Patent ID: 8175061

Claim:
A computer-implemented method for providing position determination assisting data in a cellular communications network, comprising the steps of: establishing a quantised path loss measurement index vector for a user equipment; said quantised path loss measurement index vector comprising at least quantised radio measurements, said quantised radio measurements being selected from a list of quantised path loss measurements, quantised signal strength measurements, quantised signal-to-interference ratios, or relative versions thereof, in which signals to/from said user equipment fulfill at least a specific radio condition criterion when received; performing a high-precision position determination for said user equipment; repeating said establishing and performing steps a plurality of times; clustering results of said high-precision position determinations belonging to the same quantised path loss measurement index vector in separate clustered results; associating an area definition with at least one of said clustered results; and, creating position determination assisting data comprising a relation between said quantised path loss measurement index vector and said associated area definitions.