V2X Cellular Communcation Synchronization And Initiation Independent Of A Cellular Base Station
AssigneeFord Global Technologies, LLC
InventorsAnjali Mishra, Yu Ho Lee
Life of this patent
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Abstract
A cellular vehicle-to-everything (C-V2X) [including V2V] communication system obtains location and time data from one or more GNSS signals and retrieves cellular synchronization information (including but not limited to 3GPP MIP and/or SIB) from a pre-loaded database and uses the information to establish a C-V2V connection with another vehicle. Synchronization may be repeated after expiration of a time period. The time period may be selected according to a location and velocity of the vehicle. Other sources of time data may be used when GNSS signals are not available, such as an internal crystal clock or timing from a cellular base station.
Claims20
A method comprising, by a vehicle computer:
- (a) receiving signals from a global navigation satellite system;
- (b) extracting time and a location from the signals;
- (c) retrieving, from a pre-loaded database stored in the vehicle computer, communication parameters associated with the location, the pre-loaded database not being received from any cellular base station;
- and
- (d) initiating communication with another vehicle according to the communication parameters;
- wherein the vehicle computer comprises:
- a cellular vehicle-to-vehicle (C-V2V) component including a first cellular antenna;
- and
- a cellular data communication component including a second cellular antenna, the C-V2V component being isolated from the cellular data communication component;
- the method comprising performing (a) through (d) by the C-V2V component.
A method comprising, by a vehicle computer:
- (a) receiving signals from a global navigation satellite system;
- (b) extracting time and a location from the signals;
- (c) retrieving, from a pre-loaded database stored in the vehicle computer, communication parameters associated with the location, the pre-loaded database not being received from any cellular base station;
- and
- (d) initiating communication with another vehicle according to the communication parameters;
- wherein the communication parameters include a master information block (MIB) and a system information block (SIB) according to 3rd Generation Partnership Project (3GPP).
(canceled)
The method of claim 7, further comprising performing (a) through (d) without accessing subscriber identification information of the cellular data communication component.
(canceled)
A method comprising, by a vehicle computer:
- (a) receiving signals from a global navigation satellite system;
- (b) extracting time and a location from the signals;
- (c) retrieving, from a pre-loaded database stored in the vehicle computer, communication parameters associated with the location, the pre-loaded database not being received from any cellular base station;
- (d) initiating communication with another vehicle according to the communication parameters;
- (e) initiating a timer;
- and
- (f) upon expiration of the timer, repeating (a) through (f);
- wherein initiating the timer comprises:
- determining a location and velocity of a vehicle housing the vehicle computer;
- determining a traversal time to leave geographic region associated with the communication parameters;
- and
- initiating the timer to count down from the traversal time.
A vehicle comprising, a vehicle-to-vehicle (V2V) communication system programmed to:
- (a) receive signals from a global navigation satellite system (GNSS);
- (b) extract time and a location from the signals;
- (c) retrieve, from a pre-loaded database stored in the vehicle computer, communication parameters associated with the location, the pre-loaded database not being received from any cellular base station, the communication parameters including a communication frequency;
- and
- (d) initiate and maintain communication with another vehicle according to the communication parameters independent of any cellular base station;
- wherein the V2V communication system comprises:
- a cellular vehicle-to-vehicle (C-V2V) component including a first cellular antenna;
- and
- a cellular data communication component including a second cellular antenna, the C-V2V component being isolated from the cellular data communication component, the C-V2V component being programmed to perform (a) through (d).
A vehicle comprising, a vehicle-to-vehicle (V2V) communication system programmed to:
- (a) receive signals from a global navigation satellite system (GNSS);
- (b) extract time and a location from the signals;
- (c) retrieve, from a pre-loaded database stored in the vehicle computer, communication parameters associated with the location, the pre-loaded database not being received from any cellular base station, the communication parameters including a communication frequency;
- and
- (d) initiate and maintain communication with another vehicle according to the communication parameters independent of any cellular base station;
- wherein the communication parameters include a master information block (MIB) and system;
- and
- wherein the communication parameters include C-V2X (Cellular Vehicle to Everything) synchronization preconfigured parameters.
(canceled)
(canceled)
A vehicle comprising, a vehicle-to-vehicle (V2V) communication system programmed to:
- (a) receive signals from a global navigation satellite system (GNSS);
- (b) extract time and a location from the signals;
- (c) retrieve, from a pre-loaded database stored in the vehicle computer, communication parameters associated with the location, the pre-loaded database not being received from any cellular base station, the communication parameters including a communication frequency;
- (d) initiate and maintain communication with another vehicle according to the communication parameters independent of any cellular base station
- (e) initiate a timer;
- and
- (f) upon expiration of the timer, repeat (a) through (f)
- wherein the V2V communication system is further programmed to initiate the timer by:
- determine a location and velocity of a vehicle housing the vehicle computer;
- determine a traversal time to leave geographic region associated with the communication parameters;
- and
- initiate the timer to count down from the traversal time.
Dependencies are inferred from the claim text.