US 12,085,662 B2
Radio map improvements
Afef Feki, Massy (FR); Veronique Capdevielle, Magny les Hameaux (FR); Fahad Syed Muhammad, Massy (FR); Anna Pantelidou, Massy (FR); and Muhammad Majid Butt, Naperville, IL (US)
Assigned to NOKIA SOLUTIONS AND NETWORKS OY, Espoo (FI)
Filed by Nokia Solutions and Networks Oy, Espoo (FI)
Filed on Jun. 30, 2023, as Appl. No. 18/345,570.
Claims priority of application No. 20225640 (FI), filed on Jul. 7, 2022.
Prior Publication US 2024/0012088 A1, Jan. 11, 2024
Int. Cl. G01S 5/02 (2010.01)
CPC G01S 5/02524 (2020.05) 9 Claims
OG exemplary drawing
 
1. An apparatus comprising:
at least one processor; and
at least one memory storing computer program instructions that cause, with the at least one processor, the apparatus to perform the following:
acquiring a radio map of an area, the radio map based on radio frequency measurements performed between at least one access node of a wireless network and terminal devices within the area;
detecting at least one gap in the radio map and determining geographical coordinates of the at least one gap, wherein the geographical coordinates define boundaries of the at least one gap;
causing transmission of a message comprising at least one information element requesting for additional measurements and comprising the geographical coordinates of the at least one gap;
in response to the message receiving at least one radio frequency measurement report related to at least one terminal device and comprising radio frequency measurement data and at least one measurement location where the radio frequency measurement data has been measured;
updating the radio map on the basis of the radio frequency measurement data; and
conducting a spatial point pattern test on the radio map to determine a spatial distribution of the radio frequency measurements in the area and to detect the at least one gap.