Methods for improving performance and reducing power consumption in a dsds device

A dual subscriber identification module (SIM) dual standby (DSDS) device, the DSDS device comprising:

• a memory;
• a first SIM configured to store information for availing first services from a first network;
• a second SIM configured to store information for availing second services from a second network;
• and
• a controller operatively coupled to the memory, the first SIM and the second SIM, and the controller configured to:
• determine whether one or more entry conditions for restricting a use of the second SIM used to perform neighbour cell search and measurement operations are detected when the first SIM is used to perform data communication related to the first network;
• impose restrictions on the use of the second SIM in response to detecting the one or more entry conditions;
• determine whether one or more exit conditions to remove the restrictions on the use of the second SIM are detected;
• and
• remove the restrictions on the use of the second SIM in response to detecting the one or more exit conditions;
• wherein while the restrictions are imposed on the use of the second SIM, the first SIM is used to the data communication using a radio frequency (RF) resource that is shared for the first SIM and the second SIM.

A method for operating by a dual subscriber identification module (SIM) dual standby (DSDS) device including a first SIM and a second SIM, the method comprising:

• detecting whether a signal strength of a serving cell associated with the second SIM is greater than a threshold value when the first SIM is used to perform data communication with a first network;
• imposing restrictions on a use of the second SIM used to perform neighbour cell search and measurement operations in response to detecting the signal strength of the serving cell is greater than the threshold value;
• detecting whether the first SIM is in an idle state;
• removing the restrictions on the use of the second SIM in response to detecting the first SIM is in the idle state;
• and
• wherein while the restrictions are imposed on the use of the second SIM, the first SIM is used to the data communication using a radio frequency (RF) resource that is shared for the first SIM and the second SIM.