Incorporation of a notification in a network name

• US 8,681,769 B2
• Filed: 05/14/2010
• Issued: 03/25/2014
• Est. Priority Date: 05/14/2010
• Status: Active Grant

• Current Assignee: Malikie Innovations Limited (Key Patent Innovations Limited)
• Original Assignee: Blackberry Limited
• Inventors: Rawlins, Rudy, Kholaif, Ahmad Mohammad, McCann, Stephen
• Primary Examiner(s): Pham, Brenda H
• Application Number:
  US12/780,614
• Publication Number:
  US 20110280230A1
• Time in Patent Office: 1,411 Days
• Field of Search: 370/389, 370/349, 370/310.2, 370/338
• US Class Current: 370/349
• CPC Class Codes: H04W 4/90 Services for handling of emergency or hazardous situations, e.g. earthquake and tsunami warning systems [ETWS]
• CPC Class Codes: H04W 48/12 using downlink control channel
• CPC Class Codes: H04W 76/50 for emergency connections

Abstract

An Access Point (AP) advertises the availability of notifications, and this advertisement may be received and interpreted by stations (STAs), both by associated STAs and by non-associated STAs. Upon being informed of the availability of the notification message, a STA may be able to identify the notification message by analyzing the advertisement. If the contents of the notification message comprise a control message, the STA may act on the control message in a way that influences the STA'"'"'s behavior. If the contents of the notification message indicate restrictions imposed by the AP, the STA may determine, in view of the restrictions, not to attempt association with the AP.

Claims

1. A method of handling a downlink frame in a wireless local area network (WLAN) station (STA), the method comprising:

receiving the downlink frame from another WLAN STA, wherein the downlink frame includes a network name; and

identifying a notification message from the network name; and

attempting to retrieve additional information regarding the notification message from the other WLAN STA.

2. The method as claimed in claim 1, wherein attempting to retrieve the additional information comprises:

transmitting in a manner receivable by the other WLAN STA an Access Network Query Protocol (ANQP) query that includes the notification message.

3. The method as claimed in claim 1, further comprising:

handling the notification message.

4. The method as claimed in claim 3, wherein handling the notification message comprises acting on a control message comprised in the notification message.

5. A method of handling a downlink frame in a wireless local area network (WLAN) station (STA), the method comprising:

receiving the downlink frame from another WLAN STA, wherein the downlink frame includes a network name;

identifying a notification message from the network name that includes comparing the network name to network names of WLAN connection profiles stored in the WLAN STA; and

handling the notification message by acting on a control message comprised in the notification message.

6. The method of claim 5 wherein the control message comprises a radio control, further wherein the acting on the control message comprises switching off a radio of the WLAN STA.

7. The method of claim 5 wherein the control message comprises a silence control, further wherein the acting on the control message comprises muting an audio output of the WLAN STA.

8. A method of handling a downlink frame in a wireless local area network (WLAN) station (STA), the method comprising:

receiving the downlink frame from another WLAN STA, wherein the downlink frame includes a network name; and

identifying a notification message from the network name; and

handling the notification message by acting on a control message comprised in the notification message.

9. The method of claim 8 wherein the control message comprises a radio control, further wherein the acting on the control message comprises switching off a radio of the WLAN STA.

10. The method of claim 8 wherein the control message comprises a silence control, further wherein the acting on the control message comprises muting an audio output of the WLAN STA.

11. A wireless local area network (WLAN) station (STA) comprising:

an antenna;

a WLAN interface coupled to the antenna;

a processor; and

a memory coupled to the processor, the memory storing an application which, when executed by the processor, identifies a notification message from the network name included in a downlink frame received from another WLAN STA via the WLAN interface, wherein the memory stores a control application which, when executed by the processor, acts on a control message comprised in the notification message.

12. The WLAN STA of claim 11 wherein the control message comprises a radio control, further wherein the acts on the control message comprises switching off a radio of the WLAN STA.

13. The WLAN STA of claim 11 wherein the control message comprises a silence control, further wherein the acts on the control message comprises muting an audio output of the WLAN STA.