Steering of roaming PLMN list update and management

US12342418B2 · kind B2 · utility

Assignee

• Apple Inc. · US

Inventors

• Sridhar Prakasam · Cupertino, US
• Qi He · San Jose, US
• Rohit R. Matolia · Amroli, IN
• Shashanka Totadamane Ramappa · Shivamogga, IN
• Nirlesh Koshta · Survanagiri, IN
• Xiangpeng Jing · San Diego, US
• Krisztian Kiss · Cupertino, US
• Nitin Kuppelur · Bengaluru, IN
• Kavya B. Ravikumar · San Diego, US
• Rajkumar Krishnaperumal · Kanchinakote, IN
• Pradeep Pangi · Bengaluru, IN
• Karthik Anantharaman · Cupertino, US
• Alosious Pradeep Prabhakar · Singapore, SG
• Vijay Venkataraman · San Jose, US
• Lester Chan · Cupertino, US
• Madhusudhan Cheripally · Bengaluru, IN

Key dates

• Filing date: May 26, 2023
• Grant date: Jun 24, 2025
• Expiry date: May 26, 2043

Classification

• Technology area (CPC H): Electricity
• CPC primary: H04W84/042
• WIPO field: Digital communication
• WIPO sector: Electrical engineering

Abstract

Apparatuses, systems, and methods for SoR list management and PLMN selection based on an SoR list. A UE may receive an SoR container which may include a list of OPLMNs. The UE may store a prior list of OPLMNs stored on a USIM of the UE on a memory of the UE. The UE replace the prior list of OPLMNs stored on the USIM with the list of OPLMNs included in the SoR container. The UE may consider the prior list of OPLMNs as a lower priority list as compared to the list of OPLMNs stored on the USIM. Additionally, in response to determining to move from a current PLMN, the UE may scan for a new PLMN based on the list of OPLMNs stored on the USIM.