INFORMATION DISSEMINATION IN A MULTI-TECHNOLOGY COMMUNICATION NETWORK

• US 20180054773A1
• Filed: 10/12/2017
• Published: 02/22/2018
• Est. Priority Date: 07/30/2014
• Status: Active Grant

• Current Assignee: NEC Corporation
• Original Assignee: NEC Europe Ltd (NEC Corporation)
• Inventors: Miranda d'Orey, Pedro, Maslekar, Nitin, Zahariev, Nikola
• Granted Patent: US 10,631,228 B2
• Time in Patent Office: Days
• CPC Class Codes: H04W 4/046 involving vehicles, e.g. floating traffic data [FTD] or vehicle traffic prediction
• CPC Class Codes: H04W 4/44 for communication between vehicles and infrastructures, e.g. vehicle-to-cloud [V2C] or vehicle-to-home [V2H]
• CPC Class Codes: H04W 4/46 for vehicle-to-vehicle communication [V2V]
• CPC Class Codes: H04W 40/04 based on wireless node resources
• CPC Class Codes: H04W 40/12 based on transmission quality or channel quality
• CPC Class Codes: H04W 40/20 based on geographic position or location
• CPC Class Codes: H04W 40/22 using selective relaying for reaching a BTS [Base Transceiver Station] or an access point
• CPC Class Codes: H04W 40/34 Modification of an existing route
• CPC Class Codes: H04W 84/005 Moving wireless networks
• CPC Class Codes: H04W 84/18 Self-organising networks, e.g. ad-hoc networks or sensor networks
• CPC Class Codes: H04W 88/04 adapted for relaying to or from another terminal or user
• CPC Class Codes: H04W 88/06 adapted for operation in multiple networks or having at least two operational modes, e.g. multi-mode terminals
• CPC Class Codes: H04W 88/16 Gateway arrangements

Abstract

A method for executing or adapting a forwarding strategy in a vehicular ad-hoc network (VANET) includes performing, by a first vehicle being a node in the VANET, the following actions: analyzing current environmental conditions; creating a forwarding strategy based on the current environmental conditions; and forwarding information to other vehicles in the VANET according to the created forwarding strategy.

Claims

1. A method for executing or adapting a forwarding strategy in a vehicular ad-hoc network (VANET), the method comprising:

performing, by a first vehicle being a node in the VANET, the following actions;

analyzing current environmental conditions;

creating a forwarding strategy based on the current environmental conditions; and

forwarding information to other vehicles in the VANET according to the created forwarding strategy.

2. The method according to claim 1, further comprising determining, by the first vehicle, that the created forwarding strategy is different than a previously received forwarding strategy, and exchanging the previously received forwarding strategy for the created forwarding strategy.

3. The method according to claim 1, further comprising reporting, by the first vehicle, information to a central entity of the VANET, wherein the central entity determines coverage areas of nodes of the VANET.

4. The method according to claim 3, wherein the information reported to the central entity includes one or more of a speed of the first vehicle, a position of the first vehicle, connectivity information of the first vehicle, link quality to one or more neighbor vehicles or road-side network nodes, cellular latency, and packet loss.

5. The method according to claim 3, wherein the information reported to the central entity is transmitted at regular intervals.

6. The method according to claim 1, wherein the forwarding information to other vehicles in the VANET according to the created forwarding strategy comprises forwarding information to other vehicles via short-range communications.

7. The method according to claim 6, wherein the short-range communications are transmitted via a wireless local area network (WLAN) channel.

8. The method according to claim 6, wherein the short-range communications are transmitted via ITS-G5 vehicle-to-vehicle technology or via LTE device-to-device technology.

9. The method according to claim 1, further comprising forwarding information to VANET infrastructure via long-range communications.

10. The method according to claim 1, the method further comprising determining that the first vehicle has been selected as a forwarder node.

11. The method according to claim 10, wherein the determining that the first vehicle has been selected as a forwarder node comprises determining that a previously received forwarding strategy has selected the first vehicle as a forwarder node.

12. The method according to claim 1, wherein the current environmental conditions include one or more of a speed of the first vehicle, a position of the first vehicle, connectivity information of the first vehicle, link quality to one or more neighbor vehicles or road-side network nodes, cellular latency, and packet loss.

13. A vehicle in a vehicular ad-hoc network (VANET), the vehicle being configured to:

analyze current environmental conditions;

create a forwarding strategy based on the current environmental conditions; and

forward information to other vehicles in the VANET according to the created forwarding strategy.

14. The vehicle according to claim 13, wherein the current environmental conditions include one or more of a speed of the first vehicle, a position of the first vehicle, connectivity information of the first vehicle, link quality to one or more neighbor vehicles or road-side network nodes, cellular latency, and packet loss.

15. The vehicle according to claim 13, wherein the vehicle is further configured to determine that the created forwarding strategy is different than a previously received forwarding strategy, and exchanging the previously received forwarding strategy for the created forwarding strategy.