CA2504497A1 - Methods and device for preferably selecting a communication network which makes data service available - Google Patents

Methods and device for preferably selecting a communication network which makes data service available Download PDF

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Publication number
CA2504497A1
CA2504497A1 CA002504497A CA2504497A CA2504497A1 CA 2504497 A1 CA2504497 A1 CA 2504497A1 CA 002504497 A CA002504497 A CA 002504497A CA 2504497 A CA2504497 A CA 2504497A CA 2504497 A1 CA2504497 A1 CA 2504497A1
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Canada
Prior art keywords
communication
network
communication network
list
networks
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Granted
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CA002504497A
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French (fr)
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CA2504497C (en
Inventor
Hugh Hind
Mark E. Church
Noushad Naqvi
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BlackBerry Ltd
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Individual
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Priority to CA2750998A priority Critical patent/CA2750998C/en
Publication of CA2504497A1 publication Critical patent/CA2504497A1/en
Application granted granted Critical
Publication of CA2504497C publication Critical patent/CA2504497C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/18—Selecting a network or a communication service
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/16—Discovering, processing access restriction or access information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W60/00—Affiliation to network, e.g. registration; Terminating affiliation with the network, e.g. de-registration
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/20—Manipulation of established connections
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W8/00—Network data management
    • H04W8/02—Processing of mobility data, e.g. registration information at HLR [Home Location Register] or VLR [Visitor Location Register]; Transfer of mobility data, e.g. between HLR, VLR or external networks
    • H04W8/04—Registration at HLR or HSS [Home Subscriber Server]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W8/00—Network data management
    • H04W8/18—Processing of user or subscriber data, e.g. subscribed services, user preferences or user profiles; Transfer of user or subscriber data
    • H04W8/183—Processing at user equipment or user record carrier
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W92/00—Interfaces specially adapted for wireless communication networks
    • H04W92/02—Inter-networking arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W92/00—Interfaces specially adapted for wireless communication networks
    • H04W92/16—Interfaces between hierarchically similar devices
    • H04W92/24—Interfaces between hierarchically similar devices between backbone network devices

Abstract

Methods and apparatus for selecting a cellular network to provide one or more communication services for a mobile communication device are disclosed. A
scanning operation (305) is performed by the mobile device to identify a plurality of cellular networks that support a voice communication service in a geographic coverage area. The mobile device then identifies which of the cellular networks makes a data communication service available to it (335, 405). Advantageously, the mobile device assigns priority to or selects a cellular network that makes the data communication service available over a network that fails to make the data communication service available, and may register with that network. The data communication service may include, as examples, an e-mail communication service or an Internet access service.
Preferably, the cellular network operates in accordance with GSM (Global System for Mobile) and GPRS (Generalized Packet Radio Service). In an embodiment, a network is selected which makes the largest number of preferred services available. In another embodiment, a network is selected which has the highest sum of service specific weight values.

Claims (38)

1. A method of selecting a communication network which provides one or more communication services for a mobile communication device (115), the method comprising the acts of:
performing a scanning operation to identify one or more communication networks (205, 210, 215, 220, or 225) that support a voice communication service in a geographic coverage area;
determining which communication networks (205, 210, 215, 220, or 225) make a data communication service available to the mobile communication device (115) by attempting to access the data communication service through the communication networks (205, 210, 215, 220, or 225);
selecting or assigning priority to a network that makes the data communication service available over a network that fails to make the data communication service available; and registering with the selected or prioritized communication network.
2. The method of claim 1, wherein the data communication service comprises at least one of an electronic mail service, a short messaging service, and an Internet access service.
3. The method of claim 1, wherein the one or more communication networks (205, 210, 215, 220, or 225) comprise one or more cellular telecommunication networks.
4. The method of claim 3, wherein operation of the one or more cellular telecommunication networks (205, 210, 215, 220, or 225) is governed by Global Systems for Mobile standards.
5. The method of claim 3, wherein the data communication service is unavailable if the mobile communication device (115) is unable to access the data communication service in response to attempting and the data communication service is available if the mobile communication device (115) is able to access the data communication service in response to attempting.
6. The method of claim 1, wherein the act of determining which communication networks (205, 210, 215, 220, or 225) make a data communication service available is based on being granted or unable to access the data communication service through the communication network.
7. The method of claim 1, wherein the act of selecting or assigning priority to a communication network comprises the further act of creating a prioritized list of communication networks (205, 210, 215, 220, or 225) by prioritizing those networks that make the data communication service available over those networks that fail to make the data communication service available.
8. A mobile communication device (115), comprising:
a cellular transceiver (211);
an antenna (216, 218) coupled to the cellular transceiver (211);
one or more processors (238) coupled to the cellular transceiver (211);
said one or more processors (238) being configured to select a communication network over which to communicate by:
performing a scanning operation to identify one or more communication networks (205, 210, 215, 220, or 225) that support a voice communication service in a geographic coverage area;
determining which communication networks (205, 210, 215, 220, or 225) make a data communication service available to the mobile communication device (115) by attempting to access the data communication service through the communication networks (205, 210, 215, 220, or 225);
selecting or assigning priority to a network that makes the date communication service available over a network that fails to make the data communication service available; and registering with the selected or prioritized communication network.
9. The mobile communication device (115) of claim 8, wherein the data communication service comprises at least one of an electronic mail service, a short messaging service, and an Internet access service.
10. The mobile communication device (115) of claim 8, wherein operation of the cellular transceiver is governed by Global System for Mobile and General Packet Radio service.
11. The mobile communication device (115) of claim 8, wherein the one or more processors (238) is further configured to determine which communication networks (205, 210, 215, 220, or 225) make a data communication service available is based on being granted or unable to access the data communication service over the communication network.
12. The mobile communication device (115) of claim 8, wherein the act of selecting or assigning priority to a communication network comprises the further act of creating a prioritized list of identified communication networks by prioritizing those networks that make the data communication service available over those networks that fail to make the data communication service available.
13. A method of creating a prioritized list of communication networks in a mobile communication device (115), the method comprising the acts of:
scanning to identify a plurality of communication networks (205, 210, 215, 220, or 225) which support a voice communication service in a given geographic region;
identifying one or more communication networks (205, 210, 215, 220, or 225) that make a data communication service available to the mobile communication device (115) based on attempts to access the data communication service through the communication networks (205, 210, 215, 220, or 225); and assigning a higher priority in the prioritized list to the one or more communication networks (205, 210, 215, 220, or 225) identified to make the data communication service available than those one or more communication networks (205, 210, 215, 220, or 225) not making the data communication service available.
14. The method of claim 13, wherein:
the prioritized list comprises a plurality of sub-lists; and the act of assigning comprises the further act of storing identities of the one or more communication networks (205, 210, 215, 220, or 225) identified to make the data communication service available in a higher priority sub-list of the prioritized list.
15. The method of claim 13, comprising the further acts of:
for each communication network:
identifying whether a communication network is a forbidden communication network; and wherein the act of assigning comprises the further act of assigning the communication network a higher priority in the prioritized list if the communication network is not a forbidden communication network.
16. The method of claim 15, wherein the act of identifying whether the communication network is a forbidden communication network comprises the further act of comparing the communication network to entries of a list of forbidden communication networks.
17. The method of claim 15, further comprising the act of:
adding the communication network to a forbidden network list if a communication failure occurs with the communication network.
18. The method of claim 15, further comprising the act of:
identifying whether the communication network is in the prioritized list;
reassigning a priority to the communication network in the prioritized list if the communication network is a forbidden communication network.
19. The method of claim 18, wherein:
wherein the prioritized list comprises a plurality of sub-lists;
wherein the act of reassigning priority to the communication network comprises the further acts of:

moving the communication network from one sub-list of the prioritized list to another sub-list of the prioritized list;
removing the communication network from the prioritized list; and adding the communication network to a different sub-list of the prioritized list.
20. The method of claim 13, further comprising the acts of:
for each communication network:
identifying whether the communication network is a preferred communication network; and if the communication network is a preferred communication, network and makes the data communication service available, then assigning the communication network a higher priority in the prioritized list than other communication networks that make the data communication service available but are not preferred communication networks.
21. The method of claim 20, wherein the act of identifying whether the communication network is a preferred communication network comprises the act of comparing the communication network to entries in a communication network list.
22. The method of claim 21, wherein the communication network list comprises one or more sub-lists established by one or more of:
a user of the mobile communication device (115);
a manufacturer of the mobile communication device (115); and an operator of a communication network.
23. The method of claim 22, wherein the preferred list comprises a plurality of sub-lists, including a sub-list established by a user, a sub-list established by a manufacturer, and a sub-list established by an operator of a communication network, and wherein the method further comprises the acts of:
for each communication. network:

wherein the act of determining if the communication network is a preferred communication network comprises the further act of determining on which sub-list of the communication network list the communication network is listed; and wherein the act of assigning comprises the further act of assigning the communication network a higher priority in the prioritized list than other communication networks if the network is on the sub-list established by the user.
24. The method of claim 13, further comprising the acts of:
for each communication network:
if the communication network supports the data communication service:
determining whether the communication network is known; and if the communication network is known: assigning the known communication network a higher priority in the prioritized list than any unknown communication network.
25. The method of claim 24, further comprising:
wherein the act of determining if the communication network is known comprises the further act of comparing the communication network to entries of a list of communication networks
26. The method of claim 24, wherein the prioritized list comprises a plurality of sub-lists and the act of assigning the communication network priority comprises the further act of:
placing the known communication network in a higher priority sub-list of known communication networks over a sub-list of unknown communication networks.
27. A method of claim 24, wherein the prioritized list comprises a plurality of sub-lists and the method comprises the further act of:
if the communication network is unknown and does not make the data communication service available:
assigning the communication network a lower priority in the prioritized list by placing it in a lower priority sub-list comprising known voice-capable communication networks under a sub-list of unknown communication networks that make the data communication service available.
28. The method of claim 13, wherein the communication networks comprise GSM/GPRS communication networks and GSM communication networks, where the GSM communication networks do not support the data communication service.
29. The method of claim 13, wherein the mobile communication device (115) comprises at least one selected from the group consisting of a cellular mobile station with GPRS capabilities, a wireless-enabled Personal Digital Assistant, a wireless Internet appliance, a data communication device with telephony capabilities, a portable e-mail pager, and a wireless modem.
30. The method of claim 14, wherein the prioritized list comprises four sub-lists including, in decreasing order of priority: a User Preferred Public Land Mobile Network List, an Operator Preferred Public Land Mobile Network List, an Unknown Voice/Data List, and an Unknown Voice-Only List.
31. The method of claim 16, wherein the list of forbidden communication networks comprises a Forbidden Public Land Mobile Network list.
32. The method of claim 24, wherein the list of communication networks that is used for comparing comprises a User Preferred Public Land Mobile Network List and an Operator Preferred Public Land Mobile Network list.
33. A method for creating a prioritized list of communication networks for a mobile communication device (125) comprising the acts of:
scanning to identify one or more communication networks which support a voice communication service in a given geographic region;
for each communication network identified:
determining whether the communication network is a known communication network of the mobile communication device;

determining whether the communication network makes a data communication service available to the mobile communication device (115) based on an attempt to access the data communication service through the communication network; and if the communication network is a known communication network and makes the data communication service available to the mobile communication device (115), then assigning the communication network a higher priority in the prioritized list than a communication network that is an unknown communication network.
34. The method of claim 33, wherein:
the act of determining if the communication network is known comprises comparing the communication network to entries in a communication network list.
35. The method of claim 33, wherein:
the prioritized list comprises a plurality of sub-lists including one or more sub-lists established by the user of the mobile communication device (115), an operator of a communication network, and a manufacturer of the mobile communication device (115);
and the act of assigning the communication network a higher priority in the prioritized list comprises the act of placing the communication network in a higher priority sub-list of the prioritized list.
36. The method of claim 33, comprising the further acts of:
wherein the data communication service is unavailable if the mobile communication device (115) is unable to access the data communication service in response to the attempt; and wherein the data communication service is available if the mobile communication device (115) is able to access the data communication service in response to the attempt.
37. The method of claim 36, wherein:
the prioritized list comprises a plurality of sub-lists; and the act of assigning higher priority to a known communication network that makes the data communication service available comprises the further act of placing the network in a higher priority sub-list of the prioritized list.
38. A method of selecting a communication network by a mobile communication device (115) comprising the acts of:
waiting for an expiration of a network rescan timer;
after the expiration of the network rescan timer:
performing a scanning operation to identify one or more communication networks (205, 210, 215, 220, or 225) that support a voice communication service in a geographic coverage area of the mobile communication device (115);
determining whether any of the communication networks (205, 210, 215, 220, or 225) make a data communication service available to the mobile communication device (115) by making an attempt to access the data communication service through the communication networks (205, 210, 215, 220, or 225);
if a communication network makes the data communication service available to the mobile communication device (115) as identified by the act of determining: assigning priority to it over a network that fails to make the data communication service available; and if no communication network makes the data communication service available to the mobile communication device (115), resetting the network rescan timer.
CA2504497A 2002-10-30 2003-10-30 Methods and device for preferably selecting a communication network which makes data service available Expired - Lifetime CA2504497C (en)

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Applications Claiming Priority (3)

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US42212402P 2002-10-30 2002-10-30
US60/422,124 2002-10-30
PCT/CA2003/001661 WO2004040931A2 (en) 2002-10-30 2003-10-30 Methods and device for preferably selecting a communication network which makes data service available

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EP (1) EP1566071B1 (en)
JP (1) JP4179473B2 (en)
KR (1) KR100742580B1 (en)
CN (2) CN1709007B (en)
AT (1) ATE379945T1 (en)
AU (1) AU2003275872B2 (en)
BR (1) BR0315841A (en)
CA (2) CA2750998C (en)
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HK (1) HK1078724A1 (en)
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