or more signal measurements collected at the receiver; comparing the signal characteristic as determined with at least one predetermined system parameter; and responsive to said comparison determining if said signal is received via a direct link.

Method and a system for detecting communication relaying network elements

A telecommunications system comprises a first transmitter unit situated at a first, known location; a second transmitter unit situated at a second, unknown location; a first receiving unit at a third, known location arranged to receive signals from the first and second transmitter units; and a second receiving unit at a fourth, known location arranged to receive signals from the first and second transmitter units, wherein the said signals received by the first and second receiving units are usable to ascertain the location of the second transmitter unit.

Positioning in a telecommunications system

The altitude of a communications device, which communicates with a communications system via at least one antenna, is estimated. The altitude estimation is based at least on altitude information of said at least one antenna. The altitude estimate of the communications device may be based on a two-dimensional location estimate for the communications device and on information representing three-dimensional location of said at least one antenna of said communication system. The two-dimensional location estimate and the altitude estimate may be sent to the communications device as location assistance information.

Growing community of inventors

Turin, Italy

Maurizio Spirito