# US 2014/0192719 A1 · Ip encapsulation and routing over wireless radio networks

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- Number: US 2014/0192719 A1
- Document ID: US20140192719A1
- Status: Published application
- Kind: A1
- Application number: 14/157,716
- Filed: 2014-01-17
- Published: 2014-07-10
- Earliest claimed: 2009-12-31
- Applicants: Elster Solutions, LLC
- Inventors: Jeff D. McCullough
- Web page: https://patentgrep.com/patent/US20140192719A1

## CPC

- H04L 69/169: {Special adaptations of TCP, UDP or IP for interworking of IP based networks with other networks (protocols for interworking, protocol conversion H04L69/08)}
- H04W 40/02: Communication route or path selection, e.g. power-based or shortest path routing
- H04L 67/125: involving control of end-device applications over a network
- H04L 2212/00: Encapsulation of packets
- H04L: TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION (arrangements common to telegraphic and telephonic communication H04M)
- H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72)

## Abstract

Various methods of operating a wireless mesh network are disclosed herein. According to various embodiments, an Internet Protocol (IP) router generates IP addresses for wireless sensor nodes that do not have native support for the IP protocol stack. The IP router then receives and translates an incoming IP request and routes the incoming IP request to the appropriate wireless sensor node. In some embodiments, an IP data packet can be encapsulated and routed using an IP router and an IP bridge device. In other embodiments, an Internet Control Message Protocol (ICMP) session can be managed over a wireless mesh network.

## Claims

### Claim 1

A method for transferring an Internet Protocol (IP) data packet from an originating device to a receiving device, the method comprising:
receiving the IP data packet from the originating device at an IP router;
using the IP router to encapsulate the IP data packet into a wireless data gram;
forwarding the wireless data gram to an IP bridge device;
using the IP bridge device to unencapsulate the wireless data gram to the IP data packet; and
using the IP bridge device to forward the unencapsulated IP data packet to the receiving device.

### Claim 2 (depends on 1)

The method of claim 1, further comprising:
before using the IP router to encapsulate the IP data packet into the wireless data gram, dividing the IP data packet into a plurality of segments; and
after using the IP bridge device to unencapsulate the wireless data gram, reassembling the plurality of segments into the IP data packet.

### Claim 3 (depends on 1)

The method of claim 1, further comprising, after using the IP bridge device to unencapsulate the wireless data gram to the IP data packet, routing the IP data packet to an IP side of the IP bridge device for delivery to the receiving device via a physical layer.

### Claim 4 (depends on 3)

The method of claim 3, wherein the physical layer is selected from the group consisting of an Ethernet physical layer, a USB physical layer, and an RS232 physical layer.

### Claim 5 (depends on 1)

The method of claim 1, further comprising:
using the receiving device to send an IP response packet to the IP bridge device;
using the IP bridge device to encapsulate the IP response packet; and
forwarding the encapsulated IP response packet to the IP router.

### Claim 6 (depends on 1)

The method of claim 1, wherein the IP bridge device comprises an Advanced Grid Infrastructure (AGI) gateway device.

### Claim 7

A system for transferring an Internet Protocol (IP) data packet from an originating device to a receiving device, the system comprising:
an IP router that receives the IP data packet from the originating device, encapsulates the IP data packet into a wireless data gram, and forwards the wireless data gram to an IP bridge device; and
the IP bridge device, which unencapsulates the wireless data gram to the IP data packet and forwards the unencapsulated IP data packet to the receiving device.

### Claim 8 (depends on 7)

The system of claim 7, wherein, before encapsulating the IP data packet into the wireless data gram, the IP router divides the IP data packet into a plurality of segments.

### Claim 9 (depends on 8)

The system of claim 8, wherein, after unencapsulating the wireless data gram, the IP bridge device reassembles the plurality of segments into the IP data packet.

### Claim 10 (depends on 7)

The system of claim 7, wherein, after unencapsulating the wireless data gram to the IP data packet, the IP bridge device routes the IP data packet to an IP side of the IP bridge device for delivery to the receiving device via a physical layer.

### Claim 11 (depends on 10)

The system of claim 10, wherein the physical layer is selected from the group consisting of an Ethernet physical layer, a USB physical layer, and an RS232 physical layer.

### Claim 12 (depends on 7)

The system of claim 7, wherein the receiving device sends an IP response packet to the IP bridge device, and wherein the IP bridge device encapsulates the IP response packet and forwards the encapsulated IP response packet to the IP router.

### Claim 13 (depends on 7)

The system of claim 7, wherein the IP bridge device comprises an Advanced Grid Infrastructure (AGI) gateway device.

### Claim 14

A method for transferring an Internet Protocol (IP) data packet from an originating device, the method comprising:
receiving the IP data packet from the originating device at an IP router;
using the IP router to encapsulate the IP data packet into a wireless data gram;
forwarding the wireless data gram to another device;
using the other device to unencapsulate the wireless data gram to the IP data packet;
using the other device to encapsulate an IP response packet; and
forwarding the encapsulated IP response packet to the IP router.

### Claim 15 (depends on 14)

The method of claim 14, further comprising:
before using the IP router to encapsulate the IP data packet into the wireless data gram, dividing the IP data packet into a plurality of segments; and
after using the other device to unencapsulate the wireless data gram, reassembling the plurality of segments into the IP data packet.

### Claim 16 (depends on 14)

The method of claim 14, further comprising, after using the other device to unencapsulate the wireless data gram to the IP data packet, routing the IP data packet to an IP side of the other device for delivery to a receiving device via a physical layer.

### Claim 17 (depends on 16)

The method of claim 16, wherein the physical layer is selected from the group consisting of an Ethernet physical layer, a USB physical layer, and an RS232 physical layer.

### Claim 18 (depends on 16)

The method of claim 16, further comprising:
using the receiving device to send the IP response packet to the other device.

### Claim 19 (depends on 14)

The method of claim 14, wherein the other device comprises an IP bridge device.

### Claim 20 (depends on 19)

The method of claim 19, wherein the other device comprises an Advanced Grid Infrastructure (AGI) gateway device.