Device positioning

An apparatus comprising at least one processor and at least one memory including computer program code;

• the at least one memory and the computer program code configured to, with the at least one processor, cause the apparatus at least to:
• determine a first position estimate for a device based, at least in part, on time delay data from a first serving cell to the device and second data relating to at least one second cell;
• select, based on the first position estimate for the device, a first constellation of base stations, from a plurality of candidate constellations of base stations, for use in determining a second position estimate for the device;
• and
• generate neighbour cell information, wherein said neighbour cell information comprises an ordered list of base stations including at least said first constellation of base stations.

A method comprising:

• determining a first position estimate for a device based, at least in part, on time delay data from a first serving cell to the device and second data relating to at least one second cell;
• selecting, based on the first position estimate for the device, a first constellation of base stations, from a plurality of candidate constellations of base stations, for use in determining a second position estimate for the device;
• and
• generating neighbour cell information, wherein said neighbour cell information comprises an ordered list of base stations including at least said first constellation of base stations.

A non-transitory computer readable medium comprising program instructions stored thereon for performing at least the following:

• determining a first position estimate for a device based, at least in part, on time delay data from a first serving cell to the device and second data relating to at least one second cell;
• and
• selecting, based on the first position estimate for the device, a first constellation of base stations, from a plurality of candidate constellations of base stations, for use in determining a second position estimate for the device;
• and
• generate neighbour cell information, wherein said neighbour cell information comprises an ordered list of base stations including at least said first constellation of base stations.