| 摘要 |
The present invention provides a mobile device that is able to implement A-GPS and other network services across multiple disparate communications networks In an exemplary embodiment of the invention, a mobile communications device implements a plurality of mobile network profiles—each profile being associated with a different mobile network and its respective carrier, i.e., operator or service provider. Each profile comprises multiple data parameters that are used to authenticate a valid mobile device to the respective communications network carrier and for opening a data channel such as a transmission control protocol and internet protocol (TCP/IP) data connection. These data parameters are used to facilitate communications with a remote server on the network such as a server for performing A-GPS. As soon as the mobile device detects that no signals can be received by the current active mobile network operator, it will assess other stored mobile profiles and determine if it can receive signals from one of the other available mobile networks signals being received, and if so it will load and activate a new mobile profile to authenticate the device for use with the visiting mobile network.
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