Method for implementing a wireless data exchange between a fixed station and moving objects particularly vehicles

A method of performing a wireless data exchange between a fixed station and a plurality of objects moving relative to the fixed station on a road, a first object of the plurality of objects moving on the road in a first lane of a plurality of lanes of the road, comprising the steps of:

• in a first phase,
• sweeping a search territory in each lane of the plurality of lanes using a corresponding one of a plurality of antennas of the fixed station, the plurality of antennas corresponding to the plurality of lanes, a first antenna of the plurality of antennas corresponding to the first lane, the first antenna generating an output beam having a profile,
• checking for a response signal from a transceiver disposed on the first object using the first antenna, and
• determining a location of the first object using only the first antenna based upon a correlation between a time of reception of the response signal and an instantaneous adjustment value of the profile of the first antenna, the instantaneous adjustment value indicating an instantaneous amplitude of the response signal;
• and
• in a second phase,
• fixing the profile of the first antenna on the transceiver of the first object in the first lane using the determined location of the first object in order to perform the data exchange between the transceiver of the first object and the first antenna.

A method of performing a wireless data exchange between a fixed station and an object moving relative to the fixed station, the object moving on a road having a first lane, comprising the steps of:

• in a first phase,
• scanning, with a first antenna which generates an output beam having a corresponding profile, a corresponding communication zone in the first lane,
• checking for a response signal from a transceiver disposed on the object appearing in the corresponding communication zone using the first antenna, and
• estimating a location of the object in the corresponding communication zone of the first lane with the first antenna based upon a correlation between a time of reception of the response signal and an instantaneous adjustment value of the profile of the first antenna, the instantaneous adjustment value indicating an instantaneous amplitude of the response signal;
• and
• in a second phase,
• tracking the profile of the first antenna on the transceiver to follow the motion of the object using the estimated location of the object in the first lane in order to perform the data exchange between the first antenna and the transceiver of the object.