Patent ID: 11917518
Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 3:
4. A wireless device configured to communicate with a network node, the wireless device comprising processing circuitry, the processing circuitry configured to cause the wireless device to:
receive, in a System Information Block, SIB, a first indication indicating whether a non-public network, NPN, supports an Internet Protocol, IP, Multimedia Subsystem, IMS, emergency communication service, the first indication being associated to a public land mobile network, PLMN, identity, ID, extension, the PLMN ID extension corresponding to a PLMID and being a network identity, NID, a combination of the PLMN ID and the NID identifying a standalone NPN to which the first indication of applies;
select a public network supporting the IP IMS emergency communication service to initiate the IP IMS emergency communication service based at least in part on the first indication; and
transmit, to the network node, a second indication indicating the public network supporting the IP IMS emergency communication service.