A transmission method, wherein the method comprises: obtaining, by a transmission device, scheduling grant information, wherein the scheduling grant information is used to schedule the transmission device to perform transmission in at least one Transmission Time Interval, TTI; and transmitting, by the transmission device, a target signal in the at least one TTI according to a type of to-be-transmitted data and a preset transmission policy, wherein, the transmitting, by the transmission device, a target signal in the at least one TTI according to a type of to-be-transmitted data and a preset transmission policy comprises: when the to-be-transmitted data is a non-empty data packet, performing, by the transmission device using a first specified reference signal, transmission on a resource indicated by the scheduling grant information; and when the to-be-transmitted data is an empty packet, performing at least one of the following: performing, by the transmission device using a reference signal different from the first specified reference signal, transmission on the resource indicated by the scheduling grant information, or performing, by the transmission device, transmission on a transmission resource different from the resource indicated by the scheduling grant information; wherein the reference signal different from the first specified reference signal comprises at least one of the following: a reference signal occupying a symbol different from that occupied by the first specified reference signal; a reference signal occupying a subcarrier different from that occupied by the first specified reference signal; a reference signal whose sequence is different from that of the first specified reference signal; or a reference signal formed by using a cyclic shift mode different from that used for the first specified reference signal. obtaining, by a transmission device, scheduling grant information, wherein the scheduling grant information is used to schedule the transmission device to perform transmission in at least one Transmission Time Interval, TTI; and transmitting, by the transmission device, a target signal in the at least one TTI according to a type of to-be-transmitted data and a preset transmission policy, wherein, the transmitting, by the transmission device, a target signal in the at least one TTI according to a type of to-be-transmitted data and a preset transmission policy comprises: when the to-be-transmitted data is a non-empty data packet, performing, by the transmission device using a first specified reference signal, transmission on a resource indicated by the scheduling grant information; and when the to-be-transmitted data is an empty packet, performing at least one of the following: performing, by the transmission device using a reference signal different from the first specified reference signal, transmission on the resource indicated by the scheduling grant information, or performing, by the transmission device, transmission on a transmission resource different from the resource indicated by the scheduling grant information; wherein the reference signal different from the first specified reference signal comprises at least one of the following: a reference signal occupying a symbol different from that occupied by the first specified reference signal; a reference signal occupying a subcarrier different from that occupied by the first specified reference signal; a reference signal whose sequence is different from that of the first specified reference signal; or a reference signal formed by using a cyclic shift mode different from that used for the first specified reference signal. when the to-be-transmitted data is a non-empty data packet, performing, by the transmission device using a first specified reference signal, transmission on a resource indicated by the scheduling grant information; and when the to-be-transmitted data is an empty packet, performing at least one of the following: performing, by the transmission device using a reference signal different from the first specified reference signal, transmission on the resource indicated by the scheduling grant information, or performing, by the transmission device, transmission on a transmission resource different from the resource indicated by the scheduling grant information; performing, by the transmission device using a reference signal different from the first specified reference signal, transmission on the resource indicated by the scheduling grant information, or performing, by the transmission device, transmission on a transmission resource different from the resource indicated by the scheduling grant information; wherein the reference signal different from the first specified reference signal comprises at least one of the following: a reference signal occupying a symbol different from that occupied by the first specified reference signal; a reference signal occupying a subcarrier different from that occupied by the first specified reference signal; a reference signal whose sequence is different from that of the first specified reference signal; or a reference signal formed by using a cyclic shift mode different from that used for the first specified reference signal. a reference signal occupying a symbol different from that occupied by the first specified reference signal; a reference signal occupying a subcarrier different from that occupied by the first specified reference signal; a reference signal whose sequence is different from that of the first specified reference signal; or a reference signal formed by using a cyclic shift mode different from that used for the first specified reference signal.