Roadway communication system with multicast

Patent metadata

Field	Value
Publication number	US-11228869-B2
Application number	US-201716490222-A
Country	US
Kind code	B2
Filing date	Mar 31, 2017
Priority date	Mar 31, 2017
Publication date	Jan 18, 2022
Grant date	Jan 18, 2022

Abstract

Techniques for providing cooperative communication via multicast communications are disclosed. An example apparatus comprises a memory and processing circuitry coupled to the memory. The processing circuitry is configured to generate a multicast group address based, at least in part, on a geographical region of the apparatus, and broadcast the multicast group address to allow cooperative communication enabled devices to join a multicast group corresponding to the multicast group address. The apparatus is also configured to receive requests from the cooperative communication enabled devices to join the multicast group. The apparatus is also configured to transmit messages to the multicast group via multicast communications.

First claim

What is claimed is:

1. An apparatus for cooperative communication via multicast communications comprising:
a memory; and
processing circuitry coupled to the memory, wherein the processing circuitry is configured to:
generate a multicast group address based, at least in part, on a geographical region of the apparatus;
broadcast the multicast group address to allow cooperative communication enabled devices to join a multicast group corresponding to the multicast group address;
receive requests from the cooperative communication enabled devices to join the multicast group; and
transmit cooperative communication messages to the multicast group via multicast communications.

2. The apparatus of claim 1 , further comprising a Wireless Access for Vehicular Environments (WAVE) Media Access Controller (MAC) protocol layer and WiFi Aware layer within the processing circuitry, wherein the WiFi Aware layer coordinates the multicast communications through the WAVE MAC.

3. The apparatus of claim 2 , further comprising a Dedicated Short-Range Communications (DSRC) application and a Wave Short Message Protocol (WSMP) layer within the processing circuitry to provide message passing services to the DSRC application, wherein the WiFi Aware layer provides a multicast service to the DSRC application and WSMP layer.

4. The apparatus of claim 1 , wherein the multicast group address comprises a location and distance that define a geographical region of the multicast group.

5. The apparatus of claim 1 , wherein the processing circuitry is configured to dynamically update the multicast group address to limit a number of cooperative communication enabled devices that can join the multicast group.

6. The apparatus of claim 5 , wherein processing circuitry dynamically updates the multicast group address, by updating a distance from the apparatus based at least in part on traffic density.

7. The apparatus of claim 1 , wherein the processing circuitry is configured to dynamically update the multicast group address based on movement of the apparatus and services offered.

8. The apparatus of claim 1 , wherein the processing circuitry is configured to select a channel on which to transmit the cooperative communication messages and wherein the multicast group address is based in part on the channel.

9. The apparatus of claim 1 , wherein the apparatus is implemented in a stationary roadside unit.

10. The apparatus of claim 1 , wherein the apparatus is implemented in a vehicle configured to provide a platooning service via multicast communications.

11. A tangible, non-transitory, computer-readable medium comprising instructions that, when executed by a processor, direct the processor to create a multicast group for cooperative communications, the instructions to direct the processor to:
generate a multicast group address based, at least in part, on a geographical region;
control a wireless transmission to broadcast the multicast group address to allow cooperative communication enabled devices to join a multicast group corresponding to the multicast group address;
receive requests from the cooperative communication enabled devices to join the multicast group; and
control a wireless transmission of cooperative communication messages to the multicast group via multicast communications.

12. The computer-readable medium of claim 11 , comprising a WiFi Aware layer to coordinate the multicast communications through a Wireless Access for Vehicular Environments (WAVE) Media Access Controller (MAC).

13. The computer-readable medium of claim 12 , comprising a Dedicated Short-Range Communications (DSRC) application and a Wave Short Message Protocol (WSMP) layer that provides message passing services to DSRC application, wherein the WiFi Aware layer provides a multicast service to the DSRC application and WSMP layer.

14. The computer-readable medium of claim 11 , wherein the multicast group address comprises a location and distance that define a geographical region of the multicast group.

15. The computer-readable medium of claim 11 , comprising instructions to direct the processor to dynamically update the multicast group address to limit a number of cooperative communication enabled devices that can join the multicast group.

16. The computer-readable medium of claim 15 , wherein to dynamically update the multicast group address, the instructions direct the processor to update a distance based at least in part on traffic density.

17. The computer-readable medium of claim 11 , comprising instructions to direct the processor to dynamically update the multicast group address based on movement and services offered.

18. The computer-readable medium of claim 11 , comprising instructions to direct the processor to select a channel on which to transmit the cooperative communication messages, wherein the multicast group address is based in part on the channel.

19. The computer-readable medium of claim 11 , wherein the computer-readable medium is configured to be included in a stationary roadside unit.

20. The computer-readable medium of claim 11 , wherein the computer-readable medium is configured to be included in a vehicle configured to provide a platooning service via multicast communications.

21. A method of providing cooperative communication messages via multicast, comprising
generating a multicast group address based, at least in part, on a geographical region of a multicast group;
broadcasting the multicast group address to allow cooperative communication enabled devices to join the multicast group;
receiving requests from the cooperative communication enabled devices to join the multicast group; and
transmitting cooperative communication messages to the multicast group via multicast communications.

22. The method of claim 21 , comprising coordinating the multicast communications by a WiFi Aware service that controls a Wireless Access for Vehicular Environments (WAVE) Media Access Controller (MAC).

23. The method of claim 22 , comprising providing message passing services to a Dedicated Short-Range Communications (DSRC) application through a Wave Short Message Protocol (WSMP) layer, wherein the WiFi Aware service provides a multicast service to the DSRC application and the WSMP layer.

24. The method of claim 21 , wherein the multicast group address comprises a location and distance that define a geographical region of the multicast group.

25. The method of claim 21 , comprising dynamically updating the multicast group address to limit a number of cooperative communication enabled devices that can join the multicast group.

Assignees

• Intel Corp

Inventors

• Moustafa Hassnaa
• Sadeghi Bahareh
• Cavalcanti Dave

Classifications

• H04L2101/69

  using geographic information, e.g. room number · CPC title

• H04L61/5069

  for group communication, multicast communication or broadcast communication · CPC title

• H04L67/12

  specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks · CPC title

• H04W4/08 Primary

  User group management · CPC title

• H04W4/40

  for vehicles, e.g. vehicle-to-pedestrians [V2P] · CPC title