VEHICLE COMMUNICATION MESSAGE FORWARDING SYSTEM AND METHOD

• US 20130281141A1
• Filed: 07/26/2012
• Published: 10/24/2013
• Est. Priority Date: 04/24/2012
• Status: Abandoned Application

• Current Assignee: Zetta Research and Development LLC - FORC Series
• Original Assignee: Zetta Research and Development LLC - FORC Series
• Inventors: Rubin, Kim T., Betts-Lacroix, Jonathan N.
• Application Number:
  US13/559,508
• Publication Number:
  US 20130281141A1
• Time in Patent Office: Days
• US Class Current: 455/500
• CPC Class Codes: B60R 2325/205 Mobile phones
• CPC Class Codes: B60R 25/33 of global position, e.g. by providing GPS coordinates
• CPC Class Codes: B60W 10/06 including control of combustion engines
• CPC Class Codes: B60W 10/18 including control of braking systems
• CPC Class Codes: B60W 10/20 including control of steering systems
• CPC Class Codes: B60W 2556/50 of positioning data, e.g. GPS [Global Positioning System] data
• CPC Class Codes: B60W 50/14 Means for informing the driver, warning the driver or prompting a driver intervention
• CPC Class Codes: G01C 21/26 specially adapted for navigation in a road network
• CPC Class Codes: G01C 21/3658 Lane guidance
• CPC Class Codes: G01C 21/3822 Road feature data, e.g. slope data
• CPC Class Codes: G01S 5/0027 of actual mobile position, i.e. position determined on mobile
• CPC Class Codes: G08G 1/09 Arrangements for giving variable traffic instructions railroad crossing signals B61L; reflectors E01F, G08B; indicating arrangements for variable information by selection or combination of individual elements G09F9/00
• CPC Class Codes: G08G 1/096791 where the origin of the information is another vehicle
• CPC Class Codes: G08G 1/0969 having a display in the form of a map
• CPC Class Codes: G08G 1/142 external to the vehicles
• CPC Class Codes: G08G 1/16 Anti-collision systems road vehicle drive control systems for predicting or avoiding probable or impending collision otherwise than by control of a particular sub-unit B60W30/08
• CPC Class Codes: G08G 1/161 Decentralised systems, e.g. inter-vehicle communication
• CPC Class Codes: G08G 1/163 involving continuous checking
• CPC Class Codes: G08G 1/166 for active traffic, e.g. moving vehicles, pedestrians, bikes
• CPC Class Codes: G08G 1/167 Driving aids for lane monitoring, lane changing, e.g. blind spot detection
• CPC Class Codes: G08G 1/20 : Monitoring the location of vehicles belonging to a group, e.g. fleet of vehicles, countable or determined number of vehicles
• CPC Class Codes: G08G 9/02 : Anti-collision systems
• CPC Class Codes: H04J 3/1694 : Allocation of channels in TDM/TDMA networks, e.g. distributed multiplexers Passive Optical Networks H04Q11/0062
• CPC Class Codes: H04L 5/0091 : Signaling for the administration of the divided path
• CPC Class Codes: H04W 4/027 : using movement velocity, acceleration information
• CPC Class Codes: H04W 4/06 : Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services
• CPC Class Codes: H04W 4/46 : for vehicle-to-vehicle communication [V2V]
• CPC Class Codes: H04W 4/48 : for in-vehicle communication
• CPC Class Codes: H04W 56/0035 : detecting errors in frequency or phase
• CPC Class Codes: H04W 64/006 : with additional information processing, e.g. for direction or speed determination
• CPC Class Codes: H04W 72/0446 : Resources in time domain, e.g. slots or frames
• CPC Class Codes: H04W 72/30 : Resource management for broadcast services
• CPC Class Codes: H04W 74/0816 : with collision avoidance
• CPC Class Codes: H04W 76/14 : Direct-mode setup
• CPC Class Codes: H04W 76/40 : for selective distribution or broadcast

Abstract

Device, system and method, in a vehicle communication system of wirelessly forwarding safety related messages. Methods are provided for limiting the number of duplicated transmissions. Methods are provided for limiting the scope of forwarded message. One embodiment uses the distance of the message originator to a first message forwarder to limit duplicate messages. Various embodiments limit the scope of messages forwarding by using a forwarding count; by considering distance forwarded, and by considering the heading of vehicles performing the message forwarding. Forwarding distance depends of message type and the risk contained within the message, in some embodiments. An embodiment uses a compact message encoding to identify an original versus a forwarded message.

Claims

1. A vehicle-to-vehicle (V2V) communication system comprising:

a plurality of vehicles;

a V2V transceiver in each vehicle;

wherein each V2V transceiver, the first V2V transceiver, is configured to receive a V2V message, the received message, from a second V2V transceiver, and wherein the first V2V receiver is configured to broadcast a new message, the forwarded message, wherein the core contents of the forwarded message are substantially the same as the core contents of the received message;

wherein the forwarded message is modified to indicate that it is not the original broadcast of the core contents of the forwarded message;

wherein the receiving and broadcasting of forwarded messages is repeated within the V2V communications system a finite and deterministic number of times;

wherein the forwarded messages are free of a specific recipient identifier.

2. The vehicle-to-vehicle (V2V) communication system of claim 1 further comprising:

each V2V transceiver is further configured to compare a metric contained in the received message with a forwarding limit;

wherein the forwarded message is broadcast only if the metric contained in the received message is less than the forwarding limit.

3. The vehicle-to-vehicle (V2V) communication system of claim 2 wherein:

the metric comprises the allowable number of message forwarding increments;

4. The vehicle-to-vehicle (V2V) communication system of claim 2 wherein:

wherein the metric comprises an original location wherein the original location is the location where the core contents are first broadcast;

wherein the forwarding limit comprises a maximum allowable distance between the first V2V transceiver location and the original location.

5. The vehicle-to-vehicle (V2V) communication system of claim 4 further comprising:

wherein the forwarding limit varies and is responsive to a heading.

6. The vehicle-to-vehicle (V2V) communication system of claim 4 further comprising:

wherein the forwarding limit varies and is responsive to a collision risk value.

7. The vehicle-to-vehicle (V2V) communication system of claim 4 further comprising:

wherein the forwarding limit varies and is responsive to one or more sub-message types contained in the original message.

8. The vehicle-to-vehicle (V2V) communication system of claim 1 wherein:

the V2V transceiver is configured to listen for other copies of the forwarded message broadcast by a third V2V transceiver, the “

intermediate V2V transmitter;

”

wherein the V2V transceiver is configured to only broadcast a forwarded message when the distance between the first V2V transceiver location and the location contained in the original message is greater than the distance between the intermediate V2V transceiver location and the location contained in the original message, as measured along a heading that is substantially the heading of the first V2V transceiver.

9. A vehicle-to-vehicle (V2V) transceiver comprising wherein:

a location determination module, wherein the location determination module determines the location of the V2V transceiver;

a wireless receive module;

a wireless transmit module;

a computation module operatively connected to the location determination module, the receive module, and the transmit module, and wherein the computation module is configured to;

receive a V2V message from the receive module, the received message, from a second V2V transceiver, and wherein the first V2V receiver is configured to broadcast a new message via the transmit module, the forwarded message, wherein the core contents of the forwarded message are substantially the same as the core contents of the received message;

wherein the forwarded message is modified to indicate that it is not the original broadcast of the core contents of the forwarded message;

wherein the forwarded message is free of a specific recipient identifier.

10. A method of forwarding vehicle-to-vehicle (V2V) messages comprising:

broadcasting an original V2V message from a first V2V transceiver wherein the message comprises a forwarding limit metric and original core data;

receiving a V2V message, the received message, by a second V2V transceiver, wherein the received message comprises the same forwarding limit metric as the original V2V message;

comparing the forwarding limit metric in the received message to a forwarding limit;

broadcasting a new V2V message, the forwarded message, by the second V2V transceiver, only if the forwarding limit metric contained in the received message is less than the forwarding limit; and

wherein the forwarded message comprises as forwarded data substantially the same data as the original core data;

wherein the forwarded message additionally comprises an indication that it is a forwarded message;

wherein the forwarded message is free of a specific recipient identifier.