Multi-sim multi-standby communication terminal, and synchronization device and method thereof

摘要

A multi-SIM multi-standby communication terminal, and a synchronization device and method thereof are provided. The synchronization method includes: searching, by the first card, for a network and camping on a first cell after the communication terminal is powered on; controlling the second card to camp on the first cell; determining, by the first card, if there is a second cell qualified for reselection based on the result of neighboring cells measurement, and if the determination result is YES, the first card reselecting the second cell; and controlling the second card to reselect the second cell after the first card camps on the second cell. This disclosure has the following advantages: the efficiency of paging information reception and neighboring cells measurement is increased, power consumption is reduced, the time for camping on and cell reselection is reduced, and the implementation of the physical layer is simplified.

主权项

1. A synchronization method in a multi-SIM multi-standby communication terminal, comprising:
a first card of the communication terminal camping on a first cell; determining whether a second card of the communication terminal belongs to a same operator as the first card; if the second card of the communication terminal does not belong to the same operator as the first card, determining whether the network number of the first cell is contained in the EHPLMN or EPLMN list of the second card, or whether the network number of the first cell is RPLMN of the second card; if the second card of the communication terminal belongs to the same operator as the first card, or if the network number of the first cell is contained in the EHPLMN or EPLMN list of the second card, or if the network number of the first cell is RPLMN of the second card, controlling the second card to camp on the first cell with the first card; and if the network number of the first cell is not contained in the EHPLMN or EPLMN list of the second card, or if the network number of the first cell is not RPLMN of the second card, controlling the second card to camp on a second cell.