Chirp networks

• US 9,819,747 B2
• Filed: 06/15/2015
• Issued: 11/14/2017
• Est. Priority Date: 11/24/2008
• Status: Active Grant

• Current Assignee: MeshDynamics
• Original Assignee: MeshDynamics
• Inventors: Dacosta, Francis
• Primary Examiner(s): Bayard, Djenane
• Application Number:
  US14/740,062
• Publication Number:
  US 20150304879A1
• Time in Patent Office: 883 Days
• CPC Class Codes: H04L 12/4625 Single bridge functionality, e.g. connection of two networks over a single bridge
• CPC Class Codes: H04L 45/02 Topology update or discovery
• CPC Class Codes: H04L 45/48 Routing tree calculation
• CPC Class Codes: H04L 49/70 Virtual switches
• CPC Class Codes: H04L 67/145 avoiding end of session, e.g. keep-alive, heartbeats, resumption message or wake-up for inactive or interrupted session
• CPC Class Codes: H04W 28/065 using assembly or disassembly of packets
• CPC Class Codes: H04W 4/14 Short messaging services, e.g. short message services [SMS] or unstructured supplementary service data [USSD]
• CPC Class Codes: H04W 4/70 Services for machine-to-machine communication [M2M] or machine type communication [MTC]
• CPC Class Codes: H04W 40/248 Connectivity information update
• CPC Class Codes: H04W 84/18 Self-organising networks, e.g. ad-hoc networks or sensor networks

Abstract

A network combining wireless and wired elements is described, using a multi-slot modular mesh node to house diverse transceiver elements (e.g. IR, Wi-Fi, Powerline). A radio agnostic tree based mesh network is formed, based on what type of wireless links are formed on the uplink and downlink of the backhaul and what type of radios are used for the Access Points AP. In addition to servicing IP based clients (e.g. Wi-Fi, WiMax, Bluetooth), the modular mesh nodes APs may also serve as receivers/collectors for low cost chirp devices. The method of transport is standard IP based packets yet security is inherent in this chirp-based implementation: only mesh nodes are privy to the routing tables that indicate that packet addresses are not IP. Multiple methods to obfuscate packet flow are presented. An organic approach to providing category/class based form of data type identification is proposed, to support a (dynamic) M2M Social Network Applications in-device discovery, registration and control are presented.

Claims

1. A system of transmitting of data packets within a network comprising:

at least one device transmitting at least one short communication message;

at least one network router comprising a chirp receiver for the at least one short communication message;

wherein said chirp receiver accepts said short communication message during an access function of said router without interrupting other communications; and

wherein said router further comprises an uplink function connecting said least one router to an external ip-based network using intermediary routers;

a downlink function connecting said least one router to other routers within said network; and

a scanning function wherein said uplink function, downlink function, scanning, and access functions are performed using one physical radio acting as multiple logical radios wherein the uplink function logical radio and the downlink function logical radio connect the routers participating in the system in a tree-based virtual switch.

2. The system of claim 1 further comprising at least one non-chirp enabled network router having a single physical radio which performs the uplink function, downlink function, scanning function, and access function.

3. The system of claim 1 wherein the updates to the routing information within the network follow O(n) complexity where n is a number of network participants.

4. The system of claim 1 wherein said short communication message comprises a terse status update without a specific receiver.

5. The system of claim 1 wherein said short communication message comprises a series of terse status updates received by the router wherein said router containerizes said series of terse messages.

6. The system of claim 1 wherein said uplink function comprises a connection to a single parent forming a logical tree network.

7. The system of claim 1 wherein said downlink function comprises a connection to other routers wherein said downlink routers do not communicate with one another directly, forming a logical tree network.

8. The system of claim 1 wherein each router sends a regular heart beat status update.