Establishing a Mesh Network

• US 20130279409A1
• Filed: 04/04/2013
• Published: 10/24/2013
• Est. Priority Date: 04/18/2012
• Status: Abandoned Application

• Current Assignee: Blue Acquisition Group Incorporated (The J. M. Smucker Company)
• Original Assignee: Draker Laboratories Incorporated (Also Energy Incorporated)
• Inventors: Dublin, Wilbur L. III, Davis, Donald J., Burgess, Thadeus N.
• Application Number:
  US13/856,533
• Publication Number:
  US 20130279409A1
• Time in Patent Office: Days
• US Class Current: 370/328
• CPC Class Codes: H04L 45/122 by minimising distances, e.g. by selecting a route with minimum of number of hops
• CPC Class Codes: H04L 45/124 using a combination of metrics
• CPC Class Codes: H04L 45/127 based on intermediate node capabilities
• CPC Class Codes: H04W 40/02 Communication route or path selection, e.g. power-based or shortest path routing
• CPC Class Codes: H04W 84/22 with access to wired networks

Abstract

Establishing a mesh network. A gateway in the mesh network may broadcast a wireless message to neighboring nodes of the gateway in the mesh network. The neighboring nodes may store first hop count information based on the wireless message received from the gateway. The neighboring nodes may each broadcast the wireless message to other neighboring nodes in the wireless mesh network. The other neighboring nodes may store second hop count information based on the received messages from the respective neighboring nodes. The second hop count information may indicate a greater hop count than the first hop count information. The first hop count information and the second hop count information may be used to establish routes from nodes to gateways in subsequent communications in the mesh network.

Claims

1. A method for establishing routing information in a wireless mesh network, the method comprising:

a gateway in the wireless mesh network broadcasting a first wireless message to a first set of nodes in the wireless mesh network, wherein the first set of nodes are neighboring nodes to the gateway;

in response to the first wireless message, the first set of nodes storing first hop count information based on the first wireless message received from the gateway;

in response to the first wireless message, the neighboring nodes each broadcasting a second wireless message to a second set of nodes in the wireless mesh network, wherein the second set of nodes are neighboring nodes to the first set of nodes;

in response to the second wireless messages, the second set of nodes storing second hop count information based on the received messages from the first set of nodes, wherein the second hop count information indicates a greater hop count than the first hop count information;

wherein the first hop count information and the second hop count information are used to establish routes from nodes to gateways in subsequent communications in the wireless mesh network.

2. The method of claim 1, wherein the wireless message from each node comprises queue information.

3. The method of claim 1, further comprising:

the second set of nodes storing queue information based on the received messages from the first set of nodes, wherein each node is configured to use the queue information and the hop count information to determine routes for future data communication.

4. The method of claim 1, further comprising:

the second set of nodes storing signal strength information based on the received messages from the first set of nodes, wherein each node is configured to use the signal strength information and the hop count information to determine routes for future data communication.

5. The method of claim 1, wherein storing hop count information and broadcasting wireless messages is performed repeatedly by each set of wireless nodes until all nodes in the wireless mesh network have received a wireless message.

6. The method of claim 1, wherein said broadcasting the first wireless message, said storing the first hop count information, said broadcasting the second wireless message, and said storing the second hop count information is performed periodically during operation of the mesh network.

7. The method of claim 1, wherein a second gateway is present in the wireless mesh network, wherein said broadcasting the first wireless message, said storing the first hop count information, said broadcasting the second wireless message, and said storing the second hop count information is also performed corresponding to the second gateway.

8. A wireless node in a wireless mesh network, wherein the wireless node comprises:

wireless communication circuitry, configured to perform wireless communication in the wireless mesh network; and

processing hardware coupled the wireless communication circuitry, wherein the processing hardware is configured to operate with the wireless communication circuitry to;

receive a first plurality of wireless messages from a first set of nodes in the wireless mesh network, wherein the wireless node is a neighboring node to the first set of nodes in the wireless mesh network, wherein each wireless message comprises hop count information of the respective node broadcasting the respective wireless message;

in response to the first plurality of wireless messages, store hop count information for the wireless node, wherein the hop count information for the wireless node indicates a greater hop count than the hop count indicated in the hop count information of at least one of the first plurality of wireless messages;

in response to the first plurality of wireless messages, broadcast a second wireless message to a second set of nodes in the wireless mesh network, wherein the second wireless message comprises hop count information indicating the hop count of the wireless node;

wherein the hop count information of the wireless nodes in the wireless mesh network is used to establish routes from nodes to gateways for communications in the wireless mesh network.

9. The wireless node of claim 8, wherein wireless messages from each node comprises queue information.

10. The wireless node of claim 8, wherein the first plurality of wireless messages comprises queue information of the respective wireless node, wherein the processing hardware is further configured to:

store the queue information of at least one of the first set of nodes based on the received messages from the first set of nodes, wherein the wireless node is configured to use the queue information and the hop count information to determine routes for future data communication.

11. The wireless node of claim 8, wherein the processing hardware is further configured to:

store signal strength information corresponding to at least one of the first set of nodes based on the received messages from the first set of nodes, wherein the wireless node is configured to use the signal strength information and the hop count information to determine routes for future data communication.

12. The wireless node of claim 8, wherein said broadcasting wireless messages and storing hop count information is performed repeatedly by each set of wireless nodes until all nodes in the wireless mesh network have received a wireless message.

13. The wireless node of claim 8, wherein said receiving the first plurality of wireless messages, said storing hop count information, and said broadcasting the second wireless message is performed periodically during operation of the mesh network.

14. A non-transitory, computer accessible memory medium storing program instructions for configuring a node in a wireless mesh network, wherein the program instructions are executable by a processor to:

receive a first plurality of wireless messages from a first set of nodes in the wireless mesh network, wherein the wireless node is a neighboring node to the first set of nodes in the wireless mesh network, wherein each wireless message comprises hop count information of the respective node broadcasting the respective wireless message;

in response to the first plurality of wireless messages, store hop count information for the wireless node, wherein the hop count information for the wireless node indicates a greater hop count than the hop count indicated in the hop count information of at least one of the first plurality of wireless messages;

in response to the first plurality of wireless messages, broadcast a second wireless message to a second set of nodes in the wireless mesh network, wherein the second wireless message comprises hop count information indicating the hop count of the wireless node;

wherein the hop count information of the wireless nodes in the wireless mesh network is used to establish routes from nodes to gateways for communications in the wireless mesh network.

15. The non-transitory, computer accessible memory medium of claim 14, wherein wireless messages from each node comprises queue information.

16. The non-transitory, computer accessible memory medium of claim 14, wherein the first plurality of wireless messages comprises queue information of the respective wireless node, wherein the program instructions are further executable to:

store the queue information of at least one of the first set of nodes based on the received messages from the first set of nodes, wherein the wireless node is configured to use the queue information and the hop count information to determine routes for future data communication.

17. The non-transitory, computer accessible memory medium of claim 14, wherein the program instructions are further executable to:

store signal strength information corresponding to at least one of the first set of nodes based on the received messages from the first set of nodes, wherein the wireless node is configured to use the signal strength information and the hop count information to determine routes for future data communication.

18. The non-transitory, computer accessible memory medium of claim 14, wherein said broadcasting wireless messages and storing hop count information is performed repeatedly by each set of wireless nodes until all nodes in the wireless mesh network have received a wireless message.

19. The non-transitory, computer accessible memory medium of claim 14, wherein said receiving the first plurality of wireless messages, said storing hop count information, and said broadcasting the second wireless message is performed periodically during operation of the mesh network.

20. A method for establishing routing information in a wireless mesh network, the method comprising:

a wireless node in the wireless mesh network receiving a first plurality of wireless messages from a first set of nodes in the wireless mesh network, wherein the wireless node is a neighboring node to the first set of nodes in the wireless mesh network, wherein each wireless message comprises hop count information of the respective node broadcasting the respective wireless message;

in response to the first plurality of wireless messages, the wireless node storing hop count information for the wireless node, wherein the hop count information for the wireless node indicates a greater hop count than the hop count indicated in the hop count information of at least one of the first plurality of wireless messages;

in response to the first plurality of wireless messages, the wireless node broadcasting a second wireless message to a second set of nodes in the wireless mesh network, wherein the second wireless message comprises hop count information indicating the hop count of the wireless node;

wherein the hop count information of the wireless nodes in the wireless mesh network is used to establish routes from nodes to gateways for communications in the wireless mesh network.