US 12,408,134 B2
Systems and methods for user equipment (UE) registration
Peter Ramle, Mölnlycke (SE); Josefin Karlsson, Torslanda (SE); and Lasse Olsson, Träslövsläge (SE)
Assigned to TELEFONAKTIEBOLAGET LM ERICSSON (PUBL), Stockholm (SE)
Filed by Telefonaktiebolaget LM Ericsson (publ), Stockholm (SE)
Filed on Dec. 18, 2023, as Appl. No. 18/543,675.
Application 18/543,675 is a continuation of application No. 17/691,235, filed on Mar. 10, 2022, granted, now 11,864,149.
Application 17/691,235 is a continuation of application No. 16/314,241, granted, now 11,277,809, issued on Mar. 15, 2022, previously published as PCT/EP2017/066160, filed on Jun. 29, 2017.
Claims priority of provisional application 62/357,576, filed on Jul. 1, 2016.
Prior Publication US 2024/0214963 A1, Jun. 27, 2024
Int. Cl. H04W 60/04 (2009.01); H04W 76/11 (2018.01)
CPC H04W 60/04 (2013.01) [H04W 76/11 (2018.02)] 11 Claims
OG exemplary drawing
 
1. A method performed by a user equipment (UE), the method comprising:
transmitting via an access network towards a signal handling function (SHF) of a core network a message to register the UE in a non-registered state, the message includes a message type identifier identifying the message is a Registration Request, a registration type Information Element (IE) indicating the Registration Request is for an initial registration by the UE and a permanent identifier (PID) allocated to the UE as an identification for the UE;
receiving from the SHF a Registration Accept message comprising a temporary identifier;
responding to the SHF with a Registration Complete indicating the UE has accepted the temporary identifier;
when performing idle mobility or after a predefined time period and the UE is in a registered state, transmitting to the core network a second message comprising the message type identifier similarly identifying the second message as the Registration Request, the registration type IE indicating the Registration Request is other than the initial registration, and the temporary identifier as the identification for the UE; and
receiving a second Registration Accept message.