Method and system for multi-standby operation for a multi-SIM multi-standby communication device

摘要

A communication device comprises a single radio resource unit that is shared by a plurality of virtual modems (VMs), each uniquely associated with a single one of a plurality of SIM cards. Traffic related to the SIM cards are concurrently handled utilizing corresponding VMs. Available radio resource in the single radio resource unit are shared by the VMs based on corresponding VM states, namely, an active state, an idle state and a suspended state. VMs in an idle state concurrently monitor paging events and concurrently perform idle mode procedures such as location updating. VMs not related to an intended traffic are suspended. A VM related to the intended traffic is transitioned from an idle state to an active state to enable the communication for the intended traffic. Once the communication is complete, the suspended VMs are resumed to continue idle mode activities.

主权项

1. A method for communication, the method comprising:
in a multiple-subscriber identity module (multi-SIM) multi-standby communication device comprising a single wireless radio that is shared by a plurality of virtual modems based on corresponding virtual modem states: detecting a traffic intended for a specified virtual modem in an idle state; sending a suspend state request to one or more virtual modems that are not related to said detected traffic to suspend said one or more virtual modems by terminating one or more ongoing communication sessions associated with said one or more virtual modems; in response to said suspend state request, receiving a suspend state confirmation message from said one or more virtual modes confirming said suspension; transitioning said specified virtual modem from the idle state to an active state; and communicating said detected traffic via said specified virtual modem using a radio resource available in said single wireless radio, wherein each of said plurality of virtual modems is associated with a single one of a plurality of subscriber identity module (SIM) cards.