Mesh infrastructure utilizing priority repeaters and multiple transceivers

• US 8,619,609 B2
• Filed: 02/04/2011
• Issued: 12/31/2013
• Est. Priority Date: 02/04/2011
• Status: Active Grant

• Current Assignee: Elster Solutions LLC (Honeywell International Inc.)
• Original Assignee: Elster Solutions LLC (Honeywell International Inc.)
• Inventors: Shuey, Kenneth C., Mason, Robert T., Borleske, Andrew J., Richeson, Keith D.
• Primary Examiner(s): Elpenord, Candal
• Application Number:
  US13/020,856
• Publication Number:
  US 20120201146A1
• Time in Patent Office: 1,061 Days
• Field of Search: 370/252, 370/311, 370/315, 370/328, 370/329, 370/338, 370/401, 455/11.1, 455/450, 340/870.02
• US Class Current: 370/252
• CPC Class Codes: H04W 40/14 based on stability
• CPC Class Codes: H04W 84/047 using dedicated repeater stations

Abstract

A wireless mesh network, method, and processor-readable storage medium for using stand-alone repeaters that are designated as having priority over other communication nodes with respect to their service as repeaters are disclosed herein. According to various embodiments, a control node or collector builds a wireless mesh network by first establishing communication paths with the designated priority communication nodes and then with communication nodes that are not designated priority communication nodes.

Claims

1. A wireless network comprising:

a control node; and

a plurality of communication nodes in wireless communication with the control node, each of the communication nodes having a wireless communication path to the control node that is either a direct path or an indirect path through one or more communication nodes that serve as repeaters,

wherein some of the communication nodes are designated as having a priority over other communication nodes with respect to their service as the repeaters, and wherein, for communication nodes that are more than one hop from the control node, the control node establishes wireless communication paths first with said priority communication nodes and subsequently with remaining communication nodes,

wherein the wireless network is configurable to operate in a priority repeater mode in which each communication node that is more than one hop from the control node has a wireless communication path to the control node through a closest priority communication node that is a fewer or equal number of hops from the communication node than any other priority communication node.

2. The wireless network of claim 1, wherein the wireless network is configurable to operate in a fewest number of hops mode in which each communication node has a wireless communication path to the control node through a fewest number of intervening repeater nodes regardless of whether any of the intervening repeater nodes are priority communication nodes.

3. The wireless network of claim 2, wherein the wireless network is re-configurable to switch operation between the priority repeater mode and the fewest number of hops mode.

4. The wireless network of claim 1, wherein at least one communication node has a first transceiver and a second transceiver.

5. The wireless network of claim 4, wherein the first transceiver is configured to communicate with the control node using a first set of frequency channels and the second transceiver is configured to communicate with one or more other communication nodes using a second set of frequency channels different from the first set of frequency channels.

6. The wireless network of claim 5, wherein the at least one communication node having the first transceiver and the second transceiver is configured to read meter data from a plurality of endpoint meters using the second transceiver and to provide the meter data to the control node using the first transceiver.

7. The wireless network of claim 5, wherein the second set of frequency channels comprises a first frequency offset for communicating with another priority communication node and at least one additional frequency offset for communicating with at least one type of metering device.

8. The wireless network of claim 7, wherein the priority communication nodes are synchronized to a synchronization clock, and wherein an assignment of the at least one additional frequency offset to a corresponding type of metering device changes with an increment of the synchronization clock.

9. In a wireless network having a control node that communicates with a plurality of communication nodes, wherein each of the communication nodes has a wireless communication path to the control node that is either a direct path or an indirect path through one or more communication nodes that serve as repeaters, and wherein a first subset of the communication nodes are designated as having a priority over other communication nodes with respect to their service as the repeaters, a method of registering said communication nodes to communicate with said control node, comprising:

scanning to identify communication nodes within communication range of the control node, wherein the identified communication nodes may include communication nodes within said first subset and communication nodes that are not in said first subset;

determining a reliability of communications between said control node and each of the identified communication nodes;

registering those communication nodes having a reliability above a predetermined threshold as a first level of communication nodes of the wireless network; and

instructing only the first level communication nodes that are part of said first subset to scan to identify other communication nodes of said first subset that are within communication range of the first level communication nodes and repeating the determining, registering and instructing steps at successive levels of the wireless network until all communication nodes in said first subset that have been identified have been registered;

repeating said scanning, determining, registering and instructing steps using communication nodes that are not in said first subset; and

configuring the wireless network to operate in a priority repeater mode in which each communication node that is more than one hop from the control node has a wireless communication path to the control node through a closest one of said first subset of the communication nodes that is a fewer or equal number of hops from the communication node than any other one of said first subset of the communication nodes.

10. The method of claim 9, wherein said first subset of the communication nodes comprises stand-alone repeater devices.

11. The method of claim 9, wherein said first subset of the communication nodes are identified using a designated data format code.

12. The method of claim 9, further comprising:

storing in the control node an alternative path parent node identifier associated with an alternative wireless communication path from the control node to at least one communication node; and

communicating with the at least one communication node using the alternative wireless communication path.

13. The method of claim 9, wherein the wireless network comprises a plurality of control nodes, and wherein at least one communication node of said first subset of the communication nodes is configured to respond to at least two control nodes of the plurality of control nodes.

14. The method of claim 9, further comprising reconfiguring the wireless network to switch operation between the priority repeater mode and a fewest number of hops mode in which each communication node has a wireless communication path to the control node through a fewest number of intervening repeater nodes regardless of whether any of the intervening repeater nodes are in said first subset.

15. A wireless network comprising:

a control node; and

a plurality of communication nodes in wireless communication with the control node, each of the communication nodes having a wireless communication path to the control node that is either a direct path or an indirect path through one or more communication nodes that serve as repeaters,

wherein some of the communication nodes are designated as having a priority over other communication nodes with respect to their service as the repeaters, and wherein, for communication nodes that are more than one hop from the control node, the control node establishes wireless communication paths first with said priority communication nodes and subsequently with remaining communication nodes,

wherein at least one communication node has a first transceiver and a second transceiver, wherein the first transceiver is configured to communicate with the control node using a first set of frequency channels and the second transceiver is configured to communicate with one or more other communication nodes using a second set of frequency channels different from the first set of frequency channels, and wherein the second set of frequency channels comprises a first frequency offset for communicating with another priority communication node and at least one additional frequency offset for communicating with at least one type of metering device.

16. The wireless network of claim 15, wherein the wireless network is configurable to operate in a priority repeater mode in which each communication node that is more than one hop from the control node has a wireless communication path to the control node through a closest priority communication node that is a fewer or equal number of hops from the communication node than any other priority communication node.

17. The wireless network of claim 16, wherein the wireless network is configurable to operate in a fewest number of hops mode in which each communication node has a wireless communication path to the control node through a fewest number of intervening repeater nodes regardless of whether any of the intervening repeater nodes are priority communication nodes.

18. The wireless network of claim 17, wherein the wireless network is re-configurable to switch operation between the priority repeater mode and the fewest number of hops mode.

19. The wireless network of claim 15, wherein the at least one communication node having the first transceiver and the second transceiver is configured to read meter data from a plurality of endpoint meters using the second transceiver and to provide the meter data to the control node using the first transceiver.

20. The wireless network of claim 15, wherein the priority communication nodes are synchronized to a synchronization clock, and wherein an assignment of the at least one additional frequency offset to a corresponding type of metering device changes with an increment of the synchronization clock.