Apparatus and methods for improving multi-sim devices performance and operation

A wireless communication device, comprising:

• a transceiver associated with a first universal subscriber identification module (USIM), and a second USIM;
• and
• a processor in communication with the first USIM and the second USIM, the processor programmed to:
• determine priority-based ranking of message services associated with each of the first USIM and the second USIM, wherein the first USIM is associated with a first network, and the second USIM is associated with a second network;
• set a policy rule for processing the message services based on the priority-based ranking;
• communicate the policy rule to a network access node of the first network;
• determine a service preference of a first message service associated with the first USIM, and determine a service preference of a second message service associated with the second USIM based on the policy rule;
• determine, among the first and the second message services, which message service has higher service preference, and which message has lower service preference;
• allow the USIM supporting the higher service preference message to communicate to the second network;
• and
• prevent the USIM supporting the lower service preference message to communicate to the first network.

A wireless communication device, comprising:

• means for associating a priority-based ranking to message services associated with each of a first and a second universal subscriber identification module (USIM), wherein the first USIM is associated with a first network, and the second USIM is associated with a second network;
• means for setting a policy rule for processing the message services based on the priority-based ranking;
• means for communicating the policy rule to a network access node of the first network;
• means for determining a service preference of a first message service associated with the first USIM, and for determining a service preference of a second message service associated with the second USIM, based on the policy rule;
• means for determining among the first and the second message services, which message service has a higher service preference, and which message service has lower service preference;
• means for allowing the USIM associated with the message service having the higher service preference message to communicate to the second network;
• and
• means for preventing the USIM associated with the message service having the lower service preference message to communicate to the first network.