IP Library Granted Patent US 9,025,581
Granted Patent B2
US 9,025,581 · App. 13/763,639 · Granted May 5, 2015

Hybrid virtual cell and virtual port wireless network architecture

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Quick Facts
Patent No.
US 9,025,581
App. No.
13/763,639
Granted
May 5, 2015
Kind
B2
Abstract

A controller directing access points to default to a virtual cell service mode which allows seamless mobility for stations in motion around a wireless network is disclosed. Responsive to identifying a first station, the controller logic may dictate tighter controls for the first station by selecting a virtual port service mode. Some embodiments can also select a native cell service mode for devices due to a connection history of the station or a MAC OUI that is incompatible with virtual cell service mode. An initial service mode can be changed due to a condition. Also, the controller provides multiple BSSIDs to each access point.

Claims (35)

1. A computer-implemented method in a controller, for providing a hybrid of virtual port and virtual cell service modes to stations connected to a wireless network, comprising:

connecting to the wireless network comprising one or more access points;

receiving notification of a request for network access from a station to an access point of the plurality of access points, along with identification information associated with the station;

selecting a service mode to provide to the station based on the identification information, wherein the service modes comprise at least a native cell mode which assigns a BSSID (Basic Service Set IDentifier) for standard operation, a virtual cell mode which assigns a persistent BSSID as a station is serviced by different access points, and a virtual port mode which assigns a unique BSSID for a station; and

assigning a BSSID to the station that corresponds to the service mode responsive to the notification.

2. The method of claim 1 , further comprising:

changing the service mode responsive to at least one condition.

3. The method of claim 2 , wherein changing the service mode comprises:

changing the service mode from virtual cell mode to virtual port mode responsive to the station violating a network policy.

4. The method of claim 2 , wherein changing the service mode comprises:

changing the service mode from virtual cell mode to virtual port mode responsive to surpassing a threshold for at least one of an uplink data rate or an uplink data amount; and

controlling at least one of the uplink date rate or the uplink data amount over a wireless protocol without native support for control.

5. The method of claim 1 , wherein the identification information comprises a MAC (Media Access Control) OUI (Organizational Unique Identifier) and wherein selecting the service mode comprises:

selecting the service mode to provide to the station is based on a MAC OUI.

6. The method of claim 5 , wherein the MAC OUI is incompatible with the virtual cell mode.

7. The method of claim 5 , wherein the MAC OUI indicates a type of station.

8. The method of claim 1 , further comprising:

retrieving a connection history using the identification information,

wherein selecting the service mode comprises selecting the service mode based on the connection history.

9. The method of claim 1 , wherein selecting the service mode comprises:

selecting the service mode at least partially based on available resources of the controller.

10. The method of claim 1 , further comprising:

determining that the station is a non-mobile station; and

selecting the native cell mode or changing the service mode to the native cell mode.

11. The method of claim 1 , wherein the controller manages a plurality of access points in the wireless network.

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

13. A non-transitory computer-readable medium storing instructions that, when executed by a processor, perform a method in a controller, for providing a hybrid of virtual port and virtual cell service modes to stations connected to a wireless network, comprising:

connecting to the wireless network comprising one or more access points;

receiving notification of a request for network access from a station to an access point of the plurality of access points, along with identification information associated with the station;

selecting a service mode to provide to the station based on the identification information, wherein the service modes comprise at least a native cell mode which assigns a BSSID (Basic Service Set IDentifier) for standard operation, a virtual cell mode which assigns a persistent BSSID as a station is serviced by different access points, and a virtual port mode which assigns a unique BSSID for a station; and

assigning a BSSID to the station that corresponds to the service mode responsive to the notification.

14. A controller to provide a hybrid of virtual port and virtual cell service modes to stations connected to a wireless network, comprising:

an interface to connect to the wireless network and to receive notification of a request for network access from a station to an access point along with identification information associated with the station;

a selection module to select a service mode to provide to the station based on the identification information, wherein the service modes comprise at least a native cell mode which assigns a BSSID (Basic Service Set IDentifier) for standard operation, a virtual cell mode which assigns a persistent BSSID as a station is serviced by different access points, and a virtual port mode which assigns a unique BSSID for a station

a BSSID module to assign a BSSID to the station that corresponds to the service mode responsive to the notification.

Assignments (5)
MERGER Recorded Feb 28, 2018
From: MERU NETWORKS, INC.
To: FORTINET, INC
Reel/Frame 045474/0392 →
MERGER Recorded Jan 23, 2018
From: MERU NETWORKS, INC.
To: FORTINET, LLC
Reel/Frame 045112/0786 →
RELEASE OF SECURITY INTEREST Recorded Jul 8, 2015
From: OPUS BANK
To: MERU NETWORKS, INC.
Reel/Frame 036083/0264 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded May 24, 2013
From: RAM, MOHAN; HAN, SUNG-WOOK; SCHAVEY, BRETT; KUNNATH, AJAY; BASU, RISHIKESH; DUNSBERGEN, BEREND; EPSTEIN, JOSEPH
To: MERU NETWORKS
Reel/Frame 030479/0318 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded May 24, 2013
From: BHARGHAVAN, VADUVUR
To: MERU NETWORKS
Reel/Frame 030479/0342 →