Multimode roaming mobile devices
First Claim
Patent Images
1. A mobile device comprising:
- an interface configured to transmit and receive signals over a wireless channel according to a communication mode using one of a plurality of access technologies; and
a store configured to hold a preferred roaming list having a common block holding data common to said plurality of access technologies, and a set of access technology-specific blocks each block configured to hold channel acquisition data specific to only one of the plurality of access technologies,wherein the mobile device is configured to roam between wireless communications networks in different geographical regions.
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Abstract
A mobile device for roaming between wireless communications networks in different geographical regions is provided. The mobile device includes an interface configured to transmit and receive signals over a wireless channel according to a communication mode using one of a plurality of access technologies. The device also includes a store holding a preferred roaming list having a common block holding data common to the plurality of access technologies, and a set of access technology-specific blocks each holding channel acquisition data specific to one of the plurality of access technologies for setting up the communication mode.
293 Citations
27 Claims
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1. A mobile device comprising:
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an interface configured to transmit and receive signals over a wireless channel according to a communication mode using one of a plurality of access technologies; and a store configured to hold a preferred roaming list having a common block holding data common to said plurality of access technologies, and a set of access technology-specific blocks each block configured to hold channel acquisition data specific to only one of the plurality of access technologies, wherein the mobile device is configured to roam between wireless communications networks in different geographical regions. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A method comprising:
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managing a preferred roaming list of a mobile device capable of transmitting and receiving signals using each of a plurality of access technologies; transmitting a notification message from a mobile device to a management server, said notification message including parameters identifying the device and an access technology of a current communication mode; and transmitting an update message from the management server to the mobile device according to said communication mode, for performing an update to only one access technology-specific blocks of a preferred roaming list stored at the mobile device, the access technology-specific block being one of a set of access technology-specific blocks, each holding channel acquisition data specific to one of the plurality of access technologies. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24)
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25. A computer program product comprising a code sequence which, when executed by a processor on a mobile device, performs the following:
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transmitting a notification message from the mobile device to a management server in a network, said notification message including parameters identifying the mobile device and an access technology of a current communication mode; and receiving an update message from the management server and performing an update to only one access technology-specific blocks of a preferred roaming list, the access technology-specific block being one of a set of access technology-specific blocks each holding channel acquisition data specific to one of a plurality of access technologies.
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26. A communications system comprising a management server, the management server comprising:
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means for receiving a notification message from a mobile device, said notification message including parameters identifying the mobile device and an access technology of a current communication mode; and means for transmitting an update message for performing an update to only one access technology-specific blocks of a preferred roaming list stored at the mobile device, the access technology-specific block being one of a set of access technology-specific blocks each holding channel acquisition data specific to one of a plurality of access technologies.
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27. A mobile device configured to transmit and receive signals using each of a plurality of access technologies, the mobile device comprising:
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means for transmitting a notification message to a management server, said notification message including parameters identifying the device and an access technology of a current communication mode; and means for receiving an update message from the management server according to said communication mode, for performing an update to only one access technology-specific block of a preferred roaming list stored at the mobile device, the access technology-specific block being one of a set of access technology-specific blocks, each holding channel acquisition data specific to one of the plurality of access technologies.
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Specification