An information transmission method, applied to a network device, comprising: transmitting downlink control information, DCI, to a terminal device based on a current random access type, wherein the DCI is used to schedule a random access response message corresponding to the current random access type; characterized in that the DCI is scrambled by a random access radio network temporary identity, RA-RNTI, and the RA-RNTI is associated with the current random access type; the RA-RNTI is calculated using the following formula: RA − RNTI = 1 + n 1 × s _ id + n 2 × 14 × t _ id + n 3 × 14 × A × f _ id + n 4 × 14 × A × B × ul _ carrier _ id + n 5 × E _ id, wherein s_id is an orthogonal frequency division multiplexing, OFDM, symbol index of the first symbol of a physical random access channel, PRACH, time domain resource, t_id is a slot index of the first slot of the PRACH time domain resource, and f_id is a frequency-domain index of a PRACH occasion, RO, on the PRACH time domain resource; A is any one of the following numerical values: a natural number configured by the network device, a preset value, a numerical value indicated by the terminal device, and the number of slots in a preset time window; B is any one of the following numerical values: a natural number configured by the network device, a preset value, a numerical value indicated by the terminal device, and the number of ROs for frequency-division multiplexing, FDM, on the PRACH time domain resource; ul_carrier_id is any one of the following numerical values: a natural number configured by the network device, a preset value, and a numerical value indicated by the terminal device; n1, n2, n3, n4, and n5 are preset coefficients; and E_id is a variable associated with random access type. transmitting downlink control information, DCI, to a terminal device based on a current random access type, wherein the DCI is used to schedule a random access response message corresponding to the current random access type; characterized in that the DCI is scrambled by a random access radio network temporary identity, RA-RNTI, and the RA-RNTI is associated with the current random access type; the RA-RNTI is calculated using the following formula: RA − RNTI = 1 + n 1 × s _ id + n 2 × 14 × t _ id + n 3 × 14 × A × f _ id + n 4 × 14 × A × B × ul _ carrier _ id + n 5 × E _ id, wherein s_id is an orthogonal frequency division multiplexing, OFDM, symbol index of the first symbol of a physical random access channel, PRACH, time domain resource, t_id is a slot index of the first slot of the PRACH time domain resource, and f_id is a frequency-domain index of a PRACH occasion, RO, on the PRACH time domain resource; A is any one of the following numerical values: a natural number configured by the network device, a preset value, a numerical value indicated by the terminal device, and the number of slots in a preset time window; B is any one of the following numerical values: a natural number configured by the network device, a preset value, a numerical value indicated by the terminal device, and the number of ROs for frequency-division multiplexing, FDM, on the PRACH time domain resource; ul_carrier_id is any one of the following numerical values: a natural number configured by the network device, a preset value, and a numerical value indicated by the terminal device; n1, n2, n3, n4, and n5 are preset coefficients; and E_id is a variable associated with random access type.