US 12,408,018 B2
Steering of roaming check during mobility registration
Nitin Kuppelur, Bengaluru (IN); Krisztian Kiss, Rancho Santa Fe, CA (US); Deepak Dash, Bengaluru (IN); Karthik Anantharaman, Cupertino, CA (US); Kavya B. Ravikumar, San Diego, CA (US); Nirlesh Koshta, Bengaluru (IN); and Sridhar Prakasam, Fremont, CA (US)
Assigned to APPLE INC., Cupertino, CA (US)
Filed by APPLE INC., Cupertino, CA (US)
Filed on Sep. 25, 2023, as Appl. No. 18/473,489.
Application 18/473,489 is a continuation of application No. 17/593,646, previously published as PCT/US2021/038824, filed on Jun. 24, 2021.
Claims priority of application No. 202041034618 (IN), filed on Aug. 12, 2020.
Prior Publication US 2024/0015685 A1, Jan. 11, 2024
Int. Cl. H04W 8/12 (2009.01); H04W 48/18 (2009.01); H04W 60/04 (2009.01); H04W 84/04 (2009.01)
CPC H04W 8/12 (2013.01) [H04W 48/18 (2013.01); H04W 60/04 (2013.01); H04W 84/042 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A method for a home public land mobile network (HPLMN), the method comprising:
configuring a user equipment (UE) to operate according to a steering of roaming (SoR) configuration, wherein the SoR configuration comprises configuring the UE to determine whether SoR information is included in a registration accept message associated with a mobility registration update, rather than an initial registration or an emergency registration, in a visited public land mobile network (VPLMN);
configuring UE context information to include an SoR indicator for the mobility registration indicating that the VPLMN is requested to retrieve the SoR information in response to a registration type parameter indicating a mobility registration update selected from among an initial registration, an emergency registration, and the mobility registration update when a SoR container has not been delivered to the UE in a previous registration during a current power cycle of the UE in the VPLMN; and
in response to a request from the VPLMN, providing the SoR information in the SoR container to the VPLMN to forward to the UE.