US Patent 9674672 Positioning management

A positioning management apparatus receives first reception information from a first mobile apparatus, the first reception information having been generated based on a received radio transmission from a transmitting apparatus, and receives second reception information from a second mobile apparatus, the second reception information having been generated based on a received radio transmission from a transmitting apparatus. The apparatus compares the first reception information with the second reception information, and, if the comparison indicates that both the first mobile apparatus and the second mobile apparatus received the radio transmission from the same transmitting apparatus, determines an association of the first mobile apparatus with the second mobile apparatus for use in positioning.