Methods and Devices for Accessing a Wireless Local Area Network

• US 20150043557A1
• Filed: 03/19/2013
• Published: 02/12/2015
• Est. Priority Date: 03/20/2012
• Status: Abandoned Application

• Current Assignee: Giesecke + Devrient Mobile Security GmBH (Giesecke & Devrient GmbH)
• Original Assignee: Giesecke & Devrient GmbH
• Inventors: Ostling, Leif
• Application Number:
  US14/386,439
• Publication Number:
  US 20150043557A1
• Time in Patent Office: Days
• US Class Current: 370/338
• CPC Class Codes: H04W 48/14 using user query or user detection
• CPC Class Codes: H04W 48/16 Discovering, processing access restriction or access information
• CPC Class Codes: H04W 48/18 Selecting a network or a communication service
• CPC Class Codes: H04W 84/12 WLAN [Wireless Local Area Networks]

Abstract

A method in a mobile station comprises searching for WLANs with a WLAN module implemented in the mobile station; communicating information about the WLANs found in the previous step to an administration unit configured to provide WLAN access data for a plurality of WLANs; receiving WLAN access data for at least one of the WLANs for which information was sent to the administration unit in the previous step; and accessing one of the WLANs using the WLAN access data provided by the administration unit. The mobile station communicates with the administration unit via a cellular communications network operated by a mobile network operator (MNO). The MNO can remotely manage the WLAN access data available on the mobile station with the administration unit and to which available WLANs the mobile station can attach.

Claims

1-15. -15. (canceled)

16. Method for accessing a WLAN by means of a mobile station, wherein the method comprises the following steps in the mobile station:

searching for available WLANs by means of a WLAN module implemented in the mobile station;

communicating information about the available WLANs found in the previous step to an administration unit configured to provide WLAN access data for a plurality of WLANs;

receiving WLAN access data for at least one of the available WLANs for which information was sent to the administration unit in the previous step; and

accessing one of the available WLANs using the WLAN access data provided by the administration unit.

17. The method of claim 16, wherein the mobile station comprises a secure element for securely storing data that allows the mobile station to attach to and communicate with a cellular communications network, wherein the cellular communications network is a GSM, UMTS, LTE or CDMA network and the communication between the mobile station and the administration unit via the cellular communications network is done by SMS protocol (Short Message Service), USSD protocol (Unstructured Supplementary Service Data) or a similar text message protocol.

18. The method of claim 17, wherein the secure element is a subscriber identity module (SIM), UICC, USIM, R-UIM or ISIM.

19. The method of claim 17, wherein the WLAN module is part of the secure element of the mobile station for securely storing data that allows the mobile station to attach to and communicate with the cellular communications network.

20. The method of claim 16, wherein the mobile station is configured to access a WLAN established by an access point that is configured according to the standard IEEE 802.11 and/or one or more of its sub-standards, such as IEEE 802.11b, 802.11a, 802.11g, 802.11i, 802.11n, and 802.11ac, the Bluetooth standard (IEEE 802.15.1) or the WiMAX standard (IEEE 802.16).

21. The method of claim 16, wherein the administration unit is configured to provide the mobile station with a preferred WLAN or a prioritized list of WLANs selected out of the list of available WLANs such that the mobile station will try to attach to the available WLANs according to the prioritized list, wherein the administration unit is configured to create this prioritized list of WLANs on the basis of selection rules implemented in the administration unit.

22. The method of claim 16, wherein the WLAN access data to be provided by the administration unit to the mobile station can be retrieved from a database of the administration unit storing up-to-date WLAN access data for a plurality of WLANs and/or by requesting the WLAN access data from the corresponding access points.

23. The method of claim 16, wherein the mobile station is configured to actively probe for available WLANs by emitting a broadcast signal to cause any available WLAN access points within the communication range of the mobile station to emit a beacon frame including information about the respective WLAN and/or to passively scan for available WLANs by listening for beacon frames being periodically transmitted by the access points of WLANs within the communication range of the mobile station.

24. The method of claim 16, wherein an application is implemented on the mobile station with its secure element, configured to cause the mobile station to search for available WLANs, to communicate information about the discovered WLANs to the administration unit, and/or to access one of the WLANs using the WLAN access data provided by the administration unit.

25. The method of claim 24, wherein the application is configured to cause the display of a message on a display of the mobile station informing the user of the mobile station about the preferred WLAN or the prioritized list of WLANs selected by the administration unit and wherein, the application is further configured such that the user of the mobile station has to confirm the attachment to the preferred WLAN or one of the WLANs from the prioritized list of WLANs selected by the administration unit, before the mobile station can try to attach thereto.

26. The method of claim 16, wherein the information about the available WLANs communicated to the administration unit comprises for each respective WLAN a WLAN specific identifier, such as the SSID (Service Set Identifier), the signal strength of the WLAN, quality of service capabilities (as defined by IEEE 802.11e), and/or information about the employed security mechanism, such as WEP, WAP or WAP2.

27. The method of claim 16, wherein the WLAN access data provided from the administration unit to the mobile station comprises for each respective WLAN a WLAN specific identifier, such as the SSID (Service Set Identifier), a user name, a user password and/or any secret keys required for successfully attaching the mobile station to a respective WLAN, wherein the WLAN access data is sent from the administration unit over the cellular communications network to the mobile station in encrypted form and is decrypted within the secure element.

28. Method for providing a mobile station with WLAN access data from an administration unit, wherein the method comprises the following steps in the administration unit:

receiving from the mobile station information about available WLANs in the vicinity of the mobile station that have been found by means of a WLAN module implemented in the mobile station;

obtaining WLAN access data for at least one of the available WLANs for which information was received by the administration unit from the mobile station in the previous step; and

sending the WLAN access data to the mobile station.

29. The method of claim 28, wherein the mobile station comprises a secure element for securely storing data that allows the mobile station to attach to and communicate with a cellular communications network, wherein the cellular communications network is a GSM, UMTS, LTE or CDMA network and the communication between the mobile station and the administration unit via the cellular communications network is done by SMS protocol (Short Message Service), USSD protocol (Unstructured Supplementary Service Data) or a similar text message protocol.

30. The method of claim 29, wherein the secure element is a subscriber identity module (SIM), UICC, USIM, R-UIM or ISIM.

31. The method of claim 29, wherein the WLAN module is part of the secure element of the mobile station for securely storing data that allows the mobile station to attach to and communicate with the cellular communications network.

32. The method of claim 28, wherein the mobile station is configured to access a WLAN established by an access point that is configured according to the standard IEEE 802.11 and/or one or more of its sub-standards, such as IEEE 802.11b, 802.11a, 802.11g, 802.11i, 802.11n, and 802.11ac, the Bluetooth standard (IEEE 802.15.1) or the WiMAX standard (IEEE 802.16).

33. The method of claim 28, wherein the administration unit is configured to provide the mobile station with a preferred WLAN or a prioritized list of WLANs selected out of the list of available WLANs such that the mobile station will try to attach to the available WLANs according to the prioritized list, wherein the administration unit is configured to create this prioritized list of WLANs on the basis of selection rules implemented in the administration unit.

34. The method of claim 28, wherein the WLAN access data to be provided by the administration unit to the mobile station can be retrieved from a database of the administration unit storing up-to-date WLAN access data for a plurality of WLANs and/or by requesting the WLAN access data from the corresponding access points.

35. The method of claim 28, wherein the mobile station is configured to actively probe for available WLANs by emitting a broadcast signal to cause any available WLAN access points within the communication range of the mobile station to emit a beacon frame including information about the respective WLAN and/or to passively scan for available WLANs by listening for beacon frames being periodically transmitted by the access points of WLANs within the communication range of the mobile station.

36. The method of claim 28, wherein an application is implemented on the mobile station with its secure element, configured to cause the mobile station to search for available WLANs, to communicate information about the discovered WLANs to the administration unit, and/or to access one of the WLANs using the WLAN access data provided by the administration unit.

37. The method of claim 36, wherein the application is configured to cause the display of a message on a display of the mobile station informing the user of the mobile station about the preferred WLAN or the prioritized list of WLANs selected by the administration unit and wherein the application is further configured such that the user of the mobile station has to confirm the attachment to the preferred WLAN or one of the WLANs from the prioritized list of WLANs selected by the administration unit, before the mobile station can try to attach thereto.

38. The method of claim 28, wherein the information about the available WLANs communicated to the administration unit comprises for each respective WLAN a WLAN specific identifier, such as the SSID (Service Set Identifier), the signal strength of the WLAN, quality of service capabilities (as defined by IEEE 802.11e), and/or information about the employed security mechanism, such as WEP, WAP or WAP2.

39. The method of claim 28, wherein the WLAN access data provided from the administration unit to the mobile station comprises for each respective WLAN a WLAN specific identifier, such as the SSID (Service Set Identifier), a user name, a user password and/or any secret keys required for successfully attaching the mobile station to a respective WLAN, wherein the WLAN access data is sent from the administration unit over the cellular communications network to the mobile station in encrypted form and is decrypted within the secure element.

40. Mobile station configured to communicate via a cellular communications network, wherein the mobile station is configured and/or comprises respective means for:

searching for available WLANs by means of a WLAN module implemented in the mobile station;

communicating information about the available WLANs found by the WLAN module to an administration unit configured to provide WLAN access data for a plurality of WLANs;

receiving WLAN access data for at least one of the available WLANs for which information was sent to the administration unit; and

accessing one of the WLANs using the WLAN access data provided by the administration unit.

41. Administration unit that is configured and/or comprises respective means for:

receiving from a mobile station information about available WLANs in the vicinity of the mobile station that have been found by means of a WLAN module implemented in the mobile station;

obtaining WLAN access data for at least one of the WLANs for which information was received by the administration unit from the mobile station; and

sending the WLAN access data to the mobile station.