Methods for providing multiple wireless communication services with reduced paging collisions and communication apparatuses utilizing the same

A method for providing multiple wireless communication services in a communication apparatus with reduced paging collisions, wherein the communication apparatus comprises a radio transceiver module, a first subscriber identity card communicating with a first wireless network via the radio transceiver module, a second subscriber identity card communicating with a second wireless network via the radio transceiver module, and a processor coupled to the radio transceiver module, the first subscriber identity card and the second subscriber identity card, and the method comprising using the processor comprises:

• obtaining a first paging parameter from a first cell belonging to the first wireless network via the radio transceiver module;
• obtaining a plurality of second paging parameters from a second cell belonging to the second wireless network via the radio transceiver module;
• obtaining a plurality of corresponding paging collision numbers each according to the first paging parameter and each second paging parameter;
• determining one from the second paging parameters with the minimum paging collision number;
• and
• transmitting the determined second paging parameter via the radio transceiver module to the second wireless network through the second cell belonging to the second wireless network,
• thereby enabling the second cell to broadcast a plurality of second paging messages periodically by a time period based on the determined second paging parameter.

A method for providing multiple wireless communication services in a communication apparatus with reduced paging collisions, wherein the communication apparatus comprises a radio transceiver module, a first subscriber identity card communicating with a first wireless network via the radio transceiver module, a second subscriber identity card communicating with a second wireless network via the radio transceiver module, and a processor coupled to the radio transceiver module, the first subscriber identity card and the second subscriber identity card, and the method comprising using the processor comprises:

• obtaining a plurality of first paging parameters from a first cell belonging to the first wireless network via the radio transceiver module;
• obtaining a plurality of second paging parameters from a second cell belonging to the second wireless network via the radio transceiver module;
• obtaining a plurality of first paging occasions distributed within a predetermined time interval for each first paging parameter;
• obtaining a plurality of second paging occasions distributed within the predetermined time interval for each second paging parameter;
• and
• determining one from the first paging parameters and one from the second selected paging parameters according to the obtained first paging occasions and the obtained second paging occasions,
• thereby enabling the first cell to broadcast a plurality of first paging messages periodically by a first time period based on the determined first paging parameter, and the second cell to broadcast a plurality of second paging messages periodically by a second time period based on the determined second paging parameter.