Original language | English |
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IPC | H04L1/18; H04W72/04; H04W72/12; H04W72/14 |
Patent number | US20210068097 |
Country/Territory | United States |
Publication status | Published - 2021 |
Bibliographical note
Patent Family: CN111819871A;EP3744114A1
EP3744114A4
US2021068097A1
WO2019145595A1