A method and apparatus for transmitting two signals on a single channel comprising a single frequency and a single time slot are disclosed. The method includes: generating a first training sequence from a first set of training sequences; generating a second training sequence from a second set of training sequences. The first and second training sequences have a low cross-correlation ratio with respect to each other; and the second set of training sequences is different from the first set of training sequences. First and second data are generated. The first data is combined with the first training sequence to produce first combined data and the second data is combined with the second training sequence to produce second combined data. The first and second combined data are transmitted on the single channel by a single transmitting apparatus.