Abstract:
In conventional public networks, a subscriber identity module (SIM) is installed on a mobile station for authenticating users and improving the communication security between mobile stations and the network. This specification proposes an authentication agent (AA) installed on a network and with the SIM of the mobile station installed on the AA. Thus, the mobile station gets authenticated from the AA and then the AA uses the SIM of the mobile station to obtain authentication from the authentication server.
Abstract:
When a mobile station stands by on multiple mobile networks simultaneously, the radio transceiver of the mobile station must be used to perform paging reception, location registration, carrier measurement, or broadcast reception for multiple mobile networks, respectively. However, a mobile station has one radio transceiver only and the multiple mobile networks don't negotiate with each other. Thus, resource collision occurs when the radio transceiver performs tasks for multiple mobile networks simultaneously. In order to handle resource collision, a priority task is determined and non-priority tasks are postponed or cancelled according to the mobile network distinction mainly and the task class subsequently.