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(11)

EP 4 817 343 A1

(12)

(43) Date of publication: 07.10.2026 Bulletin 2026/41 (21) Application number: 24790304.0 (22) Date of filing: 08.10.2024

(51) International Patent Classification (IPC):  H04W 72/30(2023.01) H04W 74/0816(2024.01) H04W 4/06(2009.01) (52) Cooperative Patent Classification (CPC): H04W 72/30; H04W 4/06; H04W 74/0816 (86) International application number: PCT/EP2024/078279 (87) International publication number: WO 2025/113864 (05.06.2025 Gazette 2025/23)

(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: GE KH MA MD TN (30) Priority: 27.11.2023 EP 23212415 (71) Applicant: British Telecommunications public limited company London, Greater London E1 8EE (GB)	(72) Inventors: SCAHILL, Francis London Greater London E1 8EE (GB) RINGLAND, Simon London Greater London E1 8EE (GB) (74) Representative: British Telecommunications public limited company Intellectual Property Department  9th Floor One Braham Braham Street London E1 8EE London E1 8EE (GB)