METHOD AND DEVICE FOR THE WIRELESS TRANSMISSION OF DATA IN NETWORKS

• US 20200137662A1
• Filed: 10/25/2019
• Published: 04/30/2020
• Est. Priority Date: 10/29/2018
• Status: Active Application

• Current Assignee: Commissariat a L'Energie Atomique (AES Corporation)
• Original Assignee: Commissariat a L'Energie Atomique (AES Corporation)
• Inventors: KELLIL, Mounir, ROUX, Pierre, JANNETEAU, Christophe
• Application Number:
  US16/664,656
• Publication Number:
  US 20200137662A1
• Time in Patent Office: Days
• CPC Class Codes: H04B 11/00 Transmission systems employing sonic, ultrasonic or infrasonic waves
• CPC Class Codes: H04L 12/4625 Single bridge functionality, e.g. connection of two networks over a single bridge
• CPC Class Codes: H04L 43/10 Active monitoring, e.g. heartbeat, ping or trace-route
• CPC Class Codes: H04L 43/12 Network monitoring probes
• CPC Class Codes: H04W 24/08 Testing, supervising or monitoring using real traffic
• CPC Class Codes: H04W 40/32 for defining a routing cluster membership
• CPC Class Codes: H04W 84/02 Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
• CPC Class Codes: H04W 84/18 Self-organising networks, e.g. ad-hoc networks or sensor networks

Abstract

A method implemented by computer to transmit data blocks formed by several data fragments, in a wireless network includes a plurality of nodes, the network having at least one routing path defined between a source node and a destination node and composed of a plurality of nodes such that three nodes at positions n/n+1/n+2 on the routing path define a child/parent/grandparent triad, the method comprising at least the following steps carried out on a triad of child, parent and grandparent nodes: sending from a child node a child/parent probing message, referred to as a “ping” message, to a parent node; sending from the parent node having received the “ping” message a parent/grandparent probing message, referred to as a “yin” message, to a grandparent node, if the parent node is available in a wait state; sending from the grandparent node having received the “yin” message a parent/grandparent probing response message, referred to as a “yang” message, to the parent node, if the grandparent node is available; sending from the parent node having received the “yang” message a child/parent probing response message, referred to as a “pong” message, to the child node, if the parent node is still available; and upon reception of the “pong” message by the child node, transmitting a data fragment from the child node to the parent node.

Claims

1. A method implemented by computer to transmit data blocks formed by several data fragments, in a wireless network comprising a plurality of nodes, the network having at least one routing path defined between a source node and a destination node and composed of a plurality of nodes such that three nodes at positions n/n+1/n+2 on the routing path define a child/parent/grandparent triad, the method comprising at least the following steps performed on a triad of child, parent and grandparent nodes:

sending from a child node a child/parent probing message, referred to as a “

ping”

message, to a parent node;

sending from the parent node having received the “

ping”

message a parent/grandparent probing message, referred to as a “

yin”

message, to a grandparent node, if the parent node is available in a wait state;

sending from the said grandparent node having received the “

yin”

message a parent/grandparent probing response message, referred to as a “

yang”

message, to the said parent node, if the grandparent node is available;

sending from the said parent node having received the “

yang”

message a child/parent probing response message, referred to as a “

pong”

message, to the said child node, if the parent node is still available; and

upon reception of the “

pong”

message by the child node, transmitting a data fragment from the child node to the said parent node.

2. The method according to claim 1, wherein the steps are repeated for several triads of child/parent/grandparent nodes, on the routing path from the data transmitting source node up to the recipient node for the data.

3. The method according to either claim 1, wherein the triads of child/parent/grandparent nodes are predefined.

4. The method as claimed in claim 1, wherein the data transmission step consists in successively transmitting data packets.

5. The method according to claim 1, additionally comprising a step for verifying the integrity of the data received.

6. The method as claimed in claim 1, wherein the “

ping”

, “

yin”

probing messages and the “

yang”

, “

pong”

probing response messages are short messages encoded in ASCII.

7. A device for transmitting data blocks formed by several data fragments, in a wireless network comprising a plurality of nodes, the network having at least one routing path defined between a source node and a destination node and being composed of a plurality of nodes such that three nodes at positions n/n+1/n+2 on the routing path define a child/parent/grandparent triad, the device comprising means for implementing the steps of the method according to claim 1.

8. The device according to claim 7, wherein the wireless network is a mesh network.

9. The device according to claim 8, wherein the mesh network is a mesh network comprising a plurality of acoustic modems.

10. The device according to claim 9, wherein one modem is a source node corresponding to an autonomous underwater vehicle and one modem is a gateway node to a ship, the device enabling the transmission of data relating to measurement reports, from the autonomous underwater vehicle to the ship.

11. The device according to claim 10, wherein each modem is coupled respectively to a modem controller, in particular via an RS232 serial link.

12. The device as claimed in claim 7, wherein the means for carrying out the steps of the method are a state machine.

13. A computer program product, the said computer program comprising non-transient code instructions for carrying out the steps of the method according to claim 1, when the said program is executed on a computer.