MAINTAINING THE INTEGRITY OF CONFIGURATION INFORMATION OF A NETWORK OF ACCESS POINTS FOR USE IN POSITIONING AN APPARATUS

摘要

A method comprising: collecting from each of multiple access points in a network of access points a set of measurements made at a respective access point for signals transmitted by other access points, wherein the network of access points is for use in positioning a device that communicates with the network of access points; processing the collected sets of measurements to classify changes in the network of access points; and performing an action that is conditional upon how a change is classified.