SERVICE INFORMATION EXCHANGE IN WIRELESS NETWORK

• US 20110010246A1
• Filed: 07/08/2009
• Published: 01/13/2011
• Est. Priority Date: 07/08/2009
• Status: Active Grant

• Current Assignee: Nokia Technologies Oy (Nokia Corporation)
• Original Assignee: Nokia Corporation
• Inventors: Kasslin, Mika, Bajko, Gabor, Marin, Janne
• Granted Patent: US 8,775,633 B2
• Time in Patent Office: Days
• US Class Current: 705/14.64
• CPC Class Codes: G06Q 30/0267 Wireless devices
• CPC Class Codes: H04L 67/51 Discovery or management thereof, e.g. service location protocol [SLP] or web services
• CPC Class Codes: H04W 4/00 Services specially adapted for wireless communication networks; Facilities therefor
• CPC Class Codes: H04W 48/08 Access restriction or access information delivery, e.g. discovery data delivery signalling during connection H04W76/00
• CPC Class Codes: H04W 48/18 Selecting a network or a communication service
• CPC Class Codes: H04W 74/002 Transmission of channel access control information
• CPC Class Codes: H04W 74/004 in the uplink, i.e. towards network
• CPC Class Codes: H04W 74/006 in the downlink, i.e. towards the terminal

Abstract

Method, apparatus, and computer program product embodiments of the invention are disclosed to automatically advertise a change in service offering of a wireless first device in wireless networks. In an example embodiment of the invention, if there is a change in service offering of the first device that is connected to a wireless second device, the first device automatically generates a reassociation request frame and transmits it to the second device. In addition to the standard processing of the reassociation request frame, the second device considers the received reassociation request frame as a trigger to respond by transmitting a generic advertisement service request to the first device. The first device will then have an opportunity to transmit its updated and up-to-date service description to the second device in a generic advertisement service response frame. The second device buffers the first device'"'"'s updated service description and makes it available to other wireless devices searching the network for services, to facilitate network selection.

Claims

1. A method, comprising:

changing a service offering in a device that is wirelessly connected to a second device;

generating in the first device a reassociation request frame in response to the change in the service offering;

transmitting the reassociation request frame to the second device;

receiving from the second device a generic advertisement service request in response to the transmitted reassociation request frame; and

transmitting a generic advertisement service response frame to the second device, with an updated service description corresponding to the change in the service offering.

2. The method of claim 1, further comprising:

said reassociation request frame including a trigger field to trigger the second device to issue the generic advertisement service request.

3. The method of claim 1, further comprising:

said device being a peer-to-peer wireless client device and said second device being a peer-to-peer wireless group owner device in a peer-to-peer wireless network.

4. An apparatus, comprising:

a processor configured to change a service offering;

said processor further configured to generate a reassociation request frame in response to the change in the service offering;

a transceiver configured to transmit the reassociation request frame to a wirelessly connected device ;

said transceiver further configured to receive from the wirelessly connected device, a generic advertisement service request in response to the transmitted reassociation request frame; and

said transceiver further configured to transmit a generic advertisement service response frame to the wirelessly connected device, with an updated service description corresponding to the change in the service offering.

5. The apparatus of claim 4, further comprising:

said reassociation request frame including a trigger field to trigger the wirelessly connected device to issue the generic advertisement service request.

6. The apparatus of claim 4, further comprising:

said apparatus device being a peer-to-peer wireless client device and said wirelessly connected device being a peer-to-peer wireless group owner device in a peer-to-peer wireless network.

7. A computer readable medium storing program instructions, which when executed by a computer processor, perform the steps comprising:

changing a service offering in a device that is wirelessly connected to a second device;

generating a reassociation request frame in response to the change in the service offering;

transmitting the reassociation request frame to the second device;

receiving from the second device a generic advertisement service request in response to the transmitted reassociation request frame; and

transmitting a generic advertisement service response frame to the second device, with an updated service description corresponding to the change in the service offering.

8. The computer readable medium of claim 7, further comprising:

said reassociation request frame including a trigger field to trigger the second device to issue the generic advertisement service request.

9. A method, comprising:

forming a wireless network with one or more devices;

receiving a reassociation request frame from at least one of the one or more devices;

transmitting to said at least one device a generic advertisement service request in response to the received reassociation request frame;

receiving a generic advertisement service response frame from said at least one device, with an updated service description; and

storing the updated service description.

10. The method of claim 9, further comprising:

providing the stored updated service description to any device requesting such information.

11. The method of claim 10, further comprising:

said received reassociation request frame including a trigger field to trigger issue of the generic advertisement service request.

12. The method of claim 10, further comprising:

said device being a peer-to-peer wireless group owner device and said at least one device being a peer-to-peer wireless client device in a peer-to-peer wireless network .

13. An apparatus, comprising:

a processor;

a memory; and

a transceiver configured to form a network with one or more devices;

said transceiver further configured to receive a reassociation request frame from at least one of the one or more devices;

said transceiver further configured to transmit to said at least one device a generic advertisement service request in response to the received reassociation request frame;

said transceiver further configured to receive a generic advertisement service response frame from said at least one device, with an updated service description; and

said processor further configured to cause the memory to store the updated service description.

14. The apparatus of claim 13, further comprising:

said transceiver further configured to provide the stored updated service description to any device requesting such information.

15. The apparatus of claim 13, further comprising:

said received reassociation request frame including a trigger field to trigger issue of the generic advertisement service request.

16. The apparatus of claim 13, further comprising:

said apparatus being a peer-to-peer wireless group owner device and said at least one device being a peer-to-peer wireless client device in a peer-to-peer wireless network.

17. A computer readable medium storing program instructions, which when executed by a computer processor, perform the steps comprising:

forming a wireless network with one or more devices;

receiving a reassociation request frame from at least one of the one or more devices;

transmitting to said at least one device a generic advertisement service request in response to the received reassociation request frame;

receiving a generic advertisement service response frame from said at least one device, with an updated service description; and

storing the updated service description.

18. The computer readable medium of claim 17, storing program instructions, which when executed by a computer processor, further performing the step comprising:

providing the stored updated service description to any device requesting such information.

19. The computer readable medium of claim 17, further comprising:

said received reassociation request frame including a trigger field to trigger issue of the generic advertisement service request.

20. The computer readable medium of claim 17, further comprising:

said computer processor being in a device that is a peer-to-peer wireless group owner device and said at least one device being a peer-to-peer wireless client device in a peer-to-peer wireless network .

21. An apparatus, comprising:

a processor;

at least one memory including at least one computer program code;

the at least one memory and the at least one computer program code configured to, with the processor, cause the apparatus at least to;

change a service offering;

generate a reassociation request frame in response to the change in the service offering;

transmit the reassociation request frame to a wirelessly connected device ;

receive a generic advertisement service request from the wirelessly connected device in response to the transmitted reassociation request frame; and

transmit a generic advertisement service response frame to the wirelessly connected device, with an updated service description corresponding to the change in the service offering.

22. The apparatus of claim 21, further comprising:

said reassociation request frame including a trigger field to trigger the wirelessly connected device to issue the generic advertisement service request.

23. An apparatus, comprising:

a processor;

at least one memory including at least one computer program code;

the at least one memory and the at least one computer program code configured to, with the processor, cause the apparatus at least to;

form a network with one or more devices;

receive a reassociation request frame from at least one of the one or more devices;

transmit a generic advertisement service request to said at least one device in response to the received reassociation request frame;

receive a generic advertisement service response frame from said at least one device, with an updated service description; and

store in the at least one memory to store the updated service description.

24. The apparatus of claim 23, further comprising:

said processor further configured to provide the stored updated service description to any device requesting such information.

25. The apparatus of claim 23, further comprising:

said received reassociation request frame including a trigger field to trigger issue of the generic advertisement service request.