Geometry-based listen-before-talk (LBT) sensing for traffic-related physical ranging signals

A Road Side Unit (RSU) for Listen Before Talk (LBT) sensing and transmitting physical ranging signals among a plurality of vehicles, the RSU comprising:

• a wireless communication interface;
• a memory;
• and
• one or more processing units communicatively coupled with the memory and the wireless communication interface and configured to:
• obtain location information regarding the location for each vehicle of the plurality of vehicles;
• determine, based on the location information, that each vehicle of the plurality of vehicles is located within a section of a road associated with the RSU;
• create a message, wherein the message is indicative of a sequence of Physical Ranging Signal (PRS) transmissions by vehicles of the plurality of vehicles;
• wirelessly transmit the message via the wireless communication interface;
• determine that a Radio Frequency (RF) channel on which PRS signals are to be transmitted is available;
• and
• responsive to determining that the RF channel on which PRS signals are to be transmitted is available, initiate the sequence of PRS transmissions by transmitting a first PRS.

A device for Listen Before Talk (LBT) sensing and transmitting physical ranging signals among a plurality of vehicles, the device comprising:

• means for obtaining location information regarding the location for each vehicle of the plurality of vehicles;
• means for determining, based on the location information, that each vehicle of the plurality of vehicles is located within a section of a road associated with a Road Side Unit (RSU);
• means for creating a message, wherein the message is indicative of a sequence of Physical Ranging Signal (PRS) transmissions by vehicles of the plurality of vehicles;
• means for wirelessly transmitting the message;
• means for determining that a Radio Frequency (RF) channel on which PRS signals are to be transmitted is available;
• and
• means for, responsive to determining that the RF channel on which PRS signals are to be transmitted is available, initiating the sequence of PRS transmissions by transmitting a first PRS.

A non-transitory computer-readable medium having instructions embedded therewith for Listen Before Talk (LBT) sensing and transmitting physical ranging signals among a plurality of vehicles, wherein the instructions, when executed by one or more processing units, cause the one or more processing units to:

• obtain location information regarding the location for each vehicle of the plurality of vehicles;
• determine, based on the location information, that each vehicle of the plurality of vehicles is located within a section of a road associated with a Road Side Unit (RSU);
• create a message, wherein the message is indicative of a sequence of Physical Ranging Signal (PRS) transmissions by vehicles of the plurality of vehicles;
• wirelessly transmit the message;
• determine that a Radio Frequency (RF) channel on which PRS signals are to be transmitted is available;
• and
• responsive to determining that the RF channel on which PRS signals are to be transmitted is available, initiate the sequence of PRS transmissions by transmitting a first PRS.