System and Methods for Increasing Efficiency of a Public Land Mobile Network Search in Service Acquisition on a Multi-SIM Wireless Device

摘要

Methods and devices are disclosed for enabling improved service acquisition on a first SIM of a multi-SIM wireless communication device. After the first SIM has lost service, the wireless device may detect a condition triggering a public mobile land network (PLMN) selection associated with the first SIM, receive an indication that service acquisition settings of the first SIM are set to a manual mode, and determine whether the second SIM is in idle mode. Upon determining that the second SIM is in idle mode, the wireless device may identify timing of a sleep cycle implemented by the second SIM, and perform the PLMN search using the first and second radio resources.

主权项

1. A method of improving service acquisition on a first subscriber identification module (SIM) of a multi-SIM wireless communication device having at least the first SIM associated with a first radio resource and a second SIM associated with a second radio resource, comprising:
detecting a condition triggering a public mobile land network (PLMN) selection associated with the first SIM; receiving an indication that service acquisition settings of the first SIM are set to a manual mode; determining whether a modem stack associated with the second SIM is in idle mode; and in response to determining that the modem stack associated with the second SIM is in idle mode:
identifying timing of a power-saving mode cycle implemented by the modem stack associated with the second SIM; andperforming a PLMN search using the first and second radio resources.