Dedicated backhaul link for a robust wireless mesh network

• US 10,278,179 B2
• Filed: 10/06/2016
• Issued: 04/30/2019
• Est. Priority Date: 11/10/2015
• Status: Active Grant

• Current Assignee: NETGEAR, Inc.
• Original Assignee: NETGEAR, Inc.
• Inventors: Amini, Peiman, Emmanuel, Joseph Amalan Arul
• Primary Examiner(s): Yuen, Kan
• Application Number:
  US15/287,711
• Publication Number:
  US 20170135022A1
• Time in Patent Office: 936 Days
• CPC Class Codes: H04L 12/44 Star or tree networks
• CPC Class Codes: H04L 43/0888 Throughput
• CPC Class Codes: H04L 43/0894 Packet rate
• CPC Class Codes: H04L 43/10 Active monitoring, e.g. heartbeat, ping or trace-route
• CPC Class Codes: H04L 43/16 Threshold monitoring
• CPC Class Codes: H04L 45/20 Hop count for routing purposes, e.g. TTL
• CPC Class Codes: H04W 16/20 for indoor coverage or short range network deployment
• CPC Class Codes: H04W 24/04 Arrangements for maintaining operational condition
• CPC Class Codes: H04W 24/06 Testing, supervising or monitoring using simulated traffic
• CPC Class Codes: H04W 24/08 Testing, supervising or monitoring using real traffic
• CPC Class Codes: H04W 4/023 using mutual or relative location information between multiple location based services [LBS] targets or of distance thresholds
• CPC Class Codes: H04W 40/12 based on transmission quality or channel quality
• CPC Class Codes: H04W 72/0453 Resources in frequency domain, e.g. a carrier in FDMA
• CPC Class Codes: H04W 72/542 using measured or perceived quality
• CPC Class Codes: H04W 76/10 Connection setup
• CPC Class Codes: H04W 76/15 Setup of multiple wireless link connections
• CPC Class Codes: H04W 84/12 WLAN [Wireless Local Area Networks]
• CPC Class Codes: H04W 84/18 Self-organising networks, e.g. ad-hoc networks or sensor networks

Abstract

Introduced here are techniques to provide automated mesh point survey and guided installation for assisting the installation and configuration of a wireless mesh network. Additional implementation techniques are also introduced including, for example, link rate estimation, roaming, and dedicated backhaul link implementation in such wireless mesh network, are also discussed. Among other benefits, this disclosure provides an integral solution where multiple wireless local area network (WLAN) mesh point devices are deployed in a relatively large environment with potential dead spots, such as a home or an office.

Claims

1. A computer-implemented method for implementing a dedicated backhaul in a wireless mesh network formed with one or more mesh points, the method being performed by a first mesh point and comprising:

establishing a forward wireless communication with a second mesh point;

establishing a backhaul communication, separate from the forward wireless communication, with the second mesh point,

wherein the forward wireless communication is established using a wireless communication technology using frequency bands selected from the group consisting of;

a 2.4 GHz band, and a 5 GHz band, and

wherein the backhaul communication is established using a communication technology selected from the group consisting of;

a power line based communication, a 2.4 GHz or 5 GHz radio frequency (RF) technology using a dedicated radio, and a sub-1GHz RF technology; and

constructing a list of backhaul candidates, each backhaul candidate having a score indicative of an estimated quality of a potential link between the first mesh point and the second mesh point;

upon determining that a quality of service of the dedicated backhaul has dropped to below a predetermined threshold, establishing an alternative backhaul communication with the second mesh point using a backhaul candidate with the highest score on the list.

2. The method of claim 1, wherein the backhaul communication is dedicated for controlling packets.

3. The method of claim 1, further comprising:

upon determining that a quality of service of the backhaul communication has dropped to below a predetermined threshold, redirecting backhaul traffic to the forward wireless communication.

4. The method of claim 1, further comprising:

upon determining whether a quality of service of the dedicated backhaul has dropped to below a predetermined threshold, establishing an alternative backhaul communication with the second mesh point; and

redirecting backhaul traffic to the alternative backhaul communication.

5. The method of claim 4, wherein the alternative backhaul communication is a direct link that links to the second mesh point through no other mesh point.

6. The method of claim 4, wherein the alternative backhaul communication is an indirect direct link that links to the second mesh point through another mesh point.

7. The method of claim 1, wherein different backhauls are used for different clients.

8. The method of claim 1, further comprising:

measuring a plurality of qualitative parameters for the established backhaul communication; and

causing the measured qualitative parameters to be transmitted to a controlling entity to facilitate a selection of a communication technology used for a backhaul communication between each two mesh points in the wireless mesh network.

9. The method of claim 1, further comprising:

aggregating a plurality of backhaul links available on different communication technologies to create an aggregated backhaul communication.

10. The method of claim 9, wherein the aggregated backhaul links are aggregated on a media access control (MAC) layer or a transport layer.

11. A computing device comprising:

one or more processors, that implements a mesh point in a wireless mesh network formed with a plurality of mesh points, the computing device being configured to perform a method comprising;

establishing a forward wireless communication with a second mesh point;

establishing a backhaul communication, separate from the forward wireless communication, with the second mesh point,

wherein the forward wireless communication is established using a wireless communication technology using frequency bands selected from the group consisting of;

a 2.4 GHz band, and a 5 GHz band, and

wherein the backhaul communication is established using a communication technology selected from the group consisting of;

a power line based communication, a 2.4 GHz or 5 GHz radio frequency (RF) technology using a dedicated radio, and a sub-1GHz RF technology; and

constructing a list of backhaul candidates, each backhaul candidate having a score indicative of an estimated quality of a potential link between the first mesh point and the second mesh point;

upon determining that a quality of service of the established backhaul has dropped to below a predetermined threshold, establishing an alternative backhaul communication with the second mesh point using a backhaul candidate with the highest score on the list.

12. The device of claim 11, wherein the backhaul communication is dedicated for controlling packets.

13. The device of claim 11, the method performed by the device further comprising:

upon determining that a quality of service of the backhaul communication has dropped to below a predetermined threshold, redirecting backhaul traffic to the forward wireless communication.

14. The device of claim 11, the method performed by the device further comprising:

upon determining whether a quality of service of the established backhaul has dropped to below a predetermined threshold, establishing an alternative backhaul communication with the second mesh point; and

redirecting backhaul traffic to the alternative backhaul communication.

15. The device of claim 14, wherein the alternative backhaul communication is a direct link that links to the second mesh point through no other mesh point.

16. The device of claim 14, wherein the alternative backhaul communication is an indirect direct link that links to the second mesh point through another mesh point.

17. The device of claim 11, the method performed by the device further comprising:

measuring a plurality of qualitative parameters for the established backhaul communication; and

causing the measured qualitative parameters to be transmitted to a controlling entity to facilitate a selection of a communication technology used for a backhaul communication between each two mesh points in the wireless mesh network.

18. The device of claim 11, the method performed by the device further comprising:

aggregating a plurality of backhaul links available on different communication technologies to create an aggregated backhaul communication.

19. The device of claim 11, wherein the aggregated backhaul links are aggregated on a media access control (MAC) layer or a transport layer.