(19)

(11)

EP 4 264 892 A2

(12)

(88) Date of publication A3: 22.07.2021 (43) Date of publication: 25.10.2023 Bulletin 2023/43 (21) Application number: 21713836.1 (22) Date of filing: 01.03.2021

(51) International Patent Classification (IPC):  H04L 12/841(2013.01) H04L 12/875(2013.01) H04L 12/801(2013.01) (52) Cooperative Patent Classification (CPC): H04L 47/283; H04L 47/35; H04L 47/56; H04L 47/6275 (86) International application number: PCT/US2021/020246 (87) International publication number: WO 2021/119675 (17.06.2021 Gazette 2021/24)

(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: 19.01.2021 US 202163139118 P (71) Applicant: Huawei Technologies Co., Ltd. Shenzhen, Guangdong 518129 (CN)	(72) Inventors: ECKERT, Toerless Tobias Plano, Texas 75024 (US) CLEMM, Alexander Plano, Texas 75024 (US) BRYANT, Stewart Plano, Texas 75024 (US) CHUNDURI, Uma S. Plano, Texas 75024 (US) (74) Representative: Epping - Hermann - Fischer  Patentanwaltsgesellschaft mbH Schloßschmidstraße 5 80639 München 80639 München (DE)