System and Methods for Using Wireless Network Correlations to Acquire Service on a Multi-SIM Device

摘要

Methods and devices are disclosed for enabling efficient service acquisition on multiple SIMs of a multi-SIM device. After at least one SIM has maintained or reacquired a network connection, the wireless device may identify that network, access a joint acquisition database, and determine whether there is a correlated network entry showing a network from which service may be received on SIM-2. In this manner, the wireless device may automatically prioritize a network for a recovery scan on SIM-2, thereby overriding conventional priority given to the network that was most-recently-used by SIM-2.

主权项

1. A method of acquiring wireless service on a first subscription and a second subscription of a multi-SIM wireless device, comprising:
connecting to a first wireless network on a first SIM, wherein the first wireless network is associated with the first subscription; determining whether the connection to the first wireless network is correlated with a second wireless network that is accessible to the second subscription; and performing a service acquisition scan on a second SIM using acquisition data associated with the second wireless network in response to determining that the connection to the first wireless network is correlated with a second wireless network that is accessible to the second subscription.