A wireless transmitreceive unit may transmit via a primary uplink carrier data, pilot and control channels for uplink transmissions on multiple uplink carriers, and transmit a data channel and a pilot channel via a secondary uplink carrier. The controller controls current to a light-emitting element of the at least one pixel circuit based on a data voltage in the first period. 5 meters behind the front end of the motor vehicle. The testing of semiconductor memory components classified as partial good memory is accelerated and simplified. Other systems and methods are also provided.