IP Library Granted Patent US 8,248,948
Granted Patent B2
US 8,248,948 · App. 11/823,949 · Granted Aug 21, 2012

Monitoring network conditions of a wireless network

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Quick Facts
Patent No.
US 8,248,948
App. No.
11/823,949
Granted
Aug 21, 2012
Kind
B2
Abstract

A method of determining a location of a network condition within a wireless mesh network is disclosed. The method includes a test device testing a first plurality of wireless hops of the wireless mesh network. The test device also tests a second number of wireless hops of the wireless mesh network. The test device locates the network condition within the wireless mesh network by comparing the test of the first plurality of wireless hops with the test of the second number of wireless hops.

Claims (31)

1. A method of determining a location of a network condition within a wireless mesh network, comprising:

a test device wirelessly connected directly to an access node of the wireless mesh network testing a first plurality of wireless hops of the wireless mesh network, the first plurality of hops including a wireless hop between the test device and the access node, comprising sending a probe packet from the test device to a first target device located the first plurality of wireless hops from the test device, and receiving a probe packet back from the first target device;

the test device testing a second number of wireless hops of the wireless mesh network, comprising sending another probe packet from the test device to a second target device located the second number of wireless hops from the test device, and receiving a probe packet back from the second target device;

wherein a number of the first plurality of wireless hops is different than the second number of wireless hops;

the test device locating a latency network condition within the wireless mesh network by comparing a round trip travel time of the probe packet of the first device with a round trip travel time of the probe packet of the second device,

wherein the testing the first plurality of wireless hops comprises testing at least one of a upstream latency, downstream latency, upstream throughput, downstream throughput, a number of packet retries, packet success probability, reverse packet success probability and antenna asymmetry of at least one of the first plurality of wireless hops.

2. The method of claim 1 , wherein the testing the second number of hops comprises testing at least one of a latency, a throughput, a number of packet retries, packet success probability, reverse packet success probability and antenna asymmetry of the second number of hops.

3. The method of claim 1 , wherein the testing device emulates a client device connected to the wireless mesh network.

4. The method of claim 1 , wherein the testing device emulates an access node connected to the wireless mesh network.

5. The method of claim 1 , the first plurality of wireless hops and the second number of wireless hops are upstream wireless hops relative to the test device.

6. The method of claim 1 , the first plurality of wireless hops and the second number of wireless hops are downstream wireless hops relative to the test device.

7. The method of claim 1 , further comprising the test device determining wireless network parameters including at least one of receive signal strength, receive signal SNR, transmission retries, upstream data throughput, downstream data throughput, latency, and available air-time.

8. The method of claim 7 , further comprising:

triggering an alert if at least one of the wireless network parameter exceeds or falls below a threshold.

9. The method of claim 8 , wherein the alert comprises communicating with a network manager.

10. The method of claim 1 , further comprising the test device communicating the location of the network condition to another device within the wireless mesh network.

11. The method of claim 10 , wherein the other device comprises at least one of a wireless mesh gateway, a wireless mesh access node or a management server.

12. The method of claim 10 , further comprising the other wireless device modifying wireless network characteristics to mitigate the network condition.

13. The method of claim 12 , wherein the wireless network characteristic is at least one of routing selection, transmission channel selection, transmission power, transmission bit rate, packet QoS, dis-associating a client.

14. The method of claim 1 , further comprising the test device correlating the network condition with other activity of the wireless mesh network.

15. The method of claim 14 , wherein the other activity comprises at least one of:

a routing path selection, a device channel selection, a device cluster selection.

16. The method of claim 1 , further comprising the test device correlating the network condition with other conditions of the wireless mesh network.

17. The method of claim 16 , wherein the other condition comprise at least one of:

a device within the wireless network experiencing heaving loading, a hidden node condition, limited availability of air-time.

18. A test device wirelessly connected to an access node of a wireless mesh network, the test device operate to:

test a first plurality of wireless hops of the wireless mesh network, the first plurality of hops including a wireless hop between the test device and the access node, comprising sending a probe packet from the test device to a first target device located the first plurality of wireless hops from the test device, and receiving a probe packet back from the first target device;

test a second number of wireless hops of the wireless mesh network, comprising sending another probe packet from the test device to a second target device located the second number of wireless hops from the test device, and receiving a probe packet back from the second target device;

wherein a number of the first plurality of wireless hops is different than the second number of wireless hops;

locate a latency network condition within the wireless mesh network by comparing a round trip travel time of the probe packet of the first device with a round trip travel time of the probe packet of the second device,

wherein the testing the first plurality of wireless hops comprises testing at least one of a upstream latency, downstream latency, upstream throughput, downstream throughput, a number of packet retries, packet success probability, reverse packet success probability and antenna asymmetry of at least one of the first plurality of wireless hops.

Assignments (6)
MERGER Recorded Nov 13, 2023
From: HITACHI ENERGY SWITZERLAND AG
To: HITACHI ENERGY LTD
Reel/Frame 065549/0576 →
CHANGE OF NAME Recorded Dec 31, 2021
From: ABB POWER GRIDS SWITZERLAND AG
To: HITACHI ENERGY SWITZERLAND AG
Reel/Frame 058666/0540 →
MERGER Recorded Aug 3, 2021
From: ABB TECHNOLOGY LTD.
To: ABB TECHNOLOGY AG
Reel/Frame 057685/0044 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 15, 2021
From: ABB SCHWEIZ AG
To: ABB POWER GRIDS SWITZERLAND AG
Reel/Frame 055589/0769 →
MERGER Recorded Dec 9, 2020
From: ABB TECHNOLOGY AG
To: ABB SCHWEIZ AG
Reel/Frame 054893/0273 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Dec 8, 2020
From: TROPOS NETWORKS INC.
To: ABB TECHNOLOGY LTD.
Reel/Frame 054644/0511 →