A data scheduling method, comprising: a) sending, by a first base station, first downlink authorization and first downlink data to a mobile device at a first transmission time interval, TTI, by using a first hybrid automatic repeat request, HARQ, process, wherein the first downlink data carries a first new data indicator,NDI, in a first state; b) sending, by the first base station, second downlink authorization and second downlink data to the mobile device at a second TTI by using a second HARQ process, wherein the second downlink data carries a second NDI in a second state; c) sending, by the first base station, third downlink authorization and third downlink data to the mobile device at a third TTI by using the first HARQ process, wherein the third downlink data carries the first NDI in a third state, and the third state is obtained by inverting the first state of the first NDI; and d) receiving, by the first base station at a fourth TTI, a second feedback result that is sent by a second base station and that is corresponding to the second downlink data, and sending, by the first base station at the fourth TTI by using the second HARQ process, fourth downlink authorization and the retransmitted second downlink data to the mobile device according to negative acknowledgement NACK information comprised in the second feedback result, e) wherein the retransmitted second downlink data carries the second NDI in the second state, and there is an inter-station transmission delay between the second base station and the first base station; f) receiving, by the first base station at a fifth TTI, a first feedback result that is sent by the second base station and that is corresponding to the first downlink data, and sending, by the first base station at the fifth TTI by using the first HARQ process, fifth downlink authorization and the retransmitted first downlink data to the mobile device according to NACK information comprised in the first feedback result, wherein the retransmitted first downlink data carries the first NDI in the first state, the first state is obtained by inverting the third state of the first NDI, and a time difference between the fourth TTI and the second TTI is equal to a time difference between the fifth TTI and the first TTI; and g) wherein full scheduling is achieved by using the first HARQ process to send third downlink data to the mobile station in the third TTI - after sending the first data in the first TTI and before receiving the first feedback result at the fifth TTI and - after sending the second data at the second TTI and before receiving the second feedback result at the fourth TTI. a) sending, by a first base station, first downlink authorization and first downlink data to a mobile device at a first transmission time interval, TTI, by using a first hybrid automatic repeat request, HARQ, process, wherein the first downlink data carries a first new data indicator,NDI, in a first state; b) sending, by the first base station, second downlink authorization and second downlink data to the mobile device at a second TTI by using a second HARQ process, wherein the second downlink data carries a second NDI in a second state; c) sending, by the first base station, third downlink authorization and third downlink data to the mobile device at a third TTI by using the first HARQ process, wherein the third downlink data carries the first NDI in a third state, and the third state is obtained by inverting the first state of the first NDI; and d) receiving, by the first base station at a fourth TTI, a second feedback result that is sent by a second base station and that is corresponding to the second downlink data, and sending, by the first base station at the fourth TTI by using the second HARQ process, fourth downlink authorization and the retransmitted second downlink data to the mobile device according to negative acknowledgement NACK information comprised in the second feedback result, e) wherein the retransmitted second downlink data carries the second NDI in the second state, and there is an inter-station transmission delay between the second base station and the first base station; f) receiving, by the first base station at a fifth TTI, a first feedback result that is sent by the second base station and that is corresponding to the first downlink data, and sending, by the first base station at the fifth TTI by using the first HARQ process, fifth downlink authorization and the retransmitted first downlink data to the mobile device according to NACK information comprised in the first feedback result, wherein the retransmitted first downlink data carries the first NDI in the first state, the first state is obtained by inverting the third state of the first NDI, and a time difference between the fourth TTI and the second TTI is equal to a time difference between the fifth TTI and the first TTI; and g) wherein full scheduling is achieved by using the first HARQ process to send third downlink data to the mobile station in the third TTI - after sending the first data in the first TTI and before receiving the first feedback result at the fifth TTI and - after sending the second data at the second TTI and before receiving the second feedback result at the fourth TTI. - after sending the first data in the first TTI and before receiving the first feedback result at the fifth TTI and - after sending the second data at the second TTI and before receiving the second feedback result at the fourth TTI.