Method and apparatus for adjusting data transmission rate between vehicle and access point

An apparatus for adjusting a data transmission rate between a vehicle and an access point (AP), the apparatus comprising:

• a communication unit configured to receive a signal broadcast from at least one AP near the vehicle and transmit and/or receive data to and/or from a predetermined AP at a first data transmission rate R0 on the basis of the received signal;
• a storage unit configured to receive signals broadcast from a plurality of APs near the vehicle through the communication unit in every predetermined period while the vehicle is moving and to store the received signals;
• an analysis unit configured to determine the number NT of APs having broadcast signals with strength greater than or equal to a threshold value among the signals received from the plurality of APs and to compare the number NT of APs to the number NT-1 of APs having broadcast signals with strength greater than or equal to the threshold value in a previous period;
• and
• a control unit configured to determine a data transmission rate between the vehicle and the AP on the basis of a result of the comparison.