US 12,144,006 B2
Isolated E-UTRAN operations for public safety (IOPS) awareness with multimedia broadcast multicast services (MBMS)
Magnus Tränk, Lerum (SE); and Joakim Åkesson, Landvetter (SE)
Assigned to Telefonaktiebolaget LM Ericsson (publ), Stockholm (SE)
Appl. No. 17/283,808
Filed by Telefonaktiebolaget LM Ericsson (publ), Stockholm (SE)
PCT Filed Oct. 3, 2019, PCT No. PCT/EP2019/076849
§ 371(c)(1), (2) Date Apr. 8, 2021,
PCT Pub. No. WO2020/074368, PCT Pub. Date Apr. 16, 2020.
Claims priority of provisional application 62/742,628, filed on Oct. 8, 2018.
Prior Publication US 2022/0007332 A1, Jan. 6, 2022
Int. Cl. H04L 12/28 (2006.01); H04L 41/12 (2022.01); H04W 48/10 (2009.01); H04W 72/30 (2023.01); H04W 76/40 (2018.01)
CPC H04W 72/30 (2023.01) [H04L 41/12 (2013.01); H04W 48/10 (2013.01); H04W 76/40 (2018.02)] 27 Claims
OG exemplary drawing
 
1. A method performed by a wireless device for reporting existence of an isolated radio access network, the method comprising:
performing communications in an isolated radio access network, the isolated radio access network being a radio access network provided by one or more first radio base stations that do not have connectivity to a centralized core network of a cellular communications network;
attaching to a second radio base station, the second radio base station having connectivity to the core network; and
providing, to a centralized communications server via the second radio base station, one or more messages that inform the centralized communications server of the existence of the isolated radio access network.