Method for problematic user detection

• US 8,045,484 B2
• Filed: 05/19/2006
• Issued: 10/25/2011
• Est. Priority Date: 05/20/2005
• Status: Expired due to Fees

• Current Assignee: Gonet Systems Ltd.
• Original Assignee: Gonet Systems Ltd.
• Inventors: Perets, Gadi Shimon, Peleg, Yaron Menahem
• Primary Examiner(s): Ferris; Derrick
• Assistant Examiner(s): YEUNG, MANG HANG
• Application Number:
  US11/436,561
• Publication Number:
  US 20060262764A1
• Time in Patent Office: 1,985 Days
• Field of Search: 370/234, 370/328, 370252-255, 370338-349, 714/748, 714/749
• US Class Current: 370/255
• CPC Class Codes: H04W 24/08 Testing, supervising or monitoring using real traffic

Abstract

A method for problematic station detection featuring problematic station detection algorithm based on calculating the amount of time a station is wasting.

Claims

1. A method for managing wireless communication network, comprising:

detecting a first wireless client whose wireless connection to the network induces station-wasted time by one or more wireless client connections to the network, and reallocating wireless bandwidth to either the first wireless client or to other wireless clients bases on the station-wasted time,

wherein the station-wasted time is calculated by summing time of all retransmissions for which the first wireless client did not received an ACK signal, and

wherein the time for each retransmission for which the first wireless client did not received an ACK signal is equal to a packet'"'"'s transmission time plus time wasted on waiting for receiving the ACK signal acknowledging a reception of the packet.

2. The method according to claim 1, wherein detecting is performed substantially in real time and comprises gathering raw traffic data from at least one wireless channel.

3. The method according to claim 2, wherein detecting further comprises estimating a property of the at least one channel.

4. The method according to claim 2, wherein detecting further comprises extracting statistical information from the collected raw traffic data.

5. The method according to claim 4, wherein detecting further comprises comparing statistics of a wireless channel usage by the first wireless client statistics against a statistical average of channel usage by other clients.

6. The method according to claim 1, wherein reallocating wireless bandwidth comprises changing beam directions.

7. The method according to claim 1, wherein reallocating wireless bandwidth comprises changing wireless channels of one or more wireless clients.

8. The method according to claim 7, wherein reallocating wireless bandwidth further comprises moving one or more wireless clients to a different access point.

9. The method according to claim 1, wherein reallocating wireless bandwidth comprises moving one or more wireless clients to a different access point.

10. A wireless communication wireless network appliance, comprising:

network management device is configured to detect a first wireless client whose wireless connection induces station-wasted time by one or more wireless clients connections to the network, and to reallocate wireless bandwidth to either the first wireless client or to other wireless clients bases on the station-wasted time,

wherein the station-wasted time is calculated by summing time of all retransmissions for which the first wireless client did not received an ACK signal, and

wherein the time for each retransmission for which the first wireless client did not received an ACK signal is equal to a packet'"'"'s transmission time plus time wasted on waiting for receiving the ACK signal acknowledging a reception of the packet.

11. The appliance according to claim 10, wherein detecting is performed substantially in real time and comprises gathering raw traffic data relating to at least one wireless channel.

12. The appliance according to claim 11, wherein detecting further comprises estimating a property of the at least one channel.

13. The appliance according to claim 10, wherein detecting further comprises extracting statistical information from the collected raw traffic data.

14. The appliance according to claim 13, wherein detecting further comprises comparing statistics of a wireless channel usage by the first wireless client statistics against a statistical average of channel usage by other clients.

15. The appliance according to claim 10, wherein reallocating wireless bandwidth comprises causing a wireless access point to change beam directions.

16. The appliance according to claim 10, wherein reallocating wireless bandwidth comprises causing a wireless access point to change wireless channels of one or more wireless clients.

17. The appliance according to claim 16, wherein reallocating wireless bandwidth further comprises causing one or more wireless clients to move to a different access point.

18. The appliance according to claim 10, wherein reallocating wireless bandwidth comprises moving one or more wireless clients to a different access point.