Roaming method
AssigneeSmarttrust AB
InventorFredrik Almgren
Life of this patent
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Abstract
The method relates to the management of roaming of mobile subscribers between a home network and foreign networks. The roaming behavior of a mobile terminal is based on roaming settings in the form of contents of different control files saved in the mobile terminal of the subscribers. A first file contains a list of networks to be used in a priority order in a roaming situation and a second file contains information about the last network the subscriber was registered in. The method starts with roaming of the subscriber from one network to another network, and checking the current roaming setting for the subscriber. If the network that the subscriber roamed into does not correspond to the highest priority network, the subscriber is moved to a preferred network corresponding to the priority order of said list.
Claims15
A method for the management of roaming of a mobile subscriber between a home network and foreign networks, in which method a roaming behavior of a mobile terminal is based on roaming settings in a form of contents of different control files saved in the mobile terminal of the subscriber, a first file containing a list of networks to be used in a priority order in a roaming situation and a second file containing information about the last network the subscriber was registered in, information in the second file being primarily used over the list of networks contained in the first file in the roaming situation, the method comprising:
- a) the subscriber roaming from one network to another network,
- b) checking a current roaming setting for the subscriber and,
- c) when the network that the subscriber roamed into does not correspond to a highest available priority network according to the priority order of the list of networks contained in the first file, a dynamic roaming client identifying a preferred network, the preferred network corresponding to the highest available priority network according to the priority order, and
- d) starting up or re-initializing a network connection of the mobile terminal in the roaming situation, preventing a selection of the most recently used network contained in the second file that the subscriber was registered in when the most recently used network is different from the preferred network, the dynamic roaming client selecting the preferred network although the preferred network is different from the recently used network contained in the second file, sending information about the selection of the preferred network to the mobile terminal, the dynamic roaming client moving the subscriber to the preferred network regardless of and overriding the most recently used network contained in the second file that the subscriber was registered in.
Dependencies are inferred from the claim text.