Optimizing message forwarding in a wireless mesh network

Patent metadata

Field	Value
Publication number	US-2017181053-A1
Application number	US-201314759817-A
Country	US
Kind code	A1
Filing date	Dec 31, 2013
Priority date	Jan 8, 2013
Publication date	Jun 22, 2017
Grant date	—

Abstract

For ensuring reliability of data transmission in a wireless mesh network, while reducing the data overhead of the transmissions, a node for a wireless mesh network and a method of controlling the same are provided, wherein the node is configured to decide about retransmission of a message received from a transmitting node, based on whether the transmitting node has at least one layout element of a layout plan in common with the node, at least one of the layout elements of the layout plan being associated with the node.

First claim

1 . A node of a wireless network, comprising
a control unit configured to decide about retransmission of a message received from a transmitting node, based on whether the transmitting node has at least one layout element of a layout plan in common with the node, wherein the layout plan relates to a spatial arrangement of the wireless network, and wherein the at least one layout element of the layout plan is associated with the node.

2 . The node according to claim 1 , wherein the control unit is configured to retransmit the received message, only if the node and the transmitting node have at least one layout element in common.

3 . The node according to claim 1 , wherein the decision about retransmission is based on at least one of
an indicator included in the received message, layout parameters of the node and stored neighborhood information.

4 . The node according to claim 3 , wherein the indicator includes at least one of
an identifier of the transmitting node, at least one identifier of a layout element associated with the transmitting node, and additional layout information about the transmitting node.

5 . The node according to claim 1 , wherein the control unit is configured to decide about a retransmission mode of the received message, based on a number of layout elements associated with the node.

6 . The node according to claim 5 , wherein the retransmission mode includes at least one of:
a probabilistic approach and a counter-based approach, based on a number of retransmissions of the message by neighbor nodes received within a predetermined time.

7 . The node according to claim 6 , wherein at least one of a probability for retransmission and the predetermined time is set based on at least one of a distance to a layout element, a distance to an originator node, which has first sent the message, and a number of layout elements associated with the node.

8 . The node according to claim 1 , wherein when at least one of a retransmission and transmission of the message is received from a neighbor node, the control unit is configured to decide about retransmitting the message, based on a coverage of at least one of the retransmission and transmission of the neighbor node.

9 . The node according to claim 8 , wherein the coverage is determined based on at least one of:
an indicator included in the retransmitted message and stored neighborhood information.

10 . The node according to claim 8 , wherein if the node is associated with more than one layout element, only retransmissions of neighbor nodes that are also associated with more than one layout element are considered.

11 . The node according to claim 1 , wherein the control unit is configured to determine at least one of a geographical and covered distance travelled by the received message, using the layout plan, and to decide to retransmit the message if the determined distance is within a predetermined distance limit.

12 . The node according to claim 1 , wherein the node further comprises a spatial unit for determining at least one of an absolute position of the node and a relative position of the node.

13 . The node according to claim 1 , wherein the layout plan includes at least one of: a city map, a plant layout, and a floor plan, and wherein the layout element includes at least one of a floor, a corridor, a room, a street, a crossing and a park area.

14 . The node according to claim 1 , wherein the node is included in a luminaire of at least one of an outdoor and indoor lighting system.

15 . A method of controlling a node of a wireless network, the method comprising the steps of:
receiving a message from a transmitting node by a receiving node; deciding about retransmission of the received message, based on whether the transmitting node and the receiving node have at least one layout element of a layout plan in common, wherein the layout plan relates to a spatial arrangement of the wireless network, and wherein at least one of the layout elements of the layout plan is associated with the node.

Assignees

• Koninklijke Philips Nv

Inventors

• Aoun Marc
• Goergen Daniel Martin
• Schenk Tim Corneel Wilhelmus

Classifications

• H04W28/0273

  adapting protocols for flow control or congestion control to wireless environment, e.g. adapting transmission control protocol [TCP] (wireless network protocols or protocol adaptations to wireless operation, e.g. wireless application protocol H04W80/00) · CPC title

• H05B47/19

  via wireless transmission · CPC title

• H04W84/18

  Self-organising networks, e.g. ad-hoc networks or sensor networks · CPC title

• H04W28/0226 Primary

  based on location or mobility (handoff or reselection H04W36/00; mobile application services making use of the location of users or terminals H04W4/02) · CPC title

• H04W24/02 Primary

  Arrangements for optimising operational condition · CPC title