(19)
(11) EP 0 644 519 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
26.06.1996 Bulletin 1996/26

(43) Date of publication A2:
22.03.1995 Bulletin 1995/12

(21) Application number: 94850143.2

(22) Date of filing: 29.08.1994
(51) International Patent Classification (IPC)6: G08G 1/127
(84) Designated Contracting States:
DE FR GB IT NL

(30) Priority: 14.09.1993 SE 9302981

(71) Applicant: TELIA AB
S-123 86 Farsta (SE)

(72) Inventors:
  • Wichtel, Erik
    S-217 47 Malmö (SE)
  • Andersson, Torbjörn
    S-223 61 Lund (SE)

(74) Representative: Karlsson, Berne et al
Telia Research AB Kgp (Patent Department) Rudsjöterrassen 2
S-136 80 Haninge
S-136 80 Haninge (SE)

   


(54) Arrangement in a system including mobile units


(57) A system comprises mobile units and virtual beacons/radio beacons (VB). An arrangement determines whether a mobile unit passes an affected beacon. A unit (BLT) extracts a first position information produced by the system for the current virtual beacon. Elements are arranged to determine if the said passage exists or not in dependence on a comparison function with the second position information relating to the position of the mobile and extracted from an external position determining system (EPD).






Search report