Patent ID: 10492132

Abstract:
A wireless communication device and method therein for selecting cell and Radio Access Technology, RAT, in a wireless communication system are disclosed. The wireless communication device comprises multiple receiving modules and at least two Subscriber Identity Modules, SIMs. The wireless communication device determines a first cell and a first RAT to camp on using a first receiving module for a first SIM based on estimating a performance of a number of RATs and cells in the wireless communication system. The wireless communication device determines a second cell and a second RAT to camp on using a second receiving module for a second SIM based on estimating a performance of the number of RATs and cells in the wireless communication system. The wireless communication device determines whether idle mode tasks of the first and second SIMs with the determined cells and RATs overlap in time. When the idle mode tasks of the first and second SIMs do not overlap in time, the wireless communication device handles the idle mode tasks of the first and second SIMs using the first receiving module or the second receiving module. When the idle mode tasks of the first and second SIMs overlap at least partly in time, the wireless communication device selects a SIM out of the first and second SIMs for which to move the idle mode tasks to a third receiving module and enabling the third receiving module to handle the idle mode tasks of the selected SIM.