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(11)

EP 4 500 781 A1

(12)

(43) Date of publication: 05.02.2025 Bulletin 2025/06 (21) Application number: 23778702.3 (22) Date of filing: 30.03.2023

(51) International Patent Classification (IPC):  H04L 9/12(2006.01) H04B 10/70(2013.01) H04L 9/08(2006.01) (52) Cooperative Patent Classification (CPC): H04L 9/12; H04B 10/70; H04L 9/0852 (86) International application number: PCT/IN2023/050313 (87) International publication number: WO 2023/187836 (05.10.2023 Gazette 2023/40)

(84) Designated Contracting States: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC ME MK MT NL NO PL PT RO RS SE SI SK SM TR Designated Extension States: BA Designated Validation States: KH MA MD TN (30) Priority: 31.03.2022 IN 202211019556 (71) Applicant: Centre for Development of Telematics (C-Dot) New Delhi 110030 (IN)	(72) Inventors: HALDER, Prasanta New Delhi 110030 (IN) GUPTA, Atul Kumar New Delhi 110030 (IN) KATIYAR, Akriti New Delhi 110030 (IN) ADURTI, V S Vaishnavi Banglore 560100 (IN) (74) Representative: AWA Sweden AB  Matrosgatan 1 Box 5117 200 71 Malmö 200 71 Malmö (SE)