Method and apparatus for controlling antennas in vehicle communication system

1. A method for controlling antennas in a vehicle having an external antenna and an internal antenna, the method comprising:

triggering an eCall service function upon sensing an accident occurrence event;

measuring a quality of wireless signal received through a mobile communication antenna of the external antenna;

judging whether or not position information through a GPS antenna of the external antenna is normally acquired;

performing the eCall service through a mobile communication antenna of the internal antenna when the measured quality of the wireless signal is less than a reference quality value;

acquiring current position information through the GPS antenna of the internal antenna when the normal acquisition of the position information through the GPS antenna of the external antenna is unavailable; and

transmitting, by a rescue center, a warning message of an accident to approaching peripheral vehicles; and identifying, by the rescue center, an insurance company insuring the vehicle in the accident using vehicle information corresponding to the vehicle,

wherein the triggering an eCall service function uses a eCall button provided at one side of a room mirror,

wherein the warning message includes information regarding a position where the accident occurs and information regarding a traffic state around an area where the accident occurs, and

wherein the judging whether or not position information through a GPS antenna of the external antenna is determined based on a rate of normally received positioning signals during a designated first movement section.

2. The method according to claim 1 , wherein the accident occurrence event is generated when the intensity of impact applied to the exterior of the vehicle is greater than or equal to a reference impact intensity value.

3. The method according to claim 1 , wherein the accident occurrence event is generated when trouble or malfunction is sensed by an electronic controller in the vehicle.

4. The method according to claim 1 , wherein the accident occurrence event is generated when at least one air bag provided in the vehicle is deployed or an eCall button mounted in the vehicle is pressed.

5. The method according to claim 1 , further comprising judging whether or not the current position information is normally acquirable through the GPS antenna of the internal antenna during a designated second movement section.

6. The method according to claim 1 , wherein the measured quality of the one or more wireless signals is at least one of a received signal strength indicator (RSSI), a signal to noise ratio (SNR), a bit error rate (BER), and a block error rate (BLER) of wireless signals received from a base station of a mobile communication network.

7. The method according to claim 6 , wherein the quality of the wireless signals is determined by averaging values periodically measured for a unit time.

8. The method according to claim 1 , further comprising acquiring current position information of the vehicle through the one of the external antenna and the internal antenna selected, wherein the acquired current position information and vehicle information corresponding to the vehicle are transmitted to a rescue center by a text message.

9. The method according to claim 1 , further comprising setting a call channel for the eCall service function, the call channel connected to a rescue center, wherein the call channel includes at least one of a voice call channel, a video call channel, and a packet data channel.

10. The method according to claim 5 , wherein a distance of the designated second movement section is less than that of the designated first movement section.

11. The method according to claim 1 , further comprising informing, by the rescue center, the identified insurance company of accident occurrence data.