Patent ID: 8731552
Filing Date: 2014-05-20
Classification: H04W

Abstract:
1. A network selection method for use in a mobile device which is configured for voice and packet data communications, the method comprising: performing a scanning operation to identify one or more communication networks; consulting a network selection list for selecting, in accordance with assigned priorities of the network selection list, one of the identified communication networks; determining whether a data service interconnection to a home network is available by sending a request for data service via the selected communication network to a home network server of the home network; when the data service interconnection to the home network via the selected communication network is determined to be available based on receipt of an acceptance of the request for data service from the home network server, operating in the selected communication network for receiving a data service using the data service interconnection; and otherwise, when the data service interconnection to the home network via the selected communication network is determined to be unavailable based on receipt of a non-delivery notification or no acknowledgement from the home network server, repeating the acts of consulting and determining for a next selected one of the identified communication networks in the network selection list.