Apparatus, system and method of fast basic service set (BSS) transition (FT)

Patent metadata

Field	Value
Publication number	US-10212630-B2
Application number	US-201615281093-A
Country	US
Kind code	B2
Filing date	Sep 30, 2016
Priority date	Feb 3, 2016
Publication date	Feb 19, 2019
Grant date	Feb 19, 2019

Abstract

Some demonstrative embodiments include apparatuses, devices, systems and methods of a Fast Basic Service Set (BSS) Transition (FT). For example, a wireless station (STA) may be configured to process at least one frame from at least one advertiser Access Point (AP) over a first frequency band while the STA is associated with a current AP over the first frequency band, the frame including a Multiband Mobility Domain Element (MMDE) corresponding to a target AP; and to transmit to the advertiser AP an FT authentication request frame over the first frequency band to request an FT from the current AP on the first frequency band to the target AP on the second frequency band, the FT request frame including the MMDE corresponding to the target AP.

First claim

What is claimed is:

1. An apparatus comprising logic and circuitry configured to cause a wireless station (STA) to:
process at least one frame from at least one advertiser Access Point (AP) over a first frequency band while the STA is associated with a current AP over the first frequency band, the frame comprising a Multiband Mobility Domain Element (MMDE) corresponding to a target AP, the MMDE comprising a band Identifier (ID) of a second frequency band, a Basic Service Set (BSS) ID (BSSID) of a BSS of the target AP on the second frequency band, a Mobility Domain ID (MDID) of a Mobility Domain (MD) to which the current AP, the advertiser AP, and the target AP belong, and a Fast BSS Transition (FT) field comprising FT information corresponding to the target AP; and
transmit to the advertiser AP an FT authentication request frame over the first frequency band to request an FT from the current AP on the first frequency band to the target AP on the second frequency band, the FT authentication request frame comprising the MMDE corresponding to the target AP.

2. The apparatus of claim 1 configured to cause the STA to process an FT authentication response from the advertiser AP, the FT authentication response comprising the MMDE corresponding to the target AP.

3. The apparatus of claim 2 configured to cause the STA to re-associate with the target AP over the second frequency band based on the FT authentication response.

4. The apparatus of claim 1 , wherein the FT field comprises an FT capability and policy field comprising an FT over a Distribution System (DS) field, and a resource request protocol capability field.

5. The apparatus of claim 1 , wherein the MMDE comprises a channel ID of a channel to communicate with the target AP over the second frequency band.

6. The apparatus of claim 1 , wherein the advertiser AP comprises the current AP.

7. The apparatus of claim 1 , wherein the advertiser AP is different from the current AP.

8. The apparatus of claim 1 , wherein the advertiser AP comprises the target AP, the FT comprises an over-the-air FT.

9. The apparatus of claim 1 , wherein the target AP is different from the advertiser AP, the FT comprises an FT over a Distribution System (DS) between the advertiser AP and the target AP.

10. The apparatus of claim 1 , wherein one of the first and second frequency bands comprises a directional frequency band, and another one of the first and second frequency bands comprises a non-directional frequency band.

11. The apparatus of claim 1 , wherein the frame comprises a beacon frame or a probe response frame.

12. The apparatus of claim 1 comprising one or more directional antennas, a memory, and a processor.

13. A product comprising one or more tangible computer-readable non-transitory storage media comprising computer-executable instructions operable to, when executed by at least one computer processor, enable the at least one computer processor to implement operations at a wireless station (STA), the operations comprising:
processing at least one frame from at least one advertiser Access Point (AP) over a first frequency band while the STA is associated with a current AP over the first frequency band, the frame comprising a Multiband Mobility Domain Element (MMDE) corresponding to a target AP, the MMDE comprising a band Identifier (ID) of a second frequency band, a Basic Service Set (BSS) ID (BSSID) of a BSS of the target AP on the second frequency band, a Mobility Domain ID (MDID) of a Mobility Domain (MD) to which the current AP, the advertiser AP, and the target AP belong, and a Fast BSS Transition (FT) field comprising FT information corresponding to the target AP; and
transmitting to the advertiser AP an FT authentication request frame over the first frequency band to request an FT from the current AP on the first frequency band to the target AP on the second frequency band, the FT authentication request frame comprising the MMDE corresponding to the target AP.

14. The product of claim 13 , wherein the operations comprise processing an FT authentication response from the advertiser AP, the FT authentication response comprising the MMDE corresponding to the target AP.

15. An apparatus comprising logic and circuitry configured to cause an advertiser Access Point (AP) to:
transmit a frame over a first frequency band, the frame comprising a Multiband Mobility Domain Element (MMDE) corresponding to a target AP, the MMDE comprising a band Identifier (ID) of a second frequency band, a Basic Service Set (BSS) ID (BSSID) of a BSS of the target AP on the second frequency band, a Mobility Domain ID (MDID) of a Mobility Domain (MD) to which the advertiser AP and the target AP belong, and a Fast BSS Transition (FT) field comprising FT information corresponding to the target AP;
process an FT authentication request frame from a wireless station (STA) over the first frequency band, the FT authentication request frame to request an FT from a current AP on the first frequency band, which belongs to the MD, to the target AP on the second frequency band, the FT authentication request frame comprising the MMDE corresponding to the target AP; and
transmit to the STA an FT authentication response, the FT authentication response comprising the MMDE corresponding to the target AP.

16. The apparatus of claim 15 , wherein the FT field comprises an FT capability and policy field comprising an FT over a Distribution System (DS) field, and a resource request protocol capability field.

17. The apparatus of claim 15 , wherein the MMDE comprises a channel ID of a channel to communicate with the target AP over the second frequency band.

18. The apparatus of claim 15 , wherein the advertiser AP comprises the current AP.

19. The apparatus of claim 15 , wherein the advertiser AP is different from the current AP.

20. The apparatus of claim 15 , wherein the advertiser AP comprises the target AP, the FT comprises an over-the-air FT.

21. The apparatus of claim 15 , wherein the target AP is different from the advertiser AP, the FT comprises an FT over a Distribution System (DS) between the advertiser AP and the target AP.

22. The apparatus of claim 15 , wherein one of the first and second frequency bands comprises a directional frequency band, and another one of the first and second frequency bands comprises a non-directional frequency band.

23. The apparatus of claim 15 comprising one or more directional antennas, a memory, and a processor.

24. A product comprising one or more tangible computer-readable non-transitory storage media comprising computer-executable instructions operable to, when executed by at least one computer processor, enable the at least one computer processor to implement operations at an advertiser Access Point (AP), the operations comprising:
transmitting a frame over a first frequency band, the frame comprising a Multiband Mobility Domain Element (MMDE) corresponding to a target AP, the MMDE comprising a band Identifier (ID) of a second frequency band, a Basic Service Set (BSS) ID (BSSID) of a BSS of the target AP on the second frequency band, a Mobility Domain ID (MDID) of a Mobility Domain (MD) to which the advertiser AP and the target AP belong, and a Fast BSS Transition (FT) field comprising FT information corresponding to the target AP;
processing an FT authentication request frame from a wireless station (STA) over the first frequency band, the FT authentication request frame to request an FT from a current A

Assignees

• Intel Ip Corp

Inventors

• Trainin Solomon B
• Glik Michael
• Levy Elad
• Brainman Igor
• Tchigevsky Izoslav

Classifications

• H04W12/06 Primary

  Authentication · CPC title

• H04W36/08 Primary

  Reselecting an access point · CPC title

• H04W48/10

  using broadcasted information · CPC title

• H04W36/24

  Reselection being triggered by specific parameters · CPC title

• H04W36/0072

  of resource information of target access point · CPC title