(19)

(11)

EP 4 238 245 A1

(12)

(43) Date of publication: 06.09.2023 Bulletin 2023/36 (21) Application number: 21823340.1 (22) Date of filing: 26.11.2021

(51) International Patent Classification (IPC):  H04B 10/2575(2013.01) (52) Cooperative Patent Classification (CPC): H04B 10/25751 (86) International application number: PCT/GB2021/053086 (87) International publication number: WO 2022/123213 (16.06.2022 Gazette 2022/24)

(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 MK MT NL NO PL PT RO RS SE SI SK SM TR Designated Extension States: BA ME Designated Validation States: KH MA MD TN (30) Priority: 10.12.2020 GB 202019474 (71) Applicant: Global Invacom Ltd. Stevenage, Hertfordshire SG1 2UG (GB)	(72) Inventor: JONES, Michael Stevenage Hertfordshire SG1 2UG (GB) (74) Representative: Wood, Graham  Bailey Walsh & Co LLP 1 York Place Leeds, LS1 2DR Leeds, LS1 2DR (GB)