# US 2013/0278441 A1 · Vehicle proxying

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- Number: US 2013/0278441 A1
- Document ID: US20130278441A1
- Status: Published application
- Kind: A1
- Application number: 13/556,123
- Filed: 2012-07-23
- Published: 2013-10-24
- Earliest claimed: 2012-04-24
- Assignees: Zetta Research and Development, LLC - ForC Series
- Inventors: Kim T Rubin; Jonathan Betts-Lacroix
- Web page: https://patentgrep.com/patent/US20130278441A1

## CPC

- G01C 21/3822: {Road feature data, e.g. slope data}
- G08G 1/096791: {where the origin of the information is another vehicle}
- G01C 21/26: specially adapted for navigation in a road network
- G01C 21/3658: {Lane guidance}
- 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)
- G08G 1/0969: having a display in the form of a map
- G08G 1/142: {external to the vehicles}
- 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)
- G08G 1/161: {Decentralised systems, e.g. inter-vehicle communication}
- G08G 1/163: {involving continuous checking}
- G08G 1/166: {for active traffic, e.g. moving vehicles, pedestrians, bikes}
- G08G 1/167: {Driving aids for lane monitoring, lane changing, e.g. blind spot detection}
- G08G 9/02: Anti-collision systems
- H04J 3/1694: {Allocation of channels in TDM/TDMA networks, e.g. distributed multiplexers (Passive Optical Networks H04Q11/0062)}
- H04L 5/0091: {Signalling for the administration of the divided path, e.g. signalling of configuration information}
- H04W 4/027: {using movement velocity, acceleration information}
- H04W 4/06: Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services
- H04W 4/46: for vehicle-to-vehicle communication [V2V]
- H04W 4/48: for in-vehicle communication
- H04W 56/0035: {detecting errors in frequency or phase}
- H04W 72/0446: Resources in time domain, e.g. slots or frames
- H04W 72/30: Resource management for broadcast services
- H04W 74/0816: with collision avoidance
- B60R 25/33: of global position, e.g. by providing GPS coordinates
- B60R 2325/205: Mobile phones
- B60W 10/06: including control of combustion engines
- B60W 10/18: including control of braking systems
- B60W 10/20: including control of steering systems
- B60W 50/14: Means for informing the driver, warning the driver or prompting a driver intervention
- B60W 2556/50: of positioning data, e.g. GPS [Global Positioning System] data
- G01S 5/0027: {of actual mobile position, i.e. position determined on mobile}
- G08G 1/20: {Monitoring the location of vehicles belonging to a group, e.g. fleet of vehicles, countable or determined number of vehicles}
- H04W 64/006: {with additional information processing, e.g. for direction or speed determination}
- H04W 76/14: Direct-mode setup
- H04W 76/40: for selective distribution or broadcast
- G01C: MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY (measuring liquid level G01F; radio navigation, determining distance or velocity by use of propagation effects, e.g. Doppler effects, propagation time, of radio waves, analogous arrangements using other waves G01S)
- G08G: TRAFFIC CONTROL SYSTEMS (guiding railway traffic, ensuring the safety of railway traffic B61L; arrangement of road signs or traffic signals E01F9/00; radar or analogous systems, sonar systems, lidar systems specially adapted for traffic control G01S13/91, G01S15/88, G01S17/88; {radar or analogous systems, sonar systems, lidar systems specially adapted for anti-collision purposes G01S13/93, G01S15/93, G01S17/93})
- H04J: MULTIPLEX COMMUNICATION (transmission in general H04B; peculiar to transmission of digital information H04L5/00; systems for the simultaneous or sequential transmission of more than one television signal H04N7/08; in exchanges H04Q11/00; stereophonic systems H04S)
- H04L: TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION (arrangements common to telegraphic and telephonic communication H04M)
- H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72)
- B60R: VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60W: CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- G01S: RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES

## Abstract

Device, system and method, in a vehicle communication system, to transmit wirelessly the position, heading and speed of a vehicle or other moving object. In a key embodiment the vehicle is other than the transmitting vehicle. Some embodiment use local sensors on a first vehicle, such as cameras, sonar, radar or LIDAR to identify the relative position, heading and speed of a second vehicle relative to the first, transmitting, vehicle. An embodiment uses the location of the vehicle whose information is being transmitted as the identification of the same vehicle. Embodiments also receive these messages. Embodiments use this information as warning and safety information to avoid or minimize vehicle collisions. A unique feature of some embodiments is that the messages are free of IP and MAC addresses.

## Claims

### Claim at position 1

1-15. (canceled)

### Claim 16

A vehicle-to-vehicle (V2V) communication system comprising:
a basic time interval, of predetermined length, which repeats continuously; wherein the basic time interval is comprised of predetermined, consecutive, enumerated timeslots;
a plurality of vehicles, each equipped with an associated V2V transponder;
wherein a first vehicle with a first V2V transponder is configured to accept as input the first vehicle's position and heading; and the first V2V transponder uses a first protocol to obtain a first transmit timeslot; and the first V2V transponder broadcasts real-time vehicle information for the first vehicle in the first transmit timeslot, repetitively, once per basic time interval;
a non-equipped second vehicle, free of a compatible V2V transponder;
vehicle sensors located on the first vehicle, wherein the vehicle sensors identify the relative position of the second vehicle from the first vehicle;
wherein the first V2V transponder broadcasts real-time vehicle information for the second vehicle, repetitively, once per basic time interval;
wherein the broadcasts information for the second vehicle is marked as a proxy message;
wherein the V2V communication system does not require fixed location, road-side units.

### Claim 17 (depends on 16)

The vehicle-to-vehicle (V2V) communication system of claim 16 wherein:
the broadcasts are in unencrypted cleartext.

### Claim 18 (depends on 16)

The vehicle-to-vehicle (V2V) communication system of claim 16 wherein:
the V2V communication system is free of required acknowledgments.

### Claim 19 (depends on 16)

The vehicle-to-vehicle (V2V) communication system of claim 16 wherein:
the first protocol to obtain a transmit timeslot is free of pre-assignment; and is free of a centralized assignment; and is free of assignment by a road-side unit.

### Claim 20 (depends on 16)

The vehicle-to-vehicle (V2V) communication system of claim 16 wherein:
the V2V transponder broadcasts are free of pre-assigned vehicle identification.

### Claim 21 (depends on 16)

The vehicle-to-vehicle (V2V) communication system of claim 16 wherein:
the V2V transponder, prior to broadcasting information for the second vehicle, uses again the first protocol to obtain a second transmit timeslot; and the first V2V transponder transmits real-time vehicle information for the second vehicle in the second timeslot; repetitively, once per basic time interval;

### Claim 22 (depends on 16)

The vehicle-to-vehicle (V2V) communication system of claim 16 wherein:
the real-time vehicle information comprises a relative vehicle location which is relative to a nearest grid point on a predetermined global grid; and wherein the V2V communication system is free of identification of the nearest grid point.

### Claim 23 (depends on 16)

The vehicle-to-vehicle (V2V) communication system of claim 16 wherein:
the real-time vehicle information comprises a relative vehicle location which is relative to a nearest grid point on a predetermined global grid; and wherein the V2V communication system is free of identification of the nearest grid point; and wherein the relative vehicle location is provided in units of distance; and wherein the predetermined global grid is defined in units of latitude degrees and longitude degrees.

### Claim 24 (depends on 16)

The vehicle-to-vehicle (V2V) communication system of claim 16 wherein:
the V2V communication system is free of pre-defined roadway segments.

### Claim 25 (depends on 16)

The vehicle-to-vehicle (V2V) communication system of claim 16 wherein:
the V2V communication system is free of a requirement for a pre-defined map database.

### Claim 26 (depends on 16)

The vehicle-to-vehicle (V2V) communication system of claim 16 wherein:
the repetitive broadcast by the first V2V transponder of real-time vehicle information for the second vehicle continues until the accuracy of the real-time vehicle information determined by the vehicle sensors is less than a predetermined threshold.

### Claim 27 (depends on 16)

The vehicle-to-vehicle (V2V) communication system of claim 16 wherein:
the repetitive broadcast by the first V2V transponder of real-time vehicle information for the second vehicle continues until the first V2V transponder receives a messages from a third vehicle, wherein the received message comprises real-time vehicle information for the second vehicle; and wherein the location of the third vehicle is closer to the second vehicle than the first vehicle.

### Claim 28 (depends on 16)

The vehicle-to-vehicle (V2V) communication system of claim 16 wherein:
the repetitive broadcast by the first V2V transponder of real-time vehicle information for the second vehicle initiates when a basic time interval contains no message comprising real-time vehicle information for the second vehicle.

### Claim 29 (depends on 16)

The vehicle-to-vehicle (V2V) communication system of claim 16 wherein:
the repetitive broadcast by the first V2V transponder of real-time vehicle information for the second vehicle initiates when a timeslot that previously contained a message comprising real-time vehicle information for the second vehicle no longer comprises a transmitted message.

### Claim 30 (depends on 16)

The vehicle-to-vehicle (V2V) communication system of claim 16 wherein:
the first V2V transponder broadcasts comprising real-time vehicle information for the first vehicle are free of MAC addresses and free of IP addresses.

### Claim 31 (depends on 16)

The vehicle-to-vehicle (V2V) communication system of claim 16 wherein:
the V2V system uses the physical location of a vehicle to uniquely identify a vehicle.

### Claim 32 (depends on 16)

The vehicle-to-vehicle (V2V) communication system of claim 16 wherein:
the marking of a broadcast message as comprising real-time vehicle information about the second vehicle comprises a single bit in the header of the message;
and wherein the broadcast message comprising real-time vehicle information about the second vehicle comprises the second vehicle's position, heading and speed.

### Claim 33 (depends on 16)

The vehicle-to-vehicle (V2V) communication system of claim 16 wherein:
the effective time at which the vehicle information in a message is valid is a pre-determined time relative to the start of the basic time interval in which the message is broadcast.

### Claim 34

A method of communicating vehicle-to-vehicle comprising:
repeating continuously a basic time interval, wherein the basic time interval is comprised of predetermined, consecutive, enumerated timeslots;
accepting as input a first vehicle's position and heading to a V2V transponder associated with the first vehicle; wherein the V2V transponder is not dependent on communication from fixed infrastructure;
using a first protocol by the V2V transponder to obtain a first timeslot;
broadcasting messages in the first timeslot repetitively in each basic time interval; wherein at least one message comprises real-time information about the first vehicle;
accepting as input a second vehicle's position relative to the first vehicle to the V2V transponder;
broadcasting a message comprising information about the second vehicle.

### Claim 35 (depends on 34)

A device of manufacture that implements the method in claim 34.