	US 12,267,679 B2
	Inter-PLMN communication
Narasimha Rao Pulipati, Redmond, WA (US); Saurabh Khare, Bangalore (IN); and Bruno Landais, Pleumeur-Bodou (FR)
Assigned to Nokia Technologies Oy, Espoo (FI)
Filed by Nokia Technologies Oy, Espoo (FI)
Filed on Oct. 18, 2022, as Appl. No. 18/047,355.
Claims priority of application No. 202141050756 (IN), filed on Nov. 5, 2021.
Prior Publication US 2023/0141233 A1, May 11, 2023
Int. Cl. H04W 92/02 (2009.01); H04W 12/069 (2021.01); H04W 12/086 (2021.01); H04W 12/106 (2021.01); H04W 48/16 (2009.01); H04W 48/18 (2009.01); H04W 76/10 (2018.01); H04L 9/40 (2022.01); H04L 67/56 (2022.01); H04W 84/04 (2009.01)

CPC H04W 12/086 (2021.01) [H04W 12/069 (2021.01); H04W 12/106 (2021.01); H04W 48/16 (2013.01); H04W 48/18 (2013.01); H04W 76/10 (2018.02); H04W 92/02 (2013.01); H04L 63/0823 (2013.01); H04L 63/166 (2013.01); H04L 67/56 (2022.05); H04W 84/042 (2013.01)]

20 Claims

1. An apparatus comprising:

at least one processor,

at least one memory storing instructions that, when executed by the at least one processor, cause the apparatus at least to:

initiate establishment of an N32-c transport layer security connection with an entity, the apparatus located in a first public land mobile network and the entity located in a second public land mobile network;

send from the apparatus to the entity on the N32-c transport layer security connection an N32-c handshake signalling message comprising domain name information of the apparatus to be used by the entity for establishing an N32-f transport layer security connection towards the apparatus;

receive a reply from the entity, the reply comprising domain name information of the entity to be used by the apparatus for establishing the N32-f transport layer security connection towards the entity; and

use the domain name information received in the reply to establish the N32-f transport layer security connection towards the entity.