US 12,267,672 B2
Providing UE capability information to an authentication server
Jari Arkko, Kauniainen (FI); and Vesa Lehtovirta, Espoo (FI)
Assigned to TELEFONAKTIEBOLAGET LM ERICSSON (PUBL), Stockholm (SE)
Appl. No. 17/437,769
Filed by Telefonaktiebolaget LM Ericsson (publ), Stockholm (SE)
PCT Filed Mar. 4, 2020, PCT No. PCT/EP2020/055627
§ 371(c)(1), (2) Date Sep. 9, 2021,
PCT Pub. No. WO2020/182557, PCT Pub. Date Sep. 17, 2020.
Claims priority of provisional application 62/817,818, filed on Mar. 13, 2019.
Prior Publication US 2022/0159457 A1, May 19, 2022
Int. Cl. H04W 12/06 (2021.01); H04L 9/08 (2006.01); H04W 12/03 (2021.01); H04W 12/0431 (2021.01)
CPC H04W 12/06 (2013.01) [H04L 9/0841 (2013.01); H04W 12/03 (2021.01); H04W 12/0431 (2021.01)] 25 Claims
OG exemplary drawing
 
1. A method for registering with a serving network, the method being performed by a user equipment (UE) and comprising:
transmitting to the serving network a message indicating a UE capability that is relevant for a home network, wherein
the serving network is configured to send to the home network a message indicating the UE capability, and
the message transmitted by the serving network comprises a Subscriber Concealed Identifier (SUCI) which includes a perfect forward secrecy (PFS) indicator or an encrypted version of the PFS indicator that indicates an authentication capability of the UE; and
after transmitting the message, receiving a challenge transmitted by the home network, wherein the serving network is separate from the home network.