Per user uplink medium access control on a Wi-Fi communication network

• US 10,225,764 B2
• Filed: 09/24/2015
• Issued: 03/05/2019
• Est. Priority Date: 12/05/2005
• Status: Active Grant

• Current Assignee: Fortinet Inc.
• Original Assignee: Fortinet Inc.
• Inventors: Ram, Mohan, Han, Sung-Wook, Dunsbergen, Berend, Bharghavan, Vaduvur, Epstein, Joseph
• Primary Examiner(s): Hsu, Alpus
• Assistant Examiner(s): Thai, Camquyen
• Application Number:
  US14/864,802
• Publication Number:
  US 20160088523A1
• Time in Patent Office: 1,258 Days
• Field of Search: 709225, 709229, 713201, 370338, 370329, 37039521
• CPC Class Codes: H04L 43/08 Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters
• CPC Class Codes: H04L 43/50 Testing arrangements
• CPC Class Codes: H04W 16/10 Dynamic resource partitioning
• CPC Class Codes: H04W 36/22 for handling the traffic
• CPC Class Codes: H04W 36/38 by fixed network equipment
• CPC Class Codes: H04W 48/02 Access restriction performed under specific conditions
• CPC Class Codes: H04W 48/14 using user query or user detection
• CPC Class Codes: H04W 72/0446 Resources in time domain, e.g. slots or frames
• CPC Class Codes: H04W 72/29 between an access point and the access point controlling device
• CPC Class Codes: H04W 72/51 based on terminal or device properties
• CPC Class Codes: H04W 74/006 in the downlink, i.e. towards the terminal
• CPC Class Codes: H04W 74/06 using polling
• CPC Class Codes: H04W 88/08 Access point devices

Abstract

Uplink medium access control on per-wireless device level for a specific user. An access point sends a beacon frame to a wireless device. The beacon frame includes a BSSID that is unique to the wireless device. The beacon frame also includes embedded uplink configurations specifying uplink medium access for the wireless device. In one embodiment, a controller recognizes a device or user associated with the device, and sends corresponding uplink configurations for embedding in a subsequent beacon frame.

Claims

1. A computer-implemented method for controlling uplink medium access of stations connected to a wireless network, comprising:

detecting a station with a specific user attempting to associate with an access point;

determining a level of uplink access for the station from a network perspective, based on the specific user;

selecting a BSSID (Basic Service Set Identifier) for the station with uplink configurations corresponding to the level of uplink access for the specific user;

generating a modified beacon frame with selected uplink configurations and the selected BSSID to the station, wherein the selected uplink configurations specify medium access parameters specifically for the station, the generating comprising embedding the uplink configurations in a Quiet Element field of the modified beacon frame, and wherein embedding the uplink configurations in the Quiet Element field comprises determining a field value for at least one of Quiet Count, Quiet Period, Quiet Duration and Quiet Offset in accordance with the level of uplink medium access; and

sending the modified beacon frame to the station.

2. The method of claim 1, further comprising:

embedding the uplink configurations in at least one of an EDCA (enhanced distributed channel access) Parameter Set field and a ECWmin (exponential form of contention window minimum) field of the modified beacon frame.

3. The method of claim 2, wherein embedding the uplink configurations in the EDCA Parameter Set fields of the beacon comprises:

determining a value for at least one of an AIFS (arbitration inter-frame space) field and a ECWmin field in accordance with the desired level of uplink medium access for the specific user.

4. The method of claim 1, wherein the BSSID is unique to the specific user among a plurality of BSSIDs.

5. The method of claim 1, further comprising:

receiving the uplink configurations from a controller that communicates with a plurality of access points, and at least one other access point uses the BSSID to communicate with the station, the controller determining which access point to send the uplink configurations.

6. The method of claim 1, further comprising:

receiving an upload from a second station;

responsive to the upload, sending a beacon frame to the second station, the beacon frame comprising a BSSID that is unique to the second station, and a modified beacon frame that is unique to the second station, the modified beacon frame comprising data associated with unique uplink configurations that are specific to the second station; and

receiving an additional upload from the second station that complies with the uplink configurations of the modified beacon frame.

7. The method of claim 1, wherein the station complies with a wireless protocol without native uplink transmission control.

8. The method of claim 1, wherein the wireless network comprises an IEEE 802.11 type of network.

9. The method of claim 1, further comprising:

receiving an unregulated transmission from the station,

wherein sending the uplink configurations to the station is responsive to the unregulated transmission exceeding a threshold, the threshold comprising at least one of an amount of bandwidth, an amount of throughput, and a number of media accesses, and

wherein receiving the transmission from the station comprises receiving a regulated transmission.

10. The method of claim 1, further comprising:

receiving an unregulated transmission from the station,

wherein sending the uplink configurations to the station is responsive a dynamic amount of unregulated network traffic exceeding a threshold, and

wherein receiving the transmission from the station comprises receiving a regulated transmission.

11. The method of claim 1, wherein the modified beacon frame comprises a field that determines an amount of time the station waits before accessing the wireless network.

12. The method of claim 1, wherein the modified beacon frame comprises a field that specifies an amount of slots the station waits until accessing the wireless network.

13. The method of claim 12, wherein the field also comprises a field that causes the station to wait a random number of slots in addition to the specified number of slots before accessing the wireless network.

14. The method of claim 1, wherein sending the beacon frame comprises sending the modified beacon frame by an access point, the method further comprises:

receiving commands from a controller that manages a plurality of access points including the first access point and a second access point; and

handing-off the station from the first access point to the second access point, wherein the second access point sends beacons using the same BSSID, and wherein the station continues to comply with the uplink configurations after the hand-off.

15. The method of claim 1, further comprising:

determining that the station is a guest; and

setting the media access based on the station being a guest, the media access for a guest having a different quality of service than a non-guest based on the uplink configurations.

16. A non-transitory computer-readable medium storing instructions that, when executed by a processor, perform a method for controlling uplink device access to a wireless network, the method comprising:

detecting a station with a specific user attempting to associate with an access point;

determining a level of uplink access for the station from a network perspective, based on the specific user;

selecting a BSSID (Basic Service Set Identifier) for the station with uplink configurations corresponding to the level of uplink access for the specific user;

generating a modified beacon frame with selected uplink configurations and the selected BSSID to the station, wherein the selected uplink configurations specify medium access parameters specifically for the station, the generating comprising embedding the uplink configurations in a Quiet Element field of the modified beacon frame, and wherein embedding the uplink configurations in the Quiet Element field comprises determining a field value for at least one of Quiet Count, Quiet Period, Quiet Duration and Quiet Offset in accordance with the level of uplink medium access; and

sending the modified beacon frame to the station.

17. An access point device to control uplink device access to a wireless network, the access point comprising:

a processor; and

a memory storing source code executed by the processor, storing;

a first module to detect a station with a specific user attempting to associate with an access point;

a second module to determine a level of uplink access for the station from a network perspective, based on the specific user;

a third module to select a BSSID (Basic Service Set Identifier) for the station with uplink configurations corresponding to the level of uplink access for the specific user;

a fourth module to generate a modified beacon frame with selected uplink configurations and the selected BSSID to the station, wherein the selected uplink configurations specify medium access parameters specifically for the station, the generating comprising embedding the uplink configurations in a Quiet Element field of the modified beacon frame, and wherein embedding the uplink configurations in the Quiet Element field comprises determining a field value for at least one of Quiet Count, Quiet Period, Quiet Duration and Quiet Offset in accordance with the level of uplink medium access; and

a fifth module to send the modified beacon frame to the station.