(19)

(11)

EP 4 162 720 A1

(12)

(43) Date of publication: 12.04.2023 Bulletin 2023/15 (21) Application number: 20939094.7 (22) Date of filing: 04.06.2020

(51) International Patent Classification (IPC):  H04W 16/00(2009.01) H01Q 3/02(2006.01) (52) Cooperative Patent Classification (CPC): H04W 16/18 (86) International application number: PCT/CN2020/094340 (87) International publication number: WO 2021/243639 (09.12.2021 Gazette 2021/49)

(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 (71) Applicant: Telefonaktiebolaget LM Ericsson (publ) 164 83 Stockholm (SE)	(72) Inventors: YAN, Junjie Nanjing, Jiangsu 211100 (CN) PAN, Xiaomeng Nanjing, Jiangsu 211100 (CN) YANG, Zhiyu Nanjing, Jiangsu 211100 (CN) (74) Representative: Ericsson  Patent Development Torshamnsgatan 21-23 164 80 Stockholm 164 80 Stockholm (SE)